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