man.c revision 1.15 1 /* $NetBSD: man.c,v 1.15 1998/11/06 22:33:47 christos 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 1.15 1998/11/06 22:33:47 christos 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 #ifndef MACHINE
70 #define MACHINE __ARCHITECTURE__
71 #endif
72
73 int f_all, f_where;
74
75 int main __P((int, char **));
76 static void build_page __P((char *, char **));
77 static void cat __P((char *));
78 static char *check_pager __P((char *));
79 static int cleanup __P((void));
80 static void how __P((char *));
81 static void jump __P((char **, char *, char *));
82 static int manual __P((char *, TAG *, glob_t *));
83 static void onsig __P((int));
84 static void usage __P((void));
85
86 int
87 main(argc, argv)
88 int argc;
89 char *argv[];
90 {
91 TAG *defp, *defnewp, *section, *sectnewp, *subp;
92 ENTRY *e_defp, *e_sectp, *e_subp, *ep;
93 glob_t pg;
94 size_t len;
95 int ch, f_cat, f_how, found;
96 char **ap, *cmd, *machine, *p, *p_add, *p_path, *pager, *slashp;
97 char *conffile, buf[MAXPATHLEN * 2];
98
99 #ifdef __GNUC__
100 pager = NULL; /* XXX gcc -Wuninitialized */
101 #endif
102
103 f_cat = f_how = 0;
104 conffile = p_add = p_path = NULL;
105 while ((ch = getopt(argc, argv, "-aC:cfhkM:m:P:w")) != -1)
106 switch (ch) {
107 case 'a':
108 f_all = 1;
109 break;
110 case 'C':
111 conffile = optarg;
112 break;
113 case 'c':
114 case '-': /* Deprecated. */
115 f_cat = 1;
116 break;
117 case 'h':
118 f_how = 1;
119 break;
120 case 'm':
121 p_add = optarg;
122 break;
123 case 'M':
124 case 'P': /* Backward compatibility. */
125 p_path = optarg;
126 break;
127 /*
128 * The -f and -k options are backward compatible,
129 * undocumented ways of calling whatis(1) and apropos(1).
130 */
131 case 'f':
132 jump(argv, "-f", "whatis");
133 /* NOTREACHED */
134 case 'k':
135 jump(argv, "-k", "apropos");
136 /* NOTREACHED */
137 case 'w':
138 f_all = f_where = 1;
139 break;
140 case '?':
141 default:
142 usage();
143 }
144 argc -= optind;
145 argv += optind;
146
147 if (!*argv)
148 usage();
149
150 if (!f_cat && !f_how && !f_where) {
151 if (!isatty(1))
152 f_cat = 1;
153 else {
154 if ((pager = getenv("PAGER")) != NULL)
155 pager = check_pager(pager);
156 else pager = _PATH_PAGER;
157 }
158 }
159 /* Read the configuration file. */
160 config(conffile);
161
162 /* Get the machine type. */
163 if ((machine = getenv("MACHINE")) == NULL)
164 machine = MACHINE;
165
166 /* If there's no _default list, create an empty one. */
167 if ((defp = getlist("_default")) == NULL)
168 defp = addlist("_default");
169
170 /*
171 * 1: If the user specified a MANPATH variable, or set the -M
172 * option, we replace the _default list with the user's list,
173 * appending the entries in the _subdir list and the machine.
174 */
175 if (p_path == NULL)
176 p_path = getenv("MANPATH");
177 if (p_path != NULL) {
178 while ((e_defp = defp->list.tqh_first) != NULL) {
179 free(e_defp->s);
180 TAILQ_REMOVE(&defp->list, e_defp, q);
181 }
182 for (p = strtok(p_path, ":");
183 p != NULL; p = strtok(NULL, ":")) {
184 slashp = p[strlen(p) - 1] == '/' ? "" : "/";
185 e_subp = (subp = getlist("_subdir")) == NULL ?
186 NULL : subp->list.tqh_first;
187 for (; e_subp != NULL; e_subp = e_subp->q.tqe_next) {
188 (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}",
189 p, slashp, e_subp->s, machine);
190 if ((ep = malloc(sizeof(ENTRY))) == NULL ||
191 (ep->s = strdup(buf)) == NULL)
192 err(1, "malloc");
193 TAILQ_INSERT_TAIL(&defp->list, ep, q);
194 }
195 }
196 }
197
198 /*
199 * 2: If the user did not specify MANPATH, -M or a section, rewrite
200 * the _default list to include the _subdir list and the machine.
201 */
202 if (argv[1] == NULL)
203 section = NULL;
204 else if ((section = getlist(*argv)) != NULL)
205 ++argv;
206 if (p_path == NULL && section == NULL) {
207 defnewp = addlist("_default_new");
208 e_defp =
209 defp->list.tqh_first == NULL ? NULL : defp->list.tqh_first;
210 for (; e_defp != NULL; e_defp = e_defp->q.tqe_next) {
211 slashp =
212 e_defp->s[strlen(e_defp->s) - 1] == '/' ? "" : "/";
213 e_subp = (subp = getlist("_subdir")) == NULL ?
214 NULL : subp->list.tqh_first;
215 for (; e_subp != NULL; e_subp = e_subp->q.tqe_next) {
216 (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}",
217 e_defp->s, slashp, e_subp->s, machine);
218 if ((ep = malloc(sizeof(ENTRY))) == NULL ||
219 (ep->s = strdup(buf)) == NULL)
220 err(1, "malloc");
221 TAILQ_INSERT_TAIL(&defnewp->list, ep, q);
222 }
223 }
224 defp = getlist("_default");
225 while ((e_defp = defp->list.tqh_first) != NULL) {
226 free(e_defp->s);
227 TAILQ_REMOVE(&defp->list, e_defp, q);
228 }
229 free(defp->s);
230 TAILQ_REMOVE(&head, defp, q);
231 defnewp = getlist("_default_new");
232 free(defnewp->s);
233 defnewp->s = "_default";
234 defp = defnewp;
235 }
236
237 /*
238 * 3: If the user set the -m option, insert the user's list before
239 * whatever list we have, again appending the _subdir list and
240 * the machine.
241 */
242 if (p_add != NULL)
243 for (p = strtok(p_add, ":"); p != NULL; p = strtok(NULL, ":")) {
244 slashp = p[strlen(p) - 1] == '/' ? "" : "/";
245 e_subp = (subp = getlist("_subdir")) == NULL ?
246 NULL : subp->list.tqh_first;
247 for (; e_subp != NULL; e_subp = e_subp->q.tqe_next) {
248 (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}",
249 p, slashp, e_subp->s, machine);
250 if ((ep = malloc(sizeof(ENTRY))) == NULL ||
251 (ep->s = strdup(buf)) == NULL)
252 err(1, "malloc");
253 TAILQ_INSERT_HEAD(&defp->list, ep, q);
254 }
255 }
256
257 /*
258 * 4: If no -m was specified, and a section was, rewrite the section's
259 * paths (if they have a trailing slash) to append the _subdir list
260 * and the machine. This then becomes the _default list.
261 */
262 if (p_add == NULL && section != NULL) {
263 sectnewp = addlist("_section_new");
264 for (e_sectp = section->list.tqh_first;
265 e_sectp != NULL; e_sectp = e_sectp->q.tqe_next) {
266 if (e_sectp->s[strlen(e_sectp->s) - 1] != '/') {
267 (void)snprintf(buf, sizeof(buf),
268 "%s{/%s,}", e_sectp->s, machine);
269 if ((ep = malloc(sizeof(ENTRY))) == NULL ||
270 (ep->s = strdup(buf)) == NULL)
271 err(1, "malloc");
272 TAILQ_INSERT_TAIL(§newp->list, ep, q);
273 continue;
274 }
275 e_subp = (subp = getlist("_subdir")) == NULL ?
276 NULL : subp->list.tqh_first;
277 for (; e_subp != NULL; e_subp = e_subp->q.tqe_next) {
278 (void)snprintf(buf, sizeof(buf), "%s%s{/%s,}",
279 e_sectp->s, e_subp->s, machine);
280 if ((ep = malloc(sizeof(ENTRY))) == NULL ||
281 (ep->s = strdup(buf)) == NULL)
282 err(1, "malloc");
283 TAILQ_INSERT_TAIL(§newp->list, ep, q);
284 }
285 }
286 sectnewp->s = section->s;
287 defp = sectnewp;
288 TAILQ_REMOVE(&head, section, q);
289 }
290
291 /*
292 * 5: Search for the files. Set up an interrupt handler, so the
293 * temporary files go away.
294 */
295 (void)signal(SIGINT, onsig);
296 (void)signal(SIGHUP, onsig);
297
298 memset(&pg, 0, sizeof(pg));
299 for (found = 0; *argv; ++argv)
300 if (manual(*argv, defp, &pg))
301 found = 1;
302
303 /* 6: If nothing found, we're done. */
304 if (!found) {
305 (void)cleanup();
306 exit (1);
307 }
308
309 /* 7: If it's simple, display it fast. */
310 if (f_cat) {
311 for (ap = pg.gl_pathv; *ap != NULL; ++ap) {
312 if (**ap == '\0')
313 continue;
314 cat(*ap);
315 }
316 exit (cleanup());
317 }
318 if (f_how) {
319 for (ap = pg.gl_pathv; *ap != NULL; ++ap) {
320 if (**ap == '\0')
321 continue;
322 how(*ap);
323 }
324 exit(cleanup());
325 }
326 if (f_where) {
327 for (ap = pg.gl_pathv; *ap != NULL; ++ap) {
328 if (**ap == '\0')
329 continue;
330 (void)printf("%s\n", *ap);
331 }
332 exit(cleanup());
333 }
334
335 /*
336 * 8: We display things in a single command; build a list of things
337 * to display.
338 */
339 for (ap = pg.gl_pathv, len = strlen(pager) + 1; *ap != NULL; ++ap) {
340 if (**ap == '\0')
341 continue;
342 len += strlen(*ap) + 1;
343 }
344 if ((cmd = malloc(len)) == NULL) {
345 warn("malloc");
346 (void)cleanup();
347 exit(1);
348 }
349 p = cmd;
350 len = strlen(pager);
351 memmove(p, pager, len);
352 p += len;
353 *p++ = ' ';
354 for (ap = pg.gl_pathv; *ap != NULL; ++ap) {
355 if (**ap == '\0')
356 continue;
357 len = strlen(*ap);
358 memmove(p, *ap, len);
359 p += len;
360 *p++ = ' ';
361 }
362 *--p = '\0';
363
364 /* Use system(3) in case someone's pager is "pager arg1 arg2". */
365 (void)system(cmd);
366
367 exit(cleanup());
368 }
369
370 /*
371 * manual --
372 * Search the manuals for the pages.
373 */
374 static int
375 manual(page, tag, pg)
376 char *page;
377 TAG *tag;
378 glob_t *pg;
379 {
380 ENTRY *ep, *e_sufp, *e_tag;
381 TAG *missp, *sufp;
382 int anyfound, cnt, error, found;
383 char *p, buf[MAXPATHLEN];
384
385 anyfound = 0;
386 buf[0] = '*';
387
388 /* For each element in the list... */
389 e_tag = tag == NULL ? NULL : tag->list.tqh_first;
390 for (; e_tag != NULL; e_tag = e_tag->q.tqe_next) {
391 (void)snprintf(buf, sizeof(buf), "%s/%s.*", e_tag->s, page);
392 if ((error = glob(buf,
393 GLOB_APPEND | GLOB_BRACE | GLOB_NOSORT, NULL, pg)) != 0) {
394 if (error == GLOB_NOMATCH)
395 continue;
396 else {
397 warn("globbing");
398 (void)cleanup();
399 exit(1);
400 }
401 }
402 if (pg->gl_matchc == 0)
403 continue;
404
405 /* Find out if it's really a man page. */
406 for (cnt = pg->gl_pathc - pg->gl_matchc;
407 cnt < pg->gl_pathc; ++cnt) {
408
409 /*
410 * Try the _suffix key words first.
411 *
412 * XXX
413 * Older versions of man.conf didn't have the suffix
414 * key words, it was assumed that everything was a .0.
415 * We just test for .0 first, it's fast and probably
416 * going to hit.
417 */
418 (void)snprintf(buf, sizeof(buf), "*/%s.0", page);
419 if (!fnmatch(buf, pg->gl_pathv[cnt], 0))
420 goto next;
421
422 e_sufp = (sufp = getlist("_suffix")) == NULL ?
423 NULL : sufp->list.tqh_first;
424 for (found = 0;
425 e_sufp != NULL; e_sufp = e_sufp->q.tqe_next) {
426 (void)snprintf(buf,
427 sizeof(buf), "*/%s%s", page, e_sufp->s);
428 if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) {
429 found = 1;
430 break;
431 }
432 }
433 if (found)
434 goto next;
435
436 /* Try the _build key words next. */
437 e_sufp = (sufp = getlist("_build")) == NULL ?
438 NULL : sufp->list.tqh_first;
439 for (found = 0;
440 e_sufp != NULL; e_sufp = e_sufp->q.tqe_next) {
441 for (p = e_sufp->s;
442 *p != '\0' && !isspace((unsigned char)*p); ++p);
443 if (*p == '\0')
444 continue;
445 *p = '\0';
446 (void)snprintf(buf,
447 sizeof(buf), "*/%s%s", page, e_sufp->s);
448 if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) {
449 if (!f_where)
450 build_page(p + 1,
451 &pg->gl_pathv[cnt]);
452 *p = ' ';
453 found = 1;
454 break;
455 }
456 *p = ' ';
457 }
458 if (found) {
459 next: anyfound = 1;
460 if (!f_all) {
461 /* Delete any other matches. */
462 while (++cnt< pg->gl_pathc)
463 pg->gl_pathv[cnt] = "";
464 break;
465 }
466 continue;
467 }
468
469 /* It's not a man page, forget about it. */
470 pg->gl_pathv[cnt] = "";
471 }
472
473 if (anyfound && !f_all)
474 break;
475 }
476
477 /* If not found, enter onto the missing list. */
478 if (!anyfound) {
479 if ((missp = getlist("_missing")) == NULL)
480 missp = addlist("_missing");
481 if ((ep = malloc(sizeof(ENTRY))) == NULL ||
482 (ep->s = strdup(page)) == NULL) {
483 warn("malloc");
484 (void)cleanup();
485 exit(1);
486 }
487 TAILQ_INSERT_TAIL(&missp->list, ep, q);
488 }
489 return (anyfound);
490 }
491
492 /*
493 * build_page --
494 * Build a man page for display.
495 */
496 static void
497 build_page(fmt, pathp)
498 char *fmt, **pathp;
499 {
500 static int warned;
501 ENTRY *ep;
502 TAG *intmpp;
503 int fd, n;
504 char *p, *b;
505 char buf[MAXPATHLEN], cmd[MAXPATHLEN], tpath[sizeof(_PATH_TMP)];
506
507 /* Let the user know this may take awhile. */
508 if (!warned) {
509 warned = 1;
510 warnx("Formatting manual page...");
511 }
512
513 /*
514 * Historically man chdir'd to the root of the man tree.
515 * This was used in man pages that contained relative ".so"
516 * directives (including other man pages for command aliases etc.)
517 * It even went one step farther, by examining the first line
518 * of the man page and parsing the .so filename so it would
519 * make hard(?) links to the cat'ted man pages for space savings.
520 * (We don't do that here, but we could).
521 */
522
523 /* copy and find the end */
524 for (b = buf, p = *pathp; (*b++ = *p++) != '\0';)
525 continue;
526
527 /* skip the last two path components, page name and man[n] */
528 for (--b, --p, n = 2; b != buf; b--, p--)
529 if (*b == '/')
530 if (--n == 0) {
531 *b = '\0';
532 (void) chdir(buf);
533 p++;
534 break;
535 }
536
537
538 /* Add a remove-when-done list. */
539 if ((intmpp = getlist("_intmp")) == NULL)
540 intmpp = addlist("_intmp");
541
542 /* Move to the printf(3) format string. */
543 for (; *fmt && isspace((unsigned char)*fmt); ++fmt)
544 continue;
545
546 /*
547 * Get a temporary file and build a version of the file
548 * to display. Replace the old file name with the new one.
549 */
550 (void)strcpy(tpath, _PATH_TMP);
551 if ((fd = mkstemp(tpath)) == -1) {
552 warn("%s", tpath);
553 (void)cleanup();
554 exit(1);
555 }
556 (void)snprintf(buf, sizeof(buf), "%s > %s", fmt, tpath);
557 (void)snprintf(cmd, sizeof(cmd), buf, p);
558 (void)system(cmd);
559 (void)close(fd);
560 if ((*pathp = strdup(tpath)) == NULL) {
561 warn("malloc");
562 (void)cleanup();
563 exit(1);
564 }
565
566 /* Link the built file into the remove-when-done list. */
567 if ((ep = malloc(sizeof(ENTRY))) == NULL) {
568 warn("malloc");
569 (void)cleanup();
570 exit(1);
571 }
572 ep->s = *pathp;
573 TAILQ_INSERT_TAIL(&intmpp->list, ep, q);
574 }
575
576 /*
577 * how --
578 * display how information
579 */
580 static void
581 how(fname)
582 char *fname;
583 {
584 FILE *fp;
585
586 int lcnt, print;
587 char *p, buf[256];
588
589 if (!(fp = fopen(fname, "r"))) {
590 warn("%s", fname);
591 (void)cleanup();
592 exit (1);
593 }
594 #define S1 "SYNOPSIS"
595 #define S2 "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS"
596 #define D1 "DESCRIPTION"
597 #define D2 "D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN"
598 for (lcnt = print = 0; fgets(buf, sizeof(buf), fp);) {
599 if (!strncmp(buf, S1, sizeof(S1) - 1) ||
600 !strncmp(buf, S2, sizeof(S2) - 1)) {
601 print = 1;
602 continue;
603 } else if (!strncmp(buf, D1, sizeof(D1) - 1) ||
604 !strncmp(buf, D2, sizeof(D2) - 1))
605 return;
606 if (!print)
607 continue;
608 if (*buf == '\n')
609 ++lcnt;
610 else {
611 for(; lcnt; --lcnt)
612 (void)putchar('\n');
613 for (p = buf; isspace((unsigned char)*p); ++p)
614 continue;
615 (void)fputs(p, stdout);
616 }
617 }
618 (void)fclose(fp);
619 }
620
621 /*
622 * cat --
623 * cat out the file
624 */
625 static void
626 cat(fname)
627 char *fname;
628 {
629 int fd, n;
630 char buf[2048];
631
632 if ((fd = open(fname, O_RDONLY, 0)) < 0) {
633 warn("%s", fname);
634 (void)cleanup();
635 exit(1);
636 }
637 while ((n = read(fd, buf, sizeof(buf))) > 0)
638 if (write(STDOUT_FILENO, buf, n) != n) {
639 warn("write");
640 (void)cleanup();
641 exit (1);
642 }
643 if (n == -1) {
644 warn("read");
645 (void)cleanup();
646 exit(1);
647 }
648 (void)close(fd);
649 }
650
651 /*
652 * check_pager --
653 * check the user supplied page information
654 */
655 static char *
656 check_pager(name)
657 char *name;
658 {
659 char *p, *save;
660
661 /*
662 * if the user uses "more", we make it "more -s"; watch out for
663 * PAGER = "mypager /usr/ucb/more"
664 */
665 for (p = name; *p && !isspace((unsigned char)*p); ++p)
666 continue;
667 for (; p > name && *p != '/'; --p);
668 if (p != name)
669 ++p;
670
671 /* make sure it's "more", not "morex" */
672 if (!strncmp(p, "more", 4) && (!p[4] || isspace((unsigned char)p[4]))){
673 save = name;
674 /* allocate space to add the "-s" */
675 if (!(name =
676 malloc((u_int)(strlen(save) + sizeof("-s") + 1))))
677 err(1, "malloc");
678 (void)sprintf(name, "%s %s", save, "-s");
679 }
680 return(name);
681 }
682
683 /*
684 * jump --
685 * strip out flag argument and jump
686 */
687 static void
688 jump(argv, flag, name)
689 char **argv, *flag, *name;
690 {
691 char **arg;
692
693 argv[0] = name;
694 for (arg = argv + 1; *arg; ++arg)
695 if (!strcmp(*arg, flag))
696 break;
697 for (; *arg; ++arg)
698 arg[0] = arg[1];
699 execvp(name, argv);
700 (void)fprintf(stderr, "%s: Command not found.\n", name);
701 exit(1);
702 }
703
704 /*
705 * onsig --
706 * If signaled, delete the temporary files.
707 */
708 static void
709 onsig(signo)
710 int signo;
711 {
712 (void)cleanup();
713
714 (void)signal(signo, SIG_DFL);
715 (void)kill(getpid(), signo);
716
717 /* NOTREACHED */
718 exit (1);
719 }
720
721 /*
722 * cleanup --
723 * Clean up temporary files, show any error messages.
724 */
725 static int
726 cleanup()
727 {
728 TAG *intmpp, *missp;
729 ENTRY *ep;
730 int rval;
731
732 rval = 0;
733 ep = (missp = getlist("_missing")) == NULL ?
734 NULL : missp->list.tqh_first;
735 if (ep != NULL)
736 for (; ep != NULL; ep = ep->q.tqe_next) {
737 warnx("no entry for %s in the manual.", ep->s);
738 rval = 1;
739 }
740
741 ep = (intmpp = getlist("_intmp")) == NULL ?
742 NULL : intmpp->list.tqh_first;
743 for (; ep != NULL; ep = ep->q.tqe_next)
744 (void)unlink(ep->s);
745 return (rval);
746 }
747
748 /*
749 * usage --
750 * print usage message and die
751 */
752 static void
753 usage()
754 {
755 extern char *__progname;
756 (void)fprintf(stderr,
757 "Usage: %s [-achw] [-C file] [-M path] [-m path] [section] title ...\n",
758 __progname);
759 exit(1);
760 }
761