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) do { \
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 } while (0)
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
586 /* Report to subsystems. */
587 if ((op->func != NULL &&
588 op->func(sp, spo, NULL, &isset)) ||
589 ex_optchange(sp, offset, NULL, &isset) ||
590 v_optchange(sp, offset, NULL, &isset) ||
591 sp->gp->scr_optchange(sp, offset, NULL, &isset)) {
592 rval = 1;
593 break;
594 }
595
596 /* Set the value. */
597 if (isset)
598 O_SET(sp, offset);
599 else
600 O_CLR(sp, offset);
601 break;
602 case OPT_NUM:
603 if (turnoff) {
604 msgq_wstr(sp, M_ERR, name,
605 "035|set: %s option isn't a boolean");
606 rval = 1;
607 break;
608 }
609 if (qmark || !equals) {
610 if (!disp)
611 disp = SELECT_DISPLAY;
612 F_SET(spo, OPT_SELECTED);
613 break;
614 }
615
616 if (!ISDIGIT(sep[0]))
617 goto badnum;
618 if ((nret =
619 nget_uslong(&value, sep, &endp, 10)) != NUM_OK) {
620 INT2CHAR(sp, name, STRLEN(name) + 1,
621 np, nlen);
622 p2 = msg_print(sp, np, &nf);
623 INT2CHAR(sp, sep, STRLEN(sep) + 1,
624 np, nlen);
625 t2 = msg_print(sp, np, &nf2);
626 switch (nret) {
627 case NUM_ERR:
628 msgq(sp, M_SYSERR,
629 "036|set: %s option: %s", p2, t2);
630 break;
631 case NUM_OVER:
632 msgq(sp, M_ERR,
633 "037|set: %s option: %s: value overflow", p2, t2);
634 break;
635 case NUM_OK:
636 case NUM_UNDER:
637 abort();
638 }
639 if (nf)
640 FREE_SPACE(sp, p2, 0);
641 if (nf2)
642 FREE_SPACE(sp, t2, 0);
643 rval = 1;
644 break;
645 }
646 if (*endp && !cmdskip(*endp)) {
647 badnum: INT2CHAR(sp, name, STRLEN(name) + 1,
648 np, nlen);
649 p2 = msg_print(sp, np, &nf);
650 INT2CHAR(sp, sep, STRLEN(sep) + 1,
651 np, nlen);
652 t2 = msg_print(sp, np, &nf2);
653 msgq(sp, M_ERR,
654 "038|set: %s option: %s is an illegal number", p2, t2);
655 if (nf)
656 FREE_SPACE(sp, p2, 0);
657 if (nf2)
658 FREE_SPACE(sp, t2, 0);
659 rval = 1;
660 break;
661 }
662
663 /* Some options may never be set to zero. */
664 if (F_ISSET(op, OPT_NOZERO) && value == 0) {
665 msgq_wstr(sp, M_ERR, name,
666 "314|set: the %s option may never be set to 0");
667 rval = 1;
668 break;
669 }
670
671 /*
672 * Do nothing if the value is unchanged, the underlying
673 * functions can be expensive.
674 */
675 if (!F_ISSET(op, OPT_ALWAYS) &&
676 O_VAL(sp, offset) == value)
677 break;
678
679 /* Report to subsystems. */
680 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
681 if ((op->func != NULL &&
682 op->func(sp, spo, np, &value)) ||
683 ex_optchange(sp, offset, np, &value) ||
684 v_optchange(sp, offset, np, &value) ||
685 sp->gp->scr_optchange(sp, offset, np, &value)) {
686 rval = 1;
687 break;
688 }
689
690 /* Set the value. */
691 if (o_set(sp, offset, 0, NULL, value))
692 rval = 1;
693 break;
694 case OPT_STR:
695 if (turnoff) {
696 msgq_wstr(sp, M_ERR, name,
697 "039|set: %s option isn't a boolean");
698 rval = 1;
699 break;
700 }
701 if (qmark || !equals) {
702 if (!disp)
703 disp = SELECT_DISPLAY;
704 F_SET(spo, OPT_SELECTED);
705 break;
706 }
707
708 /* Check for strings that must have even length. */
709 if (F_ISSET(op, OPT_PAIRS) && STRLEN(sep) & 1) {
710 msgq_wstr(sp, M_ERR, name,
711 "047|The %s option must be in two character groups");
712 rval = 1;
713 break;
714 }
715
716 /*
717 * Do nothing if the value is unchanged, the underlying
718 * functions can be expensive.
719 */
720 INT2CHAR(sp, sep, STRLEN(sep) + 1, np, nlen);
721 if (!F_ISSET(op, OPT_ALWAYS) &&
722 O_STR(sp, offset) != NULL &&
723 !strcmp(O_STR(sp, offset), np))
724 break;
725
726 /* Report to subsystems. */
727 if ((op->func != NULL &&
728 op->func(sp, spo, np, NULL)) ||
729 ex_optchange(sp, offset, np, NULL) ||
730 v_optchange(sp, offset, np, NULL) ||
731 sp->gp->scr_optchange(sp, offset, np, NULL)) {
732 rval = 1;
733 break;
734 }
735
736 /* Set the value. */
737 if (o_set(sp, offset, OS_STRDUP, np, 0))
738 rval = 1;
739 break;
740 default:
741 abort();
742 }
743 }
744 if (disp != NO_DISPLAY)
745 opts_dump(sp, disp);
746 return (rval);
747 }
748
749 /*
750 * o_set --
751 * Set an option's value.
752 *
753 * PUBLIC: int o_set(SCR *, int, u_int, char *, u_long);
754 */
755 int
o_set(SCR * sp,int opt,u_int flags,char * str,u_long val)756 o_set(SCR *sp, int opt, u_int flags, char *str, u_long val)
757 {
758 OPTION *op;
759
760 /* Set a pointer to the options area. */
761 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ?
762 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt];
763
764 /* Copy the string, if requested. */
765 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) {
766 msgq(sp, M_SYSERR, NULL);
767 return (1);
768 }
769
770 /* Free the previous string, if requested, and set the value. */
771 if LF_ISSET(OS_DEF)
772 if (LF_ISSET(OS_STR | OS_STRDUP)) {
773 if (!LF_ISSET(OS_NOFREE))
774 free(op->o_def.str);
775 op->o_def.str = str;
776 } else
777 op->o_def.val = val;
778 else
779 if (LF_ISSET(OS_STR | OS_STRDUP)) {
780 if (!LF_ISSET(OS_NOFREE))
781 free(op->o_cur.str);
782 op->o_cur.str = str;
783 } else
784 op->o_cur.val = val;
785 return (0);
786 }
787
788 /*
789 * opts_empty --
790 * Return 1 if the string option is invalid, 0 if it's OK.
791 *
792 * PUBLIC: int opts_empty(SCR *, int, int);
793 */
794 int
opts_empty(SCR * sp,int off,int silent)795 opts_empty(SCR *sp, int off, int silent)
796 {
797 char *p;
798
799 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') {
800 if (!silent)
801 msgq_wstr(sp, M_ERR, optlist[off].name,
802 "305|No %s edit option specified");
803 return (1);
804 }
805 return (0);
806 }
807
808 /*
809 * opts_dump --
810 * List the current values of selected options.
811 *
812 * PUBLIC: void opts_dump(SCR *, enum optdisp);
813 */
814 void
opts_dump(SCR * sp,enum optdisp type)815 opts_dump(SCR *sp, enum optdisp type)
816 {
817 OPTLIST const *op;
818 int base, b_num, cnt, col, colwidth, curlen, s_num;
819 int numcols, numrows, row;
820 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT];
821 char nbuf[20];
822
823 /*
824 * Options are output in two groups -- those that fit in a column and
825 * those that don't. Output is done on 6 character "tab" boundaries
826 * for no particular reason. (Since we don't output tab characters,
827 * we can ignore the terminal's tab settings.) Ignore the user's tab
828 * setting because we have no idea how reasonable it is.
829 *
830 * Find a column width we can live with, testing from 10 columns to 1.
831 */
832 for (numcols = 10; numcols > 1; --numcols) {
833 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1);
834 if (colwidth >= 10) {
835 colwidth =
836 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1);
837 numcols = sp->cols / colwidth;
838 break;
839 }
840 colwidth = 0;
841 }
842
843 /*
844 * Get the set of options to list, entering them into
845 * the column list or the overflow list.
846 */
847 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) {
848 cnt = op - optlist;
849
850 /* If OPT_NDISP set, it's never displayed. */
851 if (F_ISSET(op, OPT_NDISP))
852 continue;
853
854 switch (type) {
855 case ALL_DISPLAY: /* Display all. */
856 break;
857 case CHANGED_DISPLAY: /* Display changed. */
858 /* If OPT_ADISP set, it's always "changed". */
859 if (F_ISSET(op, OPT_ADISP))
860 break;
861 switch (op->type) {
862 case OPT_0BOOL:
863 case OPT_1BOOL:
864 case OPT_NUM:
865 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt))
866 continue;
867 break;
868 case OPT_STR:
869 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) ||
870 (O_D_STR(sp, cnt) != NULL &&
871 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))))
872 continue;
873 break;
874 }
875 break;
876 case SELECT_DISPLAY: /* Display selected. */
877 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED))
878 continue;
879 break;
880 default:
881 case NO_DISPLAY:
882 abort();
883 }
884 F_CLR(&sp->opts[cnt], OPT_SELECTED);
885
886 curlen = STRLEN(op->name);
887 switch (op->type) {
888 case OPT_0BOOL:
889 case OPT_1BOOL:
890 if (!O_ISSET(sp, cnt))
891 curlen += 2;
892 break;
893 case OPT_NUM:
894 (void)snprintf(nbuf,
895 sizeof(nbuf), "%ld", O_VAL(sp, cnt));
896 curlen += strlen(nbuf);
897 break;
898 case OPT_STR:
899 if (O_STR(sp, cnt) != NULL)
900 curlen += strlen(O_STR(sp, cnt));
901 curlen += 3;
902 break;
903 }
904 /* Offset by 2 so there's a gap. */
905 if (curlen <= colwidth - 2)
906 s_op[s_num++] = cnt;
907 else
908 b_op[b_num++] = cnt;
909 }
910
911 if (s_num > 0) {
912 /* Figure out the number of rows. */
913 if (s_num > numcols) {
914 numrows = s_num / numcols;
915 if (s_num % numcols)
916 ++numrows;
917 } else
918 numrows = 1;
919
920 /* Display the options in sorted order. */
921 for (row = 0; row < numrows;) {
922 for (base = row, col = 0; col < numcols; ++col) {
923 cnt = opts_print(sp, &optlist[s_op[base]]);
924 if ((base += numrows) >= s_num)
925 break;
926 (void)ex_printf(sp, "%*s",
927 (int)(colwidth - cnt), "");
928 }
929 if (++row < numrows || b_num)
930 (void)ex_puts(sp, "\n");
931 }
932 }
933
934 for (row = 0; row < b_num;) {
935 (void)opts_print(sp, &optlist[b_op[row]]);
936 if (++row < b_num)
937 (void)ex_puts(sp, "\n");
938 }
939 (void)ex_puts(sp, "\n");
940 }
941
942 /*
943 * opts_print --
944 * Print out an option.
945 */
946 static int
opts_print(SCR * sp,OPTLIST const * op)947 opts_print(SCR *sp, OPTLIST const *op)
948 {
949 int curlen, offset;
950 const char *p;
951
952 curlen = 0;
953 offset = op - optlist;
954 switch (op->type) {
955 case OPT_0BOOL:
956 case OPT_1BOOL:
957 curlen += ex_printf(sp,
958 "%s"WS, O_ISSET(sp, offset) ? "" : "no", op->name);
959 break;
960 case OPT_NUM:
961 curlen += ex_printf(sp, WS"=%ld", op->name, O_VAL(sp, offset));
962 break;
963 case OPT_STR:
964 curlen += ex_printf(sp, WS"=\"", op->name);
965 p = O_STR(sp, offset);
966 /* Keep correct count for unprintable character sequences */
967 if (p != NULL)
968 for (; *p != '\0'; ++p)
969 curlen += ex_puts(sp, unctrl(*p));
970 curlen += ex_puts(sp, "\"");
971 break;
972 }
973 return (curlen);
974 }
975
976 /*
977 * opts_save --
978 * Write the current configuration to a file.
979 *
980 * PUBLIC: int opts_save(SCR *, FILE *);
981 */
982 int
opts_save(SCR * sp,FILE * fp)983 opts_save(SCR *sp, FILE *fp)
984 {
985 OPTLIST const *op;
986 CHAR_T ch, *p;
987 char nch, *np;
988 int cnt;
989
990 for (op = optlist; op->name != NULL; ++op) {
991 if (F_ISSET(op, OPT_NOSAVE))
992 continue;
993 cnt = op - optlist;
994 switch (op->type) {
995 case OPT_0BOOL:
996 case OPT_1BOOL:
997 if (O_ISSET(sp, cnt))
998 (void)fprintf(fp, "set "WS"\n", op->name);
999 else
1000 (void)fprintf(fp, "set no"WS"\n", op->name);
1001 break;
1002 case OPT_NUM:
1003 (void)fprintf(fp,
1004 "set "WS"=%-3ld\n", op->name, O_VAL(sp, cnt));
1005 break;
1006 case OPT_STR:
1007 if (O_STR(sp, cnt) == NULL)
1008 break;
1009 (void)fprintf(fp, "set ");
1010 for (p = op->name; (ch = *p) != '\0'; ++p) {
1011 if (cmdskip(ch) || ch == '\\')
1012 (void)putc('\\', fp);
1013 fprintf(fp, WC, ch);
1014 }
1015 (void)putc('=', fp);
1016 for (np = O_STR(sp, cnt); (nch = *np) != '\0'; ++np) {
1017 if (cmdskip(nch) || nch == '\\')
1018 (void)putc('\\', fp);
1019 (void)putc(nch, fp);
1020 }
1021 (void)putc('\n', fp);
1022 break;
1023 }
1024 if (ferror(fp)) {
1025 msgq(sp, M_SYSERR, NULL);
1026 return (1);
1027 }
1028 }
1029 return (0);
1030 }
1031
1032 /*
1033 * opts_search --
1034 * Search for an option.
1035 *
1036 * PUBLIC: OPTLIST const *opts_search(CHAR_T *);
1037 */
1038 OPTLIST const *
opts_search(CHAR_T * name)1039 opts_search(CHAR_T *name)
1040 {
1041 OPTLIST const *op, *found;
1042 OABBREV atmp, *ap;
1043 OPTLIST otmp;
1044 size_t len;
1045
1046 /* Check list of abbreviations. */
1047 atmp.name = name;
1048 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1,
1049 sizeof(OABBREV), opts_abbcmp)) != NULL)
1050 return (optlist + ap->offset);
1051
1052 /* Check list of options. */
1053 otmp.name = name;
1054 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1,
1055 sizeof(OPTLIST), opts_cmp)) != NULL)
1056 return (op);
1057
1058 /*
1059 * Check to see if the name is the prefix of one (and only one)
1060 * option. If so, return the option.
1061 */
1062 len = STRLEN(name);
1063 for (found = NULL, op = optlist; op->name != NULL; ++op) {
1064 if (op->name[0] < name[0])
1065 continue;
1066 if (op->name[0] > name[0])
1067 break;
1068 if (!MEMCMP(op->name, name, len)) {
1069 if (found != NULL)
1070 return (NULL);
1071 found = op;
1072 }
1073 }
1074 return (found);
1075 }
1076
1077 /*
1078 * opts_nomatch --
1079 * Standard nomatch error message for options.
1080 *
1081 * PUBLIC: void opts_nomatch(SCR *, CHAR_T *);
1082 */
1083 void
opts_nomatch(SCR * sp,CHAR_T * name)1084 opts_nomatch(SCR *sp, CHAR_T *name)
1085 {
1086 msgq_wstr(sp, M_ERR, name,
1087 "033|set: no %s option: 'set all' gives all option values");
1088 }
1089
1090 static int
opts_abbcmp(const void * a,const void * b)1091 opts_abbcmp(const void *a, const void *b)
1092 {
1093 return(STRCMP(((OABBREV *)a)->name, ((OABBREV *)b)->name));
1094 }
1095
1096 static int
opts_cmp(const void * a,const void * b)1097 opts_cmp(const void *a, const void *b)
1098 {
1099 return(STRCMP(((OPTLIST *)a)->name, ((OPTLIST *)b)->name));
1100 }
1101
1102 /*
1103 * opts_copy --
1104 * Copy a screen's OPTION array.
1105 *
1106 * PUBLIC: int opts_copy(SCR *, SCR *);
1107 */
1108 int
opts_copy(SCR * orig,SCR * sp)1109 opts_copy(SCR *orig, SCR *sp)
1110 {
1111 int cnt, rval;
1112
1113 /* Copy most everything without change. */
1114 memcpy(sp->opts, orig->opts, sizeof(orig->opts));
1115
1116 /* Copy the string edit options. */
1117 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1118 if (optlist[cnt].type != OPT_STR ||
1119 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1120 continue;
1121 /*
1122 * If never set, or already failed, NULL out the entries --
1123 * have to continue after failure, otherwise would have two
1124 * screens referencing the same memory.
1125 */
1126 if (rval || O_STR(sp, cnt) == NULL) {
1127 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0);
1128 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1129 continue;
1130 }
1131
1132 /* Copy the current string. */
1133 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) {
1134 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1135 goto nomem;
1136 }
1137
1138 /* Copy the default string. */
1139 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt,
1140 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) {
1141 nomem: msgq(orig, M_SYSERR, NULL);
1142 rval = 1;
1143 }
1144 }
1145 return (rval);
1146 }
1147
1148 /*
1149 * opts_free --
1150 * Free all option strings
1151 *
1152 * PUBLIC: void opts_free(SCR *);
1153 */
1154 void
opts_free(SCR * sp)1155 opts_free(SCR *sp)
1156 {
1157 int cnt;
1158
1159 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1160 if (optlist[cnt].type != OPT_STR ||
1161 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1162 continue;
1163 free(O_STR(sp, cnt));
1164 free(O_D_STR(sp, cnt));
1165 }
1166 }
1167