xref: /sqlite-3.40.0/src/test1.c (revision b43be55e)
1 /*
2 ** 2001 September 15
3 **
4 ** The author disclaims copyright to this source code.  In place of
5 ** a legal notice, here is a blessing:
6 **
7 **    May you do good and not evil.
8 **    May you find forgiveness for yourself and forgive others.
9 **    May you share freely, never taking more than you give.
10 **
11 *************************************************************************
12 ** Code for testing all sorts of SQLite interfaces.  This code
13 ** is not included in the SQLite library.  It is used for automated
14 ** testing of the SQLite library.
15 */
16 #include "sqliteInt.h"
17 #if SQLITE_OS_WIN
18 #  include "os_win.h"
19 #endif
20 
21 #include "vdbeInt.h"
22 #include "tcl.h"
23 #include <stdlib.h>
24 #include <string.h>
25 
26 /*
27 ** This is a copy of the first part of the SqliteDb structure in
28 ** tclsqlite.c.  We need it here so that the get_sqlite_pointer routine
29 ** can extract the sqlite3* pointer from an existing Tcl SQLite
30 ** connection.
31 */
32 struct SqliteDb {
33   sqlite3 *db;
34 };
35 
36 /*
37 ** Convert text generated by the "%p" conversion format back into
38 ** a pointer.
39 */
40 static int testHexToInt(int h){
41   if( h>='0' && h<='9' ){
42     return h - '0';
43   }else if( h>='a' && h<='f' ){
44     return h - 'a' + 10;
45   }else{
46     assert( h>='A' && h<='F' );
47     return h - 'A' + 10;
48   }
49 }
50 void *sqlite3TestTextToPtr(const char *z){
51   void *p;
52   u64 v;
53   u32 v2;
54   if( z[0]=='0' && z[1]=='x' ){
55     z += 2;
56   }
57   v = 0;
58   while( *z ){
59     v = (v<<4) + testHexToInt(*z);
60     z++;
61   }
62   if( sizeof(p)==sizeof(v) ){
63     memcpy(&p, &v, sizeof(p));
64   }else{
65     assert( sizeof(p)==sizeof(v2) );
66     v2 = (u32)v;
67     memcpy(&p, &v2, sizeof(p));
68   }
69   return p;
70 }
71 
72 
73 /*
74 ** A TCL command that returns the address of the sqlite* pointer
75 ** for an sqlite connection instance.  Bad things happen if the
76 ** input is not an sqlite connection.
77 */
78 static int get_sqlite_pointer(
79   void * clientData,
80   Tcl_Interp *interp,
81   int objc,
82   Tcl_Obj *CONST objv[]
83 ){
84   struct SqliteDb *p;
85   Tcl_CmdInfo cmdInfo;
86   char zBuf[100];
87   if( objc!=2 ){
88     Tcl_WrongNumArgs(interp, 1, objv, "SQLITE-CONNECTION");
89     return TCL_ERROR;
90   }
91   if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){
92     Tcl_AppendResult(interp, "command not found: ",
93            Tcl_GetString(objv[1]), (char*)0);
94     return TCL_ERROR;
95   }
96   p = (struct SqliteDb*)cmdInfo.objClientData;
97   sprintf(zBuf, "%p", p->db);
98   if( strncmp(zBuf,"0x",2) ){
99     sprintf(zBuf, "0x%p", p->db);
100   }
101   Tcl_AppendResult(interp, zBuf, 0);
102   return TCL_OK;
103 }
104 
105 /*
106 ** Decode a pointer to an sqlite3 object.
107 */
108 int getDbPointer(Tcl_Interp *interp, const char *zA, sqlite3 **ppDb){
109   struct SqliteDb *p;
110   Tcl_CmdInfo cmdInfo;
111   if( Tcl_GetCommandInfo(interp, zA, &cmdInfo) ){
112     p = (struct SqliteDb*)cmdInfo.objClientData;
113     *ppDb = p->db;
114   }else{
115     *ppDb = (sqlite3*)sqlite3TestTextToPtr(zA);
116   }
117   return TCL_OK;
118 }
119 
120 #if SQLITE_OS_WIN
121 /*
122 ** Decode a Win32 HANDLE object.
123 */
124 int getWin32Handle(Tcl_Interp *interp, const char *zA, LPHANDLE phFile){
125   *phFile = (HANDLE)sqlite3TestTextToPtr(zA);
126   return TCL_OK;
127 }
128 #endif
129 
130 extern const char *sqlite3ErrName(int);
131 #define t1ErrorName sqlite3ErrName
132 
133 /*
134 ** Convert an sqlite3_stmt* into an sqlite3*.  This depends on the
135 ** fact that the sqlite3* is the first field in the Vdbe structure.
136 */
137 #define StmtToDb(X)   sqlite3_db_handle(X)
138 
139 /*
140 ** Check a return value to make sure it agrees with the results
141 ** from sqlite3_errcode.
142 */
143 int sqlite3TestErrCode(Tcl_Interp *interp, sqlite3 *db, int rc){
144   if( sqlite3_threadsafe()==0 && rc!=SQLITE_MISUSE && rc!=SQLITE_OK
145    && sqlite3_errcode(db)!=rc ){
146     char zBuf[200];
147     int r2 = sqlite3_errcode(db);
148     sprintf(zBuf, "error code %s (%d) does not match sqlite3_errcode %s (%d)",
149        t1ErrorName(rc), rc, t1ErrorName(r2), r2);
150     Tcl_ResetResult(interp);
151     Tcl_AppendResult(interp, zBuf, 0);
152     return 1;
153   }
154   return 0;
155 }
156 
157 /*
158 ** Decode a pointer to an sqlite3_stmt object.
159 */
160 static int getStmtPointer(
161   Tcl_Interp *interp,
162   const char *zArg,
163   sqlite3_stmt **ppStmt
164 ){
165   *ppStmt = (sqlite3_stmt*)sqlite3TestTextToPtr(zArg);
166   return TCL_OK;
167 }
168 
169 /*
170 ** Generate a text representation of a pointer that can be understood
171 ** by the getDbPointer and getVmPointer routines above.
172 **
173 ** The problem is, on some machines (Solaris) if you do a printf with
174 ** "%p" you cannot turn around and do a scanf with the same "%p" and
175 ** get your pointer back.  You have to prepend a "0x" before it will
176 ** work.  Or at least that is what is reported to me (drh).  But this
177 ** behavior varies from machine to machine.  The solution used her is
178 ** to test the string right after it is generated to see if it can be
179 ** understood by scanf, and if not, try prepending an "0x" to see if
180 ** that helps.  If nothing works, a fatal error is generated.
181 */
182 int sqlite3TestMakePointerStr(Tcl_Interp *interp, char *zPtr, void *p){
183   sqlite3_snprintf(100, zPtr, "%p", p);
184   return TCL_OK;
185 }
186 
187 /*
188 ** The callback routine for sqlite3_exec_printf().
189 */
190 static int exec_printf_cb(void *pArg, int argc, char **argv, char **name){
191   Tcl_DString *str = (Tcl_DString*)pArg;
192   int i;
193 
194   if( Tcl_DStringLength(str)==0 ){
195     for(i=0; i<argc; i++){
196       Tcl_DStringAppendElement(str, name[i] ? name[i] : "NULL");
197     }
198   }
199   for(i=0; i<argc; i++){
200     Tcl_DStringAppendElement(str, argv[i] ? argv[i] : "NULL");
201   }
202   return 0;
203 }
204 
205 /*
206 ** The I/O tracing callback.
207 */
208 #if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
209 static FILE *iotrace_file = 0;
210 static void io_trace_callback(const char *zFormat, ...){
211   va_list ap;
212   va_start(ap, zFormat);
213   vfprintf(iotrace_file, zFormat, ap);
214   va_end(ap);
215   fflush(iotrace_file);
216 }
217 #endif
218 
219 /*
220 ** Usage:  io_trace FILENAME
221 **
222 ** Turn I/O tracing on or off.  If FILENAME is not an empty string,
223 ** I/O tracing begins going into FILENAME. If FILENAME is an empty
224 ** string, I/O tracing is turned off.
225 */
226 static int test_io_trace(
227   void *NotUsed,
228   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
229   int argc,              /* Number of arguments */
230   char **argv            /* Text of each argument */
231 ){
232 #if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE)
233   if( argc!=2 ){
234     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
235           " FILENAME\"", 0);
236     return TCL_ERROR;
237   }
238   if( iotrace_file ){
239     if( iotrace_file!=stdout && iotrace_file!=stderr ){
240       fclose(iotrace_file);
241     }
242     iotrace_file = 0;
243     sqlite3IoTrace = 0;
244   }
245   if( argv[1][0] ){
246     if( strcmp(argv[1],"stdout")==0 ){
247       iotrace_file = stdout;
248     }else if( strcmp(argv[1],"stderr")==0 ){
249       iotrace_file = stderr;
250     }else{
251       iotrace_file = fopen(argv[1], "w");
252     }
253     sqlite3IoTrace = io_trace_callback;
254   }
255 #endif
256   return TCL_OK;
257 }
258 
259 /*
260 ** Usage:  clang_sanitize_address
261 **
262 ** Returns true if the program was compiled using clang with the
263 ** -fsanitize=address switch on the command line. False otherwise.
264 **
265 ** Also return true if the OMIT_MISUSE environment variable exists.
266 */
267 static int clang_sanitize_address(
268   void *NotUsed,
269   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
270   int argc,              /* Number of arguments */
271   char **argv            /* Text of each argument */
272 ){
273   int res = 0;
274 #if defined(__has_feature)
275 # if __has_feature(address_sanitizer)
276   res = 1;
277 # endif
278 #endif
279   if( res==0 && getenv("OMIT_MISUSE")!=0 ) res = 1;
280   Tcl_SetObjResult(interp, Tcl_NewIntObj(res));
281   return TCL_OK;
282 }
283 
284 /*
285 ** Usage:  sqlite3_exec_printf  DB  FORMAT  STRING
286 **
287 ** Invoke the sqlite3_exec_printf() interface using the open database
288 ** DB.  The SQL is the string FORMAT.  The format string should contain
289 ** one %s or %q.  STRING is the value inserted into %s or %q.
290 */
291 static int test_exec_printf(
292   void *NotUsed,
293   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
294   int argc,              /* Number of arguments */
295   char **argv            /* Text of each argument */
296 ){
297   sqlite3 *db;
298   Tcl_DString str;
299   int rc;
300   char *zErr = 0;
301   char *zSql;
302   char zBuf[30];
303   if( argc!=4 ){
304     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
305        " DB FORMAT STRING", 0);
306     return TCL_ERROR;
307   }
308   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
309   Tcl_DStringInit(&str);
310   zSql = sqlite3_mprintf(argv[2], argv[3]);
311   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
312   sqlite3_free(zSql);
313   sprintf(zBuf, "%d", rc);
314   Tcl_AppendElement(interp, zBuf);
315   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
316   Tcl_DStringFree(&str);
317   if( zErr ) sqlite3_free(zErr);
318   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
319   return TCL_OK;
320 }
321 
322 /*
323 ** Usage:  sqlite3_exec_hex  DB  HEX
324 **
325 ** Invoke the sqlite3_exec() on a string that is obtained by translating
326 ** HEX into ASCII.  Most characters are translated as is.  %HH becomes
327 ** a hex character.
328 */
329 static int test_exec_hex(
330   void *NotUsed,
331   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
332   int argc,              /* Number of arguments */
333   char **argv            /* Text of each argument */
334 ){
335   sqlite3 *db;
336   Tcl_DString str;
337   int rc, i, j;
338   char *zErr = 0;
339   char *zHex;
340   char zSql[500];
341   char zBuf[30];
342   if( argc!=3 ){
343     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
344        " DB HEX", 0);
345     return TCL_ERROR;
346   }
347   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
348   zHex = argv[2];
349   for(i=j=0; i<sizeof(zSql) && zHex[j]; i++, j++){
350     if( zHex[j]=='%' && zHex[j+2] && zHex[j+2] ){
351       zSql[i] = (testHexToInt(zHex[j+1])<<4) + testHexToInt(zHex[j+2]);
352       j += 2;
353     }else{
354       zSql[i] = zHex[j];
355     }
356   }
357   zSql[i] = 0;
358   Tcl_DStringInit(&str);
359   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
360   sprintf(zBuf, "%d", rc);
361   Tcl_AppendElement(interp, zBuf);
362   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
363   Tcl_DStringFree(&str);
364   if( zErr ) sqlite3_free(zErr);
365   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
366   return TCL_OK;
367 }
368 
369 /*
370 ** Usage:  db_enter DB
371 **         db_leave DB
372 **
373 ** Enter or leave the mutex on a database connection.
374 */
375 static int db_enter(
376   void *NotUsed,
377   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
378   int argc,              /* Number of arguments */
379   char **argv            /* Text of each argument */
380 ){
381   sqlite3 *db;
382   if( argc!=2 ){
383     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
384        " DB", 0);
385     return TCL_ERROR;
386   }
387   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
388   sqlite3_mutex_enter(db->mutex);
389   return TCL_OK;
390 }
391 static int db_leave(
392   void *NotUsed,
393   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
394   int argc,              /* Number of arguments */
395   char **argv            /* Text of each argument */
396 ){
397   sqlite3 *db;
398   if( argc!=2 ){
399     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
400        " DB", 0);
401     return TCL_ERROR;
402   }
403   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
404   sqlite3_mutex_leave(db->mutex);
405   return TCL_OK;
406 }
407 
408 /*
409 ** Usage:  sqlite3_exec  DB  SQL
410 **
411 ** Invoke the sqlite3_exec interface using the open database DB
412 */
413 static int test_exec(
414   void *NotUsed,
415   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
416   int argc,              /* Number of arguments */
417   char **argv            /* Text of each argument */
418 ){
419   sqlite3 *db;
420   Tcl_DString str;
421   int rc;
422   char *zErr = 0;
423   char *zSql;
424   int i, j;
425   char zBuf[30];
426   if( argc!=3 ){
427     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
428        " DB SQL", 0);
429     return TCL_ERROR;
430   }
431   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
432   Tcl_DStringInit(&str);
433   zSql = sqlite3_mprintf("%s", argv[2]);
434   for(i=j=0; zSql[i];){
435     if( zSql[i]=='%' ){
436       zSql[j++] = (testHexToInt(zSql[i+1])<<4) + testHexToInt(zSql[i+2]);
437       i += 3;
438     }else{
439       zSql[j++] = zSql[i++];
440     }
441   }
442   zSql[j] = 0;
443   rc = sqlite3_exec(db, zSql, exec_printf_cb, &str, &zErr);
444   sqlite3_free(zSql);
445   sprintf(zBuf, "%d", rc);
446   Tcl_AppendElement(interp, zBuf);
447   Tcl_AppendElement(interp, rc==SQLITE_OK ? Tcl_DStringValue(&str) : zErr);
448   Tcl_DStringFree(&str);
449   if( zErr ) sqlite3_free(zErr);
450   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
451   return TCL_OK;
452 }
453 
454 /*
455 ** Usage:  sqlite3_exec_nr  DB  SQL
456 **
457 ** Invoke the sqlite3_exec interface using the open database DB.  Discard
458 ** all results
459 */
460 static int test_exec_nr(
461   void *NotUsed,
462   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
463   int argc,              /* Number of arguments */
464   char **argv            /* Text of each argument */
465 ){
466   sqlite3 *db;
467   int rc;
468   char *zErr = 0;
469   if( argc!=3 ){
470     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
471        " DB SQL", 0);
472     return TCL_ERROR;
473   }
474   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
475   rc = sqlite3_exec(db, argv[2], 0, 0, &zErr);
476   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
477   return TCL_OK;
478 }
479 
480 /*
481 ** Usage:  sqlite3_mprintf_z_test  SEPARATOR  ARG0  ARG1 ...
482 **
483 ** Test the %z format of sqlite_mprintf().  Use multiple mprintf() calls to
484 ** concatenate arg0 through argn using separator as the separator.
485 ** Return the result.
486 */
487 static int test_mprintf_z(
488   void *NotUsed,
489   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
490   int argc,              /* Number of arguments */
491   char **argv            /* Text of each argument */
492 ){
493   char *zResult = 0;
494   int i;
495 
496   for(i=2; i<argc && (i==2 || zResult); i++){
497     zResult = sqlite3_mprintf("%z%s%s", zResult, argv[1], argv[i]);
498   }
499   Tcl_AppendResult(interp, zResult, 0);
500   sqlite3_free(zResult);
501   return TCL_OK;
502 }
503 
504 /*
505 ** Usage:  sqlite3_mprintf_n_test  STRING
506 **
507 ** Test the %n format of sqlite_mprintf().  Return the length of the
508 ** input string.
509 */
510 static int test_mprintf_n(
511   void *NotUsed,
512   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
513   int argc,              /* Number of arguments */
514   char **argv            /* Text of each argument */
515 ){
516   char *zStr;
517   int n = 0;
518   zStr = sqlite3_mprintf("%s%n", argv[1], &n);
519   sqlite3_free(zStr);
520   Tcl_SetObjResult(interp, Tcl_NewIntObj(n));
521   return TCL_OK;
522 }
523 
524 /*
525 ** Usage:  sqlite3_snprintf_int  SIZE FORMAT  INT
526 **
527 ** Test the of sqlite3_snprintf() routine.  SIZE is the size of the
528 ** output buffer in bytes.  The maximum size is 100.  FORMAT is the
529 ** format string.  INT is a single integer argument.  The FORMAT
530 ** string must require no more than this one integer argument.  If
531 ** You pass in a format string that requires more than one argument,
532 ** bad things will happen.
533 */
534 static int test_snprintf_int(
535   void *NotUsed,
536   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
537   int argc,              /* Number of arguments */
538   char **argv            /* Text of each argument */
539 ){
540   char zStr[100];
541   int n = atoi(argv[1]);
542   const char *zFormat = argv[2];
543   int a1 = atoi(argv[3]);
544   if( n>sizeof(zStr) ) n = sizeof(zStr);
545   sqlite3_snprintf(sizeof(zStr), zStr, "abcdefghijklmnopqrstuvwxyz");
546   sqlite3_snprintf(n, zStr, zFormat, a1);
547   Tcl_AppendResult(interp, zStr, 0);
548   return TCL_OK;
549 }
550 
551 #ifndef SQLITE_OMIT_GET_TABLE
552 
553 /*
554 ** Usage:  sqlite3_get_table_printf  DB  FORMAT  STRING  ?--no-counts?
555 **
556 ** Invoke the sqlite3_get_table_printf() interface using the open database
557 ** DB.  The SQL is the string FORMAT.  The format string should contain
558 ** one %s or %q.  STRING is the value inserted into %s or %q.
559 */
560 static int test_get_table_printf(
561   void *NotUsed,
562   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
563   int argc,              /* Number of arguments */
564   char **argv            /* Text of each argument */
565 ){
566   sqlite3 *db;
567   Tcl_DString str;
568   int rc;
569   char *zErr = 0;
570   int nRow = 0, nCol = 0;
571   char **aResult;
572   int i;
573   char zBuf[30];
574   char *zSql;
575   int resCount = -1;
576   if( argc==5 ){
577     if( Tcl_GetInt(interp, argv[4], &resCount) ) return TCL_ERROR;
578   }
579   if( argc!=4 && argc!=5 ){
580     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
581        " DB FORMAT STRING ?COUNT?", 0);
582     return TCL_ERROR;
583   }
584   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
585   Tcl_DStringInit(&str);
586   zSql = sqlite3_mprintf(argv[2],argv[3]);
587   if( argc==5 ){
588     rc = sqlite3_get_table(db, zSql, &aResult, 0, 0, &zErr);
589   }else{
590     rc = sqlite3_get_table(db, zSql, &aResult, &nRow, &nCol, &zErr);
591     resCount = (nRow+1)*nCol;
592   }
593   sqlite3_free(zSql);
594   sprintf(zBuf, "%d", rc);
595   Tcl_AppendElement(interp, zBuf);
596   if( rc==SQLITE_OK ){
597     if( argc==4 ){
598       sprintf(zBuf, "%d", nRow);
599       Tcl_AppendElement(interp, zBuf);
600       sprintf(zBuf, "%d", nCol);
601       Tcl_AppendElement(interp, zBuf);
602     }
603     for(i=0; i<resCount; i++){
604       Tcl_AppendElement(interp, aResult[i] ? aResult[i] : "NULL");
605     }
606   }else{
607     Tcl_AppendElement(interp, zErr);
608   }
609   sqlite3_free_table(aResult);
610   if( zErr ) sqlite3_free(zErr);
611   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
612   return TCL_OK;
613 }
614 
615 #endif /* SQLITE_OMIT_GET_TABLE */
616 
617 
618 /*
619 ** Usage:  sqlite3_last_insert_rowid DB
620 **
621 ** Returns the integer ROWID of the most recent insert.
622 */
623 static int test_last_rowid(
624   void *NotUsed,
625   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
626   int argc,              /* Number of arguments */
627   char **argv            /* Text of each argument */
628 ){
629   sqlite3 *db;
630   char zBuf[30];
631 
632   if( argc!=2 ){
633     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " DB\"", 0);
634     return TCL_ERROR;
635   }
636   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
637   sprintf(zBuf, "%lld", sqlite3_last_insert_rowid(db));
638   Tcl_AppendResult(interp, zBuf, 0);
639   return SQLITE_OK;
640 }
641 
642 /*
643 ** Usage:  sqlite3_key DB KEY
644 **
645 ** Set the codec key.
646 */
647 static int test_key(
648   void *NotUsed,
649   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
650   int argc,              /* Number of arguments */
651   char **argv            /* Text of each argument */
652 ){
653 #ifdef SQLITE_HAS_CODEC
654   sqlite3 *db;
655   const char *zKey;
656   int nKey;
657   if( argc!=3 ){
658     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
659        " FILENAME\"", 0);
660     return TCL_ERROR;
661   }
662   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
663   zKey = argv[2];
664   nKey = strlen(zKey);
665   sqlite3_key(db, zKey, nKey);
666 #endif
667   return TCL_OK;
668 }
669 
670 /*
671 ** Usage:  sqlite3_rekey DB KEY
672 **
673 ** Change the codec key.
674 */
675 static int test_rekey(
676   void *NotUsed,
677   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
678   int argc,              /* Number of arguments */
679   char **argv            /* Text of each argument */
680 ){
681 #ifdef SQLITE_HAS_CODEC
682   sqlite3 *db;
683   const char *zKey;
684   int nKey;
685   if( argc!=3 ){
686     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
687        " FILENAME\"", 0);
688     return TCL_ERROR;
689   }
690   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
691   zKey = argv[2];
692   nKey = strlen(zKey);
693   sqlite3_rekey(db, zKey, nKey);
694 #endif
695   return TCL_OK;
696 }
697 
698 /*
699 ** Usage:  sqlite3_close DB
700 **
701 ** Closes the database opened by sqlite3_open.
702 */
703 static int sqlite_test_close(
704   void *NotUsed,
705   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
706   int argc,              /* Number of arguments */
707   char **argv            /* Text of each argument */
708 ){
709   sqlite3 *db;
710   int rc;
711   if( argc!=2 ){
712     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
713        " FILENAME\"", 0);
714     return TCL_ERROR;
715   }
716   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
717   rc = sqlite3_close(db);
718   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
719   return TCL_OK;
720 }
721 
722 /*
723 ** Usage:  sqlite3_close_v2 DB
724 **
725 ** Closes the database opened by sqlite3_open.
726 */
727 static int sqlite_test_close_v2(
728   void *NotUsed,
729   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
730   int argc,              /* Number of arguments */
731   char **argv            /* Text of each argument */
732 ){
733   sqlite3 *db;
734   int rc;
735   if( argc!=2 ){
736     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
737        " FILENAME\"", 0);
738     return TCL_ERROR;
739   }
740   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
741   rc = sqlite3_close_v2(db);
742   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
743   return TCL_OK;
744 }
745 
746 /*
747 ** Implementation of the x_coalesce() function.
748 ** Return the first argument non-NULL argument.
749 */
750 static void t1_ifnullFunc(
751   sqlite3_context *context,
752   int argc,
753   sqlite3_value **argv
754 ){
755   int i;
756   for(i=0; i<argc; i++){
757     if( SQLITE_NULL!=sqlite3_value_type(argv[i]) ){
758       int n = sqlite3_value_bytes(argv[i]);
759       sqlite3_result_text(context, (char*)sqlite3_value_text(argv[i]),
760           n, SQLITE_TRANSIENT);
761       break;
762     }
763   }
764 }
765 
766 /*
767 ** These are test functions.    hex8() interprets its argument as
768 ** UTF8 and returns a hex encoding.  hex16le() interprets its argument
769 ** as UTF16le and returns a hex encoding.
770 */
771 static void hex8Func(sqlite3_context *p, int argc, sqlite3_value **argv){
772   const unsigned char *z;
773   int i;
774   char zBuf[200];
775   z = sqlite3_value_text(argv[0]);
776   for(i=0; i<sizeof(zBuf)/2 - 2 && z[i]; i++){
777     sprintf(&zBuf[i*2], "%02x", z[i]&0xff);
778   }
779   zBuf[i*2] = 0;
780   sqlite3_result_text(p, (char*)zBuf, -1, SQLITE_TRANSIENT);
781 }
782 #ifndef SQLITE_OMIT_UTF16
783 static void hex16Func(sqlite3_context *p, int argc, sqlite3_value **argv){
784   const unsigned short int *z;
785   int i;
786   char zBuf[400];
787   z = sqlite3_value_text16(argv[0]);
788   for(i=0; i<sizeof(zBuf)/4 - 4 && z[i]; i++){
789     sprintf(&zBuf[i*4], "%04x", z[i]&0xff);
790   }
791   zBuf[i*4] = 0;
792   sqlite3_result_text(p, (char*)zBuf, -1, SQLITE_TRANSIENT);
793 }
794 #endif
795 
796 /*
797 ** A structure into which to accumulate text.
798 */
799 struct dstr {
800   int nAlloc;  /* Space allocated */
801   int nUsed;   /* Space used */
802   char *z;     /* The space */
803 };
804 
805 /*
806 ** Append text to a dstr
807 */
808 static void dstrAppend(struct dstr *p, const char *z, int divider){
809   int n = (int)strlen(z);
810   if( p->nUsed + n + 2 > p->nAlloc ){
811     char *zNew;
812     p->nAlloc = p->nAlloc*2 + n + 200;
813     zNew = sqlite3_realloc(p->z, p->nAlloc);
814     if( zNew==0 ){
815       sqlite3_free(p->z);
816       memset(p, 0, sizeof(*p));
817       return;
818     }
819     p->z = zNew;
820   }
821   if( divider && p->nUsed>0 ){
822     p->z[p->nUsed++] = divider;
823   }
824   memcpy(&p->z[p->nUsed], z, n+1);
825   p->nUsed += n;
826 }
827 
828 /*
829 ** Invoked for each callback from sqlite3ExecFunc
830 */
831 static int execFuncCallback(void *pData, int argc, char **argv, char **NotUsed){
832   struct dstr *p = (struct dstr*)pData;
833   int i;
834   for(i=0; i<argc; i++){
835     if( argv[i]==0 ){
836       dstrAppend(p, "NULL", ' ');
837     }else{
838       dstrAppend(p, argv[i], ' ');
839     }
840   }
841   return 0;
842 }
843 
844 /*
845 ** Implementation of the x_sqlite_exec() function.  This function takes
846 ** a single argument and attempts to execute that argument as SQL code.
847 ** This is illegal and should set the SQLITE_MISUSE flag on the database.
848 **
849 ** 2004-Jan-07:  We have changed this to make it legal to call sqlite3_exec()
850 ** from within a function call.
851 **
852 ** This routine simulates the effect of having two threads attempt to
853 ** use the same database at the same time.
854 */
855 static void sqlite3ExecFunc(
856   sqlite3_context *context,
857   int argc,
858   sqlite3_value **argv
859 ){
860   struct dstr x;
861   memset(&x, 0, sizeof(x));
862   (void)sqlite3_exec((sqlite3*)sqlite3_user_data(context),
863       (char*)sqlite3_value_text(argv[0]),
864       execFuncCallback, &x, 0);
865   sqlite3_result_text(context, x.z, x.nUsed, SQLITE_TRANSIENT);
866   sqlite3_free(x.z);
867 }
868 
869 /*
870 ** Implementation of tkt2213func(), a scalar function that takes exactly
871 ** one argument. It has two interesting features:
872 **
873 ** * It calls sqlite3_value_text() 3 times on the argument sqlite3_value*.
874 **   If the three pointers returned are not the same an SQL error is raised.
875 **
876 ** * Otherwise it returns a copy of the text representation of its
877 **   argument in such a way as the VDBE representation is a Mem* cell
878 **   with the MEM_Term flag clear.
879 **
880 ** Ticket #2213 can therefore be tested by evaluating the following
881 ** SQL expression:
882 **
883 **   tkt2213func(tkt2213func('a string'));
884 */
885 static void tkt2213Function(
886   sqlite3_context *context,
887   int argc,
888   sqlite3_value **argv
889 ){
890   int nText;
891   unsigned char const *zText1;
892   unsigned char const *zText2;
893   unsigned char const *zText3;
894 
895   nText = sqlite3_value_bytes(argv[0]);
896   zText1 = sqlite3_value_text(argv[0]);
897   zText2 = sqlite3_value_text(argv[0]);
898   zText3 = sqlite3_value_text(argv[0]);
899 
900   if( zText1!=zText2 || zText2!=zText3 ){
901     sqlite3_result_error(context, "tkt2213 is not fixed", -1);
902   }else{
903     char *zCopy = (char *)sqlite3_malloc(nText);
904     memcpy(zCopy, zText1, nText);
905     sqlite3_result_text(context, zCopy, nText, sqlite3_free);
906   }
907 }
908 
909 /*
910 ** The following SQL function takes 4 arguments.  The 2nd and
911 ** 4th argument must be one of these strings:  'text', 'text16',
912 ** or 'blob' corresponding to API functions
913 **
914 **      sqlite3_value_text()
915 **      sqlite3_value_text16()
916 **      sqlite3_value_blob()
917 **
918 ** The third argument is a string, either 'bytes' or 'bytes16' or 'noop',
919 ** corresponding to APIs:
920 **
921 **      sqlite3_value_bytes()
922 **      sqlite3_value_bytes16()
923 **      noop
924 **
925 ** The APIs designated by the 2nd through 4th arguments are applied
926 ** to the first argument in order.  If the pointers returned by the
927 ** second and fourth are different, this routine returns 1.  Otherwise,
928 ** this routine returns 0.
929 **
930 ** This function is used to test to see when returned pointers from
931 ** the _text(), _text16() and _blob() APIs become invalidated.
932 */
933 static void ptrChngFunction(
934   sqlite3_context *context,
935   int argc,
936   sqlite3_value **argv
937 ){
938   const void *p1, *p2;
939   const char *zCmd;
940   if( argc!=4 ) return;
941   zCmd = (const char*)sqlite3_value_text(argv[1]);
942   if( zCmd==0 ) return;
943   if( strcmp(zCmd,"text")==0 ){
944     p1 = (const void*)sqlite3_value_text(argv[0]);
945 #ifndef SQLITE_OMIT_UTF16
946   }else if( strcmp(zCmd, "text16")==0 ){
947     p1 = (const void*)sqlite3_value_text16(argv[0]);
948 #endif
949   }else if( strcmp(zCmd, "blob")==0 ){
950     p1 = (const void*)sqlite3_value_blob(argv[0]);
951   }else{
952     return;
953   }
954   zCmd = (const char*)sqlite3_value_text(argv[2]);
955   if( zCmd==0 ) return;
956   if( strcmp(zCmd,"bytes")==0 ){
957     sqlite3_value_bytes(argv[0]);
958 #ifndef SQLITE_OMIT_UTF16
959   }else if( strcmp(zCmd, "bytes16")==0 ){
960     sqlite3_value_bytes16(argv[0]);
961 #endif
962   }else if( strcmp(zCmd, "noop")==0 ){
963     /* do nothing */
964   }else{
965     return;
966   }
967   zCmd = (const char*)sqlite3_value_text(argv[3]);
968   if( zCmd==0 ) return;
969   if( strcmp(zCmd,"text")==0 ){
970     p2 = (const void*)sqlite3_value_text(argv[0]);
971 #ifndef SQLITE_OMIT_UTF16
972   }else if( strcmp(zCmd, "text16")==0 ){
973     p2 = (const void*)sqlite3_value_text16(argv[0]);
974 #endif
975   }else if( strcmp(zCmd, "blob")==0 ){
976     p2 = (const void*)sqlite3_value_blob(argv[0]);
977   }else{
978     return;
979   }
980   sqlite3_result_int(context, p1!=p2);
981 }
982 
983 /*
984 ** This SQL function returns a different answer each time it is called, even if
985 ** the arguments are the same.
986 */
987 static void nondeterministicFunction(
988   sqlite3_context *context,
989   int argc,
990   sqlite3_value **argv
991 ){
992   static int cnt = 0;
993   sqlite3_result_int(context, cnt++);
994 }
995 
996 /*
997 ** Usage:  sqlite3_create_function DB
998 **
999 ** Call the sqlite3_create_function API on the given database in order
1000 ** to create a function named "x_coalesce".  This function does the same thing
1001 ** as the "coalesce" function.  This function also registers an SQL function
1002 ** named "x_sqlite_exec" that invokes sqlite3_exec().  Invoking sqlite3_exec()
1003 ** in this way is illegal recursion and should raise an SQLITE_MISUSE error.
1004 ** The effect is similar to trying to use the same database connection from
1005 ** two threads at the same time.
1006 **
1007 ** The original motivation for this routine was to be able to call the
1008 ** sqlite3_create_function function while a query is in progress in order
1009 ** to test the SQLITE_MISUSE detection logic.
1010 */
1011 static int test_create_function(
1012   void *NotUsed,
1013   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1014   int argc,              /* Number of arguments */
1015   char **argv            /* Text of each argument */
1016 ){
1017   int rc;
1018   sqlite3 *db;
1019 
1020   if( argc!=2 ){
1021     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1022        " DB\"", 0);
1023     return TCL_ERROR;
1024   }
1025   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
1026   rc = sqlite3_create_function(db, "x_coalesce", -1, SQLITE_UTF8, 0,
1027         t1_ifnullFunc, 0, 0);
1028   if( rc==SQLITE_OK ){
1029     rc = sqlite3_create_function(db, "hex8", 1, SQLITE_UTF8 | SQLITE_DETERMINISTIC,
1030           0, hex8Func, 0, 0);
1031   }
1032 #ifndef SQLITE_OMIT_UTF16
1033   if( rc==SQLITE_OK ){
1034     rc = sqlite3_create_function(db, "hex16", 1, SQLITE_UTF16 | SQLITE_DETERMINISTIC,
1035           0, hex16Func, 0, 0);
1036   }
1037 #endif
1038   if( rc==SQLITE_OK ){
1039     rc = sqlite3_create_function(db, "tkt2213func", 1, SQLITE_ANY, 0,
1040           tkt2213Function, 0, 0);
1041   }
1042   if( rc==SQLITE_OK ){
1043     rc = sqlite3_create_function(db, "pointer_change", 4, SQLITE_ANY, 0,
1044           ptrChngFunction, 0, 0);
1045   }
1046 
1047   /* Functions counter1() and counter2() have the same implementation - they
1048   ** both return an ascending integer with each call.  But counter1() is marked
1049   ** as non-deterministic and counter2() is marked as deterministic.
1050   */
1051   if( rc==SQLITE_OK ){
1052     rc = sqlite3_create_function(db, "counter1", -1, SQLITE_UTF8,
1053           0, nondeterministicFunction, 0, 0);
1054   }
1055   if( rc==SQLITE_OK ){
1056     rc = sqlite3_create_function(db, "counter2", -1, SQLITE_UTF8|SQLITE_DETERMINISTIC,
1057           0, nondeterministicFunction, 0, 0);
1058   }
1059 
1060 #ifndef SQLITE_OMIT_UTF16
1061   /* Use the sqlite3_create_function16() API here. Mainly for fun, but also
1062   ** because it is not tested anywhere else. */
1063   if( rc==SQLITE_OK ){
1064     const void *zUtf16;
1065     sqlite3_value *pVal;
1066     sqlite3_mutex_enter(db->mutex);
1067     pVal = sqlite3ValueNew(db);
1068     sqlite3ValueSetStr(pVal, -1, "x_sqlite_exec", SQLITE_UTF8, SQLITE_STATIC);
1069     zUtf16 = sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
1070     if( db->mallocFailed ){
1071       rc = SQLITE_NOMEM;
1072     }else{
1073       rc = sqlite3_create_function16(db, zUtf16,
1074                 1, SQLITE_UTF16, db, sqlite3ExecFunc, 0, 0);
1075     }
1076     sqlite3ValueFree(pVal);
1077     sqlite3_mutex_leave(db->mutex);
1078   }
1079 #endif
1080 
1081   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
1082   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
1083   return TCL_OK;
1084 }
1085 
1086 /*
1087 ** Routines to implement the x_count() aggregate function.
1088 **
1089 ** x_count() counts the number of non-null arguments.  But there are
1090 ** some twists for testing purposes.
1091 **
1092 ** If the argument to x_count() is 40 then a UTF-8 error is reported
1093 ** on the step function.  If x_count(41) is seen, then a UTF-16 error
1094 ** is reported on the step function.  If the total count is 42, then
1095 ** a UTF-8 error is reported on the finalize function.
1096 */
1097 typedef struct t1CountCtx t1CountCtx;
1098 struct t1CountCtx {
1099   int n;
1100 };
1101 static void t1CountStep(
1102   sqlite3_context *context,
1103   int argc,
1104   sqlite3_value **argv
1105 ){
1106   t1CountCtx *p;
1107   p = sqlite3_aggregate_context(context, sizeof(*p));
1108   if( (argc==0 || SQLITE_NULL!=sqlite3_value_type(argv[0]) ) && p ){
1109     p->n++;
1110   }
1111   if( argc>0 ){
1112     int v = sqlite3_value_int(argv[0]);
1113     if( v==40 ){
1114       sqlite3_result_error(context, "value of 40 handed to x_count", -1);
1115 #ifndef SQLITE_OMIT_UTF16
1116     }else if( v==41 ){
1117       const char zUtf16ErrMsg[] = { 0, 0x61, 0, 0x62, 0, 0x63, 0, 0, 0};
1118       sqlite3_result_error16(context, &zUtf16ErrMsg[1-SQLITE_BIGENDIAN], -1);
1119 #endif
1120     }
1121   }
1122 }
1123 static void t1CountFinalize(sqlite3_context *context){
1124   t1CountCtx *p;
1125   p = sqlite3_aggregate_context(context, sizeof(*p));
1126   if( p ){
1127     if( p->n==42 ){
1128       sqlite3_result_error(context, "x_count totals to 42", -1);
1129     }else{
1130       sqlite3_result_int(context, p ? p->n : 0);
1131     }
1132   }
1133 }
1134 
1135 #ifndef SQLITE_OMIT_DEPRECATED
1136 static void legacyCountStep(
1137   sqlite3_context *context,
1138   int argc,
1139   sqlite3_value **argv
1140 ){
1141   /* no-op */
1142 }
1143 
1144 static void legacyCountFinalize(sqlite3_context *context){
1145   sqlite3_result_int(context, sqlite3_aggregate_count(context));
1146 }
1147 #endif
1148 
1149 /*
1150 ** Usage:  sqlite3_create_aggregate DB
1151 **
1152 ** Call the sqlite3_create_function API on the given database in order
1153 ** to create a function named "x_count".  This function is similar
1154 ** to the built-in count() function, with a few special quirks
1155 ** for testing the sqlite3_result_error() APIs.
1156 **
1157 ** The original motivation for this routine was to be able to call the
1158 ** sqlite3_create_aggregate function while a query is in progress in order
1159 ** to test the SQLITE_MISUSE detection logic.  See misuse.test.
1160 **
1161 ** This routine was later extended to test the use of sqlite3_result_error()
1162 ** within aggregate functions.
1163 **
1164 ** Later: It is now also extended to register the aggregate function
1165 ** "legacy_count()" with the supplied database handle. This is used
1166 ** to test the deprecated sqlite3_aggregate_count() API.
1167 */
1168 static int test_create_aggregate(
1169   void *NotUsed,
1170   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1171   int argc,              /* Number of arguments */
1172   char **argv            /* Text of each argument */
1173 ){
1174   sqlite3 *db;
1175   int rc;
1176   if( argc!=2 ){
1177     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1178        " FILENAME\"", 0);
1179     return TCL_ERROR;
1180   }
1181   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
1182   rc = sqlite3_create_function(db, "x_count", 0, SQLITE_UTF8, 0, 0,
1183       t1CountStep,t1CountFinalize);
1184   if( rc==SQLITE_OK ){
1185     rc = sqlite3_create_function(db, "x_count", 1, SQLITE_UTF8, 0, 0,
1186         t1CountStep,t1CountFinalize);
1187   }
1188 #ifndef SQLITE_OMIT_DEPRECATED
1189   if( rc==SQLITE_OK ){
1190     rc = sqlite3_create_function(db, "legacy_count", 0, SQLITE_ANY, 0, 0,
1191         legacyCountStep, legacyCountFinalize
1192     );
1193   }
1194 #endif
1195   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
1196   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
1197   return TCL_OK;
1198 }
1199 
1200 
1201 /*
1202 ** Usage:  printf TEXT
1203 **
1204 ** Send output to printf.  Use this rather than puts to merge the output
1205 ** in the correct sequence with debugging printfs inserted into C code.
1206 ** Puts uses a separate buffer and debugging statements will be out of
1207 ** sequence if it is used.
1208 */
1209 static int test_printf(
1210   void *NotUsed,
1211   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1212   int argc,              /* Number of arguments */
1213   char **argv            /* Text of each argument */
1214 ){
1215   if( argc!=2 ){
1216     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1217        " TEXT\"", 0);
1218     return TCL_ERROR;
1219   }
1220   printf("%s\n", argv[1]);
1221   return TCL_OK;
1222 }
1223 
1224 
1225 
1226 /*
1227 ** Usage:  sqlite3_mprintf_int FORMAT INTEGER INTEGER INTEGER
1228 **
1229 ** Call mprintf with three integer arguments
1230 */
1231 static int sqlite3_mprintf_int(
1232   void *NotUsed,
1233   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1234   int argc,              /* Number of arguments */
1235   char **argv            /* Text of each argument */
1236 ){
1237   int a[3], i;
1238   char *z;
1239   if( argc!=5 ){
1240     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1241        " FORMAT INT INT INT\"", 0);
1242     return TCL_ERROR;
1243   }
1244   for(i=2; i<5; i++){
1245     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1246   }
1247   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1248   Tcl_AppendResult(interp, z, 0);
1249   sqlite3_free(z);
1250   return TCL_OK;
1251 }
1252 
1253 /*
1254 ** Usage:  sqlite3_mprintf_int64 FORMAT INTEGER INTEGER INTEGER
1255 **
1256 ** Call mprintf with three 64-bit integer arguments
1257 */
1258 static int sqlite3_mprintf_int64(
1259   void *NotUsed,
1260   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1261   int argc,              /* Number of arguments */
1262   char **argv            /* Text of each argument */
1263 ){
1264   int i;
1265   sqlite_int64 a[3];
1266   char *z;
1267   if( argc!=5 ){
1268     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1269        " FORMAT INT INT INT\"", 0);
1270     return TCL_ERROR;
1271   }
1272   for(i=2; i<5; i++){
1273     if( sqlite3Atoi64(argv[i], &a[i-2], 1000000, SQLITE_UTF8) ){
1274       Tcl_AppendResult(interp, "argument is not a valid 64-bit integer", 0);
1275       return TCL_ERROR;
1276     }
1277   }
1278   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1279   Tcl_AppendResult(interp, z, 0);
1280   sqlite3_free(z);
1281   return TCL_OK;
1282 }
1283 
1284 /*
1285 ** Usage:  sqlite3_mprintf_long FORMAT INTEGER INTEGER INTEGER
1286 **
1287 ** Call mprintf with three long integer arguments.   This might be the
1288 ** same as sqlite3_mprintf_int or sqlite3_mprintf_int64, depending on
1289 ** platform.
1290 */
1291 static int sqlite3_mprintf_long(
1292   void *NotUsed,
1293   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1294   int argc,              /* Number of arguments */
1295   char **argv            /* Text of each argument */
1296 ){
1297   int i;
1298   long int a[3];
1299   int b[3];
1300   char *z;
1301   if( argc!=5 ){
1302     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1303        " FORMAT INT INT INT\"", 0);
1304     return TCL_ERROR;
1305   }
1306   for(i=2; i<5; i++){
1307     if( Tcl_GetInt(interp, argv[i], &b[i-2]) ) return TCL_ERROR;
1308     a[i-2] = (long int)b[i-2];
1309     a[i-2] &= (((u64)1)<<(sizeof(int)*8))-1;
1310   }
1311   z = sqlite3_mprintf(argv[1], a[0], a[1], a[2]);
1312   Tcl_AppendResult(interp, z, 0);
1313   sqlite3_free(z);
1314   return TCL_OK;
1315 }
1316 
1317 /*
1318 ** Usage:  sqlite3_mprintf_str FORMAT INTEGER INTEGER STRING
1319 **
1320 ** Call mprintf with two integer arguments and one string argument
1321 */
1322 static int sqlite3_mprintf_str(
1323   void *NotUsed,
1324   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1325   int argc,              /* Number of arguments */
1326   char **argv            /* Text of each argument */
1327 ){
1328   int a[3], i;
1329   char *z;
1330   if( argc<4 || argc>5 ){
1331     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1332        " FORMAT INT INT ?STRING?\"", 0);
1333     return TCL_ERROR;
1334   }
1335   for(i=2; i<4; i++){
1336     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1337   }
1338   z = sqlite3_mprintf(argv[1], a[0], a[1], argc>4 ? argv[4] : NULL);
1339   Tcl_AppendResult(interp, z, 0);
1340   sqlite3_free(z);
1341   return TCL_OK;
1342 }
1343 
1344 /*
1345 ** Usage:  sqlite3_snprintf_str INTEGER FORMAT INTEGER INTEGER STRING
1346 **
1347 ** Call mprintf with two integer arguments and one string argument
1348 */
1349 static int sqlite3_snprintf_str(
1350   void *NotUsed,
1351   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1352   int argc,              /* Number of arguments */
1353   char **argv            /* Text of each argument */
1354 ){
1355   int a[3], i;
1356   int n;
1357   char *z;
1358   if( argc<5 || argc>6 ){
1359     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1360        " INT FORMAT INT INT ?STRING?\"", 0);
1361     return TCL_ERROR;
1362   }
1363   if( Tcl_GetInt(interp, argv[1], &n) ) return TCL_ERROR;
1364   if( n<0 ){
1365     Tcl_AppendResult(interp, "N must be non-negative", 0);
1366     return TCL_ERROR;
1367   }
1368   for(i=3; i<5; i++){
1369     if( Tcl_GetInt(interp, argv[i], &a[i-3]) ) return TCL_ERROR;
1370   }
1371   z = sqlite3_malloc( n+1 );
1372   sqlite3_snprintf(n, z, argv[2], a[0], a[1], argc>4 ? argv[5] : NULL);
1373   Tcl_AppendResult(interp, z, 0);
1374   sqlite3_free(z);
1375   return TCL_OK;
1376 }
1377 
1378 /*
1379 ** Usage:  sqlite3_mprintf_double FORMAT INTEGER INTEGER DOUBLE
1380 **
1381 ** Call mprintf with two integer arguments and one double argument
1382 */
1383 static int sqlite3_mprintf_double(
1384   void *NotUsed,
1385   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1386   int argc,              /* Number of arguments */
1387   char **argv            /* Text of each argument */
1388 ){
1389   int a[3], i;
1390   double r;
1391   char *z;
1392   if( argc!=5 ){
1393     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1394        " FORMAT INT INT DOUBLE\"", 0);
1395     return TCL_ERROR;
1396   }
1397   for(i=2; i<4; i++){
1398     if( Tcl_GetInt(interp, argv[i], &a[i-2]) ) return TCL_ERROR;
1399   }
1400   if( Tcl_GetDouble(interp, argv[4], &r) ) return TCL_ERROR;
1401   z = sqlite3_mprintf(argv[1], a[0], a[1], r);
1402   Tcl_AppendResult(interp, z, 0);
1403   sqlite3_free(z);
1404   return TCL_OK;
1405 }
1406 
1407 /*
1408 ** Usage:  sqlite3_mprintf_scaled FORMAT DOUBLE DOUBLE
1409 **
1410 ** Call mprintf with a single double argument which is the product of the
1411 ** two arguments given above.  This is used to generate overflow and underflow
1412 ** doubles to test that they are converted properly.
1413 */
1414 static int sqlite3_mprintf_scaled(
1415   void *NotUsed,
1416   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1417   int argc,              /* Number of arguments */
1418   char **argv            /* Text of each argument */
1419 ){
1420   int i;
1421   double r[2];
1422   char *z;
1423   if( argc!=4 ){
1424     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1425        " FORMAT DOUBLE DOUBLE\"", 0);
1426     return TCL_ERROR;
1427   }
1428   for(i=2; i<4; i++){
1429     if( Tcl_GetDouble(interp, argv[i], &r[i-2]) ) return TCL_ERROR;
1430   }
1431   z = sqlite3_mprintf(argv[1], r[0]*r[1]);
1432   Tcl_AppendResult(interp, z, 0);
1433   sqlite3_free(z);
1434   return TCL_OK;
1435 }
1436 
1437 /*
1438 ** Usage:  sqlite3_mprintf_stronly FORMAT STRING
1439 **
1440 ** Call mprintf with a single double argument which is the product of the
1441 ** two arguments given above.  This is used to generate overflow and underflow
1442 ** doubles to test that they are converted properly.
1443 */
1444 static int sqlite3_mprintf_stronly(
1445   void *NotUsed,
1446   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1447   int argc,              /* Number of arguments */
1448   char **argv            /* Text of each argument */
1449 ){
1450   char *z;
1451   if( argc!=3 ){
1452     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1453        " FORMAT STRING\"", 0);
1454     return TCL_ERROR;
1455   }
1456   z = sqlite3_mprintf(argv[1], argv[2]);
1457   Tcl_AppendResult(interp, z, 0);
1458   sqlite3_free(z);
1459   return TCL_OK;
1460 }
1461 
1462 /*
1463 ** Usage:  sqlite3_mprintf_hexdouble FORMAT HEX
1464 **
1465 ** Call mprintf with a single double argument which is derived from the
1466 ** hexadecimal encoding of an IEEE double.
1467 */
1468 static int sqlite3_mprintf_hexdouble(
1469   void *NotUsed,
1470   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1471   int argc,              /* Number of arguments */
1472   char **argv            /* Text of each argument */
1473 ){
1474   char *z;
1475   double r;
1476   unsigned int x1, x2;
1477   sqlite_uint64 d;
1478   if( argc!=3 ){
1479     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
1480        " FORMAT STRING\"", 0);
1481     return TCL_ERROR;
1482   }
1483   if( sscanf(argv[2], "%08x%08x", &x2, &x1)!=2 ){
1484     Tcl_AppendResult(interp, "2nd argument should be 16-characters of hex", 0);
1485     return TCL_ERROR;
1486   }
1487   d = x2;
1488   d = (d<<32) + x1;
1489   memcpy(&r, &d, sizeof(r));
1490   z = sqlite3_mprintf(argv[1], r);
1491   Tcl_AppendResult(interp, z, 0);
1492   sqlite3_free(z);
1493   return TCL_OK;
1494 }
1495 
1496 /*
1497 ** Usage: sqlite3_enable_shared_cache ?BOOLEAN?
1498 **
1499 */
1500 #if !defined(SQLITE_OMIT_SHARED_CACHE)
1501 static int test_enable_shared(
1502   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1503   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1504   int objc,              /* Number of arguments */
1505   Tcl_Obj *CONST objv[]  /* Command arguments */
1506 ){
1507   int rc;
1508   int enable;
1509   int ret = 0;
1510 
1511   if( objc!=2 && objc!=1 ){
1512     Tcl_WrongNumArgs(interp, 1, objv, "?BOOLEAN?");
1513     return TCL_ERROR;
1514   }
1515   ret = sqlite3GlobalConfig.sharedCacheEnabled;
1516 
1517   if( objc==2 ){
1518     if( Tcl_GetBooleanFromObj(interp, objv[1], &enable) ){
1519       return TCL_ERROR;
1520     }
1521     rc = sqlite3_enable_shared_cache(enable);
1522     if( rc!=SQLITE_OK ){
1523       Tcl_SetResult(interp, (char *)sqlite3ErrStr(rc), TCL_STATIC);
1524       return TCL_ERROR;
1525     }
1526   }
1527   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(ret));
1528   return TCL_OK;
1529 }
1530 #endif
1531 
1532 
1533 
1534 /*
1535 ** Usage: sqlite3_extended_result_codes   DB    BOOLEAN
1536 **
1537 */
1538 static int test_extended_result_codes(
1539   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1540   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1541   int objc,              /* Number of arguments */
1542   Tcl_Obj *CONST objv[]  /* Command arguments */
1543 ){
1544   int enable;
1545   sqlite3 *db;
1546 
1547   if( objc!=3 ){
1548     Tcl_WrongNumArgs(interp, 1, objv, "DB BOOLEAN");
1549     return TCL_ERROR;
1550   }
1551   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1552   if( Tcl_GetBooleanFromObj(interp, objv[2], &enable) ) return TCL_ERROR;
1553   sqlite3_extended_result_codes(db, enable);
1554   return TCL_OK;
1555 }
1556 
1557 /*
1558 ** Usage: sqlite3_libversion_number
1559 **
1560 */
1561 static int test_libversion_number(
1562   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1563   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1564   int objc,              /* Number of arguments */
1565   Tcl_Obj *CONST objv[]  /* Command arguments */
1566 ){
1567   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_libversion_number()));
1568   return TCL_OK;
1569 }
1570 
1571 /*
1572 ** Usage: sqlite3_table_column_metadata DB dbname tblname colname
1573 **
1574 */
1575 static int test_table_column_metadata(
1576   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
1577   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1578   int objc,              /* Number of arguments */
1579   Tcl_Obj *CONST objv[]  /* Command arguments */
1580 ){
1581   sqlite3 *db;
1582   const char *zDb;
1583   const char *zTbl;
1584   const char *zCol;
1585   int rc;
1586   Tcl_Obj *pRet;
1587 
1588   const char *zDatatype;
1589   const char *zCollseq;
1590   int notnull;
1591   int primarykey;
1592   int autoincrement;
1593 
1594   if( objc!=5 && objc!=4 ){
1595     Tcl_WrongNumArgs(interp, 1, objv, "DB dbname tblname colname");
1596     return TCL_ERROR;
1597   }
1598   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1599   zDb = Tcl_GetString(objv[2]);
1600   zTbl = Tcl_GetString(objv[3]);
1601   zCol = objc==5 ? Tcl_GetString(objv[4]) : 0;
1602 
1603   if( strlen(zDb)==0 ) zDb = 0;
1604 
1605   rc = sqlite3_table_column_metadata(db, zDb, zTbl, zCol,
1606       &zDatatype, &zCollseq, &notnull, &primarykey, &autoincrement);
1607 
1608   if( rc!=SQLITE_OK ){
1609     Tcl_AppendResult(interp, sqlite3_errmsg(db), 0);
1610     return TCL_ERROR;
1611   }
1612 
1613   pRet = Tcl_NewObj();
1614   Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zDatatype, -1));
1615   Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zCollseq, -1));
1616   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(notnull));
1617   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(primarykey));
1618   Tcl_ListObjAppendElement(0, pRet, Tcl_NewIntObj(autoincrement));
1619   Tcl_SetObjResult(interp, pRet);
1620 
1621   return TCL_OK;
1622 }
1623 
1624 #ifndef SQLITE_OMIT_INCRBLOB
1625 
1626 static int blobHandleFromObj(
1627   Tcl_Interp *interp,
1628   Tcl_Obj *pObj,
1629   sqlite3_blob **ppBlob
1630 ){
1631   char *z;
1632   int n;
1633 
1634   z = Tcl_GetStringFromObj(pObj, &n);
1635   if( n==0 ){
1636     *ppBlob = 0;
1637   }else{
1638     int notUsed;
1639     Tcl_Channel channel;
1640     ClientData instanceData;
1641 
1642     channel = Tcl_GetChannel(interp, z, &notUsed);
1643     if( !channel ) return TCL_ERROR;
1644 
1645     Tcl_Flush(channel);
1646     Tcl_Seek(channel, 0, SEEK_SET);
1647 
1648     instanceData = Tcl_GetChannelInstanceData(channel);
1649     *ppBlob = *((sqlite3_blob **)instanceData);
1650   }
1651 
1652   return TCL_OK;
1653 }
1654 
1655 static int test_blob_reopen(
1656   ClientData clientData, /* Not used */
1657   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1658   int objc,              /* Number of arguments */
1659   Tcl_Obj *CONST objv[]  /* Command arguments */
1660 ){
1661   Tcl_WideInt iRowid;
1662   sqlite3_blob *pBlob;
1663   int rc;
1664 
1665   if( objc!=3 ){
1666     Tcl_WrongNumArgs(interp, 1, objv, "CHANNEL ROWID");
1667     return TCL_ERROR;
1668   }
1669 
1670   if( blobHandleFromObj(interp, objv[1], &pBlob) ) return TCL_ERROR;
1671   if( Tcl_GetWideIntFromObj(interp, objv[2], &iRowid) ) return TCL_ERROR;
1672 
1673   rc = sqlite3_blob_reopen(pBlob, iRowid);
1674   if( rc!=SQLITE_OK ){
1675     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_VOLATILE);
1676   }
1677 
1678   return (rc==SQLITE_OK ? TCL_OK : TCL_ERROR);
1679 }
1680 
1681 #endif
1682 
1683 /*
1684 ** Usage: sqlite3_create_collation_v2 DB-HANDLE NAME CMP-PROC DEL-PROC
1685 **
1686 **   This Tcl proc is used for testing the experimental
1687 **   sqlite3_create_collation_v2() interface.
1688 */
1689 struct TestCollationX {
1690   Tcl_Interp *interp;
1691   Tcl_Obj *pCmp;
1692   Tcl_Obj *pDel;
1693 };
1694 typedef struct TestCollationX TestCollationX;
1695 static void testCreateCollationDel(void *pCtx){
1696   TestCollationX *p = (TestCollationX *)pCtx;
1697 
1698   int rc = Tcl_EvalObjEx(p->interp, p->pDel, TCL_EVAL_DIRECT|TCL_EVAL_GLOBAL);
1699   if( rc!=TCL_OK ){
1700     Tcl_BackgroundError(p->interp);
1701   }
1702 
1703   Tcl_DecrRefCount(p->pCmp);
1704   Tcl_DecrRefCount(p->pDel);
1705   sqlite3_free((void *)p);
1706 }
1707 static int testCreateCollationCmp(
1708   void *pCtx,
1709   int nLeft,
1710   const void *zLeft,
1711   int nRight,
1712   const void *zRight
1713 ){
1714   TestCollationX *p = (TestCollationX *)pCtx;
1715   Tcl_Obj *pScript = Tcl_DuplicateObj(p->pCmp);
1716   int iRes = 0;
1717 
1718   Tcl_IncrRefCount(pScript);
1719   Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj((char *)zLeft, nLeft));
1720   Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj((char *)zRight,nRight));
1721 
1722   if( TCL_OK!=Tcl_EvalObjEx(p->interp, pScript, TCL_EVAL_DIRECT|TCL_EVAL_GLOBAL)
1723    || TCL_OK!=Tcl_GetIntFromObj(p->interp, Tcl_GetObjResult(p->interp), &iRes)
1724   ){
1725     Tcl_BackgroundError(p->interp);
1726   }
1727   Tcl_DecrRefCount(pScript);
1728 
1729   return iRes;
1730 }
1731 static int test_create_collation_v2(
1732   ClientData clientData, /* Not used */
1733   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1734   int objc,              /* Number of arguments */
1735   Tcl_Obj *CONST objv[]  /* Command arguments */
1736 ){
1737   TestCollationX *p;
1738   sqlite3 *db;
1739   int rc;
1740 
1741   if( objc!=5 ){
1742     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE NAME CMP-PROC DEL-PROC");
1743     return TCL_ERROR;
1744   }
1745   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1746 
1747   p = (TestCollationX *)sqlite3_malloc(sizeof(TestCollationX));
1748   p->pCmp = objv[3];
1749   p->pDel = objv[4];
1750   p->interp = interp;
1751   Tcl_IncrRefCount(p->pCmp);
1752   Tcl_IncrRefCount(p->pDel);
1753 
1754   rc = sqlite3_create_collation_v2(db, Tcl_GetString(objv[2]), 16,
1755       (void *)p, testCreateCollationCmp, testCreateCollationDel
1756   );
1757   if( rc!=SQLITE_MISUSE ){
1758     Tcl_AppendResult(interp, "sqlite3_create_collate_v2() failed to detect "
1759       "an invalid encoding", (char*)0);
1760     return TCL_ERROR;
1761   }
1762   rc = sqlite3_create_collation_v2(db, Tcl_GetString(objv[2]), SQLITE_UTF8,
1763       (void *)p, testCreateCollationCmp, testCreateCollationDel
1764   );
1765   return TCL_OK;
1766 }
1767 
1768 /*
1769 ** USAGE: sqlite3_create_function_v2 DB NAME NARG ENC ?SWITCHES?
1770 **
1771 ** Available switches are:
1772 **
1773 **   -func    SCRIPT
1774 **   -step    SCRIPT
1775 **   -final   SCRIPT
1776 **   -destroy SCRIPT
1777 */
1778 typedef struct CreateFunctionV2 CreateFunctionV2;
1779 struct CreateFunctionV2 {
1780   Tcl_Interp *interp;
1781   Tcl_Obj *pFunc;                 /* Script for function invocation */
1782   Tcl_Obj *pStep;                 /* Script for agg. step invocation */
1783   Tcl_Obj *pFinal;                /* Script for agg. finalization invocation */
1784   Tcl_Obj *pDestroy;              /* Destructor script */
1785 };
1786 static void cf2Func(sqlite3_context *ctx, int nArg, sqlite3_value **aArg){
1787 }
1788 static void cf2Step(sqlite3_context *ctx, int nArg, sqlite3_value **aArg){
1789 }
1790 static void cf2Final(sqlite3_context *ctx){
1791 }
1792 static void cf2Destroy(void *pUser){
1793   CreateFunctionV2 *p = (CreateFunctionV2 *)pUser;
1794 
1795   if( p->interp && p->pDestroy ){
1796     int rc = Tcl_EvalObjEx(p->interp, p->pDestroy, 0);
1797     if( rc!=TCL_OK ) Tcl_BackgroundError(p->interp);
1798   }
1799 
1800   if( p->pFunc ) Tcl_DecrRefCount(p->pFunc);
1801   if( p->pStep ) Tcl_DecrRefCount(p->pStep);
1802   if( p->pFinal ) Tcl_DecrRefCount(p->pFinal);
1803   if( p->pDestroy ) Tcl_DecrRefCount(p->pDestroy);
1804   sqlite3_free(p);
1805 }
1806 static int test_create_function_v2(
1807   ClientData clientData,          /* Not used */
1808   Tcl_Interp *interp,             /* The invoking TCL interpreter */
1809   int objc,                       /* Number of arguments */
1810   Tcl_Obj *CONST objv[]           /* Command arguments */
1811 ){
1812   sqlite3 *db;
1813   const char *zFunc;
1814   int nArg;
1815   int enc;
1816   CreateFunctionV2 *p;
1817   int i;
1818   int rc;
1819 
1820   struct EncTable {
1821     const char *zEnc;
1822     int enc;
1823   } aEnc[] = {
1824     {"utf8",    SQLITE_UTF8 },
1825     {"utf16",   SQLITE_UTF16 },
1826     {"utf16le", SQLITE_UTF16LE },
1827     {"utf16be", SQLITE_UTF16BE },
1828     {"any",     SQLITE_ANY },
1829     {"0", 0 }
1830   };
1831 
1832   if( objc<5 || (objc%2)==0 ){
1833     Tcl_WrongNumArgs(interp, 1, objv, "DB NAME NARG ENC SWITCHES...");
1834     return TCL_ERROR;
1835   }
1836 
1837   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
1838   zFunc = Tcl_GetString(objv[2]);
1839   if( Tcl_GetIntFromObj(interp, objv[3], &nArg) ) return TCL_ERROR;
1840   if( Tcl_GetIndexFromObjStruct(interp, objv[4], aEnc, sizeof(aEnc[0]),
1841           "encoding", 0, &enc)
1842   ){
1843     return TCL_ERROR;
1844   }
1845   enc = aEnc[enc].enc;
1846 
1847   p = sqlite3_malloc(sizeof(CreateFunctionV2));
1848   assert( p );
1849   memset(p, 0, sizeof(CreateFunctionV2));
1850   p->interp = interp;
1851 
1852   for(i=5; i<objc; i+=2){
1853     int iSwitch;
1854     const char *azSwitch[] = {"-func", "-step", "-final", "-destroy", 0};
1855     if( Tcl_GetIndexFromObj(interp, objv[i], azSwitch, "switch", 0, &iSwitch) ){
1856       sqlite3_free(p);
1857       return TCL_ERROR;
1858     }
1859 
1860     switch( iSwitch ){
1861       case 0: p->pFunc = objv[i+1];      break;
1862       case 1: p->pStep = objv[i+1];      break;
1863       case 2: p->pFinal = objv[i+1];     break;
1864       case 3: p->pDestroy = objv[i+1];   break;
1865     }
1866   }
1867   if( p->pFunc ) p->pFunc = Tcl_DuplicateObj(p->pFunc);
1868   if( p->pStep ) p->pStep = Tcl_DuplicateObj(p->pStep);
1869   if( p->pFinal ) p->pFinal = Tcl_DuplicateObj(p->pFinal);
1870   if( p->pDestroy ) p->pDestroy = Tcl_DuplicateObj(p->pDestroy);
1871 
1872   if( p->pFunc ) Tcl_IncrRefCount(p->pFunc);
1873   if( p->pStep ) Tcl_IncrRefCount(p->pStep);
1874   if( p->pFinal ) Tcl_IncrRefCount(p->pFinal);
1875   if( p->pDestroy ) Tcl_IncrRefCount(p->pDestroy);
1876 
1877   rc = sqlite3_create_function_v2(db, zFunc, nArg, enc, (void *)p,
1878       (p->pFunc ? cf2Func : 0),
1879       (p->pStep ? cf2Step : 0),
1880       (p->pFinal ? cf2Final : 0),
1881       cf2Destroy
1882   );
1883   if( rc!=SQLITE_OK ){
1884     Tcl_ResetResult(interp);
1885     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
1886     return TCL_ERROR;
1887   }
1888   return TCL_OK;
1889 }
1890 
1891 /*
1892 ** Usage: sqlite3_load_extension DB-HANDLE FILE ?PROC?
1893 */
1894 static int test_load_extension(
1895   ClientData clientData, /* Not used */
1896   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1897   int objc,              /* Number of arguments */
1898   Tcl_Obj *CONST objv[]  /* Command arguments */
1899 ){
1900   Tcl_CmdInfo cmdInfo;
1901   sqlite3 *db;
1902   int rc;
1903   char *zDb;
1904   char *zFile;
1905   char *zProc = 0;
1906   char *zErr = 0;
1907 
1908   if( objc!=4 && objc!=3 ){
1909     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE FILE ?PROC?");
1910     return TCL_ERROR;
1911   }
1912   zDb = Tcl_GetString(objv[1]);
1913   zFile = Tcl_GetString(objv[2]);
1914   if( objc==4 ){
1915     zProc = Tcl_GetString(objv[3]);
1916   }
1917 
1918   /* Extract the C database handle from the Tcl command name */
1919   if( !Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
1920     Tcl_AppendResult(interp, "command not found: ", zDb, (char*)0);
1921     return TCL_ERROR;
1922   }
1923   db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
1924   assert(db);
1925 
1926   /* Call the underlying C function. If an error occurs, set rc to
1927   ** TCL_ERROR and load any error string into the interpreter. If no
1928   ** error occurs, set rc to TCL_OK.
1929   */
1930 #ifdef SQLITE_OMIT_LOAD_EXTENSION
1931   rc = SQLITE_ERROR;
1932   zErr = sqlite3_mprintf("this build omits sqlite3_load_extension()");
1933 #else
1934   rc = sqlite3_load_extension(db, zFile, zProc, &zErr);
1935 #endif
1936   if( rc!=SQLITE_OK ){
1937     Tcl_SetResult(interp, zErr ? zErr : "", TCL_VOLATILE);
1938     rc = TCL_ERROR;
1939   }else{
1940     rc = TCL_OK;
1941   }
1942   sqlite3_free(zErr);
1943 
1944   return rc;
1945 }
1946 
1947 /*
1948 ** Usage: sqlite3_enable_load_extension DB-HANDLE ONOFF
1949 */
1950 static int test_enable_load(
1951   ClientData clientData, /* Not used */
1952   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1953   int objc,              /* Number of arguments */
1954   Tcl_Obj *CONST objv[]  /* Command arguments */
1955 ){
1956   Tcl_CmdInfo cmdInfo;
1957   sqlite3 *db;
1958   char *zDb;
1959   int onoff;
1960 
1961   if( objc!=3 ){
1962     Tcl_WrongNumArgs(interp, 1, objv, "DB-HANDLE ONOFF");
1963     return TCL_ERROR;
1964   }
1965   zDb = Tcl_GetString(objv[1]);
1966 
1967   /* Extract the C database handle from the Tcl command name */
1968   if( !Tcl_GetCommandInfo(interp, zDb, &cmdInfo) ){
1969     Tcl_AppendResult(interp, "command not found: ", zDb, (char*)0);
1970     return TCL_ERROR;
1971   }
1972   db = ((struct SqliteDb*)cmdInfo.objClientData)->db;
1973   assert(db);
1974 
1975   /* Get the onoff parameter */
1976   if( Tcl_GetBooleanFromObj(interp, objv[2], &onoff) ){
1977     return TCL_ERROR;
1978   }
1979 
1980 #ifdef SQLITE_OMIT_LOAD_EXTENSION
1981   Tcl_AppendResult(interp, "this build omits sqlite3_load_extension()");
1982   return TCL_ERROR;
1983 #else
1984   sqlite3_enable_load_extension(db, onoff);
1985   return TCL_OK;
1986 #endif
1987 }
1988 
1989 /*
1990 ** Usage:  sqlite_abort
1991 **
1992 ** Shutdown the process immediately.  This is not a clean shutdown.
1993 ** This command is used to test the recoverability of a database in
1994 ** the event of a program crash.
1995 */
1996 static int sqlite_abort(
1997   void *NotUsed,
1998   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
1999   int argc,              /* Number of arguments */
2000   char **argv            /* Text of each argument */
2001 ){
2002 #if defined(_MSC_VER)
2003   /* We do this, otherwise the test will halt with a popup message
2004    * that we have to click away before the test will continue.
2005    */
2006   _set_abort_behavior( 0, _CALL_REPORTFAULT );
2007 #endif
2008   exit(255);
2009   assert( interp==0 );   /* This will always fail */
2010   return TCL_OK;
2011 }
2012 
2013 /*
2014 ** The following routine is a user-defined SQL function whose purpose
2015 ** is to test the sqlite_set_result() API.
2016 */
2017 static void testFunc(sqlite3_context *context, int argc, sqlite3_value **argv){
2018   while( argc>=2 ){
2019     const char *zArg0 = (char*)sqlite3_value_text(argv[0]);
2020     if( zArg0 ){
2021       if( 0==sqlite3StrICmp(zArg0, "int") ){
2022         sqlite3_result_int(context, sqlite3_value_int(argv[1]));
2023       }else if( sqlite3StrICmp(zArg0,"int64")==0 ){
2024         sqlite3_result_int64(context, sqlite3_value_int64(argv[1]));
2025       }else if( sqlite3StrICmp(zArg0,"string")==0 ){
2026         sqlite3_result_text(context, (char*)sqlite3_value_text(argv[1]), -1,
2027             SQLITE_TRANSIENT);
2028       }else if( sqlite3StrICmp(zArg0,"double")==0 ){
2029         sqlite3_result_double(context, sqlite3_value_double(argv[1]));
2030       }else if( sqlite3StrICmp(zArg0,"null")==0 ){
2031         sqlite3_result_null(context);
2032       }else if( sqlite3StrICmp(zArg0,"value")==0 ){
2033         sqlite3_result_value(context, argv[sqlite3_value_int(argv[1])]);
2034       }else{
2035         goto error_out;
2036       }
2037     }else{
2038       goto error_out;
2039     }
2040     argc -= 2;
2041     argv += 2;
2042   }
2043   return;
2044 
2045 error_out:
2046   sqlite3_result_error(context,"first argument should be one of: "
2047       "int int64 string double null value", -1);
2048 }
2049 
2050 /*
2051 ** Usage:   sqlite_register_test_function  DB  NAME
2052 **
2053 ** Register the test SQL function on the database DB under the name NAME.
2054 */
2055 static int test_register_func(
2056   void *NotUsed,
2057   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2058   int argc,              /* Number of arguments */
2059   char **argv            /* Text of each argument */
2060 ){
2061   sqlite3 *db;
2062   int rc;
2063   if( argc!=3 ){
2064     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
2065        " DB FUNCTION-NAME", 0);
2066     return TCL_ERROR;
2067   }
2068   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
2069   rc = sqlite3_create_function(db, argv[2], -1, SQLITE_UTF8, 0,
2070       testFunc, 0, 0);
2071   if( rc!=0 ){
2072     Tcl_AppendResult(interp, sqlite3ErrStr(rc), 0);
2073     return TCL_ERROR;
2074   }
2075   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2076   return TCL_OK;
2077 }
2078 
2079 /*
2080 ** Usage:  sqlite3_finalize  STMT
2081 **
2082 ** Finalize a statement handle.
2083 */
2084 static int test_finalize(
2085   void * clientData,
2086   Tcl_Interp *interp,
2087   int objc,
2088   Tcl_Obj *CONST objv[]
2089 ){
2090   sqlite3_stmt *pStmt;
2091   int rc;
2092   sqlite3 *db = 0;
2093 
2094   if( objc!=2 ){
2095     Tcl_AppendResult(interp, "wrong # args: should be \"",
2096         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2097     return TCL_ERROR;
2098   }
2099 
2100   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2101 
2102   if( pStmt ){
2103     db = StmtToDb(pStmt);
2104   }
2105   rc = sqlite3_finalize(pStmt);
2106   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
2107   if( db && sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2108   return TCL_OK;
2109 }
2110 
2111 /*
2112 ** Usage:  sqlite3_stmt_status  STMT  CODE  RESETFLAG
2113 **
2114 ** Get the value of a status counter from a statement.
2115 */
2116 static int test_stmt_status(
2117   void * clientData,
2118   Tcl_Interp *interp,
2119   int objc,
2120   Tcl_Obj *CONST objv[]
2121 ){
2122   int iValue;
2123   int i, op = 0, resetFlag;
2124   const char *zOpName;
2125   sqlite3_stmt *pStmt;
2126 
2127   static const struct {
2128     const char *zName;
2129     int op;
2130   } aOp[] = {
2131     { "SQLITE_STMTSTATUS_FULLSCAN_STEP",   SQLITE_STMTSTATUS_FULLSCAN_STEP   },
2132     { "SQLITE_STMTSTATUS_SORT",            SQLITE_STMTSTATUS_SORT            },
2133     { "SQLITE_STMTSTATUS_AUTOINDEX",       SQLITE_STMTSTATUS_AUTOINDEX       },
2134     { "SQLITE_STMTSTATUS_VM_STEP",         SQLITE_STMTSTATUS_VM_STEP         },
2135   };
2136   if( objc!=4 ){
2137     Tcl_WrongNumArgs(interp, 1, objv, "STMT PARAMETER RESETFLAG");
2138     return TCL_ERROR;
2139   }
2140   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2141   zOpName = Tcl_GetString(objv[2]);
2142   for(i=0; i<ArraySize(aOp); i++){
2143     if( strcmp(aOp[i].zName, zOpName)==0 ){
2144       op = aOp[i].op;
2145       break;
2146     }
2147   }
2148   if( i>=ArraySize(aOp) ){
2149     if( Tcl_GetIntFromObj(interp, objv[2], &op) ) return TCL_ERROR;
2150   }
2151   if( Tcl_GetBooleanFromObj(interp, objv[3], &resetFlag) ) return TCL_ERROR;
2152   iValue = sqlite3_stmt_status(pStmt, op, resetFlag);
2153   Tcl_SetObjResult(interp, Tcl_NewIntObj(iValue));
2154   return TCL_OK;
2155 }
2156 
2157 #ifdef SQLITE_ENABLE_STMT_SCANSTATUS
2158 /*
2159 ** Usage:  sqlite3_stmt_scanstatus STMT IDX
2160 */
2161 static int test_stmt_scanstatus(
2162   void * clientData,
2163   Tcl_Interp *interp,
2164   int objc,
2165   Tcl_Obj *CONST objv[]
2166 ){
2167   sqlite3_stmt *pStmt;            /* First argument */
2168   int idx;                        /* Second argument */
2169 
2170   const char *zName;
2171   const char *zExplain;
2172   sqlite3_int64 nLoop;
2173   sqlite3_int64 nVisit;
2174   double rEst;
2175   int res;
2176 
2177   if( objc!=3 ){
2178     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX");
2179     return TCL_ERROR;
2180   }
2181   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2182   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2183 
2184   res = sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NLOOP, (void*)&nLoop);
2185   if( res==0 ){
2186     Tcl_Obj *pRet = Tcl_NewObj();
2187     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nLoop", -1));
2188     Tcl_ListObjAppendElement(0, pRet, Tcl_NewWideIntObj(nLoop));
2189     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NVISIT, (void*)&nVisit);
2190     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nVisit", -1));
2191     Tcl_ListObjAppendElement(0, pRet, Tcl_NewWideIntObj(nVisit));
2192     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_EST, (void*)&rEst);
2193     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("nEst", -1));
2194     Tcl_ListObjAppendElement(0, pRet, Tcl_NewDoubleObj(rEst));
2195     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_NAME, (void*)&zName);
2196     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("zName", -1));
2197     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zName, -1));
2198     sqlite3_stmt_scanstatus(pStmt, idx, SQLITE_SCANSTAT_EXPLAIN, (void*)&zExplain);
2199     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj("zExplain", -1));
2200     Tcl_ListObjAppendElement(0, pRet, Tcl_NewStringObj(zExplain, -1));
2201     Tcl_SetObjResult(interp, pRet);
2202   }else{
2203     Tcl_ResetResult(interp);
2204   }
2205   return TCL_OK;
2206 }
2207 
2208 /*
2209 ** Usage:  sqlite3_stmt_scanstatus_reset  STMT
2210 */
2211 static int test_stmt_scanstatus_reset(
2212   void * clientData,
2213   Tcl_Interp *interp,
2214   int objc,
2215   Tcl_Obj *CONST objv[]
2216 ){
2217   sqlite3_stmt *pStmt;            /* First argument */
2218   if( objc!=2 ){
2219     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
2220     return TCL_ERROR;
2221   }
2222   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2223   sqlite3_stmt_scanstatus_reset(pStmt);
2224   return TCL_OK;
2225 }
2226 #endif
2227 
2228 /*
2229 ** Usage:  sqlite3_next_stmt  DB  STMT
2230 **
2231 ** Return the next statment in sequence after STMT.
2232 */
2233 static int test_next_stmt(
2234   void * clientData,
2235   Tcl_Interp *interp,
2236   int objc,
2237   Tcl_Obj *CONST objv[]
2238 ){
2239   sqlite3_stmt *pStmt;
2240   sqlite3 *db = 0;
2241   char zBuf[50];
2242 
2243   if( objc!=3 ){
2244     Tcl_AppendResult(interp, "wrong # args: should be \"",
2245         Tcl_GetStringFromObj(objv[0], 0), " DB STMT", 0);
2246     return TCL_ERROR;
2247   }
2248 
2249   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2250   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt) ) return TCL_ERROR;
2251   pStmt = sqlite3_next_stmt(db, pStmt);
2252   if( pStmt ){
2253     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
2254     Tcl_AppendResult(interp, zBuf, 0);
2255   }
2256   return TCL_OK;
2257 }
2258 
2259 /*
2260 ** Usage:  sqlite3_stmt_readonly  STMT
2261 **
2262 ** Return true if STMT is a NULL pointer or a pointer to a statement
2263 ** that is guaranteed to leave the database unmodified.
2264 */
2265 static int test_stmt_readonly(
2266   void * clientData,
2267   Tcl_Interp *interp,
2268   int objc,
2269   Tcl_Obj *CONST objv[]
2270 ){
2271   sqlite3_stmt *pStmt;
2272   int rc;
2273 
2274   if( objc!=2 ){
2275     Tcl_AppendResult(interp, "wrong # args: should be \"",
2276         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2277     return TCL_ERROR;
2278   }
2279 
2280   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2281   rc = sqlite3_stmt_readonly(pStmt);
2282   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc));
2283   return TCL_OK;
2284 }
2285 
2286 /*
2287 ** Usage:  sqlite3_stmt_busy  STMT
2288 **
2289 ** Return true if STMT is a non-NULL pointer to a statement
2290 ** that has been stepped but not to completion.
2291 */
2292 static int test_stmt_busy(
2293   void * clientData,
2294   Tcl_Interp *interp,
2295   int objc,
2296   Tcl_Obj *CONST objv[]
2297 ){
2298   sqlite3_stmt *pStmt;
2299   int rc;
2300 
2301   if( objc!=2 ){
2302     Tcl_AppendResult(interp, "wrong # args: should be \"",
2303         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2304     return TCL_ERROR;
2305   }
2306 
2307   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2308   rc = sqlite3_stmt_busy(pStmt);
2309   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(rc));
2310   return TCL_OK;
2311 }
2312 
2313 /*
2314 ** Usage:  uses_stmt_journal  STMT
2315 **
2316 ** Return true if STMT uses a statement journal.
2317 */
2318 static int uses_stmt_journal(
2319   void * clientData,
2320   Tcl_Interp *interp,
2321   int objc,
2322   Tcl_Obj *CONST objv[]
2323 ){
2324   sqlite3_stmt *pStmt;
2325 
2326   if( objc!=2 ){
2327     Tcl_AppendResult(interp, "wrong # args: should be \"",
2328         Tcl_GetStringFromObj(objv[0], 0), " STMT", 0);
2329     return TCL_ERROR;
2330   }
2331 
2332   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2333   sqlite3_stmt_readonly(pStmt);
2334   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(((Vdbe *)pStmt)->usesStmtJournal));
2335   return TCL_OK;
2336 }
2337 
2338 
2339 /*
2340 ** Usage:  sqlite3_reset  STMT
2341 **
2342 ** Reset a statement handle.
2343 */
2344 static int test_reset(
2345   void * clientData,
2346   Tcl_Interp *interp,
2347   int objc,
2348   Tcl_Obj *CONST objv[]
2349 ){
2350   sqlite3_stmt *pStmt;
2351   int rc;
2352 
2353   if( objc!=2 ){
2354     Tcl_AppendResult(interp, "wrong # args: should be \"",
2355         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2356     return TCL_ERROR;
2357   }
2358 
2359   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2360 
2361   rc = sqlite3_reset(pStmt);
2362   if( pStmt && sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ){
2363     return TCL_ERROR;
2364   }
2365   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
2366 /*
2367   if( rc ){
2368     return TCL_ERROR;
2369   }
2370 */
2371   return TCL_OK;
2372 }
2373 
2374 /*
2375 ** Usage:  sqlite3_expired STMT
2376 **
2377 ** Return TRUE if a recompilation of the statement is recommended.
2378 */
2379 static int test_expired(
2380   void * clientData,
2381   Tcl_Interp *interp,
2382   int objc,
2383   Tcl_Obj *CONST objv[]
2384 ){
2385 #ifndef SQLITE_OMIT_DEPRECATED
2386   sqlite3_stmt *pStmt;
2387   if( objc!=2 ){
2388     Tcl_AppendResult(interp, "wrong # args: should be \"",
2389         Tcl_GetStringFromObj(objv[0], 0), " <STMT>", 0);
2390     return TCL_ERROR;
2391   }
2392   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2393   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(sqlite3_expired(pStmt)));
2394 #endif
2395   return TCL_OK;
2396 }
2397 
2398 /*
2399 ** Usage:  sqlite3_transfer_bindings FROMSTMT TOSTMT
2400 **
2401 ** Transfer all bindings from FROMSTMT over to TOSTMT
2402 */
2403 static int test_transfer_bind(
2404   void * clientData,
2405   Tcl_Interp *interp,
2406   int objc,
2407   Tcl_Obj *CONST objv[]
2408 ){
2409 #ifndef SQLITE_OMIT_DEPRECATED
2410   sqlite3_stmt *pStmt1, *pStmt2;
2411   if( objc!=3 ){
2412     Tcl_AppendResult(interp, "wrong # args: should be \"",
2413         Tcl_GetStringFromObj(objv[0], 0), " FROM-STMT TO-STMT", 0);
2414     return TCL_ERROR;
2415   }
2416   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt1)) return TCL_ERROR;
2417   if( getStmtPointer(interp, Tcl_GetString(objv[2]), &pStmt2)) return TCL_ERROR;
2418   Tcl_SetObjResult(interp,
2419      Tcl_NewIntObj(sqlite3_transfer_bindings(pStmt1,pStmt2)));
2420 #endif
2421   return TCL_OK;
2422 }
2423 
2424 /*
2425 ** Usage:  sqlite3_changes DB
2426 **
2427 ** Return the number of changes made to the database by the last SQL
2428 ** execution.
2429 */
2430 static int test_changes(
2431   void * clientData,
2432   Tcl_Interp *interp,
2433   int objc,
2434   Tcl_Obj *CONST objv[]
2435 ){
2436   sqlite3 *db;
2437   if( objc!=2 ){
2438     Tcl_AppendResult(interp, "wrong # args: should be \"",
2439        Tcl_GetString(objv[0]), " DB", 0);
2440     return TCL_ERROR;
2441   }
2442   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2443   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_changes(db)));
2444   return TCL_OK;
2445 }
2446 
2447 /*
2448 ** This is the "static_bind_value" that variables are bound to when
2449 ** the FLAG option of sqlite3_bind is "static"
2450 */
2451 static char *sqlite_static_bind_value = 0;
2452 static int sqlite_static_bind_nbyte = 0;
2453 
2454 /*
2455 ** Usage:  sqlite3_bind  VM  IDX  VALUE  FLAGS
2456 **
2457 ** Sets the value of the IDX-th occurrence of "?" in the original SQL
2458 ** string.  VALUE is the new value.  If FLAGS=="null" then VALUE is
2459 ** ignored and the value is set to NULL.  If FLAGS=="static" then
2460 ** the value is set to the value of a static variable named
2461 ** "sqlite_static_bind_value".  If FLAGS=="normal" then a copy
2462 ** of the VALUE is made.  If FLAGS=="blob10" then a VALUE is ignored
2463 ** an a 10-byte blob "abc\000xyz\000pq" is inserted.
2464 */
2465 static int test_bind(
2466   void *NotUsed,
2467   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2468   int argc,              /* Number of arguments */
2469   char **argv            /* Text of each argument */
2470 ){
2471   sqlite3_stmt *pStmt;
2472   int rc;
2473   int idx;
2474   if( argc!=5 ){
2475     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
2476        " VM IDX VALUE (null|static|normal)\"", 0);
2477     return TCL_ERROR;
2478   }
2479   if( getStmtPointer(interp, argv[1], &pStmt) ) return TCL_ERROR;
2480   if( Tcl_GetInt(interp, argv[2], &idx) ) return TCL_ERROR;
2481   if( strcmp(argv[4],"null")==0 ){
2482     rc = sqlite3_bind_null(pStmt, idx);
2483   }else if( strcmp(argv[4],"static")==0 ){
2484     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value, -1, 0);
2485   }else if( strcmp(argv[4],"static-nbytes")==0 ){
2486     rc = sqlite3_bind_text(pStmt, idx, sqlite_static_bind_value,
2487                                        sqlite_static_bind_nbyte, 0);
2488   }else if( strcmp(argv[4],"normal")==0 ){
2489     rc = sqlite3_bind_text(pStmt, idx, argv[3], -1, SQLITE_TRANSIENT);
2490   }else if( strcmp(argv[4],"blob10")==0 ){
2491     rc = sqlite3_bind_text(pStmt, idx, "abc\000xyz\000pq", 10, SQLITE_STATIC);
2492   }else{
2493     Tcl_AppendResult(interp, "4th argument should be "
2494         "\"null\" or \"static\" or \"normal\"", 0);
2495     return TCL_ERROR;
2496   }
2497   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
2498   if( rc ){
2499     char zBuf[50];
2500     sprintf(zBuf, "(%d) ", rc);
2501     Tcl_AppendResult(interp, zBuf, sqlite3ErrStr(rc), 0);
2502     return TCL_ERROR;
2503   }
2504   return TCL_OK;
2505 }
2506 
2507 #ifndef SQLITE_OMIT_UTF16
2508 /*
2509 ** Usage: add_test_collate <db ptr> <utf8> <utf16le> <utf16be>
2510 **
2511 ** This function is used to test that SQLite selects the correct collation
2512 ** sequence callback when multiple versions (for different text encodings)
2513 ** are available.
2514 **
2515 ** Calling this routine registers the collation sequence "test_collate"
2516 ** with database handle <db>. The second argument must be a list of three
2517 ** boolean values. If the first is true, then a version of test_collate is
2518 ** registered for UTF-8, if the second is true, a version is registered for
2519 ** UTF-16le, if the third is true, a UTF-16be version is available.
2520 ** Previous versions of test_collate are deleted.
2521 **
2522 ** The collation sequence test_collate is implemented by calling the
2523 ** following TCL script:
2524 **
2525 **   "test_collate <enc> <lhs> <rhs>"
2526 **
2527 ** The <lhs> and <rhs> are the two values being compared, encoded in UTF-8.
2528 ** The <enc> parameter is the encoding of the collation function that
2529 ** SQLite selected to call. The TCL test script implements the
2530 ** "test_collate" proc.
2531 **
2532 ** Note that this will only work with one interpreter at a time, as the
2533 ** interp pointer to use when evaluating the TCL script is stored in
2534 ** pTestCollateInterp.
2535 */
2536 static Tcl_Interp* pTestCollateInterp;
2537 static int test_collate_func(
2538   void *pCtx,
2539   int nA, const void *zA,
2540   int nB, const void *zB
2541 ){
2542   Tcl_Interp *i = pTestCollateInterp;
2543   int encin = SQLITE_PTR_TO_INT(pCtx);
2544   int res;
2545   int n;
2546 
2547   sqlite3_value *pVal;
2548   Tcl_Obj *pX;
2549 
2550   pX = Tcl_NewStringObj("test_collate", -1);
2551   Tcl_IncrRefCount(pX);
2552 
2553   switch( encin ){
2554     case SQLITE_UTF8:
2555       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-8",-1));
2556       break;
2557     case SQLITE_UTF16LE:
2558       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16LE",-1));
2559       break;
2560     case SQLITE_UTF16BE:
2561       Tcl_ListObjAppendElement(i,pX,Tcl_NewStringObj("UTF-16BE",-1));
2562       break;
2563     default:
2564       assert(0);
2565   }
2566 
2567   sqlite3BeginBenignMalloc();
2568   pVal = sqlite3ValueNew(0);
2569   if( pVal ){
2570     sqlite3ValueSetStr(pVal, nA, zA, encin, SQLITE_STATIC);
2571     n = sqlite3_value_bytes(pVal);
2572     Tcl_ListObjAppendElement(i,pX,
2573         Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2574     sqlite3ValueSetStr(pVal, nB, zB, encin, SQLITE_STATIC);
2575     n = sqlite3_value_bytes(pVal);
2576     Tcl_ListObjAppendElement(i,pX,
2577         Tcl_NewStringObj((char*)sqlite3_value_text(pVal),n));
2578     sqlite3ValueFree(pVal);
2579   }
2580   sqlite3EndBenignMalloc();
2581 
2582   Tcl_EvalObjEx(i, pX, 0);
2583   Tcl_DecrRefCount(pX);
2584   Tcl_GetIntFromObj(i, Tcl_GetObjResult(i), &res);
2585   return res;
2586 }
2587 static int test_collate(
2588   void * clientData,
2589   Tcl_Interp *interp,
2590   int objc,
2591   Tcl_Obj *CONST objv[]
2592 ){
2593   sqlite3 *db;
2594   int val;
2595   sqlite3_value *pVal;
2596   int rc;
2597 
2598   if( objc!=5 ) goto bad_args;
2599   pTestCollateInterp = interp;
2600   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2601 
2602   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
2603   rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF8,
2604           (void *)SQLITE_UTF8, val?test_collate_func:0);
2605   if( rc==SQLITE_OK ){
2606     const void *zUtf16;
2607     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
2608     rc = sqlite3_create_collation(db, "test_collate", SQLITE_UTF16LE,
2609             (void *)SQLITE_UTF16LE, val?test_collate_func:0);
2610     if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
2611 
2612 #if 0
2613     if( sqlite3_iMallocFail>0 ){
2614       sqlite3_iMallocFail++;
2615     }
2616 #endif
2617     sqlite3_mutex_enter(db->mutex);
2618     pVal = sqlite3ValueNew(db);
2619     sqlite3ValueSetStr(pVal, -1, "test_collate", SQLITE_UTF8, SQLITE_STATIC);
2620     zUtf16 = sqlite3ValueText(pVal, SQLITE_UTF16NATIVE);
2621     if( db->mallocFailed ){
2622       rc = SQLITE_NOMEM;
2623     }else{
2624       rc = sqlite3_create_collation16(db, zUtf16, SQLITE_UTF16BE,
2625           (void *)SQLITE_UTF16BE, val?test_collate_func:0);
2626     }
2627     sqlite3ValueFree(pVal);
2628     sqlite3_mutex_leave(db->mutex);
2629   }
2630   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2631 
2632   if( rc!=SQLITE_OK ){
2633     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
2634     return TCL_ERROR;
2635   }
2636   return TCL_OK;
2637 
2638 bad_args:
2639   Tcl_AppendResult(interp, "wrong # args: should be \"",
2640       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
2641   return TCL_ERROR;
2642 }
2643 
2644 /*
2645 ** Usage: add_test_utf16bin_collate <db ptr>
2646 **
2647 ** Add a utf-16 collation sequence named "utf16bin" to the database
2648 ** handle. This collation sequence compares arguments in the same way as the
2649 ** built-in collation "binary".
2650 */
2651 static int test_utf16bin_collate_func(
2652   void *pCtx,
2653   int nA, const void *zA,
2654   int nB, const void *zB
2655 ){
2656   int nCmp = (nA>nB ? nB : nA);
2657   int res = memcmp(zA, zB, nCmp);
2658   if( res==0 ) res = nA - nB;
2659   return res;
2660 }
2661 static int test_utf16bin_collate(
2662   void * clientData,
2663   Tcl_Interp *interp,
2664   int objc,
2665   Tcl_Obj *CONST objv[]
2666 ){
2667   sqlite3 *db;
2668   int rc;
2669 
2670   if( objc!=2 ) goto bad_args;
2671   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2672 
2673   rc = sqlite3_create_collation(db, "utf16bin", SQLITE_UTF16, 0,
2674       test_utf16bin_collate_func
2675   );
2676   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2677   return TCL_OK;
2678 
2679 bad_args:
2680   Tcl_WrongNumArgs(interp, 1, objv, "DB");
2681   return TCL_ERROR;
2682 }
2683 
2684 /*
2685 ** When the collation needed callback is invoked, record the name of
2686 ** the requested collating function here.  The recorded name is linked
2687 ** to a TCL variable and used to make sure that the requested collation
2688 ** name is correct.
2689 */
2690 static char zNeededCollation[200];
2691 static char *pzNeededCollation = zNeededCollation;
2692 
2693 
2694 /*
2695 ** Called when a collating sequence is needed.  Registered using
2696 ** sqlite3_collation_needed16().
2697 */
2698 static void test_collate_needed_cb(
2699   void *pCtx,
2700   sqlite3 *db,
2701   int eTextRep,
2702   const void *pName
2703 ){
2704   int enc = ENC(db);
2705   int i;
2706   char *z;
2707   for(z = (char*)pName, i=0; *z || z[1]; z++){
2708     if( *z ) zNeededCollation[i++] = *z;
2709   }
2710   zNeededCollation[i] = 0;
2711   sqlite3_create_collation(
2712       db, "test_collate", ENC(db), SQLITE_INT_TO_PTR(enc), test_collate_func);
2713 }
2714 
2715 /*
2716 ** Usage: add_test_collate_needed DB
2717 */
2718 static int test_collate_needed(
2719   void * clientData,
2720   Tcl_Interp *interp,
2721   int objc,
2722   Tcl_Obj *CONST objv[]
2723 ){
2724   sqlite3 *db;
2725   int rc;
2726 
2727   if( objc!=2 ) goto bad_args;
2728   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2729   rc = sqlite3_collation_needed16(db, 0, test_collate_needed_cb);
2730   zNeededCollation[0] = 0;
2731   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
2732   return TCL_OK;
2733 
2734 bad_args:
2735   Tcl_WrongNumArgs(interp, 1, objv, "DB");
2736   return TCL_ERROR;
2737 }
2738 
2739 /*
2740 ** tclcmd:   add_alignment_test_collations  DB
2741 **
2742 ** Add two new collating sequences to the database DB
2743 **
2744 **     utf16_aligned
2745 **     utf16_unaligned
2746 **
2747 ** Both collating sequences use the same sort order as BINARY.
2748 ** The only difference is that the utf16_aligned collating
2749 ** sequence is declared with the SQLITE_UTF16_ALIGNED flag.
2750 ** Both collating functions increment the unaligned utf16 counter
2751 ** whenever they see a string that begins on an odd byte boundary.
2752 */
2753 static int unaligned_string_counter = 0;
2754 static int alignmentCollFunc(
2755   void *NotUsed,
2756   int nKey1, const void *pKey1,
2757   int nKey2, const void *pKey2
2758 ){
2759   int rc, n;
2760   n = nKey1<nKey2 ? nKey1 : nKey2;
2761   if( nKey1>0 && 1==(1&(SQLITE_PTR_TO_INT(pKey1))) ) unaligned_string_counter++;
2762   if( nKey2>0 && 1==(1&(SQLITE_PTR_TO_INT(pKey2))) ) unaligned_string_counter++;
2763   rc = memcmp(pKey1, pKey2, n);
2764   if( rc==0 ){
2765     rc = nKey1 - nKey2;
2766   }
2767   return rc;
2768 }
2769 static int add_alignment_test_collations(
2770   void * clientData,
2771   Tcl_Interp *interp,
2772   int objc,
2773   Tcl_Obj *CONST objv[]
2774 ){
2775   sqlite3 *db;
2776   if( objc>=2 ){
2777     if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2778     sqlite3_create_collation(db, "utf16_unaligned", SQLITE_UTF16,
2779         0, alignmentCollFunc);
2780     sqlite3_create_collation(db, "utf16_aligned", SQLITE_UTF16_ALIGNED,
2781         0, alignmentCollFunc);
2782   }
2783   return SQLITE_OK;
2784 }
2785 #endif /* !defined(SQLITE_OMIT_UTF16) */
2786 
2787 /*
2788 ** Usage: add_test_function <db ptr> <utf8> <utf16le> <utf16be>
2789 **
2790 ** This function is used to test that SQLite selects the correct user
2791 ** function callback when multiple versions (for different text encodings)
2792 ** are available.
2793 **
2794 ** Calling this routine registers up to three versions of the user function
2795 ** "test_function" with database handle <db>.  If the second argument is
2796 ** true, then a version of test_function is registered for UTF-8, if the
2797 ** third is true, a version is registered for UTF-16le, if the fourth is
2798 ** true, a UTF-16be version is available.  Previous versions of
2799 ** test_function are deleted.
2800 **
2801 ** The user function is implemented by calling the following TCL script:
2802 **
2803 **   "test_function <enc> <arg>"
2804 **
2805 ** Where <enc> is one of UTF-8, UTF-16LE or UTF16BE, and <arg> is the
2806 ** single argument passed to the SQL function. The value returned by
2807 ** the TCL script is used as the return value of the SQL function. It
2808 ** is passed to SQLite using UTF-16BE for a UTF-8 test_function(), UTF-8
2809 ** for a UTF-16LE test_function(), and UTF-16LE for an implementation that
2810 ** prefers UTF-16BE.
2811 */
2812 #ifndef SQLITE_OMIT_UTF16
2813 static void test_function_utf8(
2814   sqlite3_context *pCtx,
2815   int nArg,
2816   sqlite3_value **argv
2817 ){
2818   Tcl_Interp *interp;
2819   Tcl_Obj *pX;
2820   sqlite3_value *pVal;
2821   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
2822   pX = Tcl_NewStringObj("test_function", -1);
2823   Tcl_IncrRefCount(pX);
2824   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-8", -1));
2825   Tcl_ListObjAppendElement(interp, pX,
2826       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
2827   Tcl_EvalObjEx(interp, pX, 0);
2828   Tcl_DecrRefCount(pX);
2829   sqlite3_result_text(pCtx, Tcl_GetStringResult(interp), -1, SQLITE_TRANSIENT);
2830   pVal = sqlite3ValueNew(0);
2831   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
2832       SQLITE_UTF8, SQLITE_STATIC);
2833   sqlite3_result_text16be(pCtx, sqlite3_value_text16be(pVal),
2834       -1, SQLITE_TRANSIENT);
2835   sqlite3ValueFree(pVal);
2836 }
2837 static void test_function_utf16le(
2838   sqlite3_context *pCtx,
2839   int nArg,
2840   sqlite3_value **argv
2841 ){
2842   Tcl_Interp *interp;
2843   Tcl_Obj *pX;
2844   sqlite3_value *pVal;
2845   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
2846   pX = Tcl_NewStringObj("test_function", -1);
2847   Tcl_IncrRefCount(pX);
2848   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16LE", -1));
2849   Tcl_ListObjAppendElement(interp, pX,
2850       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
2851   Tcl_EvalObjEx(interp, pX, 0);
2852   Tcl_DecrRefCount(pX);
2853   pVal = sqlite3ValueNew(0);
2854   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
2855       SQLITE_UTF8, SQLITE_STATIC);
2856   sqlite3_result_text(pCtx,(char*)sqlite3_value_text(pVal),-1,SQLITE_TRANSIENT);
2857   sqlite3ValueFree(pVal);
2858 }
2859 static void test_function_utf16be(
2860   sqlite3_context *pCtx,
2861   int nArg,
2862   sqlite3_value **argv
2863 ){
2864   Tcl_Interp *interp;
2865   Tcl_Obj *pX;
2866   sqlite3_value *pVal;
2867   interp = (Tcl_Interp *)sqlite3_user_data(pCtx);
2868   pX = Tcl_NewStringObj("test_function", -1);
2869   Tcl_IncrRefCount(pX);
2870   Tcl_ListObjAppendElement(interp, pX, Tcl_NewStringObj("UTF-16BE", -1));
2871   Tcl_ListObjAppendElement(interp, pX,
2872       Tcl_NewStringObj((char*)sqlite3_value_text(argv[0]), -1));
2873   Tcl_EvalObjEx(interp, pX, 0);
2874   Tcl_DecrRefCount(pX);
2875   pVal = sqlite3ValueNew(0);
2876   sqlite3ValueSetStr(pVal, -1, Tcl_GetStringResult(interp),
2877       SQLITE_UTF8, SQLITE_STATIC);
2878   sqlite3_result_text16(pCtx, sqlite3_value_text16le(pVal),
2879       -1, SQLITE_TRANSIENT);
2880   sqlite3_result_text16be(pCtx, sqlite3_value_text16le(pVal),
2881       -1, SQLITE_TRANSIENT);
2882   sqlite3_result_text16le(pCtx, sqlite3_value_text16le(pVal),
2883       -1, SQLITE_TRANSIENT);
2884   sqlite3ValueFree(pVal);
2885 }
2886 #endif /* SQLITE_OMIT_UTF16 */
2887 static int test_function(
2888   void * clientData,
2889   Tcl_Interp *interp,
2890   int objc,
2891   Tcl_Obj *CONST objv[]
2892 ){
2893 #ifndef SQLITE_OMIT_UTF16
2894   sqlite3 *db;
2895   int val;
2896 
2897   if( objc!=5 ) goto bad_args;
2898   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
2899 
2900   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
2901   if( val ){
2902     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF8,
2903         interp, test_function_utf8, 0, 0);
2904   }
2905   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[3], &val) ) return TCL_ERROR;
2906   if( val ){
2907     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16LE,
2908         interp, test_function_utf16le, 0, 0);
2909   }
2910   if( TCL_OK!=Tcl_GetBooleanFromObj(interp, objv[4], &val) ) return TCL_ERROR;
2911   if( val ){
2912     sqlite3_create_function(db, "test_function", 1, SQLITE_UTF16BE,
2913         interp, test_function_utf16be, 0, 0);
2914   }
2915 
2916   return TCL_OK;
2917 bad_args:
2918   Tcl_AppendResult(interp, "wrong # args: should be \"",
2919       Tcl_GetStringFromObj(objv[0], 0), " <DB> <utf8> <utf16le> <utf16be>", 0);
2920 #endif /* SQLITE_OMIT_UTF16 */
2921   return TCL_ERROR;
2922 }
2923 
2924 /*
2925 ** Usage:         sqlite3_test_errstr <err code>
2926 **
2927 ** Test that the english language string equivalents for sqlite error codes
2928 ** are sane. The parameter is an integer representing an sqlite error code.
2929 ** The result is a list of two elements, the string representation of the
2930 ** error code and the english language explanation.
2931 */
2932 static int test_errstr(
2933   void * clientData,
2934   Tcl_Interp *interp,
2935   int objc,
2936   Tcl_Obj *CONST objv[]
2937 ){
2938   char *zCode;
2939   int i;
2940   if( objc!=1 ){
2941     Tcl_WrongNumArgs(interp, 1, objv, "<error code>");
2942   }
2943 
2944   zCode = Tcl_GetString(objv[1]);
2945   for(i=0; i<200; i++){
2946     if( 0==strcmp(t1ErrorName(i), zCode) ) break;
2947   }
2948   Tcl_SetResult(interp, (char *)sqlite3ErrStr(i), 0);
2949   return TCL_OK;
2950 }
2951 
2952 /*
2953 ** Usage:    breakpoint
2954 **
2955 ** This routine exists for one purpose - to provide a place to put a
2956 ** breakpoint with GDB that can be triggered using TCL code.  The use
2957 ** for this is when a particular test fails on (say) the 1485th iteration.
2958 ** In the TCL test script, we can add code like this:
2959 **
2960 **     if {$i==1485} breakpoint
2961 **
2962 ** Then run testfixture in the debugger and wait for the breakpoint to
2963 ** fire.  Then additional breakpoints can be set to trace down the bug.
2964 */
2965 static int test_breakpoint(
2966   void *NotUsed,
2967   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
2968   int argc,              /* Number of arguments */
2969   char **argv            /* Text of each argument */
2970 ){
2971   return TCL_OK;         /* Do nothing */
2972 }
2973 
2974 /*
2975 ** Usage:   sqlite3_bind_zeroblob  STMT IDX N
2976 **
2977 ** Test the sqlite3_bind_zeroblob interface.  STMT is a prepared statement.
2978 ** IDX is the index of a wildcard in the prepared statement.  This command
2979 ** binds a N-byte zero-filled BLOB to the wildcard.
2980 */
2981 static int test_bind_zeroblob(
2982   void * clientData,
2983   Tcl_Interp *interp,
2984   int objc,
2985   Tcl_Obj *CONST objv[]
2986 ){
2987   sqlite3_stmt *pStmt;
2988   int idx;
2989   int n;
2990   int rc;
2991 
2992   if( objc!=4 ){
2993     Tcl_WrongNumArgs(interp, 1, objv, "STMT IDX N");
2994     return TCL_ERROR;
2995   }
2996 
2997   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
2998   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
2999   if( Tcl_GetIntFromObj(interp, objv[3], &n) ) return TCL_ERROR;
3000 
3001   rc = sqlite3_bind_zeroblob(pStmt, idx, n);
3002   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3003   if( rc!=SQLITE_OK ){
3004     return TCL_ERROR;
3005   }
3006 
3007   return TCL_OK;
3008 }
3009 
3010 /*
3011 ** Usage:   sqlite3_bind_int  STMT N VALUE
3012 **
3013 ** Test the sqlite3_bind_int interface.  STMT is a prepared statement.
3014 ** N is the index of a wildcard in the prepared statement.  This command
3015 ** binds a 32-bit integer VALUE to that wildcard.
3016 */
3017 static int test_bind_int(
3018   void * clientData,
3019   Tcl_Interp *interp,
3020   int objc,
3021   Tcl_Obj *CONST objv[]
3022 ){
3023   sqlite3_stmt *pStmt;
3024   int idx;
3025   int value;
3026   int rc;
3027 
3028   if( objc!=4 ){
3029     Tcl_AppendResult(interp, "wrong # args: should be \"",
3030         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3031     return TCL_ERROR;
3032   }
3033 
3034   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3035   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3036   if( Tcl_GetIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
3037 
3038   rc = sqlite3_bind_int(pStmt, idx, value);
3039   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3040   if( rc!=SQLITE_OK ){
3041     return TCL_ERROR;
3042   }
3043 
3044   return TCL_OK;
3045 }
3046 
3047 
3048 /*
3049 ** Usage:   sqlite3_bind_int64  STMT N VALUE
3050 **
3051 ** Test the sqlite3_bind_int64 interface.  STMT is a prepared statement.
3052 ** N is the index of a wildcard in the prepared statement.  This command
3053 ** binds a 64-bit integer VALUE to that wildcard.
3054 */
3055 static int test_bind_int64(
3056   void * clientData,
3057   Tcl_Interp *interp,
3058   int objc,
3059   Tcl_Obj *CONST objv[]
3060 ){
3061   sqlite3_stmt *pStmt;
3062   int idx;
3063   Tcl_WideInt value;
3064   int rc;
3065 
3066   if( objc!=4 ){
3067     Tcl_AppendResult(interp, "wrong # args: should be \"",
3068         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3069     return TCL_ERROR;
3070   }
3071 
3072   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3073   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3074   if( Tcl_GetWideIntFromObj(interp, objv[3], &value) ) return TCL_ERROR;
3075 
3076   rc = sqlite3_bind_int64(pStmt, idx, value);
3077   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3078   if( rc!=SQLITE_OK ){
3079     return TCL_ERROR;
3080   }
3081 
3082   return TCL_OK;
3083 }
3084 
3085 
3086 /*
3087 ** Usage:   sqlite3_bind_double  STMT N VALUE
3088 **
3089 ** Test the sqlite3_bind_double interface.  STMT is a prepared statement.
3090 ** N is the index of a wildcard in the prepared statement.  This command
3091 ** binds a 64-bit integer VALUE to that wildcard.
3092 */
3093 static int test_bind_double(
3094   void * clientData,
3095   Tcl_Interp *interp,
3096   int objc,
3097   Tcl_Obj *CONST objv[]
3098 ){
3099   sqlite3_stmt *pStmt;
3100   int idx;
3101   double value = 0;
3102   int rc;
3103   const char *zVal;
3104   int i;
3105   static const struct {
3106     const char *zName;     /* Name of the special floating point value */
3107     unsigned int iUpper;   /* Upper 32 bits */
3108     unsigned int iLower;   /* Lower 32 bits */
3109   } aSpecialFp[] = {
3110     {  "NaN",      0x7fffffff, 0xffffffff },
3111     {  "SNaN",     0x7ff7ffff, 0xffffffff },
3112     {  "-NaN",     0xffffffff, 0xffffffff },
3113     {  "-SNaN",    0xfff7ffff, 0xffffffff },
3114     {  "+Inf",     0x7ff00000, 0x00000000 },
3115     {  "-Inf",     0xfff00000, 0x00000000 },
3116     {  "Epsilon",  0x00000000, 0x00000001 },
3117     {  "-Epsilon", 0x80000000, 0x00000001 },
3118     {  "NaN0",     0x7ff80000, 0x00000000 },
3119     {  "-NaN0",    0xfff80000, 0x00000000 },
3120   };
3121 
3122   if( objc!=4 ){
3123     Tcl_AppendResult(interp, "wrong # args: should be \"",
3124         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE", 0);
3125     return TCL_ERROR;
3126   }
3127 
3128   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3129   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3130 
3131   /* Intercept the string "NaN" and generate a NaN value for it.
3132   ** All other strings are passed through to Tcl_GetDoubleFromObj().
3133   ** Tcl_GetDoubleFromObj() should understand "NaN" but some versions
3134   ** contain a bug.
3135   */
3136   zVal = Tcl_GetString(objv[3]);
3137   for(i=0; i<sizeof(aSpecialFp)/sizeof(aSpecialFp[0]); i++){
3138     if( strcmp(aSpecialFp[i].zName, zVal)==0 ){
3139       sqlite3_uint64 x;
3140       x = aSpecialFp[i].iUpper;
3141       x <<= 32;
3142       x |= aSpecialFp[i].iLower;
3143       assert( sizeof(value)==8 );
3144       assert( sizeof(x)==8 );
3145       memcpy(&value, &x, 8);
3146       break;
3147     }
3148   }
3149   if( i>=sizeof(aSpecialFp)/sizeof(aSpecialFp[0]) &&
3150          Tcl_GetDoubleFromObj(interp, objv[3], &value) ){
3151     return TCL_ERROR;
3152   }
3153   rc = sqlite3_bind_double(pStmt, idx, value);
3154   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3155   if( rc!=SQLITE_OK ){
3156     return TCL_ERROR;
3157   }
3158 
3159   return TCL_OK;
3160 }
3161 
3162 /*
3163 ** Usage:   sqlite3_bind_null  STMT N
3164 **
3165 ** Test the sqlite3_bind_null interface.  STMT is a prepared statement.
3166 ** N is the index of a wildcard in the prepared statement.  This command
3167 ** binds a NULL to the wildcard.
3168 */
3169 static int test_bind_null(
3170   void * clientData,
3171   Tcl_Interp *interp,
3172   int objc,
3173   Tcl_Obj *CONST objv[]
3174 ){
3175   sqlite3_stmt *pStmt;
3176   int idx;
3177   int rc;
3178 
3179   if( objc!=3 ){
3180     Tcl_AppendResult(interp, "wrong # args: should be \"",
3181         Tcl_GetStringFromObj(objv[0], 0), " STMT N", 0);
3182     return TCL_ERROR;
3183   }
3184 
3185   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3186   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3187 
3188   rc = sqlite3_bind_null(pStmt, idx);
3189   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3190   if( rc!=SQLITE_OK ){
3191     return TCL_ERROR;
3192   }
3193 
3194   return TCL_OK;
3195 }
3196 
3197 /*
3198 ** Usage:   sqlite3_bind_text  STMT N STRING BYTES
3199 **
3200 ** Test the sqlite3_bind_text interface.  STMT is a prepared statement.
3201 ** N is the index of a wildcard in the prepared statement.  This command
3202 ** binds a UTF-8 string STRING to the wildcard.  The string is BYTES bytes
3203 ** long.
3204 */
3205 static int test_bind_text(
3206   void * clientData,
3207   Tcl_Interp *interp,
3208   int objc,
3209   Tcl_Obj *CONST objv[]
3210 ){
3211   sqlite3_stmt *pStmt;
3212   int idx;
3213   int bytes;
3214   char *value;
3215   int rc;
3216 
3217   if( objc!=5 ){
3218     Tcl_AppendResult(interp, "wrong # args: should be \"",
3219         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
3220     return TCL_ERROR;
3221   }
3222 
3223   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3224   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3225   value = (char*)Tcl_GetByteArrayFromObj(objv[3], &bytes);
3226   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3227 
3228   rc = sqlite3_bind_text(pStmt, idx, value, bytes, SQLITE_TRANSIENT);
3229   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3230   if( rc!=SQLITE_OK ){
3231     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3232     return TCL_ERROR;
3233   }
3234 
3235   return TCL_OK;
3236 }
3237 
3238 /*
3239 ** Usage:   sqlite3_bind_text16 ?-static? STMT N STRING BYTES
3240 **
3241 ** Test the sqlite3_bind_text16 interface.  STMT is a prepared statement.
3242 ** N is the index of a wildcard in the prepared statement.  This command
3243 ** binds a UTF-16 string STRING to the wildcard.  The string is BYTES bytes
3244 ** long.
3245 */
3246 static int test_bind_text16(
3247   void * clientData,
3248   Tcl_Interp *interp,
3249   int objc,
3250   Tcl_Obj *CONST objv[]
3251 ){
3252 #ifndef SQLITE_OMIT_UTF16
3253   sqlite3_stmt *pStmt;
3254   int idx;
3255   int bytes;
3256   char *value;
3257   int rc;
3258 
3259   void (*xDel)(void*) = (objc==6?SQLITE_STATIC:SQLITE_TRANSIENT);
3260   Tcl_Obj *oStmt    = objv[objc-4];
3261   Tcl_Obj *oN       = objv[objc-3];
3262   Tcl_Obj *oString  = objv[objc-2];
3263   Tcl_Obj *oBytes   = objv[objc-1];
3264 
3265   if( objc!=5 && objc!=6){
3266     Tcl_AppendResult(interp, "wrong # args: should be \"",
3267         Tcl_GetStringFromObj(objv[0], 0), " STMT N VALUE BYTES", 0);
3268     return TCL_ERROR;
3269   }
3270 
3271   if( getStmtPointer(interp, Tcl_GetString(oStmt), &pStmt) ) return TCL_ERROR;
3272   if( Tcl_GetIntFromObj(interp, oN, &idx) ) return TCL_ERROR;
3273   value = (char*)Tcl_GetByteArrayFromObj(oString, 0);
3274   if( Tcl_GetIntFromObj(interp, oBytes, &bytes) ) return TCL_ERROR;
3275 
3276   rc = sqlite3_bind_text16(pStmt, idx, (void *)value, bytes, xDel);
3277   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3278   if( rc!=SQLITE_OK ){
3279     Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
3280     return TCL_ERROR;
3281   }
3282 
3283 #endif /* SQLITE_OMIT_UTF16 */
3284   return TCL_OK;
3285 }
3286 
3287 /*
3288 ** Usage:   sqlite3_bind_blob ?-static? STMT N DATA BYTES
3289 **
3290 ** Test the sqlite3_bind_blob interface.  STMT is a prepared statement.
3291 ** N is the index of a wildcard in the prepared statement.  This command
3292 ** binds a BLOB to the wildcard.  The BLOB is BYTES bytes in size.
3293 */
3294 static int test_bind_blob(
3295   void * clientData,
3296   Tcl_Interp *interp,
3297   int objc,
3298   Tcl_Obj *CONST objv[]
3299 ){
3300   sqlite3_stmt *pStmt;
3301   int idx;
3302   int bytes;
3303   char *value;
3304   int rc;
3305   sqlite3_destructor_type xDestructor = SQLITE_TRANSIENT;
3306 
3307   if( objc!=5 && objc!=6 ){
3308     Tcl_AppendResult(interp, "wrong # args: should be \"",
3309         Tcl_GetStringFromObj(objv[0], 0), " STMT N DATA BYTES", 0);
3310     return TCL_ERROR;
3311   }
3312 
3313   if( objc==6 ){
3314     xDestructor = SQLITE_STATIC;
3315     objv++;
3316   }
3317 
3318   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3319   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
3320   value = Tcl_GetString(objv[3]);
3321   if( Tcl_GetIntFromObj(interp, objv[4], &bytes) ) return TCL_ERROR;
3322 
3323   rc = sqlite3_bind_blob(pStmt, idx, value, bytes, xDestructor);
3324   if( sqlite3TestErrCode(interp, StmtToDb(pStmt), rc) ) return TCL_ERROR;
3325   if( rc!=SQLITE_OK ){
3326     return TCL_ERROR;
3327   }
3328 
3329   return TCL_OK;
3330 }
3331 
3332 /*
3333 ** Usage:   sqlite3_bind_parameter_count  STMT
3334 **
3335 ** Return the number of wildcards in the given statement.
3336 */
3337 static int test_bind_parameter_count(
3338   void * clientData,
3339   Tcl_Interp *interp,
3340   int objc,
3341   Tcl_Obj *CONST objv[]
3342 ){
3343   sqlite3_stmt *pStmt;
3344 
3345   if( objc!=2 ){
3346     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3347     return TCL_ERROR;
3348   }
3349   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3350   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_bind_parameter_count(pStmt)));
3351   return TCL_OK;
3352 }
3353 
3354 /*
3355 ** Usage:   sqlite3_bind_parameter_name  STMT  N
3356 **
3357 ** Return the name of the Nth wildcard.  The first wildcard is 1.
3358 ** An empty string is returned if N is out of range or if the wildcard
3359 ** is nameless.
3360 */
3361 static int test_bind_parameter_name(
3362   void * clientData,
3363   Tcl_Interp *interp,
3364   int objc,
3365   Tcl_Obj *CONST objv[]
3366 ){
3367   sqlite3_stmt *pStmt;
3368   int i;
3369 
3370   if( objc!=3 ){
3371     Tcl_WrongNumArgs(interp, 1, objv, "STMT N");
3372     return TCL_ERROR;
3373   }
3374   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3375   if( Tcl_GetIntFromObj(interp, objv[2], &i) ) return TCL_ERROR;
3376   Tcl_SetObjResult(interp,
3377      Tcl_NewStringObj(sqlite3_bind_parameter_name(pStmt,i),-1)
3378   );
3379   return TCL_OK;
3380 }
3381 
3382 /*
3383 ** Usage:   sqlite3_bind_parameter_index  STMT  NAME
3384 **
3385 ** Return the index of the wildcard called NAME.  Return 0 if there is
3386 ** no such wildcard.
3387 */
3388 static int test_bind_parameter_index(
3389   void * clientData,
3390   Tcl_Interp *interp,
3391   int objc,
3392   Tcl_Obj *CONST objv[]
3393 ){
3394   sqlite3_stmt *pStmt;
3395 
3396   if( objc!=3 ){
3397     Tcl_WrongNumArgs(interp, 1, objv, "STMT NAME");
3398     return TCL_ERROR;
3399   }
3400   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3401   Tcl_SetObjResult(interp,
3402      Tcl_NewIntObj(
3403        sqlite3_bind_parameter_index(pStmt,Tcl_GetString(objv[2]))
3404      )
3405   );
3406   return TCL_OK;
3407 }
3408 
3409 /*
3410 ** Usage:   sqlite3_clear_bindings STMT
3411 **
3412 */
3413 static int test_clear_bindings(
3414   void * clientData,
3415   Tcl_Interp *interp,
3416   int objc,
3417   Tcl_Obj *CONST objv[]
3418 ){
3419   sqlite3_stmt *pStmt;
3420 
3421   if( objc!=2 ){
3422     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
3423     return TCL_ERROR;
3424   }
3425   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
3426   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_clear_bindings(pStmt)));
3427   return TCL_OK;
3428 }
3429 
3430 /*
3431 ** Usage:   sqlite3_sleep MILLISECONDS
3432 */
3433 static int test_sleep(
3434   void * clientData,
3435   Tcl_Interp *interp,
3436   int objc,
3437   Tcl_Obj *CONST objv[]
3438 ){
3439   int ms;
3440 
3441   if( objc!=2 ){
3442     Tcl_WrongNumArgs(interp, 1, objv, "MILLISECONDS");
3443     return TCL_ERROR;
3444   }
3445   if( Tcl_GetIntFromObj(interp, objv[1], &ms) ){
3446     return TCL_ERROR;
3447   }
3448   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_sleep(ms)));
3449   return TCL_OK;
3450 }
3451 
3452 /*
3453 ** Usage: sqlite3_extended_errcode DB
3454 **
3455 ** Return the string representation of the most recent sqlite3_* API
3456 ** error code. e.g. "SQLITE_ERROR".
3457 */
3458 static int test_ex_errcode(
3459   void * clientData,
3460   Tcl_Interp *interp,
3461   int objc,
3462   Tcl_Obj *CONST objv[]
3463 ){
3464   sqlite3 *db;
3465   int rc;
3466 
3467   if( objc!=2 ){
3468     Tcl_AppendResult(interp, "wrong # args: should be \"",
3469        Tcl_GetString(objv[0]), " DB", 0);
3470     return TCL_ERROR;
3471   }
3472   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3473   rc = sqlite3_extended_errcode(db);
3474   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
3475   return TCL_OK;
3476 }
3477 
3478 
3479 /*
3480 ** Usage: sqlite3_errcode DB
3481 **
3482 ** Return the string representation of the most recent sqlite3_* API
3483 ** error code. e.g. "SQLITE_ERROR".
3484 */
3485 static int test_errcode(
3486   void * clientData,
3487   Tcl_Interp *interp,
3488   int objc,
3489   Tcl_Obj *CONST objv[]
3490 ){
3491   sqlite3 *db;
3492   int rc;
3493 
3494   if( objc!=2 ){
3495     Tcl_AppendResult(interp, "wrong # args: should be \"",
3496        Tcl_GetString(objv[0]), " DB", 0);
3497     return TCL_ERROR;
3498   }
3499   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3500   rc = sqlite3_errcode(db);
3501   Tcl_AppendResult(interp, (char *)t1ErrorName(rc), 0);
3502   return TCL_OK;
3503 }
3504 
3505 /*
3506 ** Usage:   sqlite3_errmsg DB
3507 **
3508 ** Returns the UTF-8 representation of the error message string for the
3509 ** most recent sqlite3_* API call.
3510 */
3511 static int test_errmsg(
3512   void * clientData,
3513   Tcl_Interp *interp,
3514   int objc,
3515   Tcl_Obj *CONST objv[]
3516 ){
3517   sqlite3 *db;
3518   const char *zErr;
3519 
3520   if( objc!=2 ){
3521     Tcl_AppendResult(interp, "wrong # args: should be \"",
3522        Tcl_GetString(objv[0]), " DB", 0);
3523     return TCL_ERROR;
3524   }
3525   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3526 
3527   zErr = sqlite3_errmsg(db);
3528   Tcl_SetObjResult(interp, Tcl_NewStringObj(zErr, -1));
3529   return TCL_OK;
3530 }
3531 
3532 /*
3533 ** Usage:   test_errmsg16 DB
3534 **
3535 ** Returns the UTF-16 representation of the error message string for the
3536 ** most recent sqlite3_* API call. This is a byte array object at the TCL
3537 ** level, and it includes the 0x00 0x00 terminator bytes at the end of the
3538 ** UTF-16 string.
3539 */
3540 static int test_errmsg16(
3541   void * clientData,
3542   Tcl_Interp *interp,
3543   int objc,
3544   Tcl_Obj *CONST objv[]
3545 ){
3546 #ifndef SQLITE_OMIT_UTF16
3547   sqlite3 *db;
3548   const void *zErr;
3549   const char *z;
3550   int bytes = 0;
3551 
3552   if( objc!=2 ){
3553     Tcl_AppendResult(interp, "wrong # args: should be \"",
3554        Tcl_GetString(objv[0]), " DB", 0);
3555     return TCL_ERROR;
3556   }
3557   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3558 
3559   zErr = sqlite3_errmsg16(db);
3560   if( zErr ){
3561     z = zErr;
3562     for(bytes=0; z[bytes] || z[bytes+1]; bytes+=2){}
3563   }
3564   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(zErr, bytes));
3565 #endif /* SQLITE_OMIT_UTF16 */
3566   return TCL_OK;
3567 }
3568 
3569 /*
3570 ** Usage: sqlite3_prepare DB sql bytes ?tailvar?
3571 **
3572 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
3573 ** database handle <DB>. The parameter <tailval> is the name of a global
3574 ** variable that is set to the unused portion of <sql> (if any). A
3575 ** STMT handle is returned.
3576 */
3577 static int test_prepare(
3578   void * clientData,
3579   Tcl_Interp *interp,
3580   int objc,
3581   Tcl_Obj *CONST objv[]
3582 ){
3583   sqlite3 *db;
3584   const char *zSql;
3585   int bytes;
3586   const char *zTail = 0;
3587   sqlite3_stmt *pStmt = 0;
3588   char zBuf[50];
3589   int rc;
3590 
3591   if( objc!=5 && objc!=4 ){
3592     Tcl_AppendResult(interp, "wrong # args: should be \"",
3593        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
3594     return TCL_ERROR;
3595   }
3596   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3597   zSql = Tcl_GetString(objv[2]);
3598   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
3599 
3600   rc = sqlite3_prepare(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
3601   Tcl_ResetResult(interp);
3602   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3603   if( zTail && objc>=5 ){
3604     if( bytes>=0 ){
3605       bytes = bytes - (int)(zTail-zSql);
3606     }
3607     if( (int)strlen(zTail)<bytes ){
3608       bytes = (int)strlen(zTail);
3609     }
3610     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
3611   }
3612   if( rc!=SQLITE_OK ){
3613     assert( pStmt==0 );
3614     sprintf(zBuf, "(%d) ", rc);
3615     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
3616     return TCL_ERROR;
3617   }
3618 
3619   if( pStmt ){
3620     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3621     Tcl_AppendResult(interp, zBuf, 0);
3622   }
3623   return TCL_OK;
3624 }
3625 
3626 /*
3627 ** Usage: sqlite3_prepare_v2 DB sql bytes ?tailvar?
3628 **
3629 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
3630 ** database handle <DB>. The parameter <tailval> is the name of a global
3631 ** variable that is set to the unused portion of <sql> (if any). A
3632 ** STMT handle is returned.
3633 */
3634 static int test_prepare_v2(
3635   void * clientData,
3636   Tcl_Interp *interp,
3637   int objc,
3638   Tcl_Obj *CONST objv[]
3639 ){
3640   sqlite3 *db;
3641   const char *zSql;
3642   char *zCopy = 0;                /* malloc() copy of zSql */
3643   int bytes;
3644   const char *zTail = 0;
3645   sqlite3_stmt *pStmt = 0;
3646   char zBuf[50];
3647   int rc;
3648 
3649   if( objc!=5 && objc!=4 ){
3650     Tcl_AppendResult(interp, "wrong # args: should be \"",
3651        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
3652     return TCL_ERROR;
3653   }
3654   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3655   zSql = Tcl_GetString(objv[2]);
3656   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
3657 
3658   /* Instead of using zSql directly, make a copy into a buffer obtained
3659   ** directly from malloc(). The idea is to make it easier for valgrind
3660   ** to spot buffer overreads.  */
3661   if( bytes>=0 ){
3662     zCopy = malloc(bytes);
3663     memcpy(zCopy, zSql, bytes);
3664   }else{
3665     int n = (int)strlen(zSql) + 1;
3666     zCopy = malloc(n);
3667     memcpy(zCopy, zSql, n);
3668   }
3669   rc = sqlite3_prepare_v2(db, zCopy, bytes, &pStmt, objc>=5 ? &zTail : 0);
3670   free(zCopy);
3671   zTail = &zSql[(zTail - zCopy)];
3672 
3673   assert(rc==SQLITE_OK || pStmt==0);
3674   Tcl_ResetResult(interp);
3675   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3676   if( rc==SQLITE_OK && zTail && objc>=5 ){
3677     if( bytes>=0 ){
3678       bytes = bytes - (int)(zTail-zSql);
3679     }
3680     Tcl_ObjSetVar2(interp, objv[4], 0, Tcl_NewStringObj(zTail, bytes), 0);
3681   }
3682   if( rc!=SQLITE_OK ){
3683     assert( pStmt==0 );
3684     sprintf(zBuf, "(%d) ", rc);
3685     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
3686     return TCL_ERROR;
3687   }
3688 
3689   if( pStmt ){
3690     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3691     Tcl_AppendResult(interp, zBuf, 0);
3692   }
3693   return TCL_OK;
3694 }
3695 
3696 /*
3697 ** Usage: sqlite3_prepare_tkt3134 DB
3698 **
3699 ** Generate a prepared statement for a zero-byte string as a test
3700 ** for ticket #3134.  The string should be preceded by a zero byte.
3701 */
3702 static int test_prepare_tkt3134(
3703   void * clientData,
3704   Tcl_Interp *interp,
3705   int objc,
3706   Tcl_Obj *CONST objv[]
3707 ){
3708   sqlite3 *db;
3709   static const char zSql[] = "\000SELECT 1";
3710   sqlite3_stmt *pStmt = 0;
3711   char zBuf[50];
3712   int rc;
3713 
3714   if( objc!=2 ){
3715     Tcl_AppendResult(interp, "wrong # args: should be \"",
3716        Tcl_GetString(objv[0]), " DB sql bytes tailvar", 0);
3717     return TCL_ERROR;
3718   }
3719   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3720   rc = sqlite3_prepare_v2(db, &zSql[1], 0, &pStmt, 0);
3721   assert(rc==SQLITE_OK || pStmt==0);
3722   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3723   if( rc!=SQLITE_OK ){
3724     assert( pStmt==0 );
3725     sprintf(zBuf, "(%d) ", rc);
3726     Tcl_AppendResult(interp, zBuf, sqlite3_errmsg(db), 0);
3727     return TCL_ERROR;
3728   }
3729 
3730   if( pStmt ){
3731     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3732     Tcl_AppendResult(interp, zBuf, 0);
3733   }
3734   return TCL_OK;
3735 }
3736 
3737 /*
3738 ** Usage: sqlite3_prepare16 DB sql bytes tailvar
3739 **
3740 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
3741 ** database handle <DB>. The parameter <tailval> is the name of a global
3742 ** variable that is set to the unused portion of <sql> (if any). A
3743 ** STMT handle is returned.
3744 */
3745 static int test_prepare16(
3746   void * clientData,
3747   Tcl_Interp *interp,
3748   int objc,
3749   Tcl_Obj *CONST objv[]
3750 ){
3751 #ifndef SQLITE_OMIT_UTF16
3752   sqlite3 *db;
3753   const void *zSql;
3754   const void *zTail = 0;
3755   Tcl_Obj *pTail = 0;
3756   sqlite3_stmt *pStmt = 0;
3757   char zBuf[50];
3758   int rc;
3759   int bytes;                /* The integer specified as arg 3 */
3760   int objlen;               /* The byte-array length of arg 2 */
3761 
3762   if( objc!=5 && objc!=4 ){
3763     Tcl_AppendResult(interp, "wrong # args: should be \"",
3764        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
3765     return TCL_ERROR;
3766   }
3767   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3768   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
3769   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
3770 
3771   rc = sqlite3_prepare16(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
3772   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3773   if( rc ){
3774     return TCL_ERROR;
3775   }
3776 
3777   if( objc>=5 ){
3778     if( zTail ){
3779       objlen = objlen - (int)((u8 *)zTail-(u8 *)zSql);
3780     }else{
3781       objlen = 0;
3782     }
3783     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
3784     Tcl_IncrRefCount(pTail);
3785     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
3786     Tcl_DecrRefCount(pTail);
3787   }
3788 
3789   if( pStmt ){
3790     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3791   }
3792   Tcl_AppendResult(interp, zBuf, 0);
3793 #endif /* SQLITE_OMIT_UTF16 */
3794   return TCL_OK;
3795 }
3796 
3797 /*
3798 ** Usage: sqlite3_prepare16_v2 DB sql bytes ?tailvar?
3799 **
3800 ** Compile up to <bytes> bytes of the supplied SQL string <sql> using
3801 ** database handle <DB>. The parameter <tailval> is the name of a global
3802 ** variable that is set to the unused portion of <sql> (if any). A
3803 ** STMT handle is returned.
3804 */
3805 static int test_prepare16_v2(
3806   void * clientData,
3807   Tcl_Interp *interp,
3808   int objc,
3809   Tcl_Obj *CONST objv[]
3810 ){
3811 #ifndef SQLITE_OMIT_UTF16
3812   sqlite3 *db;
3813   const void *zSql;
3814   const void *zTail = 0;
3815   Tcl_Obj *pTail = 0;
3816   sqlite3_stmt *pStmt = 0;
3817   char zBuf[50];
3818   int rc;
3819   int bytes;                /* The integer specified as arg 3 */
3820   int objlen;               /* The byte-array length of arg 2 */
3821 
3822   if( objc!=5 && objc!=4 ){
3823     Tcl_AppendResult(interp, "wrong # args: should be \"",
3824        Tcl_GetString(objv[0]), " DB sql bytes ?tailvar?", 0);
3825     return TCL_ERROR;
3826   }
3827   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
3828   zSql = Tcl_GetByteArrayFromObj(objv[2], &objlen);
3829   if( Tcl_GetIntFromObj(interp, objv[3], &bytes) ) return TCL_ERROR;
3830 
3831   rc = sqlite3_prepare16_v2(db, zSql, bytes, &pStmt, objc>=5 ? &zTail : 0);
3832   if( sqlite3TestErrCode(interp, db, rc) ) return TCL_ERROR;
3833   if( rc ){
3834     return TCL_ERROR;
3835   }
3836 
3837   if( objc>=5 ){
3838     if( zTail ){
3839       objlen = objlen - (int)((u8 *)zTail-(u8 *)zSql);
3840     }else{
3841       objlen = 0;
3842     }
3843     pTail = Tcl_NewByteArrayObj((u8 *)zTail, objlen);
3844     Tcl_IncrRefCount(pTail);
3845     Tcl_ObjSetVar2(interp, objv[4], 0, pTail, 0);
3846     Tcl_DecrRefCount(pTail);
3847   }
3848 
3849   if( pStmt ){
3850     if( sqlite3TestMakePointerStr(interp, zBuf, pStmt) ) return TCL_ERROR;
3851   }
3852   Tcl_AppendResult(interp, zBuf, 0);
3853 #endif /* SQLITE_OMIT_UTF16 */
3854   return TCL_OK;
3855 }
3856 
3857 /*
3858 ** Usage: sqlite3_open filename ?options-list?
3859 */
3860 static int test_open(
3861   void * clientData,
3862   Tcl_Interp *interp,
3863   int objc,
3864   Tcl_Obj *CONST objv[]
3865 ){
3866   const char *zFilename;
3867   sqlite3 *db;
3868   char zBuf[100];
3869 
3870   if( objc!=3 && objc!=2 && objc!=1 ){
3871     Tcl_AppendResult(interp, "wrong # args: should be \"",
3872        Tcl_GetString(objv[0]), " filename options-list", 0);
3873     return TCL_ERROR;
3874   }
3875 
3876   zFilename = objc>1 ? Tcl_GetString(objv[1]) : 0;
3877   sqlite3_open(zFilename, &db);
3878 
3879   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
3880   Tcl_AppendResult(interp, zBuf, 0);
3881   return TCL_OK;
3882 }
3883 
3884 /*
3885 ** Usage: sqlite3_open_v2 FILENAME FLAGS VFS
3886 */
3887 static int test_open_v2(
3888   void * clientData,
3889   Tcl_Interp *interp,
3890   int objc,
3891   Tcl_Obj *CONST objv[]
3892 ){
3893   const char *zFilename;
3894   const char *zVfs;
3895   int flags = 0;
3896   sqlite3 *db;
3897   int rc;
3898   char zBuf[100];
3899 
3900   int nFlag;
3901   Tcl_Obj **apFlag;
3902   int i;
3903 
3904   if( objc!=4 ){
3905     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME FLAGS VFS");
3906     return TCL_ERROR;
3907   }
3908   zFilename = Tcl_GetString(objv[1]);
3909   zVfs = Tcl_GetString(objv[3]);
3910   if( zVfs[0]==0x00 ) zVfs = 0;
3911 
3912   rc = Tcl_ListObjGetElements(interp, objv[2], &nFlag, &apFlag);
3913   if( rc!=TCL_OK ) return rc;
3914   for(i=0; i<nFlag; i++){
3915     int iFlag;
3916     struct OpenFlag {
3917       const char *zFlag;
3918       int flag;
3919     } aFlag[] = {
3920       { "SQLITE_OPEN_READONLY", SQLITE_OPEN_READONLY },
3921       { "SQLITE_OPEN_READWRITE", SQLITE_OPEN_READWRITE },
3922       { "SQLITE_OPEN_CREATE", SQLITE_OPEN_CREATE },
3923       { "SQLITE_OPEN_DELETEONCLOSE", SQLITE_OPEN_DELETEONCLOSE },
3924       { "SQLITE_OPEN_EXCLUSIVE", SQLITE_OPEN_EXCLUSIVE },
3925       { "SQLITE_OPEN_AUTOPROXY", SQLITE_OPEN_AUTOPROXY },
3926       { "SQLITE_OPEN_MAIN_DB", SQLITE_OPEN_MAIN_DB },
3927       { "SQLITE_OPEN_TEMP_DB", SQLITE_OPEN_TEMP_DB },
3928       { "SQLITE_OPEN_TRANSIENT_DB", SQLITE_OPEN_TRANSIENT_DB },
3929       { "SQLITE_OPEN_MAIN_JOURNAL", SQLITE_OPEN_MAIN_JOURNAL },
3930       { "SQLITE_OPEN_TEMP_JOURNAL", SQLITE_OPEN_TEMP_JOURNAL },
3931       { "SQLITE_OPEN_SUBJOURNAL", SQLITE_OPEN_SUBJOURNAL },
3932       { "SQLITE_OPEN_MASTER_JOURNAL", SQLITE_OPEN_MASTER_JOURNAL },
3933       { "SQLITE_OPEN_NOMUTEX", SQLITE_OPEN_NOMUTEX },
3934       { "SQLITE_OPEN_FULLMUTEX", SQLITE_OPEN_FULLMUTEX },
3935       { "SQLITE_OPEN_SHAREDCACHE", SQLITE_OPEN_SHAREDCACHE },
3936       { "SQLITE_OPEN_PRIVATECACHE", SQLITE_OPEN_PRIVATECACHE },
3937       { "SQLITE_OPEN_WAL", SQLITE_OPEN_WAL },
3938       { "SQLITE_OPEN_URI", SQLITE_OPEN_URI },
3939       { 0, 0 }
3940     };
3941     rc = Tcl_GetIndexFromObjStruct(interp, apFlag[i], aFlag, sizeof(aFlag[0]),
3942         "flag", 0, &iFlag
3943     );
3944     if( rc!=TCL_OK ) return rc;
3945     flags |= aFlag[iFlag].flag;
3946   }
3947 
3948   rc = sqlite3_open_v2(zFilename, &db, flags, zVfs);
3949   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
3950   Tcl_AppendResult(interp, zBuf, 0);
3951   return TCL_OK;
3952 }
3953 
3954 /*
3955 ** Usage: sqlite3_open16 filename options
3956 */
3957 static int test_open16(
3958   void * clientData,
3959   Tcl_Interp *interp,
3960   int objc,
3961   Tcl_Obj *CONST objv[]
3962 ){
3963 #ifndef SQLITE_OMIT_UTF16
3964   const void *zFilename;
3965   sqlite3 *db;
3966   char zBuf[100];
3967 
3968   if( objc!=3 ){
3969     Tcl_AppendResult(interp, "wrong # args: should be \"",
3970        Tcl_GetString(objv[0]), " filename options-list", 0);
3971     return TCL_ERROR;
3972   }
3973 
3974   zFilename = Tcl_GetByteArrayFromObj(objv[1], 0);
3975   sqlite3_open16(zFilename, &db);
3976 
3977   if( sqlite3TestMakePointerStr(interp, zBuf, db) ) return TCL_ERROR;
3978   Tcl_AppendResult(interp, zBuf, 0);
3979 #endif /* SQLITE_OMIT_UTF16 */
3980   return TCL_OK;
3981 }
3982 
3983 /*
3984 ** Usage: sqlite3_complete16 <UTF-16 string>
3985 **
3986 ** Return 1 if the supplied argument is a complete SQL statement, or zero
3987 ** otherwise.
3988 */
3989 static int test_complete16(
3990   void * clientData,
3991   Tcl_Interp *interp,
3992   int objc,
3993   Tcl_Obj *CONST objv[]
3994 ){
3995 #if !defined(SQLITE_OMIT_COMPLETE) && !defined(SQLITE_OMIT_UTF16)
3996   char *zBuf;
3997 
3998   if( objc!=2 ){
3999     Tcl_WrongNumArgs(interp, 1, objv, "<utf-16 sql>");
4000     return TCL_ERROR;
4001   }
4002 
4003   zBuf = (char*)Tcl_GetByteArrayFromObj(objv[1], 0);
4004   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_complete16(zBuf)));
4005 #endif /* SQLITE_OMIT_COMPLETE && SQLITE_OMIT_UTF16 */
4006   return TCL_OK;
4007 }
4008 
4009 /*
4010 ** Usage: sqlite3_step STMT
4011 **
4012 ** Advance the statement to the next row.
4013 */
4014 static int test_step(
4015   void * clientData,
4016   Tcl_Interp *interp,
4017   int objc,
4018   Tcl_Obj *CONST objv[]
4019 ){
4020   sqlite3_stmt *pStmt;
4021   int rc;
4022 
4023   if( objc!=2 ){
4024     Tcl_AppendResult(interp, "wrong # args: should be \"",
4025        Tcl_GetString(objv[0]), " STMT", 0);
4026     return TCL_ERROR;
4027   }
4028 
4029   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4030   rc = sqlite3_step(pStmt);
4031 
4032   /* if( rc!=SQLITE_DONE && rc!=SQLITE_ROW ) return TCL_ERROR; */
4033   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
4034   return TCL_OK;
4035 }
4036 
4037 static int test_sql(
4038   void * clientData,
4039   Tcl_Interp *interp,
4040   int objc,
4041   Tcl_Obj *CONST objv[]
4042 ){
4043   sqlite3_stmt *pStmt;
4044 
4045   if( objc!=2 ){
4046     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
4047     return TCL_ERROR;
4048   }
4049 
4050   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4051   Tcl_SetResult(interp, (char *)sqlite3_sql(pStmt), TCL_VOLATILE);
4052   return TCL_OK;
4053 }
4054 
4055 /*
4056 ** Usage: sqlite3_column_count STMT
4057 **
4058 ** Return the number of columns returned by the sql statement STMT.
4059 */
4060 static int test_column_count(
4061   void * clientData,
4062   Tcl_Interp *interp,
4063   int objc,
4064   Tcl_Obj *CONST objv[]
4065 ){
4066   sqlite3_stmt *pStmt;
4067 
4068   if( objc!=2 ){
4069     Tcl_AppendResult(interp, "wrong # args: should be \"",
4070        Tcl_GetString(objv[0]), " STMT column", 0);
4071     return TCL_ERROR;
4072   }
4073 
4074   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4075 
4076   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_column_count(pStmt)));
4077   return TCL_OK;
4078 }
4079 
4080 /*
4081 ** Usage: sqlite3_column_type STMT column
4082 **
4083 ** Return the type of the data in column 'column' of the current row.
4084 */
4085 static int test_column_type(
4086   void * clientData,
4087   Tcl_Interp *interp,
4088   int objc,
4089   Tcl_Obj *CONST objv[]
4090 ){
4091   sqlite3_stmt *pStmt;
4092   int col;
4093   int tp;
4094 
4095   if( objc!=3 ){
4096     Tcl_AppendResult(interp, "wrong # args: should be \"",
4097        Tcl_GetString(objv[0]), " STMT column", 0);
4098     return TCL_ERROR;
4099   }
4100 
4101   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4102   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4103 
4104   tp = sqlite3_column_type(pStmt, col);
4105   switch( tp ){
4106     case SQLITE_INTEGER:
4107       Tcl_SetResult(interp, "INTEGER", TCL_STATIC);
4108       break;
4109     case SQLITE_NULL:
4110       Tcl_SetResult(interp, "NULL", TCL_STATIC);
4111       break;
4112     case SQLITE_FLOAT:
4113       Tcl_SetResult(interp, "FLOAT", TCL_STATIC);
4114       break;
4115     case SQLITE_TEXT:
4116       Tcl_SetResult(interp, "TEXT", TCL_STATIC);
4117       break;
4118     case SQLITE_BLOB:
4119       Tcl_SetResult(interp, "BLOB", TCL_STATIC);
4120       break;
4121     default:
4122       assert(0);
4123   }
4124 
4125   return TCL_OK;
4126 }
4127 
4128 /*
4129 ** Usage: sqlite3_column_int64 STMT column
4130 **
4131 ** Return the data in column 'column' of the current row cast as an
4132 ** wide (64-bit) integer.
4133 */
4134 static int test_column_int64(
4135   void * clientData,
4136   Tcl_Interp *interp,
4137   int objc,
4138   Tcl_Obj *CONST objv[]
4139 ){
4140   sqlite3_stmt *pStmt;
4141   int col;
4142   i64 iVal;
4143 
4144   if( objc!=3 ){
4145     Tcl_AppendResult(interp, "wrong # args: should be \"",
4146        Tcl_GetString(objv[0]), " STMT column", 0);
4147     return TCL_ERROR;
4148   }
4149 
4150   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4151   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4152 
4153   iVal = sqlite3_column_int64(pStmt, col);
4154   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(iVal));
4155   return TCL_OK;
4156 }
4157 
4158 /*
4159 ** Usage: sqlite3_column_blob STMT column
4160 */
4161 static int test_column_blob(
4162   void * clientData,
4163   Tcl_Interp *interp,
4164   int objc,
4165   Tcl_Obj *CONST objv[]
4166 ){
4167   sqlite3_stmt *pStmt;
4168   int col;
4169 
4170   int len;
4171   const void *pBlob;
4172 
4173   if( objc!=3 ){
4174     Tcl_AppendResult(interp, "wrong # args: should be \"",
4175        Tcl_GetString(objv[0]), " STMT column", 0);
4176     return TCL_ERROR;
4177   }
4178 
4179   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4180   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4181 
4182   len = sqlite3_column_bytes(pStmt, col);
4183   pBlob = sqlite3_column_blob(pStmt, col);
4184   Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(pBlob, len));
4185   return TCL_OK;
4186 }
4187 
4188 /*
4189 ** Usage: sqlite3_column_double STMT column
4190 **
4191 ** Return the data in column 'column' of the current row cast as a double.
4192 */
4193 static int test_column_double(
4194   void * clientData,
4195   Tcl_Interp *interp,
4196   int objc,
4197   Tcl_Obj *CONST objv[]
4198 ){
4199   sqlite3_stmt *pStmt;
4200   int col;
4201   double rVal;
4202 
4203   if( objc!=3 ){
4204     Tcl_AppendResult(interp, "wrong # args: should be \"",
4205        Tcl_GetString(objv[0]), " STMT column", 0);
4206     return TCL_ERROR;
4207   }
4208 
4209   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4210   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4211 
4212   rVal = sqlite3_column_double(pStmt, col);
4213   Tcl_SetObjResult(interp, Tcl_NewDoubleObj(rVal));
4214   return TCL_OK;
4215 }
4216 
4217 /*
4218 ** Usage: sqlite3_data_count STMT
4219 **
4220 ** Return the number of columns returned by the sql statement STMT.
4221 */
4222 static int test_data_count(
4223   void * clientData,
4224   Tcl_Interp *interp,
4225   int objc,
4226   Tcl_Obj *CONST objv[]
4227 ){
4228   sqlite3_stmt *pStmt;
4229 
4230   if( objc!=2 ){
4231     Tcl_AppendResult(interp, "wrong # args: should be \"",
4232        Tcl_GetString(objv[0]), " STMT column", 0);
4233     return TCL_ERROR;
4234   }
4235 
4236   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4237 
4238   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_data_count(pStmt)));
4239   return TCL_OK;
4240 }
4241 
4242 /*
4243 ** Usage: sqlite3_column_text STMT column
4244 **
4245 ** Usage: sqlite3_column_decltype STMT column
4246 **
4247 ** Usage: sqlite3_column_name STMT column
4248 */
4249 static int test_stmt_utf8(
4250   void * clientData,        /* Pointer to SQLite API function to be invoke */
4251   Tcl_Interp *interp,
4252   int objc,
4253   Tcl_Obj *CONST objv[]
4254 ){
4255   sqlite3_stmt *pStmt;
4256   int col;
4257   const char *(*xFunc)(sqlite3_stmt*, int);
4258   const char *zRet;
4259 
4260   xFunc = (const char *(*)(sqlite3_stmt*, int))clientData;
4261   if( objc!=3 ){
4262     Tcl_AppendResult(interp, "wrong # args: should be \"",
4263        Tcl_GetString(objv[0]), " STMT column", 0);
4264     return TCL_ERROR;
4265   }
4266 
4267   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4268   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4269   zRet = xFunc(pStmt, col);
4270   if( zRet ){
4271     Tcl_SetResult(interp, (char *)zRet, 0);
4272   }
4273   return TCL_OK;
4274 }
4275 
4276 static int test_global_recover(
4277   void * clientData,
4278   Tcl_Interp *interp,
4279   int objc,
4280   Tcl_Obj *CONST objv[]
4281 ){
4282 #ifndef SQLITE_OMIT_DEPRECATED
4283   int rc;
4284   if( objc!=1 ){
4285     Tcl_WrongNumArgs(interp, 1, objv, "");
4286     return TCL_ERROR;
4287   }
4288   rc = sqlite3_global_recover();
4289   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4290 #endif
4291   return TCL_OK;
4292 }
4293 
4294 /*
4295 ** Usage: sqlite3_column_text STMT column
4296 **
4297 ** Usage: sqlite3_column_decltype STMT column
4298 **
4299 ** Usage: sqlite3_column_name STMT column
4300 */
4301 static int test_stmt_utf16(
4302   void * clientData,     /* Pointer to SQLite API function to be invoked */
4303   Tcl_Interp *interp,
4304   int objc,
4305   Tcl_Obj *CONST objv[]
4306 ){
4307 #ifndef SQLITE_OMIT_UTF16
4308   sqlite3_stmt *pStmt;
4309   int col;
4310   Tcl_Obj *pRet;
4311   const void *zName16;
4312   const void *(*xFunc)(sqlite3_stmt*, int);
4313 
4314   xFunc = (const void *(*)(sqlite3_stmt*, int))clientData;
4315   if( objc!=3 ){
4316     Tcl_AppendResult(interp, "wrong # args: should be \"",
4317        Tcl_GetString(objv[0]), " STMT column", 0);
4318     return TCL_ERROR;
4319   }
4320 
4321   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4322   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4323 
4324   zName16 = xFunc(pStmt, col);
4325   if( zName16 ){
4326     int n;
4327     const char *z = zName16;
4328     for(n=0; z[n] || z[n+1]; n+=2){}
4329     pRet = Tcl_NewByteArrayObj(zName16, n+2);
4330     Tcl_SetObjResult(interp, pRet);
4331   }
4332 #endif /* SQLITE_OMIT_UTF16 */
4333 
4334   return TCL_OK;
4335 }
4336 
4337 /*
4338 ** Usage: sqlite3_column_int STMT column
4339 **
4340 ** Usage: sqlite3_column_bytes STMT column
4341 **
4342 ** Usage: sqlite3_column_bytes16 STMT column
4343 **
4344 */
4345 static int test_stmt_int(
4346   void * clientData,    /* Pointer to SQLite API function to be invoked */
4347   Tcl_Interp *interp,
4348   int objc,
4349   Tcl_Obj *CONST objv[]
4350 ){
4351   sqlite3_stmt *pStmt;
4352   int col;
4353   int (*xFunc)(sqlite3_stmt*, int);
4354 
4355   xFunc = (int (*)(sqlite3_stmt*, int))clientData;
4356   if( objc!=3 ){
4357     Tcl_AppendResult(interp, "wrong # args: should be \"",
4358        Tcl_GetString(objv[0]), " STMT column", 0);
4359     return TCL_ERROR;
4360   }
4361 
4362   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
4363   if( Tcl_GetIntFromObj(interp, objv[2], &col) ) return TCL_ERROR;
4364 
4365   Tcl_SetObjResult(interp, Tcl_NewIntObj(xFunc(pStmt, col)));
4366   return TCL_OK;
4367 }
4368 
4369 /*
4370 ** Usage:  sqlite_set_magic  DB  MAGIC-NUMBER
4371 **
4372 ** Set the db->magic value.  This is used to test error recovery logic.
4373 */
4374 static int sqlite_set_magic(
4375   void * clientData,
4376   Tcl_Interp *interp,
4377   int argc,
4378   char **argv
4379 ){
4380   sqlite3 *db;
4381   if( argc!=3 ){
4382     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4383          " DB MAGIC", 0);
4384     return TCL_ERROR;
4385   }
4386   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4387   if( strcmp(argv[2], "SQLITE_MAGIC_OPEN")==0 ){
4388     db->magic = SQLITE_MAGIC_OPEN;
4389   }else if( strcmp(argv[2], "SQLITE_MAGIC_CLOSED")==0 ){
4390     db->magic = SQLITE_MAGIC_CLOSED;
4391   }else if( strcmp(argv[2], "SQLITE_MAGIC_BUSY")==0 ){
4392     db->magic = SQLITE_MAGIC_BUSY;
4393   }else if( strcmp(argv[2], "SQLITE_MAGIC_ERROR")==0 ){
4394     db->magic = SQLITE_MAGIC_ERROR;
4395   }else if( Tcl_GetInt(interp, argv[2], (int*)&db->magic) ){
4396     return TCL_ERROR;
4397   }
4398   return TCL_OK;
4399 }
4400 
4401 /*
4402 ** Usage:  sqlite3_interrupt  DB
4403 **
4404 ** Trigger an interrupt on DB
4405 */
4406 static int test_interrupt(
4407   void * clientData,
4408   Tcl_Interp *interp,
4409   int argc,
4410   char **argv
4411 ){
4412   sqlite3 *db;
4413   if( argc!=2 ){
4414     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], " DB", 0);
4415     return TCL_ERROR;
4416   }
4417   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4418   sqlite3_interrupt(db);
4419   return TCL_OK;
4420 }
4421 
4422 static u8 *sqlite3_stack_baseline = 0;
4423 
4424 /*
4425 ** Fill the stack with a known bitpattern.
4426 */
4427 static void prepStack(void){
4428   int i;
4429   u32 bigBuf[65536];
4430   for(i=0; i<sizeof(bigBuf)/sizeof(bigBuf[0]); i++) bigBuf[i] = 0xdeadbeef;
4431   sqlite3_stack_baseline = (u8*)&bigBuf[65536];
4432 }
4433 
4434 /*
4435 ** Get the current stack depth.  Used for debugging only.
4436 */
4437 u64 sqlite3StackDepth(void){
4438   u8 x;
4439   return (u64)(sqlite3_stack_baseline - &x);
4440 }
4441 
4442 /*
4443 ** Usage:  sqlite3_stack_used DB SQL
4444 **
4445 ** Try to measure the amount of stack space used by a call to sqlite3_exec
4446 */
4447 static int test_stack_used(
4448   void * clientData,
4449   Tcl_Interp *interp,
4450   int argc,
4451   char **argv
4452 ){
4453   sqlite3 *db;
4454   int i;
4455   if( argc!=3 ){
4456     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4457         " DB SQL", 0);
4458     return TCL_ERROR;
4459   }
4460   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4461   prepStack();
4462   (void)sqlite3_exec(db, argv[2], 0, 0, 0);
4463   for(i=65535; i>=0 && ((u32*)sqlite3_stack_baseline)[-i]==0xdeadbeef; i--){}
4464   Tcl_SetObjResult(interp, Tcl_NewIntObj(i*4));
4465   return TCL_OK;
4466 }
4467 
4468 /*
4469 ** Usage: sqlite_delete_function DB function-name
4470 **
4471 ** Delete the user function 'function-name' from database handle DB. It
4472 ** is assumed that the user function was created as UTF8, any number of
4473 ** arguments (the way the TCL interface does it).
4474 */
4475 static int delete_function(
4476   void * clientData,
4477   Tcl_Interp *interp,
4478   int argc,
4479   char **argv
4480 ){
4481   int rc;
4482   sqlite3 *db;
4483   if( argc!=3 ){
4484     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4485         " DB function-name", 0);
4486     return TCL_ERROR;
4487   }
4488   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4489   rc = sqlite3_create_function(db, argv[2], -1, SQLITE_UTF8, 0, 0, 0, 0);
4490   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4491   return TCL_OK;
4492 }
4493 
4494 /*
4495 ** Usage: sqlite_delete_collation DB collation-name
4496 **
4497 ** Delete the collation sequence 'collation-name' from database handle
4498 ** DB. It is assumed that the collation sequence was created as UTF8 (the
4499 ** way the TCL interface does it).
4500 */
4501 static int delete_collation(
4502   void * clientData,
4503   Tcl_Interp *interp,
4504   int argc,
4505   char **argv
4506 ){
4507   int rc;
4508   sqlite3 *db;
4509   if( argc!=3 ){
4510     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4511         " DB function-name", 0);
4512     return TCL_ERROR;
4513   }
4514   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4515   rc = sqlite3_create_collation(db, argv[2], SQLITE_UTF8, 0, 0);
4516   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
4517   return TCL_OK;
4518 }
4519 
4520 /*
4521 ** Usage: sqlite3_get_autocommit DB
4522 **
4523 ** Return true if the database DB is currently in auto-commit mode.
4524 ** Return false if not.
4525 */
4526 static int get_autocommit(
4527   void * clientData,
4528   Tcl_Interp *interp,
4529   int argc,
4530   char **argv
4531 ){
4532   char zBuf[30];
4533   sqlite3 *db;
4534   if( argc!=2 ){
4535     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4536         " DB", 0);
4537     return TCL_ERROR;
4538   }
4539   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4540   sprintf(zBuf, "%d", sqlite3_get_autocommit(db));
4541   Tcl_AppendResult(interp, zBuf, 0);
4542   return TCL_OK;
4543 }
4544 
4545 /*
4546 ** Usage: sqlite3_busy_timeout DB MS
4547 **
4548 ** Set the busy timeout.  This is more easily done using the timeout
4549 ** method of the TCL interface.  But we need a way to test the case
4550 ** where it returns SQLITE_MISUSE.
4551 */
4552 static int test_busy_timeout(
4553   void * clientData,
4554   Tcl_Interp *interp,
4555   int argc,
4556   char **argv
4557 ){
4558   int rc, ms;
4559   sqlite3 *db;
4560   if( argc!=3 ){
4561     Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
4562         " DB", 0);
4563     return TCL_ERROR;
4564   }
4565   if( getDbPointer(interp, argv[1], &db) ) return TCL_ERROR;
4566   if( Tcl_GetInt(interp, argv[2], &ms) ) return TCL_ERROR;
4567   rc = sqlite3_busy_timeout(db, ms);
4568   Tcl_AppendResult(interp, sqlite3ErrName(rc), 0);
4569   return TCL_OK;
4570 }
4571 
4572 /*
4573 ** Usage:  tcl_variable_type VARIABLENAME
4574 **
4575 ** Return the name of the internal representation for the
4576 ** value of the given variable.
4577 */
4578 static int tcl_variable_type(
4579   void * clientData,
4580   Tcl_Interp *interp,
4581   int objc,
4582   Tcl_Obj *CONST objv[]
4583 ){
4584   Tcl_Obj *pVar;
4585   if( objc!=2 ){
4586     Tcl_WrongNumArgs(interp, 1, objv, "VARIABLE");
4587     return TCL_ERROR;
4588   }
4589   pVar = Tcl_GetVar2Ex(interp, Tcl_GetString(objv[1]), 0, TCL_LEAVE_ERR_MSG);
4590   if( pVar==0 ) return TCL_ERROR;
4591   if( pVar->typePtr ){
4592     Tcl_SetObjResult(interp, Tcl_NewStringObj(pVar->typePtr->name, -1));
4593   }
4594   return TCL_OK;
4595 }
4596 
4597 /*
4598 ** Usage:  sqlite3_release_memory ?N?
4599 **
4600 ** Attempt to release memory currently held but not actually required.
4601 ** The integer N is the number of bytes we are trying to release.  The
4602 ** return value is the amount of memory actually released.
4603 */
4604 static int test_release_memory(
4605   void * clientData,
4606   Tcl_Interp *interp,
4607   int objc,
4608   Tcl_Obj *CONST objv[]
4609 ){
4610 #if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) && !defined(SQLITE_OMIT_DISKIO)
4611   int N;
4612   int amt;
4613   if( objc!=1 && objc!=2 ){
4614     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
4615     return TCL_ERROR;
4616   }
4617   if( objc==2 ){
4618     if( Tcl_GetIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
4619   }else{
4620     N = -1;
4621   }
4622   amt = sqlite3_release_memory(N);
4623   Tcl_SetObjResult(interp, Tcl_NewIntObj(amt));
4624 #endif
4625   return TCL_OK;
4626 }
4627 
4628 
4629 /*
4630 ** Usage:  sqlite3_db_release_memory DB
4631 **
4632 ** Attempt to release memory currently held by database DB.  Return the
4633 ** result code (which in the current implementation is always zero).
4634 */
4635 static int test_db_release_memory(
4636   void * clientData,
4637   Tcl_Interp *interp,
4638   int objc,
4639   Tcl_Obj *CONST objv[]
4640 ){
4641   sqlite3 *db;
4642   int rc;
4643   if( objc!=2 ){
4644     Tcl_WrongNumArgs(interp, 1, objv, "DB");
4645     return TCL_ERROR;
4646   }
4647   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4648   rc = sqlite3_db_release_memory(db);
4649   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
4650   return TCL_OK;
4651 }
4652 
4653 /*
4654 ** Usage:  sqlite3_db_filename DB DBNAME
4655 **
4656 ** Return the name of a file associated with a database.
4657 */
4658 static int test_db_filename(
4659   void * clientData,
4660   Tcl_Interp *interp,
4661   int objc,
4662   Tcl_Obj *CONST objv[]
4663 ){
4664   sqlite3 *db;
4665   const char *zDbName;
4666   if( objc!=3 ){
4667     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
4668     return TCL_ERROR;
4669   }
4670   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4671   zDbName = Tcl_GetString(objv[2]);
4672   Tcl_AppendResult(interp, sqlite3_db_filename(db, zDbName), (void*)0);
4673   return TCL_OK;
4674 }
4675 
4676 /*
4677 ** Usage:  sqlite3_db_readonly DB DBNAME
4678 **
4679 ** Return 1 or 0 if DBNAME is readonly or not.  Return -1 if DBNAME does
4680 ** not exist.
4681 */
4682 static int test_db_readonly(
4683   void * clientData,
4684   Tcl_Interp *interp,
4685   int objc,
4686   Tcl_Obj *CONST objv[]
4687 ){
4688   sqlite3 *db;
4689   const char *zDbName;
4690   if( objc!=3 ){
4691     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME");
4692     return TCL_ERROR;
4693   }
4694   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4695   zDbName = Tcl_GetString(objv[2]);
4696   Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_db_readonly(db, zDbName)));
4697   return TCL_OK;
4698 }
4699 
4700 /*
4701 ** Usage:  sqlite3_soft_heap_limit ?N?
4702 **
4703 ** Query or set the soft heap limit for the current thread.  The
4704 ** limit is only changed if the N is present.  The previous limit
4705 ** is returned.
4706 */
4707 static int test_soft_heap_limit(
4708   void * clientData,
4709   Tcl_Interp *interp,
4710   int objc,
4711   Tcl_Obj *CONST objv[]
4712 ){
4713   sqlite3_int64 amt;
4714   Tcl_WideInt N = -1;
4715   if( objc!=1 && objc!=2 ){
4716     Tcl_WrongNumArgs(interp, 1, objv, "?N?");
4717     return TCL_ERROR;
4718   }
4719   if( objc==2 ){
4720     if( Tcl_GetWideIntFromObj(interp, objv[1], &N) ) return TCL_ERROR;
4721   }
4722   amt = sqlite3_soft_heap_limit64(N);
4723   Tcl_SetObjResult(interp, Tcl_NewWideIntObj(amt));
4724   return TCL_OK;
4725 }
4726 
4727 /*
4728 ** Usage:   sqlite3_thread_cleanup
4729 **
4730 ** Call the sqlite3_thread_cleanup API.
4731 */
4732 static int test_thread_cleanup(
4733   void * clientData,
4734   Tcl_Interp *interp,
4735   int objc,
4736   Tcl_Obj *CONST objv[]
4737 ){
4738 #ifndef SQLITE_OMIT_DEPRECATED
4739   sqlite3_thread_cleanup();
4740 #endif
4741   return TCL_OK;
4742 }
4743 
4744 /*
4745 ** Usage:   sqlite3_pager_refcounts  DB
4746 **
4747 ** Return a list of numbers which are the PagerRefcount for all
4748 ** pagers on each database connection.
4749 */
4750 static int test_pager_refcounts(
4751   void * clientData,
4752   Tcl_Interp *interp,
4753   int objc,
4754   Tcl_Obj *CONST objv[]
4755 ){
4756   sqlite3 *db;
4757   int i;
4758   int v, *a;
4759   Tcl_Obj *pResult;
4760 
4761   if( objc!=2 ){
4762     Tcl_AppendResult(interp, "wrong # args: should be \"",
4763         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
4764     return TCL_ERROR;
4765   }
4766   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
4767   pResult = Tcl_NewObj();
4768   for(i=0; i<db->nDb; i++){
4769     if( db->aDb[i].pBt==0 ){
4770       v = -1;
4771     }else{
4772       sqlite3_mutex_enter(db->mutex);
4773       a = sqlite3PagerStats(sqlite3BtreePager(db->aDb[i].pBt));
4774       v = a[0];
4775       sqlite3_mutex_leave(db->mutex);
4776     }
4777     Tcl_ListObjAppendElement(0, pResult, Tcl_NewIntObj(v));
4778   }
4779   Tcl_SetObjResult(interp, pResult);
4780   return TCL_OK;
4781 }
4782 
4783 
4784 /*
4785 ** tclcmd:   working_64bit_int
4786 **
4787 ** Some TCL builds (ex: cygwin) do not support 64-bit integers.  This
4788 ** leads to a number of test failures.  The present command checks the
4789 ** TCL build to see whether or not it supports 64-bit integers.  It
4790 ** returns TRUE if it does and FALSE if not.
4791 **
4792 ** This command is used to warn users that their TCL build is defective
4793 ** and that the errors they are seeing in the test scripts might be
4794 ** a result of their defective TCL rather than problems in SQLite.
4795 */
4796 static int working_64bit_int(
4797   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4798   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4799   int objc,              /* Number of arguments */
4800   Tcl_Obj *CONST objv[]  /* Command arguments */
4801 ){
4802   Tcl_Obj *pTestObj;
4803   int working = 0;
4804 
4805   pTestObj = Tcl_NewWideIntObj(1000000*(i64)1234567890);
4806   working = strcmp(Tcl_GetString(pTestObj), "1234567890000000")==0;
4807   Tcl_DecrRefCount(pTestObj);
4808   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(working));
4809   return TCL_OK;
4810 }
4811 
4812 
4813 /*
4814 ** tclcmd:   vfs_unlink_test
4815 **
4816 ** This TCL command unregisters the primary VFS and then registers
4817 ** it back again.  This is used to test the ability to register a
4818 ** VFS when none are previously registered, and the ability to
4819 ** unregister the only available VFS.  Ticket #2738
4820 */
4821 static int vfs_unlink_test(
4822   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4823   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4824   int objc,              /* Number of arguments */
4825   Tcl_Obj *CONST objv[]  /* Command arguments */
4826 ){
4827   int i;
4828   sqlite3_vfs *pMain;
4829   sqlite3_vfs *apVfs[20];
4830   sqlite3_vfs one, two;
4831 
4832   sqlite3_vfs_unregister(0);   /* Unregister of NULL is harmless */
4833   one.zName = "__one";
4834   two.zName = "__two";
4835 
4836   /* Calling sqlite3_vfs_register with 2nd argument of 0 does not
4837   ** change the default VFS
4838   */
4839   pMain = sqlite3_vfs_find(0);
4840   sqlite3_vfs_register(&one, 0);
4841   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
4842   sqlite3_vfs_register(&two, 0);
4843   assert( pMain==0 || pMain==sqlite3_vfs_find(0) );
4844 
4845   /* We can find a VFS by its name */
4846   assert( sqlite3_vfs_find("__one")==&one );
4847   assert( sqlite3_vfs_find("__two")==&two );
4848 
4849   /* Calling sqlite_vfs_register with non-zero second parameter changes the
4850   ** default VFS, even if the 1st parameter is an existig VFS that is
4851   ** previously registered as the non-default.
4852   */
4853   sqlite3_vfs_register(&one, 1);
4854   assert( sqlite3_vfs_find("__one")==&one );
4855   assert( sqlite3_vfs_find("__two")==&two );
4856   assert( sqlite3_vfs_find(0)==&one );
4857   sqlite3_vfs_register(&two, 1);
4858   assert( sqlite3_vfs_find("__one")==&one );
4859   assert( sqlite3_vfs_find("__two")==&two );
4860   assert( sqlite3_vfs_find(0)==&two );
4861   if( pMain ){
4862     sqlite3_vfs_register(pMain, 1);
4863     assert( sqlite3_vfs_find("__one")==&one );
4864     assert( sqlite3_vfs_find("__two")==&two );
4865     assert( sqlite3_vfs_find(0)==pMain );
4866   }
4867 
4868   /* Unlink the default VFS.  Repeat until there are no more VFSes
4869   ** registered.
4870   */
4871   for(i=0; i<sizeof(apVfs)/sizeof(apVfs[0]); i++){
4872     apVfs[i] = sqlite3_vfs_find(0);
4873     if( apVfs[i] ){
4874       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
4875       sqlite3_vfs_unregister(apVfs[i]);
4876       assert( 0==sqlite3_vfs_find(apVfs[i]->zName) );
4877     }
4878   }
4879   assert( 0==sqlite3_vfs_find(0) );
4880 
4881   /* Register the main VFS as non-default (will be made default, since
4882   ** it'll be the only one in existence).
4883   */
4884   sqlite3_vfs_register(pMain, 0);
4885   assert( sqlite3_vfs_find(0)==pMain );
4886 
4887   /* Un-register the main VFS again to restore an empty VFS list */
4888   sqlite3_vfs_unregister(pMain);
4889   assert( 0==sqlite3_vfs_find(0) );
4890 
4891   /* Relink all VFSes in reverse order. */
4892   for(i=sizeof(apVfs)/sizeof(apVfs[0])-1; i>=0; i--){
4893     if( apVfs[i] ){
4894       sqlite3_vfs_register(apVfs[i], 1);
4895       assert( apVfs[i]==sqlite3_vfs_find(0) );
4896       assert( apVfs[i]==sqlite3_vfs_find(apVfs[i]->zName) );
4897     }
4898   }
4899 
4900   /* Unregister out sample VFSes. */
4901   sqlite3_vfs_unregister(&one);
4902   sqlite3_vfs_unregister(&two);
4903 
4904   /* Unregistering a VFS that is not currently registered is harmless */
4905   sqlite3_vfs_unregister(&one);
4906   sqlite3_vfs_unregister(&two);
4907   assert( sqlite3_vfs_find("__one")==0 );
4908   assert( sqlite3_vfs_find("__two")==0 );
4909 
4910   /* We should be left with the original default VFS back as the
4911   ** original */
4912   assert( sqlite3_vfs_find(0)==pMain );
4913 
4914   return TCL_OK;
4915 }
4916 
4917 /*
4918 ** tclcmd:   vfs_initfail_test
4919 **
4920 ** This TCL command attempts to vfs_find and vfs_register when the
4921 ** sqlite3_initialize() interface is failing.  All calls should fail.
4922 */
4923 static int vfs_initfail_test(
4924   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4925   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4926   int objc,              /* Number of arguments */
4927   Tcl_Obj *CONST objv[]  /* Command arguments */
4928 ){
4929   sqlite3_vfs one;
4930   one.zName = "__one";
4931 
4932   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
4933   sqlite3_vfs_register(&one, 0);
4934   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
4935   sqlite3_vfs_register(&one, 1);
4936   if( sqlite3_vfs_find(0) ) return TCL_ERROR;
4937   return TCL_OK;
4938 }
4939 
4940 /*
4941 ** Saved VFSes
4942 */
4943 static sqlite3_vfs *apVfs[20];
4944 static int nVfs = 0;
4945 
4946 /*
4947 ** tclcmd:   vfs_unregister_all
4948 **
4949 ** Unregister all VFSes.
4950 */
4951 static int vfs_unregister_all(
4952   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4953   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4954   int objc,              /* Number of arguments */
4955   Tcl_Obj *CONST objv[]  /* Command arguments */
4956 ){
4957   int i;
4958   for(i=0; i<ArraySize(apVfs); i++){
4959     apVfs[i] = sqlite3_vfs_find(0);
4960     if( apVfs[i]==0 ) break;
4961     sqlite3_vfs_unregister(apVfs[i]);
4962   }
4963   nVfs = i;
4964   return TCL_OK;
4965 }
4966 /*
4967 ** tclcmd:   vfs_reregister_all
4968 **
4969 ** Restore all VFSes that were removed using vfs_unregister_all
4970 */
4971 static int vfs_reregister_all(
4972   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4973   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4974   int objc,              /* Number of arguments */
4975   Tcl_Obj *CONST objv[]  /* Command arguments */
4976 ){
4977   int i;
4978   for(i=0; i<nVfs; i++){
4979     sqlite3_vfs_register(apVfs[i], i==0);
4980   }
4981   return TCL_OK;
4982 }
4983 
4984 
4985 /*
4986 ** tclcmd:   file_control_test DB
4987 **
4988 ** This TCL command runs the sqlite3_file_control interface and
4989 ** verifies correct operation of the same.
4990 */
4991 static int file_control_test(
4992   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
4993   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
4994   int objc,              /* Number of arguments */
4995   Tcl_Obj *CONST objv[]  /* Command arguments */
4996 ){
4997   int iArg = 0;
4998   sqlite3 *db;
4999   int rc;
5000 
5001   if( objc!=2 ){
5002     Tcl_AppendResult(interp, "wrong # args: should be \"",
5003         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5004     return TCL_ERROR;
5005   }
5006   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5007   rc = sqlite3_file_control(db, 0, 0, &iArg);
5008   assert( rc==SQLITE_NOTFOUND );
5009   rc = sqlite3_file_control(db, "notadatabase", SQLITE_FCNTL_LOCKSTATE, &iArg);
5010   assert( rc==SQLITE_ERROR );
5011   rc = sqlite3_file_control(db, "main", -1, &iArg);
5012   assert( rc==SQLITE_NOTFOUND );
5013   rc = sqlite3_file_control(db, "temp", -1, &iArg);
5014   assert( rc==SQLITE_NOTFOUND || rc==SQLITE_ERROR );
5015 
5016   return TCL_OK;
5017 }
5018 
5019 
5020 /*
5021 ** tclcmd:   file_control_lasterrno_test DB
5022 **
5023 ** This TCL command runs the sqlite3_file_control interface and
5024 ** verifies correct operation of the SQLITE_LAST_ERRNO verb.
5025 */
5026 static int file_control_lasterrno_test(
5027   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5028   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5029   int objc,              /* Number of arguments */
5030   Tcl_Obj *CONST objv[]  /* Command arguments */
5031 ){
5032   int iArg = 0;
5033   sqlite3 *db;
5034   int rc;
5035 
5036   if( objc!=2 ){
5037     Tcl_AppendResult(interp, "wrong # args: should be \"",
5038         Tcl_GetStringFromObj(objv[0], 0), " DB", 0);
5039     return TCL_ERROR;
5040   }
5041   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5042     return TCL_ERROR;
5043   }
5044   rc = sqlite3_file_control(db, NULL, SQLITE_LAST_ERRNO, &iArg);
5045   if( rc ){
5046     Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5047     return TCL_ERROR;
5048   }
5049   if( iArg!=0 ) {
5050     Tcl_AppendResult(interp, "Unexpected non-zero errno: ",
5051                      Tcl_GetStringFromObj(Tcl_NewIntObj(iArg), 0), " ", 0);
5052     return TCL_ERROR;
5053   }
5054   return TCL_OK;
5055 }
5056 
5057 /*
5058 ** tclcmd:   file_control_chunksize_test DB DBNAME SIZE
5059 **
5060 ** This TCL command runs the sqlite3_file_control interface and
5061 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
5062 ** SQLITE_SET_LOCKPROXYFILE verbs.
5063 */
5064 static int file_control_chunksize_test(
5065   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5066   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5067   int objc,              /* Number of arguments */
5068   Tcl_Obj *CONST objv[]  /* Command arguments */
5069 ){
5070   int nSize;                      /* New chunk size */
5071   char *zDb;                      /* Db name ("main", "temp" etc.) */
5072   sqlite3 *db;                    /* Database handle */
5073   int rc;                         /* file_control() return code */
5074 
5075   if( objc!=4 ){
5076     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SIZE");
5077     return TCL_ERROR;
5078   }
5079   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5080    || Tcl_GetIntFromObj(interp, objv[3], &nSize)
5081   ){
5082    return TCL_ERROR;
5083   }
5084   zDb = Tcl_GetString(objv[2]);
5085   if( zDb[0]=='\0' ) zDb = NULL;
5086 
5087   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_CHUNK_SIZE, (void *)&nSize);
5088   if( rc ){
5089     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5090     return TCL_ERROR;
5091   }
5092   return TCL_OK;
5093 }
5094 
5095 /*
5096 ** tclcmd:   file_control_sizehint_test DB DBNAME SIZE
5097 **
5098 ** This TCL command runs the sqlite3_file_control interface
5099 ** with SQLITE_FCNTL_SIZE_HINT
5100 */
5101 static int file_control_sizehint_test(
5102   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5103   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5104   int objc,              /* Number of arguments */
5105   Tcl_Obj *CONST objv[]  /* Command arguments */
5106 ){
5107   Tcl_WideInt nSize;              /* Hinted size */
5108   char *zDb;                      /* Db name ("main", "temp" etc.) */
5109   sqlite3 *db;                    /* Database handle */
5110   int rc;                         /* file_control() return code */
5111 
5112   if( objc!=4 ){
5113     Tcl_WrongNumArgs(interp, 1, objv, "DB DBNAME SIZE");
5114     return TCL_ERROR;
5115   }
5116   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5117    || Tcl_GetWideIntFromObj(interp, objv[3], &nSize)
5118   ){
5119    return TCL_ERROR;
5120   }
5121   zDb = Tcl_GetString(objv[2]);
5122   if( zDb[0]=='\0' ) zDb = NULL;
5123 
5124   rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_SIZE_HINT, (void *)&nSize);
5125   if( rc ){
5126     Tcl_SetResult(interp, (char *)sqlite3ErrName(rc), TCL_STATIC);
5127     return TCL_ERROR;
5128   }
5129   return TCL_OK;
5130 }
5131 
5132 /*
5133 ** tclcmd:   file_control_lockproxy_test DB PWD
5134 **
5135 ** This TCL command runs the sqlite3_file_control interface and
5136 ** verifies correct operation of the SQLITE_GET_LOCKPROXYFILE and
5137 ** SQLITE_SET_LOCKPROXYFILE verbs.
5138 */
5139 static int file_control_lockproxy_test(
5140   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5141   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5142   int objc,              /* Number of arguments */
5143   Tcl_Obj *CONST objv[]  /* Command arguments */
5144 ){
5145   sqlite3 *db;
5146 
5147   if( objc!=3 ){
5148     Tcl_AppendResult(interp, "wrong # args: should be \"",
5149                      Tcl_GetStringFromObj(objv[0], 0), " DB PWD", 0);
5150     return TCL_ERROR;
5151   }
5152   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5153    return TCL_ERROR;
5154   }
5155 
5156 #if !defined(SQLITE_ENABLE_LOCKING_STYLE)
5157 #  if defined(__APPLE__)
5158 #    define SQLITE_ENABLE_LOCKING_STYLE 1
5159 #  else
5160 #    define SQLITE_ENABLE_LOCKING_STYLE 0
5161 #  endif
5162 #endif
5163 #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__)
5164   {
5165     char *testPath;
5166     int rc;
5167     int nPwd;
5168     const char *zPwd;
5169     char proxyPath[400];
5170 
5171     zPwd = Tcl_GetStringFromObj(objv[2], &nPwd);
5172     if( sizeof(proxyPath)<nPwd+20 ){
5173       Tcl_AppendResult(interp, "PWD too big", (void*)0);
5174       return TCL_ERROR;
5175     }
5176     sprintf(proxyPath, "%s/test.proxy", zPwd);
5177     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
5178     if( rc ){
5179       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5180       return TCL_ERROR;
5181     }
5182     rc = sqlite3_file_control(db, NULL, SQLITE_GET_LOCKPROXYFILE, &testPath);
5183     if( strncmp(proxyPath,testPath,11) ){
5184       Tcl_AppendResult(interp, "Lock proxy file did not match the "
5185                                "previously assigned value", 0);
5186       return TCL_ERROR;
5187     }
5188     if( rc ){
5189       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5190       return TCL_ERROR;
5191     }
5192     rc = sqlite3_file_control(db, NULL, SQLITE_SET_LOCKPROXYFILE, proxyPath);
5193     if( rc ){
5194       Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5195       return TCL_ERROR;
5196     }
5197   }
5198 #endif
5199   return TCL_OK;
5200 }
5201 
5202 #if SQLITE_OS_WIN
5203 /*
5204 ** tclcmd:   file_control_win32_av_retry DB  NRETRY  DELAY
5205 **
5206 ** This TCL command runs the sqlite3_file_control interface with
5207 ** the SQLITE_FCNTL_WIN32_AV_RETRY opcode.
5208 */
5209 static int file_control_win32_av_retry(
5210   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5211   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5212   int objc,              /* Number of arguments */
5213   Tcl_Obj *CONST objv[]  /* Command arguments */
5214 ){
5215   sqlite3 *db;
5216   int rc;
5217   int a[2];
5218   char z[100];
5219 
5220   if( objc!=4 ){
5221     Tcl_AppendResult(interp, "wrong # args: should be \"",
5222         Tcl_GetStringFromObj(objv[0], 0), " DB NRETRY DELAY", 0);
5223     return TCL_ERROR;
5224   }
5225   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5226     return TCL_ERROR;
5227   }
5228   if( Tcl_GetIntFromObj(interp, objv[2], &a[0]) ) return TCL_ERROR;
5229   if( Tcl_GetIntFromObj(interp, objv[3], &a[1]) ) return TCL_ERROR;
5230   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_AV_RETRY, (void*)a);
5231   sqlite3_snprintf(sizeof(z), z, "%d %d %d", rc, a[0], a[1]);
5232   Tcl_AppendResult(interp, z, (char*)0);
5233   return TCL_OK;
5234 }
5235 
5236 /*
5237 ** tclcmd:   file_control_win32_set_handle DB HANDLE
5238 **
5239 ** This TCL command runs the sqlite3_file_control interface with
5240 ** the SQLITE_FCNTL_WIN32_SET_HANDLE opcode.
5241 */
5242 static int file_control_win32_set_handle(
5243   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5244   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5245   int objc,              /* Number of arguments */
5246   Tcl_Obj *CONST objv[]  /* Command arguments */
5247 ){
5248   sqlite3 *db;
5249   int rc;
5250   HANDLE hFile = NULL;
5251   char z[100];
5252 
5253   if( objc!=3 ){
5254     Tcl_AppendResult(interp, "wrong # args: should be \"",
5255         Tcl_GetStringFromObj(objv[0], 0), " DB HANDLE", 0);
5256     return TCL_ERROR;
5257   }
5258   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5259     return TCL_ERROR;
5260   }
5261   if( getWin32Handle(interp, Tcl_GetString(objv[2]), &hFile) ){
5262     return TCL_ERROR;
5263   }
5264   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_WIN32_SET_HANDLE,
5265                             (void*)&hFile);
5266   sqlite3_snprintf(sizeof(z), z, "%d %p", rc, (void*)hFile);
5267   Tcl_AppendResult(interp, z, (char*)0);
5268   return TCL_OK;
5269 }
5270 #endif
5271 
5272 /*
5273 ** tclcmd:   file_control_persist_wal DB PERSIST-FLAG
5274 **
5275 ** This TCL command runs the sqlite3_file_control interface with
5276 ** the SQLITE_FCNTL_PERSIST_WAL opcode.
5277 */
5278 static int file_control_persist_wal(
5279   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5280   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5281   int objc,              /* Number of arguments */
5282   Tcl_Obj *CONST objv[]  /* Command arguments */
5283 ){
5284   sqlite3 *db;
5285   int rc;
5286   int bPersist;
5287   char z[100];
5288 
5289   if( objc!=3 ){
5290     Tcl_AppendResult(interp, "wrong # args: should be \"",
5291         Tcl_GetStringFromObj(objv[0], 0), " DB FLAG", 0);
5292     return TCL_ERROR;
5293   }
5294   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5295     return TCL_ERROR;
5296   }
5297   if( Tcl_GetIntFromObj(interp, objv[2], &bPersist) ) return TCL_ERROR;
5298   rc = sqlite3_file_control(db, NULL, SQLITE_FCNTL_PERSIST_WAL, (void*)&bPersist);
5299   sqlite3_snprintf(sizeof(z), z, "%d %d", rc, bPersist);
5300   Tcl_AppendResult(interp, z, (char*)0);
5301   return TCL_OK;
5302 }
5303 
5304 /*
5305 ** tclcmd:   file_control_powersafe_overwrite DB PSOW-FLAG
5306 **
5307 ** This TCL command runs the sqlite3_file_control interface with
5308 ** the SQLITE_FCNTL_POWERSAFE_OVERWRITE opcode.
5309 */
5310 static int file_control_powersafe_overwrite(
5311   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5312   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5313   int objc,              /* Number of arguments */
5314   Tcl_Obj *CONST objv[]  /* Command arguments */
5315 ){
5316   sqlite3 *db;
5317   int rc;
5318   int b;
5319   char z[100];
5320 
5321   if( objc!=3 ){
5322     Tcl_AppendResult(interp, "wrong # args: should be \"",
5323         Tcl_GetStringFromObj(objv[0], 0), " DB FLAG", 0);
5324     return TCL_ERROR;
5325   }
5326   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5327     return TCL_ERROR;
5328   }
5329   if( Tcl_GetIntFromObj(interp, objv[2], &b) ) return TCL_ERROR;
5330   rc = sqlite3_file_control(db,NULL,SQLITE_FCNTL_POWERSAFE_OVERWRITE,(void*)&b);
5331   sqlite3_snprintf(sizeof(z), z, "%d %d", rc, b);
5332   Tcl_AppendResult(interp, z, (char*)0);
5333   return TCL_OK;
5334 }
5335 
5336 
5337 /*
5338 ** tclcmd:   file_control_vfsname DB ?AUXDB?
5339 **
5340 ** Return a string that describes the stack of VFSes.
5341 */
5342 static int file_control_vfsname(
5343   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5344   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5345   int objc,              /* Number of arguments */
5346   Tcl_Obj *CONST objv[]  /* Command arguments */
5347 ){
5348   sqlite3 *db;
5349   const char *zDbName = "main";
5350   char *zVfsName = 0;
5351 
5352   if( objc!=2 && objc!=3 ){
5353     Tcl_AppendResult(interp, "wrong # args: should be \"",
5354         Tcl_GetStringFromObj(objv[0], 0), " DB ?AUXDB?", 0);
5355     return TCL_ERROR;
5356   }
5357   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5358     return TCL_ERROR;
5359   }
5360   if( objc==3 ){
5361     zDbName = Tcl_GetString(objv[2]);
5362   }
5363   sqlite3_file_control(db, zDbName, SQLITE_FCNTL_VFSNAME,(void*)&zVfsName);
5364   Tcl_AppendResult(interp, zVfsName, (char*)0);
5365   sqlite3_free(zVfsName);
5366   return TCL_OK;
5367 }
5368 
5369 /*
5370 ** tclcmd:   file_control_tempfilename DB ?AUXDB?
5371 **
5372 ** Return a string that is a temporary filename
5373 */
5374 static int file_control_tempfilename(
5375   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5376   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5377   int objc,              /* Number of arguments */
5378   Tcl_Obj *CONST objv[]  /* Command arguments */
5379 ){
5380   sqlite3 *db;
5381   const char *zDbName = "main";
5382   char *zTName = 0;
5383 
5384   if( objc!=2 && objc!=3 ){
5385     Tcl_AppendResult(interp, "wrong # args: should be \"",
5386         Tcl_GetStringFromObj(objv[0], 0), " DB ?AUXDB?", 0);
5387     return TCL_ERROR;
5388   }
5389   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5390     return TCL_ERROR;
5391   }
5392   if( objc==3 ){
5393     zDbName = Tcl_GetString(objv[2]);
5394   }
5395   sqlite3_file_control(db, zDbName, SQLITE_FCNTL_TEMPFILENAME, (void*)&zTName);
5396   Tcl_AppendResult(interp, zTName, (char*)0);
5397   sqlite3_free(zTName);
5398   return TCL_OK;
5399 }
5400 
5401 
5402 /*
5403 ** tclcmd:   sqlite3_vfs_list
5404 **
5405 **   Return a tcl list containing the names of all registered vfs's.
5406 */
5407 static int vfs_list(
5408   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5409   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5410   int objc,              /* Number of arguments */
5411   Tcl_Obj *CONST objv[]  /* Command arguments */
5412 ){
5413   sqlite3_vfs *pVfs;
5414   Tcl_Obj *pRet = Tcl_NewObj();
5415   if( objc!=1 ){
5416     Tcl_WrongNumArgs(interp, 1, objv, "");
5417     return TCL_ERROR;
5418   }
5419   for(pVfs=sqlite3_vfs_find(0); pVfs; pVfs=pVfs->pNext){
5420     Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj(pVfs->zName, -1));
5421   }
5422   Tcl_SetObjResult(interp, pRet);
5423   return TCL_OK;
5424 }
5425 
5426 /*
5427 ** tclcmd:   sqlite3_limit DB ID VALUE
5428 **
5429 ** This TCL command runs the sqlite3_limit interface and
5430 ** verifies correct operation of the same.
5431 */
5432 static int test_limit(
5433   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5434   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5435   int objc,              /* Number of arguments */
5436   Tcl_Obj *CONST objv[]  /* Command arguments */
5437 ){
5438   sqlite3 *db;
5439   int rc;
5440   static const struct {
5441      char *zName;
5442      int id;
5443   } aId[] = {
5444     { "SQLITE_LIMIT_LENGTH",              SQLITE_LIMIT_LENGTH               },
5445     { "SQLITE_LIMIT_SQL_LENGTH",          SQLITE_LIMIT_SQL_LENGTH           },
5446     { "SQLITE_LIMIT_COLUMN",              SQLITE_LIMIT_COLUMN               },
5447     { "SQLITE_LIMIT_EXPR_DEPTH",          SQLITE_LIMIT_EXPR_DEPTH           },
5448     { "SQLITE_LIMIT_COMPOUND_SELECT",     SQLITE_LIMIT_COMPOUND_SELECT      },
5449     { "SQLITE_LIMIT_VDBE_OP",             SQLITE_LIMIT_VDBE_OP              },
5450     { "SQLITE_LIMIT_FUNCTION_ARG",        SQLITE_LIMIT_FUNCTION_ARG         },
5451     { "SQLITE_LIMIT_ATTACHED",            SQLITE_LIMIT_ATTACHED             },
5452     { "SQLITE_LIMIT_LIKE_PATTERN_LENGTH", SQLITE_LIMIT_LIKE_PATTERN_LENGTH  },
5453     { "SQLITE_LIMIT_VARIABLE_NUMBER",     SQLITE_LIMIT_VARIABLE_NUMBER      },
5454     { "SQLITE_LIMIT_TRIGGER_DEPTH",       SQLITE_LIMIT_TRIGGER_DEPTH        },
5455     { "SQLITE_LIMIT_WORKER_THREADS",      SQLITE_LIMIT_WORKER_THREADS       },
5456 
5457     /* Out of range test cases */
5458     { "SQLITE_LIMIT_TOOSMALL",            -1,                               },
5459     { "SQLITE_LIMIT_TOOBIG",              SQLITE_LIMIT_WORKER_THREADS+1     },
5460   };
5461   int i, id = 0;
5462   int val;
5463   const char *zId;
5464 
5465   if( objc!=4 ){
5466     Tcl_AppendResult(interp, "wrong # args: should be \"",
5467         Tcl_GetStringFromObj(objv[0], 0), " DB ID VALUE", 0);
5468     return TCL_ERROR;
5469   }
5470   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
5471   zId = Tcl_GetString(objv[2]);
5472   for(i=0; i<sizeof(aId)/sizeof(aId[0]); i++){
5473     if( strcmp(zId, aId[i].zName)==0 ){
5474       id = aId[i].id;
5475       break;
5476     }
5477   }
5478   if( i>=sizeof(aId)/sizeof(aId[0]) ){
5479     Tcl_AppendResult(interp, "unknown limit type: ", zId, (char*)0);
5480     return TCL_ERROR;
5481   }
5482   if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
5483   rc = sqlite3_limit(db, id, val);
5484   Tcl_SetObjResult(interp, Tcl_NewIntObj(rc));
5485   return TCL_OK;
5486 }
5487 
5488 /*
5489 ** tclcmd:  save_prng_state
5490 **
5491 ** Save the state of the pseudo-random number generator.
5492 ** At the same time, verify that sqlite3_test_control works even when
5493 ** called with an out-of-range opcode.
5494 */
5495 static int save_prng_state(
5496   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5497   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5498   int objc,              /* Number of arguments */
5499   Tcl_Obj *CONST objv[]  /* Command arguments */
5500 ){
5501   int rc = sqlite3_test_control(9999);
5502   assert( rc==0 );
5503   rc = sqlite3_test_control(-1);
5504   assert( rc==0 );
5505   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_SAVE);
5506   return TCL_OK;
5507 }
5508 /*
5509 ** tclcmd:  restore_prng_state
5510 */
5511 static int restore_prng_state(
5512   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5513   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5514   int objc,              /* Number of arguments */
5515   Tcl_Obj *CONST objv[]  /* Command arguments */
5516 ){
5517   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESTORE);
5518   return TCL_OK;
5519 }
5520 /*
5521 ** tclcmd:  reset_prng_state
5522 */
5523 static int reset_prng_state(
5524   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5525   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5526   int objc,              /* Number of arguments */
5527   Tcl_Obj *CONST objv[]  /* Command arguments */
5528 ){
5529   sqlite3_test_control(SQLITE_TESTCTRL_PRNG_RESET);
5530   return TCL_OK;
5531 }
5532 
5533 /*
5534 ** tclcmd:  database_may_be_corrupt
5535 **
5536 ** Indicate that database files might be corrupt.  In other words, set the normal
5537 ** state of operation.
5538 */
5539 static int database_may_be_corrupt(
5540   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5541   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5542   int objc,              /* Number of arguments */
5543   Tcl_Obj *CONST objv[]  /* Command arguments */
5544 ){
5545   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 0);
5546   return TCL_OK;
5547 }
5548 /*
5549 ** tclcmd:  database_never_corrupt
5550 **
5551 ** Indicate that database files are always well-formed.  This enables extra assert()
5552 ** statements that test conditions that are always true for well-formed databases.
5553 */
5554 static int database_never_corrupt(
5555   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5556   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5557   int objc,              /* Number of arguments */
5558   Tcl_Obj *CONST objv[]  /* Command arguments */
5559 ){
5560   sqlite3_test_control(SQLITE_TESTCTRL_NEVER_CORRUPT, 1);
5561   return TCL_OK;
5562 }
5563 
5564 /*
5565 ** tclcmd:  pcache_stats
5566 */
5567 static int test_pcache_stats(
5568   ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
5569   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5570   int objc,              /* Number of arguments */
5571   Tcl_Obj *CONST objv[]  /* Command arguments */
5572 ){
5573   int nMin;
5574   int nMax;
5575   int nCurrent;
5576   int nRecyclable;
5577   Tcl_Obj *pRet;
5578 
5579   sqlite3PcacheStats(&nCurrent, &nMax, &nMin, &nRecyclable);
5580 
5581   pRet = Tcl_NewObj();
5582   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("current", -1));
5583   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCurrent));
5584   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("max", -1));
5585   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMax));
5586   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("min", -1));
5587   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nMin));
5588   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("recyclable", -1));
5589   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nRecyclable));
5590 
5591   Tcl_SetObjResult(interp, pRet);
5592 
5593   return TCL_OK;
5594 }
5595 
5596 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
5597 static void test_unlock_notify_cb(void **aArg, int nArg){
5598   int ii;
5599   for(ii=0; ii<nArg; ii++){
5600     Tcl_EvalEx((Tcl_Interp *)aArg[ii], "unlock_notify", -1, TCL_EVAL_GLOBAL);
5601   }
5602 }
5603 #endif /* SQLITE_ENABLE_UNLOCK_NOTIFY */
5604 
5605 /*
5606 ** tclcmd:  sqlite3_unlock_notify db
5607 */
5608 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
5609 static int test_unlock_notify(
5610   ClientData clientData, /* Unused */
5611   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5612   int objc,              /* Number of arguments */
5613   Tcl_Obj *CONST objv[]  /* Command arguments */
5614 ){
5615   sqlite3 *db;
5616   int rc;
5617 
5618   if( objc!=2 ){
5619     Tcl_WrongNumArgs(interp, 1, objv, "DB");
5620     return TCL_ERROR;
5621   }
5622 
5623   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5624     return TCL_ERROR;
5625   }
5626   rc = sqlite3_unlock_notify(db, test_unlock_notify_cb, (void *)interp);
5627   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
5628   return TCL_OK;
5629 }
5630 #endif
5631 
5632 /*
5633 ** tclcmd:  sqlite3_wal_checkpoint db ?NAME?
5634 */
5635 static int test_wal_checkpoint(
5636   ClientData clientData, /* Unused */
5637   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5638   int objc,              /* Number of arguments */
5639   Tcl_Obj *CONST objv[]  /* Command arguments */
5640 ){
5641   char *zDb = 0;
5642   sqlite3 *db;
5643   int rc;
5644 
5645   if( objc!=3 && objc!=2 ){
5646     Tcl_WrongNumArgs(interp, 1, objv, "DB ?NAME?");
5647     return TCL_ERROR;
5648   }
5649 
5650   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
5651     return TCL_ERROR;
5652   }
5653   if( objc==3 ){
5654     zDb = Tcl_GetString(objv[2]);
5655   }
5656   rc = sqlite3_wal_checkpoint(db, zDb);
5657   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
5658   return TCL_OK;
5659 }
5660 
5661 /*
5662 ** tclcmd:  sqlite3_wal_checkpoint_v2 db MODE ?NAME?
5663 **
5664 ** This command calls the wal_checkpoint_v2() function with the specified
5665 ** mode argument (passive, full or restart). If present, the database name
5666 ** NAME is passed as the second argument to wal_checkpoint_v2(). If it the
5667 ** NAME argument is not present, a NULL pointer is passed instead.
5668 **
5669 ** If wal_checkpoint_v2() returns any value other than SQLITE_BUSY or
5670 ** SQLITE_OK, then this command returns TCL_ERROR. The Tcl result is set
5671 ** to the error message obtained from sqlite3_errmsg().
5672 **
5673 ** Otherwise, this command returns a list of three integers. The first integer
5674 ** is 1 if SQLITE_BUSY was returned, or 0 otherwise. The following two integers
5675 ** are the values returned via the output parameters by wal_checkpoint_v2() -
5676 ** the number of frames in the log and the number of frames in the log
5677 ** that have been checkpointed.
5678 */
5679 static int test_wal_checkpoint_v2(
5680   ClientData clientData, /* Unused */
5681   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5682   int objc,              /* Number of arguments */
5683   Tcl_Obj *CONST objv[]  /* Command arguments */
5684 ){
5685   char *zDb = 0;
5686   sqlite3 *db;
5687   int rc;
5688 
5689   int eMode;
5690   int nLog = -555;
5691   int nCkpt = -555;
5692   Tcl_Obj *pRet;
5693 
5694   const char * aMode[] = { "passive", "full", "restart", "truncate", 0 };
5695   assert( SQLITE_CHECKPOINT_PASSIVE==0 );
5696   assert( SQLITE_CHECKPOINT_FULL==1 );
5697   assert( SQLITE_CHECKPOINT_RESTART==2 );
5698   assert( SQLITE_CHECKPOINT_TRUNCATE==3 );
5699 
5700   if( objc!=3 && objc!=4 ){
5701     Tcl_WrongNumArgs(interp, 1, objv, "DB MODE ?NAME?");
5702     return TCL_ERROR;
5703   }
5704 
5705   if( objc==4 ){
5706     zDb = Tcl_GetString(objv[3]);
5707   }
5708   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) || (
5709       TCL_OK!=Tcl_GetIntFromObj(0, objv[2], &eMode)
5710    && TCL_OK!=Tcl_GetIndexFromObj(interp, objv[2], aMode, "mode", 0, &eMode)
5711   )){
5712     return TCL_ERROR;
5713   }
5714 
5715   rc = sqlite3_wal_checkpoint_v2(db, zDb, eMode, &nLog, &nCkpt);
5716   if( rc!=SQLITE_OK && rc!=SQLITE_BUSY ){
5717     const char *zErrCode = sqlite3ErrName(rc);
5718     Tcl_ResetResult(interp);
5719     Tcl_AppendResult(interp, zErrCode, " - ", (char *)sqlite3_errmsg(db), 0);
5720     return TCL_ERROR;
5721   }
5722 
5723   pRet = Tcl_NewObj();
5724   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(rc==SQLITE_BUSY?1:0));
5725   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nLog));
5726   Tcl_ListObjAppendElement(interp, pRet, Tcl_NewIntObj(nCkpt));
5727   Tcl_SetObjResult(interp, pRet);
5728 
5729   return TCL_OK;
5730 }
5731 
5732 /*
5733 ** tclcmd:  sqlite3_wal_autocheckpoint db VALUE
5734 */
5735 static int test_wal_autocheckpoint(
5736   ClientData clientData, /* Unused */
5737   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5738   int objc,              /* Number of arguments */
5739   Tcl_Obj *CONST objv[]  /* Command arguments */
5740 ){
5741   sqlite3 *db;
5742   int rc;
5743   int iVal;
5744 
5745 
5746   if( objc!=3 ){
5747     Tcl_WrongNumArgs(interp, 1, objv, "DB VALUE");
5748     return TCL_ERROR;
5749   }
5750 
5751   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db)
5752    || Tcl_GetIntFromObj(0, objv[2], &iVal)
5753   ){
5754     return TCL_ERROR;
5755   }
5756 
5757   rc = sqlite3_wal_autocheckpoint(db, iVal);
5758   Tcl_ResetResult(interp);
5759   if( rc!=SQLITE_OK ){
5760     const char *zErrCode = sqlite3ErrName(rc);
5761     Tcl_SetObjResult(interp, Tcl_NewStringObj(zErrCode, -1));
5762     return TCL_ERROR;
5763   }
5764 
5765   return TCL_OK;
5766 }
5767 
5768 
5769 /*
5770 ** tclcmd:  test_sqlite3_log ?SCRIPT?
5771 */
5772 static struct LogCallback {
5773   Tcl_Interp *pInterp;
5774   Tcl_Obj *pObj;
5775 } logcallback = {0, 0};
5776 static void xLogcallback(void *unused, int err, char *zMsg){
5777   Tcl_Obj *pNew = Tcl_DuplicateObj(logcallback.pObj);
5778   Tcl_IncrRefCount(pNew);
5779   Tcl_ListObjAppendElement(
5780       0, pNew, Tcl_NewStringObj(sqlite3ErrName(err), -1)
5781   );
5782   Tcl_ListObjAppendElement(0, pNew, Tcl_NewStringObj(zMsg, -1));
5783   Tcl_EvalObjEx(logcallback.pInterp, pNew, TCL_EVAL_GLOBAL|TCL_EVAL_DIRECT);
5784   Tcl_DecrRefCount(pNew);
5785 }
5786 static int test_sqlite3_log(
5787   ClientData clientData,
5788   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
5789   int objc,              /* Number of arguments */
5790   Tcl_Obj *CONST objv[]  /* Command arguments */
5791 ){
5792   if( objc>2 ){
5793     Tcl_WrongNumArgs(interp, 1, objv, "SCRIPT");
5794     return TCL_ERROR;
5795   }
5796   if( logcallback.pObj ){
5797     Tcl_DecrRefCount(logcallback.pObj);
5798     logcallback.pObj = 0;
5799     logcallback.pInterp = 0;
5800     sqlite3_config(SQLITE_CONFIG_LOG, 0, 0);
5801   }
5802   if( objc>1 ){
5803     logcallback.pObj = objv[1];
5804     Tcl_IncrRefCount(logcallback.pObj);
5805     logcallback.pInterp = interp;
5806     sqlite3_config(SQLITE_CONFIG_LOG, xLogcallback, 0);
5807   }
5808   return TCL_OK;
5809 }
5810 
5811 /*
5812 **     tcl_objproc COMMANDNAME ARGS...
5813 **
5814 ** Run a TCL command using its objProc interface.  Throw an error if
5815 ** the command has no objProc interface.
5816 */
5817 static int runAsObjProc(
5818   void * clientData,
5819   Tcl_Interp *interp,
5820   int objc,
5821   Tcl_Obj *CONST objv[]
5822 ){
5823   Tcl_CmdInfo cmdInfo;
5824   if( objc<2 ){
5825     Tcl_WrongNumArgs(interp, 1, objv, "COMMAND ...");
5826     return TCL_ERROR;
5827   }
5828   if( !Tcl_GetCommandInfo(interp, Tcl_GetString(objv[1]), &cmdInfo) ){
5829     Tcl_AppendResult(interp, "command not found: ",
5830            Tcl_GetString(objv[1]), (char*)0);
5831     return TCL_ERROR;
5832   }
5833   if( cmdInfo.objProc==0 ){
5834     Tcl_AppendResult(interp, "command has no objProc: ",
5835            Tcl_GetString(objv[1]), (char*)0);
5836     return TCL_ERROR;
5837   }
5838   return cmdInfo.objProc(cmdInfo.objClientData, interp, objc-1, objv+1);
5839 }
5840 
5841 #ifndef SQLITE_OMIT_EXPLAIN
5842 /*
5843 ** WARNING: The following function, printExplainQueryPlan() is an exact
5844 ** copy of example code from eqp.in (eqp.html). If this code is modified,
5845 ** then the documentation copy needs to be modified as well.
5846 */
5847 /*
5848 ** Argument pStmt is a prepared SQL statement. This function compiles
5849 ** an EXPLAIN QUERY PLAN command to report on the prepared statement,
5850 ** and prints the report to stdout using printf().
5851 */
5852 int printExplainQueryPlan(sqlite3_stmt *pStmt){
5853   const char *zSql;               /* Input SQL */
5854   char *zExplain;                 /* SQL with EXPLAIN QUERY PLAN prepended */
5855   sqlite3_stmt *pExplain;         /* Compiled EXPLAIN QUERY PLAN command */
5856   int rc;                         /* Return code from sqlite3_prepare_v2() */
5857 
5858   zSql = sqlite3_sql(pStmt);
5859   if( zSql==0 ) return SQLITE_ERROR;
5860 
5861   zExplain = sqlite3_mprintf("EXPLAIN QUERY PLAN %s", zSql);
5862   if( zExplain==0 ) return SQLITE_NOMEM;
5863 
5864   rc = sqlite3_prepare_v2(sqlite3_db_handle(pStmt), zExplain, -1, &pExplain, 0);
5865   sqlite3_free(zExplain);
5866   if( rc!=SQLITE_OK ) return rc;
5867 
5868   while( SQLITE_ROW==sqlite3_step(pExplain) ){
5869     int iSelectid = sqlite3_column_int(pExplain, 0);
5870     int iOrder = sqlite3_column_int(pExplain, 1);
5871     int iFrom = sqlite3_column_int(pExplain, 2);
5872     const char *zDetail = (const char *)sqlite3_column_text(pExplain, 3);
5873 
5874     printf("%d %d %d %s\n", iSelectid, iOrder, iFrom, zDetail);
5875   }
5876 
5877   return sqlite3_finalize(pExplain);
5878 }
5879 
5880 static int test_print_eqp(
5881   void * clientData,
5882   Tcl_Interp *interp,
5883   int objc,
5884   Tcl_Obj *CONST objv[]
5885 ){
5886   int rc;
5887   sqlite3_stmt *pStmt;
5888 
5889   if( objc!=2 ){
5890     Tcl_WrongNumArgs(interp, 1, objv, "STMT");
5891     return TCL_ERROR;
5892   }
5893   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
5894   rc = printExplainQueryPlan(pStmt);
5895   /* This is needed on Windows so that a test case using this
5896   ** function can open a read pipe and get the output of
5897   ** printExplainQueryPlan() immediately.
5898   */
5899   fflush(stdout);
5900   Tcl_SetResult(interp, (char *)t1ErrorName(rc), 0);
5901   return TCL_OK;
5902 }
5903 #endif /* SQLITE_OMIT_EXPLAIN */
5904 
5905 /*
5906 ** sqlite3_test_control VERB ARGS...
5907 */
5908 static int test_test_control(
5909   void * clientData,
5910   Tcl_Interp *interp,
5911   int objc,
5912   Tcl_Obj *CONST objv[]
5913 ){
5914   struct Verb {
5915     const char *zName;
5916     int i;
5917   } aVerb[] = {
5918     { "SQLITE_TESTCTRL_LOCALTIME_FAULT", SQLITE_TESTCTRL_LOCALTIME_FAULT },
5919     { "SQLITE_TESTCTRL_SORTER_MMAP", SQLITE_TESTCTRL_SORTER_MMAP },
5920   };
5921   int iVerb;
5922   int iFlag;
5923   int rc;
5924 
5925   if( objc<2 ){
5926     Tcl_WrongNumArgs(interp, 1, objv, "VERB ARGS...");
5927     return TCL_ERROR;
5928   }
5929 
5930   rc = Tcl_GetIndexFromObjStruct(
5931       interp, objv[1], aVerb, sizeof(aVerb[0]), "VERB", 0, &iVerb
5932   );
5933   if( rc!=TCL_OK ) return rc;
5934 
5935   iFlag = aVerb[iVerb].i;
5936   switch( iFlag ){
5937     case SQLITE_TESTCTRL_LOCALTIME_FAULT: {
5938       int val;
5939       if( objc!=3 ){
5940         Tcl_WrongNumArgs(interp, 2, objv, "ONOFF");
5941         return TCL_ERROR;
5942       }
5943       if( Tcl_GetBooleanFromObj(interp, objv[2], &val) ) return TCL_ERROR;
5944       sqlite3_test_control(SQLITE_TESTCTRL_LOCALTIME_FAULT, val);
5945       break;
5946     }
5947 
5948     case SQLITE_TESTCTRL_SORTER_MMAP: {
5949       int val;
5950       sqlite3 *db;
5951       if( objc!=4 ){
5952         Tcl_WrongNumArgs(interp, 2, objv, "DB LIMIT");
5953         return TCL_ERROR;
5954       }
5955       if( getDbPointer(interp, Tcl_GetString(objv[2]), &db) ) return TCL_ERROR;
5956       if( Tcl_GetIntFromObj(interp, objv[3], &val) ) return TCL_ERROR;
5957       sqlite3_test_control(SQLITE_TESTCTRL_SORTER_MMAP, db, val);
5958       break;
5959     }
5960   }
5961 
5962   Tcl_ResetResult(interp);
5963   return TCL_OK;
5964 }
5965 
5966 #if SQLITE_OS_UNIX
5967 #include <sys/time.h>
5968 #include <sys/resource.h>
5969 
5970 static int test_getrusage(
5971   void * clientData,
5972   Tcl_Interp *interp,
5973   int objc,
5974   Tcl_Obj *CONST objv[]
5975 ){
5976   char buf[1024];
5977   struct rusage r;
5978   memset(&r, 0, sizeof(r));
5979   getrusage(RUSAGE_SELF, &r);
5980 
5981   sprintf(buf, "ru_utime=%d.%06d ru_stime=%d.%06d ru_minflt=%d ru_majflt=%d",
5982     (int)r.ru_utime.tv_sec, (int)r.ru_utime.tv_usec,
5983     (int)r.ru_stime.tv_sec, (int)r.ru_stime.tv_usec,
5984     (int)r.ru_minflt, (int)r.ru_majflt
5985   );
5986   Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, -1));
5987   return TCL_OK;
5988 }
5989 #endif
5990 
5991 #if SQLITE_OS_WIN
5992 /*
5993 ** Information passed from the main thread into the windows file locker
5994 ** background thread.
5995 */
5996 struct win32FileLocker {
5997   char *evName;       /* Name of event to signal thread startup */
5998   HANDLE h;           /* Handle of the file to be locked */
5999   int delay1;         /* Delay before locking */
6000   int delay2;         /* Delay before unlocking */
6001   int ok;             /* Finished ok */
6002   int err;            /* True if an error occurs */
6003 };
6004 #endif
6005 
6006 
6007 #if SQLITE_OS_WIN
6008 #include <process.h>
6009 /*
6010 ** The background thread that does file locking.
6011 */
6012 static void win32_file_locker(void *pAppData){
6013   struct win32FileLocker *p = (struct win32FileLocker*)pAppData;
6014   if( p->evName ){
6015     HANDLE ev = OpenEvent(EVENT_MODIFY_STATE, FALSE, p->evName);
6016     if ( ev ){
6017       SetEvent(ev);
6018       CloseHandle(ev);
6019     }
6020   }
6021   if( p->delay1 ) Sleep(p->delay1);
6022   if( LockFile(p->h, 0, 0, 100000000, 0) ){
6023     Sleep(p->delay2);
6024     UnlockFile(p->h, 0, 0, 100000000, 0);
6025     p->ok = 1;
6026   }else{
6027     p->err = 1;
6028   }
6029   CloseHandle(p->h);
6030   p->h = 0;
6031   p->delay1 = 0;
6032   p->delay2 = 0;
6033 }
6034 #endif
6035 
6036 #if SQLITE_OS_WIN
6037 /*
6038 **      lock_win32_file FILENAME DELAY1 DELAY2
6039 **
6040 ** Get an exclusive manditory lock on file for DELAY2 milliseconds.
6041 ** Wait DELAY1 milliseconds before acquiring the lock.
6042 */
6043 static int win32_file_lock(
6044   void * clientData,
6045   Tcl_Interp *interp,
6046   int objc,
6047   Tcl_Obj *CONST objv[]
6048 ){
6049   static struct win32FileLocker x = { "win32_file_lock", 0, 0, 0, 0, 0 };
6050   const char *zFilename;
6051   char zBuf[200];
6052   int retry = 0;
6053   HANDLE ev;
6054   DWORD wResult;
6055 
6056   if( objc!=4 && objc!=1 ){
6057     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME DELAY1 DELAY2");
6058     return TCL_ERROR;
6059   }
6060   if( objc==1 ){
6061     sqlite3_snprintf(sizeof(zBuf), zBuf, "%d %d %d %d %d",
6062                      x.ok, x.err, x.delay1, x.delay2, x.h);
6063     Tcl_AppendResult(interp, zBuf, (char*)0);
6064     return TCL_OK;
6065   }
6066   while( x.h && retry<30 ){
6067     retry++;
6068     Sleep(100);
6069   }
6070   if( x.h ){
6071     Tcl_AppendResult(interp, "busy", (char*)0);
6072     return TCL_ERROR;
6073   }
6074   if( Tcl_GetIntFromObj(interp, objv[2], &x.delay1) ) return TCL_ERROR;
6075   if( Tcl_GetIntFromObj(interp, objv[3], &x.delay2) ) return TCL_ERROR;
6076   zFilename = Tcl_GetString(objv[1]);
6077   x.h = CreateFile(zFilename, GENERIC_READ|GENERIC_WRITE,
6078               FILE_SHARE_READ|FILE_SHARE_WRITE, 0, OPEN_ALWAYS,
6079               FILE_ATTRIBUTE_NORMAL, 0);
6080   if( !x.h ){
6081     Tcl_AppendResult(interp, "cannot open file: ", zFilename, (char*)0);
6082     return TCL_ERROR;
6083   }
6084   ev = CreateEvent(NULL, TRUE, FALSE, x.evName);
6085   if ( !ev ){
6086     Tcl_AppendResult(interp, "cannot create event: ", x.evName, (char*)0);
6087     return TCL_ERROR;
6088   }
6089   _beginthread(win32_file_locker, 0, (void*)&x);
6090   Sleep(0);
6091   if ( (wResult = WaitForSingleObject(ev, 10000))!=WAIT_OBJECT_0 ){
6092     sqlite3_snprintf(sizeof(zBuf), zBuf, "0x%x", wResult);
6093     Tcl_AppendResult(interp, "wait failed: ", zBuf, (char*)0);
6094     CloseHandle(ev);
6095     return TCL_ERROR;
6096   }
6097   CloseHandle(ev);
6098   return TCL_OK;
6099 }
6100 
6101 /*
6102 **      exists_win32_path PATH
6103 **
6104 ** Returns non-zero if the specified path exists, whose fully qualified name
6105 ** may exceed 260 characters if it is prefixed with "\\?\".
6106 */
6107 static int win32_exists_path(
6108   void *clientData,
6109   Tcl_Interp *interp,
6110   int objc,
6111   Tcl_Obj *CONST objv[]
6112 ){
6113   if( objc!=2 ){
6114     Tcl_WrongNumArgs(interp, 1, objv, "PATH");
6115     return TCL_ERROR;
6116   }
6117   Tcl_SetObjResult(interp, Tcl_NewBooleanObj(
6118       GetFileAttributesW( Tcl_GetUnicode(objv[1]))!=INVALID_FILE_ATTRIBUTES ));
6119   return TCL_OK;
6120 }
6121 
6122 /*
6123 **      find_win32_file PATTERN
6124 **
6125 ** Returns a list of entries in a directory that match the specified pattern,
6126 ** whose fully qualified name may exceed 248 characters if it is prefixed with
6127 ** "\\?\".
6128 */
6129 static int win32_find_file(
6130   void *clientData,
6131   Tcl_Interp *interp,
6132   int objc,
6133   Tcl_Obj *CONST objv[]
6134 ){
6135   HANDLE hFindFile = INVALID_HANDLE_VALUE;
6136   WIN32_FIND_DATAW findData;
6137   Tcl_Obj *listObj;
6138   DWORD lastErrno;
6139   if( objc!=2 ){
6140     Tcl_WrongNumArgs(interp, 1, objv, "PATTERN");
6141     return TCL_ERROR;
6142   }
6143   hFindFile = FindFirstFileW(Tcl_GetUnicode(objv[1]), &findData);
6144   if( hFindFile==INVALID_HANDLE_VALUE ){
6145     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6146     return TCL_ERROR;
6147   }
6148   listObj = Tcl_NewObj();
6149   Tcl_IncrRefCount(listObj);
6150   do {
6151     Tcl_ListObjAppendElement(interp, listObj, Tcl_NewUnicodeObj(
6152         findData.cFileName, -1));
6153     Tcl_ListObjAppendElement(interp, listObj, Tcl_NewWideIntObj(
6154         findData.dwFileAttributes));
6155   } while( FindNextFileW(hFindFile, &findData) );
6156   lastErrno = GetLastError();
6157   if( lastErrno!=NO_ERROR && lastErrno!=ERROR_NO_MORE_FILES ){
6158     FindClose(hFindFile);
6159     Tcl_DecrRefCount(listObj);
6160     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6161     return TCL_ERROR;
6162   }
6163   FindClose(hFindFile);
6164   Tcl_SetObjResult(interp, listObj);
6165   return TCL_OK;
6166 }
6167 
6168 /*
6169 **      delete_win32_file FILENAME
6170 **
6171 ** Deletes the specified file, whose fully qualified name may exceed 260
6172 ** characters if it is prefixed with "\\?\".
6173 */
6174 static int win32_delete_file(
6175   void *clientData,
6176   Tcl_Interp *interp,
6177   int objc,
6178   Tcl_Obj *CONST objv[]
6179 ){
6180   if( objc!=2 ){
6181     Tcl_WrongNumArgs(interp, 1, objv, "FILENAME");
6182     return TCL_ERROR;
6183   }
6184   if( !DeleteFileW(Tcl_GetUnicode(objv[1])) ){
6185     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6186     return TCL_ERROR;
6187   }
6188   Tcl_ResetResult(interp);
6189   return TCL_OK;
6190 }
6191 
6192 /*
6193 **      make_win32_dir DIRECTORY
6194 **
6195 ** Creates the specified directory, whose fully qualified name may exceed 248
6196 ** characters if it is prefixed with "\\?\".
6197 */
6198 static int win32_mkdir(
6199   void *clientData,
6200   Tcl_Interp *interp,
6201   int objc,
6202   Tcl_Obj *CONST objv[]
6203 ){
6204   if( objc!=2 ){
6205     Tcl_WrongNumArgs(interp, 1, objv, "DIRECTORY");
6206     return TCL_ERROR;
6207   }
6208   if( !CreateDirectoryW(Tcl_GetUnicode(objv[1]), NULL) ){
6209     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6210     return TCL_ERROR;
6211   }
6212   Tcl_ResetResult(interp);
6213   return TCL_OK;
6214 }
6215 
6216 /*
6217 **      remove_win32_dir DIRECTORY
6218 **
6219 ** Removes the specified directory, whose fully qualified name may exceed 248
6220 ** characters if it is prefixed with "\\?\".
6221 */
6222 static int win32_rmdir(
6223   void *clientData,
6224   Tcl_Interp *interp,
6225   int objc,
6226   Tcl_Obj *CONST objv[]
6227 ){
6228   if( objc!=2 ){
6229     Tcl_WrongNumArgs(interp, 1, objv, "DIRECTORY");
6230     return TCL_ERROR;
6231   }
6232   if( !RemoveDirectoryW(Tcl_GetUnicode(objv[1])) ){
6233     Tcl_SetObjResult(interp, Tcl_NewWideIntObj(GetLastError()));
6234     return TCL_ERROR;
6235   }
6236   Tcl_ResetResult(interp);
6237   return TCL_OK;
6238 }
6239 #endif
6240 
6241 
6242 /*
6243 **      optimization_control DB OPT BOOLEAN
6244 **
6245 ** Enable or disable query optimizations using the sqlite3_test_control()
6246 ** interface.  Disable if BOOLEAN is false and enable if BOOLEAN is true.
6247 ** OPT is the name of the optimization to be disabled.
6248 */
6249 static int optimization_control(
6250   void * clientData,
6251   Tcl_Interp *interp,
6252   int objc,
6253   Tcl_Obj *CONST objv[]
6254 ){
6255   int i;
6256   sqlite3 *db;
6257   const char *zOpt;
6258   int onoff;
6259   int mask = 0;
6260   static const struct {
6261     const char *zOptName;
6262     int mask;
6263   } aOpt[] = {
6264     { "all",                 SQLITE_AllOpts        },
6265     { "none",                0                     },
6266     { "query-flattener",     SQLITE_QueryFlattener },
6267     { "column-cache",        SQLITE_ColumnCache    },
6268     { "groupby-order",       SQLITE_GroupByOrder   },
6269     { "factor-constants",    SQLITE_FactorOutConst },
6270     { "distinct-opt",        SQLITE_DistinctOpt    },
6271     { "cover-idx-scan",      SQLITE_CoverIdxScan   },
6272     { "order-by-idx-join",   SQLITE_OrderByIdxJoin },
6273     { "transitive",          SQLITE_Transitive     },
6274     { "subquery-coroutine",  SQLITE_SubqCoroutine  },
6275     { "omit-noop-join",      SQLITE_OmitNoopJoin   },
6276     { "stat3",               SQLITE_Stat34         },
6277     { "stat4",               SQLITE_Stat34         },
6278   };
6279 
6280   if( objc!=4 ){
6281     Tcl_WrongNumArgs(interp, 1, objv, "DB OPT BOOLEAN");
6282     return TCL_ERROR;
6283   }
6284   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6285   if( Tcl_GetBooleanFromObj(interp, objv[3], &onoff) ) return TCL_ERROR;
6286   zOpt = Tcl_GetString(objv[2]);
6287   for(i=0; i<sizeof(aOpt)/sizeof(aOpt[0]); i++){
6288     if( strcmp(zOpt, aOpt[i].zOptName)==0 ){
6289       mask = aOpt[i].mask;
6290       break;
6291     }
6292   }
6293   if( onoff ) mask = ~mask;
6294   if( i>=sizeof(aOpt)/sizeof(aOpt[0]) ){
6295     Tcl_AppendResult(interp, "unknown optimization - should be one of:",
6296                      (char*)0);
6297     for(i=0; i<sizeof(aOpt)/sizeof(aOpt[0]); i++){
6298       Tcl_AppendResult(interp, " ", aOpt[i].zOptName, (char*)0);
6299     }
6300     return TCL_ERROR;
6301   }
6302   sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS, db, mask);
6303   return TCL_OK;
6304 }
6305 
6306 typedef struct sqlite3_api_routines sqlite3_api_routines;
6307 /*
6308 **     load_static_extension DB NAME ...
6309 **
6310 ** Load one or more statically linked extensions.
6311 */
6312 static int tclLoadStaticExtensionCmd(
6313   void * clientData,
6314   Tcl_Interp *interp,
6315   int objc,
6316   Tcl_Obj *CONST objv[]
6317 ){
6318   extern int sqlite3_amatch_init(sqlite3*,char**,const sqlite3_api_routines*);
6319   extern int sqlite3_closure_init(sqlite3*,char**,const sqlite3_api_routines*);
6320   extern int sqlite3_eval_init(sqlite3*,char**,const sqlite3_api_routines*);
6321   extern int sqlite3_fileio_init(sqlite3*,char**,const sqlite3_api_routines*);
6322   extern int sqlite3_fuzzer_init(sqlite3*,char**,const sqlite3_api_routines*);
6323   extern int sqlite3_ieee_init(sqlite3*,char**,const sqlite3_api_routines*);
6324   extern int sqlite3_nextchar_init(sqlite3*,char**,const sqlite3_api_routines*);
6325   extern int sqlite3_percentile_init(sqlite3*,char**,const sqlite3_api_routines*);
6326   extern int sqlite3_regexp_init(sqlite3*,char**,const sqlite3_api_routines*);
6327   extern int sqlite3_spellfix_init(sqlite3*,char**,const sqlite3_api_routines*);
6328   extern int sqlite3_totype_init(sqlite3*,char**,const sqlite3_api_routines*);
6329   extern int sqlite3_wholenumber_init(sqlite3*,char**,const sqlite3_api_routines*);
6330   static const struct {
6331     const char *zExtName;
6332     int (*pInit)(sqlite3*,char**,const sqlite3_api_routines*);
6333   } aExtension[] = {
6334     { "amatch",                sqlite3_amatch_init               },
6335     { "closure",               sqlite3_closure_init              },
6336     { "eval",                  sqlite3_eval_init                 },
6337     { "fileio",                sqlite3_fileio_init               },
6338     { "fuzzer",                sqlite3_fuzzer_init               },
6339     { "ieee754",               sqlite3_ieee_init                 },
6340     { "nextchar",              sqlite3_nextchar_init             },
6341     { "percentile",            sqlite3_percentile_init           },
6342     { "regexp",                sqlite3_regexp_init               },
6343     { "spellfix",              sqlite3_spellfix_init             },
6344     { "totype",                sqlite3_totype_init               },
6345     { "wholenumber",           sqlite3_wholenumber_init          },
6346   };
6347   sqlite3 *db;
6348   const char *zName;
6349   int i, j, rc;
6350   char *zErrMsg = 0;
6351   if( objc<3 ){
6352     Tcl_WrongNumArgs(interp, 1, objv, "DB NAME ...");
6353     return TCL_ERROR;
6354   }
6355   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6356   for(j=2; j<objc; j++){
6357     zName = Tcl_GetString(objv[j]);
6358     for(i=0; i<ArraySize(aExtension); i++){
6359       if( strcmp(zName, aExtension[i].zExtName)==0 ) break;
6360     }
6361     if( i>=ArraySize(aExtension) ){
6362       Tcl_AppendResult(interp, "no such extension: ", zName, (char*)0);
6363       return TCL_ERROR;
6364     }
6365     rc = aExtension[i].pInit(db, &zErrMsg, 0);
6366     if( rc!=SQLITE_OK || zErrMsg ){
6367       Tcl_AppendResult(interp, "initialization of ", zName, " failed: ", zErrMsg,
6368                        (char*)0);
6369       sqlite3_free(zErrMsg);
6370       return TCL_ERROR;
6371     }
6372   }
6373   return TCL_OK;
6374 }
6375 
6376 /*
6377 **     sorter_test_fakeheap BOOL
6378 **
6379 */
6380 static int sorter_test_fakeheap(
6381   void * clientData,
6382   Tcl_Interp *interp,
6383   int objc,
6384   Tcl_Obj *CONST objv[]
6385 ){
6386   int bArg;
6387   if( objc!=2 ){
6388     Tcl_WrongNumArgs(interp, 1, objv, "BOOL");
6389     return TCL_ERROR;
6390   }
6391 
6392   if( Tcl_GetBooleanFromObj(interp, objv[1], &bArg) ){
6393     return TCL_ERROR;
6394   }
6395 
6396   if( bArg ){
6397     if( sqlite3GlobalConfig.pHeap==0 ){
6398       sqlite3GlobalConfig.pHeap = SQLITE_INT_TO_PTR(-1);
6399     }
6400   }else{
6401     if( sqlite3GlobalConfig.pHeap==SQLITE_INT_TO_PTR(-1) ){
6402       sqlite3GlobalConfig.pHeap = 0;
6403     }
6404   }
6405 
6406   Tcl_ResetResult(interp);
6407   return TCL_OK;
6408 }
6409 
6410 /*
6411 **     sorter_test_sort4_helper DB SQL1 NSTEP SQL2
6412 **
6413 ** Compile SQL statement $SQL1 and step it $NSTEP times. For each row,
6414 ** check that the leftmost and rightmost columns returned are both integers,
6415 ** and that both contain the same value.
6416 **
6417 ** Then execute statement $SQL2. Check that the statement returns the same
6418 ** set of integers in the same order as in the previous step (using $SQL1).
6419 */
6420 static int sorter_test_sort4_helper(
6421   void * clientData,
6422   Tcl_Interp *interp,
6423   int objc,
6424   Tcl_Obj *CONST objv[]
6425 ){
6426   const char *zSql1;
6427   const char *zSql2;
6428   int nStep;
6429   int iStep;
6430   int iCksum1 = 0;
6431   int iCksum2 = 0;
6432   int rc;
6433   int iB;
6434   sqlite3 *db;
6435   sqlite3_stmt *pStmt;
6436 
6437   if( objc!=5 ){
6438     Tcl_WrongNumArgs(interp, 1, objv, "DB SQL1 NSTEP SQL2");
6439     return TCL_ERROR;
6440   }
6441 
6442   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
6443   zSql1 = Tcl_GetString(objv[2]);
6444   if( Tcl_GetIntFromObj(interp, objv[3], &nStep) ) return TCL_ERROR;
6445   zSql2 = Tcl_GetString(objv[4]);
6446 
6447   rc = sqlite3_prepare_v2(db, zSql1, -1, &pStmt, 0);
6448   if( rc!=SQLITE_OK ) goto sql_error;
6449 
6450   iB = sqlite3_column_count(pStmt)-1;
6451   for(iStep=0; iStep<nStep && SQLITE_ROW==sqlite3_step(pStmt); iStep++){
6452     int a = sqlite3_column_int(pStmt, 0);
6453     if( a!=sqlite3_column_int(pStmt, iB) ){
6454       Tcl_AppendResult(interp, "data error: (a!=b)", 0);
6455       return TCL_ERROR;
6456     }
6457 
6458     iCksum1 += (iCksum1 << 3) + a;
6459   }
6460   rc = sqlite3_finalize(pStmt);
6461   if( rc!=SQLITE_OK ) goto sql_error;
6462 
6463   rc = sqlite3_prepare_v2(db, zSql2, -1, &pStmt, 0);
6464   if( rc!=SQLITE_OK ) goto sql_error;
6465   for(iStep=0; SQLITE_ROW==sqlite3_step(pStmt); iStep++){
6466     int a = sqlite3_column_int(pStmt, 0);
6467     iCksum2 += (iCksum2 << 3) + a;
6468   }
6469   rc = sqlite3_finalize(pStmt);
6470   if( rc!=SQLITE_OK ) goto sql_error;
6471 
6472   if( iCksum1!=iCksum2 ){
6473     Tcl_AppendResult(interp, "checksum mismatch", 0);
6474     return TCL_ERROR;
6475   }
6476 
6477   return TCL_OK;
6478  sql_error:
6479   Tcl_AppendResult(interp, "sql error: ", sqlite3_errmsg(db), 0);
6480   return TCL_ERROR;
6481 }
6482 
6483 
6484 #ifdef SQLITE_USER_AUTHENTICATION
6485 #include "sqlite3userauth.h"
6486 /*
6487 ** tclcmd:  sqlite3_user_authenticate DB USERNAME PASSWORD
6488 */
6489 static int test_user_authenticate(
6490   ClientData clientData, /* Unused */
6491   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6492   int objc,              /* Number of arguments */
6493   Tcl_Obj *CONST objv[]  /* Command arguments */
6494 ){
6495   char *zUser = 0;
6496   char *zPasswd = 0;
6497   int nPasswd = 0;
6498   sqlite3 *db;
6499   int rc;
6500 
6501   if( objc!=4 ){
6502     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD");
6503     return TCL_ERROR;
6504   }
6505   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6506     return TCL_ERROR;
6507   }
6508   zUser = Tcl_GetString(objv[2]);
6509   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
6510   rc = sqlite3_user_authenticate(db, zUser, zPasswd, nPasswd);
6511   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6512   return TCL_OK;
6513 }
6514 #endif /* SQLITE_USER_AUTHENTICATION */
6515 
6516 #ifdef SQLITE_USER_AUTHENTICATION
6517 /*
6518 ** tclcmd:  sqlite3_user_add DB USERNAME PASSWORD ISADMIN
6519 */
6520 static int test_user_add(
6521   ClientData clientData, /* Unused */
6522   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6523   int objc,              /* Number of arguments */
6524   Tcl_Obj *CONST objv[]  /* Command arguments */
6525 ){
6526   char *zUser = 0;
6527   char *zPasswd = 0;
6528   int nPasswd = 0;
6529   int isAdmin = 0;
6530   sqlite3 *db;
6531   int rc;
6532 
6533   if( objc!=5 ){
6534     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD ISADMIN");
6535     return TCL_ERROR;
6536   }
6537   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6538     return TCL_ERROR;
6539   }
6540   zUser = Tcl_GetString(objv[2]);
6541   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
6542   Tcl_GetBooleanFromObj(interp, objv[4], &isAdmin);
6543   rc = sqlite3_user_add(db, zUser, zPasswd, nPasswd, isAdmin);
6544   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6545   return TCL_OK;
6546 }
6547 #endif /* SQLITE_USER_AUTHENTICATION */
6548 
6549 #ifdef SQLITE_USER_AUTHENTICATION
6550 /*
6551 ** tclcmd:  sqlite3_user_change DB USERNAME PASSWORD ISADMIN
6552 */
6553 static int test_user_change(
6554   ClientData clientData, /* Unused */
6555   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6556   int objc,              /* Number of arguments */
6557   Tcl_Obj *CONST objv[]  /* Command arguments */
6558 ){
6559   char *zUser = 0;
6560   char *zPasswd = 0;
6561   int nPasswd = 0;
6562   int isAdmin = 0;
6563   sqlite3 *db;
6564   int rc;
6565 
6566   if( objc!=5 ){
6567     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME PASSWORD ISADMIN");
6568     return TCL_ERROR;
6569   }
6570   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6571     return TCL_ERROR;
6572   }
6573   zUser = Tcl_GetString(objv[2]);
6574   zPasswd = Tcl_GetStringFromObj(objv[3], &nPasswd);
6575   Tcl_GetBooleanFromObj(interp, objv[4], &isAdmin);
6576   rc = sqlite3_user_change(db, zUser, zPasswd, nPasswd, isAdmin);
6577   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6578   return TCL_OK;
6579 }
6580 #endif /* SQLITE_USER_AUTHENTICATION */
6581 
6582 #ifdef SQLITE_USER_AUTHENTICATION
6583 /*
6584 ** tclcmd:  sqlite3_user_delete DB USERNAME
6585 */
6586 static int test_user_delete(
6587   ClientData clientData, /* Unused */
6588   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6589   int objc,              /* Number of arguments */
6590   Tcl_Obj *CONST objv[]  /* Command arguments */
6591 ){
6592   char *zUser = 0;
6593   sqlite3 *db;
6594   int rc;
6595 
6596   if( objc!=3 ){
6597     Tcl_WrongNumArgs(interp, 1, objv, "DB USERNAME");
6598     return TCL_ERROR;
6599   }
6600   if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ){
6601     return TCL_ERROR;
6602   }
6603   zUser = Tcl_GetString(objv[2]);
6604   rc = sqlite3_user_delete(db, zUser);
6605   Tcl_SetResult(interp, (char *)t1ErrorName(rc), TCL_STATIC);
6606   return TCL_OK;
6607 }
6608 #endif /* SQLITE_USER_AUTHENTICATION */
6609 
6610 /*
6611 ** tclcmd: bad_behavior TYPE
6612 **
6613 ** Do some things that should trigger a valgrind or -fsanitize=undefined
6614 ** warning.  This is used to verify that errors and warnings output by those
6615 ** tools are detected by the test scripts.
6616 **
6617 **       TYPE       BEHAVIOR
6618 **       1          Overflow a signed integer
6619 **       2          Jump based on an uninitialized variable
6620 **       3          Read after free
6621 **       4          Panic
6622 */
6623 static int test_bad_behavior(
6624   ClientData clientData, /* Pointer to an integer containing zero */
6625   Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
6626   int objc,              /* Number of arguments */
6627   Tcl_Obj *CONST objv[]  /* Command arguments */
6628 ){
6629   int iType;
6630   int xyz;
6631   int i = *(int*)clientData;
6632   int j;
6633   int w[10];
6634   int *a;
6635   if( objc!=2 ){
6636     Tcl_WrongNumArgs(interp, 1, objv, "TYPE");
6637     return TCL_ERROR;
6638   }
6639   if( Tcl_GetIntFromObj(interp, objv[1], &iType) ) return TCL_ERROR;
6640   switch( iType ){
6641     case 1: {
6642       xyz = 0x7fffff00 - i;
6643       xyz += 0x100;
6644       Tcl_SetObjResult(interp, Tcl_NewIntObj(xyz));
6645       break;
6646     }
6647     case 2: {
6648       w[1] = 5;
6649       if( w[i]>0 ) w[1]++;
6650       Tcl_SetObjResult(interp, Tcl_NewIntObj(w[1]));
6651       break;
6652     }
6653     case 3: {
6654       a = malloc( sizeof(int)*10 );
6655       for(j=0; j<10; j++) a[j] = j;
6656       free(a);
6657       Tcl_SetObjResult(interp, Tcl_NewIntObj(a[i]));
6658       break;
6659     }
6660     case 4: {
6661       Tcl_Panic("Deliberate panic");
6662       break;
6663     }
6664   }
6665   return TCL_OK;
6666 }
6667 
6668 
6669 /*
6670 ** Register commands with the TCL interpreter.
6671 */
6672 int Sqlitetest1_Init(Tcl_Interp *interp){
6673   extern int sqlite3_search_count;
6674   extern int sqlite3_found_count;
6675   extern int sqlite3_interrupt_count;
6676   extern int sqlite3_open_file_count;
6677   extern int sqlite3_sort_count;
6678   extern int sqlite3_current_time;
6679 #if SQLITE_OS_UNIX && defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
6680   extern int sqlite3_hostid_num;
6681 #endif
6682   extern int sqlite3_max_blobsize;
6683   extern int sqlite3BtreeSharedCacheReport(void*,
6684                                           Tcl_Interp*,int,Tcl_Obj*CONST*);
6685   static int iZero = 0;
6686   static struct {
6687      char *zName;
6688      Tcl_CmdProc *xProc;
6689   } aCmd[] = {
6690      { "db_enter",                      (Tcl_CmdProc*)db_enter               },
6691      { "db_leave",                      (Tcl_CmdProc*)db_leave               },
6692      { "sqlite3_mprintf_int",           (Tcl_CmdProc*)sqlite3_mprintf_int    },
6693      { "sqlite3_mprintf_int64",         (Tcl_CmdProc*)sqlite3_mprintf_int64  },
6694      { "sqlite3_mprintf_long",          (Tcl_CmdProc*)sqlite3_mprintf_long   },
6695      { "sqlite3_mprintf_str",           (Tcl_CmdProc*)sqlite3_mprintf_str    },
6696      { "sqlite3_snprintf_str",          (Tcl_CmdProc*)sqlite3_snprintf_str   },
6697      { "sqlite3_mprintf_stronly",       (Tcl_CmdProc*)sqlite3_mprintf_stronly},
6698      { "sqlite3_mprintf_double",        (Tcl_CmdProc*)sqlite3_mprintf_double },
6699      { "sqlite3_mprintf_scaled",        (Tcl_CmdProc*)sqlite3_mprintf_scaled },
6700      { "sqlite3_mprintf_hexdouble",   (Tcl_CmdProc*)sqlite3_mprintf_hexdouble},
6701      { "sqlite3_mprintf_z_test",        (Tcl_CmdProc*)test_mprintf_z        },
6702      { "sqlite3_mprintf_n_test",        (Tcl_CmdProc*)test_mprintf_n        },
6703      { "sqlite3_snprintf_int",          (Tcl_CmdProc*)test_snprintf_int     },
6704      { "sqlite3_last_insert_rowid",     (Tcl_CmdProc*)test_last_rowid       },
6705      { "sqlite3_exec_printf",           (Tcl_CmdProc*)test_exec_printf      },
6706      { "sqlite3_exec_hex",              (Tcl_CmdProc*)test_exec_hex         },
6707      { "sqlite3_exec",                  (Tcl_CmdProc*)test_exec             },
6708      { "sqlite3_exec_nr",               (Tcl_CmdProc*)test_exec_nr          },
6709 #ifndef SQLITE_OMIT_GET_TABLE
6710      { "sqlite3_get_table_printf",      (Tcl_CmdProc*)test_get_table_printf },
6711 #endif
6712      { "sqlite3_close",                 (Tcl_CmdProc*)sqlite_test_close     },
6713      { "sqlite3_close_v2",              (Tcl_CmdProc*)sqlite_test_close_v2  },
6714      { "sqlite3_create_function",       (Tcl_CmdProc*)test_create_function  },
6715      { "sqlite3_create_aggregate",      (Tcl_CmdProc*)test_create_aggregate },
6716      { "sqlite_register_test_function", (Tcl_CmdProc*)test_register_func    },
6717      { "sqlite_abort",                  (Tcl_CmdProc*)sqlite_abort          },
6718      { "sqlite_bind",                   (Tcl_CmdProc*)test_bind             },
6719      { "breakpoint",                    (Tcl_CmdProc*)test_breakpoint       },
6720      { "sqlite3_key",                   (Tcl_CmdProc*)test_key              },
6721      { "sqlite3_rekey",                 (Tcl_CmdProc*)test_rekey            },
6722      { "sqlite_set_magic",              (Tcl_CmdProc*)sqlite_set_magic      },
6723      { "sqlite3_interrupt",             (Tcl_CmdProc*)test_interrupt        },
6724      { "sqlite_delete_function",        (Tcl_CmdProc*)delete_function       },
6725      { "sqlite_delete_collation",       (Tcl_CmdProc*)delete_collation      },
6726      { "sqlite3_get_autocommit",        (Tcl_CmdProc*)get_autocommit        },
6727      { "sqlite3_stack_used",            (Tcl_CmdProc*)test_stack_used       },
6728      { "sqlite3_busy_timeout",          (Tcl_CmdProc*)test_busy_timeout     },
6729      { "printf",                        (Tcl_CmdProc*)test_printf           },
6730      { "sqlite3IoTrace",              (Tcl_CmdProc*)test_io_trace         },
6731      { "clang_sanitize_address",        (Tcl_CmdProc*)clang_sanitize_address },
6732   };
6733   static struct {
6734      char *zName;
6735      Tcl_ObjCmdProc *xProc;
6736      void *clientData;
6737   } aObjCmd[] = {
6738      { "bad_behavior",                  test_bad_behavior,  (void*)&iZero },
6739      { "sqlite3_connection_pointer",    get_sqlite_pointer, 0 },
6740      { "sqlite3_bind_int",              test_bind_int,      0 },
6741      { "sqlite3_bind_zeroblob",         test_bind_zeroblob, 0 },
6742      { "sqlite3_bind_int64",            test_bind_int64,    0 },
6743      { "sqlite3_bind_double",           test_bind_double,   0 },
6744      { "sqlite3_bind_null",             test_bind_null     ,0 },
6745      { "sqlite3_bind_text",             test_bind_text     ,0 },
6746      { "sqlite3_bind_text16",           test_bind_text16   ,0 },
6747      { "sqlite3_bind_blob",             test_bind_blob     ,0 },
6748      { "sqlite3_bind_parameter_count",  test_bind_parameter_count, 0},
6749      { "sqlite3_bind_parameter_name",   test_bind_parameter_name,  0},
6750      { "sqlite3_bind_parameter_index",  test_bind_parameter_index, 0},
6751      { "sqlite3_clear_bindings",        test_clear_bindings, 0},
6752      { "sqlite3_sleep",                 test_sleep,          0},
6753      { "sqlite3_errcode",               test_errcode       ,0 },
6754      { "sqlite3_extended_errcode",      test_ex_errcode    ,0 },
6755      { "sqlite3_errmsg",                test_errmsg        ,0 },
6756      { "sqlite3_errmsg16",              test_errmsg16      ,0 },
6757      { "sqlite3_open",                  test_open          ,0 },
6758      { "sqlite3_open16",                test_open16        ,0 },
6759      { "sqlite3_open_v2",               test_open_v2       ,0 },
6760      { "sqlite3_complete16",            test_complete16    ,0 },
6761 
6762      { "sqlite3_prepare",               test_prepare       ,0 },
6763      { "sqlite3_prepare16",             test_prepare16     ,0 },
6764      { "sqlite3_prepare_v2",            test_prepare_v2    ,0 },
6765      { "sqlite3_prepare_tkt3134",       test_prepare_tkt3134, 0},
6766      { "sqlite3_prepare16_v2",          test_prepare16_v2  ,0 },
6767      { "sqlite3_finalize",              test_finalize      ,0 },
6768      { "sqlite3_stmt_status",           test_stmt_status   ,0 },
6769      { "sqlite3_reset",                 test_reset         ,0 },
6770      { "sqlite3_expired",               test_expired       ,0 },
6771      { "sqlite3_transfer_bindings",     test_transfer_bind ,0 },
6772      { "sqlite3_changes",               test_changes       ,0 },
6773      { "sqlite3_step",                  test_step          ,0 },
6774      { "sqlite3_sql",                   test_sql           ,0 },
6775      { "sqlite3_next_stmt",             test_next_stmt     ,0 },
6776      { "sqlite3_stmt_readonly",         test_stmt_readonly ,0 },
6777      { "sqlite3_stmt_busy",             test_stmt_busy     ,0 },
6778      { "uses_stmt_journal",             uses_stmt_journal ,0 },
6779 
6780      { "sqlite3_release_memory",        test_release_memory,     0},
6781      { "sqlite3_db_release_memory",     test_db_release_memory,  0},
6782      { "sqlite3_db_filename",           test_db_filename,        0},
6783      { "sqlite3_db_readonly",           test_db_readonly,        0},
6784      { "sqlite3_soft_heap_limit",       test_soft_heap_limit,    0},
6785      { "sqlite3_thread_cleanup",        test_thread_cleanup,     0},
6786      { "sqlite3_pager_refcounts",       test_pager_refcounts,    0},
6787 
6788      { "sqlite3_load_extension",        test_load_extension,     0},
6789      { "sqlite3_enable_load_extension", test_enable_load,        0},
6790      { "sqlite3_extended_result_codes", test_extended_result_codes, 0},
6791      { "sqlite3_limit",                 test_limit,                 0},
6792 
6793      { "save_prng_state",               save_prng_state,    0 },
6794      { "restore_prng_state",            restore_prng_state, 0 },
6795      { "reset_prng_state",              reset_prng_state,   0 },
6796      { "database_never_corrupt",        database_never_corrupt, 0},
6797      { "database_may_be_corrupt",       database_may_be_corrupt, 0},
6798      { "optimization_control",          optimization_control,0},
6799 #if SQLITE_OS_WIN
6800      { "lock_win32_file",               win32_file_lock,    0 },
6801      { "exists_win32_path",             win32_exists_path,  0 },
6802      { "find_win32_file",               win32_find_file,    0 },
6803      { "delete_win32_file",             win32_delete_file,  0 },
6804      { "make_win32_dir",                win32_mkdir,        0 },
6805      { "remove_win32_dir",              win32_rmdir,        0 },
6806 #endif
6807      { "tcl_objproc",                   runAsObjProc,       0 },
6808 
6809      /* sqlite3_column_*() API */
6810      { "sqlite3_column_count",          test_column_count  ,0 },
6811      { "sqlite3_data_count",            test_data_count    ,0 },
6812      { "sqlite3_column_type",           test_column_type   ,0 },
6813      { "sqlite3_column_blob",           test_column_blob   ,0 },
6814      { "sqlite3_column_double",         test_column_double ,0 },
6815      { "sqlite3_column_int64",          test_column_int64  ,0 },
6816      { "sqlite3_column_text",   test_stmt_utf8,  (void*)sqlite3_column_text },
6817      { "sqlite3_column_name",   test_stmt_utf8,  (void*)sqlite3_column_name },
6818      { "sqlite3_column_int",    test_stmt_int,   (void*)sqlite3_column_int  },
6819      { "sqlite3_column_bytes",  test_stmt_int,   (void*)sqlite3_column_bytes},
6820 #ifndef SQLITE_OMIT_DECLTYPE
6821      { "sqlite3_column_decltype",test_stmt_utf8,(void*)sqlite3_column_decltype},
6822 #endif
6823 #ifdef SQLITE_ENABLE_COLUMN_METADATA
6824 { "sqlite3_column_database_name",test_stmt_utf8,(void*)sqlite3_column_database_name},
6825 { "sqlite3_column_table_name",test_stmt_utf8,(void*)sqlite3_column_table_name},
6826 { "sqlite3_column_origin_name",test_stmt_utf8,(void*)sqlite3_column_origin_name},
6827 #endif
6828 
6829 #ifndef SQLITE_OMIT_UTF16
6830      { "sqlite3_column_bytes16", test_stmt_int, (void*)sqlite3_column_bytes16 },
6831      { "sqlite3_column_text16",  test_stmt_utf16, (void*)sqlite3_column_text16},
6832      { "sqlite3_column_name16",  test_stmt_utf16, (void*)sqlite3_column_name16},
6833      { "add_alignment_test_collations", add_alignment_test_collations, 0      },
6834 #ifndef SQLITE_OMIT_DECLTYPE
6835      { "sqlite3_column_decltype16",test_stmt_utf16,(void*)sqlite3_column_decltype16},
6836 #endif
6837 #ifdef SQLITE_ENABLE_COLUMN_METADATA
6838 {"sqlite3_column_database_name16",
6839   test_stmt_utf16, (void*)sqlite3_column_database_name16},
6840 {"sqlite3_column_table_name16", test_stmt_utf16, (void*)sqlite3_column_table_name16},
6841 {"sqlite3_column_origin_name16", test_stmt_utf16, (void*)sqlite3_column_origin_name16},
6842 #endif
6843 #endif
6844      { "sqlite3_create_collation_v2", test_create_collation_v2, 0 },
6845      { "sqlite3_global_recover",     test_global_recover, 0   },
6846      { "working_64bit_int",          working_64bit_int,   0   },
6847      { "vfs_unlink_test",            vfs_unlink_test,     0   },
6848      { "vfs_initfail_test",          vfs_initfail_test,   0   },
6849      { "vfs_unregister_all",         vfs_unregister_all,  0   },
6850      { "vfs_reregister_all",         vfs_reregister_all,  0   },
6851      { "file_control_test",          file_control_test,   0   },
6852      { "file_control_lasterrno_test", file_control_lasterrno_test,  0   },
6853      { "file_control_lockproxy_test", file_control_lockproxy_test,  0   },
6854      { "file_control_chunksize_test", file_control_chunksize_test,  0   },
6855      { "file_control_sizehint_test",  file_control_sizehint_test,   0   },
6856 #if SQLITE_OS_WIN
6857      { "file_control_win32_av_retry", file_control_win32_av_retry,  0   },
6858      { "file_control_win32_set_handle", file_control_win32_set_handle, 0  },
6859 #endif
6860      { "file_control_persist_wal",    file_control_persist_wal,     0   },
6861      { "file_control_powersafe_overwrite",file_control_powersafe_overwrite,0},
6862      { "file_control_vfsname",        file_control_vfsname,         0   },
6863      { "file_control_tempfilename",   file_control_tempfilename,    0   },
6864      { "sqlite3_vfs_list",           vfs_list,     0   },
6865      { "sqlite3_create_function_v2", test_create_function_v2, 0 },
6866 
6867      /* Functions from os.h */
6868 #ifndef SQLITE_OMIT_UTF16
6869      { "add_test_collate",        test_collate, 0            },
6870      { "add_test_collate_needed", test_collate_needed, 0     },
6871      { "add_test_function",       test_function, 0           },
6872      { "add_test_utf16bin_collate",    test_utf16bin_collate, 0        },
6873 #endif
6874      { "sqlite3_test_errstr",     test_errstr, 0             },
6875      { "tcl_variable_type",       tcl_variable_type, 0       },
6876 #ifndef SQLITE_OMIT_SHARED_CACHE
6877      { "sqlite3_enable_shared_cache", test_enable_shared, 0  },
6878      { "sqlite3_shared_cache_report", sqlite3BtreeSharedCacheReport, 0},
6879 #endif
6880      { "sqlite3_libversion_number", test_libversion_number, 0  },
6881      { "sqlite3_table_column_metadata", test_table_column_metadata, 0  },
6882 #ifndef SQLITE_OMIT_INCRBLOB
6883      { "sqlite3_blob_reopen", test_blob_reopen, 0  },
6884 #endif
6885      { "pcache_stats",       test_pcache_stats, 0  },
6886 #ifdef SQLITE_ENABLE_UNLOCK_NOTIFY
6887      { "sqlite3_unlock_notify", test_unlock_notify, 0  },
6888 #endif
6889      { "sqlite3_wal_checkpoint",   test_wal_checkpoint, 0  },
6890      { "sqlite3_wal_checkpoint_v2",test_wal_checkpoint_v2, 0  },
6891      { "sqlite3_wal_autocheckpoint",test_wal_autocheckpoint, 0  },
6892      { "test_sqlite3_log",         test_sqlite3_log, 0  },
6893 #ifndef SQLITE_OMIT_EXPLAIN
6894      { "print_explain_query_plan", test_print_eqp, 0  },
6895 #endif
6896      { "sqlite3_test_control", test_test_control },
6897 #if SQLITE_OS_UNIX
6898      { "getrusage", test_getrusage },
6899 #endif
6900      { "load_static_extension", tclLoadStaticExtensionCmd },
6901      { "sorter_test_fakeheap", sorter_test_fakeheap },
6902      { "sorter_test_sort4_helper", sorter_test_sort4_helper },
6903 #ifdef SQLITE_USER_AUTHENTICATION
6904      { "sqlite3_user_authenticate", test_user_authenticate, 0 },
6905      { "sqlite3_user_add",          test_user_add,          0 },
6906      { "sqlite3_user_change",       test_user_change,       0 },
6907      { "sqlite3_user_delete",       test_user_delete,       0 },
6908 #endif
6909 #ifdef SQLITE_ENABLE_STMT_SCANSTATUS
6910      { "sqlite3_stmt_scanstatus",       test_stmt_scanstatus,   0 },
6911      { "sqlite3_stmt_scanstatus_reset", test_stmt_scanstatus_reset,   0 },
6912 #endif
6913 
6914   };
6915   static int bitmask_size = sizeof(Bitmask)*8;
6916   int i;
6917   extern int sqlite3_sync_count, sqlite3_fullsync_count;
6918   extern int sqlite3_opentemp_count;
6919   extern int sqlite3_like_count;
6920   extern int sqlite3_xferopt_count;
6921   extern int sqlite3_pager_readdb_count;
6922   extern int sqlite3_pager_writedb_count;
6923   extern int sqlite3_pager_writej_count;
6924 #if SQLITE_OS_WIN
6925   extern LONG volatile sqlite3_os_type;
6926 #endif
6927 #ifdef SQLITE_DEBUG
6928   extern int sqlite3WhereTrace;
6929   extern int sqlite3OSTrace;
6930   extern int sqlite3WalTrace;
6931 #endif
6932 #ifdef SQLITE_TEST
6933 #ifdef SQLITE_ENABLE_FTS3
6934   extern int sqlite3_fts3_enable_parentheses;
6935 #endif
6936 #endif
6937 
6938   for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){
6939     Tcl_CreateCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);
6940   }
6941   for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
6942     Tcl_CreateObjCommand(interp, aObjCmd[i].zName,
6943         aObjCmd[i].xProc, aObjCmd[i].clientData, 0);
6944   }
6945   Tcl_LinkVar(interp, "sqlite_search_count",
6946       (char*)&sqlite3_search_count, TCL_LINK_INT);
6947   Tcl_LinkVar(interp, "sqlite_found_count",
6948       (char*)&sqlite3_found_count, TCL_LINK_INT);
6949   Tcl_LinkVar(interp, "sqlite_sort_count",
6950       (char*)&sqlite3_sort_count, TCL_LINK_INT);
6951   Tcl_LinkVar(interp, "sqlite3_max_blobsize",
6952       (char*)&sqlite3_max_blobsize, TCL_LINK_INT);
6953   Tcl_LinkVar(interp, "sqlite_like_count",
6954       (char*)&sqlite3_like_count, TCL_LINK_INT);
6955   Tcl_LinkVar(interp, "sqlite_interrupt_count",
6956       (char*)&sqlite3_interrupt_count, TCL_LINK_INT);
6957   Tcl_LinkVar(interp, "sqlite_open_file_count",
6958       (char*)&sqlite3_open_file_count, TCL_LINK_INT);
6959   Tcl_LinkVar(interp, "sqlite_current_time",
6960       (char*)&sqlite3_current_time, TCL_LINK_INT);
6961 #if SQLITE_OS_UNIX && defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE
6962   Tcl_LinkVar(interp, "sqlite_hostid_num",
6963       (char*)&sqlite3_hostid_num, TCL_LINK_INT);
6964 #endif
6965   Tcl_LinkVar(interp, "sqlite3_xferopt_count",
6966       (char*)&sqlite3_xferopt_count, TCL_LINK_INT);
6967   Tcl_LinkVar(interp, "sqlite3_pager_readdb_count",
6968       (char*)&sqlite3_pager_readdb_count, TCL_LINK_INT);
6969   Tcl_LinkVar(interp, "sqlite3_pager_writedb_count",
6970       (char*)&sqlite3_pager_writedb_count, TCL_LINK_INT);
6971   Tcl_LinkVar(interp, "sqlite3_pager_writej_count",
6972       (char*)&sqlite3_pager_writej_count, TCL_LINK_INT);
6973 #ifndef SQLITE_OMIT_UTF16
6974   Tcl_LinkVar(interp, "unaligned_string_counter",
6975       (char*)&unaligned_string_counter, TCL_LINK_INT);
6976 #endif
6977 #ifndef SQLITE_OMIT_UTF16
6978   Tcl_LinkVar(interp, "sqlite_last_needed_collation",
6979       (char*)&pzNeededCollation, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
6980 #endif
6981 #if SQLITE_OS_WIN
6982   Tcl_LinkVar(interp, "sqlite_os_type",
6983       (char*)&sqlite3_os_type, TCL_LINK_LONG);
6984 #endif
6985 #ifdef SQLITE_TEST
6986   {
6987     static const char *query_plan = "*** OBSOLETE VARIABLE ***";
6988     Tcl_LinkVar(interp, "sqlite_query_plan",
6989        (char*)&query_plan, TCL_LINK_STRING|TCL_LINK_READ_ONLY);
6990   }
6991 #endif
6992 #ifdef SQLITE_DEBUG
6993   Tcl_LinkVar(interp, "sqlite_where_trace",
6994       (char*)&sqlite3WhereTrace, TCL_LINK_INT);
6995   Tcl_LinkVar(interp, "sqlite_os_trace",
6996       (char*)&sqlite3OSTrace, TCL_LINK_INT);
6997 #ifndef SQLITE_OMIT_WAL
6998   Tcl_LinkVar(interp, "sqlite_wal_trace",
6999       (char*)&sqlite3WalTrace, TCL_LINK_INT);
7000 #endif
7001 #endif
7002 #ifndef SQLITE_OMIT_DISKIO
7003   Tcl_LinkVar(interp, "sqlite_opentemp_count",
7004       (char*)&sqlite3_opentemp_count, TCL_LINK_INT);
7005 #endif
7006   Tcl_LinkVar(interp, "sqlite_static_bind_value",
7007       (char*)&sqlite_static_bind_value, TCL_LINK_STRING);
7008   Tcl_LinkVar(interp, "sqlite_static_bind_nbyte",
7009       (char*)&sqlite_static_bind_nbyte, TCL_LINK_INT);
7010   Tcl_LinkVar(interp, "sqlite_temp_directory",
7011       (char*)&sqlite3_temp_directory, TCL_LINK_STRING);
7012   Tcl_LinkVar(interp, "sqlite_data_directory",
7013       (char*)&sqlite3_data_directory, TCL_LINK_STRING);
7014   Tcl_LinkVar(interp, "bitmask_size",
7015       (char*)&bitmask_size, TCL_LINK_INT|TCL_LINK_READ_ONLY);
7016   Tcl_LinkVar(interp, "sqlite_sync_count",
7017       (char*)&sqlite3_sync_count, TCL_LINK_INT);
7018   Tcl_LinkVar(interp, "sqlite_fullsync_count",
7019       (char*)&sqlite3_fullsync_count, TCL_LINK_INT);
7020 #if defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_TEST)
7021   Tcl_LinkVar(interp, "sqlite_fts3_enable_parentheses",
7022       (char*)&sqlite3_fts3_enable_parentheses, TCL_LINK_INT);
7023 #endif
7024   return TCL_OK;
7025 }
7026