GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/vi/build/../common/options.c Lines: 0 365 0.0 %
Date: 2017-11-07 Branches: 0 487 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: options.c,v 1.26 2017/07/31 19:45:49 martijn Exp $	*/
2
3
/*-
4
 * Copyright (c) 1991, 1993, 1994
5
 *	The Regents of the University of California.  All rights reserved.
6
 * Copyright (c) 1991, 1993, 1994, 1995, 1996
7
 *	Keith Bostic.  All rights reserved.
8
 *
9
 * See the LICENSE file for redistribution information.
10
 */
11
12
#include "config.h"
13
14
#include <sys/types.h>
15
#include <sys/queue.h>
16
#include <sys/stat.h>
17
#include <sys/time.h>
18
19
#include <bitstring.h>
20
#include <ctype.h>
21
#include <errno.h>
22
#include <limits.h>
23
#include <paths.h>
24
#include <stdio.h>
25
#include <stdlib.h>
26
#include <string.h>
27
#include <unistd.h>
28
29
#include "common.h"
30
#include "../vi/vi.h"
31
#include "pathnames.h"
32
33
static int	 	 opts_abbcmp(const void *, const void *);
34
static int	 	 opts_cmp(const void *, const void *);
35
static int	 	 opts_print(SCR *, OPTLIST const *);
36
37
/*
38
 * O'Reilly noted options and abbreviations are from "Learning the VI Editor",
39
 * Fifth Edition, May 1992.  There's no way of knowing what systems they are
40
 * actually from.
41
 *
42
 * HPUX noted options and abbreviations are from "The Ultimate Guide to the
43
 * VI and EX Text Editors", 1990.
44
 */
45
OPTLIST const optlist[] = {
46
/* O_ALTWERASE	  4.4BSD */
47
	{"altwerase",	f_altwerase,	OPT_0BOOL,	0},
48
/* O_AUTOINDENT	    4BSD */
49
	{"autoindent",	NULL,		OPT_0BOOL,	0},
50
/* O_AUTOPRINT	    4BSD */
51
	{"autoprint",	NULL,		OPT_1BOOL,	0},
52
/* O_AUTOWRITE	    4BSD */
53
	{"autowrite",	NULL,		OPT_0BOOL,	0},
54
/* O_BACKUP	  4.4BSD */
55
	{"backup",	NULL,		OPT_STR,	0},
56
/* O_BEAUTIFY	    4BSD */
57
	{"beautify",	NULL,		OPT_0BOOL,	0},
58
/* O_CDPATH	  4.4BSD */
59
	{"cdpath",	NULL,		OPT_STR,	0},
60
/* O_CEDIT	  4.4BSD */
61
	{"cedit",	NULL,		OPT_STR,	0},
62
/* O_COLUMNS	  4.4BSD */
63
	{"columns",	f_columns,	OPT_NUM,	OPT_NOSAVE},
64
/* O_COMMENT	  4.4BSD */
65
	{"comment",	NULL,		OPT_0BOOL,	0},
66
/* O_EDCOMPATIBLE   4BSD */
67
	{"edcompatible",NULL,		OPT_0BOOL,	0},
68
/* O_ESCAPETIME	  4.4BSD */
69
	{"escapetime",	NULL,		OPT_NUM,	0},
70
/* O_ERRORBELLS	    4BSD */
71
	{"errorbells",	NULL,		OPT_0BOOL,	0},
72
/* O_EXRC	System V (undocumented) */
73
	{"exrc",	NULL,		OPT_0BOOL,	0},
74
/* O_EXTENDED	  4.4BSD */
75
	{"extended",	f_recompile,	OPT_0BOOL,	0},
76
/* O_FILEC	  4.4BSD */
77
	{"filec",	NULL,		OPT_STR,	0},
78
/* O_FLASH	    HPUX */
79
	{"flash",	NULL,		OPT_0BOOL,	0},
80
/* O_HARDTABS	    4BSD */
81
	{"hardtabs",	NULL,		OPT_NUM,	0},
82
/* O_ICLOWER	  4.4BSD */
83
	{"iclower",	f_recompile,	OPT_0BOOL,	0},
84
/* O_IGNORECASE	    4BSD */
85
	{"ignorecase",	f_recompile,	OPT_0BOOL,	0},
86
/* O_KEYTIME	  4.4BSD */
87
	{"keytime",	NULL,		OPT_NUM,	0},
88
/* O_LEFTRIGHT	  4.4BSD */
89
	{"leftright",	f_reformat,	OPT_0BOOL,	0},
90
/* O_LINES	  4.4BSD */
91
	{"lines",	f_lines,	OPT_NUM,	OPT_NOSAVE},
92
/* O_LIST	    4BSD */
93
	{"list",	f_reformat,	OPT_0BOOL,	0},
94
/* O_LOCKFILES	  4.4BSD
95
 *	XXX
96
 *	Locking isn't reliable enough over NFS to require it, in addition,
97
 *	it's a serious startup performance problem over some remote links.
98
 */
99
	{"lock",	NULL,		OPT_1BOOL,	0},
100
/* O_MAGIC	    4BSD */
101
	{"magic",	NULL,		OPT_1BOOL,	0},
102
/* O_MATCHTIME	  4.4BSD */
103
	{"matchtime",	NULL,		OPT_NUM,	0},
104
/* O_MESG	    4BSD */
105
	{"mesg",	NULL,		OPT_1BOOL,	0},
106
/* O_NOPRINT	  4.4BSD */
107
	{"noprint",	f_print,	OPT_STR,	OPT_EARLYSET},
108
/* O_NUMBER	    4BSD */
109
	{"number",	f_reformat,	OPT_0BOOL,	0},
110
/* O_OCTAL	  4.4BSD */
111
	{"octal",	f_print,	OPT_0BOOL,	OPT_EARLYSET},
112
/* O_OPEN	    4BSD */
113
	{"open",	NULL,		OPT_1BOOL,	0},
114
/* O_PARAGRAPHS	    4BSD */
115
	{"paragraphs",	f_paragraph,	OPT_STR,	0},
116
/* O_PATH	  4.4BSD */
117
	{"path",	NULL,		OPT_STR,	0},
118
/* O_PRINT	  4.4BSD */
119
	{"print",	f_print,	OPT_STR,	OPT_EARLYSET},
120
/* O_PROMPT	    4BSD */
121
	{"prompt",	NULL,		OPT_1BOOL,	0},
122
/* O_READONLY	    4BSD (undocumented) */
123
	{"readonly",	f_readonly,	OPT_0BOOL,	OPT_ALWAYS},
124
/* O_RECDIR	  4.4BSD */
125
	{"recdir",	NULL,		OPT_STR,	0},
126
/* O_REMAP	    4BSD */
127
	{"remap",	NULL,		OPT_1BOOL,	0},
128
/* O_REPORT	    4BSD */
129
	{"report",	NULL,		OPT_NUM,	0},
130
/* O_RULER	  4.4BSD */
131
	{"ruler",	NULL,		OPT_0BOOL,	0},
132
/* O_SCROLL	    4BSD */
133
	{"scroll",	NULL,		OPT_NUM,	0},
134
/* O_SEARCHINCR	  4.4BSD */
135
	{"searchincr",	NULL,		OPT_0BOOL,	0},
136
/* O_SECTIONS	    4BSD */
137
	{"sections",	f_section,	OPT_STR,	0},
138
/* O_SECURE	  4.4BSD */
139
	{"secure",	NULL,		OPT_0BOOL,	OPT_NOUNSET},
140
/* O_SHELL	    4BSD */
141
	{"shell",	NULL,		OPT_STR,	0},
142
/* O_SHELLMETA	  4.4BSD */
143
	{"shellmeta",	NULL,		OPT_STR,	0},
144
/* O_SHIFTWIDTH	    4BSD */
145
	{"shiftwidth",	NULL,		OPT_NUM,	OPT_NOZERO},
146
/* O_SHOWMATCH	    4BSD */
147
	{"showmatch",	NULL,		OPT_0BOOL,	0},
148
/* O_SHOWMODE	  4.4BSD */
149
	{"showmode",	NULL,		OPT_0BOOL,	0},
150
/* O_SIDESCROLL	  4.4BSD */
151
	{"sidescroll",	NULL,		OPT_NUM,	OPT_NOZERO},
152
/* O_TABSTOP	    4BSD */
153
	{"tabstop",	f_reformat,	OPT_NUM,	OPT_NOZERO},
154
/* O_TAGLENGTH	    4BSD */
155
	{"taglength",	NULL,		OPT_NUM,	0},
156
/* O_TAGS	    4BSD */
157
	{"tags",	NULL,		OPT_STR,	0},
158
/* O_TERM	    4BSD
159
 *	!!!
160
 *	By default, the historic vi always displayed information about two
161
 *	options, redraw and term.  Term seems sufficient.
162
 */
163
	{"term",	NULL,		OPT_STR,	OPT_ADISP|OPT_NOSAVE},
164
/* O_TERSE	    4BSD */
165
	{"terse",	NULL,		OPT_0BOOL,	0},
166
/* O_TILDEOP      4.4BSD */
167
	{"tildeop",	NULL,		OPT_0BOOL,	0},
168
/* O_TIMEOUT	    4BSD (undocumented) */
169
	{"timeout",	NULL,		OPT_1BOOL,	0},
170
/* O_TTYWERASE	  4.4BSD */
171
	{"ttywerase",	f_ttywerase,	OPT_0BOOL,	0},
172
/* O_VERBOSE	  4.4BSD */
173
	{"verbose",	NULL,		OPT_0BOOL,	0},
174
/* O_W1200	    4BSD */
175
	{"w1200",	f_w1200,	OPT_NUM,	OPT_NDISP|OPT_NOSAVE},
176
/* O_W300	    4BSD */
177
	{"w300",	f_w300,		OPT_NUM,	OPT_NDISP|OPT_NOSAVE},
178
/* O_W9600	    4BSD */
179
	{"w9600",	f_w9600,	OPT_NUM,	OPT_NDISP|OPT_NOSAVE},
180
/* O_WARN	    4BSD */
181
	{"warn",	NULL,		OPT_1BOOL,	0},
182
/* O_WINDOW	    4BSD */
183
	{"window",	f_window,	OPT_NUM,	0},
184
/* O_WINDOWNAME	    4BSD */
185
	{"windowname",	NULL,		OPT_0BOOL,	0},
186
/* O_WRAPLEN	  4.4BSD */
187
	{"wraplen",	NULL,		OPT_NUM,	0},
188
/* O_WRAPMARGIN	    4BSD */
189
	{"wrapmargin",	NULL,		OPT_NUM,	0},
190
/* O_WRAPSCAN	    4BSD */
191
	{"wrapscan",	NULL,		OPT_1BOOL,	0},
192
/* O_WRITEANY	    4BSD */
193
	{"writeany",	NULL,		OPT_0BOOL,	0},
194
	{NULL},
195
};
196
197
typedef struct abbrev {
198
        char *name;
199
        int offset;
200
} OABBREV;
201
202
static OABBREV const abbrev[] = {
203
	{"ai",		O_AUTOINDENT},		/*     4BSD */
204
	{"ap",		O_AUTOPRINT},		/*     4BSD */
205
	{"aw",		O_AUTOWRITE},		/*     4BSD */
206
	{"bf",		O_BEAUTIFY},		/*     4BSD */
207
	{"co",		O_COLUMNS},		/*   4.4BSD */
208
	{"eb",		O_ERRORBELLS},		/*     4BSD */
209
	{"ed",		O_EDCOMPATIBLE},	/*     4BSD */
210
	{"ex",		O_EXRC},		/* System V (undocumented) */
211
	{"ht",		O_HARDTABS},		/*     4BSD */
212
	{"ic",		O_IGNORECASE},		/*     4BSD */
213
	{"li",		O_LINES},		/*   4.4BSD */
214
	{"nu",		O_NUMBER},		/*     4BSD */
215
	{"para",	O_PARAGRAPHS},		/*     4BSD */
216
	{"ro",		O_READONLY},		/*     4BSD (undocumented) */
217
	{"scr",		O_SCROLL},		/*     4BSD (undocumented) */
218
	{"sect",	O_SECTIONS},		/* O'Reilly */
219
	{"sh",		O_SHELL},		/*     4BSD */
220
	{"sm",		O_SHOWMATCH},		/*     4BSD */
221
	{"smd",		O_SHOWMODE},		/*     4BSD */
222
	{"sw",		O_SHIFTWIDTH},		/*     4BSD */
223
	{"tag",		O_TAGS},		/*     4BSD (undocumented) */
224
	{"tl",		O_TAGLENGTH},		/*     4BSD */
225
	{"to",		O_TIMEOUT},		/*     4BSD (undocumented) */
226
	{"ts",		O_TABSTOP},		/*     4BSD */
227
	{"tty",		O_TERM},		/*     4BSD (undocumented) */
228
	{"ttytype",	O_TERM},		/*     4BSD (undocumented) */
229
	{"w",		O_WINDOW},		/* O'Reilly */
230
	{"wa",		O_WRITEANY},		/*     4BSD */
231
	{"wi",		O_WINDOW},		/*     4BSD (undocumented) */
232
	{"wl",		O_WRAPLEN},		/*   4.4BSD */
233
	{"wm",		O_WRAPMARGIN},		/*     4BSD */
234
	{"ws",		O_WRAPSCAN},		/*     4BSD */
235
	{NULL},
236
};
237
238
/*
239
 * opts_init --
240
 *	Initialize some of the options.
241
 *
242
 * PUBLIC: int opts_init(SCR *, int *);
243
 */
244
int
245
opts_init(SCR *sp, int *oargs)
246
{
247
	ARGS *argv[2], a, b;
248
	OPTLIST const *op;
249
	u_long v;
250
	int optindx;
251
	char *s, b1[1024];
252
253
	a.bp = b1;
254
	b.bp = NULL;
255
	a.len = b.len = 0;
256
	argv[0] = &a;
257
	argv[1] = &b;
258
259
	/* Set numeric and string default values. */
260
#define OI_b1(indx) {							\
261
	a.len = strlen(b1);						\
262
	if (opts_set(sp, argv, NULL)) {					\
263
		optindx = indx;						\
264
		goto err;						\
265
	}								\
266
}
267
#define	OI(indx, str) {							\
268
	(void)strlcpy(b1, (str), sizeof(b1));				\
269
	OI_b1(indx);							\
270
}
271
272
	/*
273
	 * Indirect global options to global space.  Specifically, set up
274
	 * terminal, lines, columns first, they're used by other options.
275
	 * Note, don't set the flags until we've set up the indirection.
276
	 */
277
	if (o_set(sp, O_TERM, 0, NULL, GO_TERM)) {
278
		optindx = O_TERM;
279
		goto err;
280
	}
281
	F_SET(&sp->opts[O_TERM], OPT_GLOBAL);
282
	if (o_set(sp, O_LINES, 0, NULL, GO_LINES)) {
283
		optindx = O_LINES;
284
		goto err;
285
	}
286
	F_SET(&sp->opts[O_LINES], OPT_GLOBAL);
287
	if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS)) {
288
		optindx = O_COLUMNS;
289
		goto err;
290
	}
291
	F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL);
292
	if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE)) {
293
		optindx = O_SECURE;
294
		goto err;
295
	}
296
	F_SET(&sp->opts[O_SECURE], OPT_GLOBAL);
297
298
	/* Initialize string values. */
299
	(void)snprintf(b1, sizeof(b1),
300
	    "cdpath=%s", (s = getenv("CDPATH")) == NULL ? ":" : s);
301
	OI_b1(O_CDPATH);
302
	OI(O_ESCAPETIME, "escapetime=1");
303
	OI(O_FILEC, "filec=\t");
304
	OI(O_KEYTIME, "keytime=6");
305
	OI(O_MATCHTIME, "matchtime=7");
306
	OI(O_REPORT, "report=5");
307
	OI(O_PARAGRAPHS, "paragraphs=IPLPPPQPP LIpplpipbpBlBdPpLpIt");
308
	OI(O_PATH, "path=");
309
	(void)snprintf(b1, sizeof(b1), "recdir=%s", _PATH_PRESERVE);
310
	OI_b1(O_RECDIR);
311
	OI(O_SECTIONS, "sections=NHSHH HUnhshShSs");
312
	(void)snprintf(b1, sizeof(b1),
313
	    "shell=%s", (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s);
314
	OI_b1(O_SHELL);
315
	OI(O_SHELLMETA, "shellmeta=~{[*?$`'\"\\");
316
	OI(O_SHIFTWIDTH, "shiftwidth=8");
317
	OI(O_SIDESCROLL, "sidescroll=16");
318
	OI(O_TABSTOP, "tabstop=8");
319
	(void)snprintf(b1, sizeof(b1), "tags=%s", _PATH_TAGS);
320
	OI_b1(O_TAGS);
321
322
	/*
323
	 * XXX
324
	 * Initialize O_SCROLL here, after term; initializing term should
325
	 * have created a LINES/COLUMNS value.
326
	 */
327
	if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0)
328
		v = 1;
329
	(void)snprintf(b1, sizeof(b1), "scroll=%ld", v);
330
	OI_b1(O_SCROLL);
331
332
	/*
333
	 * The default window option values are:
334
	 *		8 if baud rate <=  600
335
	 *	       16 if baud rate <= 1200
336
	 *	LINES - 1 if baud rate  > 1200
337
	 *
338
	 * Note, the windows option code will correct any too-large value
339
	 * or when the O_LINES value is 1.
340
	 */
341
	if (sp->gp->scr_baud(sp, &v))
342
		return (1);
343
	if (v <= 600)
344
		v = 8;
345
	else if (v <= 1200)
346
		v = 16;
347
	else
348
		v = O_VAL(sp, O_LINES) - 1;
349
	(void)snprintf(b1, sizeof(b1), "window=%lu", v);
350
	OI_b1(O_WINDOW);
351
352
	/*
353
	 * Set boolean default values, and copy all settings into the default
354
	 * information.  OS_NOFREE is set, we're copying, not replacing.
355
	 */
356
	for (op = optlist, optindx = 0; op->name != NULL; ++op, ++optindx)
357
		switch (op->type) {
358
		case OPT_0BOOL:
359
			break;
360
		case OPT_1BOOL:
361
			O_SET(sp, optindx);
362
			O_D_SET(sp, optindx);
363
			break;
364
		case OPT_NUM:
365
			o_set(sp, optindx, OS_DEF, NULL, O_VAL(sp, optindx));
366
			break;
367
		case OPT_STR:
368
			if (O_STR(sp, optindx) != NULL && o_set(sp, optindx,
369
			    OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, optindx), 0))
370
				goto err;
371
			break;
372
		default:
373
			abort();
374
		}
375
376
	/*
377
	 * !!!
378
	 * Some options can be initialized by the command name or the
379
	 * command-line arguments.  They don't set the default values,
380
	 * it's historic practice.
381
	 */
382
	for (; *oargs != -1; ++oargs)
383
		OI(*oargs, optlist[*oargs].name);
384
	return (0);
385
#undef OI
386
#undef OI_b1
387
388
err:	msgq(sp, M_ERR,
389
	    "Unable to set default %s option", optlist[optindx].name);
390
	return (1);
391
}
392
393
/*
394
 * opts_set --
395
 *	Change the values of one or more options.
396
 *
397
 * PUBLIC: int opts_set(SCR *, ARGS *[], char *);
398
 */
399
int
400
opts_set(SCR *sp, ARGS *argv[], char *usage)
401
{
402
	enum optdisp disp;
403
	enum nresult nret;
404
	OPTLIST const *op;
405
	OPTION *spo;
406
	u_long value, turnoff;
407
	int ch, equals, nf, nf2, offset, qmark, rval;
408
	char *endp, *name, *p, *sep, *t;
409
410
	disp = NO_DISPLAY;
411
	for (rval = 0; argv[0]->len != 0; ++argv) {
412
		/*
413
		 * The historic vi dumped the options for each occurrence of
414
		 * "all" in the set list.  Puhleeze.
415
		 */
416
		if (!strcmp(argv[0]->bp, "all")) {
417
			disp = ALL_DISPLAY;
418
			continue;
419
		}
420
421
		/* Find equals sign or question mark. */
422
		for (sep = NULL, equals = qmark = 0,
423
		    p = name = argv[0]->bp; (ch = *p) != '\0'; ++p)
424
			if (ch == '=' || ch == '?') {
425
				if (p == name) {
426
					if (usage != NULL)
427
						msgq(sp, M_ERR,
428
						    "Usage: %s", usage);
429
					return (1);
430
				}
431
				sep = p;
432
				if (ch == '=')
433
					equals = 1;
434
				else
435
					qmark = 1;
436
				break;
437
			}
438
439
		turnoff = 0;
440
		op = NULL;
441
		if (sep != NULL)
442
			*sep++ = '\0';
443
444
		/* Search for the name, then name without any leading "no". */
445
		if ((op = opts_search(name)) == NULL &&
446
		    name[0] == 'n' && name[1] == 'o') {
447
			turnoff = 1;
448
			name += 2;
449
			op = opts_search(name);
450
		}
451
		if (op == NULL) {
452
			opts_nomatch(sp, name);
453
			rval = 1;
454
			continue;
455
		}
456
457
		/* Find current option values. */
458
		offset = op - optlist;
459
		spo = sp->opts + offset;
460
461
		/*
462
		 * !!!
463
		 * Historically, the question mark could be a separate
464
		 * argument.
465
		 */
466
		if (!equals && !qmark &&
467
		    argv[1]->len == 1 && argv[1]->bp[0] == '?') {
468
			++argv;
469
			qmark = 1;
470
		}
471
472
		/* Set name, value. */
473
		switch (op->type) {
474
		case OPT_0BOOL:
475
		case OPT_1BOOL:
476
			/* Some options may not be reset. */
477
			if (F_ISSET(op, OPT_NOUNSET) && turnoff) {
478
				msgq_str(sp, M_ERR, name,
479
			    "set: the %s option may not be turned off");
480
				rval = 1;
481
				break;
482
			}
483
484
			if (equals) {
485
				msgq_str(sp, M_ERR, name,
486
			    "set: [no]%s option doesn't take a value");
487
				rval = 1;
488
				break;
489
			}
490
			if (qmark) {
491
				if (!disp)
492
					disp = SELECT_DISPLAY;
493
				F_SET(spo, OPT_SELECTED);
494
				break;
495
			}
496
497
			/*
498
			 * Do nothing if the value is unchanged, the underlying
499
			 * functions can be expensive.
500
			 */
501
			if (!F_ISSET(op, OPT_ALWAYS)) {
502
				if (turnoff) {
503
					if (!O_ISSET(sp, offset))
504
						break;
505
				} else {
506
					if (O_ISSET(sp, offset))
507
						break;
508
				}
509
			}
510
511
			if (F_ISSET(op, OPT_EARLYSET)) {
512
			    /* Set the value. */
513
			    if (turnoff)
514
				O_CLR(sp, offset);
515
			    else
516
				O_SET(sp, offset);
517
			}
518
519
			/* Report to subsystems. */
520
			if ((op->func != NULL &&
521
			    op->func(sp, spo, NULL, &turnoff)) ||
522
			    ex_optchange(sp, offset, NULL, &turnoff) ||
523
			    v_optchange(sp, offset, NULL, &turnoff) ||
524
			    sp->gp->scr_optchange(sp, offset, NULL, &turnoff)) {
525
				rval = 1;
526
				break;
527
			}
528
529
			if (!F_ISSET(op, OPT_EARLYSET)) {
530
			    /* Set the value. */
531
			    if (turnoff)
532
				O_CLR(sp, offset);
533
			    else
534
				O_SET(sp, offset);
535
			}
536
			break;
537
		case OPT_NUM:
538
			if (turnoff) {
539
				msgq_str(sp, M_ERR, name,
540
				    "set: %s option isn't a boolean");
541
				rval = 1;
542
				break;
543
			}
544
			if (qmark || !equals) {
545
				if (!disp)
546
					disp = SELECT_DISPLAY;
547
				F_SET(spo, OPT_SELECTED);
548
				break;
549
			}
550
551
			if (!isdigit(sep[0]))
552
				goto badnum;
553
			if ((nret =
554
			    nget_uslong(&value, sep, &endp, 10)) != NUM_OK) {
555
				p = msg_print(sp, name, &nf);
556
				t = msg_print(sp, sep, &nf2);
557
				switch (nret) {
558
				case NUM_ERR:
559
					msgq(sp, M_SYSERR,
560
					    "set: %s option: %s", p, t);
561
					break;
562
				case NUM_OVER:
563
					msgq(sp, M_ERR,
564
			    "set: %s option: %s: value overflow", p, t);
565
					break;
566
				case NUM_OK:
567
				case NUM_UNDER:
568
					abort();
569
				}
570
				if (nf)
571
					FREE_SPACE(sp, p, 0);
572
				if (nf2)
573
					FREE_SPACE(sp, t, 0);
574
				rval = 1;
575
				break;
576
			}
577
			if (*endp && !isblank(*endp)) {
578
badnum:				p = msg_print(sp, name, &nf);
579
				t = msg_print(sp, sep, &nf2);
580
				msgq(sp, M_ERR,
581
		    "set: %s option: %s is an illegal number", p, t);
582
				if (nf)
583
					FREE_SPACE(sp, p, 0);
584
				if (nf2)
585
					FREE_SPACE(sp, t, 0);
586
				rval = 1;
587
				break;
588
			}
589
590
			/* Some options may never be set to zero. */
591
			if (F_ISSET(op, OPT_NOZERO) && value == 0) {
592
				msgq_str(sp, M_ERR, name,
593
			    "set: the %s option may never be set to 0");
594
				rval = 1;
595
				break;
596
			}
597
598
			/*
599
			 * Do nothing if the value is unchanged, the underlying
600
			 * functions can be expensive.
601
			 */
602
			if (!F_ISSET(op, OPT_ALWAYS) &&
603
			    O_VAL(sp, offset) == value)
604
				break;
605
606
			if (F_ISSET(op, OPT_EARLYSET)) {
607
			    /* Set the value. */
608
			    if (o_set(sp, offset, 0, NULL, value)) {
609
				rval = 1;
610
				break;
611
			    }
612
			}
613
614
			/* Report to subsystems. */
615
			if ((op->func != NULL &&
616
			    op->func(sp, spo, sep, &value)) ||
617
			    ex_optchange(sp, offset, sep, &value) ||
618
			    v_optchange(sp, offset, sep, &value) ||
619
			    sp->gp->scr_optchange(sp, offset, sep, &value)) {
620
				rval = 1;
621
				break;
622
			}
623
624
			if (!F_ISSET(op, OPT_EARLYSET)) {
625
			    /* Set the value. */
626
			    if (o_set(sp, offset, 0, NULL, value))
627
				rval = 1;
628
			}
629
			break;
630
		case OPT_STR:
631
			if (turnoff) {
632
				msgq_str(sp, M_ERR, name,
633
				    "set: %s option isn't a boolean");
634
				rval = 1;
635
				break;
636
			}
637
			if (qmark || !equals) {
638
				if (!disp)
639
					disp = SELECT_DISPLAY;
640
				F_SET(spo, OPT_SELECTED);
641
				break;
642
			}
643
644
			/*
645
			 * Do nothing if the value is unchanged, the underlying
646
			 * functions can be expensive.
647
			 */
648
			if (!F_ISSET(op, OPT_ALWAYS) &&
649
			    O_STR(sp, offset) != NULL &&
650
			    !strcmp(O_STR(sp, offset), sep))
651
				break;
652
653
			if (F_ISSET(op, OPT_EARLYSET)) {
654
			    /* Set the value. */
655
			    if (o_set(sp, offset, OS_STRDUP, sep, 0)) {
656
				rval = 1;
657
				break;
658
			    }
659
			}
660
661
			/* Report to subsystems. */
662
			if ((op->func != NULL &&
663
			    op->func(sp, spo, sep, NULL)) ||
664
			    ex_optchange(sp, offset, sep, NULL) ||
665
			    v_optchange(sp, offset, sep, NULL) ||
666
			    sp->gp->scr_optchange(sp, offset, sep, NULL)) {
667
				rval = 1;
668
				break;
669
			}
670
671
			if (!F_ISSET(op, OPT_EARLYSET)) {
672
			    /* Set the value. */
673
			    if (o_set(sp, offset, OS_STRDUP, sep, 0))
674
				rval = 1;
675
			}
676
			break;
677
		default:
678
			abort();
679
		}
680
	}
681
	if (disp != NO_DISPLAY)
682
		opts_dump(sp, disp);
683
	return (rval);
684
}
685
686
/*
687
 * o_set --
688
 *	Set an option's value.
689
 *
690
 * PUBLIC: int o_set(SCR *, int, u_int, char *, u_long);
691
 */
692
int
693
o_set(SCR *sp, int opt, u_int flags, char *str, u_long val)
694
{
695
	OPTION *op;
696
697
	/* Set a pointer to the options area. */
698
	op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ?
699
	    &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt];
700
701
	/* Copy the string, if requested. */
702
	if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) {
703
		msgq(sp, M_SYSERR, NULL);
704
		return (1);
705
	}
706
707
	/* Free the previous string, if requested, and set the value. */
708
	if (LF_ISSET(OS_DEF))
709
		if (LF_ISSET(OS_STR | OS_STRDUP)) {
710
			if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL)
711
				free(op->o_def.str);
712
			op->o_def.str = str;
713
		} else
714
			op->o_def.val = val;
715
	else
716
		if (LF_ISSET(OS_STR | OS_STRDUP)) {
717
			if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL)
718
				free(op->o_cur.str);
719
			op->o_cur.str = str;
720
		} else
721
			op->o_cur.val = val;
722
	return (0);
723
}
724
725
/*
726
 * opts_empty --
727
 *	Return 1 if the string option is invalid, 0 if it's OK.
728
 *
729
 * PUBLIC: int opts_empty(SCR *, int, int);
730
 */
731
int
732
opts_empty(SCR *sp, int off, int silent)
733
{
734
	char *p;
735
736
	if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') {
737
		if (!silent)
738
			msgq_str(sp, M_ERR, optlist[off].name,
739
			    "No %s edit option specified");
740
		return (1);
741
	}
742
	return (0);
743
}
744
745
/*
746
 * opts_dump --
747
 *	List the current values of selected options.
748
 *
749
 * PUBLIC: void opts_dump(SCR *, enum optdisp);
750
 */
751
void
752
opts_dump(SCR *sp, enum optdisp type)
753
{
754
	OPTLIST const *op;
755
	int base, b_num, cnt, col, colwidth, curlen, s_num;
756
	int numcols, numrows, row;
757
	int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT];
758
	char nbuf[20];
759
760
	/*
761
	 * Options are output in two groups -- those that fit in a column and
762
	 * those that don't.  Output is done on 6 character "tab" boundaries
763
	 * for no particular reason.  (Since we don't output tab characters,
764
	 * we can ignore the terminal's tab settings.)  Ignore the user's tab
765
	 * setting because we have no idea how reasonable it is.
766
	 *
767
	 * Find a column width we can live with, testing from 10 columns to 1.
768
	 */
769
	for (numcols = 10; numcols > 1; --numcols) {
770
		colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1);
771
		if (colwidth >= 10) {
772
			colwidth =
773
			    (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1);
774
			numcols = sp->cols / colwidth;
775
			break;
776
		}
777
		colwidth = 0;
778
	}
779
780
	/*
781
	 * Get the set of options to list, entering them into
782
	 * the column list or the overflow list.
783
	 */
784
	for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) {
785
		cnt = op - optlist;
786
787
		/* If OPT_NDISP set, it's never displayed. */
788
		if (F_ISSET(op, OPT_NDISP))
789
			continue;
790
791
		switch (type) {
792
		case ALL_DISPLAY:		/* Display all. */
793
			break;
794
		case CHANGED_DISPLAY:		/* Display changed. */
795
			/* If OPT_ADISP set, it's always "changed". */
796
			if (F_ISSET(op, OPT_ADISP))
797
				break;
798
			switch (op->type) {
799
			case OPT_0BOOL:
800
			case OPT_1BOOL:
801
			case OPT_NUM:
802
				if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt))
803
					continue;
804
				break;
805
			case OPT_STR:
806
				if (O_STR(sp, cnt) == O_D_STR(sp, cnt) ||
807
				    (O_D_STR(sp, cnt) != NULL &&
808
				    !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))))
809
					continue;
810
				break;
811
			}
812
			break;
813
		case SELECT_DISPLAY:		/* Display selected. */
814
			if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED))
815
				continue;
816
			break;
817
		default:
818
		case NO_DISPLAY:
819
			abort();
820
		}
821
		F_CLR(&sp->opts[cnt], OPT_SELECTED);
822
823
		curlen = strlen(op->name);
824
		switch (op->type) {
825
		case OPT_0BOOL:
826
		case OPT_1BOOL:
827
			if (!O_ISSET(sp, cnt))
828
				curlen += 2;
829
			break;
830
		case OPT_NUM:
831
			(void)snprintf(nbuf,
832
			    sizeof(nbuf), "%ld", O_VAL(sp, cnt));
833
			curlen += strlen(nbuf);
834
			break;
835
		case OPT_STR:
836
			if (O_STR(sp, cnt) != NULL)
837
				curlen += strlen(O_STR(sp, cnt));
838
			curlen += 3;
839
			break;
840
		}
841
		/* Offset by 2 so there's a gap. */
842
		if (curlen <= colwidth - 2)
843
			s_op[s_num++] = cnt;
844
		else
845
			b_op[b_num++] = cnt;
846
	}
847
848
	if (s_num > 0) {
849
		/* Figure out the number of rows. */
850
		if (s_num > numcols) {
851
			numrows = s_num / numcols;
852
			if (s_num % numcols)
853
				++numrows;
854
		} else
855
			numrows = 1;
856
857
		/* Display the options in sorted order. */
858
		for (row = 0; row < numrows;) {
859
			for (base = row, col = 0; col < numcols; ++col) {
860
				cnt = opts_print(sp, &optlist[s_op[base]]);
861
				if ((base += numrows) >= s_num)
862
					break;
863
				(void)ex_printf(sp, "%*s",
864
				    (int)(colwidth - cnt), "");
865
			}
866
			if (++row < numrows || b_num)
867
				(void)ex_puts(sp, "\n");
868
		}
869
	}
870
871
	for (row = 0; row < b_num;) {
872
		(void)opts_print(sp, &optlist[b_op[row]]);
873
		if (++row < b_num)
874
			(void)ex_puts(sp, "\n");
875
	}
876
	(void)ex_puts(sp, "\n");
877
}
878
879
/*
880
 * opts_print --
881
 *	Print out an option.
882
 */
883
static int
884
opts_print(SCR *sp, OPTLIST const *op)
885
{
886
	int curlen, offset;
887
888
	curlen = 0;
889
	offset = op - optlist;
890
	switch (op->type) {
891
	case OPT_0BOOL:
892
	case OPT_1BOOL:
893
		curlen += ex_printf(sp,
894
		    "%s%s", O_ISSET(sp, offset) ? "" : "no", op->name);
895
		break;
896
	case OPT_NUM:
897
		curlen += ex_printf(sp, "%s=%ld", op->name, O_VAL(sp, offset));
898
		break;
899
	case OPT_STR:
900
		curlen += ex_printf(sp, "%s=\"%s\"", op->name,
901
		    O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset));
902
		break;
903
	}
904
	return (curlen);
905
}
906
907
/*
908
 * opts_save --
909
 *	Write the current configuration to a file.
910
 *
911
 * PUBLIC: int opts_save(SCR *, FILE *);
912
 */
913
int
914
opts_save(SCR *sp, FILE *fp)
915
{
916
	OPTLIST const *op;
917
	int ch, cnt;
918
	char *p;
919
920
	for (op = optlist; op->name != NULL; ++op) {
921
		if (F_ISSET(op, OPT_NOSAVE))
922
			continue;
923
		cnt = op - optlist;
924
		switch (op->type) {
925
		case OPT_0BOOL:
926
		case OPT_1BOOL:
927
			if (O_ISSET(sp, cnt))
928
				(void)fprintf(fp, "set %s\n", op->name);
929
			else
930
				(void)fprintf(fp, "set no%s\n", op->name);
931
			break;
932
		case OPT_NUM:
933
			(void)fprintf(fp,
934
			    "set %s=%-3ld\n", op->name, O_VAL(sp, cnt));
935
			break;
936
		case OPT_STR:
937
			if (O_STR(sp, cnt) == NULL)
938
				break;
939
			(void)fprintf(fp, "set ");
940
			for (p = op->name; (ch = *p) != '\0'; ++p) {
941
				if (isblank(ch) || ch == '\\')
942
					(void)putc('\\', fp);
943
				(void)putc(ch, fp);
944
			}
945
			(void)putc('=', fp);
946
			for (p = O_STR(sp, cnt); (ch = *p) != '\0'; ++p) {
947
				if (isblank(ch) || ch == '\\')
948
					(void)putc('\\', fp);
949
				(void)putc(ch, fp);
950
			}
951
			(void)putc('\n', fp);
952
			break;
953
		}
954
		if (ferror(fp)) {
955
			msgq(sp, M_SYSERR, NULL);
956
			return (1);
957
		}
958
	}
959
	return (0);
960
}
961
962
/*
963
 * opts_search --
964
 *	Search for an option.
965
 *
966
 * PUBLIC: OPTLIST const *opts_search(char *);
967
 */
968
OPTLIST const *
969
opts_search(char *name)
970
{
971
	OPTLIST const *op, *found;
972
	OABBREV atmp, *ap;
973
	OPTLIST otmp;
974
	size_t len;
975
976
	/* Check list of abbreviations. */
977
	atmp.name = name;
978
	if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1,
979
	    sizeof(OABBREV), opts_abbcmp)) != NULL)
980
		return (optlist + ap->offset);
981
982
	/* Check list of options. */
983
	otmp.name = name;
984
	if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1,
985
	    sizeof(OPTLIST), opts_cmp)) != NULL)
986
		return (op);
987
988
	/*
989
	 * Check to see if the name is the prefix of one (and only one)
990
	 * option.  If so, return the option.
991
	 */
992
	len = strlen(name);
993
	for (found = NULL, op = optlist; op->name != NULL; ++op) {
994
		if (op->name[0] < name[0])
995
			continue;
996
		if (op->name[0] > name[0])
997
			break;
998
		if (!memcmp(op->name, name, len)) {
999
			if (found != NULL)
1000
				return (NULL);
1001
			found = op;
1002
		}
1003
	}
1004
	return (found);
1005
}
1006
1007
/*
1008
 * opts_nomatch --
1009
 *	Standard nomatch error message for options.
1010
 *
1011
 * PUBLIC: void opts_nomatch(SCR *, char *);
1012
 */
1013
void
1014
opts_nomatch(SCR *sp, char *name)
1015
{
1016
	msgq_str(sp, M_ERR, name,
1017
	    "set: no %s option: 'set all' gives all option values");
1018
}
1019
1020
static int
1021
opts_abbcmp(const void *a, const void *b)
1022
{
1023
        return(strcmp(((OABBREV *)a)->name, ((OABBREV *)b)->name));
1024
}
1025
1026
static int
1027
opts_cmp(const void *a, const void *b)
1028
{
1029
        return(strcmp(((OPTLIST *)a)->name, ((OPTLIST *)b)->name));
1030
}
1031
1032
/*
1033
 * opts_copy --
1034
 *	Copy a screen's OPTION array.
1035
 *
1036
 * PUBLIC: int opts_copy(SCR *, SCR *);
1037
 */
1038
int
1039
opts_copy(SCR *orig, SCR *sp)
1040
{
1041
	int cnt, rval;
1042
1043
	/* Copy most everything without change. */
1044
	memcpy(sp->opts, orig->opts, sizeof(orig->opts));
1045
1046
	/* Copy the string edit options. */
1047
	for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1048
		if (optlist[cnt].type != OPT_STR ||
1049
		    F_ISSET(&optlist[cnt], OPT_GLOBAL))
1050
			continue;
1051
		/*
1052
		 * If never set, or already failed, NULL out the entries --
1053
		 * have to continue after failure, otherwise would have two
1054
		 * screens referencing the same memory.
1055
		 */
1056
		if (rval || O_STR(sp, cnt) == NULL) {
1057
			o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0);
1058
			o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1059
			continue;
1060
		}
1061
1062
		/* Copy the current string. */
1063
		if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) {
1064
			o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
1065
			goto nomem;
1066
		}
1067
1068
		/* Copy the default string. */
1069
		if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt,
1070
		    OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) {
1071
nomem:			msgq(orig, M_SYSERR, NULL);
1072
			rval = 1;
1073
		}
1074
	}
1075
	return (rval);
1076
}
1077
1078
/*
1079
 * opts_free --
1080
 *	Free all option strings
1081
 *
1082
 * PUBLIC: void opts_free(SCR *);
1083
 */
1084
void
1085
opts_free(SCR *sp)
1086
{
1087
	int cnt;
1088
1089
	for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) {
1090
		if (optlist[cnt].type != OPT_STR ||
1091
		    F_ISSET(&optlist[cnt], OPT_GLOBAL))
1092
			continue;
1093
		free(O_STR(sp, cnt));
1094
		free(O_D_STR(sp, cnt));
1095
	}
1096
}