1 /* $OpenBSD: options.c,v 1.13 2006/03/11 07:04:53 ray 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 #ifndef lint 15 static const char sccsid[] = "@(#)options.c 10.51 (Berkeley) 10/14/96"; 16 #endif /* not lint */ 17 18 #include <sys/types.h> 19 #include <sys/queue.h> 20 #include <sys/stat.h> 21 #include <sys/time.h> 22 23 #include <bitstring.h> 24 #include <ctype.h> 25 #include <errno.h> 26 #include <limits.h> 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <unistd.h> 31 32 #include "common.h" 33 #include "../vi/vi.h" 34 #include "pathnames.h" 35 36 static int opts_abbcmp(const void *, const void *); 37 static int opts_cmp(const void *, const void *); 38 static int opts_print(SCR *, OPTLIST const *); 39 40 /* 41 * O'Reilly noted options and abbreviations are from "Learning the VI Editor", 42 * Fifth Edition, May 1992. There's no way of knowing what systems they are 43 * actually from. 44 * 45 * HPUX noted options and abbreviations are from "The Ultimate Guide to the 46 * VI and EX Text Editors", 1990. 47 */ 48 OPTLIST const optlist[] = { 49 /* O_ALTWERASE 4.4BSD */ 50 {"altwerase", f_altwerase, OPT_0BOOL, 0}, 51 /* O_AUTOINDENT 4BSD */ 52 {"autoindent", NULL, OPT_0BOOL, 0}, 53 /* O_AUTOPRINT 4BSD */ 54 {"autoprint", NULL, OPT_1BOOL, 0}, 55 /* O_AUTOWRITE 4BSD */ 56 {"autowrite", NULL, OPT_0BOOL, 0}, 57 /* O_BACKUP 4.4BSD */ 58 {"backup", NULL, OPT_STR, 0}, 59 /* O_BEAUTIFY 4BSD */ 60 {"beautify", NULL, OPT_0BOOL, 0}, 61 /* O_CDPATH 4.4BSD */ 62 {"cdpath", NULL, OPT_STR, 0}, 63 /* O_CEDIT 4.4BSD */ 64 {"cedit", NULL, OPT_STR, 0}, 65 /* O_COLUMNS 4.4BSD */ 66 {"columns", f_columns, OPT_NUM, OPT_NOSAVE}, 67 /* O_COMMENT 4.4BSD */ 68 {"comment", NULL, OPT_0BOOL, 0}, 69 /* O_DIRECTORY 4BSD */ 70 {"directory", NULL, OPT_STR, 0}, 71 /* O_EDCOMPATIBLE 4BSD */ 72 {"edcompatible",NULL, OPT_0BOOL, 0}, 73 /* O_ESCAPETIME 4.4BSD */ 74 {"escapetime", NULL, OPT_NUM, 0}, 75 /* O_ERRORBELLS 4BSD */ 76 {"errorbells", NULL, OPT_0BOOL, 0}, 77 /* O_EXRC System V (undocumented) */ 78 {"exrc", NULL, OPT_0BOOL, 0}, 79 /* O_EXTENDED 4.4BSD */ 80 {"extended", f_recompile, OPT_0BOOL, 0}, 81 /* O_FILEC 4.4BSD */ 82 {"filec", NULL, OPT_STR, 0}, 83 /* O_FLASH HPUX */ 84 {"flash", NULL, OPT_1BOOL, 0}, 85 /* O_HARDTABS 4BSD */ 86 {"hardtabs", NULL, OPT_NUM, 0}, 87 /* O_ICLOWER 4.4BSD */ 88 {"iclower", f_recompile, OPT_0BOOL, 0}, 89 /* O_IGNORECASE 4BSD */ 90 {"ignorecase", f_recompile, OPT_0BOOL, 0}, 91 /* O_KEYTIME 4.4BSD */ 92 {"keytime", NULL, OPT_NUM, 0}, 93 /* O_LEFTRIGHT 4.4BSD */ 94 {"leftright", f_reformat, OPT_0BOOL, 0}, 95 /* O_LINES 4.4BSD */ 96 {"lines", f_lines, OPT_NUM, OPT_NOSAVE}, 97 /* O_LISP 4BSD 98 * XXX 99 * When the lisp option is implemented, delete the OPT_NOSAVE flag, 100 * so that :mkexrc dumps it. 101 */ 102 {"lisp", f_lisp, OPT_0BOOL, OPT_NOSAVE}, 103 /* O_LIST 4BSD */ 104 {"list", f_reformat, OPT_0BOOL, 0}, 105 /* O_LOCKFILES 4.4BSD 106 * XXX 107 * Locking isn't reliable enough over NFS to require it, in addition, 108 * it's a serious startup performance problem over some remote links. 109 */ 110 {"lock", NULL, OPT_1BOOL, 0}, 111 /* O_MAGIC 4BSD */ 112 {"magic", NULL, OPT_1BOOL, 0}, 113 /* O_MATCHTIME 4.4BSD */ 114 {"matchtime", NULL, OPT_NUM, 0}, 115 /* O_MESG 4BSD */ 116 {"mesg", NULL, OPT_1BOOL, 0}, 117 /* O_MODELINE 4BSD 118 * !!! 119 * This has been documented in historical systems as both "modeline" 120 * and as "modelines". Regardless of the name, this option represents 121 * a security problem of mammoth proportions, not to mention a stunning 122 * example of what your intro CS professor referred to as the perils of 123 * mixing code and data. Don't add it, or I will kill you. 124 */ 125 {"modeline", NULL, OPT_0BOOL, OPT_NOSET}, 126 /* O_MSGCAT 4.4BSD */ 127 {"msgcat", f_msgcat, OPT_STR, 0}, 128 /* O_NOPRINT 4.4BSD */ 129 {"noprint", f_print, OPT_STR, OPT_EARLYSET}, 130 /* O_NUMBER 4BSD */ 131 {"number", f_reformat, OPT_0BOOL, 0}, 132 /* O_OCTAL 4.4BSD */ 133 {"octal", f_print, OPT_0BOOL, OPT_EARLYSET}, 134 /* O_OPEN 4BSD */ 135 {"open", NULL, OPT_1BOOL, 0}, 136 /* O_OPTIMIZE 4BSD */ 137 {"optimize", NULL, OPT_1BOOL, 0}, 138 /* O_PARAGRAPHS 4BSD */ 139 {"paragraphs", f_paragraph, OPT_STR, 0}, 140 /* O_PATH 4.4BSD */ 141 {"path", NULL, OPT_STR, 0}, 142 /* O_PRINT 4.4BSD */ 143 {"print", f_print, OPT_STR, OPT_EARLYSET}, 144 /* O_PROMPT 4BSD */ 145 {"prompt", NULL, OPT_1BOOL, 0}, 146 /* O_READONLY 4BSD (undocumented) */ 147 {"readonly", f_readonly, OPT_0BOOL, OPT_ALWAYS}, 148 /* O_RECDIR 4.4BSD */ 149 {"recdir", NULL, OPT_STR, 0}, 150 /* O_REDRAW 4BSD */ 151 {"redraw", NULL, OPT_0BOOL, 0}, 152 /* O_REMAP 4BSD */ 153 {"remap", NULL, OPT_1BOOL, 0}, 154 /* O_REPORT 4BSD */ 155 {"report", NULL, OPT_NUM, 0}, 156 /* O_RULER 4.4BSD */ 157 {"ruler", NULL, OPT_0BOOL, 0}, 158 /* O_SCROLL 4BSD */ 159 {"scroll", NULL, OPT_NUM, 0}, 160 /* O_SEARCHINCR 4.4BSD */ 161 {"searchincr", NULL, OPT_0BOOL, 0}, 162 /* O_SECTIONS 4BSD */ 163 {"sections", f_section, OPT_STR, 0}, 164 /* O_SECURE 4.4BSD */ 165 {"secure", NULL, OPT_0BOOL, OPT_NOUNSET}, 166 /* O_SHELL 4BSD */ 167 {"shell", NULL, OPT_STR, 0}, 168 /* O_SHELLMETA 4.4BSD */ 169 {"shellmeta", NULL, OPT_STR, 0}, 170 /* O_SHIFTWIDTH 4BSD */ 171 {"shiftwidth", NULL, OPT_NUM, OPT_NOZERO}, 172 /* O_SHOWMATCH 4BSD */ 173 {"showmatch", NULL, OPT_0BOOL, 0}, 174 /* O_SHOWMODE 4.4BSD */ 175 {"showmode", NULL, OPT_0BOOL, 0}, 176 /* O_SIDESCROLL 4.4BSD */ 177 {"sidescroll", NULL, OPT_NUM, OPT_NOZERO}, 178 /* O_SLOWOPEN 4BSD */ 179 {"slowopen", NULL, OPT_0BOOL, 0}, 180 /* O_SOURCEANY 4BSD (undocumented) 181 * !!! 182 * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they 183 * were owned by the user. The sourceany option was an undocumented 184 * feature of historic vi which permitted the startup source'ing of 185 * .exrc files the user didn't own. This is an obvious security problem, 186 * and we ignore the option. 187 */ 188 {"sourceany", NULL, OPT_0BOOL, OPT_NOSET}, 189 /* O_TABSTOP 4BSD */ 190 {"tabstop", f_reformat, OPT_NUM, OPT_NOZERO}, 191 /* O_TAGLENGTH 4BSD */ 192 {"taglength", NULL, OPT_NUM, 0}, 193 /* O_TAGS 4BSD */ 194 {"tags", NULL, OPT_STR, 0}, 195 /* O_TERM 4BSD 196 * !!! 197 * By default, the historic vi always displayed information about two 198 * options, redraw and term. Term seems sufficient. 199 */ 200 {"term", NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE}, 201 /* O_TERSE 4BSD */ 202 {"terse", NULL, OPT_0BOOL, 0}, 203 /* O_TILDEOP 4.4BSD */ 204 {"tildeop", NULL, OPT_0BOOL, 0}, 205 /* O_TIMEOUT 4BSD (undocumented) */ 206 {"timeout", NULL, OPT_1BOOL, 0}, 207 /* O_TTYWERASE 4.4BSD */ 208 {"ttywerase", f_ttywerase, OPT_0BOOL, 0}, 209 /* O_VERBOSE 4.4BSD */ 210 {"verbose", NULL, OPT_0BOOL, 0}, 211 /* O_W1200 4BSD */ 212 {"w1200", f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 213 /* O_W300 4BSD */ 214 {"w300", f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 215 /* O_W9600 4BSD */ 216 {"w9600", f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, 217 /* O_WARN 4BSD */ 218 {"warn", NULL, OPT_1BOOL, 0}, 219 /* O_WINDOW 4BSD */ 220 {"window", f_window, OPT_NUM, 0}, 221 /* O_WINDOWNAME 4BSD */ 222 {"windowname", NULL, OPT_0BOOL, 0}, 223 /* O_WRAPLEN 4.4BSD */ 224 {"wraplen", NULL, OPT_NUM, 0}, 225 /* O_WRAPMARGIN 4BSD */ 226 {"wrapmargin", NULL, OPT_NUM, 0}, 227 /* O_WRAPSCAN 4BSD */ 228 {"wrapscan", NULL, OPT_1BOOL, 0}, 229 /* O_WRITEANY 4BSD */ 230 {"writeany", NULL, OPT_0BOOL, 0}, 231 {NULL}, 232 }; 233 234 typedef struct abbrev { 235 char *name; 236 int offset; 237 } OABBREV; 238 239 static OABBREV const abbrev[] = { 240 {"ai", O_AUTOINDENT}, /* 4BSD */ 241 {"ap", O_AUTOPRINT}, /* 4BSD */ 242 {"aw", O_AUTOWRITE}, /* 4BSD */ 243 {"bf", O_BEAUTIFY}, /* 4BSD */ 244 {"co", O_COLUMNS}, /* 4.4BSD */ 245 {"dir", O_DIRECTORY}, /* 4BSD */ 246 {"eb", O_ERRORBELLS}, /* 4BSD */ 247 {"ed", O_EDCOMPATIBLE}, /* 4BSD */ 248 {"ex", O_EXRC}, /* System V (undocumented) */ 249 {"ht", O_HARDTABS}, /* 4BSD */ 250 {"ic", O_IGNORECASE}, /* 4BSD */ 251 {"li", O_LINES}, /* 4.4BSD */ 252 {"modelines", O_MODELINE}, /* HPUX */ 253 {"nu", O_NUMBER}, /* 4BSD */ 254 {"opt", O_OPTIMIZE}, /* 4BSD */ 255 {"para", O_PARAGRAPHS}, /* 4BSD */ 256 {"re", O_REDRAW}, /* O'Reilly */ 257 {"ro", O_READONLY}, /* 4BSD (undocumented) */ 258 {"scr", O_SCROLL}, /* 4BSD (undocumented) */ 259 {"sect", O_SECTIONS}, /* O'Reilly */ 260 {"sh", O_SHELL}, /* 4BSD */ 261 {"slow", O_SLOWOPEN}, /* 4BSD */ 262 {"sm", O_SHOWMATCH}, /* 4BSD */ 263 {"smd", O_SHOWMODE}, /* 4BSD */ 264 {"sw", O_SHIFTWIDTH}, /* 4BSD */ 265 {"tag", O_TAGS}, /* 4BSD (undocumented) */ 266 {"tl", O_TAGLENGTH}, /* 4BSD */ 267 {"to", O_TIMEOUT}, /* 4BSD (undocumented) */ 268 {"ts", O_TABSTOP}, /* 4BSD */ 269 {"tty", O_TERM}, /* 4BSD (undocumented) */ 270 {"ttytype", O_TERM}, /* 4BSD (undocumented) */ 271 {"w", O_WINDOW}, /* O'Reilly */ 272 {"wa", O_WRITEANY}, /* 4BSD */ 273 {"wi", O_WINDOW}, /* 4BSD (undocumented) */ 274 {"wl", O_WRAPLEN}, /* 4.4BSD */ 275 {"wm", O_WRAPMARGIN}, /* 4BSD */ 276 {"ws", O_WRAPSCAN}, /* 4BSD */ 277 {NULL}, 278 }; 279 280 /* 281 * opts_init -- 282 * Initialize some of the options. 283 * 284 * PUBLIC: int opts_init(SCR *, int *); 285 */ 286 int 287 opts_init(sp, oargs) 288 SCR *sp; 289 int *oargs; 290 { 291 ARGS *argv[2], a, b; 292 OPTLIST const *op; 293 u_long v; 294 int optindx; 295 char *s, b1[1024]; 296 297 a.bp = b1; 298 b.bp = NULL; 299 a.len = b.len = 0; 300 argv[0] = &a; 301 argv[1] = &b; 302 303 /* Set numeric and string default values. */ 304 #define OI(indx, str) { \ 305 if ((str) != b1) /* GCC puts strings in text-space. */ \ 306 (void)strlcpy(b1, (str), sizeof(b1)); \ 307 a.len = strlen(b1); \ 308 if (opts_set(sp, argv, NULL)) { \ 309 optindx = indx; \ 310 goto err; \ 311 } \ 312 } 313 /* 314 * Indirect global options to global space. Specifically, set up 315 * terminal, lines, columns first, they're used by other options. 316 * Note, don't set the flags until we've set up the indirection. 317 */ 318 if (o_set(sp, O_TERM, 0, NULL, GO_TERM)) { 319 optindx = O_TERM; 320 goto err; 321 } 322 F_SET(&sp->opts[O_TERM], OPT_GLOBAL); 323 if (o_set(sp, O_LINES, 0, NULL, GO_LINES)) { 324 optindx = O_LINES; 325 goto err; 326 } 327 F_SET(&sp->opts[O_LINES], OPT_GLOBAL); 328 if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS)) { 329 optindx = O_COLUMNS; 330 goto err; 331 } 332 F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL); 333 if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE)) { 334 optindx = O_SECURE; 335 goto err; 336 } 337 F_SET(&sp->opts[O_SECURE], OPT_GLOBAL); 338 339 /* Initialize string values. */ 340 (void)snprintf(b1, sizeof(b1), 341 "cdpath=%s", (s = getenv("CDPATH")) == NULL ? ":" : s); 342 OI(O_CDPATH, b1); 343 344 /* 345 * !!! 346 * Vi historically stored temporary files in /var/tmp. We store them 347 * in /tmp by default, hoping it's a memory based file system. There 348 * are two ways to change this -- the user can set either the directory 349 * option or the TMPDIR environmental variable. 350 */ 351 (void)snprintf(b1, sizeof(b1), 352 "directory=%s", (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s); 353 OI(O_DIRECTORY, b1); 354 OI(O_ESCAPETIME, "escapetime=1"); 355 OI(O_KEYTIME, "keytime=6"); 356 OI(O_MATCHTIME, "matchtime=7"); 357 (void)snprintf(b1, sizeof(b1), "msgcat=%s", _PATH_MSGCAT); 358 OI(O_MSGCAT, b1); 359 OI(O_REPORT, "report=5"); 360 OI(O_PARAGRAPHS, "paragraphs=IPLPPPQPP LIpplpipbp"); 361 (void)snprintf(b1, sizeof(b1), "path=%s", ""); 362 OI(O_PATH, b1); 363 (void)snprintf(b1, sizeof(b1), "recdir=%s", _PATH_PRESERVE); 364 OI(O_RECDIR, b1); 365 OI(O_SECTIONS, "sections=NHSHH HUnhsh"); 366 (void)snprintf(b1, sizeof(b1), 367 "shell=%s", (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s); 368 OI(O_SHELL, b1); 369 OI(O_SHELLMETA, "shellmeta=~{[*?$`'\"\\"); 370 OI(O_SHIFTWIDTH, "shiftwidth=8"); 371 OI(O_SIDESCROLL, "sidescroll=16"); 372 OI(O_TABSTOP, "tabstop=8"); 373 (void)snprintf(b1, sizeof(b1), "tags=%s", _PATH_TAGS); 374 OI(O_TAGS, b1); 375 376 /* 377 * XXX 378 * Initialize O_SCROLL here, after term; initializing term should 379 * have created a LINES/COLUMNS value. 380 */ 381 if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0) 382 v = 1; 383 (void)snprintf(b1, sizeof(b1), "scroll=%ld", v); 384 OI(O_SCROLL, b1); 385 386 /* 387 * The default window option values are: 388 * 8 if baud rate <= 600 389 * 16 if baud rate <= 1200 390 * LINES - 1 if baud rate > 1200 391 * 392 * Note, the windows option code will correct any too-large value 393 * or when the O_LINES value is 1. 394 */ 395 if (sp->gp->scr_baud(sp, &v)) 396 return (1); 397 if (v <= 600) 398 v = 8; 399 else if (v <= 1200) 400 v = 16; 401 else 402 v = O_VAL(sp, O_LINES) - 1; 403 (void)snprintf(b1, sizeof(b1), "window=%lu", v); 404 OI(O_WINDOW, b1); 405 406 /* 407 * Set boolean default values, and copy all settings into the default 408 * information. OS_NOFREE is set, we're copying, not replacing. 409 */ 410 for (op = optlist, optindx = 0; op->name != NULL; ++op, ++optindx) 411 switch (op->type) { 412 case OPT_0BOOL: 413 break; 414 case OPT_1BOOL: 415 O_SET(sp, optindx); 416 O_D_SET(sp, optindx); 417 break; 418 case OPT_NUM: 419 o_set(sp, optindx, OS_DEF, NULL, O_VAL(sp, optindx)); 420 break; 421 case OPT_STR: 422 if (O_STR(sp, optindx) != NULL && o_set(sp, optindx, 423 OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, optindx), 0)) 424 goto err; 425 break; 426 default: 427 abort(); 428 } 429 430 /* 431 * !!! 432 * Some options can be initialized by the command name or the 433 * command-line arguments. They don't set the default values, 434 * it's historic practice. 435 */ 436 for (; *oargs != -1; ++oargs) 437 OI(*oargs, optlist[*oargs].name); 438 return (0); 439 #undef OI 440 441 err: msgq(sp, M_ERR, 442 "031|Unable to set default %s option", optlist[optindx].name); 443 return (1); 444 } 445 446 /* 447 * opts_set -- 448 * Change the values of one or more options. 449 * 450 * PUBLIC: int opts_set(SCR *, ARGS *[], char *); 451 */ 452 int 453 opts_set(sp, argv, usage) 454 SCR *sp; 455 ARGS *argv[]; 456 char *usage; 457 { 458 enum optdisp disp; 459 enum nresult nret; 460 OPTLIST const *op; 461 OPTION *spo; 462 u_long value, turnoff; 463 int ch, equals, nf, nf2, offset, qmark, rval; 464 char *endp, *name, *p, *sep, *t; 465 466 disp = NO_DISPLAY; 467 for (rval = 0; argv[0]->len != 0; ++argv) { 468 /* 469 * The historic vi dumped the options for each occurrence of 470 * "all" in the set list. Puhleeze. 471 */ 472 if (!strcmp(argv[0]->bp, "all")) { 473 disp = ALL_DISPLAY; 474 continue; 475 } 476 477 /* Find equals sign or question mark. */ 478 for (sep = NULL, equals = qmark = 0, 479 p = name = argv[0]->bp; (ch = *p) != '\0'; ++p) 480 if (ch == '=' || ch == '?') { 481 if (p == name) { 482 if (usage != NULL) 483 msgq(sp, M_ERR, 484 "032|Usage: %s", usage); 485 return (1); 486 } 487 sep = p; 488 if (ch == '=') 489 equals = 1; 490 else 491 qmark = 1; 492 break; 493 } 494 495 turnoff = 0; 496 op = NULL; 497 if (sep != NULL) 498 *sep++ = '\0'; 499 500 /* Search for the name, then name without any leading "no". */ 501 if ((op = opts_search(name)) == NULL && 502 name[0] == 'n' && name[1] == 'o') { 503 turnoff = 1; 504 name += 2; 505 op = opts_search(name); 506 } 507 if (op == NULL) { 508 opts_nomatch(sp, name); 509 rval = 1; 510 continue; 511 } 512 513 /* Find current option values. */ 514 offset = op - optlist; 515 spo = sp->opts + offset; 516 517 /* 518 * !!! 519 * Historically, the question mark could be a separate 520 * argument. 521 */ 522 if (!equals && !qmark && 523 argv[1]->len == 1 && argv[1]->bp[0] == '?') { 524 ++argv; 525 qmark = 1; 526 } 527 528 /* Set name, value. */ 529 switch (op->type) { 530 case OPT_0BOOL: 531 case OPT_1BOOL: 532 /* Some options may not be reset. */ 533 if (F_ISSET(op, OPT_NOUNSET) && turnoff) { 534 msgq_str(sp, M_ERR, name, 535 "291|set: the %s option may not be turned off"); 536 rval = 1; 537 break; 538 } 539 540 /* Some options may not be set. */ 541 if (F_ISSET(op, OPT_NOSET) && !turnoff) { 542 msgq_str(sp, M_ERR, name, 543 "313|set: the %s option may never be turned on"); 544 rval = 1; 545 break; 546 } 547 548 if (equals) { 549 msgq_str(sp, M_ERR, name, 550 "034|set: [no]%s option doesn't take a value"); 551 rval = 1; 552 break; 553 } 554 if (qmark) { 555 if (!disp) 556 disp = SELECT_DISPLAY; 557 F_SET(spo, OPT_SELECTED); 558 break; 559 } 560 561 /* 562 * Do nothing if the value is unchanged, the underlying 563 * functions can be expensive. 564 */ 565 if (!F_ISSET(op, OPT_ALWAYS)) { 566 if (turnoff) { 567 if (!O_ISSET(sp, offset)) 568 break; 569 } else { 570 if (O_ISSET(sp, offset)) 571 break; 572 } 573 } 574 575 if (F_ISSET(op, OPT_EARLYSET)) { 576 /* Set the value. */ 577 if (turnoff) 578 O_CLR(sp, offset); 579 else 580 O_SET(sp, offset); 581 } 582 583 /* Report to subsystems. */ 584 if ((op->func != NULL && 585 op->func(sp, spo, NULL, &turnoff)) || 586 ex_optchange(sp, offset, NULL, &turnoff) || 587 v_optchange(sp, offset, NULL, &turnoff) || 588 sp->gp->scr_optchange(sp, offset, NULL, &turnoff)) { 589 rval = 1; 590 break; 591 } 592 593 if (!F_ISSET(op, OPT_EARLYSET)) { 594 /* Set the value. */ 595 if (turnoff) 596 O_CLR(sp, offset); 597 else 598 O_SET(sp, offset); 599 } 600 break; 601 case OPT_NUM: 602 if (turnoff) { 603 msgq_str(sp, M_ERR, name, 604 "035|set: %s option isn't a boolean"); 605 rval = 1; 606 break; 607 } 608 if (qmark || !equals) { 609 if (!disp) 610 disp = SELECT_DISPLAY; 611 F_SET(spo, OPT_SELECTED); 612 break; 613 } 614 615 if (!isdigit(sep[0])) 616 goto badnum; 617 if ((nret = 618 nget_uslong(&value, sep, &endp, 10)) != NUM_OK) { 619 p = msg_print(sp, name, &nf); 620 t = msg_print(sp, sep, &nf2); 621 switch (nret) { 622 case NUM_ERR: 623 msgq(sp, M_SYSERR, 624 "036|set: %s option: %s", p, t); 625 break; 626 case NUM_OVER: 627 msgq(sp, M_ERR, 628 "037|set: %s option: %s: value overflow", p, t); 629 break; 630 case NUM_OK: 631 case NUM_UNDER: 632 abort(); 633 } 634 if (nf) 635 FREE_SPACE(sp, p, 0); 636 if (nf2) 637 FREE_SPACE(sp, t, 0); 638 rval = 1; 639 break; 640 } 641 if (*endp && !isblank(*endp)) { 642 badnum: p = msg_print(sp, name, &nf); 643 t = msg_print(sp, sep, &nf2); 644 msgq(sp, M_ERR, 645 "038|set: %s option: %s is an illegal number", p, t); 646 if (nf) 647 FREE_SPACE(sp, p, 0); 648 if (nf2) 649 FREE_SPACE(sp, t, 0); 650 rval = 1; 651 break; 652 } 653 654 /* Some options may never be set to zero. */ 655 if (F_ISSET(op, OPT_NOZERO) && value == 0) { 656 msgq_str(sp, M_ERR, name, 657 "314|set: the %s option may never be set to 0"); 658 rval = 1; 659 break; 660 } 661 662 /* 663 * Do nothing if the value is unchanged, the underlying 664 * functions can be expensive. 665 */ 666 if (!F_ISSET(op, OPT_ALWAYS) && 667 O_VAL(sp, offset) == value) 668 break; 669 670 if (F_ISSET(op, OPT_EARLYSET)) { 671 /* Set the value. */ 672 if (o_set(sp, offset, 0, NULL, value)) { 673 rval = 1; 674 break; 675 } 676 } 677 678 /* Report to subsystems. */ 679 if ((op->func != NULL && 680 op->func(sp, spo, sep, &value)) || 681 ex_optchange(sp, offset, sep, &value) || 682 v_optchange(sp, offset, sep, &value) || 683 sp->gp->scr_optchange(sp, offset, sep, &value)) { 684 rval = 1; 685 break; 686 } 687 688 if (!F_ISSET(op, OPT_EARLYSET)) { 689 /* Set the value. */ 690 if (o_set(sp, offset, 0, NULL, value)) 691 rval = 1; 692 } 693 break; 694 case OPT_STR: 695 if (turnoff) { 696 msgq_str(sp, M_ERR, name, 697 "039|set: %s option isn't a boolean"); 698 rval = 1; 699 break; 700 } 701 if (qmark || !equals) { 702 if (!disp) 703 disp = SELECT_DISPLAY; 704 F_SET(spo, OPT_SELECTED); 705 break; 706 } 707 708 /* 709 * Do nothing if the value is unchanged, the underlying 710 * functions can be expensive. 711 */ 712 if (!F_ISSET(op, OPT_ALWAYS) && 713 O_STR(sp, offset) != NULL && 714 !strcmp(O_STR(sp, offset), sep)) 715 break; 716 717 if (F_ISSET(op, OPT_EARLYSET)) { 718 /* Set the value. */ 719 if (o_set(sp, offset, OS_STRDUP, sep, 0)) { 720 rval = 1; 721 break; 722 } 723 } 724 725 /* Report to subsystems. */ 726 if ((op->func != NULL && 727 op->func(sp, spo, sep, NULL)) || 728 ex_optchange(sp, offset, sep, NULL) || 729 v_optchange(sp, offset, sep, NULL) || 730 sp->gp->scr_optchange(sp, offset, sep, NULL)) { 731 rval = 1; 732 break; 733 } 734 735 if (!F_ISSET(op, OPT_EARLYSET)) { 736 /* Set the value. */ 737 if (o_set(sp, offset, OS_STRDUP, sep, 0)) 738 rval = 1; 739 } 740 break; 741 default: 742 abort(); 743 } 744 } 745 if (disp != NO_DISPLAY) 746 opts_dump(sp, disp); 747 return (rval); 748 } 749 750 /* 751 * o_set -- 752 * Set an option's value. 753 * 754 * PUBLIC: int o_set(SCR *, int, u_int, char *, u_long); 755 */ 756 int 757 o_set(sp, opt, flags, str, val) 758 SCR *sp; 759 int opt; 760 u_int flags; 761 char *str; 762 u_long val; 763 { 764 OPTION *op; 765 766 /* Set a pointer to the options area. */ 767 op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ? 768 &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt]; 769 770 /* Copy the string, if requested. */ 771 if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) { 772 msgq(sp, M_SYSERR, NULL); 773 return (1); 774 } 775 776 /* Free the previous string, if requested, and set the value. */ 777 if (LF_ISSET(OS_DEF)) 778 if (LF_ISSET(OS_STR | OS_STRDUP)) { 779 if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL) 780 free(op->o_def.str); 781 op->o_def.str = str; 782 } else 783 op->o_def.val = val; 784 else 785 if (LF_ISSET(OS_STR | OS_STRDUP)) { 786 if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL) 787 free(op->o_cur.str); 788 op->o_cur.str = str; 789 } else 790 op->o_cur.val = val; 791 return (0); 792 } 793 794 /* 795 * opts_empty -- 796 * Return 1 if the string option is invalid, 0 if it's OK. 797 * 798 * PUBLIC: int opts_empty(SCR *, int, int); 799 */ 800 int 801 opts_empty(sp, off, silent) 802 SCR *sp; 803 int off, silent; 804 { 805 char *p; 806 807 if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') { 808 if (!silent) 809 msgq_str(sp, M_ERR, optlist[off].name, 810 "305|No %s edit option specified"); 811 return (1); 812 } 813 return (0); 814 } 815 816 /* 817 * opts_dump -- 818 * List the current values of selected options. 819 * 820 * PUBLIC: void opts_dump(SCR *, enum optdisp); 821 */ 822 void 823 opts_dump(sp, type) 824 SCR *sp; 825 enum optdisp type; 826 { 827 OPTLIST const *op; 828 int base, b_num, cnt, col, colwidth, curlen, s_num; 829 int numcols, numrows, row; 830 int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT]; 831 char nbuf[20]; 832 833 /* 834 * Options are output in two groups -- those that fit in a column and 835 * those that don't. Output is done on 6 character "tab" boundaries 836 * for no particular reason. (Since we don't output tab characters, 837 * we can ignore the terminal's tab settings.) Ignore the user's tab 838 * setting because we have no idea how reasonable it is. 839 * 840 * Find a column width we can live with, testing from 10 columns to 1. 841 */ 842 for (numcols = 10; numcols > 1; --numcols) { 843 colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1); 844 if (colwidth >= 10) { 845 colwidth = 846 (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1); 847 numcols = sp->cols / colwidth; 848 break; 849 } 850 colwidth = 0; 851 } 852 853 /* 854 * Get the set of options to list, entering them into 855 * the column list or the overflow list. 856 */ 857 for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) { 858 cnt = op - optlist; 859 860 /* If OPT_NDISP set, it's never displayed. */ 861 if (F_ISSET(op, OPT_NDISP)) 862 continue; 863 864 switch (type) { 865 case ALL_DISPLAY: /* Display all. */ 866 break; 867 case CHANGED_DISPLAY: /* Display changed. */ 868 /* If OPT_ADISP set, it's always "changed". */ 869 if (F_ISSET(op, OPT_ADISP)) 870 break; 871 switch (op->type) { 872 case OPT_0BOOL: 873 case OPT_1BOOL: 874 case OPT_NUM: 875 if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt)) 876 continue; 877 break; 878 case OPT_STR: 879 if (O_STR(sp, cnt) == O_D_STR(sp, cnt) || 880 (O_D_STR(sp, cnt) != NULL && 881 !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt)))) 882 continue; 883 break; 884 } 885 break; 886 case SELECT_DISPLAY: /* Display selected. */ 887 if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED)) 888 continue; 889 break; 890 default: 891 case NO_DISPLAY: 892 abort(); 893 } 894 F_CLR(&sp->opts[cnt], OPT_SELECTED); 895 896 curlen = strlen(op->name); 897 switch (op->type) { 898 case OPT_0BOOL: 899 case OPT_1BOOL: 900 if (!O_ISSET(sp, cnt)) 901 curlen += 2; 902 break; 903 case OPT_NUM: 904 (void)snprintf(nbuf, 905 sizeof(nbuf), "%ld", O_VAL(sp, cnt)); 906 curlen += strlen(nbuf); 907 break; 908 case OPT_STR: 909 if (O_STR(sp, cnt) != NULL) 910 curlen += strlen(O_STR(sp, cnt)); 911 curlen += 3; 912 break; 913 } 914 /* Offset by 2 so there's a gap. */ 915 if (curlen <= colwidth - 2) 916 s_op[s_num++] = cnt; 917 else 918 b_op[b_num++] = cnt; 919 } 920 921 if (s_num > 0) { 922 /* Figure out the number of rows. */ 923 if (s_num > numcols) { 924 numrows = s_num / numcols; 925 if (s_num % numcols) 926 ++numrows; 927 } else 928 numrows = 1; 929 930 /* Display the options in sorted order. */ 931 for (row = 0; row < numrows;) { 932 for (base = row, col = 0; col < numcols; ++col) { 933 cnt = opts_print(sp, &optlist[s_op[base]]); 934 if ((base += numrows) >= s_num) 935 break; 936 (void)ex_printf(sp, "%*s", 937 (int)(colwidth - cnt), ""); 938 } 939 if (++row < numrows || b_num) 940 (void)ex_puts(sp, "\n"); 941 } 942 } 943 944 for (row = 0; row < b_num;) { 945 (void)opts_print(sp, &optlist[b_op[row]]); 946 if (++row < b_num) 947 (void)ex_puts(sp, "\n"); 948 } 949 (void)ex_puts(sp, "\n"); 950 } 951 952 /* 953 * opts_print -- 954 * Print out an option. 955 */ 956 static int 957 opts_print(sp, op) 958 SCR *sp; 959 OPTLIST const *op; 960 { 961 int curlen, offset; 962 963 curlen = 0; 964 offset = op - optlist; 965 switch (op->type) { 966 case OPT_0BOOL: 967 case OPT_1BOOL: 968 curlen += ex_printf(sp, 969 "%s%s", O_ISSET(sp, offset) ? "" : "no", op->name); 970 break; 971 case OPT_NUM: 972 curlen += ex_printf(sp, "%s=%ld", op->name, O_VAL(sp, offset)); 973 break; 974 case OPT_STR: 975 curlen += ex_printf(sp, "%s=\"%s\"", op->name, 976 O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset)); 977 break; 978 } 979 return (curlen); 980 } 981 982 /* 983 * opts_save -- 984 * Write the current configuration to a file. 985 * 986 * PUBLIC: int opts_save(SCR *, FILE *); 987 */ 988 int 989 opts_save(sp, fp) 990 SCR *sp; 991 FILE *fp; 992 { 993 OPTLIST const *op; 994 int ch, cnt; 995 char *p; 996 997 for (op = optlist; op->name != NULL; ++op) { 998 if (F_ISSET(op, OPT_NOSAVE)) 999 continue; 1000 cnt = op - optlist; 1001 switch (op->type) { 1002 case OPT_0BOOL: 1003 case OPT_1BOOL: 1004 if (O_ISSET(sp, cnt)) 1005 (void)fprintf(fp, "set %s\n", op->name); 1006 else 1007 (void)fprintf(fp, "set no%s\n", op->name); 1008 break; 1009 case OPT_NUM: 1010 (void)fprintf(fp, 1011 "set %s=%-3ld\n", op->name, O_VAL(sp, cnt)); 1012 break; 1013 case OPT_STR: 1014 if (O_STR(sp, cnt) == NULL) 1015 break; 1016 (void)fprintf(fp, "set "); 1017 for (p = op->name; (ch = *p) != '\0'; ++p) { 1018 if (isblank(ch) || ch == '\\') 1019 (void)putc('\\', fp); 1020 (void)putc(ch, fp); 1021 } 1022 (void)putc('=', fp); 1023 for (p = O_STR(sp, cnt); (ch = *p) != '\0'; ++p) { 1024 if (isblank(ch) || ch == '\\') 1025 (void)putc('\\', fp); 1026 (void)putc(ch, fp); 1027 } 1028 (void)putc('\n', fp); 1029 break; 1030 } 1031 if (ferror(fp)) { 1032 msgq(sp, M_SYSERR, NULL); 1033 return (1); 1034 } 1035 } 1036 return (0); 1037 } 1038 1039 /* 1040 * opts_search -- 1041 * Search for an option. 1042 * 1043 * PUBLIC: OPTLIST const *opts_search(char *); 1044 */ 1045 OPTLIST const * 1046 opts_search(name) 1047 char *name; 1048 { 1049 OPTLIST const *op, *found; 1050 OABBREV atmp, *ap; 1051 OPTLIST otmp; 1052 size_t len; 1053 1054 /* Check list of abbreviations. */ 1055 atmp.name = name; 1056 if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1, 1057 sizeof(OABBREV), opts_abbcmp)) != NULL) 1058 return (optlist + ap->offset); 1059 1060 /* Check list of options. */ 1061 otmp.name = name; 1062 if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1, 1063 sizeof(OPTLIST), opts_cmp)) != NULL) 1064 return (op); 1065 1066 /* 1067 * Check to see if the name is the prefix of one (and only one) 1068 * option. If so, return the option. 1069 */ 1070 len = strlen(name); 1071 for (found = NULL, op = optlist; op->name != NULL; ++op) { 1072 if (op->name[0] < name[0]) 1073 continue; 1074 if (op->name[0] > name[0]) 1075 break; 1076 if (!memcmp(op->name, name, len)) { 1077 if (found != NULL) 1078 return (NULL); 1079 found = op; 1080 } 1081 } 1082 return (found); 1083 } 1084 1085 /* 1086 * opts_nomatch -- 1087 * Standard nomatch error message for options. 1088 * 1089 * PUBLIC: void opts_nomatch(SCR *, char *); 1090 */ 1091 void 1092 opts_nomatch(sp, name) 1093 SCR *sp; 1094 char *name; 1095 { 1096 msgq_str(sp, M_ERR, name, 1097 "033|set: no %s option: 'set all' gives all option values"); 1098 } 1099 1100 static int 1101 opts_abbcmp(a, b) 1102 const void *a, *b; 1103 { 1104 return(strcmp(((OABBREV *)a)->name, ((OABBREV *)b)->name)); 1105 } 1106 1107 static int 1108 opts_cmp(a, b) 1109 const void *a, *b; 1110 { 1111 return(strcmp(((OPTLIST *)a)->name, ((OPTLIST *)b)->name)); 1112 } 1113 1114 /* 1115 * opts_copy -- 1116 * Copy a screen's OPTION array. 1117 * 1118 * PUBLIC: int opts_copy(SCR *, SCR *); 1119 */ 1120 int 1121 opts_copy(orig, sp) 1122 SCR *orig, *sp; 1123 { 1124 int cnt, rval; 1125 1126 /* Copy most everything without change. */ 1127 memcpy(sp->opts, orig->opts, sizeof(orig->opts)); 1128 1129 /* Copy the string edit options. */ 1130 for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) { 1131 if (optlist[cnt].type != OPT_STR || 1132 F_ISSET(&optlist[cnt], OPT_GLOBAL)) 1133 continue; 1134 /* 1135 * If never set, or already failed, NULL out the entries -- 1136 * have to continue after failure, otherwise would have two 1137 * screens referencing the same memory. 1138 */ 1139 if (rval || O_STR(sp, cnt) == NULL) { 1140 o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0); 1141 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); 1142 continue; 1143 } 1144 1145 /* Copy the current string. */ 1146 if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) { 1147 o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); 1148 goto nomem; 1149 } 1150 1151 /* Copy the default string. */ 1152 if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt, 1153 OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) { 1154 nomem: msgq(orig, M_SYSERR, NULL); 1155 rval = 1; 1156 } 1157 } 1158 return (rval); 1159 } 1160 1161 /* 1162 * opts_free -- 1163 * Free all option strings 1164 * 1165 * PUBLIC: void opts_free(SCR *); 1166 */ 1167 void 1168 opts_free(sp) 1169 SCR *sp; 1170 { 1171 int cnt; 1172 1173 for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) { 1174 if (optlist[cnt].type != OPT_STR || 1175 F_ISSET(&optlist[cnt], OPT_GLOBAL)) 1176 continue; 1177 if (O_STR(sp, cnt) != NULL) 1178 free(O_STR(sp, cnt)); 1179 if (O_D_STR(sp, cnt) != NULL) 1180 free(O_D_STR(sp, cnt)); 1181 } 1182 } 1183