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[] = "@(#)options.c 10.51 (Berkeley) 10/14/96"; 14 #endif /* not lint */ 15 16 #include <sys/types.h> 17 #include <sys/queue.h> 18 #include <sys/stat.h> 19 #include <sys/time.h> 20 21 #include <bitstring.h> 22 #include <ctype.h> 23 #include <errno.h> 24 #include <limits.h> 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 #include <unistd.h> 29 30 #include "common.h" 31 #include "../vi/vi.h" 32 #include "pathnames.h" 33 34 static int opts_abbcmp __P((const void *, const void *)); 35 static int opts_cmp __P((const void *, const void *)); 36 static int opts_print __P((SCR *, OPTLIST const *)); 37 38 /* 39 * O'Reilly noted options and abbreviations are from "Learning the VI Editor", 40 * Fifth Edition, May 1992. There's no way of knowing what systems they are 41 * actually from. 42 * 43 * HPUX noted options and abbreviations are from "The Ultimate Guide to the 44 * VI and EX Text Editors", 1990. 45 */ 46 OPTLIST const optlist[] = { 47 /* O_ALTWERASE 4.4BSD */ 48 {"altwerase", f_altwerase, OPT_0BOOL, 0}, 49 /* O_AUTOINDENT 4BSD */ 50 {"autoindent", NULL, OPT_0BOOL, 0}, 51 /* O_AUTOPRINT 4BSD */ 52 {"autoprint", NULL, OPT_1BOOL, 0}, 53 /* O_AUTOWRITE 4BSD */ 54 {"autowrite", NULL, OPT_0BOOL, 0}, 55 /* O_BACKUP 4.4BSD */ 56 {"backup", NULL, OPT_STR, 0}, 57 /* O_BEAUTIFY 4BSD */ 58 {"beautify", NULL, OPT_0BOOL, 0}, 59 /* O_CDPATH 4.4BSD */ 60 {"cdpath", NULL, OPT_STR, 0}, 61 /* O_CEDIT 4.4BSD */ 62 {"cedit", NULL, OPT_STR, 0}, 63 /* O_COLUMNS 4.4BSD */ 64 {"columns", f_columns, OPT_NUM, OPT_NOSAVE}, 65 /* O_COMMENT 4.4BSD */ 66 {"comment", NULL, OPT_0BOOL, 0}, 67 /* O_DIRECTORY 4BSD */ 68 {"directory", NULL, OPT_STR, 0}, 69 /* O_EDCOMPATIBLE 4BSD */ 70 {"edcompatible",NULL, OPT_0BOOL, 0}, 71 /* O_ESCAPETIME 4.4BSD */ 72 {"escapetime", NULL, OPT_NUM, 0}, 73 /* O_ERRORBELLS 4BSD */ 74 {"errorbells", NULL, OPT_0BOOL, 0}, 75 /* O_EXRC System V (undocumented) */ 76 {"exrc", NULL, OPT_0BOOL, 0}, 77 /* O_EXTENDED 4.4BSD */ 78 {"extended", f_recompile, OPT_0BOOL, 0}, 79 /* O_FILEC 4.4BSD */ 80 {"filec", NULL, OPT_STR, 0}, 81 /* O_FLASH HPUX */ 82 {"flash", NULL, OPT_1BOOL, 0}, 83 /* O_HARDTABS 4BSD */ 84 {"hardtabs", NULL, OPT_NUM, 0}, 85 /* O_ICLOWER 4.4BSD */ 86 {"iclower", f_recompile, OPT_0BOOL, 0}, 87 /* O_IGNORECASE 4BSD */ 88 {"ignorecase", f_recompile, OPT_0BOOL, 0}, 89 /* O_KEYTIME 4.4BSD */ 90 {"keytime", NULL, OPT_NUM, 0}, 91 /* O_LEFTRIGHT 4.4BSD */ 92 {"leftright", f_reformat, OPT_0BOOL, 0}, 93 /* O_LINES 4.4BSD */ 94 {"lines", f_lines, OPT_NUM, OPT_NOSAVE}, 95 /* O_LISP 4BSD 96 * XXX 97 * When the lisp option is implemented, delete the OPT_NOSAVE flag, 98 * so that :mkexrc dumps it. 99 */ 100 {"lisp", f_lisp, OPT_0BOOL, OPT_NOSAVE}, 101 /* O_LIST 4BSD */ 102 {"list", f_reformat, OPT_0BOOL, 0}, 103 /* O_LOCKFILES 4.4BSD 104 * XXX 105 * Locking isn't reliable enough over NFS to require it, in addition, 106 * it's a serious startup performance problem over some remote links. 107 */ 108 {"lock", NULL, OPT_1BOOL, 0}, 109 /* O_MAGIC 4BSD */ 110 {"magic", NULL, OPT_1BOOL, 0}, 111 /* O_MATCHTIME 4.4BSD */ 112 {"matchtime", NULL, OPT_NUM, 0}, 113 /* O_MESG 4BSD */ 114 {"mesg", NULL, OPT_1BOOL, 0}, 115 /* O_MODELINE 4BSD 116 * !!! 117 * This has been documented in historical systems as both "modeline" 118 * and as "modelines". Regardless of the name, this option represents 119 * a security problem of mammoth proportions, not to mention a stunning 120 * example of what your intro CS professor referred to as the perils of 121 * mixing code and data. Don't add it, or I will kill you. 122 */ 123 {"modeline", NULL, OPT_0BOOL, OPT_NOSET}, 124 /* O_MSGCAT 4.4BSD */ 125 {"msgcat", f_msgcat, OPT_STR, 0}, 126 /* O_NOPRINT 4.4BSD */ 127 {"noprint", f_print, OPT_STR, 0}, 128 /* O_NUMBER 4BSD */ 129 {"number", f_reformat, OPT_0BOOL, 0}, 130 /* O_OCTAL 4.4BSD */ 131 {"octal", f_print, OPT_0BOOL, 0}, 132 /* O_OPEN 4BSD */ 133 {"open", NULL, OPT_1BOOL, 0}, 134 /* O_OPTIMIZE 4BSD */ 135 {"optimize", NULL, OPT_1BOOL, 0}, 136 /* O_PARAGRAPHS 4BSD */ 137 {"paragraphs", f_paragraph, OPT_STR, 0}, 138 /* O_PATH 4.4BSD */ 139 {"path", NULL, OPT_STR, 0}, 140 /* O_PRINT 4.4BSD */ 141 {"print", f_print, OPT_STR, 0}, 142 /* O_PROMPT 4BSD */ 143 {"prompt", NULL, OPT_1BOOL, 0}, 144 /* O_READONLY 4BSD (undocumented) */ 145 {"readonly", f_readonly, OPT_0BOOL, OPT_ALWAYS}, 146 /* O_RECDIR 4.4BSD */ 147 {"recdir", NULL, OPT_STR, 0}, 148 /* O_REDRAW 4BSD */ 149 {"redraw", NULL, OPT_0BOOL, 0}, 150 /* O_REMAP 4BSD */ 151 {"remap", NULL, OPT_1BOOL, 0}, 152 /* O_REPORT 4BSD */ 153 {"report", NULL, OPT_NUM, 0}, 154 /* O_RULER 4.4BSD */ 155 {"ruler", NULL, OPT_0BOOL, 0}, 156 /* O_SCROLL 4BSD */ 157 {"scroll", NULL, OPT_NUM, 0}, 158 /* O_SEARCHINCR 4.4BSD */ 159 {"searchincr", NULL, OPT_0BOOL, 0}, 160 /* O_SECTIONS 4BSD */ 161 {"sections", f_section, OPT_STR, 0}, 162 /* O_SECURE 4.4BSD */ 163 {"secure", NULL, OPT_0BOOL, OPT_NOUNSET}, 164 /* O_SHELL 4BSD */ 165 {"shell", NULL, OPT_STR, 0}, 166 /* O_SHELLMETA 4.4BSD */ 167 {"shellmeta", NULL, OPT_STR, 0}, 168 /* O_SHIFTWIDTH 4BSD */ 169 {"shiftwidth", NULL, OPT_NUM, OPT_NOZERO}, 170 /* O_SHOWMATCH 4BSD */ 171 {"showmatch", NULL, OPT_0BOOL, 0}, 172 /* O_SHOWMODE 4.4BSD */ 173 {"showmode", NULL, OPT_0BOOL, 0}, 174 /* O_SIDESCROLL 4.4BSD */ 175 {"sidescroll", NULL, OPT_NUM, OPT_NOZERO}, 176 /* O_SLOWOPEN 4BSD */ 177 {"slowopen", NULL, OPT_0BOOL, 0}, 178 /* O_SOURCEANY 4BSD (undocumented) 179 * !!! 180 * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they 181 * were owned by the user. The sourceany option was an undocumented 182 * feature of historic vi which permitted the startup source'ing of 183 * .exrc files the user didn't own. This is an obvious security problem, 184 * and we ignore the option. 185 */ 186 {"sourceany", NULL, OPT_0BOOL, OPT_NOSET}, 187 /* O_TABSTOP 4BSD */ 188 {"tabstop", f_reformat, OPT_NUM, OPT_NOZERO}, 189 /* O_TAGLENGTH 4BSD */ 190 {"taglength", NULL, OPT_NUM, 0}, 191 /* O_TAGS 4BSD */ 192 {"tags", NULL, OPT_STR, 0}, 193 /* O_TERM 4BSD 194 * !!! 195 * By default, the historic vi always displayed information about two 196 * options, redraw and term. Term seems sufficient. 197 */ 198 {"term", NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE}, 199 /* O_TERSE 4BSD */ 200 {"terse", NULL, OPT_0BOOL, 0}, 201 /* O_TILDEOP 4.4BSD */ 202 {"tildeop", NULL, OPT_0BOOL, 0}, 203 /* O_TIMEOUT 4BSD (undocumented) */ 204 {"timeout", NULL, OPT_1BOOL, 0}, 205 /* O_TTYWERASE 4.4BSD */ 206 {"ttywerase", f_ttywerase, OPT_0BOOL, 0}, 207 /* O_VERBOSE 4.4BSD */ 208 {"verbose", NULL, OPT_0BOOL, 0}, 209 /* O_W1200 4BSD */ 210 {"w1200", f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 211 /* O_W300 4BSD */ 212 {"w300", f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 213 /* O_W9600 4BSD */ 214 {"w9600", f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 215 /* O_WARN 4BSD */ 216 {"warn", NULL, OPT_1BOOL, 0}, 217 /* O_WINDOW 4BSD */ 218 {"window", f_window, OPT_NUM, 0}, 219 /* O_WINDOWNAME 4BSD */ 220 {"windowname", NULL, OPT_0BOOL, 0}, 221 /* O_WRAPLEN 4.4BSD */ 222 {"wraplen", NULL, OPT_NUM, 0}, 223 /* O_WRAPMARGIN 4BSD */ 224 {"wrapmargin", NULL, OPT_NUM, 0}, 225 /* O_WRAPSCAN 4BSD */ 226 {"wrapscan", NULL, OPT_1BOOL, 0}, 227 /* O_WRITEANY 4BSD */ 228 {"writeany", NULL, OPT_0BOOL, 0}, 229 {NULL}, 230 }; 231 232 typedef struct abbrev { 233 char *name; 234 int offset; 235 } OABBREV; 236 237 static OABBREV const abbrev[] = { 238 {"ai", O_AUTOINDENT}, /* 4BSD */ 239 {"ap", O_AUTOPRINT}, /* 4BSD */ 240 {"aw", O_AUTOWRITE}, /* 4BSD */ 241 {"bf", O_BEAUTIFY}, /* 4BSD */ 242 {"co", O_COLUMNS}, /* 4.4BSD */ 243 {"dir", O_DIRECTORY}, /* 4BSD */ 244 {"eb", O_ERRORBELLS}, /* 4BSD */ 245 {"ed", O_EDCOMPATIBLE}, /* 4BSD */ 246 {"ex", O_EXRC}, /* System V (undocumented) */ 247 {"ht", O_HARDTABS}, /* 4BSD */ 248 {"ic", O_IGNORECASE}, /* 4BSD */ 249 {"li", O_LINES}, /* 4.4BSD */ 250 {"modelines", O_MODELINE}, /* HPUX */ 251 {"nu", O_NUMBER}, /* 4BSD */ 252 {"opt", O_OPTIMIZE}, /* 4BSD */ 253 {"para", O_PARAGRAPHS}, /* 4BSD */ 254 {"re", O_REDRAW}, /* O'Reilly */ 255 {"ro", O_READONLY}, /* 4BSD (undocumented) */ 256 {"scr", O_SCROLL}, /* 4BSD (undocumented) */ 257 {"sect", O_SECTIONS}, /* O'Reilly */ 258 {"sh", O_SHELL}, /* 4BSD */ 259 {"slow", O_SLOWOPEN}, /* 4BSD */ 260 {"sm", O_SHOWMATCH}, /* 4BSD */ 261 {"smd", O_SHOWMODE}, /* 4BSD */ 262 {"sw", O_SHIFTWIDTH}, /* 4BSD */ 263 {"tag", O_TAGS}, /* 4BSD (undocumented) */ 264 {"tl", O_TAGLENGTH}, /* 4BSD */ 265 {"to", O_TIMEOUT}, /* 4BSD (undocumented) */ 266 {"ts", O_TABSTOP}, /* 4BSD */ 267 {"tty", O_TERM}, /* 4BSD (undocumented) */ 268 {"ttytype", O_TERM}, /* 4BSD (undocumented) */ 269 {"w", O_WINDOW}, /* O'Reilly */ 270 {"wa", O_WRITEANY}, /* 4BSD */ 271 {"wi", O_WINDOW}, /* 4BSD (undocumented) */ 272 {"wl", O_WRAPLEN}, /* 4.4BSD */ 273 {"wm", O_WRAPMARGIN}, /* 4BSD */ 274 {"ws", O_WRAPSCAN}, /* 4BSD */ 275 {NULL}, 276 }; 277 278 /* 279 * opts_init -- 280 * Initialize some of the options. 281 * 282 * PUBLIC: int opts_init __P((SCR *, int *)); 283 */ 284 int 285 opts_init(sp, oargs) 286 SCR *sp; 287 int *oargs; 288 { 289 ARGS *argv[2], a, b; 290 OPTLIST const *op; 291 u_long v; 292 int cnt, optindx; 293 char *s, b1[1024]; 294 295 a.bp = b1; 296 b.bp = NULL; 297 a.len = b.len = 0; 298 argv[0] = &a; 299 argv[1] = &b; 300 301 /* Set numeric and string default values. */ 302 #define OI(indx, str) { \ 303 if (str != b1) /* GCC puts strings in text-space. */ \ 304 (void)strcpy(b1, str); \ 305 a.len = strlen(b1); \ 306 if (opts_set(sp, argv, NULL)) { \ 307 optindx = indx; \ 308 goto err; \ 309 } \ 310 } 311 /* 312 * Indirect global options to global space. Specifically, set up 313 * terminal, lines, columns first, they're used by other options. 314 * Note, don't set the flags until we've set up the indirection. 315 */ 316 if (o_set(sp, O_TERM, 0, NULL, GO_TERM)) 317 goto err; 318 F_SET(&sp->opts[O_TERM], OPT_GLOBAL); 319 if (o_set(sp, O_LINES, 0, NULL, GO_LINES)) 320 goto err; 321 F_SET(&sp->opts[O_LINES], OPT_GLOBAL); 322 if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS)) 323 goto err; 324 F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL); 325 if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE)) 326 goto err; 327 F_SET(&sp->opts[O_SECURE], OPT_GLOBAL); 328 329 /* Initialize string values. */ 330 (void)snprintf(b1, sizeof(b1), 331 "cdpath=%s", (s = getenv("CDPATH")) == NULL ? ":" : s); 332 OI(O_CDPATH, b1); 333 334 /* 335 * !!! 336 * Vi historically stored temporary files in /var/tmp. We store them 337 * in /tmp by default, hoping it's a memory based file system. There 338 * are two ways to change this -- the user can set either the directory 339 * option or the TMPDIR environmental variable. 340 */ 341 (void)snprintf(b1, sizeof(b1), 342 "directory=%s", (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s); 343 OI(O_DIRECTORY, b1); 344 OI(O_ESCAPETIME, "escapetime=6"); 345 OI(O_KEYTIME, "keytime=6"); 346 OI(O_MATCHTIME, "matchtime=7"); 347 (void)snprintf(b1, sizeof(b1), "msgcat=%s", _PATH_MSGCAT); 348 OI(O_MSGCAT, b1); 349 OI(O_REPORT, "report=5"); 350 OI(O_PARAGRAPHS, "paragraphs=IPLPPPQPP LIpplpipbp"); 351 (void)snprintf(b1, sizeof(b1), "path=%s", ""); 352 OI(O_PATH, b1); 353 (void)snprintf(b1, sizeof(b1), "recdir=%s", _PATH_PRESERVE); 354 OI(O_RECDIR, b1); 355 OI(O_SECTIONS, "sections=NHSHH HUnhsh"); 356 (void)snprintf(b1, sizeof(b1), 357 "shell=%s", (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s); 358 OI(O_SHELL, b1); 359 OI(O_SHELLMETA, "shellmeta=~{[*?$`'\"\\"); 360 OI(O_SHIFTWIDTH, "shiftwidth=8"); 361 OI(O_SIDESCROLL, "sidescroll=16"); 362 OI(O_TABSTOP, "tabstop=8"); 363 (void)snprintf(b1, sizeof(b1), "tags=%s", _PATH_TAGS); 364 OI(O_TAGS, b1); 365 366 /* 367 * XXX 368 * Initialize O_SCROLL here, after term; initializing term should 369 * have created a LINES/COLUMNS value. 370 */ 371 if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0) 372 v = 1; 373 (void)snprintf(b1, sizeof(b1), "scroll=%ld", v); 374 OI(O_SCROLL, b1); 375 376 /* 377 * The default window option values are: 378 * 8 if baud rate <= 600 379 * 16 if baud rate <= 1200 380 * LINES - 1 if baud rate > 1200 381 * 382 * Note, the windows option code will correct any too-large value 383 * or when the O_LINES value is 1. 384 */ 385 if (sp->gp->scr_baud(sp, &v)) 386 return (1); 387 if (v <= 600) 388 v = 8; 389 else if (v <= 1200) 390 v = 16; 391 else 392 v = O_VAL(sp, O_LINES) - 1; 393 (void)snprintf(b1, sizeof(b1), "window=%lu", v); 394 OI(O_WINDOW, b1); 395 396 /* 397 * Set boolean default values, and copy all settings into the default 398 * information. OS_NOFREE is set, we're copying, not replacing. 399 */ 400 for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt) 401 switch (op->type) { 402 case OPT_0BOOL: 403 break; 404 case OPT_1BOOL: 405 O_SET(sp, cnt); 406 O_D_SET(sp, cnt); 407 break; 408 case OPT_NUM: 409 o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt)); 410 break; 411 case OPT_STR: 412 if (O_STR(sp, cnt) != NULL && o_set(sp, cnt, 413 OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) 414 goto err; 415 break; 416 default: 417 abort(); 418 } 419 420 /* 421 * !!! 422 * Some options can be initialized by the command name or the 423 * command-line arguments. They don't set the default values, 424 * it's historic practice. 425 */ 426 for (; *oargs != -1; ++oargs) 427 OI(*oargs, optlist[*oargs].name); 428 return (0); 429 #undef OI 430 431 err: msgq(sp, M_ERR, 432 "031|Unable to set default %s option", optlist[optindx].name); 433 return (1); 434 } 435 436 /* 437 * opts_set -- 438 * Change the values of one or more options. 439 * 440 * PUBLIC: int opts_set __P((SCR *, ARGS *[], char *)); 441 */ 442 int 443 opts_set(sp, argv, usage) 444 SCR *sp; 445 ARGS *argv[]; 446 char *usage; 447 { 448 enum optdisp disp; 449 enum nresult nret; 450 OPTLIST const *op; 451 OPTION *spo; 452 u_long value, turnoff; 453 int ch, equals, nf, nf2, offset, qmark, rval; 454 char *endp, *name, *p, *sep, *t; 455 456 disp = NO_DISPLAY; 457 for (rval = 0; argv[0]->len != 0; ++argv) { 458 /* 459 * The historic vi dumped the options for each occurrence of 460 * "all" in the set list. Puhleeze. 461 */ 462 if (!strcmp(argv[0]->bp, "all")) { 463 disp = ALL_DISPLAY; 464 continue; 465 } 466 467 /* Find equals sign or question mark. */ 468 for (sep = NULL, equals = qmark = 0, 469 p = name = argv[0]->bp; (ch = *p) != '\0'; ++p) 470 if (ch == '=' || ch == '?') { 471 if (p == name) { 472 if (usage != NULL) 473 msgq(sp, M_ERR, 474 "032|Usage: %s", usage); 475 return (1); 476 } 477 sep = p; 478 if (ch == '=') 479 equals = 1; 480 else 481 qmark = 1; 482 break; 483 } 484 485 turnoff = 0; 486 op = NULL; 487 if (sep != NULL) 488 *sep++ = '\0'; 489 490 /* Search for the name, then name without any leading "no". */ 491 if ((op = opts_search(name)) == NULL && 492 name[0] == 'n' && name[1] == 'o') { 493 turnoff = 1; 494 name += 2; 495 op = opts_search(name); 496 } 497 if (op == NULL) { 498 opts_nomatch(sp, name); 499 rval = 1; 500 continue; 501 } 502 503 /* Find current option values. */ 504 offset = op - optlist; 505 spo = sp->opts + offset; 506 507 /* 508 * !!! 509 * Historically, the question mark could be a separate 510 * argument. 511 */ 512 if (!equals && !qmark && 513 argv[1]->len == 1 && argv[1]->bp[0] == '?') { 514 ++argv; 515 qmark = 1; 516 } 517 518 /* Set name, value. */ 519 switch (op->type) { 520 case OPT_0BOOL: 521 case OPT_1BOOL: 522 /* Some options may not be reset. */ 523 if (F_ISSET(op, OPT_NOUNSET) && turnoff) { 524 msgq_str(sp, M_ERR, name, 525 "291|set: the %s option may not be turned off"); 526 rval = 1; 527 break; 528 } 529 530 /* Some options may not be set. */ 531 if (F_ISSET(op, OPT_NOSET) && !turnoff) { 532 msgq_str(sp, M_ERR, name, 533 "313|set: the %s option may never be turned on"); 534 rval = 1; 535 break; 536 } 537 538 if (equals) { 539 msgq_str(sp, M_ERR, name, 540 "034|set: [no]%s option doesn't take a value"); 541 rval = 1; 542 break; 543 } 544 if (qmark) { 545 if (!disp) 546 disp = SELECT_DISPLAY; 547 F_SET(spo, OPT_SELECTED); 548 break; 549 } 550 551 /* 552 * Do nothing if the value is unchanged, the underlying 553 * functions can be expensive. 554 */ 555 if (!F_ISSET(op, OPT_ALWAYS)) 556 if (turnoff) { 557 if (!O_ISSET(sp, offset)) 558 break; 559 } else { 560 if (O_ISSET(sp, offset)) 561 break; 562 } 563 564 /* Report to subsystems. */ 565 if (op->func != NULL && 566 op->func(sp, spo, NULL, &turnoff) || 567 ex_optchange(sp, offset, NULL, &turnoff) || 568 v_optchange(sp, offset, NULL, &turnoff) || 569 sp->gp->scr_optchange(sp, offset, NULL, &turnoff)) { 570 rval = 1; 571 break; 572 } 573 574 /* Set the value. */ 575 if (turnoff) 576 O_CLR(sp, offset); 577 else 578 O_SET(sp, offset); 579 break; 580 case OPT_NUM: 581 if (turnoff) { 582 msgq_str(sp, M_ERR, name, 583 "035|set: %s option isn't a boolean"); 584 rval = 1; 585 break; 586 } 587 if (qmark || !equals) { 588 if (!disp) 589 disp = SELECT_DISPLAY; 590 F_SET(spo, OPT_SELECTED); 591 break; 592 } 593 594 if (!isdigit(sep[0])) 595 goto badnum; 596 if ((nret = 597 nget_uslong(&value, sep, &endp, 10)) != NUM_OK) { 598 p = msg_print(sp, name, &nf); 599 t = msg_print(sp, sep, &nf2); 600 switch (nret) { 601 case NUM_ERR: 602 msgq(sp, M_SYSERR, 603 "036|set: %s option: %s", p, t); 604 break; 605 case NUM_OVER: 606 msgq(sp, M_ERR, 607 "037|set: %s option: %s: value overflow", p, t); 608 break; 609 case NUM_OK: 610 case NUM_UNDER: 611 abort(); 612 } 613 if (nf) 614 FREE_SPACE(sp, p, 0); 615 if (nf2) 616 FREE_SPACE(sp, t, 0); 617 rval = 1; 618 break; 619 } 620 if (*endp && !isblank(*endp)) { 621 badnum: p = msg_print(sp, name, &nf); 622 t = msg_print(sp, sep, &nf2); 623 msgq(sp, M_ERR, 624 "038|set: %s option: %s is an illegal number", p, t); 625 if (nf) 626 FREE_SPACE(sp, p, 0); 627 if (nf2) 628 FREE_SPACE(sp, t, 0); 629 rval = 1; 630 break; 631 } 632 633 /* Some options may never be set to zero. */ 634 if (F_ISSET(op, OPT_NOZERO) && value == 0) { 635 msgq_str(sp, M_ERR, name, 636 "314|set: the %s option may never be set to 0"); 637 rval = 1; 638 break; 639 } 640 641 /* 642 * Do nothing if the value is unchanged, the underlying 643 * functions can be expensive. 644 */ 645 if (!F_ISSET(op, OPT_ALWAYS) && 646 O_VAL(sp, offset) == value) 647 break; 648 649 /* Report to subsystems. */ 650 if (op->func != NULL && 651 op->func(sp, spo, sep, &value) || 652 ex_optchange(sp, offset, sep, &value) || 653 v_optchange(sp, offset, sep, &value) || 654 sp->gp->scr_optchange(sp, offset, sep, &value)) { 655 rval = 1; 656 break; 657 } 658 659 /* Set the value. */ 660 if (o_set(sp, offset, 0, NULL, value)) 661 rval = 1; 662 break; 663 case OPT_STR: 664 if (turnoff) { 665 msgq_str(sp, M_ERR, name, 666 "039|set: %s option isn't a boolean"); 667 rval = 1; 668 break; 669 } 670 if (qmark || !equals) { 671 if (!disp) 672 disp = SELECT_DISPLAY; 673 F_SET(spo, OPT_SELECTED); 674 break; 675 } 676 677 /* 678 * Do nothing if the value is unchanged, the underlying 679 * functions can be expensive. 680 */ 681 if (!F_ISSET(op, OPT_ALWAYS) && 682 O_STR(sp, offset) != NULL && 683 !strcmp(O_STR(sp, offset), sep)) 684 break; 685 686 /* Report to subsystems. */ 687 if (op->func != NULL && 688 op->func(sp, spo, sep, NULL) || 689 ex_optchange(sp, offset, sep, NULL) || 690 v_optchange(sp, offset, sep, NULL) || 691 sp->gp->scr_optchange(sp, offset, sep, NULL)) { 692 rval = 1; 693 break; 694 } 695 696 /* Set the value. */ 697 if (o_set(sp, offset, OS_STRDUP, sep, 0)) 698 rval = 1; 699 break; 700 default: 701 abort(); 702 } 703 } 704 if (disp != NO_DISPLAY) 705 opts_dump(sp, disp); 706 return (rval); 707 } 708 709 /* 710 * o_set -- 711 * Set an option's value. 712 * 713 * PUBLIC: int o_set __P((SCR *, int, u_int, char *, u_long)); 714 */ 715 int 716 o_set(sp, opt, flags, str, val) 717 SCR *sp; 718 int opt; 719 u_int flags; 720 char *str; 721 u_long val; 722 { 723 OPTION *op; 724 725 /* Set a pointer to the options area. */ 726 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ? 727 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt]; 728 729 /* Copy the string, if requested. */ 730 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) { 731 msgq(sp, M_SYSERR, NULL); 732 return (1); 733 } 734 735 /* Free the previous string, if requested, and set the value. */ 736 if LF_ISSET(OS_DEF) 737 if (LF_ISSET(OS_STR | OS_STRDUP)) { 738 if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL) 739 free(op->o_def.str); 740 op->o_def.str = str; 741 } else 742 op->o_def.val = val; 743 else 744 if (LF_ISSET(OS_STR | OS_STRDUP)) { 745 if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL) 746 free(op->o_cur.str); 747 op->o_cur.str = str; 748 } else 749 op->o_cur.val = val; 750 return (0); 751 } 752 753 /* 754 * opts_empty -- 755 * Return 1 if the string option is invalid, 0 if it's OK. 756 * 757 * PUBLIC: int opts_empty __P((SCR *, int, int)); 758 */ 759 int 760 opts_empty(sp, off, silent) 761 SCR *sp; 762 int off, silent; 763 { 764 char *p; 765 766 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') { 767 if (!silent) 768 msgq_str(sp, M_ERR, optlist[off].name, 769 "305|No %s edit option specified"); 770 return (1); 771 } 772 return (0); 773 } 774 775 /* 776 * opts_dump -- 777 * List the current values of selected options. 778 * 779 * PUBLIC: void opts_dump __P((SCR *, enum optdisp)); 780 */ 781 void 782 opts_dump(sp, type) 783 SCR *sp; 784 enum optdisp type; 785 { 786 OPTLIST const *op; 787 int base, b_num, cnt, col, colwidth, curlen, s_num; 788 int numcols, numrows, row; 789 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT]; 790 char nbuf[20]; 791 792 /* 793 * Options are output in two groups -- those that fit in a column and 794 * those that don't. Output is done on 6 character "tab" boundaries 795 * for no particular reason. (Since we don't output tab characters, 796 * we can ignore the terminal's tab settings.) Ignore the user's tab 797 * setting because we have no idea how reasonable it is. 798 * 799 * Find a column width we can live with, testing from 10 columns to 1. 800 */ 801 for (numcols = 10; numcols > 1; --numcols) { 802 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1); 803 if (colwidth >= 10) { 804 colwidth = 805 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1); 806 numcols = sp->cols / colwidth; 807 break; 808 } 809 colwidth = 0; 810 } 811 812 /* 813 * Get the set of options to list, entering them into 814 * the column list or the overflow list. 815 */ 816 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) { 817 cnt = op - optlist; 818 819 /* If OPT_NDISP set, it's never displayed. */ 820 if (F_ISSET(op, OPT_NDISP)) 821 continue; 822 823 switch (type) { 824 case ALL_DISPLAY: /* Display all. */ 825 break; 826 case CHANGED_DISPLAY: /* Display changed. */ 827 /* If OPT_ADISP set, it's always "changed". */ 828 if (F_ISSET(op, OPT_ADISP)) 829 break; 830 switch (op->type) { 831 case OPT_0BOOL: 832 case OPT_1BOOL: 833 case OPT_NUM: 834 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt)) 835 continue; 836 break; 837 case OPT_STR: 838 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) || 839 O_D_STR(sp, cnt) != NULL && 840 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt))) 841 continue; 842 break; 843 } 844 break; 845 case SELECT_DISPLAY: /* Display selected. */ 846 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED)) 847 continue; 848 break; 849 default: 850 case NO_DISPLAY: 851 abort(); 852 } 853 F_CLR(&sp->opts[cnt], OPT_SELECTED); 854 855 curlen = strlen(op->name); 856 switch (op->type) { 857 case OPT_0BOOL: 858 case OPT_1BOOL: 859 if (!O_ISSET(sp, cnt)) 860 curlen += 2; 861 break; 862 case OPT_NUM: 863 (void)snprintf(nbuf, 864 sizeof(nbuf), "%ld", O_VAL(sp, cnt)); 865 curlen += strlen(nbuf); 866 break; 867 case OPT_STR: 868 if (O_STR(sp, cnt) != NULL) 869 curlen += strlen(O_STR(sp, cnt)); 870 curlen += 3; 871 break; 872 } 873 /* Offset by 2 so there's a gap. */ 874 if (curlen <= colwidth - 2) 875 s_op[s_num++] = cnt; 876 else 877 b_op[b_num++] = cnt; 878 } 879 880 if (s_num > 0) { 881 /* Figure out the number of rows. */ 882 if (s_num > numcols) { 883 numrows = s_num / numcols; 884 if (s_num % numcols) 885 ++numrows; 886 } else 887 numrows = 1; 888 889 /* Display the options in sorted order. */ 890 for (row = 0; row < numrows;) { 891 for (base = row, col = 0; col < numcols; ++col) { 892 cnt = opts_print(sp, &optlist[s_op[base]]); 893 if ((base += numrows) >= s_num) 894 break; 895 (void)ex_printf(sp, "%*s", 896 (int)(colwidth - cnt), ""); 897 } 898 if (++row < numrows || b_num) 899 (void)ex_puts(sp, "\n"); 900 } 901 } 902 903 for (row = 0; row < b_num;) { 904 (void)opts_print(sp, &optlist[b_op[row]]); 905 if (++row < b_num) 906 (void)ex_puts(sp, "\n"); 907 } 908 (void)ex_puts(sp, "\n"); 909 } 910 911 /* 912 * opts_print -- 913 * Print out an option. 914 */ 915 static int 916 opts_print(sp, op) 917 SCR *sp; 918 OPTLIST const *op; 919 { 920 int curlen, offset; 921 922 curlen = 0; 923 offset = op - optlist; 924 switch (op->type) { 925 case OPT_0BOOL: 926 case OPT_1BOOL: 927 curlen += ex_printf(sp, 928 "%s%s", O_ISSET(sp, offset) ? "" : "no", op->name); 929 break; 930 case OPT_NUM: 931 curlen += ex_printf(sp, "%s=%ld", op->name, O_VAL(sp, offset)); 932 break; 933 case OPT_STR: 934 curlen += ex_printf(sp, "%s=\"%s\"", op->name, 935 O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset)); 936 break; 937 } 938 return (curlen); 939 } 940 941 /* 942 * opts_save -- 943 * Write the current configuration to a file. 944 * 945 * PUBLIC: int opts_save __P((SCR *, FILE *)); 946 */ 947 int 948 opts_save(sp, fp) 949 SCR *sp; 950 FILE *fp; 951 { 952 OPTLIST const *op; 953 int ch, cnt; 954 char *p; 955 956 for (op = optlist; op->name != NULL; ++op) { 957 if (F_ISSET(op, OPT_NOSAVE)) 958 continue; 959 cnt = op - optlist; 960 switch (op->type) { 961 case OPT_0BOOL: 962 case OPT_1BOOL: 963 if (O_ISSET(sp, cnt)) 964 (void)fprintf(fp, "set %s\n", op->name); 965 else 966 (void)fprintf(fp, "set no%s\n", op->name); 967 break; 968 case OPT_NUM: 969 (void)fprintf(fp, 970 "set %s=%-3ld\n", op->name, O_VAL(sp, cnt)); 971 break; 972 case OPT_STR: 973 if (O_STR(sp, cnt) == NULL) 974 break; 975 (void)fprintf(fp, "set "); 976 for (p = op->name; (ch = *p) != '\0'; ++p) { 977 if (isblank(ch) || ch == '\\') 978 (void)putc('\\', fp); 979 (void)putc(ch, fp); 980 } 981 (void)putc('=', fp); 982 for (p = O_STR(sp, cnt); (ch = *p) != '\0'; ++p) { 983 if (isblank(ch) || ch == '\\') 984 (void)putc('\\', fp); 985 (void)putc(ch, fp); 986 } 987 (void)putc('\n', fp); 988 break; 989 } 990 if (ferror(fp)) { 991 msgq(sp, M_SYSERR, NULL); 992 return (1); 993 } 994 } 995 return (0); 996 } 997 998 /* 999 * opts_search -- 1000 * Search for an option. 1001 * 1002 * PUBLIC: OPTLIST const *opts_search __P((char *)); 1003 */ 1004 OPTLIST const * 1005 opts_search(name) 1006 char *name; 1007 { 1008 OPTLIST const *op, *found; 1009 OABBREV atmp, *ap; 1010 OPTLIST otmp; 1011 size_t len; 1012 1013 /* Check list of abbreviations. */ 1014 atmp.name = name; 1015 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1, 1016 sizeof(OABBREV), opts_abbcmp)) != NULL) 1017 return (optlist + ap->offset); 1018 1019 /* Check list of options. */ 1020 otmp.name = name; 1021 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1, 1022 sizeof(OPTLIST), opts_cmp)) != NULL) 1023 return (op); 1024 1025 /* 1026 * Check to see if the name is the prefix of one (and only one) 1027 * option. If so, return the option. 1028 */ 1029 len = strlen(name); 1030 for (found = NULL, op = optlist; op->name != NULL; ++op) { 1031 if (op->name[0] < name[0]) 1032 continue; 1033 if (op->name[0] > name[0]) 1034 break; 1035 if (!memcmp(op->name, name, len)) { 1036 if (found != NULL) 1037 return (NULL); 1038 found = op; 1039 } 1040 } 1041 return (found); 1042 } 1043 1044 /* 1045 * opts_nomatch -- 1046 * Standard nomatch error message for options. 1047 * 1048 * PUBLIC: void opts_nomatch __P((SCR *, char *)); 1049 */ 1050 void 1051 opts_nomatch(sp, name) 1052 SCR *sp; 1053 char *name; 1054 { 1055 msgq_str(sp, M_ERR, name, 1056 "033|set: no %s option: 'set all' gives all option values"); 1057 } 1058 1059 static int 1060 opts_abbcmp(a, b) 1061 const void *a, *b; 1062 { 1063 return(strcmp(((OABBREV *)a)->name, ((OABBREV *)b)->name)); 1064 } 1065 1066 static int 1067 opts_cmp(a, b) 1068 const void *a, *b; 1069 { 1070 return(strcmp(((OPTLIST *)a)->name, ((OPTLIST *)b)->name)); 1071 } 1072 1073 /* 1074 * opts_copy -- 1075 * Copy a screen's OPTION array. 1076 * 1077 * PUBLIC: int opts_copy __P((SCR *, SCR *)); 1078 */ 1079 int 1080 opts_copy(orig, sp) 1081 SCR *orig, *sp; 1082 { 1083 int cnt, rval; 1084 1085 /* Copy most everything without change. */ 1086 memcpy(sp->opts, orig->opts, sizeof(orig->opts)); 1087 1088 /* Copy the string edit options. */ 1089 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) { 1090 if (optlist[cnt].type != OPT_STR || 1091 F_ISSET(&optlist[cnt], OPT_GLOBAL)) 1092 continue; 1093 /* 1094 * If never set, or already failed, NULL out the entries -- 1095 * have to continue after failure, otherwise would have two 1096 * screens referencing the same memory. 1097 */ 1098 if (rval || O_STR(sp, cnt) == NULL) { 1099 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0); 1100 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); 1101 continue; 1102 } 1103 1104 /* Copy the current string. */ 1105 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) { 1106 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); 1107 goto nomem; 1108 } 1109 1110 /* Copy the default string. */ 1111 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt, 1112 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) { 1113 nomem: msgq(orig, M_SYSERR, NULL); 1114 rval = 1; 1115 } 1116 } 1117 return (rval); 1118 } 1119 1120 /* 1121 * opts_free -- 1122 * Free all option strings 1123 * 1124 * PUBLIC: void opts_free __P((SCR *)); 1125 */ 1126 void 1127 opts_free(sp) 1128 SCR *sp; 1129 { 1130 int cnt; 1131 1132 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) { 1133 if (optlist[cnt].type != OPT_STR || 1134 F_ISSET(&optlist[cnt], OPT_GLOBAL)) 1135 continue; 1136 if (O_STR(sp, cnt) != NULL) 1137 free(O_STR(sp, cnt)); 1138 if (O_D_STR(sp, cnt) != NULL) 1139 free(O_D_STR(sp, cnt)); 1140 } 1141 } 1142