1 /* $NetBSD: man.c,v 1.10 1997/11/23 23:24:14 tv Exp $ */ 2 3 /* 4 * Copyright (c) 1987, 1993, 1994, 1995 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 38 #ifndef lint 39 __COPYRIGHT("@(#) Copyright (c) 1987, 1993, 1994, 1995\n\ 40 The Regents of the University of California. All rights reserved.\n"); 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)man.c 8.17 (Berkeley) 1/31/95"; 46 #else 47 __RCSID("$NetBSD: man.c,v 1.10 1997/11/23 23:24:14 tv Exp $"); 48 #endif 49 #endif /* not lint */ 50 51 #include <sys/param.h> 52 #include <sys/queue.h> 53 54 #include <ctype.h> 55 #include <err.h> 56 #include <errno.h> 57 #include <fcntl.h> 58 #include <fnmatch.h> 59 #include <glob.h> 60 #include <signal.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <unistd.h> 65 66 #include "config.h" 67 #include "pathnames.h" 68 69 int f_all, f_where; 70 71 int main __P((int, char **)); 72 static void build_page __P((char *, char **)); 73 static void cat __P((char *)); 74 static char *check_pager __P((char *)); 75 static int cleanup __P((void)); 76 static void how __P((char *)); 77 static void jump __P((char **, char *, char *)); 78 static int manual __P((char *, TAG *, glob_t *)); 79 static void onsig __P((int)); 80 static void usage __P((void)); 81 82 int 83 main(argc, argv) 84 int argc; 85 char *argv[]; 86 { 87 TAG *defp, *defnewp, *section, *sectnewp, *subp; 88 ENTRY *e_defp, *e_sectp, *e_subp, *ep; 89 glob_t pg; 90 size_t len; 91 int ch, f_cat, f_how, found; 92 char **ap, *cmd, *machine, *p, *p_add, *p_path, *pager, *slashp; 93 char *conffile, buf[MAXPATHLEN * 2]; 94 95 #ifdef __GNUC__ 96 pager = NULL; /* XXX gcc -Wuninitialized */ 97 #endif 98 99 f_cat = f_how = 0; 100 conffile = p_add = p_path = NULL; 101 while ((ch = getopt(argc, argv, "-aC:cfhkM:m:P:w")) != -1) 102 switch (ch) { 103 case 'a': 104 f_all = 1; 105 break; 106 case 'C': 107 conffile = optarg; 108 break; 109 case 'c': 110 case '-': /* Deprecated. */ 111 f_cat = 1; 112 break; 113 case 'h': 114 f_how = 1; 115 break; 116 case 'm': 117 p_add = optarg; 118 break; 119 case 'M': 120 case 'P': /* Backward compatibility. */ 121 p_path = optarg; 122 break; 123 /* 124 * The -f and -k options are backward compatible, 125 * undocumented ways of calling whatis(1) and apropos(1). 126 */ 127 case 'f': 128 jump(argv, "-f", "whatis"); 129 /* NOTREACHED */ 130 case 'k': 131 jump(argv, "-k", "apropos"); 132 /* NOTREACHED */ 133 case 'w': 134 f_all = f_where = 1; 135 break; 136 case '?': 137 default: 138 usage(); 139 } 140 argc -= optind; 141 argv += optind; 142 143 if (!*argv) 144 usage(); 145 146 if (!f_cat && !f_how && !f_where) 147 if (!isatty(1)) 148 f_cat = 1; 149 else if ((pager = getenv("PAGER")) != NULL) 150 pager = check_pager(pager); 151 else 152 pager = _PATH_PAGER; 153 154 /* Read the configuration file. */ 155 config(conffile); 156 157 /* Get the machine type. */ 158 if ((machine = getenv("MACHINE")) == NULL) 159 machine = MACHINE; 160 161 /* If there's no _default list, create an empty one. */ 162 if ((defp = getlist("_default")) == NULL) 163 defp = addlist("_default"); 164 165 /* 166 * 1: If the user specified a MANPATH variable, or set the -M 167 * option, we replace the _default list with the user's list, 168 * appending the entries in the _subdir list and the machine. 169 */ 170 if (p_path == NULL) 171 p_path = getenv("MANPATH"); 172 if (p_path != NULL) { 173 while ((e_defp = defp->list.tqh_first) != NULL) { 174 free(e_defp->s); 175 TAILQ_REMOVE(&defp->list, e_defp, q); 176 } 177 for (p = strtok(p_path, ":"); 178 p != NULL; p = strtok(NULL, ":")) { 179 slashp = p[strlen(p) - 1] == '/' ? "" : "/"; 180 e_subp = (subp = getlist("_subdir")) == NULL ? 181 NULL : subp->list.tqh_first; 182 for (; e_subp != NULL; e_subp = e_subp->q.tqe_next) { 183 (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}", 184 p, slashp, e_subp->s, machine); 185 if ((ep = malloc(sizeof(ENTRY))) == NULL || 186 (ep->s = strdup(buf)) == NULL) 187 err(1, "malloc"); 188 TAILQ_INSERT_TAIL(&defp->list, ep, q); 189 } 190 } 191 } 192 193 /* 194 * 2: If the user did not specify MANPATH, -M or a section, rewrite 195 * the _default list to include the _subdir list and the machine. 196 */ 197 if (argv[1] == NULL) 198 section = NULL; 199 else if ((section = getlist(*argv)) != NULL) 200 ++argv; 201 if (p_path == NULL && section == NULL) { 202 defnewp = addlist("_default_new"); 203 e_defp = 204 defp->list.tqh_first == NULL ? NULL : defp->list.tqh_first; 205 for (; e_defp != NULL; e_defp = e_defp->q.tqe_next) { 206 slashp = 207 e_defp->s[strlen(e_defp->s) - 1] == '/' ? "" : "/"; 208 e_subp = (subp = getlist("_subdir")) == NULL ? 209 NULL : subp->list.tqh_first; 210 for (; e_subp != NULL; e_subp = e_subp->q.tqe_next) { 211 (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}", 212 e_defp->s, slashp, e_subp->s, machine); 213 if ((ep = malloc(sizeof(ENTRY))) == NULL || 214 (ep->s = strdup(buf)) == NULL) 215 err(1, "malloc"); 216 TAILQ_INSERT_TAIL(&defnewp->list, ep, q); 217 } 218 } 219 defp = getlist("_default"); 220 while ((e_defp = defp->list.tqh_first) != NULL) { 221 free(e_defp->s); 222 TAILQ_REMOVE(&defp->list, e_defp, q); 223 } 224 free(defp->s); 225 TAILQ_REMOVE(&head, defp, q); 226 defnewp = getlist("_default_new"); 227 free(defnewp->s); 228 defnewp->s = "_default"; 229 defp = defnewp; 230 } 231 232 /* 233 * 3: If the user set the -m option, insert the user's list before 234 * whatever list we have, again appending the _subdir list and 235 * the machine. 236 */ 237 if (p_add != NULL) 238 for (p = strtok(p_add, ":"); p != NULL; p = strtok(NULL, ":")) { 239 slashp = p[strlen(p) - 1] == '/' ? "" : "/"; 240 e_subp = (subp = getlist("_subdir")) == NULL ? 241 NULL : subp->list.tqh_first; 242 for (; e_subp != NULL; e_subp = e_subp->q.tqe_next) { 243 (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}", 244 p, slashp, e_subp->s, machine); 245 if ((ep = malloc(sizeof(ENTRY))) == NULL || 246 (ep->s = strdup(buf)) == NULL) 247 err(1, "malloc"); 248 TAILQ_INSERT_HEAD(&defp->list, ep, q); 249 } 250 } 251 252 /* 253 * 4: If no -m was specified, and a section was, rewrite the section's 254 * paths (if they have a trailing slash) to append the _subdir list 255 * and the machine. This then becomes the _default list. 256 */ 257 if (p_add == NULL && section != NULL) { 258 sectnewp = addlist("_section_new"); 259 for (e_sectp = section->list.tqh_first; 260 e_sectp != NULL; e_sectp = e_sectp->q.tqe_next) { 261 if (e_sectp->s[strlen(e_sectp->s) - 1] != '/') { 262 (void)snprintf(buf, sizeof(buf), 263 "%s{/%s,}", e_sectp->s, machine); 264 if ((ep = malloc(sizeof(ENTRY))) == NULL || 265 (ep->s = strdup(buf)) == NULL) 266 err(1, "malloc"); 267 TAILQ_INSERT_TAIL(§newp->list, ep, q); 268 continue; 269 } 270 e_subp = (subp = getlist("_subdir")) == NULL ? 271 NULL : subp->list.tqh_first; 272 for (; e_subp != NULL; e_subp = e_subp->q.tqe_next) { 273 (void)snprintf(buf, sizeof(buf), "%s%s{/%s,}", 274 e_sectp->s, e_subp->s, machine); 275 if ((ep = malloc(sizeof(ENTRY))) == NULL || 276 (ep->s = strdup(buf)) == NULL) 277 err(1, "malloc"); 278 TAILQ_INSERT_TAIL(§newp->list, ep, q); 279 } 280 } 281 sectnewp->s = section->s; 282 defp = sectnewp; 283 TAILQ_REMOVE(&head, section, q); 284 } 285 286 /* 287 * 5: Search for the files. Set up an interrupt handler, so the 288 * temporary files go away. 289 */ 290 (void)signal(SIGINT, onsig); 291 (void)signal(SIGHUP, onsig); 292 293 memset(&pg, 0, sizeof(pg)); 294 for (found = 0; *argv; ++argv) 295 if (manual(*argv, defp, &pg)) 296 found = 1; 297 298 /* 6: If nothing found, we're done. */ 299 if (!found) { 300 (void)cleanup(); 301 exit (1); 302 } 303 304 /* 7: If it's simple, display it fast. */ 305 if (f_cat) { 306 for (ap = pg.gl_pathv; *ap != NULL; ++ap) { 307 if (**ap == '\0') 308 continue; 309 cat(*ap); 310 } 311 exit (cleanup()); 312 } 313 if (f_how) { 314 for (ap = pg.gl_pathv; *ap != NULL; ++ap) { 315 if (**ap == '\0') 316 continue; 317 how(*ap); 318 } 319 exit(cleanup()); 320 } 321 if (f_where) { 322 for (ap = pg.gl_pathv; *ap != NULL; ++ap) { 323 if (**ap == '\0') 324 continue; 325 (void)printf("%s\n", *ap); 326 } 327 exit(cleanup()); 328 } 329 330 /* 331 * 8: We display things in a single command; build a list of things 332 * to display. 333 */ 334 for (ap = pg.gl_pathv, len = strlen(pager) + 1; *ap != NULL; ++ap) { 335 if (**ap == '\0') 336 continue; 337 len += strlen(*ap) + 1; 338 } 339 if ((cmd = malloc(len)) == NULL) { 340 warn("malloc"); 341 (void)cleanup(); 342 exit(1); 343 } 344 p = cmd; 345 len = strlen(pager); 346 memmove(p, pager, len); 347 p += len; 348 *p++ = ' '; 349 for (ap = pg.gl_pathv; *ap != NULL; ++ap) { 350 if (**ap == '\0') 351 continue; 352 len = strlen(*ap); 353 memmove(p, *ap, len); 354 p += len; 355 *p++ = ' '; 356 } 357 *p = '\0'; 358 359 /* Use system(3) in case someone's pager is "pager arg1 arg2". */ 360 (void)system(cmd); 361 362 exit(cleanup()); 363 } 364 365 /* 366 * manual -- 367 * Search the manuals for the pages. 368 */ 369 static int 370 manual(page, tag, pg) 371 char *page; 372 TAG *tag; 373 glob_t *pg; 374 { 375 ENTRY *ep, *e_sufp, *e_tag; 376 TAG *missp, *sufp; 377 int anyfound, cnt, found; 378 char *p, buf[MAXPATHLEN]; 379 380 anyfound = 0; 381 buf[0] = '*'; 382 383 /* For each element in the list... */ 384 e_tag = tag == NULL ? NULL : tag->list.tqh_first; 385 for (; e_tag != NULL; e_tag = e_tag->q.tqe_next) { 386 (void)snprintf(buf, sizeof(buf), "%s/%s.*", e_tag->s, page); 387 if (glob(buf, 388 GLOB_APPEND | GLOB_BRACE | GLOB_NOSORT | GLOB_QUOTE, 389 NULL, pg)) { 390 warn("globbing"); 391 (void)cleanup(); 392 exit(1); 393 } 394 if (pg->gl_matchc == 0) 395 continue; 396 397 /* Find out if it's really a man page. */ 398 for (cnt = pg->gl_pathc - pg->gl_matchc; 399 cnt < pg->gl_pathc; ++cnt) { 400 401 /* 402 * Try the _suffix key words first. 403 * 404 * XXX 405 * Older versions of man.conf didn't have the suffix 406 * key words, it was assumed that everything was a .0. 407 * We just test for .0 first, it's fast and probably 408 * going to hit. 409 */ 410 (void)snprintf(buf, sizeof(buf), "*/%s.0", page); 411 if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) 412 goto next; 413 414 e_sufp = (sufp = getlist("_suffix")) == NULL ? 415 NULL : sufp->list.tqh_first; 416 for (found = 0; 417 e_sufp != NULL; e_sufp = e_sufp->q.tqe_next) { 418 (void)snprintf(buf, 419 sizeof(buf), "*/%s%s", page, e_sufp->s); 420 if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) { 421 found = 1; 422 break; 423 } 424 } 425 if (found) 426 goto next; 427 428 /* Try the _build key words next. */ 429 e_sufp = (sufp = getlist("_build")) == NULL ? 430 NULL : sufp->list.tqh_first; 431 for (found = 0; 432 e_sufp != NULL; e_sufp = e_sufp->q.tqe_next) { 433 for (p = e_sufp->s; 434 *p != '\0' && !isspace(*p); ++p); 435 if (*p == '\0') 436 continue; 437 *p = '\0'; 438 (void)snprintf(buf, 439 sizeof(buf), "*/%s%s", page, e_sufp->s); 440 if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) { 441 if (!f_where) 442 build_page(p + 1, 443 &pg->gl_pathv[cnt]); 444 *p = ' '; 445 found = 1; 446 break; 447 } 448 *p = ' '; 449 } 450 if (found) { 451 next: anyfound = 1; 452 if (!f_all) { 453 /* Delete any other matches. */ 454 while (++cnt< pg->gl_pathc) 455 pg->gl_pathv[cnt] = ""; 456 break; 457 } 458 continue; 459 } 460 461 /* It's not a man page, forget about it. */ 462 pg->gl_pathv[cnt] = ""; 463 } 464 465 if (anyfound && !f_all) 466 break; 467 } 468 469 /* If not found, enter onto the missing list. */ 470 if (!anyfound) { 471 if ((missp = getlist("_missing")) == NULL) 472 missp = addlist("_missing"); 473 if ((ep = malloc(sizeof(ENTRY))) == NULL || 474 (ep->s = strdup(page)) == NULL) { 475 warn("malloc"); 476 (void)cleanup(); 477 exit(1); 478 } 479 TAILQ_INSERT_TAIL(&missp->list, ep, q); 480 } 481 return (anyfound); 482 } 483 484 /* 485 * build_page -- 486 * Build a man page for display. 487 */ 488 static void 489 build_page(fmt, pathp) 490 char *fmt, **pathp; 491 { 492 static int warned; 493 ENTRY *ep; 494 TAG *intmpp; 495 int fd, n; 496 char *p, *b; 497 char buf[MAXPATHLEN], cmd[MAXPATHLEN], tpath[sizeof(_PATH_TMP)]; 498 499 /* Let the user know this may take awhile. */ 500 if (!warned) { 501 warned = 1; 502 warnx("Formatting manual page..."); 503 } 504 505 /* 506 * Historically man chdir'd to the root of the man tree. 507 * This was used in man pages that contained relative ".so" 508 * directives (including other man pages for command aliases etc.) 509 * It even went one step farther, by examining the first line 510 * of the man page and parsing the .so filename so it would 511 * make hard(?) links to the cat'ted man pages for space savings. 512 * (We don't do that here, but we could). 513 */ 514 515 /* copy and find the end */ 516 for (b = buf, p = *pathp; (*b++ = *p++) != '\0';) 517 continue; 518 519 /* skip the last two path components, page name and man[n] */ 520 for (--b, --p, n = 2; b != buf; b--, p--) 521 if (*b == '/') 522 if (--n == 0) { 523 *b = '\0'; 524 (void) chdir(buf); 525 p++; 526 break; 527 } 528 529 530 /* Add a remove-when-done list. */ 531 if ((intmpp = getlist("_intmp")) == NULL) 532 intmpp = addlist("_intmp"); 533 534 /* Move to the printf(3) format string. */ 535 for (; *fmt && isspace(*fmt); ++fmt); 536 537 /* 538 * Get a temporary file and build a version of the file 539 * to display. Replace the old file name with the new one. 540 */ 541 (void)strcpy(tpath, _PATH_TMP); 542 if ((fd = mkstemp(tpath)) == -1) { 543 warn("%s", tpath); 544 (void)cleanup(); 545 exit(1); 546 } 547 (void)snprintf(buf, sizeof(buf), "%s > %s", fmt, tpath); 548 (void)snprintf(cmd, sizeof(cmd), buf, p); 549 (void)system(cmd); 550 (void)close(fd); 551 if ((*pathp = strdup(tpath)) == NULL) { 552 warn("malloc"); 553 (void)cleanup(); 554 exit(1); 555 } 556 557 /* Link the built file into the remove-when-done list. */ 558 if ((ep = malloc(sizeof(ENTRY))) == NULL) { 559 warn("malloc"); 560 (void)cleanup(); 561 exit(1); 562 } 563 ep->s = *pathp; 564 TAILQ_INSERT_TAIL(&intmpp->list, ep, q); 565 } 566 567 /* 568 * how -- 569 * display how information 570 */ 571 static void 572 how(fname) 573 char *fname; 574 { 575 FILE *fp; 576 577 int lcnt, print; 578 char *p, buf[256]; 579 580 if (!(fp = fopen(fname, "r"))) { 581 warn("%s", fname); 582 (void)cleanup(); 583 exit (1); 584 } 585 #define S1 "SYNOPSIS" 586 #define S2 "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS" 587 #define D1 "DESCRIPTION" 588 #define D2 "D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN" 589 for (lcnt = print = 0; fgets(buf, sizeof(buf), fp);) { 590 if (!strncmp(buf, S1, sizeof(S1) - 1) || 591 !strncmp(buf, S2, sizeof(S2) - 1)) { 592 print = 1; 593 continue; 594 } else if (!strncmp(buf, D1, sizeof(D1) - 1) || 595 !strncmp(buf, D2, sizeof(D2) - 1)) 596 return; 597 if (!print) 598 continue; 599 if (*buf == '\n') 600 ++lcnt; 601 else { 602 for(; lcnt; --lcnt) 603 (void)putchar('\n'); 604 for (p = buf; isspace(*p); ++p); 605 (void)fputs(p, stdout); 606 } 607 } 608 (void)fclose(fp); 609 } 610 611 /* 612 * cat -- 613 * cat out the file 614 */ 615 static void 616 cat(fname) 617 char *fname; 618 { 619 int fd, n; 620 char buf[2048]; 621 622 if ((fd = open(fname, O_RDONLY, 0)) < 0) { 623 warn("%s", fname); 624 (void)cleanup(); 625 exit(1); 626 } 627 while ((n = read(fd, buf, sizeof(buf))) > 0) 628 if (write(STDOUT_FILENO, buf, n) != n) { 629 warn("write"); 630 (void)cleanup(); 631 exit (1); 632 } 633 if (n == -1) { 634 warn("read"); 635 (void)cleanup(); 636 exit(1); 637 } 638 (void)close(fd); 639 } 640 641 /* 642 * check_pager -- 643 * check the user supplied page information 644 */ 645 static char * 646 check_pager(name) 647 char *name; 648 { 649 char *p, *save; 650 651 /* 652 * if the user uses "more", we make it "more -s"; watch out for 653 * PAGER = "mypager /usr/ucb/more" 654 */ 655 for (p = name; *p && !isspace(*p); ++p); 656 for (; p > name && *p != '/'; --p); 657 if (p != name) 658 ++p; 659 660 /* make sure it's "more", not "morex" */ 661 if (!strncmp(p, "more", 4) && (!p[4] || isspace(p[4]))){ 662 save = name; 663 /* allocate space to add the "-s" */ 664 if (!(name = 665 malloc((u_int)(strlen(save) + sizeof("-s") + 1)))) 666 err(1, "malloc"); 667 (void)sprintf(name, "%s %s", save, "-s"); 668 } 669 return(name); 670 } 671 672 /* 673 * jump -- 674 * strip out flag argument and jump 675 */ 676 static void 677 jump(argv, flag, name) 678 char **argv, *flag, *name; 679 { 680 char **arg; 681 682 argv[0] = name; 683 for (arg = argv + 1; *arg; ++arg) 684 if (!strcmp(*arg, flag)) 685 break; 686 for (; *arg; ++arg) 687 arg[0] = arg[1]; 688 execvp(name, argv); 689 (void)fprintf(stderr, "%s: Command not found.\n", name); 690 exit(1); 691 } 692 693 /* 694 * onsig -- 695 * If signaled, delete the temporary files. 696 */ 697 static void 698 onsig(signo) 699 int signo; 700 { 701 (void)cleanup(); 702 703 (void)signal(signo, SIG_DFL); 704 (void)kill(getpid(), signo); 705 706 /* NOTREACHED */ 707 exit (1); 708 } 709 710 /* 711 * cleanup -- 712 * Clean up temporary files, show any error messages. 713 */ 714 static int 715 cleanup() 716 { 717 TAG *intmpp, *missp; 718 ENTRY *ep; 719 int rval; 720 721 rval = 0; 722 ep = (missp = getlist("_missing")) == NULL ? 723 NULL : missp->list.tqh_first; 724 if (ep != NULL) 725 for (; ep != NULL; ep = ep->q.tqe_next) { 726 warnx("no entry for %s in the manual.", ep->s); 727 rval = 1; 728 } 729 730 ep = (intmpp = getlist("_intmp")) == NULL ? 731 NULL : intmpp->list.tqh_first; 732 for (; ep != NULL; ep = ep->q.tqe_next) 733 (void)unlink(ep->s); 734 return (rval); 735 } 736 737 /* 738 * usage -- 739 * print usage message and die 740 */ 741 static void 742 usage() 743 { 744 (void)fprintf(stderr, 745 "usage: man [-achw] [-C file] [-M path] [-m path] [section] title ...\n"); 746 exit(1); 747 } 748