1 /*
2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user.
8 *
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12 *
13 * Sun RPC is provided with no support and without any obligation on the
14 * part of Sun Microsystems, Inc. to assist in its use, correction,
15 * modification or enhancement.
16 *
17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19 * OR ANY PART THEREOF.
20 *
21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22 * or profits or other special, indirect and consequential damages, even if
23 * Sun has been advised of the possibility of such damages.
24 *
25 * Sun Microsystems, Inc.
26 * 2550 Garcia Avenue
27 * Mountain View, California 94043
28 */
29
30 #if 0
31 #ifndef lint
32 #ident "@(#)rpc_hout.c 1.16 94/04/25 SMI"
33 static char sccsid[] = "@(#)rpc_hout.c 1.12 89/02/22 (C) 1987 SMI";
34 #endif
35 #endif
36
37 #include <sys/cdefs.h>
38 /*
39 * rpc_hout.c, Header file outputter for the RPC protocol compiler
40 * Copyright (C) 1987, Sun Microsystems, Inc.
41 */
42 #include <stdio.h>
43 #include <ctype.h>
44 #include "rpc_parse.h"
45 #include "rpc_scan.h"
46 #include "rpc_util.h"
47
48 void storexdrfuncdecl(const char *, int );
49 static void pconstdef( definition * );
50 static void pstructdef( definition * );
51 static void puniondef( definition * );
52 static void pprogramdef( definition *, int );
53 static void penumdef( definition * );
54 static void ptypedef( definition * );
55 static void pdefine(const char *, const char *);
56 static int undefined2(const char *, const char *);
57 static void parglist(proc_list *, const char *);
58 static void pprocdef(proc_list *, version_list *, const char *, int);
59
60 /*
61 * Print the C-version of an xdr definition
62 */
63 void
print_datadef(definition * def,int headeronly)64 print_datadef(definition *def, int headeronly)
65 {
66
67 if (def->def_kind == DEF_PROGRAM) /* handle data only */
68 return;
69
70 if (def->def_kind != DEF_CONST) {
71 f_print(fout, "\n");
72 }
73 switch (def->def_kind) {
74 case DEF_STRUCT:
75 pstructdef(def);
76 break;
77 case DEF_UNION:
78 puniondef(def);
79 break;
80 case DEF_ENUM:
81 penumdef(def);
82 break;
83 case DEF_TYPEDEF:
84 ptypedef(def);
85 break;
86 case DEF_PROGRAM:
87 pprogramdef(def, headeronly);
88 break;
89 case DEF_CONST:
90 pconstdef(def);
91 break;
92 }
93 if (def->def_kind != DEF_PROGRAM && def->def_kind != DEF_CONST) {
94 storexdrfuncdecl(def->def_name,
95 def->def_kind != DEF_TYPEDEF ||
96 !isvectordef(def->def.ty.old_type,
97 def->def.ty.rel));
98 }
99 }
100
101
102 void
print_funcdef(definition * def,int headeronly)103 print_funcdef(definition *def, int headeronly)
104 {
105 switch (def->def_kind) {
106 case DEF_PROGRAM:
107 f_print(fout, "\n");
108 pprogramdef(def, headeronly);
109 break;
110 default:
111 break;
112 }
113 }
114
115 /* store away enough information to allow the XDR functions to be spat
116 out at the end of the file */
117
118 void
storexdrfuncdecl(const char * name,int pointerp)119 storexdrfuncdecl(const char *name, int pointerp)
120 {
121 xdrfunc * xdrptr;
122
123 xdrptr = XALLOC(struct xdrfunc);
124
125 xdrptr->name = name;
126 xdrptr->pointerp = pointerp;
127 xdrptr->next = NULL;
128
129 if (xdrfunc_tail == NULL){
130 xdrfunc_head = xdrptr;
131 xdrfunc_tail = xdrptr;
132 } else {
133 xdrfunc_tail->next = xdrptr;
134 xdrfunc_tail = xdrptr;
135 }
136
137
138 }
139
140 void
print_xdr_func_def(const char * name,int pointerp)141 print_xdr_func_def(const char *name, int pointerp)
142 {
143 f_print(fout, "extern bool_t xdr_%s(XDR *, %s%s);\n", name,
144 name, pointerp ? "*" : "");
145 }
146
147
148 static void
pconstdef(definition * def)149 pconstdef(definition *def)
150 {
151 pdefine(def->def_name, def->def.co);
152 }
153
154 /* print out the definitions for the arguments of functions in the
155 header file
156 */
157 static void
pargdef(definition * def)158 pargdef(definition *def)
159 {
160 decl_list *l;
161 version_list *vers;
162 char *name;
163 proc_list *plist;
164
165
166 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
167 for (plist = vers->procs; plist != NULL;
168 plist = plist->next) {
169
170 if (!newstyle || plist->arg_num < 2) {
171 continue; /* old style or single args */
172 }
173 name = plist->args.argname;
174 f_print(fout, "struct %s {\n", name);
175 for (l = plist->args.decls;
176 l != NULL; l = l->next) {
177 pdeclaration(name, &l->decl, 1,
178 ";\n");
179 }
180 f_print(fout, "};\n");
181 f_print(fout, "typedef struct %s %s;\n",
182 name, name);
183 storexdrfuncdecl(name, 1);
184 f_print(fout, "\n");
185 }
186 }
187 }
188
189
190 static void
pstructdef(definition * def)191 pstructdef(definition *def)
192 {
193 decl_list *l;
194 const char *name = def->def_name;
195
196 f_print(fout, "struct %s {\n", name);
197 for (l = def->def.st.decls; l != NULL; l = l->next) {
198 pdeclaration(name, &l->decl, 1, ";\n");
199 }
200 f_print(fout, "};\n");
201 f_print(fout, "typedef struct %s %s;\n", name, name);
202 }
203
204 static void
puniondef(definition * def)205 puniondef(definition *def)
206 {
207 case_list *l;
208 const char *name = def->def_name;
209 declaration *decl;
210
211 f_print(fout, "struct %s {\n", name);
212 decl = &def->def.un.enum_decl;
213 if (streq(decl->type, "bool")) {
214 f_print(fout, "\tbool_t %s;\n", decl->name);
215 } else {
216 f_print(fout, "\t%s %s;\n", decl->type, decl->name);
217 }
218 f_print(fout, "\tunion {\n");
219 for (l = def->def.un.cases; l != NULL; l = l->next) {
220 if (l->contflag == 0)
221 pdeclaration(name, &l->case_decl, 2, ";\n");
222 }
223 decl = def->def.un.default_decl;
224 if (decl && !streq(decl->type, "void")) {
225 pdeclaration(name, decl, 2, ";\n");
226 }
227 f_print(fout, "\t} %s_u;\n", name);
228 f_print(fout, "};\n");
229 f_print(fout, "typedef struct %s %s;\n", name, name);
230 }
231
232 static void
pdefine(const char * name,const char * num)233 pdefine(const char *name, const char *num)
234 {
235 f_print(fout, "#define\t%s %s\n", name, num);
236 }
237
238 static void
puldefine(const char * name,const char * num)239 puldefine(const char *name, const char *num)
240 {
241 f_print(fout, "#define\t%s ((unsigned long)(%s))\n", name, num);
242 }
243
244 static int
define_printed(proc_list * stop,version_list * start)245 define_printed(proc_list *stop, version_list *start)
246 {
247 version_list *vers;
248 proc_list *proc;
249
250 for (vers = start; vers != NULL; vers = vers->next) {
251 for (proc = vers->procs; proc != NULL; proc = proc->next) {
252 if (proc == stop) {
253 return (0);
254 } else if (streq(proc->proc_name, stop->proc_name)) {
255 return (1);
256 }
257 }
258 }
259 abort();
260 /* NOTREACHED */
261 }
262
263 static void
pfreeprocdef(const char * name,const char * vers)264 pfreeprocdef(const char * name, const char *vers)
265 {
266 f_print(fout, "extern int ");
267 pvname(name, vers);
268 f_print(fout, "_freeresult(SVCXPRT *, xdrproc_t, caddr_t);\n");
269 }
270
271 static void
pdispatch(const char * name,const char * vers)272 pdispatch(const char * name, const char *vers)
273 {
274
275 f_print(fout, "void ");
276 pvname(name, vers);
277 f_print(fout, "(struct svc_req *rqstp, SVCXPRT *transp);\n");
278 }
279
280 static void
pprogramdef(definition * def,int headeronly)281 pprogramdef(definition *def, int headeronly)
282 {
283 version_list *vers;
284 proc_list *proc;
285 const char *ext;
286
287 pargdef(def);
288
289 puldefine(def->def_name, def->def.pr.prog_num);
290 for (vers = def->def.pr.versions; vers != NULL; vers = vers->next) {
291 if (tblflag) {
292 f_print(fout,
293 "extern struct rpcgen_table %s_%s_table[];\n",
294 locase(def->def_name), vers->vers_num);
295 f_print(fout,
296 "extern %s_%s_nproc;\n",
297 locase(def->def_name), vers->vers_num);
298 }
299 puldefine(vers->vers_name, vers->vers_num);
300
301 f_print(fout, "\n");
302 ext = "extern ";
303 if (headeronly) {
304 f_print(fout, "%s", ext);
305 pdispatch(def->def_name, vers->vers_num);
306 }
307 for (proc = vers->procs; proc != NULL; proc = proc->next) {
308 if (!define_printed(proc, def->def.pr.versions)) {
309 puldefine(proc->proc_name, proc->proc_num);
310 }
311 f_print(fout, "%s", ext);
312 pprocdef(proc, vers, "CLIENT *", 0);
313 f_print(fout, "%s", ext);
314 pprocdef(proc, vers, "struct svc_req *", 1);
315 }
316 pfreeprocdef(def->def_name, vers->vers_num);
317 }
318 }
319
320 static void
pprocdef(proc_list * proc,version_list * vp,const char * addargtype,int server_p)321 pprocdef(proc_list *proc, version_list *vp, const char *addargtype, int server_p)
322 {
323 if (mtflag) {/* Print MT style stubs */
324 if (server_p)
325 f_print(fout, "bool_t ");
326 else
327 f_print(fout, "enum clnt_stat ");
328 } else {
329 ptype(proc->res_prefix, proc->res_type, 1);
330 f_print(fout, "* ");
331 }
332 if (server_p)
333 pvname_svc(proc->proc_name, vp->vers_num);
334 else
335 pvname(proc->proc_name, vp->vers_num);
336
337 parglist(proc, addargtype);
338 }
339
340
341
342 /* print out argument list of procedure */
343 static void
parglist(proc_list * proc,const char * addargtype)344 parglist(proc_list *proc, const char *addargtype)
345 {
346 decl_list *dl;
347
348 f_print(fout, "(");
349 if (proc->arg_num < 2 && newstyle &&
350 streq(proc->args.decls->decl.type, "void")) {
351 /* 0 argument in new style: do nothing*/
352 }
353 else {
354 for (dl = proc->args.decls; dl != NULL; dl = dl->next) {
355 ptype(dl->decl.prefix, dl->decl.type, 1);
356 if (!newstyle)
357 f_print(fout, "*");
358 /* old style passes by reference */
359 f_print(fout, ", ");
360 }
361 }
362
363 if (mtflag) {
364 ptype(proc->res_prefix, proc->res_type, 1);
365 f_print(fout, "*, ");
366 }
367
368 f_print(fout, "%s);\n", addargtype);
369
370 }
371
372 static void
penumdef(definition * def)373 penumdef(definition *def)
374 {
375 const char *name = def->def_name;
376 enumval_list *l;
377 const char *last = NULL;
378 int count = 0;
379
380 f_print(fout, "enum %s {\n", name);
381 for (l = def->def.en.vals; l != NULL; l = l->next) {
382 f_print(fout, "\t%s", l->name);
383 if (l->assignment) {
384 f_print(fout, " = %s", l->assignment);
385 last = l->assignment;
386 count = 1;
387 } else {
388 if (last == NULL) {
389 f_print(fout, " = %d", count++);
390 } else {
391 f_print(fout, " = %s + %d", last, count++);
392 }
393 }
394 if (l->next)
395 f_print(fout, ",\n");
396 else
397 f_print(fout, "\n");
398 }
399 f_print(fout, "};\n");
400 f_print(fout, "typedef enum %s %s;\n", name, name);
401 }
402
403 static void
ptypedef(definition * def)404 ptypedef(definition *def)
405 {
406 const char *name = def->def_name;
407 const char *old = def->def.ty.old_type;
408 char prefix[8]; /* enough to contain "struct ", including NUL */
409 relation rel = def->def.ty.rel;
410
411
412 if (!streq(name, old)) {
413 if (streq(old, "string")) {
414 old = "char";
415 rel = REL_POINTER;
416 } else if (streq(old, "opaque")) {
417 old = "char";
418 } else if (streq(old, "bool")) {
419 old = "bool_t";
420 }
421 if (undefined2(old, name) && def->def.ty.old_prefix) {
422 s_print(prefix, "%s ", def->def.ty.old_prefix);
423 } else {
424 prefix[0] = 0;
425 }
426 f_print(fout, "typedef ");
427 switch (rel) {
428 case REL_ARRAY:
429 f_print(fout, "struct {\n");
430 f_print(fout, "\tu_int %s_len;\n", name);
431 f_print(fout, "\t%s%s *%s_val;\n", prefix, old, name);
432 f_print(fout, "} %s", name);
433 break;
434 case REL_POINTER:
435 f_print(fout, "%s%s *%s", prefix, old, name);
436 break;
437 case REL_VECTOR:
438 f_print(fout, "%s%s %s[%s]", prefix, old, name,
439 def->def.ty.array_max);
440 break;
441 case REL_ALIAS:
442 f_print(fout, "%s%s %s", prefix, old, name);
443 break;
444 }
445 f_print(fout, ";\n");
446 }
447 }
448
449 void
pdeclaration(const char * name,declaration * dec,int tab,const char * separator)450 pdeclaration(const char *name, declaration *dec, int tab, const char *separator)
451 {
452 char buf[8]; /* enough to hold "struct ", include NUL */
453 const char *prefix;
454 const char *type;
455
456 if (streq(dec->type, "void")) {
457 return;
458 }
459 tabify(fout, tab);
460 if (streq(dec->type, name) && !dec->prefix) {
461 f_print(fout, "struct ");
462 }
463 if (streq(dec->type, "string")) {
464 f_print(fout, "char *%s", dec->name);
465 } else {
466 prefix = "";
467 if (streq(dec->type, "bool")) {
468 type = "bool_t";
469 } else if (streq(dec->type, "opaque")) {
470 type = "char";
471 } else {
472 if (dec->prefix) {
473 s_print(buf, "%s ", dec->prefix);
474 prefix = buf;
475 }
476 type = dec->type;
477 }
478 switch (dec->rel) {
479 case REL_ALIAS:
480 f_print(fout, "%s%s %s", prefix, type, dec->name);
481 break;
482 case REL_VECTOR:
483 f_print(fout, "%s%s %s[%s]", prefix, type, dec->name,
484 dec->array_max);
485 break;
486 case REL_POINTER:
487 f_print(fout, "%s%s *%s", prefix, type, dec->name);
488 break;
489 case REL_ARRAY:
490 f_print(fout, "struct {\n");
491 tabify(fout, tab);
492 f_print(fout, "\tu_int %s_len;\n", dec->name);
493 tabify(fout, tab);
494 f_print(fout,
495 "\t%s%s *%s_val;\n", prefix, type, dec->name);
496 tabify(fout, tab);
497 f_print(fout, "} %s", dec->name);
498 break;
499 }
500 }
501 fputs(separator, fout);
502 }
503
504 static int
undefined2(const char * type,const char * stop)505 undefined2(const char *type, const char *stop)
506 {
507 list *l;
508 definition *def;
509
510 for (l = defined; l != NULL; l = l->next) {
511 def = (definition *) l->val;
512 if (def->def_kind != DEF_PROGRAM) {
513 if (streq(def->def_name, stop)) {
514 return (1);
515 } else if (streq(def->def_name, type)) {
516 return (0);
517 }
518 }
519 }
520 return (1);
521 }
522