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 #include <sys/types.h>
13 #include <sys/queue.h>
14 #include <sys/stat.h>
15
16 #include <bitstring.h>
17 #include <ctype.h>
18 #include <errno.h>
19 #include <limits.h>
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <unctrl.h>
24 #include <unistd.h>
25
26 #include "common.h"
27 #include "../vi/vi.h"
28 #include "pathnames.h"
29
30 static int opts_abbcmp(const void *, const void *);
31 static int opts_cmp(const void *, const void *);
32 static int opts_print(SCR *, OPTLIST const *);
33
34 #ifdef USE_WIDECHAR
35 #define OPT_WC 0
36 #else
37 #define OPT_WC (OPT_NOSAVE | OPT_NDISP)
38 #endif
39
40 /*
41 * O'Reilly noted options and abbreviations are from "Learning the VI Editor",
42 * Fifth Edition, May 1992. There's no way of knowing what systems they are
43 * actually from.
44 *
45 * HPUX noted options and abbreviations are from "The Ultimate Guide to the
46 * VI and EX Text Editors", 1990.
47 */
48 OPTLIST const optlist[] = {
49 /* O_ALTWERASE 4.4BSD */
50 {L("altwerase"), f_altwerase, OPT_0BOOL, 0},
51 /* O_AUTOINDENT 4BSD */
52 {L("autoindent"), NULL, OPT_0BOOL, 0},
53 /* O_AUTOPRINT 4BSD */
54 {L("autoprint"), NULL, OPT_1BOOL, 0},
55 /* O_AUTOWRITE 4BSD */
56 {L("autowrite"), NULL, OPT_0BOOL, 0},
57 /* O_BACKUP 4.4BSD */
58 {L("backup"), NULL, OPT_STR, 0},
59 /* O_BEAUTIFY 4BSD */
60 {L("beautify"), NULL, OPT_0BOOL, 0},
61 /* O_CDPATH 4.4BSD */
62 {L("cdpath"), NULL, OPT_STR, 0},
63 /* O_CEDIT 4.4BSD */
64 {L("cedit"), NULL, OPT_STR, 0},
65 /* O_COLUMNS 4.4BSD */
66 {L("columns"), f_columns, OPT_NUM, OPT_NOSAVE},
67 /* O_COMBINED */
68 {L("combined"), NULL, OPT_0BOOL, OPT_NOSET|OPT_WC},
69 /* O_COMMENT 4.4BSD */
70 {L("comment"), NULL, OPT_0BOOL, 0},
71 /* O_TMPDIR 4BSD */
72 {L("directory"), NULL, OPT_STR, 0},
73 /* O_EDCOMPATIBLE 4BSD */
74 {L("edcompatible"),NULL, OPT_0BOOL, 0},
75 /* O_ERRORBELLS 4BSD */
76 {L("errorbells"), NULL, OPT_0BOOL, 0},
77 /* O_ESCAPETIME 4.4BSD */
78 {L("escapetime"), NULL, OPT_NUM, 0},
79 /* O_EXPANDTAB NetBSD 5.0 */
80 {L("expandtab"), NULL, OPT_0BOOL, 0},
81 /* O_EXRC System V (undocumented) */
82 {L("exrc"), NULL, OPT_0BOOL, 0},
83 /* O_EXTENDED 4.4BSD */
84 {L("extended"), f_recompile, OPT_0BOOL, 0},
85 /* O_FILEC 4.4BSD */
86 {L("filec"), NULL, OPT_STR, 0},
87 /* O_FILEENCODING */
88 {L("fileencoding"),f_encoding, OPT_STR, OPT_WC},
89 /* O_FLASH HPUX */
90 {L("flash"), NULL, OPT_1BOOL, 0},
91 /* O_HARDTABS 4BSD */
92 {L("hardtabs"), NULL, OPT_NUM, 0},
93 /* O_ICLOWER 4.4BSD */
94 {L("iclower"), f_recompile, OPT_0BOOL, 0},
95 /* O_IGNORECASE 4BSD */
96 {L("ignorecase"), f_recompile, OPT_0BOOL, 0},
97 /* O_INPUTENCODING */
98 {L("inputencoding"),f_encoding, OPT_STR, OPT_WC},
99 /* O_KEYTIME 4.4BSD */
100 {L("keytime"), NULL, OPT_NUM, 0},
101 /* O_LEFTRIGHT 4.4BSD */
102 {L("leftright"), f_reformat, OPT_0BOOL, 0},
103 /* O_LINES 4.4BSD */
104 {L("lines"), f_lines, OPT_NUM, OPT_NOSAVE},
105 /* O_LISP 4BSD
106 * XXX
107 * When the lisp option is implemented, delete the OPT_NOSAVE flag,
108 * so that :mkexrc dumps it.
109 */
110 {L("lisp"), f_lisp, OPT_0BOOL, OPT_NOSAVE},
111 /* O_LIST 4BSD */
112 {L("list"), f_reformat, OPT_0BOOL, 0},
113 /* O_LOCKFILES 4.4BSD
114 * XXX
115 * Locking isn't reliable enough over NFS to require it, in addition,
116 * it's a serious startup performance problem over some remote links.
117 */
118 {L("lock"), NULL, OPT_1BOOL, 0},
119 /* O_MAGIC 4BSD */
120 {L("magic"), NULL, OPT_1BOOL, 0},
121 /* O_MATCHCHARS NetBSD 2.0 */
122 {L("matchchars"), NULL, OPT_STR, OPT_PAIRS},
123 /* O_MATCHTIME 4.4BSD */
124 {L("matchtime"), NULL, OPT_NUM, 0},
125 /* O_MESG 4BSD */
126 {L("mesg"), NULL, OPT_1BOOL, 0},
127 /* O_MODELINE 4BSD
128 * !!!
129 * This has been documented in historical systems as both "modeline"
130 * and as "modelines". Regardless of the name, this option represents
131 * a security problem of mammoth proportions, not to mention a stunning
132 * example of what your intro CS professor referred to as the perils of
133 * mixing code and data. Don't add it, or I will kill you.
134 */
135 {L("modeline"), NULL, OPT_0BOOL, OPT_NOSET},
136 /* O_MSGCAT 4.4BSD */
137 {L("msgcat"), f_msgcat, OPT_STR, 0},
138 /* O_NOPRINT 4.4BSD */
139 {L("noprint"), f_print, OPT_STR, 0},
140 /* O_NUMBER 4BSD */
141 {L("number"), f_reformat, OPT_0BOOL, 0},
142 /* O_OCTAL 4.4BSD */
143 {L("octal"), f_print, OPT_0BOOL, 0},
144 /* O_OPEN 4BSD */
145 {L("open"), NULL, OPT_1BOOL, 0},
146 /* O_OPTIMIZE 4BSD */
147 {L("optimize"), NULL, OPT_1BOOL, 0},
148 /* O_PARAGRAPHS 4BSD */
149 {L("paragraphs"), NULL, OPT_STR, OPT_PAIRS},
150 /* O_PATH 4.4BSD */
151 {L("path"), NULL, OPT_STR, 0},
152 /* O_PRINT 4.4BSD */
153 {L("print"), f_print, OPT_STR, 0},
154 /* O_PROMPT 4BSD */
155 {L("prompt"), NULL, OPT_1BOOL, 0},
156 /* O_READONLY 4BSD (undocumented) */
157 {L("readonly"), f_readonly, OPT_0BOOL, OPT_ALWAYS},
158 /* O_RECDIR 4.4BSD */
159 {L("recdir"), NULL, OPT_STR, 0},
160 /* O_REDRAW 4BSD */
161 {L("redraw"), NULL, OPT_0BOOL, 0},
162 /* O_REMAP 4BSD */
163 {L("remap"), NULL, OPT_1BOOL, 0},
164 /* O_REPORT 4BSD */
165 {L("report"), NULL, OPT_NUM, 0},
166 /* O_RULER 4.4BSD */
167 {L("ruler"), NULL, OPT_0BOOL, 0},
168 /* O_SCROLL 4BSD */
169 {L("scroll"), NULL, OPT_NUM, 0},
170 /* O_SEARCHINCR 4.4BSD */
171 {L("searchincr"), NULL, OPT_0BOOL, 0},
172 /* O_SECTIONS 4BSD */
173 {L("sections"), NULL, OPT_STR, OPT_PAIRS},
174 /* O_SECURE 4.4BSD */
175 {L("secure"), NULL, OPT_0BOOL, OPT_NOUNSET},
176 /* O_SHELL 4BSD */
177 {L("shell"), NULL, OPT_STR, 0},
178 /* O_SHELLMETA 4.4BSD */
179 {L("shellmeta"), NULL, OPT_STR, 0},
180 /* O_SHIFTWIDTH 4BSD */
181 {L("shiftwidth"), NULL, OPT_NUM, OPT_NOZERO},
182 /* O_SHOWMATCH 4BSD */
183 {L("showmatch"), NULL, OPT_0BOOL, 0},
184 /* O_SHOWMODE 4.4BSD */
185 {L("showmode"), NULL, OPT_0BOOL, 0},
186 /* O_SIDESCROLL 4.4BSD */
187 {L("sidescroll"), NULL, OPT_NUM, OPT_NOZERO},
188 /* O_SLOWOPEN 4BSD */
189 {L("slowopen"), NULL, OPT_0BOOL, 0},
190 /* O_SOURCEANY 4BSD (undocumented)
191 * !!!
192 * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they
193 * were owned by the user. The sourceany option was an undocumented
194 * feature of historic vi which permitted the startup source'ing of
195 * .exrc files the user didn't own. This is an obvious security problem,
196 * and we ignore the option.
197 */
198 {L("sourceany"), NULL, OPT_0BOOL, OPT_NOSET},
199 /* O_TABSTOP 4BSD */
200 {L("tabstop"), f_reformat, OPT_NUM, OPT_NOZERO},
201 /* O_TAGLENGTH 4BSD */
202 {L("taglength"), NULL, OPT_NUM, 0},
203 /* O_TAGS 4BSD */
204 {L("tags"), NULL, OPT_STR, 0},
205 /* O_TERM 4BSD
206 * !!!
207 * By default, the historic vi always displayed information about two
208 * options, redraw and term. Term seems sufficient.
209 */
210 {L("term"), NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE},
211 /* O_TERSE 4BSD */
212 {L("terse"), NULL, OPT_0BOOL, 0},
213 /* O_TILDEOP 4.4BSD */
214 {L("tildeop"), NULL, OPT_0BOOL, 0},
215 /* O_TIMEOUT 4BSD (undocumented) */
216 {L("timeout"), NULL, OPT_1BOOL, 0},
217 /* O_TTYWERASE 4.4BSD */
218 {L("ttywerase"), f_ttywerase, OPT_0BOOL, 0},
219 /* O_VERBOSE 4.4BSD */
220 {L("verbose"), NULL, OPT_0BOOL, 0},
221 /* O_W1200 4BSD */
222 {L("w1200"), f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
223 /* O_W300 4BSD */
224 {L("w300"), f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
225 /* O_W9600 4BSD */
226 {L("w9600"), f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
227 /* O_WARN 4BSD */
228 {L("warn"), NULL, OPT_1BOOL, 0},
229 /* O_WINDOW 4BSD */
230 {L("window"), f_window, OPT_NUM, 0},
231 /* O_WINDOWNAME 4BSD */
232 {L("windowname"), NULL, OPT_0BOOL, 0},
233 /* O_WRAPLEN 4.4BSD */
234 {L("wraplen"), NULL, OPT_NUM, 0},
235 /* O_WRAPMARGIN 4BSD */
236 {L("wrapmargin"), NULL, OPT_NUM, 0},
237 /* O_WRAPSCAN 4BSD */
238 {L("wrapscan"), NULL, OPT_1BOOL, 0},
239 /* O_WRITEANY 4BSD */
240 {L("writeany"), NULL, OPT_0BOOL, 0},
241 {NULL},
242 };
243
244 typedef struct abbrev {
245 CHAR_T *name;
246 int offset;
247 } OABBREV;
248
249 static OABBREV const abbrev[] = {
250 {L("ai"), O_AUTOINDENT}, /* 4BSD */
251 {L("ap"), O_AUTOPRINT}, /* 4BSD */
252 {L("aw"), O_AUTOWRITE}, /* 4BSD */
253 {L("bf"), O_BEAUTIFY}, /* 4BSD */
254 {L("co"), O_COLUMNS}, /* 4.4BSD */
255 {L("dir"), O_TMPDIR}, /* 4BSD */
256 {L("eb"), O_ERRORBELLS}, /* 4BSD */
257 {L("ed"), O_EDCOMPATIBLE}, /* 4BSD */
258 {L("et"), O_EXPANDTAB}, /* NetBSD 5.0 */
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(SCR *sp, int *oargs)
301 {
302 ARGS *argv[2], a, b;
303 OPTLIST const *op;
304 u_long v;
305 int cnt, optindx = 0;
306 char *s;
307 CHAR_T b2[1024];
308
309 a.bp = b2;
310 b.bp = NULL;
311 a.len = b.len = 0;
312 argv[0] = &a;
313 argv[1] = &b;
314
315 /* Set numeric and string default values. */
316 #define OI(indx, str) { \
317 a.len = STRLEN(str); \
318 if ((CHAR_T*)str != b2) /* GCC puts strings in text-space. */ \
319 (void)MEMCPY(b2, str, a.len+1); \
320 if (opts_set(sp, argv, NULL)) { \
321 optindx = indx; \
322 goto err; \
323 } \
324 }
325 /*
326 * Indirect global options to global space. Specifically, set up
327 * terminal, lines, columns first, they're used by other options.
328 * Note, don't set the flags until we've set up the indirection.
329 */
330 if (o_set(sp, O_TERM, 0, NULL, GO_TERM))
331 goto err;
332 F_SET(&sp->opts[O_TERM], OPT_GLOBAL);
333 if (o_set(sp, O_LINES, 0, NULL, GO_LINES))
334 goto err;
335 F_SET(&sp->opts[O_LINES], OPT_GLOBAL);
336 if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS))
337 goto err;
338 F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL);
339 if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE))
340 goto err;
341 F_SET(&sp->opts[O_SECURE], OPT_GLOBAL);
342
343 /* Initialize string values. */
344 (void)SPRINTF(b2, SIZE(b2),
345 L("cdpath=%s"), (s = getenv("CDPATH")) == NULL ? ":" : s);
346 OI(O_CDPATH, b2);
347 OI(O_CEDIT, L("cedit=\033"));
348
349 /*
350 * !!!
351 * Vi historically stored temporary files in /var/tmp. We store them
352 * in /tmp by default, hoping it's a memory based file system. There
353 * are two ways to change this -- the user can set either the directory
354 * option or the TMPDIR environmental variable.
355 */
356 (void)SPRINTF(b2, SIZE(b2),
357 L("directory=%s"), (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s);
358 OI(O_TMPDIR, b2);
359 OI(O_ESCAPETIME, L("escapetime=6"));
360 OI(O_FILEC, L("filec=\t"));
361 OI(O_KEYTIME, L("keytime=6"));
362 OI(O_MATCHCHARS, L("matchchars=()[]{}"));
363 OI(O_MATCHTIME, L("matchtime=7"));
364 (void)SPRINTF(b2, SIZE(b2), L("msgcat=%s"), _PATH_MSGCAT);
365 OI(O_MSGCAT, b2);
366 OI(O_REPORT, L("report=5"));
367 OI(O_PARAGRAPHS, L("paragraphs=IPLPPPQPP LIpplpipbp"));
368 (void)SPRINTF(b2, SIZE(b2), L("path=%s"), "");
369 OI(O_PATH, b2);
370 (void)SPRINTF(b2, SIZE(b2), L("recdir=%s"), NVI_PATH_PRESERVE);
371 OI(O_RECDIR, b2);
372 OI(O_SECTIONS, L("sections=NHSHH HUnhsh"));
373 (void)SPRINTF(b2, SIZE(b2),
374 L("shell=%s"), (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s);
375 OI(O_SHELL, b2);
376 OI(O_SHELLMETA, L("shellmeta=~{[*?$`'\"\\"));
377 OI(O_SHIFTWIDTH, L("shiftwidth=8"));
378 OI(O_SIDESCROLL, L("sidescroll=16"));
379 OI(O_TABSTOP, L("tabstop=8"));
380 (void)SPRINTF(b2, SIZE(b2), L("tags=%s"), _PATH_TAGS);
381 OI(O_TAGS, b2);
382
383 /*
384 * XXX
385 * Initialize O_SCROLL here, after term; initializing term should
386 * have created a LINES/COLUMNS value.
387 */
388 if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0)
389 v = 1;
390 (void)SPRINTF(b2, SIZE(b2), L("scroll=%ld"), v);
391 OI(O_SCROLL, b2);
392
393 /*
394 * The default window option values are:
395 * 8 if baud rate <= 600
396 * 16 if baud rate <= 1200
397 * LINES - 1 if baud rate > 1200
398 *
399 * Note, the windows option code will correct any too-large value
400 * or when the O_LINES value is 1.
401 */
402 if (sp->gp->scr_baud(sp, &v))
403 return (1);
404 if (v <= 600)
405 v = 8;
406 else if (v <= 1200)
407 v = 16;
408 else if ((v = O_VAL(sp, O_LINES) - 1) == 0)
409 v = 1;
410
411 (void)SPRINTF(b2, SIZE(b2), L("window=%lu"), v);
412 OI(O_WINDOW, b2);
413
414 /*
415 * Set boolean default values, and copy all settings into the default
416 * information. OS_NOFREE is set, we're copying, not replacing.
417 */
418 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) {
419 if (F_ISSET(op, OPT_GLOBAL))
420 continue;
421 switch (op->type) {
422 case OPT_0BOOL:
423 break;
424 case OPT_1BOOL:
425 O_SET(sp, cnt);
426 O_D_SET(sp, cnt);
427 break;
428 case OPT_NUM:
429 o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt));
430 break;
431 case OPT_STR:
432 if (O_STR(sp, cnt) != NULL && o_set(sp, cnt,
433 OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0))
434 goto err;
435 break;
436 default:
437 abort();
438 }
439 }
440
441 /*
442 * !!!
443 * Some options can be initialized by the command name or the
444 * command-line arguments. They don't set the default values,
445 * it's historic practice.
446 */
447 for (; *oargs != -1; ++oargs)
448 OI(*oargs, optlist[*oargs].name);
449 #undef OI
450 return (0);
451
452 err: msgq_wstr(sp, M_ERR, optlist[optindx].name,
453 "031|Unable to set default %s option");
454 return (1);
455 }
456
457 /*
458 * opts_set --
459 * Change the values of one or more options.
460 *
461 * PUBLIC: int opts_set(SCR *, ARGS *[], char *);
462 */
463 int
opts_set(SCR * sp,ARGS * argv[],char * usage)464 opts_set(SCR *sp, ARGS *argv[], char *usage)
465 {
466 enum optdisp disp;
467 enum nresult nret;
468 OPTLIST const *op;
469 OPTION *spo;
470 u_long isset, turnoff, value;
471 int ch, equals, nf, nf2, offset, qmark, rval;
472 CHAR_T *endp, *name, *p, *sep;
473 char *p2, *t2;
474 char *np;
475 size_t nlen;
476
477 disp = NO_DISPLAY;
478 for (rval = 0; argv[0]->len != 0; ++argv) {
479 /*
480 * The historic vi dumped the options for each occurrence of
481 * "all" in the set list. Puhleeze.
482 */
483 if (!STRCMP(argv[0]->bp, L("all"))) {
484 disp = ALL_DISPLAY;
485 continue;
486 }
487
488 /* Find equals sign or question mark. */
489 for (sep = NULL, equals = qmark = 0,
490 p = name = argv[0]->bp; (ch = *p) != '\0'; ++p)
491 if (ch == '=' || ch == '?') {
492 if (p == name) {
493 if (usage != NULL)
494 msgq(sp, M_ERR,
495 "032|Usage: %s", usage);
496 return (1);
497 }
498 sep = p;
499 if (ch == '=')
500 equals = 1;
501 else
502 qmark = 1;
503 break;
504 }
505
506 turnoff = 0;
507 op = NULL;
508 if (sep != NULL)
509 *sep++ = '\0';
510
511 /* Search for the name, then name without any leading "no". */
512 if ((op = opts_search(name)) == NULL &&
513 name[0] == 'n' && name[1] == 'o') {
514 turnoff = 1;
515 name += 2;
516 op = opts_search(name);
517 }
518 if (op == NULL) {
519 opts_nomatch(sp, name);
520 rval = 1;
521 continue;
522 }
523
524 /* Find current option values. */
525 offset = op - optlist;
526 spo = sp->opts + offset;
527
528 /*
529 * !!!
530 * Historically, the question mark could be a separate
531 * argument.
532 */
533 if (!equals && !qmark &&
534 argv[1]->len == 1 && argv[1]->bp[0] == '?') {
535 ++argv;
536 qmark = 1;
537 }
538
539 /* Set name, value. */
540 switch (op->type) {
541 case OPT_0BOOL:
542 case OPT_1BOOL:
543 /* Some options may not be reset. */
544 if (F_ISSET(op, OPT_NOUNSET) && turnoff) {
545 msgq_wstr(sp, M_ERR, name,
546 "291|set: the %s option may not be turned off");
547 rval = 1;
548 break;
549 }
550
551 /* Some options may not be set. */
552 if (F_ISSET(op, OPT_NOSET) && !turnoff) {
553 msgq_wstr(sp, M_ERR, name,
554 "313|set: the %s option may never be turned on");
555 rval = 1;
556 break;
557 }
558
559 if (equals) {
560 msgq_wstr(sp, M_ERR, name,
561 "034|set: [no]%s option doesn't take a value");
562 rval = 1;
563 break;
564 }
565 if (qmark) {
566 if (!disp)
567 disp = SELECT_DISPLAY;
568 F_SET(spo, OPT_SELECTED);
569 break;
570 }
571
572 /*
573 * Do nothing if the value is unchanged, the underlying
574 * functions can be expensive.
575 */
576 isset = !turnoff;
577 if (!F_ISSET(op, OPT_ALWAYS))
578 if (isset) {
579 if (O_ISSET(sp, offset))
580 break;
581 } else
582 if (!O_ISSET(sp, offset))
583 break;
584
585 /* Report to subsystems. */
586 if ((op->func != NULL &&
587 op->func(sp, spo, NULL, &isset)) ||
588 ex_optchange(sp, offset, NULL, &isset) ||
589 v_optchange(sp, offset, NULL, &isset) ||
590 sp->gp->scr_optchange(sp, offset, NULL, &isset)) {
591 rval = 1;
592 break;
593 }
594
595 /* Set the value. */
596 if (isset)
597 O_SET(sp, offset);
598 else
599 O_CLR(sp, offset);
600 break;
601 case OPT_NUM:
602 if (turnoff) {
603 msgq_wstr(sp, M_ERR, name,
604 "035|set: %s option isn't a boolean");
605 rval = 1;
606 break;
607 }
608 if (qmark || !equals) {
609 if (!disp)
610 disp = SELECT_DISPLAY;
611 F_SET(spo, OPT_SELECTED);
612 break;
613 }
614
615 if (!ISDIGIT(sep[0]))
616 goto badnum;
617 if ((nret =
618 nget_uslong(&value, sep, &endp, 10)) != NUM_OK) {
619 INT2CHAR(sp, name, STRLEN(name) + 1,
620 np, nlen);
621 p2 = msg_print(sp, np, &nf);
622 INT2CHAR(sp, sep, STRLEN(sep) + 1,
623 np, nlen);
624 t2 = msg_print(sp, np, &nf2);
625 switch (nret) {
626 case NUM_ERR:
627 msgq(sp, M_SYSERR,
628 "036|set: %s option: %s", p2, t2);
629 break;
630 case NUM_OVER:
631 msgq(sp, M_ERR,
632 "037|set: %s option: %s: value overflow", p2, t2);
633 break;
634 case NUM_OK:
635 case NUM_UNDER:
636 abort();
637 }
638 if (nf)
639 FREE_SPACE(sp, p2, 0);
640 if (nf2)
641 FREE_SPACE(sp, t2, 0);
642 rval = 1;
643 break;
644 }
645 if (*endp && !cmdskip(*endp)) {
646 badnum: INT2CHAR(sp, name, STRLEN(name) + 1,
647 np, nlen);
648 p2 = msg_print(sp, np, &nf);
649 INT2CHAR(sp, sep, STRLEN(sep) + 1,
650 np, nlen);
651 t2 = msg_print(sp, np, &nf2);
652 msgq(sp, M_ERR,
653 "038|set: %s option: %s is an illegal number", p2, t2);
654 if (nf)
655 FREE_SPACE(sp, p2, 0);
656 if (nf2)
657 FREE_SPACE(sp, t2, 0);
658 rval = 1;
659 break;
660 }
661
662 /* Some options may never be set to zero. */
663 if (F_ISSET(op, OPT_NOZERO) && value == 0) {
664 msgq_wstr(sp, M_ERR, name,
665 "314|set: the %s option may never be set to 0");
666 rval = 1;
667 break;
668 }
669
670 /*
671 * Do nothing if the value is unchanged, the underlying
672 * functions can be expensive.
673 */
674 if (!F_ISSET(op, OPT_ALWAYS) &&
675 O_VAL(sp, offset) == value)
676 break;
677
678 /* Report to subsystems. */
679 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
680 if ((op->func != NULL &&
681 op->func(sp, spo, np, &value)) ||
682 ex_optchange(sp, offset, np, &value) ||
683 v_optchange(sp, offset, np, &value) ||
684 sp->gp->scr_optchange(sp, offset, np, &value)) {
685 rval = 1;
686 break;
687 }
688
689 /* Set the value. */
690 if (o_set(sp, offset, 0, NULL, value))
691 rval = 1;
692 break;
693 case OPT_STR:
694 if (turnoff) {
695 msgq_wstr(sp, M_ERR, name,
696 "039|set: %s option isn't a boolean");
697 rval = 1;
698 break;
699 }
700 if (qmark || !equals) {
701 if (!disp)
702 disp = SELECT_DISPLAY;
703 F_SET(spo, OPT_SELECTED);
704 break;
705 }
706
707 /* Check for strings that must have even length. */
708 if (F_ISSET(op, OPT_PAIRS) && STRLEN(sep) & 1) {
709 msgq_wstr(sp, M_ERR, name,
710 "047|The %s option must be in two character groups");
711 rval = 1;
712 break;
713 }
714
715 /*
716 * Do nothing if the value is unchanged, the underlying
717 * functions can be expensive.
718 */
719 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
720 if (!F_ISSET(op, OPT_ALWAYS) &&
721 O_STR(sp, offset) != NULL &&
722 !strcmp(O_STR(sp, offset), np))
723 break;
724
725 /* Report to subsystems. */
726 if ((op->func != NULL &&
727 op->func(sp, spo, np, NULL)) ||
728 ex_optchange(sp, offset, np, NULL) ||
729 v_optchange(sp, offset, np, NULL) ||
730 sp->gp->scr_optchange(sp, offset, np, NULL)) {
731 rval = 1;
732 break;
733 }
734
735 /* Set the value. */
736 if (o_set(sp, offset, OS_STRDUP, np, 0))
737 rval = 1;
738 break;
739 default:
740 abort();
741 }
742 }
743 if (disp != NO_DISPLAY)
744 opts_dump(sp, disp);
745 return (rval);
746 }
747
748 /*
749 * o_set --
750 * Set an option's value.
751 *
752 * PUBLIC: int o_set(SCR *, int, u_int, char *, u_long);
753 */
754 int
o_set(SCR * sp,int opt,u_int flags,char * str,u_long val)755 o_set(SCR *sp, int opt, u_int flags, char *str, u_long val)
756 {
757 OPTION *op;
758
759 /* Set a pointer to the options area. */
760 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ?
761 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt];
762
763 /* Copy the string, if requested. */
764 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) {
765 msgq(sp, M_SYSERR, NULL);
766 return (1);
767 }
768
769 /* Free the previous string, if requested, and set the value. */
770 if LF_ISSET(OS_DEF)
771 if (LF_ISSET(OS_STR | OS_STRDUP)) {
772 if (!LF_ISSET(OS_NOFREE))
773 free(op->o_def.str);
774 op->o_def.str = str;
775 } else
776 op->o_def.val = val;
777 else
778 if (LF_ISSET(OS_STR | OS_STRDUP)) {
779 if (!LF_ISSET(OS_NOFREE))
780 free(op->o_cur.str);
781 op->o_cur.str = str;
782 } else
783 op->o_cur.val = val;
784 return (0);
785 }
786
787 /*
788 * opts_empty --
789 * Return 1 if the string option is invalid, 0 if it's OK.
790 *
791 * PUBLIC: int opts_empty(SCR *, int, int);
792 */
793 int
opts_empty(SCR * sp,int off,int silent)794 opts_empty(SCR *sp, int off, int silent)
795 {
796 char *p;
797
798 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') {
799 if (!silent)
800 msgq_wstr(sp, M_ERR, optlist[off].name,
801 "305|No %s edit option specified");
802 return (1);
803 }
804 return (0);
805 }
806
807 /*
808 * opts_dump --
809 * List the current values of selected options.
810 *
811 * PUBLIC: void opts_dump(SCR *, enum optdisp);
812 */
813 void
opts_dump(SCR * sp,enum optdisp type)814 opts_dump(SCR *sp, enum optdisp type)
815 {
816 OPTLIST const *op;
817 int base, b_num, cnt, col, colwidth, curlen, s_num;
818 int numcols, numrows, row;
819 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT];
820 char nbuf[20];
821
822 /*
823 * Options are output in two groups -- those that fit in a column and
824 * those that don't. Output is done on 6 character "tab" boundaries
825 * for no particular reason. (Since we don't output tab characters,
826 * we can ignore the terminal's tab settings.) Ignore the user's tab
827 * setting because we have no idea how reasonable it is.
828 *
829 * Find a column width we can live with, testing from 10 columns to 1.
830 */
831 for (numcols = 10; numcols > 1; --numcols) {
832 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1);
833 if (colwidth >= 10) {
834 colwidth =
835 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1);
836 numcols = sp->cols / colwidth;
837 break;
838 }
839 colwidth = 0;
840 }
841
842 /*
843 * Get the set of options to list, entering them into
844 * the column list or the overflow list.
845 */
846 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) {
847 cnt = op - optlist;
848
849 /* If OPT_NDISP set, it's never displayed. */
850 if (F_ISSET(op, OPT_NDISP))
851 continue;
852
853 switch (type) {
854 case ALL_DISPLAY: /* Display all. */
855 break;
856 case CHANGED_DISPLAY: /* Display changed. */
857 /* If OPT_ADISP set, it's always "changed". */
858 if (F_ISSET(op, OPT_ADISP))
859 break;
860 switch (op->type) {
861 case OPT_0BOOL:
862 case OPT_1BOOL:
863 case OPT_NUM:
864 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt))
865 continue;
866 break;
867 case OPT_STR:
868 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) ||
869 (O_D_STR(sp, cnt) != NULL &&
870 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))))
871 continue;
872 break;
873 }
874 break;
875 case SELECT_DISPLAY: /* Display selected. */
876 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED))
877 continue;
878 break;
879 default:
880 case NO_DISPLAY:
881 abort();
882 }
883 F_CLR(&sp->opts[cnt], OPT_SELECTED);
884
885 curlen = STRLEN(op->name);
886 switch (op->type) {
887 case OPT_0BOOL:
888 case OPT_1BOOL:
889 if (!O_ISSET(sp, cnt))
890 curlen += 2;
891 break;
892 case OPT_NUM:
893 (void)snprintf(nbuf,
894 sizeof(nbuf), "%ld", O_VAL(sp, cnt));
895 curlen += strlen(nbuf);
896 break;
897 case OPT_STR:
898 if (O_STR(sp, cnt) != NULL)
899 curlen += strlen(O_STR(sp, cnt));
900 curlen += 3;
901 break;
902 }
903 /* Offset by 2 so there's a gap. */
904 if (curlen <= colwidth - 2)
905 s_op[s_num++] = cnt;
906 else
907 b_op[b_num++] = cnt;
908 }
909
910 if (s_num > 0) {
911 /* Figure out the number of rows. */
912 if (s_num > numcols) {
913 numrows = s_num / numcols;
914 if (s_num % numcols)
915 ++numrows;
916 } else
917 numrows = 1;
918
919 /* Display the options in sorted order. */
920 for (row = 0; row < numrows;) {
921 for (base = row, col = 0; col < numcols; ++col) {
922 cnt = opts_print(sp, &optlist[s_op[base]]);
923 if ((base += numrows) >= s_num)
924 break;
925 (void)ex_printf(sp, "%*s",
926 (int)(colwidth - cnt), "");
927 }
928 if (++row < numrows || b_num)
929 (void)ex_puts(sp, "\n");
930 }
931 }
932
933 for (row = 0; row < b_num;) {
934 (void)opts_print(sp, &optlist[b_op[row]]);
935 if (++row < b_num)
936 (void)ex_puts(sp, "\n");
937 }
938 (void)ex_puts(sp, "\n");
939 }
940
941 /*
942 * opts_print --
943 * Print out an option.
944 */
945 static int
opts_print(SCR * sp,OPTLIST const * op)946 opts_print(SCR *sp, OPTLIST const *op)
947 {
948 int curlen, offset;
949 const char *p;
950
951 curlen = 0;
952 offset = op - optlist;
953 switch (op->type) {
954 case OPT_0BOOL:
955 case OPT_1BOOL:
956 curlen += ex_printf(sp,
957 "%s"WS, O_ISSET(sp, offset) ? "" : "no", op->name);
958 break;
959 case OPT_NUM:
960 curlen += ex_printf(sp, WS"=%ld", op->name, O_VAL(sp, offset));
961 break;
962 case OPT_STR:
963 curlen += ex_printf(sp, WS"=\"", op->name);
964 p = O_STR(sp, offset);
965 /* Keep correct count for unprintable character sequences */
966 if (p != NULL)
967 for (; *p != '\0'; ++p)
968 curlen += ex_puts(sp, unctrl(*p));
969 curlen += ex_puts(sp, "\"");
970 break;
971 }
972 return (curlen);
973 }
974
975 /*
976 * opts_save --
977 * Write the current configuration to a file.
978 *
979 * PUBLIC: int opts_save(SCR *, FILE *);
980 */
981 int
opts_save(SCR * sp,FILE * fp)982 opts_save(SCR *sp, FILE *fp)
983 {
984 OPTLIST const *op;
985 CHAR_T ch, *p;
986 char nch, *np;
987 int cnt;
988
989 for (op = optlist; op->name != NULL; ++op) {
990 if (F_ISSET(op, OPT_NOSAVE))
991 continue;
992 cnt = op - optlist;
993 switch (op->type) {
994 case OPT_0BOOL:
995 case OPT_1BOOL:
996 if (O_ISSET(sp, cnt))
997 (void)fprintf(fp, "set "WS"\n", op->name);
998 else
999 (void)fprintf(fp, "set no"WS"\n", op->name);
1000 break;
1001 case OPT_NUM:
1002 (void)fprintf(fp,
1003 "set "WS"=%-3ld\n", op->name, O_VAL(sp, cnt));
1004 break;
1005 case OPT_STR:
1006 if (O_STR(sp, cnt) == NULL)
1007 break;
1008 (void)fprintf(fp, "set ");
1009 for (p = op->name; (ch = *p) != '\0'; ++p) {
1010 if (cmdskip(ch) || ch == '\\')
1011 (void)putc('\\', fp);
1012 fprintf(fp, WC, ch);
1013 }
1014 (void)putc('=', fp);
1015 for (np = O_STR(sp, cnt); (nch = *np) != '\0'; ++np) {
1016 if (cmdskip(nch) || nch == '\\')
1017 (void)putc('\\', fp);
1018 (void)putc(nch, fp);
1019 }
1020 (void)putc('\n', fp);
1021 break;
1022 }
1023 if (ferror(fp)) {
1024 msgq(sp, M_SYSERR, NULL);
1025 return (1);
1026 }
1027 }
1028 return (0);
1029 }
1030
1031 /*
1032 * opts_search --
1033 * Search for an option.
1034 *
1035 * PUBLIC: OPTLIST const *opts_search(CHAR_T *);
1036 */
1037 OPTLIST const *
opts_search(CHAR_T * name)1038 opts_search(CHAR_T *name)
1039 {
1040 OPTLIST const *op, *found;
1041 OABBREV atmp, *ap;
1042 OPTLIST otmp;
1043 size_t len;
1044
1045 /* Check list of abbreviations. */
1046 atmp.name = name;
1047 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1,
1048 sizeof(OABBREV), opts_abbcmp)) != NULL)
1049 return (optlist + ap->offset);
1050
1051 /* Check list of options. */
1052 otmp.name = name;
1053 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1,
1054 sizeof(OPTLIST), opts_cmp)) != NULL)
1055 return (op);
1056
1057 /*
1058 * Check to see if the name is the prefix of one (and only one)
1059 * option. If so, return the option.
1060 */
1061 len = STRLEN(name);
1062 for (found = NULL, op = optlist; op->name != NULL; ++op) {
1063 if (op->name[0] < name[0])
1064 continue;
1065 if (op->name[0] > name[0])
1066 break;
1067 if (!MEMCMP(op->name, name, len)) {
1068 if (found != NULL)
1069 return (NULL);
1070 found = op;
1071 }
1072 }
1073 return (found);
1074 }
1075
1076 /*
1077 * opts_nomatch --
1078 * Standard nomatch error message for options.
1079 *
1080 * PUBLIC: void opts_nomatch(SCR *, CHAR_T *);
1081 */
1082 void
opts_nomatch(SCR * sp,CHAR_T * name)1083 opts_nomatch(SCR *sp, CHAR_T *name)
1084 {
1085 msgq_wstr(sp, M_ERR, name,
1086 "033|set: no %s option: 'set all' gives all option values");
1087 }
1088
1089 static int
opts_abbcmp(const void * a,const void * b)1090 opts_abbcmp(const void *a, const void *b)
1091 {
1092 return(STRCMP(((OABBREV *)a)->name, ((OABBREV *)b)->name));
1093 }
1094
1095 static int
opts_cmp(const void * a,const void * b)1096 opts_cmp(const void *a, const void *b)
1097 {
1098 return(STRCMP(((OPTLIST *)a)->name, ((OPTLIST *)b)->name));
1099 }
1100
1101 /*
1102 * opts_copy --
1103 * Copy a screen's OPTION array.
1104 *
1105 * PUBLIC: int opts_copy(SCR *, SCR *);
1106 */
1107 int
opts_copy(SCR * orig,SCR * sp)1108 opts_copy(SCR *orig, SCR *sp)
1109 {
1110 int cnt, rval;
1111
1112 /* Copy most everything without change. */
1113 memcpy(sp->opts, orig->opts, sizeof(orig->opts));
1114
1115 /* Copy the string edit options. */
1116 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1117 if (optlist[cnt].type != OPT_STR ||
1118 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1119 continue;
1120 /*
1121 * If never set, or already failed, NULL out the entries --
1122 * have to continue after failure, otherwise would have two
1123 * screens referencing the same memory.
1124 */
1125 if (rval || O_STR(sp, cnt) == NULL) {
1126 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0);
1127 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1128 continue;
1129 }
1130
1131 /* Copy the current string. */
1132 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) {
1133 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1134 goto nomem;
1135 }
1136
1137 /* Copy the default string. */
1138 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt,
1139 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) {
1140 nomem: msgq(orig, M_SYSERR, NULL);
1141 rval = 1;
1142 }
1143 }
1144 return (rval);
1145 }
1146
1147 /*
1148 * opts_free --
1149 * Free all option strings
1150 *
1151 * PUBLIC: void opts_free(SCR *);
1152 */
1153 void
opts_free(SCR * sp)1154 opts_free(SCR *sp)
1155 {
1156 int cnt;
1157
1158 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1159 if (optlist[cnt].type != OPT_STR ||
1160 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1161 continue;
1162 free(O_STR(sp, cnt));
1163 free(O_D_STR(sp, cnt));
1164 }
1165 }
1166