1 /* $NetBSD: man.c,v 1.29 2002/09/13 15:56:38 thorpej 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 1.29 2002/09/13 15:56:38 thorpej Exp $"); 48 #endif 49 #endif /* not lint */ 50 51 #include <sys/param.h> 52 #include <sys/queue.h> 53 #include <sys/utsname.h> 54 55 #include <ctype.h> 56 #include <err.h> 57 #include <errno.h> 58 #include <fcntl.h> 59 #include <fnmatch.h> 60 #include <glob.h> 61 #include <signal.h> 62 #include <stdio.h> 63 #include <stdlib.h> 64 #include <string.h> 65 #include <unistd.h> 66 67 #include "manconf.h" 68 #include "pathnames.h" 69 70 int f_all, f_where; 71 72 int main __P((int, char **)); 73 static void build_page __P((char *, char **)); 74 static void cat __P((char *)); 75 static const char *check_pager __P((const char *)); 76 static int cleanup __P((void)); 77 static void how __P((char *)); 78 static void jump __P((char **, char *, char *)); 79 static int manual __P((char *, TAG *, glob_t *, const char *)); 80 static void onsig __P((int)); 81 static void usage __P((void)); 82 83 int 84 main(argc, argv) 85 int argc; 86 char *argv[]; 87 { 88 TAG *defp, *section, *newpathp, *subp; 89 ENTRY *e_defp, *e_subp; 90 glob_t pg; 91 size_t len; 92 int ch, f_cat, f_how, found, abs_section; 93 char **ap, *cmd, *p, *p_add, *p_path; 94 const char *machine, *pager, *conffile, *pathsearch, *sectionname; 95 char buf[MAXPATHLEN * 2]; 96 97 #ifdef __GNUC__ 98 pager = NULL; /* XXX gcc -Wuninitialized */ 99 #endif 100 101 f_cat = f_how = 0; 102 sectionname = pathsearch = conffile = p_add = p_path = NULL; 103 while ((ch = getopt(argc, argv, "-aC:cfhkM:m:P:s:S:w")) != -1) 104 switch (ch) { 105 case 'a': 106 f_all = 1; 107 break; 108 case 'C': 109 conffile = optarg; 110 break; 111 case 'c': 112 case '-': /* Deprecated. */ 113 f_cat = 1; 114 break; 115 case 'h': 116 f_how = 1; 117 break; 118 case 'm': 119 p_add = optarg; 120 break; 121 case 'M': 122 case 'P': /* Backward compatibility. */ 123 p_path = strdup(optarg); 124 break; 125 /* 126 * The -f and -k options are backward compatible, 127 * undocumented ways of calling whatis(1) and apropos(1). 128 */ 129 case 'f': 130 jump(argv, "-f", "whatis"); 131 /* NOTREACHED */ 132 case 'k': 133 jump(argv, "-k", "apropos"); 134 /* NOTREACHED */ 135 case 's': 136 if (sectionname != NULL) 137 usage(); 138 sectionname = optarg; 139 break; 140 case 'S': 141 pathsearch = optarg; 142 break; 143 case 'w': 144 f_all = f_where = 1; 145 break; 146 case '?': 147 default: 148 usage(); 149 } 150 argc -= optind; 151 argv += optind; 152 153 if (!argc) 154 usage(); 155 156 if (!f_cat && !f_how && !f_where) { 157 if (!isatty(STDOUT_FILENO)) { 158 f_cat = 1; 159 } else { 160 if ((pager = getenv("PAGER")) != NULL && 161 pager[0] != '\0') 162 pager = check_pager(pager); 163 else 164 pager = _PATH_PAGER; 165 } 166 } 167 168 /* Read the configuration file. */ 169 config(conffile); 170 171 /* Get the machine type. */ 172 if ((machine = getenv("MACHINE")) == NULL) { 173 struct utsname utsname; 174 175 if (uname(&utsname) == -1) { 176 perror("uname"); 177 exit(1); 178 } 179 machine = utsname.machine; 180 } 181 182 /* create an empty _default list if the config file didn't have one */ 183 defp = getlist("_default", 1); 184 185 /* if -M wasn't specified, check for MANPATH */ 186 if (p_path == NULL) 187 p_path = getenv("MANPATH"); 188 189 /* 190 * get section. abs_section will be non-zero iff the user 191 * specified a section and it had absolute (rather than 192 * relative) paths in the man.conf file. 193 */ 194 if ((argc > 1 || sectionname != NULL) && 195 (section = getlist(sectionname ? sectionname : *argv, 0)) != NULL) { 196 if (sectionname == NULL) { 197 argv++; 198 argc--; 199 } 200 abs_section = (! TAILQ_EMPTY(§ion->list) && 201 *(TAILQ_FIRST(§ion->list)->s) == '/'); 202 } else { 203 section = NULL; 204 abs_section = 0; 205 } 206 207 /* get subdir list */ 208 subp = getlist("_subdir", 1); 209 210 /* 211 * now that we have all the inputs we must generate a search path. 212 */ 213 214 /* 215 * 1: If user specified a section and it has absolute paths 216 * in the config file, then that overrides _default, MANPATH and 217 * path passed via -M. 218 */ 219 if (abs_section) { 220 p_path = NULL; /* zap -M/MANPATH */ 221 defp = section; /* zap _default */ 222 section = NULL; /* promoted to defp */ 223 } 224 225 226 /* 227 * 2: Section can be non-null only if a section was specified 228 * and the config file has relative paths - the section list 229 * overrides _subdir in this case. 230 */ 231 if (section) 232 subp = section; 233 234 235 /* 236 * 3: now we either have text string path (p_path) or a tag 237 * based path (defp). we need to append subp and machine 238 * to each element in the path. 239 * 240 * for backward compat, we do not append subp if abs_section 241 * and the path does not end in "/". 242 */ 243 newpathp = getlist("_new_path", 1); 244 if (p_path) { 245 /* use p_path */ 246 for (; (p = strtok(p_path, ":")) != NULL; p_path = NULL) { 247 TAILQ_FOREACH(e_subp, &subp->list, q) { 248 snprintf(buf, sizeof(buf), "%s/%s{/%s,}", 249 p, e_subp->s, machine); 250 addentry(newpathp, buf, 0); 251 } 252 } 253 } else { 254 /* use defp rather than p_path */ 255 TAILQ_FOREACH(e_defp, &defp->list, q) { 256 257 /* handle trailing "/" magic here ... */ 258 if (abs_section && 259 e_defp->s[strlen(e_defp->s) - 1] != '/') { 260 261 (void)snprintf(buf, sizeof(buf), 262 "%s{/%s,}", e_defp->s, machine); 263 addentry(newpathp, buf, 0); 264 continue; 265 } 266 267 TAILQ_FOREACH(e_subp, &subp->list, q) { 268 snprintf(buf, sizeof(buf), "%s%s%s{/%s,}", 269 e_defp->s, (abs_section) ? "" : "/", 270 e_subp->s, machine); 271 addentry(newpathp, buf, 0); 272 } 273 } 274 } /* using defp ... */ 275 276 /* now replace the current path with the new one */ 277 defp = newpathp; 278 279 /* 280 * 4: prepend the "-m" path, if specified. we always add 281 * subp and machine to this part of the path. 282 */ 283 284 if (p_add) { 285 for (p = strtok(p_add, ":") ; p ; p = strtok(NULL, ":")) { 286 TAILQ_FOREACH(e_subp, &subp->list, q) { 287 snprintf(buf, sizeof(buf), "%s/%s{/%s,}", 288 p, e_subp->s, machine); 289 addentry(newpathp, buf, 1); 290 } 291 } 292 } 293 294 295 /* 296 * 5: Search for the files. Set up an interrupt handler, so the 297 * temporary files go away. 298 */ 299 (void)signal(SIGINT, onsig); 300 (void)signal(SIGHUP, onsig); 301 (void)signal(SIGPIPE, onsig); 302 303 memset(&pg, 0, sizeof(pg)); 304 for (found = 0; *argv; ++argv) 305 if (manual(*argv, defp, &pg, pathsearch)) 306 found = 1; 307 308 /* 6: If nothing found, we're done. */ 309 if (!found) { 310 (void)cleanup(); 311 exit (1); 312 } 313 314 /* 7: If it's simple, display it fast. */ 315 if (f_cat) { 316 for (ap = pg.gl_pathv; *ap != NULL; ++ap) { 317 if (**ap == '\0') 318 continue; 319 cat(*ap); 320 } 321 exit (cleanup()); 322 } 323 if (f_how) { 324 for (ap = pg.gl_pathv; *ap != NULL; ++ap) { 325 if (**ap == '\0') 326 continue; 327 how(*ap); 328 } 329 exit(cleanup()); 330 } 331 if (f_where) { 332 for (ap = pg.gl_pathv; *ap != NULL; ++ap) { 333 if (**ap == '\0') 334 continue; 335 (void)printf("%s\n", *ap); 336 } 337 exit(cleanup()); 338 } 339 340 /* 341 * 8: We display things in a single command; build a list of things 342 * to display. 343 */ 344 for (ap = pg.gl_pathv, len = strlen(pager) + 1; *ap != NULL; ++ap) { 345 if (**ap == '\0') 346 continue; 347 len += strlen(*ap) + 1; 348 } 349 if ((cmd = malloc(len)) == NULL) { 350 warn("malloc"); 351 (void)cleanup(); 352 exit(1); 353 } 354 p = cmd; 355 len = strlen(pager); 356 memmove(p, pager, len); 357 p += len; 358 *p++ = ' '; 359 for (ap = pg.gl_pathv; *ap != NULL; ++ap) { 360 if (**ap == '\0') 361 continue; 362 len = strlen(*ap); 363 memmove(p, *ap, len); 364 p += len; 365 *p++ = ' '; 366 } 367 *--p = '\0'; 368 369 /* Use system(3) in case someone's pager is "pager arg1 arg2". */ 370 (void)system(cmd); 371 372 exit(cleanup()); 373 } 374 375 /* 376 * manual -- 377 * Search the manuals for the pages. 378 */ 379 static int 380 manual(page, tag, pg, pathsearch) 381 char *page; 382 TAG *tag; 383 glob_t *pg; 384 const char *pathsearch; 385 { 386 ENTRY *ep, *e_sufp, *e_tag; 387 TAG *missp, *sufp; 388 int anyfound, cnt, error, found; 389 char *p, buf[MAXPATHLEN], *escpage, *eptr; 390 static const char escglob[] = "\\~?*{}[]"; 391 392 anyfound = 0; 393 buf[0] = '*'; 394 395 /* 396 * Fixup page which may contain glob(3) special characters, e.g. 397 * the famous "No man page for [" FAQ. 398 */ 399 if ((escpage = malloc((2 * strlen(page)) + 1)) == NULL) { 400 warn("malloc"); 401 (void)cleanup(); 402 exit(1); 403 } 404 405 p = page; 406 eptr = escpage; 407 408 while (*p) { 409 if (strchr(escglob, *p) != NULL) { 410 *eptr++ = '\\'; 411 *eptr++ = *p++; 412 } else 413 *eptr++ = *p++; 414 } 415 416 *eptr = '\0'; 417 418 /* For each element in the list... */ 419 TAILQ_FOREACH(e_tag, &tag->list, q) { 420 (void)snprintf(buf, sizeof(buf), "%s/%s.*", e_tag->s, escpage); 421 if ((error = glob(buf, 422 GLOB_APPEND | GLOB_BRACE | GLOB_NOSORT, NULL, pg)) != 0) { 423 if (error == GLOB_NOMATCH) 424 continue; 425 else { 426 warn("globbing"); 427 (void)cleanup(); 428 exit(1); 429 } 430 } 431 if (pg->gl_matchc == 0) 432 continue; 433 434 /* Find out if it's really a man page. */ 435 for (cnt = pg->gl_pathc - pg->gl_matchc; 436 cnt < pg->gl_pathc; ++cnt) { 437 438 if (pathsearch) { 439 p = strstr(pg->gl_pathv[cnt], pathsearch); 440 if (!p || strchr(p, '/') == NULL) { 441 pg->gl_pathv[cnt] = ""; 442 continue; 443 } 444 } 445 446 /* 447 * Try the _suffix key words first. 448 * 449 * XXX 450 * Older versions of man.conf didn't have the suffix 451 * key words, it was assumed that everything was a .0. 452 * We just test for .0 first, it's fast and probably 453 * going to hit. 454 */ 455 (void)snprintf(buf, sizeof(buf), "*/%s.0", escpage); 456 if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) 457 goto next; 458 459 sufp = getlist("_suffix", 1); 460 found = 0; 461 TAILQ_FOREACH(e_sufp, &sufp->list, q) { 462 (void)snprintf(buf, 463 sizeof(buf), "*/%s%s", escpage, 464 e_sufp->s); 465 if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) { 466 found = 1; 467 break; 468 } 469 } 470 if (found) 471 goto next; 472 473 /* Try the _build key words next. */ 474 sufp = getlist("_build", 1); 475 found = 0; 476 TAILQ_FOREACH(e_sufp, &sufp->list, q) { 477 for (p = e_sufp->s; 478 *p != '\0' && !isspace((unsigned char)*p); 479 ++p) 480 continue; 481 if (*p == '\0') 482 continue; 483 *p = '\0'; 484 (void)snprintf(buf, 485 sizeof(buf), "*/%s%s", escpage, 486 e_sufp->s); 487 if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) { 488 if (!f_where) 489 build_page(p + 1, 490 &pg->gl_pathv[cnt]); 491 *p = ' '; 492 found = 1; 493 break; 494 } 495 *p = ' '; 496 } 497 if (found) { 498 next: anyfound = 1; 499 if (!f_all) { 500 /* Delete any other matches. */ 501 while (++cnt< pg->gl_pathc) 502 pg->gl_pathv[cnt] = ""; 503 break; 504 } 505 continue; 506 } 507 508 /* It's not a man page, forget about it. */ 509 pg->gl_pathv[cnt] = ""; 510 } 511 512 if (anyfound && !f_all) 513 break; 514 } 515 516 /* If not found, enter onto the missing list. */ 517 if (!anyfound) { 518 missp = getlist("_missing", 1); 519 if ((ep = malloc(sizeof(ENTRY))) == NULL || 520 (ep->s = strdup(page)) == NULL) { 521 warn("malloc"); 522 (void)cleanup(); 523 exit(1); 524 } 525 TAILQ_INSERT_TAIL(&missp->list, ep, q); 526 } 527 528 free(escpage); 529 return (anyfound); 530 } 531 532 /* 533 * build_page -- 534 * Build a man page for display. 535 */ 536 static void 537 build_page(fmt, pathp) 538 char *fmt, **pathp; 539 { 540 static int warned; 541 ENTRY *ep; 542 TAG *intmpp; 543 int fd, n; 544 char *p, *b; 545 char buf[MAXPATHLEN], cmd[MAXPATHLEN], tpath[MAXPATHLEN]; 546 const char *tmpdir; 547 548 /* Let the user know this may take awhile. */ 549 if (!warned) { 550 warned = 1; 551 warnx("Formatting manual page..."); 552 } 553 554 /* 555 * Historically man chdir'd to the root of the man tree. 556 * This was used in man pages that contained relative ".so" 557 * directives (including other man pages for command aliases etc.) 558 * It even went one step farther, by examining the first line 559 * of the man page and parsing the .so filename so it would 560 * make hard(?) links to the cat'ted man pages for space savings. 561 * (We don't do that here, but we could). 562 */ 563 564 /* copy and find the end */ 565 for (b = buf, p = *pathp; (*b++ = *p++) != '\0';) 566 continue; 567 568 /* skip the last two path components, page name and man[n] */ 569 for (--b, --p, n = 2; b != buf; b--, p--) 570 if (*b == '/') 571 if (--n == 0) { 572 *b = '\0'; 573 (void) chdir(buf); 574 p++; 575 break; 576 } 577 578 579 /* Add a remove-when-done list. */ 580 intmpp = getlist("_intmp", 1); 581 582 /* Move to the printf(3) format string. */ 583 for (; *fmt && isspace((unsigned char)*fmt); ++fmt) 584 continue; 585 586 /* 587 * Get a temporary file and build a version of the file 588 * to display. Replace the old file name with the new one. 589 */ 590 if ((tmpdir = getenv("TMPDIR")) == NULL) 591 tmpdir = _PATH_TMP; 592 (void)snprintf(tpath, sizeof (tpath), "%s/%s", tmpdir, TMPFILE); 593 if ((fd = mkstemp(tpath)) == -1) { 594 warn("%s", tpath); 595 (void)cleanup(); 596 exit(1); 597 } 598 (void)snprintf(buf, sizeof(buf), "%s > %s", fmt, tpath); 599 (void)snprintf(cmd, sizeof(cmd), buf, p); 600 (void)system(cmd); 601 (void)close(fd); 602 if ((*pathp = strdup(tpath)) == NULL) { 603 warn("malloc"); 604 (void)cleanup(); 605 exit(1); 606 } 607 608 /* Link the built file into the remove-when-done list. */ 609 if ((ep = malloc(sizeof(ENTRY))) == NULL) { 610 warn("malloc"); 611 (void)cleanup(); 612 exit(1); 613 } 614 ep->s = *pathp; 615 TAILQ_INSERT_TAIL(&intmpp->list, ep, q); 616 } 617 618 /* 619 * how -- 620 * display how information 621 */ 622 static void 623 how(fname) 624 char *fname; 625 { 626 FILE *fp; 627 628 int lcnt, print; 629 char *p, buf[256]; 630 631 if (!(fp = fopen(fname, "r"))) { 632 warn("%s", fname); 633 (void)cleanup(); 634 exit (1); 635 } 636 #define S1 "SYNOPSIS" 637 #define S2 "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS" 638 #define D1 "DESCRIPTION" 639 #define D2 "D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN" 640 for (lcnt = print = 0; fgets(buf, sizeof(buf), fp);) { 641 if (!strncmp(buf, S1, sizeof(S1) - 1) || 642 !strncmp(buf, S2, sizeof(S2) - 1)) { 643 print = 1; 644 continue; 645 } else if (!strncmp(buf, D1, sizeof(D1) - 1) || 646 !strncmp(buf, D2, sizeof(D2) - 1)) 647 return; 648 if (!print) 649 continue; 650 if (*buf == '\n') 651 ++lcnt; 652 else { 653 for(; lcnt; --lcnt) 654 (void)putchar('\n'); 655 for (p = buf; isspace((unsigned char)*p); ++p) 656 continue; 657 (void)fputs(p, stdout); 658 } 659 } 660 (void)fclose(fp); 661 } 662 663 /* 664 * cat -- 665 * cat out the file 666 */ 667 static void 668 cat(fname) 669 char *fname; 670 { 671 int fd, n; 672 char buf[2048]; 673 674 if ((fd = open(fname, O_RDONLY, 0)) < 0) { 675 warn("%s", fname); 676 (void)cleanup(); 677 exit(1); 678 } 679 while ((n = read(fd, buf, sizeof(buf))) > 0) 680 if (write(STDOUT_FILENO, buf, n) != n) { 681 warn("write"); 682 (void)cleanup(); 683 exit (1); 684 } 685 if (n == -1) { 686 warn("read"); 687 (void)cleanup(); 688 exit(1); 689 } 690 (void)close(fd); 691 } 692 693 /* 694 * check_pager -- 695 * check the user supplied page information 696 */ 697 static const char * 698 check_pager(name) 699 const char *name; 700 { 701 const char *p; 702 703 /* 704 * if the user uses "more", we make it "more -s"; watch out for 705 * PAGER = "mypager /usr/ucb/more" 706 */ 707 for (p = name; *p && !isspace((unsigned char)*p); ++p) 708 continue; 709 for (; p > name && *p != '/'; --p); 710 if (p != name) 711 ++p; 712 713 /* make sure it's "more", not "morex" */ 714 if (!strncmp(p, "more", 4) && (!p[4] || isspace((unsigned char)p[4]))){ 715 char *newname; 716 (void)asprintf(&newname, "%s %s", p, "-s"); 717 name = newname; 718 } 719 720 return (name); 721 } 722 723 /* 724 * jump -- 725 * strip out flag argument and jump 726 */ 727 static void 728 jump(argv, flag, name) 729 char **argv, *flag, *name; 730 { 731 char **arg; 732 733 argv[0] = name; 734 for (arg = argv + 1; *arg; ++arg) 735 if (!strcmp(*arg, flag)) 736 break; 737 for (; *arg; ++arg) 738 arg[0] = arg[1]; 739 execvp(name, argv); 740 (void)fprintf(stderr, "%s: Command not found.\n", name); 741 exit(1); 742 } 743 744 /* 745 * onsig -- 746 * If signaled, delete the temporary files. 747 */ 748 static void 749 onsig(signo) 750 int signo; 751 { 752 sigset_t set; 753 754 (void)cleanup(); 755 756 (void)signal(signo, SIG_DFL); 757 758 /* unblock the signal */ 759 sigemptyset(&set); 760 sigaddset(&set, signo); 761 sigprocmask(SIG_UNBLOCK, &set, (sigset_t *) NULL); 762 763 (void)kill(getpid(), signo); 764 765 /* NOTREACHED */ 766 exit (1); 767 } 768 769 /* 770 * cleanup -- 771 * Clean up temporary files, show any error messages. 772 */ 773 static int 774 cleanup() 775 { 776 TAG *intmpp, *missp; 777 ENTRY *ep; 778 int rval; 779 780 rval = 0; 781 /* 782 * get missing list, but don't create missing _missing, 783 * as we don't want to try & allocate memory in getlist() 784 */ 785 if ((missp = getlist("_missing", 0)) != NULL) 786 TAILQ_FOREACH(ep, &missp->list, q) { 787 warnx("no entry for %s in the manual.", ep->s); 788 rval = 1; 789 } 790 791 /* 792 * get tempfile list, but don't create missing _intmp, 793 * as we don't want to try & allocate memory in getlist() 794 */ 795 if ((intmpp = getlist("_intmp", 0)) != NULL) 796 TAILQ_FOREACH(ep, &intmpp->list, q) 797 (void)unlink(ep->s); 798 return (rval); 799 } 800 801 /* 802 * usage -- 803 * print usage message and die 804 */ 805 static void 806 usage() 807 { 808 809 (void)fprintf(stderr, "Usage: %s [-achw] [-C file] [-M path] [-m path]" 810 "[-S srch] [[-s] section] title ...\n", getprogname()); 811 exit(1); 812 } 813