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1.38 ! deraadt 1: /* $OpenBSD: man.c,v 1.37 2008/12/30 13:14:41 jmc Exp $ */
1.1 deraadt 2: /* $NetBSD: man.c,v 1.7 1995/09/28 06:05:34 tls Exp $ */
3:
4: /*
5: * Copyright (c) 1987, 1993, 1994, 1995
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.25 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #include <sys/param.h>
34: #include <sys/queue.h>
35:
36: #include <ctype.h>
37: #include <err.h>
38: #include <errno.h>
39: #include <fcntl.h>
40: #include <fnmatch.h>
41: #include <glob.h>
42: #include <signal.h>
43: #include <stdio.h>
1.11 deraadt 44: #include <libgen.h>
1.1 deraadt 45: #include <stdlib.h>
46: #include <string.h>
47: #include <unistd.h>
48:
49: #include "config.h"
50: #include "pathnames.h"
51:
52: int f_all, f_where;
1.9 espie 53: static TAG *section; /* could be passed to cleanup() instead */
1.1 deraadt 54:
1.8 millert 55: extern char *__progname;
56:
1.20 millert 57: static void build_page(char *, char **);
58: static void cat(char *);
59: static char *check_pager(char *);
60: static int cleanup(void);
61: static void how(char *);
62: static void jump(char **, char *, char *);
63: static int manual(char *, TAG *, glob_t *);
64: static void onsig(int);
65: static void usage(void);
1.1 deraadt 66:
1.19 deraadt 67: sigset_t blocksigs;
68:
1.1 deraadt 69: int
1.21 deraadt 70: main(int argc, char *argv[])
1.1 deraadt 71: {
72: extern char *optarg;
73: extern int optind;
1.9 espie 74: TAG *defp, *defnewp, *sectnewp, *subp;
1.1 deraadt 75: ENTRY *e_defp, *e_sectp, *e_subp, *ep;
76: glob_t pg;
77: size_t len;
78: int ch, f_cat, f_how, found;
1.7 millert 79: char **ap, *cmd, *machine, *p, *p_add, *p_path, *pager, *sflag, *slashp;
1.1 deraadt 80: char *conffile, buf[MAXPATHLEN * 2];
1.11 deraadt 81:
82: if (argv[1] == NULL && strcmp(basename(__progname), "help") == 0) {
83: static char *nargv[3];
84: nargv[0] = "man";
1.15 aaron 85: nargv[1] = "help";
1.11 deraadt 86: nargv[2] = NULL;
87: argv = nargv;
88: argc = 2;
89: }
1.1 deraadt 90:
1.7 millert 91: machine = sflag = NULL;
1.1 deraadt 92: f_cat = f_how = 0;
93: conffile = p_add = p_path = NULL;
1.23 millert 94: while ((ch = getopt(argc, argv, "aC:cfhkM:m:P:s:S:w-")) != -1)
1.1 deraadt 95: switch (ch) {
96: case 'a':
97: f_all = 1;
98: break;
99: case 'C':
100: conffile = optarg;
101: break;
102: case 'c':
103: case '-': /* Deprecated. */
104: f_cat = 1;
105: break;
106: case 'h':
107: f_how = 1;
108: break;
109: case 'm':
110: p_add = optarg;
111: break;
112: case 'M':
113: case 'P': /* Backward compatibility. */
114: p_path = optarg;
115: break;
1.7 millert 116: case 's': /* SVR4 compatibility. */
117: sflag = optarg;
118: break;
119: case 'S':
120: machine = optarg;
121: break;
1.1 deraadt 122: /*
1.22 espie 123: * The -f and -k options are backward compatible
124: * ways of calling whatis(1) and apropos(1).
1.1 deraadt 125: */
126: case 'f':
127: jump(argv, "-f", "whatis");
128: /* NOTREACHED */
129: case 'k':
130: jump(argv, "-k", "apropos");
131: /* NOTREACHED */
132: case 'w':
133: f_all = f_where = 1;
134: break;
135: case '?':
136: default:
137: usage();
138: }
139: argc -= optind;
140: argv += optind;
141:
142: if (!*argv)
143: usage();
144:
1.17 millert 145: if (!f_cat && !f_how && !f_where) {
1.1 deraadt 146: if (!isatty(1))
147: f_cat = 1;
1.27 millert 148: else if ((pager = getenv("MANPAGER")) != NULL &&
149: (*pager != '\0'))
150: pager = check_pager(pager);
1.13 pjanzen 151: else if ((pager = getenv("PAGER")) != NULL && (*pager != '\0'))
1.1 deraadt 152: pager = check_pager(pager);
153: else
154: pager = _PATH_PAGER;
1.17 millert 155: }
1.1 deraadt 156:
157: /* Read the configuration file. */
158: config(conffile);
159:
1.7 millert 160: /* Get the machine type unless specified by -S. */
1.37 jmc 161: if (machine || (machine = getenv("MACHINE")))
162: for (p = machine; *p; ++p)
163: *p = tolower(*p);
164: else
1.1 deraadt 165: machine = MACHINE;
166:
167: /* If there's no _default list, create an empty one. */
168: if ((defp = getlist("_default")) == NULL)
169: defp = addlist("_default");
170:
171: /*
172: * 1: If the user specified a MANPATH variable, or set the -M
173: * option, we replace the _default list with the user's list,
174: * appending the entries in the _subdir list and the machine.
175: */
176: if (p_path == NULL)
177: p_path = getenv("MANPATH");
178: if (p_path != NULL) {
1.29 otto 179: while ((e_defp = TAILQ_FIRST(&defp->list)) != NULL) {
1.1 deraadt 180: free(e_defp->s);
181: TAILQ_REMOVE(&defp->list, e_defp, q);
182: }
183: for (p = strtok(p_path, ":");
184: p != NULL; p = strtok(NULL, ":")) {
185: slashp = p[strlen(p) - 1] == '/' ? "" : "/";
186: e_subp = (subp = getlist("_subdir")) == NULL ?
1.29 otto 187: NULL : TAILQ_FIRST(&subp->list);
188: for (; e_subp != NULL; e_subp = TAILQ_NEXT(e_subp, q)) {
1.1 deraadt 189: (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}",
190: p, slashp, e_subp->s, machine);
191: if ((ep = malloc(sizeof(ENTRY))) == NULL ||
192: (ep->s = strdup(buf)) == NULL)
193: err(1, NULL);
194: TAILQ_INSERT_TAIL(&defp->list, ep, q);
195: }
196: }
197: }
198:
199: /*
200: * 2: If the user did not specify MANPATH, -M or a section, rewrite
201: * the _default list to include the _subdir list and the machine.
202: */
1.7 millert 203: if (sflag == NULL && argv[1] == NULL)
1.1 deraadt 204: section = NULL;
1.7 millert 205: else {
206: if (sflag != NULL && (section = getlist(sflag)) == NULL)
207: errx(1, "unknown manual section `%s'", sflag);
208: else if (sflag == NULL && (section = getlist(*argv)) != NULL)
209: ++argv;
210: }
1.1 deraadt 211: if (p_path == NULL && section == NULL) {
212: defnewp = addlist("_default_new");
1.29 otto 213: e_defp = TAILQ_FIRST(&defp->list);
214: for (; e_defp != NULL; e_defp = TAILQ_NEXT(e_defp, q)) {
1.1 deraadt 215: slashp =
216: e_defp->s[strlen(e_defp->s) - 1] == '/' ? "" : "/";
217: e_subp = (subp = getlist("_subdir")) == NULL ?
1.29 otto 218: NULL : TAILQ_FIRST(&subp->list);
219: for (; e_subp != NULL; e_subp = TAILQ_NEXT(e_subp, q)) {
1.1 deraadt 220: (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}",
221: e_defp->s, slashp, e_subp->s, machine);
222: if ((ep = malloc(sizeof(ENTRY))) == NULL ||
223: (ep->s = strdup(buf)) == NULL)
224: err(1, NULL);
225: TAILQ_INSERT_TAIL(&defnewp->list, ep, q);
226: }
227: }
228: defp = getlist("_default");
1.29 otto 229: while ((e_defp = TAILQ_FIRST(&defp->list)) != NULL) {
1.1 deraadt 230: free(e_defp->s);
231: TAILQ_REMOVE(&defp->list, e_defp, q);
232: }
233: free(defp->s);
234: TAILQ_REMOVE(&head, defp, q);
235: defnewp = getlist("_default_new");
236: free(defnewp->s);
237: defnewp->s = "_default";
238: defp = defnewp;
239: }
240:
241: /*
242: * 3: If the user set the -m option, insert the user's list before
243: * whatever list we have, again appending the _subdir list and
1.17 millert 244: * the machine.
1.1 deraadt 245: */
1.3 michaels 246: if (p_add != NULL) {
247: e_sectp = NULL;
1.1 deraadt 248: for (p = strtok(p_add, ":"); p != NULL; p = strtok(NULL, ":")) {
249: slashp = p[strlen(p) - 1] == '/' ? "" : "/";
250: e_subp = (subp = getlist("_subdir")) == NULL ?
1.29 otto 251: NULL : TAILQ_FIRST(&subp->list);
252: for (; e_subp != NULL; e_subp = TAILQ_NEXT(e_subp, q)) {
1.1 deraadt 253: (void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,}",
254: p, slashp, e_subp->s, machine);
255: if ((ep = malloc(sizeof(ENTRY))) == NULL ||
256: (ep->s = strdup(buf)) == NULL)
257: err(1, NULL);
1.30 otto 258:
1.21 deraadt 259: if (e_sectp == NULL)
1.30 otto 260: TAILQ_INSERT_HEAD(&defp->list, ep, q);
261: else
262: TAILQ_INSERT_AFTER(&defp->list, e_sectp,
263: ep, q);
264: e_sectp = ep;
1.1 deraadt 265: }
1.3 michaels 266: }
1.17 millert 267: }
1.1 deraadt 268: /*
269: * 4: If no -m was specified, and a section was, rewrite the section's
270: * paths (if they have a trailing slash) to append the _subdir list
271: * and the machine. This then becomes the _default list.
272: */
273: if (p_add == NULL && section != NULL) {
274: sectnewp = addlist("_section_new");
1.29 otto 275: TAILQ_FOREACH(e_sectp, §ion->list, q) {
1.1 deraadt 276: if (e_sectp->s[strlen(e_sectp->s) - 1] != '/') {
277: (void)snprintf(buf, sizeof(buf),
278: "%s{/%s,}", e_sectp->s, machine);
279: if ((ep = malloc(sizeof(ENTRY))) == NULL ||
280: (ep->s = strdup(buf)) == NULL)
281: err(1, NULL);
282: TAILQ_INSERT_TAIL(§newp->list, ep, q);
283: continue;
284: }
285: e_subp = (subp = getlist("_subdir")) == NULL ?
1.29 otto 286: NULL : TAILQ_FIRST(&subp->list);
287: for (; e_subp != NULL; e_subp = TAILQ_NEXT(e_subp, q)) {
1.1 deraadt 288: (void)snprintf(buf, sizeof(buf), "%s%s{/%s,}",
289: e_sectp->s, e_subp->s, machine);
290: if ((ep = malloc(sizeof(ENTRY))) == NULL ||
291: (ep->s = strdup(buf)) == NULL)
292: err(1, NULL);
293: TAILQ_INSERT_TAIL(§newp->list, ep, q);
294: }
295: }
296: sectnewp->s = section->s;
297: defp = sectnewp;
298: TAILQ_REMOVE(&head, section, q);
299: }
300:
301: /*
302: * 5: Search for the files. Set up an interrupt handler, so the
303: * temporary files go away.
304: */
305: (void)signal(SIGINT, onsig);
306: (void)signal(SIGHUP, onsig);
307:
1.19 deraadt 308: sigemptyset(&blocksigs);
309: sigaddset(&blocksigs, SIGINT);
310: sigaddset(&blocksigs, SIGHUP);
311:
1.1 deraadt 312: memset(&pg, 0, sizeof(pg));
313: for (found = 0; *argv; ++argv)
314: if (manual(*argv, defp, &pg))
315: found = 1;
316:
317: /* 6: If nothing found, we're done. */
318: if (!found) {
319: (void)cleanup();
320: exit (1);
321: }
322:
323: /* 7: If it's simple, display it fast. */
324: if (f_cat) {
325: for (ap = pg.gl_pathv; *ap != NULL; ++ap) {
326: if (**ap == '\0')
327: continue;
328: cat(*ap);
329: }
330: exit (cleanup());
331: }
332: if (f_how) {
333: for (ap = pg.gl_pathv; *ap != NULL; ++ap) {
334: if (**ap == '\0')
335: continue;
336: how(*ap);
337: }
338: exit(cleanup());
339: }
340: if (f_where) {
341: for (ap = pg.gl_pathv; *ap != NULL; ++ap) {
342: if (**ap == '\0')
343: continue;
1.17 millert 344: (void)puts(*ap);
1.1 deraadt 345: }
346: exit(cleanup());
347: }
1.17 millert 348:
1.1 deraadt 349: /*
350: * 8: We display things in a single command; build a list of things
351: * to display.
352: */
353: for (ap = pg.gl_pathv, len = strlen(pager) + 1; *ap != NULL; ++ap) {
354: if (**ap == '\0')
355: continue;
356: len += strlen(*ap) + 1;
357: }
358: if ((cmd = malloc(len)) == NULL) {
359: warn(NULL);
360: (void)cleanup();
361: exit(1);
362: }
363: p = cmd;
364: len = strlen(pager);
1.17 millert 365: memcpy(p, pager, len);
1.1 deraadt 366: p += len;
367: *p++ = ' ';
368: for (ap = pg.gl_pathv; *ap != NULL; ++ap) {
369: if (**ap == '\0')
370: continue;
371: len = strlen(*ap);
1.17 millert 372: memcpy(p, *ap, len);
1.1 deraadt 373: p += len;
374: *p++ = ' ';
375: }
1.12 deraadt 376: *--p = '\0';
1.1 deraadt 377:
378: /* Use system(3) in case someone's pager is "pager arg1 arg2". */
379: (void)system(cmd);
380:
381: exit(cleanup());
382: }
383:
384: /*
385: * manual --
386: * Search the manuals for the pages.
387: */
388: static int
1.26 deraadt 389: manual(char *page, TAG *tag, glob_t *pg)
1.1 deraadt 390: {
391: ENTRY *ep, *e_sufp, *e_tag;
392: TAG *missp, *sufp;
393: int anyfound, cnt, found;
1.6 deraadt 394: char *p, buf[MAXPATHLEN];
1.1 deraadt 395:
396: anyfound = 0;
397: buf[0] = '*';
398:
399: /* For each element in the list... */
1.29 otto 400: e_tag = tag == NULL ? NULL : TAILQ_FIRST(&tag->list);
401: for (; e_tag != NULL; e_tag = TAILQ_NEXT(e_tag, q)) {
1.1 deraadt 402: (void)snprintf(buf, sizeof(buf), "%s/%s.*", e_tag->s, page);
403: if (glob(buf,
404: GLOB_APPEND | GLOB_BRACE | GLOB_NOSORT | GLOB_QUOTE,
405: NULL, pg)) {
406: warn("globbing");
407: (void)cleanup();
408: exit(1);
409: }
410: if (pg->gl_matchc == 0)
411: continue;
412:
413: /* Find out if it's really a man page. */
414: for (cnt = pg->gl_pathc - pg->gl_matchc;
415: cnt < pg->gl_pathc; ++cnt) {
416:
417: /*
418: * Try the _suffix key words first.
419: *
420: * XXX
421: * Older versions of man.conf didn't have the suffix
422: * key words, it was assumed that everything was a .0.
423: * We just test for .0 first, it's fast and probably
424: * going to hit.
425: */
426: (void)snprintf(buf, sizeof(buf), "*/%s.0", page);
427: if (!fnmatch(buf, pg->gl_pathv[cnt], 0))
428: goto next;
429:
430: e_sufp = (sufp = getlist("_suffix")) == NULL ?
1.29 otto 431: NULL : TAILQ_FIRST(&sufp->list);
1.1 deraadt 432: for (found = 0;
1.29 otto 433: e_sufp != NULL; e_sufp = TAILQ_NEXT(e_sufp, q)) {
1.1 deraadt 434: (void)snprintf(buf,
435: sizeof(buf), "*/%s%s", page, e_sufp->s);
436: if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) {
437: found = 1;
438: break;
439: }
440: }
441: if (found)
442: goto next;
443:
444: /* Try the _build key words next. */
445: e_sufp = (sufp = getlist("_build")) == NULL ?
1.29 otto 446: NULL : TAILQ_FIRST(&sufp->list);
1.1 deraadt 447: for (found = 0;
1.29 otto 448: e_sufp != NULL; e_sufp = TAILQ_NEXT(e_sufp, q)) {
1.1 deraadt 449: for (p = e_sufp->s;
450: *p != '\0' && !isspace(*p); ++p);
451: if (*p == '\0')
452: continue;
453: *p = '\0';
454: (void)snprintf(buf,
455: sizeof(buf), "*/%s%s", page, e_sufp->s);
456: if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) {
457: if (!f_where)
458: build_page(p + 1,
459: &pg->gl_pathv[cnt]);
460: *p = ' ';
461: found = 1;
462: break;
463: }
464: *p = ' ';
465: }
466: if (found) {
467: next: anyfound = 1;
468: if (!f_all) {
469: /* Delete any other matches. */
470: while (++cnt< pg->gl_pathc)
471: pg->gl_pathv[cnt] = "";
472: break;
473: }
474: continue;
475: }
476:
477: /* It's not a man page, forget about it. */
478: pg->gl_pathv[cnt] = "";
479: }
480:
481: if (anyfound && !f_all)
482: break;
483: }
484:
485: /* If not found, enter onto the missing list. */
486: if (!anyfound) {
1.19 deraadt 487: sigset_t osigs;
488:
489: sigprocmask(SIG_BLOCK, &blocksigs, &osigs);
490:
1.1 deraadt 491: if ((missp = getlist("_missing")) == NULL)
492: missp = addlist("_missing");
493: if ((ep = malloc(sizeof(ENTRY))) == NULL ||
494: (ep->s = strdup(page)) == NULL) {
495: warn(NULL);
496: (void)cleanup();
497: exit(1);
498: }
499: TAILQ_INSERT_TAIL(&missp->list, ep, q);
1.19 deraadt 500: sigprocmask(SIG_SETMASK, &osigs, NULL);
1.1 deraadt 501: }
502: return (anyfound);
503: }
504:
1.17 millert 505: /*
1.1 deraadt 506: * build_page --
507: * Build a man page for display.
508: */
509: static void
1.21 deraadt 510: build_page(char *fmt, char **pathp)
1.1 deraadt 511: {
512: static int warned;
513: ENTRY *ep;
514: TAG *intmpp;
515: int fd, n;
516: char *p, *b;
1.4 deraadt 517: char buf[MAXPATHLEN], cmd[MAXPATHLEN], tpath[MAXPATHLEN];
1.19 deraadt 518: sigset_t osigs;
1.1 deraadt 519:
520: /* Let the user know this may take awhile. */
521: if (!warned) {
522: warned = 1;
523: warnx("Formatting manual page...");
524: }
525:
526: /*
1.17 millert 527: * Historically man chdir'd to the root of the man tree.
1.1 deraadt 528: * This was used in man pages that contained relative ".so"
529: * directives (including other man pages for command aliases etc.)
530: * It even went one step farther, by examining the first line
531: * of the man page and parsing the .so filename so it would
532: * make hard(?) links to the cat'ted man pages for space savings.
533: * (We don't do that here, but we could).
534: */
1.17 millert 535:
1.1 deraadt 536: /* copy and find the end */
537: for (b = buf, p = *pathp; (*b++ = *p++) != '\0';)
538: continue;
1.17 millert 539:
1.1 deraadt 540: /* skip the last two path components, page name and man[n] */
541: for (--b, n = 2; b != buf; b--)
542: if (*b == '/')
543: if (--n == 0) {
544: *b = '\0';
545: (void) chdir(buf);
546: }
547:
548:
549: /* Add a remove-when-done list. */
1.19 deraadt 550: sigprocmask(SIG_BLOCK, &blocksigs, &osigs);
1.1 deraadt 551: if ((intmpp = getlist("_intmp")) == NULL)
552: intmpp = addlist("_intmp");
1.19 deraadt 553: sigprocmask(SIG_SETMASK, &osigs, NULL);
1.1 deraadt 554:
555: /* Move to the printf(3) format string. */
1.16 deraadt 556: for (; *fmt && isspace(*fmt); ++fmt)
557: ;
1.1 deraadt 558:
559: /*
560: * Get a temporary file and build a version of the file
561: * to display. Replace the old file name with the new one.
562: */
1.18 deraadt 563: (void)strlcpy(tpath, _PATH_TMPFILE, sizeof(tpath));
1.1 deraadt 564: if ((fd = mkstemp(tpath)) == -1) {
565: warn("%s", tpath);
566: (void)cleanup();
567: exit(1);
568: }
569: (void)snprintf(buf, sizeof(buf), "%s > %s", fmt, tpath);
570: (void)snprintf(cmd, sizeof(cmd), buf, *pathp);
571: (void)system(cmd);
572: (void)close(fd);
573: if ((*pathp = strdup(tpath)) == NULL) {
574: warn(NULL);
575: (void)cleanup();
576: exit(1);
577: }
578:
579: /* Link the built file into the remove-when-done list. */
580: if ((ep = malloc(sizeof(ENTRY))) == NULL) {
581: warn(NULL);
582: (void)cleanup();
583: exit(1);
584: }
585: ep->s = *pathp;
586: TAILQ_INSERT_TAIL(&intmpp->list, ep, q);
587: }
588:
589: /*
590: * how --
591: * display how information
592: */
593: static void
1.21 deraadt 594: how(char *fname)
1.1 deraadt 595: {
596: FILE *fp;
597:
598: int lcnt, print;
599: char *p, buf[256];
600:
601: if (!(fp = fopen(fname, "r"))) {
602: warn("%s", fname);
603: (void)cleanup();
604: exit (1);
605: }
606: #define S1 "SYNOPSIS"
607: #define S2 "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS"
608: for (lcnt = print = 0; fgets(buf, sizeof(buf), fp);) {
609: if (!strncmp(buf, S1, sizeof(S1) - 1) ||
610: !strncmp(buf, S2, sizeof(S2) - 1)) {
611: print = 1;
612: continue;
1.34 otto 613: } else if (print) {
614: char *p = buf;
615: int allcaps = 0;
616:
617: while (*p) {
618: if (!allcaps && isalpha(*p))
619: allcaps = 1;
620: if (isalpha(*p) && !isupper(*p)) {
621: allcaps = 0;
622: break;
623: }
624: p++;
625: }
626: if (allcaps) {
627: (void)fclose(fp);
628: return;
629: }
1.32 jasper 630: }
1.1 deraadt 631: if (!print)
632: continue;
633: if (*buf == '\n')
634: ++lcnt;
635: else {
1.17 millert 636: while (lcnt) {
637: --lcnt;
1.1 deraadt 638: (void)putchar('\n');
1.17 millert 639: }
640: for (p = buf; isspace(*p); ++p)
641: ;
1.1 deraadt 642: (void)fputs(p, stdout);
643: }
644: }
645: (void)fclose(fp);
646: }
647:
648: /*
649: * cat --
650: * cat out the file
651: */
652: static void
1.21 deraadt 653: cat(char *fname)
1.1 deraadt 654: {
655: int fd, n;
656: char buf[2048];
657:
658: if ((fd = open(fname, O_RDONLY, 0)) < 0) {
659: warn("%s", fname);
660: (void)cleanup();
661: exit(1);
662: }
663: while ((n = read(fd, buf, sizeof(buf))) > 0)
664: if (write(STDOUT_FILENO, buf, n) != n) {
665: warn("write");
666: (void)cleanup();
667: exit (1);
668: }
669: if (n == -1) {
670: warn("read");
671: (void)cleanup();
672: exit(1);
673: }
674: (void)close(fd);
675: }
676:
677: /*
678: * check_pager --
679: * check the user supplied page information
680: */
681: static char *
1.21 deraadt 682: check_pager(char *name)
1.1 deraadt 683: {
684: char *p, *save;
685:
686: /*
687: * if the user uses "more", we make it "more -s"; watch out for
1.17 millert 688: * PAGER = "mypager /usr/bin/more"
1.1 deraadt 689: */
1.16 deraadt 690: for (p = name; *p && !isspace(*p); ++p)
691: ;
692: for (; p > name && *p != '/'; --p)
693: ;
1.1 deraadt 694: if (p != name)
695: ++p;
696:
697: /* make sure it's "more", not "morex" */
1.27 millert 698: if (!strncmp(p, "more", 4) && (p[4] == '\0' || isspace(p[4]))){
1.1 deraadt 699: save = name;
700: /* allocate space to add the "-s" */
1.31 deraadt 701: if (asprintf(&name, "%s -s", save) == -1)
702: err(1, "asprintf");
1.1 deraadt 703: }
704: return(name);
705: }
706:
707: /*
708: * jump --
709: * strip out flag argument and jump
710: */
711: static void
1.21 deraadt 712: jump(char **argv, char *flag, char *name)
1.1 deraadt 713: {
714: char **arg;
715:
716: argv[0] = name;
717: for (arg = argv + 1; *arg; ++arg)
718: if (!strcmp(*arg, flag))
719: break;
720: for (; *arg; ++arg)
721: arg[0] = arg[1];
722: execvp(name, argv);
723: (void)fprintf(stderr, "%s: Command not found.\n", name);
724: exit(1);
725: }
726:
1.17 millert 727: /*
1.1 deraadt 728: * onsig --
729: * If signaled, delete the temporary files.
730: */
731: static void
1.21 deraadt 732: onsig(int signo)
1.1 deraadt 733: {
1.21 deraadt 734: (void)cleanup(); /* XXX signal race */
1.1 deraadt 735:
736: (void)signal(signo, SIG_DFL);
737: (void)kill(getpid(), signo);
738:
739: /* NOTREACHED */
1.19 deraadt 740: _exit(1);
1.1 deraadt 741: }
742:
743: /*
744: * cleanup --
745: * Clean up temporary files, show any error messages.
746: */
747: static int
1.21 deraadt 748: cleanup(void)
1.1 deraadt 749: {
750: TAG *intmpp, *missp;
751: ENTRY *ep;
752: int rval;
753:
754: rval = 0;
755: ep = (missp = getlist("_missing")) == NULL ?
1.29 otto 756: NULL : TAILQ_FIRST(&missp->list);
1.1 deraadt 757: if (ep != NULL)
1.29 otto 758: for (; ep != NULL; ep = TAILQ_NEXT(ep, q)) {
1.9 espie 759: if (section)
760: warnx("no entry for %s in section %s of the manual.",
761: ep->s, section->s);
762: else
763: warnx("no entry for %s in the manual.", ep->s);
1.1 deraadt 764: rval = 1;
765: }
766:
767: ep = (intmpp = getlist("_intmp")) == NULL ?
1.29 otto 768: NULL : TAILQ_FIRST(&intmpp->list);
769: for (; ep != NULL; ep = TAILQ_NEXT(ep, q))
1.1 deraadt 770: (void)unlink(ep->s);
771: return (rval);
772: }
773:
774: /*
775: * usage --
776: * print usage message and die
777: */
778: static void
1.21 deraadt 779: usage(void)
1.1 deraadt 780: {
1.8 millert 781: (void)fprintf(stderr, "usage: %s [-achw] [-C file] [-M path] [-m path] "
1.35 sobrado 782: "[-S subsection] [-s section]\n\t [section] name ...\n",
1.28 jmc 783: __progname);
1.36 jmc 784: (void)fprintf(stderr, " %s -f command ...\n", __progname);
785: (void)fprintf(stderr, " %s -k keyword ...\n", __progname);
1.1 deraadt 786: exit(1);
787: }