1 /*-
2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1991, 1993, 1994, 1995, 1996
5 * Keith Bostic. All rights reserved.
6 *
7 * See the LICENSE file for redistribution information.
8 */
9
10 #include "config.h"
11
12 #ifndef lint
13 static const char sccsid[] = "$Id: options.c,v 10.73 2012/10/09 06:14:07 zy Exp $";
14 #endif /* not lint */
15
16 #include <sys/types.h>
17 #include <sys/queue.h>
18 #include <sys/stat.h>
19
20 #include <bitstring.h>
21 #include <ctype.h>
22 #include <errno.h>
23 #include <limits.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <unistd.h>
28
29 #include "common.h"
30 #include "../vi/vi.h"
31 #include "pathnames.h"
32
33 static int opts_abbcmp(const void *, const void *);
34 static int opts_cmp(const void *, const void *);
35 static int opts_print(SCR *, OPTLIST const *);
36
37 #ifdef USE_WIDECHAR
38 #define OPT_WC 0
39 #else
40 #define OPT_WC (OPT_NOSAVE | OPT_NDISP)
41 #endif
42
43 /*
44 * O'Reilly noted options and abbreviations are from "Learning the VI Editor",
45 * Fifth Edition, May 1992. There's no way of knowing what systems they are
46 * actually from.
47 *
48 * HPUX noted options and abbreviations are from "The Ultimate Guide to the
49 * VI and EX Text Editors", 1990.
50 */
51 OPTLIST const optlist[] = {
52 /* O_ALTWERASE 4.4BSD */
53 {L("altwerase"), f_altwerase, OPT_0BOOL, 0},
54 /* O_AUTOINDENT 4BSD */
55 {L("autoindent"), NULL, OPT_0BOOL, 0},
56 /* O_AUTOPRINT 4BSD */
57 {L("autoprint"), NULL, OPT_1BOOL, 0},
58 /* O_AUTOWRITE 4BSD */
59 {L("autowrite"), NULL, OPT_0BOOL, 0},
60 /* O_BACKUP 4.4BSD */
61 {L("backup"), NULL, OPT_STR, 0},
62 /* O_BEAUTIFY 4BSD */
63 {L("beautify"), NULL, OPT_0BOOL, 0},
64 /* O_CDPATH 4.4BSD */
65 {L("cdpath"), NULL, OPT_STR, 0},
66 /* O_CEDIT 4.4BSD */
67 {L("cedit"), NULL, OPT_STR, 0},
68 /* O_COLUMNS 4.4BSD */
69 {L("columns"), f_columns, OPT_NUM, OPT_NOSAVE},
70 /* O_COMBINED */
71 {L("combined"), NULL, OPT_0BOOL, OPT_NOSET|OPT_WC},
72 /* O_COMMENT 4.4BSD */
73 {L("comment"), NULL, OPT_0BOOL, 0},
74 /* O_TMPDIR 4BSD */
75 {L("directory"), NULL, OPT_STR, 0},
76 /* O_EDCOMPATIBLE 4BSD */
77 {L("edcompatible"),NULL, OPT_0BOOL, 0},
78 /* O_ERRORBELLS 4BSD */
79 {L("errorbells"), NULL, OPT_0BOOL, 0},
80 /* O_ESCAPETIME 4.4BSD */
81 {L("escapetime"), NULL, OPT_NUM, 0},
82 /* O_EXRC System V (undocumented) */
83 {L("exrc"), NULL, OPT_0BOOL, 0},
84 /* O_EXTENDED 4.4BSD */
85 {L("extended"), f_recompile, OPT_0BOOL, 0},
86 /* O_FILEC 4.4BSD */
87 {L("filec"), NULL, OPT_STR, 0},
88 /* O_FILEENCODING */
89 {L("fileencoding"),f_encoding, OPT_STR, OPT_WC},
90 /* O_FLASH HPUX */
91 {L("flash"), NULL, OPT_1BOOL, 0},
92 /* O_HARDTABS 4BSD */
93 {L("hardtabs"), NULL, OPT_NUM, 0},
94 /* O_ICLOWER 4.4BSD */
95 {L("iclower"), f_recompile, OPT_0BOOL, 0},
96 /* O_IGNORECASE 4BSD */
97 {L("ignorecase"), f_recompile, OPT_0BOOL, 0},
98 /* O_INPUTENCODING */
99 {L("inputencoding"),f_encoding, OPT_STR, OPT_WC},
100 /* O_KEYTIME 4.4BSD */
101 {L("keytime"), NULL, OPT_NUM, 0},
102 /* O_LEFTRIGHT 4.4BSD */
103 {L("leftright"), f_reformat, OPT_0BOOL, 0},
104 /* O_LINES 4.4BSD */
105 {L("lines"), f_lines, OPT_NUM, OPT_NOSAVE},
106 /* O_LISP 4BSD
107 * XXX
108 * When the lisp option is implemented, delete the OPT_NOSAVE flag,
109 * so that :mkexrc dumps it.
110 */
111 {L("lisp"), f_lisp, OPT_0BOOL, OPT_NOSAVE},
112 /* O_LIST 4BSD */
113 {L("list"), f_reformat, OPT_0BOOL, 0},
114 /* O_LOCKFILES 4.4BSD
115 * XXX
116 * Locking isn't reliable enough over NFS to require it, in addition,
117 * it's a serious startup performance problem over some remote links.
118 */
119 {L("lock"), NULL, OPT_1BOOL, 0},
120 /* O_MAGIC 4BSD */
121 {L("magic"), NULL, OPT_1BOOL, 0},
122 /* O_MATCHCHARS NetBSD 2.0 */
123 {L("matchchars"), NULL, OPT_STR, OPT_PAIRS},
124 /* O_MATCHTIME 4.4BSD */
125 {L("matchtime"), NULL, OPT_NUM, 0},
126 /* O_MESG 4BSD */
127 {L("mesg"), NULL, OPT_1BOOL, 0},
128 /* O_MODELINE 4BSD
129 * !!!
130 * This has been documented in historical systems as both "modeline"
131 * and as "modelines". Regardless of the name, this option represents
132 * a security problem of mammoth proportions, not to mention a stunning
133 * example of what your intro CS professor referred to as the perils of
134 * mixing code and data. Don't add it, or I will kill you.
135 */
136 {L("modeline"), NULL, OPT_0BOOL, OPT_NOSET},
137 /* O_MSGCAT 4.4BSD */
138 {L("msgcat"), f_msgcat, OPT_STR, 0},
139 /* O_NOPRINT 4.4BSD */
140 {L("noprint"), f_print, OPT_STR, 0},
141 /* O_NUMBER 4BSD */
142 {L("number"), f_reformat, OPT_0BOOL, 0},
143 /* O_OCTAL 4.4BSD */
144 {L("octal"), f_print, OPT_0BOOL, 0},
145 /* O_OPEN 4BSD */
146 {L("open"), NULL, OPT_1BOOL, 0},
147 /* O_OPTIMIZE 4BSD */
148 {L("optimize"), NULL, OPT_1BOOL, 0},
149 /* O_PARAGRAPHS 4BSD */
150 {L("paragraphs"), NULL, OPT_STR, OPT_PAIRS},
151 /* O_PATH 4.4BSD */
152 {L("path"), NULL, OPT_STR, 0},
153 /* O_PRINT 4.4BSD */
154 {L("print"), f_print, OPT_STR, 0},
155 /* O_PROMPT 4BSD */
156 {L("prompt"), NULL, OPT_1BOOL, 0},
157 /* O_READONLY 4BSD (undocumented) */
158 {L("readonly"), f_readonly, OPT_0BOOL, OPT_ALWAYS},
159 /* O_RECDIR 4.4BSD */
160 {L("recdir"), NULL, OPT_STR, 0},
161 /* O_REDRAW 4BSD */
162 {L("redraw"), NULL, OPT_0BOOL, 0},
163 /* O_REMAP 4BSD */
164 {L("remap"), NULL, OPT_1BOOL, 0},
165 /* O_REPORT 4BSD */
166 {L("report"), NULL, OPT_NUM, 0},
167 /* O_RULER 4.4BSD */
168 {L("ruler"), NULL, OPT_0BOOL, 0},
169 /* O_SCROLL 4BSD */
170 {L("scroll"), NULL, OPT_NUM, 0},
171 /* O_SEARCHINCR 4.4BSD */
172 {L("searchincr"), NULL, OPT_0BOOL, 0},
173 /* O_SECTIONS 4BSD */
174 {L("sections"), NULL, OPT_STR, OPT_PAIRS},
175 /* O_SECURE 4.4BSD */
176 {L("secure"), NULL, OPT_0BOOL, OPT_NOUNSET},
177 /* O_SHELL 4BSD */
178 {L("shell"), NULL, OPT_STR, 0},
179 /* O_SHELLMETA 4.4BSD */
180 {L("shellmeta"), NULL, OPT_STR, 0},
181 /* O_SHIFTWIDTH 4BSD */
182 {L("shiftwidth"), NULL, OPT_NUM, OPT_NOZERO},
183 /* O_SHOWMATCH 4BSD */
184 {L("showmatch"), NULL, OPT_0BOOL, 0},
185 /* O_SHOWMODE 4.4BSD */
186 {L("showmode"), NULL, OPT_0BOOL, 0},
187 /* O_SIDESCROLL 4.4BSD */
188 {L("sidescroll"), NULL, OPT_NUM, OPT_NOZERO},
189 /* O_SLOWOPEN 4BSD */
190 {L("slowopen"), NULL, OPT_0BOOL, 0},
191 /* O_SOURCEANY 4BSD (undocumented)
192 * !!!
193 * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they
194 * were owned by the user. The sourceany option was an undocumented
195 * feature of historic vi which permitted the startup source'ing of
196 * .exrc files the user didn't own. This is an obvious security problem,
197 * and we ignore the option.
198 */
199 {L("sourceany"), NULL, OPT_0BOOL, OPT_NOSET},
200 /* O_TABSTOP 4BSD */
201 {L("tabstop"), f_reformat, OPT_NUM, OPT_NOZERO},
202 /* O_TAGLENGTH 4BSD */
203 {L("taglength"), NULL, OPT_NUM, 0},
204 /* O_TAGS 4BSD */
205 {L("tags"), NULL, OPT_STR, 0},
206 /* O_TERM 4BSD
207 * !!!
208 * By default, the historic vi always displayed information about two
209 * options, redraw and term. Term seems sufficient.
210 */
211 {L("term"), NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE},
212 /* O_TERSE 4BSD */
213 {L("terse"), NULL, OPT_0BOOL, 0},
214 /* O_TILDEOP 4.4BSD */
215 {L("tildeop"), NULL, OPT_0BOOL, 0},
216 /* O_TIMEOUT 4BSD (undocumented) */
217 {L("timeout"), NULL, OPT_1BOOL, 0},
218 /* O_TTYWERASE 4.4BSD */
219 {L("ttywerase"), f_ttywerase, OPT_0BOOL, 0},
220 /* O_VERBOSE 4.4BSD */
221 {L("verbose"), NULL, OPT_0BOOL, 0},
222 /* O_W1200 4BSD */
223 {L("w1200"), f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
224 /* O_W300 4BSD */
225 {L("w300"), f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
226 /* O_W9600 4BSD */
227 {L("w9600"), f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
228 /* O_WARN 4BSD */
229 {L("warn"), NULL, OPT_1BOOL, 0},
230 /* O_WINDOW 4BSD */
231 {L("window"), f_window, OPT_NUM, 0},
232 /* O_WINDOWNAME 4BSD */
233 {L("windowname"), NULL, OPT_0BOOL, 0},
234 /* O_WRAPLEN 4.4BSD */
235 {L("wraplen"), NULL, OPT_NUM, 0},
236 /* O_WRAPMARGIN 4BSD */
237 {L("wrapmargin"), NULL, OPT_NUM, 0},
238 /* O_WRAPSCAN 4BSD */
239 {L("wrapscan"), NULL, OPT_1BOOL, 0},
240 /* O_WRITEANY 4BSD */
241 {L("writeany"), NULL, OPT_0BOOL, 0},
242 {NULL},
243 };
244
245 typedef struct abbrev {
246 CHAR_T *name;
247 int offset;
248 } OABBREV;
249
250 static OABBREV const abbrev[] = {
251 {L("ai"), O_AUTOINDENT}, /* 4BSD */
252 {L("ap"), O_AUTOPRINT}, /* 4BSD */
253 {L("aw"), O_AUTOWRITE}, /* 4BSD */
254 {L("bf"), O_BEAUTIFY}, /* 4BSD */
255 {L("co"), O_COLUMNS}, /* 4.4BSD */
256 {L("dir"), O_TMPDIR}, /* 4BSD */
257 {L("eb"), O_ERRORBELLS}, /* 4BSD */
258 {L("ed"), O_EDCOMPATIBLE}, /* 4BSD */
259 {L("ex"), O_EXRC}, /* System V (undocumented) */
260 {L("fe"), O_FILEENCODING},
261 {L("ht"), O_HARDTABS}, /* 4BSD */
262 {L("ic"), O_IGNORECASE}, /* 4BSD */
263 {L("ie"), O_INPUTENCODING},
264 {L("li"), O_LINES}, /* 4.4BSD */
265 {L("modelines"), O_MODELINE}, /* HPUX */
266 {L("nu"), O_NUMBER}, /* 4BSD */
267 {L("opt"), O_OPTIMIZE}, /* 4BSD */
268 {L("para"), O_PARAGRAPHS}, /* 4BSD */
269 {L("re"), O_REDRAW}, /* O'Reilly */
270 {L("ro"), O_READONLY}, /* 4BSD (undocumented) */
271 {L("scr"), O_SCROLL}, /* 4BSD (undocumented) */
272 {L("sect"), O_SECTIONS}, /* O'Reilly */
273 {L("sh"), O_SHELL}, /* 4BSD */
274 {L("slow"), O_SLOWOPEN}, /* 4BSD */
275 {L("sm"), O_SHOWMATCH}, /* 4BSD */
276 {L("smd"), O_SHOWMODE}, /* 4BSD */
277 {L("sw"), O_SHIFTWIDTH}, /* 4BSD */
278 {L("tag"), O_TAGS}, /* 4BSD (undocumented) */
279 {L("tl"), O_TAGLENGTH}, /* 4BSD */
280 {L("to"), O_TIMEOUT}, /* 4BSD (undocumented) */
281 {L("ts"), O_TABSTOP}, /* 4BSD */
282 {L("tty"), O_TERM}, /* 4BSD (undocumented) */
283 {L("ttytype"), O_TERM}, /* 4BSD (undocumented) */
284 {L("w"), O_WINDOW}, /* O'Reilly */
285 {L("wa"), O_WRITEANY}, /* 4BSD */
286 {L("wi"), O_WINDOW}, /* 4BSD (undocumented) */
287 {L("wl"), O_WRAPLEN}, /* 4.4BSD */
288 {L("wm"), O_WRAPMARGIN}, /* 4BSD */
289 {L("ws"), O_WRAPSCAN}, /* 4BSD */
290 {NULL},
291 };
292
293 /*
294 * opts_init --
295 * Initialize some of the options.
296 *
297 * PUBLIC: int opts_init(SCR *, int *);
298 */
299 int
opts_init(SCR * sp,int * oargs)300 opts_init(
301 SCR *sp,
302 int *oargs)
303 {
304 ARGS *argv[2], a, b;
305 OPTLIST const *op;
306 u_long v;
307 int cnt, optindx = 0;
308 char *s;
309 CHAR_T b2[1024];
310
311 a.bp = b2;
312 b.bp = NULL;
313 a.len = b.len = 0;
314 argv[0] = &a;
315 argv[1] = &b;
316
317 /* Set numeric and string default values. */
318 #define OI(indx, str) { \
319 a.len = STRLEN(str); \
320 if ((CHAR_T*)str != b2) /* GCC puts strings in text-space. */ \
321 (void)MEMCPY(b2, str, a.len+1); \
322 if (opts_set(sp, argv, NULL)) { \
323 optindx = indx; \
324 goto err; \
325 } \
326 }
327 /*
328 * Indirect global options to global space. Specifically, set up
329 * terminal, lines, columns first, they're used by other options.
330 * Note, don't set the flags until we've set up the indirection.
331 */
332 if (o_set(sp, O_TERM, 0, NULL, GO_TERM))
333 goto err;
334 F_SET(&sp->opts[O_TERM], OPT_GLOBAL);
335 if (o_set(sp, O_LINES, 0, NULL, GO_LINES))
336 goto err;
337 F_SET(&sp->opts[O_LINES], OPT_GLOBAL);
338 if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS))
339 goto err;
340 F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL);
341 if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE))
342 goto err;
343 F_SET(&sp->opts[O_SECURE], OPT_GLOBAL);
344
345 /* Initialize string values. */
346 (void)SPRINTF(b2, SIZE(b2),
347 L("cdpath=%s"), (s = getenv("CDPATH")) == NULL ? ":" : s);
348 OI(O_CDPATH, b2);
349 OI(O_CEDIT, L("cedit=\033"));
350
351 /*
352 * !!!
353 * Vi historically stored temporary files in /var/tmp. We store them
354 * in /tmp by default, hoping it's a memory based file system. There
355 * are two ways to change this -- the user can set either the directory
356 * option or the TMPDIR environmental variable.
357 */
358 (void)SPRINTF(b2, SIZE(b2),
359 L("directory=%s"), (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s);
360 OI(O_TMPDIR, b2);
361 OI(O_ESCAPETIME, L("escapetime=6"));
362 OI(O_FILEC, L("filec=\t"));
363 OI(O_KEYTIME, L("keytime=6"));
364 OI(O_MATCHCHARS, L("matchchars=()[]{}"));
365 OI(O_MATCHTIME, L("matchtime=7"));
366 (void)SPRINTF(b2, SIZE(b2), L("msgcat=%s"), _PATH_MSGCAT);
367 OI(O_MSGCAT, b2);
368 OI(O_REPORT, L("report=5"));
369 OI(O_PARAGRAPHS, L("paragraphs=IPLPPPQPP LIpplpipbp"));
370 (void)SPRINTF(b2, SIZE(b2), L("path=%s"), "");
371 OI(O_PATH, b2);
372 (void)SPRINTF(b2, SIZE(b2), L("recdir=%s"), _PATH_PRESERVE);
373 OI(O_RECDIR, b2);
374 OI(O_SECTIONS, L("sections=NHSHH HUnhsh"));
375 (void)SPRINTF(b2, SIZE(b2),
376 L("shell=%s"), (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s);
377 OI(O_SHELL, b2);
378 OI(O_SHELLMETA, L("shellmeta=~{[*?$`'\"\\"));
379 OI(O_SHIFTWIDTH, L("shiftwidth=8"));
380 OI(O_SIDESCROLL, L("sidescroll=16"));
381 OI(O_TABSTOP, L("tabstop=8"));
382 (void)SPRINTF(b2, SIZE(b2), L("tags=%s"), _PATH_TAGS);
383 OI(O_TAGS, b2);
384
385 /*
386 * XXX
387 * Initialize O_SCROLL here, after term; initializing term should
388 * have created a LINES/COLUMNS value.
389 */
390 if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0)
391 v = 1;
392 (void)SPRINTF(b2, SIZE(b2), L("scroll=%ld"), v);
393 OI(O_SCROLL, b2);
394
395 /*
396 * The default window option values are:
397 * 8 if baud rate <= 600
398 * 16 if baud rate <= 1200
399 * LINES - 1 if baud rate > 1200
400 *
401 * Note, the windows option code will correct any too-large value
402 * or when the O_LINES value is 1.
403 */
404 if (sp->gp->scr_baud(sp, &v))
405 return (1);
406 if (v <= 600)
407 v = 8;
408 else if (v <= 1200)
409 v = 16;
410 else if ((v = O_VAL(sp, O_LINES) - 1) == 0)
411 v = 1;
412
413 (void)SPRINTF(b2, SIZE(b2), L("window=%lu"), v);
414 OI(O_WINDOW, b2);
415
416 /*
417 * Set boolean default values, and copy all settings into the default
418 * information. OS_NOFREE is set, we're copying, not replacing.
419 */
420 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) {
421 if (F_ISSET(op, OPT_GLOBAL))
422 continue;
423 switch (op->type) {
424 case OPT_0BOOL:
425 break;
426 case OPT_1BOOL:
427 O_SET(sp, cnt);
428 O_D_SET(sp, cnt);
429 break;
430 case OPT_NUM:
431 o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt));
432 break;
433 case OPT_STR:
434 if (O_STR(sp, cnt) != NULL && o_set(sp, cnt,
435 OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0))
436 goto err;
437 break;
438 default:
439 abort();
440 }
441 }
442
443 /*
444 * !!!
445 * Some options can be initialized by the command name or the
446 * command-line arguments. They don't set the default values,
447 * it's historic practice.
448 */
449 for (; *oargs != -1; ++oargs)
450 OI(*oargs, optlist[*oargs].name);
451 #undef OI
452 return (0);
453
454 err: msgq_wstr(sp, M_ERR, optlist[optindx].name,
455 "031|Unable to set default %s option");
456 return (1);
457 }
458
459 /*
460 * opts_set --
461 * Change the values of one or more options.
462 *
463 * PUBLIC: int opts_set(SCR *, ARGS *[], char *);
464 */
465 int
opts_set(SCR * sp,ARGS * argv[],char * usage)466 opts_set(
467 SCR *sp,
468 ARGS *argv[],
469 char *usage)
470 {
471 enum optdisp disp;
472 enum nresult nret;
473 OPTLIST const *op;
474 OPTION *spo;
475 u_long isset, turnoff, value;
476 int ch, equals, nf, nf2, offset, qmark, rval;
477 CHAR_T *endp, *name, *p, *sep;
478 char *p2, *t2;
479 char *np;
480 size_t nlen;
481
482 disp = NO_DISPLAY;
483 for (rval = 0; argv[0]->len != 0; ++argv) {
484 /*
485 * The historic vi dumped the options for each occurrence of
486 * "all" in the set list. Puhleeze.
487 */
488 if (!STRCMP(argv[0]->bp, L("all"))) {
489 disp = ALL_DISPLAY;
490 continue;
491 }
492
493 /* Find equals sign or question mark. */
494 for (sep = NULL, equals = qmark = 0,
495 p = name = argv[0]->bp; (ch = *p) != '\0'; ++p)
496 if (ch == '=' || ch == '?') {
497 if (p == name) {
498 if (usage != NULL)
499 msgq(sp, M_ERR,
500 "032|Usage: %s", usage);
501 return (1);
502 }
503 sep = p;
504 if (ch == '=')
505 equals = 1;
506 else
507 qmark = 1;
508 break;
509 }
510
511 turnoff = 0;
512 op = NULL;
513 if (sep != NULL)
514 *sep++ = '\0';
515
516 /* Search for the name, then name without any leading "no". */
517 if ((op = opts_search(name)) == NULL &&
518 name[0] == 'n' && name[1] == 'o') {
519 turnoff = 1;
520 name += 2;
521 op = opts_search(name);
522 }
523 if (op == NULL) {
524 opts_nomatch(sp, name);
525 rval = 1;
526 continue;
527 }
528
529 /* Find current option values. */
530 offset = op - optlist;
531 spo = sp->opts + offset;
532
533 /*
534 * !!!
535 * Historically, the question mark could be a separate
536 * argument.
537 */
538 if (!equals && !qmark &&
539 argv[1]->len == 1 && argv[1]->bp[0] == '?') {
540 ++argv;
541 qmark = 1;
542 }
543
544 /* Set name, value. */
545 switch (op->type) {
546 case OPT_0BOOL:
547 case OPT_1BOOL:
548 /* Some options may not be reset. */
549 if (F_ISSET(op, OPT_NOUNSET) && turnoff) {
550 msgq_wstr(sp, M_ERR, name,
551 "291|set: the %s option may not be turned off");
552 rval = 1;
553 break;
554 }
555
556 /* Some options may not be set. */
557 if (F_ISSET(op, OPT_NOSET) && !turnoff) {
558 msgq_wstr(sp, M_ERR, name,
559 "313|set: the %s option may never be turned on");
560 rval = 1;
561 break;
562 }
563
564 if (equals) {
565 msgq_wstr(sp, M_ERR, name,
566 "034|set: [no]%s option doesn't take a value");
567 rval = 1;
568 break;
569 }
570 if (qmark) {
571 if (!disp)
572 disp = SELECT_DISPLAY;
573 F_SET(spo, OPT_SELECTED);
574 break;
575 }
576
577 /*
578 * Do nothing if the value is unchanged, the underlying
579 * functions can be expensive.
580 */
581 isset = !turnoff;
582 if (!F_ISSET(op, OPT_ALWAYS))
583 if (isset) {
584 if (O_ISSET(sp, offset))
585 break;
586 } else
587 if (!O_ISSET(sp, offset))
588 break;
589
590 /* Report to subsystems. */
591 if ((op->func != NULL &&
592 op->func(sp, spo, NULL, &isset)) ||
593 ex_optchange(sp, offset, NULL, &isset) ||
594 v_optchange(sp, offset, NULL, &isset) ||
595 sp->gp->scr_optchange(sp, offset, NULL, &isset)) {
596 rval = 1;
597 break;
598 }
599
600 /* Set the value. */
601 if (isset)
602 O_SET(sp, offset);
603 else
604 O_CLR(sp, offset);
605 break;
606 case OPT_NUM:
607 if (turnoff) {
608 msgq_wstr(sp, M_ERR, name,
609 "035|set: %s option isn't a boolean");
610 rval = 1;
611 break;
612 }
613 if (qmark || !equals) {
614 if (!disp)
615 disp = SELECT_DISPLAY;
616 F_SET(spo, OPT_SELECTED);
617 break;
618 }
619
620 if (!ISDIGIT(sep[0]))
621 goto badnum;
622 if ((nret =
623 nget_uslong(&value, sep, &endp, 10)) != NUM_OK) {
624 INT2CHAR(sp, name, STRLEN(name) + 1,
625 np, nlen);
626 p2 = msg_print(sp, np, &nf);
627 INT2CHAR(sp, sep, STRLEN(sep) + 1,
628 np, nlen);
629 t2 = msg_print(sp, np, &nf2);
630 switch (nret) {
631 case NUM_ERR:
632 msgq(sp, M_SYSERR,
633 "036|set: %s option: %s", p2, t2);
634 break;
635 case NUM_OVER:
636 msgq(sp, M_ERR,
637 "037|set: %s option: %s: value overflow", p2, t2);
638 break;
639 case NUM_OK:
640 case NUM_UNDER:
641 abort();
642 }
643 if (nf)
644 FREE_SPACE(sp, p2, 0);
645 if (nf2)
646 FREE_SPACE(sp, t2, 0);
647 rval = 1;
648 break;
649 }
650 if (*endp && !cmdskip(*endp)) {
651 badnum: INT2CHAR(sp, name, STRLEN(name) + 1,
652 np, nlen);
653 p2 = msg_print(sp, np, &nf);
654 INT2CHAR(sp, sep, STRLEN(sep) + 1,
655 np, nlen);
656 t2 = msg_print(sp, np, &nf2);
657 msgq(sp, M_ERR,
658 "038|set: %s option: %s is an illegal number", p2, t2);
659 if (nf)
660 FREE_SPACE(sp, p2, 0);
661 if (nf2)
662 FREE_SPACE(sp, t2, 0);
663 rval = 1;
664 break;
665 }
666
667 /* Some options may never be set to zero. */
668 if (F_ISSET(op, OPT_NOZERO) && value == 0) {
669 msgq_wstr(sp, M_ERR, name,
670 "314|set: the %s option may never be set to 0");
671 rval = 1;
672 break;
673 }
674
675 /*
676 * Do nothing if the value is unchanged, the underlying
677 * functions can be expensive.
678 */
679 if (!F_ISSET(op, OPT_ALWAYS) &&
680 O_VAL(sp, offset) == value)
681 break;
682
683 /* Report to subsystems. */
684 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
685 if ((op->func != NULL &&
686 op->func(sp, spo, np, &value)) ||
687 ex_optchange(sp, offset, np, &value) ||
688 v_optchange(sp, offset, np, &value) ||
689 sp->gp->scr_optchange(sp, offset, np, &value)) {
690 rval = 1;
691 break;
692 }
693
694 /* Set the value. */
695 if (o_set(sp, offset, 0, NULL, value))
696 rval = 1;
697 break;
698 case OPT_STR:
699 if (turnoff) {
700 msgq_wstr(sp, M_ERR, name,
701 "039|set: %s option isn't a boolean");
702 rval = 1;
703 break;
704 }
705 if (qmark || !equals) {
706 if (!disp)
707 disp = SELECT_DISPLAY;
708 F_SET(spo, OPT_SELECTED);
709 break;
710 }
711
712 /* Check for strings that must have even length. */
713 if (F_ISSET(op, OPT_PAIRS) && STRLEN(sep) & 1) {
714 msgq_wstr(sp, M_ERR, name,
715 "047|The %s option must be in two character groups");
716 rval = 1;
717 break;
718 }
719
720 /*
721 * Do nothing if the value is unchanged, the underlying
722 * functions can be expensive.
723 */
724 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
725 if (!F_ISSET(op, OPT_ALWAYS) &&
726 O_STR(sp, offset) != NULL &&
727 !strcmp(O_STR(sp, offset), np))
728 break;
729
730 /* Report to subsystems. */
731 if ((op->func != NULL &&
732 op->func(sp, spo, np, NULL)) ||
733 ex_optchange(sp, offset, np, NULL) ||
734 v_optchange(sp, offset, np, NULL) ||
735 sp->gp->scr_optchange(sp, offset, np, NULL)) {
736 rval = 1;
737 break;
738 }
739
740 /* Set the value. */
741 if (o_set(sp, offset, OS_STRDUP, np, 0))
742 rval = 1;
743 break;
744 default:
745 abort();
746 }
747 }
748 if (disp != NO_DISPLAY)
749 opts_dump(sp, disp);
750 return (rval);
751 }
752
753 /*
754 * o_set --
755 * Set an option's value.
756 *
757 * PUBLIC: int o_set(SCR *, int, u_int, char *, u_long);
758 */
759 int
o_set(SCR * sp,int opt,u_int flags,char * str,u_long val)760 o_set(
761 SCR *sp,
762 int opt,
763 u_int flags,
764 char *str,
765 u_long val)
766 {
767 OPTION *op;
768
769 /* Set a pointer to the options area. */
770 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ?
771 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt];
772
773 /* Copy the string, if requested. */
774 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) {
775 msgq(sp, M_SYSERR, NULL);
776 return (1);
777 }
778
779 /* Free the previous string, if requested, and set the value. */
780 if LF_ISSET(OS_DEF)
781 if (LF_ISSET(OS_STR | OS_STRDUP)) {
782 if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL)
783 free(op->o_def.str);
784 op->o_def.str = str;
785 } else
786 op->o_def.val = val;
787 else
788 if (LF_ISSET(OS_STR | OS_STRDUP)) {
789 if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL)
790 free(op->o_cur.str);
791 op->o_cur.str = str;
792 } else
793 op->o_cur.val = val;
794 return (0);
795 }
796
797 /*
798 * opts_empty --
799 * Return 1 if the string option is invalid, 0 if it's OK.
800 *
801 * PUBLIC: int opts_empty(SCR *, int, int);
802 */
803 int
opts_empty(SCR * sp,int off,int silent)804 opts_empty(
805 SCR *sp,
806 int off,
807 int silent)
808 {
809 char *p;
810
811 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') {
812 if (!silent)
813 msgq_wstr(sp, M_ERR, optlist[off].name,
814 "305|No %s edit option specified");
815 return (1);
816 }
817 return (0);
818 }
819
820 /*
821 * opts_dump --
822 * List the current values of selected options.
823 *
824 * PUBLIC: void opts_dump(SCR *, enum optdisp);
825 */
826 void
opts_dump(SCR * sp,enum optdisp type)827 opts_dump(
828 SCR *sp,
829 enum optdisp type)
830 {
831 OPTLIST const *op;
832 int base, b_num, cnt, col, colwidth, curlen, s_num;
833 int numcols, numrows, row;
834 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT];
835 char nbuf[20];
836
837 /*
838 * Options are output in two groups -- those that fit in a column and
839 * those that don't. Output is done on 6 character "tab" boundaries
840 * for no particular reason. (Since we don't output tab characters,
841 * we can ignore the terminal's tab settings.) Ignore the user's tab
842 * setting because we have no idea how reasonable it is.
843 *
844 * Find a column width we can live with, testing from 10 columns to 1.
845 */
846 for (numcols = 10; numcols > 1; --numcols) {
847 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1);
848 if (colwidth >= 10) {
849 colwidth =
850 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1);
851 numcols = sp->cols / colwidth;
852 break;
853 }
854 colwidth = 0;
855 }
856
857 /*
858 * Get the set of options to list, entering them into
859 * the column list or the overflow list.
860 */
861 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) {
862 cnt = op - optlist;
863
864 /* If OPT_NDISP set, it's never displayed. */
865 if (F_ISSET(op, OPT_NDISP))
866 continue;
867
868 switch (type) {
869 case ALL_DISPLAY: /* Display all. */
870 break;
871 case CHANGED_DISPLAY: /* Display changed. */
872 /* If OPT_ADISP set, it's always "changed". */
873 if (F_ISSET(op, OPT_ADISP))
874 break;
875 switch (op->type) {
876 case OPT_0BOOL:
877 case OPT_1BOOL:
878 case OPT_NUM:
879 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt))
880 continue;
881 break;
882 case OPT_STR:
883 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) ||
884 (O_D_STR(sp, cnt) != NULL &&
885 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))))
886 continue;
887 break;
888 }
889 break;
890 case SELECT_DISPLAY: /* Display selected. */
891 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED))
892 continue;
893 break;
894 default:
895 case NO_DISPLAY:
896 abort();
897 }
898 F_CLR(&sp->opts[cnt], OPT_SELECTED);
899
900 curlen = STRLEN(op->name);
901 switch (op->type) {
902 case OPT_0BOOL:
903 case OPT_1BOOL:
904 if (!O_ISSET(sp, cnt))
905 curlen += 2;
906 break;
907 case OPT_NUM:
908 (void)snprintf(nbuf,
909 sizeof(nbuf), "%ld", O_VAL(sp, cnt));
910 curlen += strlen(nbuf);
911 break;
912 case OPT_STR:
913 if (O_STR(sp, cnt) != NULL)
914 curlen += strlen(O_STR(sp, cnt));
915 curlen += 3;
916 break;
917 }
918 /* Offset by 2 so there's a gap. */
919 if (curlen <= colwidth - 2)
920 s_op[s_num++] = cnt;
921 else
922 b_op[b_num++] = cnt;
923 }
924
925 if (s_num > 0) {
926 /* Figure out the number of rows. */
927 if (s_num > numcols) {
928 numrows = s_num / numcols;
929 if (s_num % numcols)
930 ++numrows;
931 } else
932 numrows = 1;
933
934 /* Display the options in sorted order. */
935 for (row = 0; row < numrows;) {
936 for (base = row, col = 0; col < numcols; ++col) {
937 cnt = opts_print(sp, &optlist[s_op[base]]);
938 if ((base += numrows) >= s_num)
939 break;
940 (void)ex_printf(sp, "%*s",
941 (int)(colwidth - cnt), "");
942 }
943 if (++row < numrows || b_num)
944 (void)ex_puts(sp, "\n");
945 }
946 }
947
948 for (row = 0; row < b_num;) {
949 (void)opts_print(sp, &optlist[b_op[row]]);
950 if (++row < b_num)
951 (void)ex_puts(sp, "\n");
952 }
953 (void)ex_puts(sp, "\n");
954 }
955
956 /*
957 * opts_print --
958 * Print out an option.
959 */
960 static int
opts_print(SCR * sp,OPTLIST const * op)961 opts_print(
962 SCR *sp,
963 OPTLIST const *op)
964 {
965 int curlen, offset;
966
967 curlen = 0;
968 offset = op - optlist;
969 switch (op->type) {
970 case OPT_0BOOL:
971 case OPT_1BOOL:
972 curlen += ex_printf(sp,
973 "%s"WS, O_ISSET(sp, offset) ? "" : "no", op->name);
974 break;
975 case OPT_NUM:
976 curlen += ex_printf(sp, WS"=%ld", op->name, O_VAL(sp, offset));
977 break;
978 case OPT_STR:
979 curlen += ex_printf(sp, WS"=\"%s\"", op->name,
980 O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset));
981 break;
982 }
983 return (curlen);
984 }
985
986 /*
987 * opts_save --
988 * Write the current configuration to a file.
989 *
990 * PUBLIC: int opts_save(SCR *, FILE *);
991 */
992 int
opts_save(SCR * sp,FILE * fp)993 opts_save(
994 SCR *sp,
995 FILE *fp)
996 {
997 OPTLIST const *op;
998 CHAR_T ch, *p;
999 char nch, *np;
1000 int cnt;
1001
1002 for (op = optlist; op->name != NULL; ++op) {
1003 if (F_ISSET(op, OPT_NOSAVE))
1004 continue;
1005 cnt = op - optlist;
1006 switch (op->type) {
1007 case OPT_0BOOL:
1008 case OPT_1BOOL:
1009 if (O_ISSET(sp, cnt))
1010 (void)fprintf(fp, "set "WS"\n", op->name);
1011 else
1012 (void)fprintf(fp, "set no"WS"\n", op->name);
1013 break;
1014 case OPT_NUM:
1015 (void)fprintf(fp,
1016 "set "WS"=%-3ld\n", op->name, O_VAL(sp, cnt));
1017 break;
1018 case OPT_STR:
1019 if (O_STR(sp, cnt) == NULL)
1020 break;
1021 (void)fprintf(fp, "set ");
1022 for (p = op->name; (ch = *p) != '\0'; ++p) {
1023 if (cmdskip(ch) || ch == '\\')
1024 (void)putc('\\', fp);
1025 fprintf(fp, WC, ch);
1026 }
1027 (void)putc('=', fp);
1028 for (np = O_STR(sp, cnt); (nch = *np) != '\0'; ++np) {
1029 if (cmdskip(nch) || nch == '\\')
1030 (void)putc('\\', fp);
1031 (void)putc(nch, fp);
1032 }
1033 (void)putc('\n', fp);
1034 break;
1035 }
1036 if (ferror(fp)) {
1037 msgq(sp, M_SYSERR, NULL);
1038 return (1);
1039 }
1040 }
1041 return (0);
1042 }
1043
1044 /*
1045 * opts_search --
1046 * Search for an option.
1047 *
1048 * PUBLIC: OPTLIST const *opts_search(CHAR_T *);
1049 */
1050 OPTLIST const *
opts_search(CHAR_T * name)1051 opts_search(CHAR_T *name)
1052 {
1053 OPTLIST const *op, *found;
1054 OABBREV atmp, *ap;
1055 OPTLIST otmp;
1056 size_t len;
1057
1058 /* Check list of abbreviations. */
1059 atmp.name = name;
1060 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1,
1061 sizeof(OABBREV), opts_abbcmp)) != NULL)
1062 return (optlist + ap->offset);
1063
1064 /* Check list of options. */
1065 otmp.name = name;
1066 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1,
1067 sizeof(OPTLIST), opts_cmp)) != NULL)
1068 return (op);
1069
1070 /*
1071 * Check to see if the name is the prefix of one (and only one)
1072 * option. If so, return the option.
1073 */
1074 len = STRLEN(name);
1075 for (found = NULL, op = optlist; op->name != NULL; ++op) {
1076 if (op->name[0] < name[0])
1077 continue;
1078 if (op->name[0] > name[0])
1079 break;
1080 if (!MEMCMP(op->name, name, len)) {
1081 if (found != NULL)
1082 return (NULL);
1083 found = op;
1084 }
1085 }
1086 return (found);
1087 }
1088
1089 /*
1090 * opts_nomatch --
1091 * Standard nomatch error message for options.
1092 *
1093 * PUBLIC: void opts_nomatch(SCR *, CHAR_T *);
1094 */
1095 void
opts_nomatch(SCR * sp,CHAR_T * name)1096 opts_nomatch(
1097 SCR *sp,
1098 CHAR_T *name)
1099 {
1100 msgq_wstr(sp, M_ERR, name,
1101 "033|set: no %s option: 'set all' gives all option values");
1102 }
1103
1104 static int
opts_abbcmp(const void * a,const void * b)1105 opts_abbcmp(
1106 const void *a,
1107 const void *b)
1108 {
1109 return(STRCMP(((OABBREV *)a)->name, ((OABBREV *)b)->name));
1110 }
1111
1112 static int
opts_cmp(const void * a,const void * b)1113 opts_cmp(
1114 const void *a,
1115 const void *b)
1116 {
1117 return(STRCMP(((OPTLIST *)a)->name, ((OPTLIST *)b)->name));
1118 }
1119
1120 /*
1121 * opts_copy --
1122 * Copy a screen's OPTION array.
1123 *
1124 * PUBLIC: int opts_copy(SCR *, SCR *);
1125 */
1126 int
opts_copy(SCR * orig,SCR * sp)1127 opts_copy(
1128 SCR *orig,
1129 SCR *sp)
1130 {
1131 int cnt, rval;
1132
1133 /* Copy most everything without change. */
1134 memcpy(sp->opts, orig->opts, sizeof(orig->opts));
1135
1136 /* Copy the string edit options. */
1137 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1138 if (optlist[cnt].type != OPT_STR ||
1139 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1140 continue;
1141 /*
1142 * If never set, or already failed, NULL out the entries --
1143 * have to continue after failure, otherwise would have two
1144 * screens referencing the same memory.
1145 */
1146 if (rval || O_STR(sp, cnt) == NULL) {
1147 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0);
1148 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1149 continue;
1150 }
1151
1152 /* Copy the current string. */
1153 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) {
1154 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1155 goto nomem;
1156 }
1157
1158 /* Copy the default string. */
1159 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt,
1160 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) {
1161 nomem: msgq(orig, M_SYSERR, NULL);
1162 rval = 1;
1163 }
1164 }
1165 return (rval);
1166 }
1167
1168 /*
1169 * opts_free --
1170 * Free all option strings
1171 *
1172 * PUBLIC: void opts_free(SCR *);
1173 */
1174 void
opts_free(SCR * sp)1175 opts_free(SCR *sp)
1176 {
1177 int cnt;
1178
1179 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1180 if (optlist[cnt].type != OPT_STR ||
1181 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1182 continue;
1183 if (O_STR(sp, cnt) != NULL)
1184 free(O_STR(sp, cnt));
1185 if (O_D_STR(sp, cnt) != NULL)
1186 free(O_D_STR(sp, cnt));
1187 }
1188 }
1189