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_ALTNOTATION */
50 {L("altnotation"), f_print, OPT_0BOOL, 0},
51 /* O_ALTWERASE 4.4BSD */
52 {L("altwerase"), f_altwerase, OPT_0BOOL, 0},
53 /* O_AUTOINDENT 4BSD */
54 {L("autoindent"), NULL, OPT_0BOOL, 0},
55 /* O_AUTOPRINT 4BSD */
56 {L("autoprint"), NULL, OPT_1BOOL, 0},
57 /* O_AUTOWRITE 4BSD */
58 {L("autowrite"), NULL, OPT_0BOOL, 0},
59 /* O_BACKUP 4.4BSD */
60 {L("backup"), NULL, OPT_STR, 0},
61 /* O_BEAUTIFY 4BSD */
62 {L("beautify"), NULL, OPT_0BOOL, 0},
63 /* O_CDPATH 4.4BSD */
64 {L("cdpath"), NULL, OPT_STR, 0},
65 /* O_CEDIT 4.4BSD */
66 {L("cedit"), NULL, OPT_STR, 0},
67 /* O_COLUMNS 4.4BSD */
68 {L("columns"), f_columns, OPT_NUM, OPT_NOSAVE},
69 /* O_COMBINED */
70 {L("combined"), NULL, OPT_0BOOL, OPT_NOSET|OPT_WC},
71 /* O_COMMENT 4.4BSD */
72 {L("comment"), NULL, OPT_0BOOL, 0},
73 /* O_TMPDIR 4BSD */
74 {L("directory"), NULL, OPT_STR, 0},
75 /* O_EDCOMPATIBLE 4BSD */
76 {L("edcompatible"),NULL, OPT_0BOOL, 0},
77 /* O_ERRORBELLS 4BSD */
78 {L("errorbells"), NULL, OPT_0BOOL, 0},
79 /* O_ESCAPETIME 4.4BSD */
80 {L("escapetime"), NULL, OPT_NUM, 0},
81 /* O_EXPANDTAB NetBSD 5.0 */
82 {L("expandtab"), NULL, OPT_0BOOL, 0},
83 /* O_EXRC System V (undocumented) */
84 {L("exrc"), NULL, OPT_0BOOL, 0},
85 /* O_EXTENDED 4.4BSD */
86 {L("extended"), f_recompile, OPT_0BOOL, 0},
87 /* O_FILEC 4.4BSD */
88 {L("filec"), NULL, OPT_STR, 0},
89 /* O_FILEENCODING */
90 {L("fileencoding"),f_encoding, OPT_STR, OPT_WC},
91 /* O_FLASH HPUX */
92 {L("flash"), NULL, OPT_1BOOL, 0},
93 /* O_HARDTABS 4BSD */
94 {L("hardtabs"), NULL, OPT_NUM, 0},
95 /* O_ICLOWER 4.4BSD */
96 {L("iclower"), f_recompile, OPT_0BOOL, 0},
97 /* O_IGNORECASE 4BSD */
98 {L("ignorecase"), f_recompile, OPT_0BOOL, 0},
99 /* O_INPUTENCODING */
100 {L("inputencoding"),f_encoding, OPT_STR, OPT_WC},
101 /* O_KEYTIME 4.4BSD */
102 {L("keytime"), NULL, OPT_NUM, 0},
103 /* O_LEFTRIGHT 4.4BSD */
104 {L("leftright"), f_reformat, OPT_0BOOL, 0},
105 /* O_LINES 4.4BSD */
106 {L("lines"), f_lines, OPT_NUM, OPT_NOSAVE},
107 /* O_LISP 4BSD
108 * XXX
109 * When the lisp option is implemented, delete the OPT_NOSAVE flag,
110 * so that :mkexrc dumps it.
111 */
112 {L("lisp"), f_lisp, OPT_0BOOL, OPT_NOSAVE},
113 /* O_LIST 4BSD */
114 {L("list"), f_reformat, OPT_0BOOL, 0},
115 /* O_LOCKFILES 4.4BSD
116 * XXX
117 * Locking isn't reliable enough over NFS to require it, in addition,
118 * it's a serious startup performance problem over some remote links.
119 */
120 {L("lock"), NULL, OPT_1BOOL, 0},
121 /* O_MAGIC 4BSD */
122 {L("magic"), NULL, OPT_1BOOL, 0},
123 /* O_MATCHCHARS NetBSD 2.0 */
124 {L("matchchars"), NULL, OPT_STR, OPT_PAIRS},
125 /* O_MATCHTIME 4.4BSD */
126 {L("matchtime"), NULL, OPT_NUM, 0},
127 /* O_MESG 4BSD */
128 {L("mesg"), NULL, OPT_1BOOL, 0},
129 /* O_MODELINE 4BSD
130 * !!!
131 * This has been documented in historical systems as both "modeline"
132 * and as "modelines". Regardless of the name, this option represents
133 * a security problem of mammoth proportions, not to mention a stunning
134 * example of what your intro CS professor referred to as the perils of
135 * mixing code and data. Don't add it, or I will kill you.
136 */
137 {L("modeline"), NULL, OPT_0BOOL, OPT_NOSET},
138 /* O_MSGCAT 4.4BSD */
139 {L("msgcat"), f_msgcat, OPT_STR, 0},
140 /* O_NOPRINT 4.4BSD */
141 {L("noprint"), f_print, OPT_STR, 0},
142 /* O_NUMBER 4BSD */
143 {L("number"), f_reformat, OPT_0BOOL, 0},
144 /* O_OCTAL 4.4BSD */
145 {L("octal"), f_print, OPT_0BOOL, 0},
146 /* O_OPEN 4BSD */
147 {L("open"), NULL, OPT_1BOOL, 0},
148 /* O_OPTIMIZE 4BSD */
149 {L("optimize"), NULL, OPT_1BOOL, 0},
150 /* O_PARAGRAPHS 4BSD */
151 {L("paragraphs"), NULL, OPT_STR, OPT_PAIRS},
152 /* O_PATH 4.4BSD */
153 {L("path"), NULL, OPT_STR, 0},
154 /* O_PRINT 4.4BSD */
155 {L("print"), f_print, OPT_STR, 0},
156 /* O_PROMPT 4BSD */
157 {L("prompt"), NULL, OPT_1BOOL, 0},
158 /* O_READONLY 4BSD (undocumented) */
159 {L("readonly"), f_readonly, OPT_0BOOL, OPT_ALWAYS},
160 /* O_RECDIR 4.4BSD */
161 {L("recdir"), NULL, OPT_STR, 0},
162 /* O_REDRAW 4BSD */
163 {L("redraw"), NULL, OPT_0BOOL, 0},
164 /* O_REMAP 4BSD */
165 {L("remap"), NULL, OPT_1BOOL, 0},
166 /* O_REPORT 4BSD */
167 {L("report"), NULL, OPT_NUM, 0},
168 /* O_RULER 4.4BSD */
169 {L("ruler"), NULL, OPT_0BOOL, 0},
170 /* O_SCROLL 4BSD */
171 {L("scroll"), NULL, OPT_NUM, 0},
172 /* O_SEARCHINCR 4.4BSD */
173 {L("searchincr"), NULL, OPT_0BOOL, 0},
174 /* O_SECTIONS 4BSD */
175 {L("sections"), NULL, OPT_STR, OPT_PAIRS},
176 /* O_SECURE 4.4BSD */
177 {L("secure"), NULL, OPT_0BOOL, OPT_NOUNSET},
178 /* O_SHELL 4BSD */
179 {L("shell"), NULL, OPT_STR, 0},
180 /* O_SHELLMETA 4.4BSD */
181 {L("shellmeta"), NULL, OPT_STR, 0},
182 /* O_SHIFTWIDTH 4BSD */
183 {L("shiftwidth"), NULL, OPT_NUM, OPT_NOZERO},
184 /* O_SHOWFILENAME */
185 {L("showfilename"), NULL, OPT_0BOOL, 0},
186 /* O_SHOWMATCH 4BSD */
187 {L("showmatch"), NULL, OPT_0BOOL, 0},
188 /* O_SHOWMODE 4.4BSD */
189 {L("showmode"), NULL, OPT_0BOOL, 0},
190 /* O_SIDESCROLL 4.4BSD */
191 {L("sidescroll"), NULL, OPT_NUM, OPT_NOZERO},
192 /* O_SLOWOPEN 4BSD */
193 {L("slowopen"), NULL, OPT_0BOOL, 0},
194 /* O_SOURCEANY 4BSD (undocumented)
195 * !!!
196 * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they
197 * were owned by the user. The sourceany option was an undocumented
198 * feature of historic vi which permitted the startup source'ing of
199 * .exrc files the user didn't own. This is an obvious security problem,
200 * and we ignore the option.
201 */
202 {L("sourceany"), NULL, OPT_0BOOL, OPT_NOSET},
203 /* O_TABSTOP 4BSD */
204 {L("tabstop"), f_reformat, OPT_NUM, OPT_NOZERO},
205 /* O_TAGLENGTH 4BSD */
206 {L("taglength"), NULL, OPT_NUM, 0},
207 /* O_TAGS 4BSD */
208 {L("tags"), NULL, OPT_STR, 0},
209 /* O_TERM 4BSD
210 * !!!
211 * By default, the historic vi always displayed information about two
212 * options, redraw and term. Term seems sufficient.
213 */
214 {L("term"), NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE},
215 /* O_TERSE 4BSD */
216 {L("terse"), NULL, OPT_0BOOL, 0},
217 /* O_TILDEOP 4.4BSD */
218 {L("tildeop"), NULL, OPT_0BOOL, 0},
219 /* O_TIMEOUT 4BSD (undocumented) */
220 {L("timeout"), NULL, OPT_1BOOL, 0},
221 /* O_TTYWERASE 4.4BSD */
222 {L("ttywerase"), f_ttywerase, OPT_0BOOL, 0},
223 /* O_VERBOSE 4.4BSD */
224 {L("verbose"), NULL, OPT_0BOOL, 0},
225 /* O_W1200 4BSD */
226 {L("w1200"), f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
227 /* O_W300 4BSD */
228 {L("w300"), f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
229 /* O_W9600 4BSD */
230 {L("w9600"), f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE},
231 /* O_WARN 4BSD */
232 {L("warn"), NULL, OPT_1BOOL, 0},
233 /* O_WINDOW 4BSD */
234 {L("window"), f_window, OPT_NUM, 0},
235 /* O_WINDOWNAME 4BSD */
236 {L("windowname"), NULL, OPT_0BOOL, 0},
237 /* O_WRAPLEN 4.4BSD */
238 {L("wraplen"), NULL, OPT_NUM, 0},
239 /* O_WRAPMARGIN 4BSD */
240 {L("wrapmargin"), NULL, OPT_NUM, 0},
241 /* O_WRAPSCAN 4BSD */
242 {L("wrapscan"), NULL, OPT_1BOOL, 0},
243 /* O_WRITEANY 4BSD */
244 {L("writeany"), NULL, OPT_0BOOL, 0},
245 {NULL},
246 };
247
248 typedef struct abbrev {
249 CHAR_T *name;
250 int offset;
251 } OABBREV;
252
253 static OABBREV const abbrev[] = {
254 {L("ai"), O_AUTOINDENT}, /* 4BSD */
255 {L("ap"), O_AUTOPRINT}, /* 4BSD */
256 {L("aw"), O_AUTOWRITE}, /* 4BSD */
257 {L("bf"), O_BEAUTIFY}, /* 4BSD */
258 {L("co"), O_COLUMNS}, /* 4.4BSD */
259 {L("dir"), O_TMPDIR}, /* 4BSD */
260 {L("eb"), O_ERRORBELLS}, /* 4BSD */
261 {L("ed"), O_EDCOMPATIBLE}, /* 4BSD */
262 {L("et"), O_EXPANDTAB}, /* NetBSD 5.0 */
263 {L("ex"), O_EXRC}, /* System V (undocumented) */
264 {L("fe"), O_FILEENCODING},
265 {L("ht"), O_HARDTABS}, /* 4BSD */
266 {L("ic"), O_IGNORECASE}, /* 4BSD */
267 {L("ie"), O_INPUTENCODING},
268 {L("li"), O_LINES}, /* 4.4BSD */
269 {L("modelines"), O_MODELINE}, /* HPUX */
270 {L("nu"), O_NUMBER}, /* 4BSD */
271 {L("opt"), O_OPTIMIZE}, /* 4BSD */
272 {L("para"), O_PARAGRAPHS}, /* 4BSD */
273 {L("re"), O_REDRAW}, /* O'Reilly */
274 {L("ro"), O_READONLY}, /* 4BSD (undocumented) */
275 {L("scr"), O_SCROLL}, /* 4BSD (undocumented) */
276 {L("sect"), O_SECTIONS}, /* O'Reilly */
277 {L("sh"), O_SHELL}, /* 4BSD */
278 {L("slow"), O_SLOWOPEN}, /* 4BSD */
279 {L("sm"), O_SHOWMATCH}, /* 4BSD */
280 {L("smd"), O_SHOWMODE}, /* 4BSD */
281 {L("sw"), O_SHIFTWIDTH}, /* 4BSD */
282 {L("tag"), O_TAGS}, /* 4BSD (undocumented) */
283 {L("tl"), O_TAGLENGTH}, /* 4BSD */
284 {L("to"), O_TIMEOUT}, /* 4BSD (undocumented) */
285 {L("ts"), O_TABSTOP}, /* 4BSD */
286 {L("tty"), O_TERM}, /* 4BSD (undocumented) */
287 {L("ttytype"), O_TERM}, /* 4BSD (undocumented) */
288 {L("w"), O_WINDOW}, /* O'Reilly */
289 {L("wa"), O_WRITEANY}, /* 4BSD */
290 {L("wi"), O_WINDOW}, /* 4BSD (undocumented) */
291 {L("wl"), O_WRAPLEN}, /* 4.4BSD */
292 {L("wm"), O_WRAPMARGIN}, /* 4BSD */
293 {L("ws"), O_WRAPSCAN}, /* 4BSD */
294 {NULL},
295 };
296
297 /*
298 * opts_init --
299 * Initialize some of the options.
300 *
301 * PUBLIC: int opts_init(SCR *, int *);
302 */
303 int
opts_init(SCR * sp,int * oargs)304 opts_init(SCR *sp, int *oargs)
305 {
306 ARGS *argv[2], a, b;
307 OPTLIST const *op;
308 u_long v;
309 int cnt, optindx = 0;
310 char *s;
311 CHAR_T b2[1024];
312
313 a.bp = b2;
314 b.bp = NULL;
315 a.len = b.len = 0;
316 argv[0] = &a;
317 argv[1] = &b;
318
319 /* Set numeric and string default values. */
320 #define OI(indx, str) do { \
321 a.len = STRLEN(str); \
322 if (STRCMP((CHAR_T*)str, b2) != 0) \
323 (void)MEMCPY(b2, str, a.len+1); \
324 if (opts_set(sp, argv, NULL)) { \
325 optindx = indx; \
326 goto err; \
327 } \
328 } while (0)
329 /*
330 * Indirect global options to global space. Specifically, set up
331 * terminal, lines, columns first, they're used by other options.
332 * Note, don't set the flags until we've set up the indirection.
333 */
334 if (o_set(sp, O_TERM, 0, NULL, GO_TERM))
335 goto err;
336 F_SET(&sp->opts[O_TERM], OPT_GLOBAL);
337 if (o_set(sp, O_LINES, 0, NULL, GO_LINES))
338 goto err;
339 F_SET(&sp->opts[O_LINES], OPT_GLOBAL);
340 if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS))
341 goto err;
342 F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL);
343 if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE))
344 goto err;
345 F_SET(&sp->opts[O_SECURE], OPT_GLOBAL);
346
347 /* Initialize string values. */
348 (void)SPRINTF(b2, SIZE(b2),
349 L("cdpath=%s"), (s = getenv("CDPATH")) == NULL ? ":" : s);
350 OI(O_CDPATH, b2);
351 OI(O_CEDIT, L("cedit=\033"));
352
353 /*
354 * !!!
355 * Vi historically stored temporary files in /var/tmp. We store them
356 * in /tmp by default, hoping it's a memory based file system. There
357 * are two ways to change this -- the user can set either the directory
358 * option or the TMPDIR environmental variable.
359 */
360 (void)SPRINTF(b2, SIZE(b2),
361 L("directory=%s"), (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s);
362 OI(O_TMPDIR, b2);
363 OI(O_ESCAPETIME, L("escapetime=6"));
364 OI(O_FILEC, L("filec=\t"));
365 OI(O_KEYTIME, L("keytime=6"));
366 OI(O_MATCHCHARS, L("matchchars=()[]{}"));
367 OI(O_MATCHTIME, L("matchtime=7"));
368 (void)SPRINTF(b2, SIZE(b2), L("msgcat=%s"), _PATH_MSGCAT);
369 OI(O_MSGCAT, b2);
370 OI(O_REPORT, L("report=5"));
371 OI(O_PARAGRAPHS, L("paragraphs=IPLPPPQPP LIpplpipbp"));
372 (void)SPRINTF(b2, SIZE(b2), L("path=%s"), "");
373 OI(O_PATH, b2);
374 (void)SPRINTF(b2, SIZE(b2), L("recdir=%s"), NVI_PATH_PRESERVE);
375 OI(O_RECDIR, b2);
376 OI(O_SECTIONS, L("sections=NHSHH HUnhsh"));
377 (void)SPRINTF(b2, SIZE(b2),
378 L("shell=%s"), (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s);
379 OI(O_SHELL, b2);
380 OI(O_SHELLMETA, L("shellmeta=~{[*?$`'\"\\"));
381 OI(O_SHIFTWIDTH, L("shiftwidth=8"));
382 OI(O_SIDESCROLL, L("sidescroll=16"));
383 OI(O_TABSTOP, L("tabstop=8"));
384 (void)SPRINTF(b2, SIZE(b2), L("tags=%s"), _PATH_TAGS);
385 OI(O_TAGS, b2);
386
387 /*
388 * XXX
389 * Initialize O_SCROLL here, after term; initializing term should
390 * have created a LINES/COLUMNS value.
391 */
392 if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0)
393 v = 1;
394 (void)SPRINTF(b2, SIZE(b2), L("scroll=%ld"), v);
395 OI(O_SCROLL, b2);
396
397 /*
398 * The default window option values are:
399 * 8 if baud rate <= 600
400 * 16 if baud rate <= 1200
401 * LINES - 1 if baud rate > 1200
402 *
403 * Note, the windows option code will correct any too-large value
404 * or when the O_LINES value is 1.
405 */
406 if (sp->gp->scr_baud(sp, &v))
407 return (1);
408 if (v <= 600)
409 v = 8;
410 else if (v <= 1200)
411 v = 16;
412 else if ((v = O_VAL(sp, O_LINES) - 1) == 0)
413 v = 1;
414
415 (void)SPRINTF(b2, SIZE(b2), L("window=%lu"), v);
416 OI(O_WINDOW, b2);
417
418 /*
419 * Set boolean default values, and copy all settings into the default
420 * information. OS_NOFREE is set, we're copying, not replacing.
421 */
422 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) {
423 if (F_ISSET(op, OPT_GLOBAL))
424 continue;
425 switch (op->type) {
426 case OPT_0BOOL:
427 break;
428 case OPT_1BOOL:
429 O_SET(sp, cnt);
430 O_D_SET(sp, cnt);
431 break;
432 case OPT_NUM:
433 o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt));
434 break;
435 case OPT_STR:
436 if (O_STR(sp, cnt) != NULL && o_set(sp, cnt,
437 OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0))
438 goto err;
439 break;
440 default:
441 abort();
442 }
443 }
444
445 /*
446 * !!!
447 * Some options can be initialized by the command name or the
448 * command-line arguments. They don't set the default values,
449 * it's historic practice.
450 */
451 for (; *oargs != -1; ++oargs)
452 OI(*oargs, optlist[*oargs].name);
453 #undef OI
454 return (0);
455
456 err: msgq_wstr(sp, M_ERR, optlist[optindx].name,
457 "031|Unable to set default %s option");
458 return (1);
459 }
460
461 /*
462 * opts_set --
463 * Change the values of one or more options.
464 *
465 * PUBLIC: int opts_set(SCR *, ARGS *[], char *);
466 */
467 int
opts_set(SCR * sp,ARGS * argv[],char * usage)468 opts_set(SCR *sp, ARGS *argv[], char *usage)
469 {
470 enum optdisp disp;
471 enum nresult nret;
472 OPTLIST const *op;
473 OPTION *spo;
474 u_long isset, turnoff, value;
475 int ch, equals, nf, nf2, offset, qmark, rval;
476 CHAR_T *endp, *name, *p, *sep;
477 char *p2, *t2;
478 char *np;
479 size_t nlen;
480
481 disp = NO_DISPLAY;
482 for (rval = 0; argv[0]->len != 0; ++argv) {
483 /*
484 * The historic vi dumped the options for each occurrence of
485 * "all" in the set list. Puhleeze.
486 */
487 if (!STRCMP(argv[0]->bp, L("all"))) {
488 disp = ALL_DISPLAY;
489 continue;
490 }
491
492 /* Find equals sign or question mark. */
493 for (sep = NULL, equals = qmark = 0,
494 p = name = argv[0]->bp; (ch = *p) != '\0'; ++p)
495 if (ch == '=' || ch == '?') {
496 if (p == name) {
497 if (usage != NULL)
498 msgq(sp, M_ERR,
499 "032|Usage: %s", usage);
500 return (1);
501 }
502 sep = p;
503 if (ch == '=')
504 equals = 1;
505 else
506 qmark = 1;
507 break;
508 }
509
510 turnoff = 0;
511 op = NULL;
512 if (sep != NULL)
513 *sep++ = '\0';
514
515 /* Search for the name, then name without any leading "no". */
516 if ((op = opts_search(name)) == NULL &&
517 name[0] == 'n' && name[1] == 'o') {
518 turnoff = 1;
519 name += 2;
520 op = opts_search(name);
521 }
522 if (op == NULL) {
523 opts_nomatch(sp, name);
524 rval = 1;
525 continue;
526 }
527
528 /* Find current option values. */
529 offset = op - optlist;
530 spo = sp->opts + offset;
531
532 /*
533 * !!!
534 * Historically, the question mark could be a separate
535 * argument.
536 */
537 if (!equals && !qmark &&
538 argv[1]->len == 1 && argv[1]->bp[0] == '?') {
539 ++argv;
540 qmark = 1;
541 }
542
543 /* Set name, value. */
544 switch (op->type) {
545 case OPT_0BOOL:
546 case OPT_1BOOL:
547 /* Some options may not be reset. */
548 if (F_ISSET(op, OPT_NOUNSET) && turnoff) {
549 msgq_wstr(sp, M_ERR, name,
550 "291|set: the %s option may not be turned off");
551 rval = 1;
552 break;
553 }
554
555 /* Some options may not be set. */
556 if (F_ISSET(op, OPT_NOSET) && !turnoff) {
557 msgq_wstr(sp, M_ERR, name,
558 "313|set: the %s option may never be turned on");
559 rval = 1;
560 break;
561 }
562
563 if (equals) {
564 msgq_wstr(sp, M_ERR, name,
565 "034|set: [no]%s option doesn't take a value");
566 rval = 1;
567 break;
568 }
569 if (qmark) {
570 if (!disp)
571 disp = SELECT_DISPLAY;
572 F_SET(spo, OPT_SELECTED);
573 break;
574 }
575
576 /*
577 * Do nothing if the value is unchanged, the underlying
578 * functions can be expensive.
579 */
580 isset = !turnoff;
581 if (!F_ISSET(op, OPT_ALWAYS)) {
582 if (isset) {
583 if (O_ISSET(sp, offset))
584 break;
585 } else
586 if (!O_ISSET(sp, offset))
587 break;
588 }
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(SCR *sp, int opt, u_int flags, char *str, u_long val)
761 {
762 OPTION *op;
763
764 /* Set a pointer to the options area. */
765 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ?
766 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt];
767
768 /* Copy the string, if requested. */
769 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) {
770 msgq(sp, M_SYSERR, NULL);
771 return (1);
772 }
773
774 /* Free the previous string, if requested, and set the value. */
775 if LF_ISSET(OS_DEF)
776 if (LF_ISSET(OS_STR | OS_STRDUP)) {
777 if (!LF_ISSET(OS_NOFREE))
778 free(op->o_def.str);
779 op->o_def.str = str;
780 } else
781 op->o_def.val = val;
782 else
783 if (LF_ISSET(OS_STR | OS_STRDUP)) {
784 if (!LF_ISSET(OS_NOFREE))
785 free(op->o_cur.str);
786 op->o_cur.str = str;
787 } else
788 op->o_cur.val = val;
789 return (0);
790 }
791
792 /*
793 * opts_empty --
794 * Return 1 if the string option is invalid, 0 if it's OK.
795 *
796 * PUBLIC: int opts_empty(SCR *, int, int);
797 */
798 int
opts_empty(SCR * sp,int off,int silent)799 opts_empty(SCR *sp, int off, int silent)
800 {
801 char *p;
802
803 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') {
804 if (!silent)
805 msgq_wstr(sp, M_ERR, optlist[off].name,
806 "305|No %s edit option specified");
807 return (1);
808 }
809 return (0);
810 }
811
812 /*
813 * opts_dump --
814 * List the current values of selected options.
815 *
816 * PUBLIC: void opts_dump(SCR *, enum optdisp);
817 */
818 void
opts_dump(SCR * sp,enum optdisp type)819 opts_dump(SCR *sp, enum optdisp type)
820 {
821 OPTLIST const *op;
822 int base, b_num, cnt, col, colwidth, curlen, s_num;
823 int numcols, numrows, row;
824 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT];
825 char nbuf[20];
826
827 /*
828 * Options are output in two groups -- those that fit in a column and
829 * those that don't. Output is done on 6 character "tab" boundaries
830 * for no particular reason. (Since we don't output tab characters,
831 * we can ignore the terminal's tab settings.) Ignore the user's tab
832 * setting because we have no idea how reasonable it is.
833 *
834 * Find a column width we can live with, testing from 10 columns to 1.
835 */
836 for (numcols = 10; numcols > 1; --numcols) {
837 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1);
838 if (colwidth >= 10) {
839 colwidth =
840 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1);
841 numcols = sp->cols / colwidth;
842 break;
843 }
844 colwidth = 0;
845 }
846
847 /*
848 * Get the set of options to list, entering them into
849 * the column list or the overflow list.
850 */
851 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) {
852 cnt = op - optlist;
853
854 /* If OPT_NDISP set, it's never displayed. */
855 if (F_ISSET(op, OPT_NDISP))
856 continue;
857
858 switch (type) {
859 case ALL_DISPLAY: /* Display all. */
860 break;
861 case CHANGED_DISPLAY: /* Display changed. */
862 /* If OPT_ADISP set, it's always "changed". */
863 if (F_ISSET(op, OPT_ADISP))
864 break;
865 switch (op->type) {
866 case OPT_0BOOL:
867 case OPT_1BOOL:
868 case OPT_NUM:
869 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt))
870 continue;
871 break;
872 case OPT_STR:
873 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) ||
874 (O_D_STR(sp, cnt) != NULL &&
875 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))))
876 continue;
877 break;
878 }
879 break;
880 case SELECT_DISPLAY: /* Display selected. */
881 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED))
882 continue;
883 break;
884 default:
885 case NO_DISPLAY:
886 abort();
887 }
888 F_CLR(&sp->opts[cnt], OPT_SELECTED);
889
890 curlen = STRLEN(op->name);
891 switch (op->type) {
892 case OPT_0BOOL:
893 case OPT_1BOOL:
894 if (!O_ISSET(sp, cnt))
895 curlen += 2;
896 break;
897 case OPT_NUM:
898 (void)snprintf(nbuf,
899 sizeof(nbuf), "%ld", O_VAL(sp, cnt));
900 curlen += strlen(nbuf);
901 break;
902 case OPT_STR:
903 if (O_STR(sp, cnt) != NULL)
904 curlen += strlen(O_STR(sp, cnt));
905 curlen += 3;
906 break;
907 }
908 /* Offset by 2 so there's a gap. */
909 if (curlen <= colwidth - 2)
910 s_op[s_num++] = cnt;
911 else
912 b_op[b_num++] = cnt;
913 }
914
915 if (s_num > 0) {
916 /* Figure out the number of rows. */
917 if (s_num > numcols) {
918 numrows = s_num / numcols;
919 if (s_num % numcols)
920 ++numrows;
921 } else
922 numrows = 1;
923
924 /* Display the options in sorted order. */
925 for (row = 0; row < numrows;) {
926 for (base = row, col = 0; col < numcols; ++col) {
927 cnt = opts_print(sp, &optlist[s_op[base]]);
928 if ((base += numrows) >= s_num)
929 break;
930 (void)ex_printf(sp, "%*s",
931 (int)(colwidth - cnt), "");
932 }
933 if (++row < numrows || b_num)
934 (void)ex_puts(sp, "\n");
935 }
936 }
937
938 for (row = 0; row < b_num;) {
939 (void)opts_print(sp, &optlist[b_op[row]]);
940 if (++row < b_num)
941 (void)ex_puts(sp, "\n");
942 }
943 (void)ex_puts(sp, "\n");
944 }
945
946 /*
947 * opts_print --
948 * Print out an option.
949 */
950 static int
opts_print(SCR * sp,OPTLIST const * op)951 opts_print(SCR *sp, OPTLIST const *op)
952 {
953 int curlen, offset;
954 const char *p;
955
956 curlen = 0;
957 offset = op - optlist;
958 switch (op->type) {
959 case OPT_0BOOL:
960 case OPT_1BOOL:
961 curlen += ex_printf(sp,
962 "%s"WS, O_ISSET(sp, offset) ? "" : "no", op->name);
963 break;
964 case OPT_NUM:
965 curlen += ex_printf(sp, WS"=%ld", op->name, O_VAL(sp, offset));
966 break;
967 case OPT_STR:
968 curlen += ex_printf(sp, WS"=\"", op->name);
969 p = O_STR(sp, offset);
970 /* Keep correct count for unprintable character sequences */
971 if (p != NULL)
972 for (; *p != '\0'; ++p)
973 curlen += ex_puts(sp, unctrl(*p));
974 curlen += ex_puts(sp, "\"");
975 break;
976 }
977 return (curlen);
978 }
979
980 /*
981 * opts_save --
982 * Write the current configuration to a file.
983 *
984 * PUBLIC: int opts_save(SCR *, FILE *);
985 */
986 int
opts_save(SCR * sp,FILE * fp)987 opts_save(SCR *sp, FILE *fp)
988 {
989 OPTLIST const *op;
990 CHAR_T ch, *p;
991 char nch, *np;
992 int cnt;
993
994 for (op = optlist; op->name != NULL; ++op) {
995 if (F_ISSET(op, OPT_NOSAVE))
996 continue;
997 cnt = op - optlist;
998 switch (op->type) {
999 case OPT_0BOOL:
1000 case OPT_1BOOL:
1001 if (O_ISSET(sp, cnt))
1002 (void)fprintf(fp, "set "WS"\n", op->name);
1003 else
1004 (void)fprintf(fp, "set no"WS"\n", op->name);
1005 break;
1006 case OPT_NUM:
1007 (void)fprintf(fp,
1008 "set "WS"=%-3ld\n", op->name, O_VAL(sp, cnt));
1009 break;
1010 case OPT_STR:
1011 if (O_STR(sp, cnt) == NULL)
1012 break;
1013 (void)fprintf(fp, "set ");
1014 for (p = op->name; (ch = *p) != '\0'; ++p) {
1015 if (cmdskip(ch) || ch == '\\')
1016 (void)putc('\\', fp);
1017 fprintf(fp, WC, ch);
1018 }
1019 (void)putc('=', fp);
1020 for (np = O_STR(sp, cnt); (nch = *np) != '\0'; ++np) {
1021 if (cmdskip(nch) || nch == '\\')
1022 (void)putc('\\', fp);
1023 (void)putc(nch, fp);
1024 }
1025 (void)putc('\n', fp);
1026 break;
1027 }
1028 if (ferror(fp)) {
1029 msgq(sp, M_SYSERR, NULL);
1030 return (1);
1031 }
1032 }
1033 return (0);
1034 }
1035
1036 /*
1037 * opts_search --
1038 * Search for an option.
1039 *
1040 * PUBLIC: OPTLIST const *opts_search(CHAR_T *);
1041 */
1042 OPTLIST const *
opts_search(CHAR_T * name)1043 opts_search(CHAR_T *name)
1044 {
1045 OPTLIST const *op, *found;
1046 OABBREV atmp, *ap;
1047 OPTLIST otmp;
1048 size_t len;
1049
1050 /* Check list of abbreviations. */
1051 atmp.name = name;
1052 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1,
1053 sizeof(OABBREV), opts_abbcmp)) != NULL)
1054 return (optlist + ap->offset);
1055
1056 /* Check list of options. */
1057 otmp.name = name;
1058 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1,
1059 sizeof(OPTLIST), opts_cmp)) != NULL)
1060 return (op);
1061
1062 /*
1063 * Check to see if the name is the prefix of one (and only one)
1064 * option. If so, return the option.
1065 */
1066 len = STRLEN(name);
1067 for (found = NULL, op = optlist; op->name != NULL; ++op) {
1068 if (op->name[0] < name[0])
1069 continue;
1070 if (op->name[0] > name[0])
1071 break;
1072 if (!MEMCMP(op->name, name, len)) {
1073 if (found != NULL)
1074 return (NULL);
1075 found = op;
1076 }
1077 }
1078 return (found);
1079 }
1080
1081 /*
1082 * opts_nomatch --
1083 * Standard nomatch error message for options.
1084 *
1085 * PUBLIC: void opts_nomatch(SCR *, CHAR_T *);
1086 */
1087 void
opts_nomatch(SCR * sp,CHAR_T * name)1088 opts_nomatch(SCR *sp, CHAR_T *name)
1089 {
1090 msgq_wstr(sp, M_ERR, name,
1091 "033|set: no %s option: 'set all' gives all option values");
1092 }
1093
1094 static int
opts_abbcmp(const void * a,const void * b)1095 opts_abbcmp(const void *a, const void *b)
1096 {
1097 return(STRCMP(((OABBREV *)a)->name, ((OABBREV *)b)->name));
1098 }
1099
1100 static int
opts_cmp(const void * a,const void * b)1101 opts_cmp(const void *a, const void *b)
1102 {
1103 return(STRCMP(((OPTLIST *)a)->name, ((OPTLIST *)b)->name));
1104 }
1105
1106 /*
1107 * opts_copy --
1108 * Copy a screen's OPTION array.
1109 *
1110 * PUBLIC: int opts_copy(SCR *, SCR *);
1111 */
1112 int
opts_copy(SCR * orig,SCR * sp)1113 opts_copy(SCR *orig, SCR *sp)
1114 {
1115 int cnt, rval;
1116
1117 /* Copy most everything without change. */
1118 memcpy(sp->opts, orig->opts, sizeof(orig->opts));
1119
1120 /* Copy the string edit options. */
1121 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1122 if (optlist[cnt].type != OPT_STR ||
1123 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1124 continue;
1125 /*
1126 * If never set, or already failed, NULL out the entries --
1127 * have to continue after failure, otherwise would have two
1128 * screens referencing the same memory.
1129 */
1130 if (rval || O_STR(sp, cnt) == NULL) {
1131 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0);
1132 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1133 continue;
1134 }
1135
1136 /* Copy the current string. */
1137 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) {
1138 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1139 goto nomem;
1140 }
1141
1142 /* Copy the default string. */
1143 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt,
1144 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) {
1145 nomem: msgq(orig, M_SYSERR, NULL);
1146 rval = 1;
1147 }
1148 }
1149 return (rval);
1150 }
1151
1152 /*
1153 * opts_free --
1154 * Free all option strings
1155 *
1156 * PUBLIC: void opts_free(SCR *);
1157 */
1158 void
opts_free(SCR * sp)1159 opts_free(SCR *sp)
1160 {
1161 int cnt;
1162
1163 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1164 if (optlist[cnt].type != OPT_STR ||
1165 F_ISSET(&sp->opts[cnt], OPT_GLOBAL))
1166 continue;
1167 free(O_STR(sp, cnt));
1168 free(O_D_STR(sp, cnt));
1169 }
1170 }
1171