1 /* $Id: main.c,v 1.364 2025/09/24 21:30:20 schwarze Exp $ */
2 /*
3 * Copyright (c) 2010-2012,2014-2021,2025 Ingo Schwarze <schwarze@openbsd.org>
4 * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
5 * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 *
19 * Main program for mandoc(1), man(1), apropos(1), whatis(1), and help(1).
20 */
21 #include "config.h"
22
23 #include <sys/types.h>
24 #include <sys/ioctl.h>
25 #include <sys/param.h> /* MACHINE */
26 #include <sys/stat.h>
27 #include <sys/wait.h>
28
29 #include <assert.h>
30 #include <ctype.h>
31 #if HAVE_ERR
32 #include <err.h>
33 #endif
34 #include <errno.h>
35 #include <fcntl.h>
36 #include <glob.h>
37 #include <limits.h>
38 #if HAVE_SANDBOX_INIT
39 #include <sandbox.h>
40 #endif
41 #include <signal.h>
42 #include <stdio.h>
43 #include <stdint.h>
44 #include <stdlib.h>
45 #include <string.h>
46 #include <termios.h>
47 #include <time.h>
48 #include <unistd.h>
49
50 #include "mandoc_aux.h"
51 #include "mandoc.h"
52 #include "mandoc_xr.h"
53 #include "roff.h"
54 #include "mdoc.h"
55 #include "man.h"
56 #include "mandoc_parse.h"
57 #include "tag.h"
58 #include "term_tag.h"
59 #include "main.h"
60 #include "manconf.h"
61 #include "mansearch.h"
62
63 enum outmode {
64 OUTMODE_DEF = 0,
65 OUTMODE_FLN,
66 OUTMODE_LST,
67 OUTMODE_ALL,
68 OUTMODE_ONE
69 };
70
71 enum outt {
72 OUTT_ASCII = 0, /* -Tascii */
73 OUTT_LOCALE, /* -Tlocale */
74 OUTT_UTF8, /* -Tutf8 */
75 OUTT_TREE, /* -Ttree */
76 OUTT_MAN, /* -Tman */
77 OUTT_HTML, /* -Thtml */
78 OUTT_MARKDOWN, /* -Tmarkdown */
79 OUTT_LINT, /* -Tlint */
80 OUTT_PS, /* -Tps */
81 OUTT_PDF /* -Tpdf */
82 };
83
84 struct outstate {
85 struct tag_files *tag_files; /* Tagging state variables. */
86 void *outdata; /* data for output */
87 int use_pager;
88 int wstop; /* stop after a file with a warning */
89 int had_output; /* Some output was generated. */
90 enum outt outtype; /* which output to use */
91 };
92
93
94 int mandocdb(int, char *[]);
95
96 static void check_xr(struct manpaths *);
97 static void fs_append(char **, size_t, int,
98 size_t, const char *, enum form,
99 struct manpage **, size_t *);
100 static int fs_lookup(const struct manpaths *, size_t,
101 const char *, const char *, const char *,
102 struct manpage **, size_t *);
103 static int fs_search(const struct mansearch *,
104 const struct manpaths *, const char *,
105 struct manpage **, size_t *);
106 static void glob_esc(char **, const char *, const char *);
107 static void outdata_alloc(struct outstate *, struct manoutput *);
108 static void parse(struct mparse *, int, const char *,
109 struct outstate *, struct manconf *);
110 static void passthrough(int, int);
111 static void process_onefile(struct mparse *, struct manpage *,
112 struct outstate *, struct manconf *);
113 static void run_pager(struct outstate *, char *);
114 static pid_t spawn_pager(struct outstate *, char *);
115 static void usage(enum argmode) __attribute__((__noreturn__));
116 static int woptions(char *, enum mandoc_os *, int *);
117
118 static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
119 static char help_arg[] = "help";
120 static char *help_argv[] = {help_arg, NULL};
121
122
123 int
main(int argc,char * argv[])124 main(int argc, char *argv[])
125 {
126 struct manconf conf; /* Manpaths and output options. */
127 struct outstate outst; /* Output state. */
128 struct winsize ws; /* Result of ioctl(TIOCGWINSZ). */
129 struct mansearch search; /* Search options. */
130 struct manpage *res; /* Complete list of search results. */
131 struct manpage *resn; /* Search results for one name. */
132 struct mparse *mp; /* Opaque parser object. */
133 const char *conf_file; /* -C: alternate config file. */
134 const char *os_s; /* -I: Operating system for display. */
135 const char *progname, *sec, *ep;
136 char *defpaths; /* -M: override manpaths. */
137 char *auxpaths; /* -m: additional manpaths. */
138 char *oarg; /* -O: output option string. */
139 char *tagarg; /* -O tag: default value. */
140 unsigned char *uc;
141 size_t ressz; /* Number of elements in res[]. */
142 size_t resnsz; /* Number of elements in resn[]. */
143 size_t i, ib, ssz;
144 int options; /* Parser options. */
145 int show_usage; /* Invalid argument: give up. */
146 int prio, best_prio;
147 int c;
148 enum mandoc_os os_e; /* Check base system conventions. */
149 enum outmode outmode; /* According to command line. */
150
151 #if DEBUG_MEMORY
152 mandoc_dbg_init(argc, argv);
153 #endif
154 #if HAVE_PROGNAME
155 progname = getprogname();
156 #else
157 if (argc < 1)
158 progname = "mandoc";
159 else if ((progname = strrchr(argv[0], '/')) == NULL)
160 progname = argv[0];
161 else
162 ++progname;
163 setprogname(progname);
164 #endif
165
166 mandoc_msg_setoutfile(stderr);
167 if (strncmp(progname, "mandocdb", 8) == 0 ||
168 strcmp(progname, BINM_MAKEWHATIS) == 0)
169 return mandocdb(argc, argv);
170
171 #if HAVE_PLEDGE
172 if (pledge("stdio rpath wpath cpath tmppath tty proc exec", NULL) == -1) {
173 mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
174 return mandoc_msg_getrc();
175 }
176 #endif
177 #if HAVE_SANDBOX_INIT
178 if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
179 errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
180 #endif
181
182 /* Search options. */
183
184 memset(&conf, 0, sizeof(conf));
185 conf_file = NULL;
186 defpaths = auxpaths = NULL;
187
188 memset(&search, 0, sizeof(struct mansearch));
189 search.outkey = "Nd";
190 oarg = NULL;
191
192 if (strcmp(progname, BINM_MAN) == 0)
193 search.argmode = ARG_NAME;
194 else if (strcmp(progname, BINM_APROPOS) == 0)
195 search.argmode = ARG_EXPR;
196 else if (strcmp(progname, BINM_WHATIS) == 0)
197 search.argmode = ARG_WORD;
198 else if (strncmp(progname, "help", 4) == 0)
199 search.argmode = ARG_NAME;
200 else
201 search.argmode = ARG_FILE;
202
203 /* Parser options. */
204
205 options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
206 os_e = MANDOC_OS_OTHER;
207 os_s = NULL;
208
209 /* Formatter options. */
210
211 memset(&outst, 0, sizeof(outst));
212 outst.tag_files = NULL;
213 outst.outtype = OUTT_LOCALE;
214 outst.use_pager = 1;
215
216 show_usage = 0;
217 outmode = OUTMODE_DEF;
218
219 while ((c = getopt(argc, argv,
220 "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
221 if (c == 'i' && search.argmode == ARG_EXPR) {
222 optind--;
223 break;
224 }
225 switch (c) {
226 case 'a':
227 outmode = OUTMODE_ALL;
228 break;
229 case 'C':
230 conf_file = optarg;
231 break;
232 case 'c':
233 outst.use_pager = 0;
234 break;
235 case 'f':
236 search.argmode = ARG_WORD;
237 break;
238 case 'h':
239 conf.output.synopsisonly = 1;
240 outst.use_pager = 0;
241 outmode = OUTMODE_ALL;
242 break;
243 case 'I':
244 if (strncmp(optarg, "os=", 3) != 0) {
245 mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
246 "-I %s", optarg);
247 return mandoc_msg_getrc();
248 }
249 if (os_s != NULL) {
250 mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
251 "-I %s", optarg);
252 return mandoc_msg_getrc();
253 }
254 os_s = optarg + 3;
255 break;
256 case 'K':
257 options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
258 if (strcmp(optarg, "utf-8") == 0)
259 options |= MPARSE_UTF8;
260 else if (strcmp(optarg, "iso-8859-1") == 0)
261 options |= MPARSE_LATIN1;
262 else if (strcmp(optarg, "us-ascii") != 0) {
263 mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
264 "-K %s", optarg);
265 return mandoc_msg_getrc();
266 }
267 break;
268 case 'k':
269 search.argmode = ARG_EXPR;
270 break;
271 case 'l':
272 search.argmode = ARG_FILE;
273 outmode = OUTMODE_ALL;
274 break;
275 case 'M':
276 #ifdef __FreeBSD__
277 defpaths = strdup(optarg);
278 if (defpaths == NULL)
279 err(1, "strdup");
280 #else
281 defpaths = optarg;
282 #endif
283 break;
284 case 'm':
285 auxpaths = optarg;
286 break;
287 case 'O':
288 oarg = optarg;
289 break;
290 case 'S':
291 search.arch = optarg;
292 break;
293 case 's':
294 search.sec = optarg;
295 break;
296 case 'T':
297 if (strcmp(optarg, "ascii") == 0)
298 outst.outtype = OUTT_ASCII;
299 else if (strcmp(optarg, "lint") == 0) {
300 outst.outtype = OUTT_LINT;
301 mandoc_msg_setoutfile(stdout);
302 mandoc_msg_setmin(MANDOCERR_BASE);
303 } else if (strcmp(optarg, "tree") == 0)
304 outst.outtype = OUTT_TREE;
305 else if (strcmp(optarg, "man") == 0)
306 outst.outtype = OUTT_MAN;
307 else if (strcmp(optarg, "html") == 0)
308 outst.outtype = OUTT_HTML;
309 else if (strcmp(optarg, "markdown") == 0)
310 outst.outtype = OUTT_MARKDOWN;
311 else if (strcmp(optarg, "utf8") == 0)
312 outst.outtype = OUTT_UTF8;
313 else if (strcmp(optarg, "locale") == 0)
314 outst.outtype = OUTT_LOCALE;
315 else if (strcmp(optarg, "ps") == 0)
316 outst.outtype = OUTT_PS;
317 else if (strcmp(optarg, "pdf") == 0)
318 outst.outtype = OUTT_PDF;
319 else {
320 mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
321 "-T %s", optarg);
322 return mandoc_msg_getrc();
323 }
324 break;
325 case 'W':
326 if (woptions(optarg, &os_e, &outst.wstop) == -1)
327 return mandoc_msg_getrc();
328 break;
329 case 'w':
330 outmode = OUTMODE_FLN;
331 break;
332 default:
333 show_usage = 1;
334 break;
335 }
336 }
337
338 if (show_usage)
339 usage(search.argmode);
340
341 /* Postprocess options. */
342
343 switch (outmode) {
344 case OUTMODE_DEF:
345 switch (search.argmode) {
346 case ARG_FILE:
347 outmode = OUTMODE_ALL;
348 outst.use_pager = 0;
349 break;
350 case ARG_NAME:
351 outmode = OUTMODE_ONE;
352 break;
353 default:
354 outmode = OUTMODE_LST;
355 break;
356 }
357 break;
358 case OUTMODE_FLN:
359 if (search.argmode == ARG_FILE)
360 outmode = OUTMODE_ALL;
361 break;
362 case OUTMODE_ALL:
363 break;
364 case OUTMODE_LST:
365 case OUTMODE_ONE:
366 abort();
367 }
368
369 if (oarg != NULL) {
370 if (outmode == OUTMODE_LST)
371 search.outkey = oarg;
372 else {
373 while (oarg != NULL) {
374 if (manconf_output(&conf.output,
375 strsep(&oarg, ","), 0) == -1)
376 return mandoc_msg_getrc();
377 }
378 }
379 }
380
381 if (outst.outtype != OUTT_TREE || conf.output.noval == 0)
382 options |= MPARSE_VALIDATE;
383
384 if (outmode == OUTMODE_FLN ||
385 outmode == OUTMODE_LST ||
386 (conf.output.outfilename == NULL &&
387 conf.output.tagfilename == NULL &&
388 isatty(STDOUT_FILENO) == 0))
389 outst.use_pager = 0;
390
391 if (outst.use_pager &&
392 (conf.output.width == 0 || conf.output.indent == 0) &&
393 ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
394 ws.ws_col > 1) {
395 if (conf.output.width == 0 && ws.ws_col < 79)
396 conf.output.width = ws.ws_col - 1;
397 if (conf.output.indent == 0 && ws.ws_col < 66)
398 conf.output.indent = 3;
399 }
400
401 #if HAVE_PLEDGE
402 if (outst.use_pager == 0)
403 c = pledge("stdio rpath", NULL);
404 else if (conf.output.outfilename != NULL ||
405 conf.output.tagfilename != NULL)
406 c = pledge("stdio rpath wpath cpath", NULL);
407 else
408 c = pledge("stdio rpath tmppath tty proc exec", NULL);
409 if (c == -1) {
410 mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
411 return mandoc_msg_getrc();
412 }
413 #endif
414
415 /* Parse arguments. */
416
417 if (argc > 0) {
418 argc -= optind;
419 argv += optind;
420 }
421
422 /*
423 * Quirks for help(1) and man(1),
424 * in particular for a section argument without -s.
425 */
426
427 if (search.argmode == ARG_NAME) {
428 if (*progname == 'h') {
429 if (argc == 0) {
430 argv = help_argv;
431 argc = 1;
432 }
433 } else if (argc > 1 &&
434 ((uc = (unsigned char *)argv[0]) != NULL) &&
435 ((isdigit(uc[0]) && (uc[1] == '\0' ||
436 isalpha(uc[1]))) ||
437 (uc[0] == 'n' && uc[1] == '\0'))) {
438 search.sec = (char *)uc;
439 argv++;
440 argc--;
441 }
442 if (search.arch == NULL)
443 search.arch = getenv("MACHINE");
444 #ifdef MACHINE
445 if (search.arch == NULL)
446 search.arch = MACHINE;
447 #endif
448 if (outmode == OUTMODE_ONE)
449 search.firstmatch = 1;
450 }
451
452 /*
453 * Use the first argument for -O tag in addition to
454 * using it as a search term for man(1) or apropos(1).
455 */
456
457 if (conf.output.tag != NULL && *conf.output.tag == '\0') {
458 tagarg = argc > 0 && search.argmode == ARG_EXPR ?
459 strchr(*argv, '=') : NULL;
460 conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
461 }
462
463 if (search.argmode != ARG_FILE ||
464 mandoc_msg_getmin() == MANDOCERR_STYLE)
465 #ifdef __FreeBSD__
466 {
467 /*
468 * Use manpath(1) to populate defpaths if -M is not specified.
469 * Don't treat any failures as fatal.
470 */
471 if (defpaths == NULL) {
472 FILE *fp;
473 size_t linecap = 0;
474 ssize_t linelen;
475
476 if ((fp = popen("/usr/bin/manpath -q", "r")) != NULL) {
477 if ((linelen = getline(&defpaths,
478 &linecap, fp)) > 0) {
479 /* Strip trailing newline */
480 defpaths[linelen - 1] = '\0';
481 }
482 pclose(fp);
483 }
484 }
485 #endif
486 /* Read the configuration file. */
487 manconf_parse(&conf, conf_file, defpaths, auxpaths);
488 #ifdef __FreeBSD__
489 free(defpaths);
490 }
491 #endif
492
493 /* man(1): Resolve each name individually. */
494
495 if (search.argmode == ARG_NAME) {
496 if (argc < 1) {
497 if (outmode != OUTMODE_FLN)
498 usage(ARG_NAME);
499 if (conf.manpath.sz == 0) {
500 warnx("The manpath is empty.");
501 mandoc_msg_setrc(MANDOCLEVEL_BADARG);
502 } else {
503 for (i = 0; i + 1 < conf.manpath.sz; i++)
504 printf("%s:", conf.manpath.paths[i]);
505 printf("%s\n", conf.manpath.paths[i]);
506 }
507 manconf_free(&conf);
508 return (int)mandoc_msg_getrc();
509 }
510 for (res = NULL, ressz = 0; argc > 0; argc--, argv++) {
511 (void)mansearch(&search, &conf.manpath,
512 1, argv, &resn, &resnsz);
513 if (resnsz == 0)
514 (void)fs_search(&search, &conf.manpath,
515 *argv, &resn, &resnsz);
516 if (resnsz == 0) {
517 if (search.arch != NULL &&
518 arch_valid(search.arch, OSENUM) == 0)
519 warnx("Unknown architecture \"%s\".",
520 search.arch);
521 else if (search.sec != NULL)
522 warnx("No entry for %s in "
523 "section %s of the manual.",
524 *argv, search.sec);
525 else
526 warnx("No entry for %s in "
527 "the manual.", *argv);
528 mandoc_msg_setrc(MANDOCLEVEL_BADARG);
529 continue;
530 }
531 if (outmode != OUTMODE_ONE || resnsz == 1) {
532 res = mandoc_reallocarray(res,
533 ressz + resnsz, sizeof(*res));
534 memcpy(res + ressz, resn,
535 sizeof(*resn) * resnsz);
536 ressz += resnsz;
537 free(resn);
538 resn = NULL;
539 resnsz = 0;
540 continue;
541 }
542
543 /* Search for the best section. */
544
545 best_prio = 40;
546 for (ib = i = 0; i < resnsz; i++) {
547 sec = resn[i].file +
548 strlen(conf.manpath.paths[resn[i].ipath]);
549 sec += strcspn(sec, "123456789");
550 if (sec[0] == '\0')
551 continue; /* No section at all. */
552 prio = sec_prios[sec[0] - '1'];
553 if (search.sec != NULL) {
554 ssz = strlen(search.sec);
555 if (strncmp(sec, search.sec, ssz) == 0)
556 sec += ssz;
557 } else
558 sec++; /* Prefer without suffix. */
559 if (*sec != '/')
560 prio += 10; /* Wrong dir name. */
561 if (search.sec != NULL) {
562 ep = strchr(sec, '\0');
563 if (ep - sec > 3 &&
564 strncmp(ep - 3, ".gz", 3) == 0)
565 ep -= 3;
566 if ((size_t)(ep - sec) < ssz + 3 ||
567 strncmp(ep - ssz, search.sec,
568 ssz) != 0) /* Wrong file */
569 prio += 20; /* extension. */
570 }
571 if (prio >= best_prio)
572 continue;
573 best_prio = prio;
574 ib = i;
575 }
576 res = mandoc_reallocarray(res, ressz + 1,
577 sizeof(*res));
578 memcpy(res + ressz++, resn + ib, sizeof(*resn));
579 memset(resn + ib, 0, sizeof(*resn));
580 mansearch_free(resn, resnsz);
581 resn = NULL;
582 resnsz = 0;
583 }
584
585 /* apropos(1), whatis(1): Process the full search expression. */
586
587 } else if (search.argmode != ARG_FILE) {
588 if (mansearch(&search, &conf.manpath,
589 argc, argv, &res, &ressz) == 0)
590 usage(search.argmode);
591
592 if (ressz == 0) {
593 warnx("nothing appropriate");
594 mandoc_msg_setrc(MANDOCLEVEL_BADARG);
595 goto out;
596 }
597
598 /* mandoc(1): Take command line arguments as file names. */
599
600 } else {
601 ressz = argc > 0 ? argc : 1;
602 res = mandoc_calloc(ressz, sizeof(*res));
603 for (i = 0; i < ressz; i++) {
604 if (argc > 0)
605 res[i].file = mandoc_strdup(argv[i]);
606 res[i].ipath = SIZE_MAX;
607 res[i].form = FORM_SRC;
608 }
609 }
610
611 switch (outmode) {
612 case OUTMODE_FLN:
613 for (i = 0; i < ressz; i++)
614 puts(res[i].file);
615 goto out;
616 case OUTMODE_LST:
617 for (i = 0; i < ressz; i++)
618 printf("%s - %s\n", res[i].names,
619 res[i].output == NULL ? "" :
620 res[i].output);
621 goto out;
622 default:
623 break;
624 }
625
626 if (search.argmode == ARG_FILE && auxpaths != NULL) {
627 if (strcmp(auxpaths, "doc") == 0)
628 options |= MPARSE_MDOC;
629 else if (strcmp(auxpaths, "an") == 0)
630 options |= MPARSE_MAN;
631 }
632
633 mchars_alloc();
634 mp = mparse_alloc(options, os_e, os_s);
635
636 for (i = 0; i < ressz; i++) {
637 if (i > 0)
638 mparse_reset(mp);
639 process_onefile(mp, res + i, &outst, &conf);
640 if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
641 break;
642 }
643 if (conf.output.tag != NULL && conf.output.tag_found == 0) {
644 mandoc_msg(MANDOCERR_TAG, 0, 0, "%s", conf.output.tag);
645 conf.output.tag = NULL;
646 }
647 if (outst.outdata != NULL) {
648 switch (outst.outtype) {
649 case OUTT_HTML:
650 html_free(outst.outdata);
651 break;
652 case OUTT_UTF8:
653 case OUTT_LOCALE:
654 case OUTT_ASCII:
655 ascii_free(outst.outdata);
656 break;
657 case OUTT_PDF:
658 case OUTT_PS:
659 pspdf_free(outst.outdata);
660 break;
661 default:
662 break;
663 }
664 }
665 mandoc_xr_free();
666 mparse_free(mp);
667 mchars_free();
668
669 out:
670 mansearch_free(res, ressz);
671 if (search.argmode != ARG_FILE)
672 manconf_free(&conf);
673
674 if (outst.tag_files != NULL) {
675 if (term_tag_close() != -1 &&
676 conf.output.outfilename == NULL &&
677 conf.output.tagfilename == NULL)
678 run_pager(&outst, conf.output.tag);
679 term_tag_unlink();
680 } else if (outst.had_output && outst.outtype != OUTT_LINT)
681 mandoc_msg_summary();
682
683 #if DEBUG_MEMORY
684 mandoc_dbg_finish();
685 #endif
686 return (int)mandoc_msg_getrc();
687 }
688
689 static void
usage(enum argmode argmode)690 usage(enum argmode argmode)
691 {
692 switch (argmode) {
693 case ARG_FILE:
694 fputs("usage: mandoc [-ac] [-I os=name] "
695 "[-K encoding] [-mdoc | -man] [-O options]\n"
696 "\t [-T output] [-W level] [file ...]\n", stderr);
697 break;
698 case ARG_NAME:
699 fputs("usage: man [-acfhklw] [-C file] [-M path] "
700 "[-m path] [-S subsection]\n"
701 "\t [[-s] section] name ...\n", stderr);
702 break;
703 case ARG_WORD:
704 fputs("usage: whatis [-afk] [-C file] "
705 "[-M path] [-m path] [-O outkey] [-S arch]\n"
706 "\t [-s section] name ...\n", stderr);
707 break;
708 case ARG_EXPR:
709 fputs("usage: apropos [-afk] [-C file] "
710 "[-M path] [-m path] [-O outkey] [-S arch]\n"
711 "\t [-s section] expression ...\n", stderr);
712 break;
713 }
714 exit((int)MANDOCLEVEL_BADARG);
715 }
716
717 static void
glob_esc(char ** dst,const char * src,const char * suffix)718 glob_esc(char **dst, const char *src, const char *suffix)
719 {
720 while (*src != '\0') {
721 if (strchr("*?[", *src) != NULL)
722 *(*dst)++ = '\\';
723 *(*dst)++ = *src++;
724 }
725 while (*suffix != '\0')
726 *(*dst)++ = *suffix++;
727 }
728
729 static void
fs_append(char ** file,size_t filesz,int copy,size_t ipath,const char * sec,enum form form,struct manpage ** res,size_t * ressz)730 fs_append(char **file, size_t filesz, int copy, size_t ipath,
731 const char *sec, enum form form, struct manpage **res, size_t *ressz)
732 {
733 struct manpage *page;
734
735 *res = mandoc_reallocarray(*res, *ressz + filesz, sizeof(**res));
736 page = *res + *ressz;
737 *ressz += filesz;
738 for (;;) {
739 page->file = copy ? mandoc_strdup(*file) : *file;
740 page->names = NULL;
741 page->output = NULL;
742 page->bits = NAME_FILE & NAME_MASK;
743 page->ipath = ipath;
744 page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
745 page->form = form;
746 if (--filesz == 0)
747 break;
748 file++;
749 page++;
750 }
751 }
752
753 static int
fs_lookup(const struct manpaths * paths,size_t ipath,const char * sec,const char * arch,const char * name,struct manpage ** res,size_t * ressz)754 fs_lookup(const struct manpaths *paths, size_t ipath,
755 const char *sec, const char *arch, const char *name,
756 struct manpage **res, size_t *ressz)
757 {
758 struct stat sb;
759 glob_t globinfo;
760 char *file, *cp, secnum[2];
761 int globres;
762 enum form form;
763
764 const char *const slman = "/man";
765 const char *const slash = "/";
766 const char *const sglob = ".[01-9]*";
767 const char *const dot = ".";
768 const char *const aster = "*";
769
770 memset(&globinfo, 0, sizeof(globinfo));
771 form = FORM_SRC;
772
773 mandoc_asprintf(&file, "%s/man%s/%s.%s",
774 paths->paths[ipath], sec, name, sec);
775 if (stat(file, &sb) != -1)
776 goto found;
777 free(file);
778
779 mandoc_asprintf(&file, "%s/cat%s/%s.0",
780 paths->paths[ipath], sec, name);
781 if (stat(file, &sb) != -1) {
782 form = FORM_CAT;
783 goto found;
784 }
785 free(file);
786
787 if (arch != NULL) {
788 mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
789 paths->paths[ipath], sec, arch, name, sec);
790 if (stat(file, &sb) != -1)
791 goto found;
792 free(file);
793 }
794
795 cp = file = mandoc_malloc(strlen(paths->paths[ipath]) * 2 +
796 strlen(slman) + strlen(sec) * 2 + strlen(slash) +
797 strlen(name) * 2 + strlen(sglob) + 1);
798 glob_esc(&cp, paths->paths[ipath], slman);
799 glob_esc(&cp, sec, slash);
800 glob_esc(&cp, name, sglob);
801 *cp = '\0';
802 globres = glob(file, 0, NULL, &globinfo);
803 if (globres != 0 && globres != GLOB_NOMATCH)
804 mandoc_msg(MANDOCERR_GLOB, 0, 0,
805 "%s: %s", file, strerror(errno));
806 free(file);
807 file = NULL;
808 if (globres == 0)
809 goto found;
810 globfree(&globinfo);
811
812 if (sec[1] != '\0' && *ressz == 0) {
813 secnum[0] = sec[0];
814 secnum[1] = '\0';
815 cp = file = mandoc_malloc(strlen(paths->paths[ipath]) * 2 +
816 strlen(slman) + strlen(secnum) * 2 + strlen(slash) +
817 strlen(name) * 2 + strlen(dot) +
818 strlen(sec) * 2 + strlen(aster) + 1);
819 glob_esc(&cp, paths->paths[ipath], slman);
820 glob_esc(&cp, secnum, slash);
821 glob_esc(&cp, name, dot);
822 glob_esc(&cp, sec, aster);
823 *cp = '\0';
824 globres = glob(file, 0, NULL, &globinfo);
825 if (globres != 0 && globres != GLOB_NOMATCH)
826 mandoc_msg(MANDOCERR_GLOB, 0, 0,
827 "%s: %s", file, strerror(errno));
828 free(file);
829 file = NULL;
830 if (globres == 0)
831 goto found;
832 globfree(&globinfo);
833 }
834
835 if (res != NULL || ipath + 1 != paths->sz)
836 return -1;
837
838 mandoc_asprintf(&file, "%s.%s", name, sec);
839 globres = stat(file, &sb);
840 free(file);
841 return globres;
842
843 found:
844 warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
845 name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
846 if (res == NULL)
847 free(file);
848 else if (file == NULL)
849 fs_append(globinfo.gl_pathv, globinfo.gl_pathc, 1,
850 ipath, sec, form, res, ressz);
851 else
852 fs_append(&file, 1, 0, ipath, sec, form, res, ressz);
853 globfree(&globinfo);
854 return 0;
855 }
856
857 static int
fs_search(const struct mansearch * cfg,const struct manpaths * paths,const char * name,struct manpage ** res,size_t * ressz)858 fs_search(const struct mansearch *cfg, const struct manpaths *paths,
859 const char *name, struct manpage **res, size_t *ressz)
860 {
861 const char *const sections[] =
862 {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
863 const size_t nsec = sizeof(sections)/sizeof(sections[0]);
864
865 size_t ipath, isec;
866
867 assert(cfg->argmode == ARG_NAME);
868 if (res != NULL)
869 *res = NULL;
870 *ressz = 0;
871 for (ipath = 0; ipath < paths->sz; ipath++) {
872 if (cfg->sec != NULL) {
873 if (fs_lookup(paths, ipath, cfg->sec, cfg->arch,
874 name, res, ressz) != -1 && cfg->firstmatch)
875 return 0;
876 } else {
877 for (isec = 0; isec < nsec; isec++)
878 if (fs_lookup(paths, ipath, sections[isec],
879 cfg->arch, name, res, ressz) != -1 &&
880 cfg->firstmatch)
881 return 0;
882 }
883 }
884 return -1;
885 }
886
887 static void
process_onefile(struct mparse * mp,struct manpage * resp,struct outstate * outst,struct manconf * conf)888 process_onefile(struct mparse *mp, struct manpage *resp,
889 struct outstate *outst, struct manconf *conf)
890 {
891 int fd;
892
893 /*
894 * Changing directories is not needed in ARG_FILE mode.
895 * Do it on a best-effort basis. Even in case of
896 * failure, some functionality may still work.
897 */
898 if (resp->ipath != SIZE_MAX)
899 (void)chdir(conf->manpath.paths[resp->ipath]);
900
901 mandoc_msg_setinfilename(resp->file);
902 if (resp->file != NULL) {
903 if ((fd = mparse_open(mp, resp->file)) == -1) {
904 mandoc_msg(resp->ipath == SIZE_MAX ?
905 MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
906 0, 0, "%s", strerror(errno));
907 mandoc_msg_setinfilename(NULL);
908 return;
909 }
910 } else
911 fd = STDIN_FILENO;
912
913 if (outst->use_pager) {
914 outst->use_pager = 0;
915 outst->tag_files = term_tag_init(conf->output.outfilename,
916 outst->outtype == OUTT_HTML ? ".html" : "",
917 conf->output.tagfilename);
918 #if HAVE_PLEDGE
919 if ((conf->output.outfilename != NULL ||
920 conf->output.tagfilename != NULL) &&
921 pledge("stdio rpath cpath", NULL) == -1) {
922 mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
923 "%s", strerror(errno));
924 exit(mandoc_msg_getrc());
925 }
926 #endif
927 }
928 if (outst->had_output && outst->outtype <= OUTT_UTF8) {
929 if (outst->outdata == NULL)
930 outdata_alloc(outst, &conf->output);
931 terminal_sepline(outst->outdata);
932 }
933
934 if (resp->form == FORM_SRC)
935 parse(mp, fd, resp->file, outst, conf);
936 else {
937 passthrough(fd, conf->output.synopsisonly);
938 outst->had_output = 1;
939 }
940
941 if (ferror(stdout)) {
942 if (outst->tag_files != NULL) {
943 mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
944 outst->tag_files->ofn, strerror(errno));
945 term_tag_unlink();
946 outst->tag_files = NULL;
947 } else
948 mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
949 strerror(errno));
950 }
951 mandoc_msg_setinfilename(NULL);
952 }
953
954 static void
parse(struct mparse * mp,int fd,const char * file,struct outstate * outst,struct manconf * conf)955 parse(struct mparse *mp, int fd, const char *file,
956 struct outstate *outst, struct manconf *conf)
957 {
958 static struct manpaths basepaths;
959 struct roff_meta *meta;
960
961 assert(fd >= 0);
962 if (file == NULL)
963 file = "<stdin>";
964
965 mparse_readfd(mp, fd, file);
966 if (fd != STDIN_FILENO)
967 close(fd);
968
969 /*
970 * With -Wstop and warnings or errors of at least the requested
971 * level, do not produce output.
972 */
973
974 if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
975 return;
976
977 if (outst->outdata == NULL)
978 outdata_alloc(outst, &conf->output);
979 else if (outst->outtype == OUTT_HTML)
980 html_reset(outst->outdata);
981
982 mandoc_xr_reset();
983 meta = mparse_result(mp);
984
985 /* Execute the out device, if it exists. */
986
987 outst->had_output = 1;
988 if (meta->macroset == MACROSET_MDOC) {
989 switch (outst->outtype) {
990 case OUTT_HTML:
991 html_mdoc(outst->outdata, meta);
992 break;
993 case OUTT_TREE:
994 tree_mdoc(outst->outdata, meta);
995 break;
996 case OUTT_MAN:
997 man_mdoc(outst->outdata, meta);
998 break;
999 case OUTT_PDF:
1000 case OUTT_ASCII:
1001 case OUTT_UTF8:
1002 case OUTT_LOCALE:
1003 case OUTT_PS:
1004 terminal_mdoc(outst->outdata, meta);
1005 break;
1006 case OUTT_MARKDOWN:
1007 markdown_mdoc(outst->outdata, meta);
1008 break;
1009 default:
1010 break;
1011 }
1012 }
1013 if (meta->macroset == MACROSET_MAN) {
1014 switch (outst->outtype) {
1015 case OUTT_HTML:
1016 html_man(outst->outdata, meta);
1017 break;
1018 case OUTT_TREE:
1019 tree_man(outst->outdata, meta);
1020 break;
1021 case OUTT_MAN:
1022 mparse_copy(mp);
1023 break;
1024 case OUTT_PDF:
1025 case OUTT_ASCII:
1026 case OUTT_UTF8:
1027 case OUTT_LOCALE:
1028 case OUTT_PS:
1029 terminal_man(outst->outdata, meta);
1030 break;
1031 case OUTT_MARKDOWN:
1032 mandoc_msg(MANDOCERR_MAN_TMARKDOWN, 0, 0, NULL);
1033 break;
1034 default:
1035 break;
1036 }
1037 }
1038 if (conf->output.tag != NULL && conf->output.tag_found == 0 &&
1039 tag_exists(conf->output.tag))
1040 conf->output.tag_found = 1;
1041
1042 if (mandoc_msg_getmin() < MANDOCERR_STYLE) {
1043 if (basepaths.sz == 0)
1044 manpath_base(&basepaths);
1045 check_xr(&basepaths);
1046 } else if (mandoc_msg_getmin() < MANDOCERR_WARNING)
1047 check_xr(&conf->manpath);
1048 }
1049
1050 static void
check_xr(struct manpaths * paths)1051 check_xr(struct manpaths *paths)
1052 {
1053 struct mansearch search;
1054 struct mandoc_xr *xr;
1055 size_t sz;
1056
1057 for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1058 if (xr->line == -1)
1059 continue;
1060 search.arch = NULL;
1061 search.sec = xr->sec;
1062 search.outkey = NULL;
1063 search.argmode = ARG_NAME;
1064 search.firstmatch = 1;
1065 if (mansearch(&search, paths, 1, &xr->name, NULL, &sz))
1066 continue;
1067 if (fs_search(&search, paths, xr->name, NULL, &sz) != -1)
1068 continue;
1069 if (xr->count == 1)
1070 mandoc_msg(MANDOCERR_XR_BAD, xr->line,
1071 xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1072 else
1073 mandoc_msg(MANDOCERR_XR_BAD, xr->line,
1074 xr->pos + 1, "Xr %s %s (%d times)",
1075 xr->name, xr->sec, xr->count);
1076 }
1077 }
1078
1079 static void
outdata_alloc(struct outstate * outst,struct manoutput * outconf)1080 outdata_alloc(struct outstate *outst, struct manoutput *outconf)
1081 {
1082 switch (outst->outtype) {
1083 case OUTT_HTML:
1084 outst->outdata = html_alloc(outconf);
1085 break;
1086 case OUTT_UTF8:
1087 outst->outdata = utf8_alloc(outconf);
1088 break;
1089 case OUTT_LOCALE:
1090 outst->outdata = locale_alloc(outconf);
1091 break;
1092 case OUTT_ASCII:
1093 outst->outdata = ascii_alloc(outconf);
1094 break;
1095 case OUTT_PDF:
1096 outst->outdata = pdf_alloc(outconf);
1097 break;
1098 case OUTT_PS:
1099 outst->outdata = ps_alloc(outconf);
1100 break;
1101 default:
1102 break;
1103 }
1104 }
1105
1106 static void
passthrough(int fd,int synopsis_only)1107 passthrough(int fd, int synopsis_only)
1108 {
1109 const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
1110 const char synr[] = "SYNOPSIS";
1111
1112 FILE *stream;
1113 char *line, *cp;
1114 size_t linesz;
1115 ssize_t len, written;
1116 int lno, print;
1117
1118 stream = NULL;
1119 line = NULL;
1120 linesz = 0;
1121
1122 if (fflush(stdout) == EOF) {
1123 mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
1124 goto done;
1125 }
1126 if ((stream = fdopen(fd, "r")) == NULL) {
1127 close(fd);
1128 mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
1129 goto done;
1130 }
1131
1132 lno = print = 0;
1133 while ((len = getline(&line, &linesz, stream)) != -1) {
1134 lno++;
1135 cp = line;
1136 if (synopsis_only) {
1137 if (print) {
1138 if ( ! isspace((unsigned char)*cp))
1139 goto done;
1140 while (isspace((unsigned char)*cp)) {
1141 cp++;
1142 len--;
1143 }
1144 } else {
1145 if (strcmp(cp, synb) == 0 ||
1146 strcmp(cp, synr) == 0)
1147 print = 1;
1148 continue;
1149 }
1150 }
1151 for (; len > 0; len -= written) {
1152 if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1153 mandoc_msg(MANDOCERR_WRITE, 0, 0,
1154 "%s", strerror(errno));
1155 goto done;
1156 }
1157 }
1158 }
1159 if (ferror(stream))
1160 mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1161
1162 done:
1163 free(line);
1164 if (stream != NULL)
1165 fclose(stream);
1166 }
1167
1168 static int
woptions(char * arg,enum mandoc_os * os_e,int * wstop)1169 woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1170 {
1171 char *v, *o;
1172 const char *toks[11];
1173
1174 toks[0] = "stop";
1175 toks[1] = "all";
1176 toks[2] = "base";
1177 toks[3] = "style";
1178 toks[4] = "warning";
1179 toks[5] = "error";
1180 toks[6] = "unsupp";
1181 toks[7] = "fatal";
1182 toks[8] = "openbsd";
1183 toks[9] = "netbsd";
1184 toks[10] = NULL;
1185
1186 while (*arg) {
1187 o = arg;
1188 switch (getsubopt(&arg, (char * const *)toks, &v)) {
1189 case 0:
1190 *wstop = 1;
1191 break;
1192 case 1:
1193 case 2:
1194 mandoc_msg_setmin(MANDOCERR_BASE);
1195 break;
1196 case 3:
1197 mandoc_msg_setmin(MANDOCERR_STYLE);
1198 break;
1199 case 4:
1200 mandoc_msg_setmin(MANDOCERR_WARNING);
1201 break;
1202 case 5:
1203 mandoc_msg_setmin(MANDOCERR_ERROR);
1204 break;
1205 case 6:
1206 mandoc_msg_setmin(MANDOCERR_UNSUPP);
1207 break;
1208 case 7:
1209 mandoc_msg_setmin(MANDOCERR_BADARG);
1210 break;
1211 case 8:
1212 mandoc_msg_setmin(MANDOCERR_BASE);
1213 *os_e = MANDOC_OS_OPENBSD;
1214 break;
1215 case 9:
1216 mandoc_msg_setmin(MANDOCERR_BASE);
1217 *os_e = MANDOC_OS_NETBSD;
1218 break;
1219 default:
1220 mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1221 return -1;
1222 }
1223 }
1224 return 0;
1225 }
1226
1227 /*
1228 * Wait until moved to the foreground,
1229 * then fork the pager and wait for the user to close it.
1230 */
1231 static void
run_pager(struct outstate * outst,char * tag_target)1232 run_pager(struct outstate *outst, char *tag_target)
1233 {
1234 int signum, status;
1235 pid_t man_pgid, tc_pgid;
1236 pid_t pager_pid, wait_pid;
1237
1238 man_pgid = getpgid(0);
1239 outst->tag_files->tcpgid =
1240 man_pgid == getpid() ? getpgid(getppid()) : man_pgid;
1241 pager_pid = 0;
1242 signum = SIGSTOP;
1243
1244 for (;;) {
1245 /* Stop here until moved to the foreground. */
1246
1247 tc_pgid = tcgetpgrp(STDOUT_FILENO);
1248 if (tc_pgid != man_pgid) {
1249 if (tc_pgid == pager_pid) {
1250 (void)tcsetpgrp(STDOUT_FILENO, man_pgid);
1251 if (signum == SIGTTIN)
1252 continue;
1253 } else
1254 outst->tag_files->tcpgid = tc_pgid;
1255 kill(0, signum);
1256 continue;
1257 }
1258
1259 /* Once in the foreground, activate the pager. */
1260
1261 if (pager_pid) {
1262 (void)tcsetpgrp(STDOUT_FILENO, pager_pid);
1263 kill(pager_pid, SIGCONT);
1264 } else
1265 pager_pid = spawn_pager(outst, tag_target);
1266
1267 /* Wait for the pager to stop or exit. */
1268
1269 while ((wait_pid = waitpid(pager_pid, &status,
1270 WUNTRACED)) == -1 && errno == EINTR)
1271 continue;
1272
1273 if (wait_pid == -1) {
1274 mandoc_msg(MANDOCERR_WAIT, 0, 0,
1275 "%s", strerror(errno));
1276 break;
1277 }
1278 if (!WIFSTOPPED(status))
1279 break;
1280
1281 signum = WSTOPSIG(status);
1282 }
1283 }
1284
1285 static pid_t
spawn_pager(struct outstate * outst,char * tag_target)1286 spawn_pager(struct outstate *outst, char *tag_target)
1287 {
1288 const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1289 #define MAX_PAGER_ARGS 16
1290 char *argv[MAX_PAGER_ARGS];
1291 const char *pager;
1292 char *cp;
1293 size_t wordlen;
1294 #if HAVE_LESS_T
1295 size_t cmdlen;
1296 #endif
1297 int argc, use_ofn;
1298 pid_t pager_pid;
1299
1300 assert(outst->tag_files->ofd == -1);
1301 assert(outst->tag_files->tfs == NULL);
1302
1303 pager = getenv("MANPAGER");
1304 if (pager == NULL || *pager == '\0')
1305 pager = getenv("PAGER");
1306 if (pager == NULL || *pager == '\0')
1307 pager = BINM_PAGER;
1308
1309 /*
1310 * Parse the pager command into words.
1311 * Intentionally do not do anything fancy here.
1312 */
1313
1314 argc = 0;
1315 while (*pager != '\0' && argc + 5 < MAX_PAGER_ARGS) {
1316 wordlen = strcspn(pager, " ");
1317 argv[argc++] = mandoc_strndup(pager, wordlen);
1318 pager += wordlen;
1319 while (*pager == ' ')
1320 pager++;
1321 }
1322
1323 /* For less(1), use the tag file. */
1324
1325 use_ofn = 1;
1326 #if HAVE_LESS_T
1327 if (*outst->tag_files->tfn != '\0' &&
1328 (cmdlen = strlen(argv[0])) >= 4) {
1329 cp = argv[0] + cmdlen - 4;
1330 if (strcmp(cp, "less") == 0) {
1331 argv[argc++] = mandoc_strdup("-T");
1332 argv[argc++] = mandoc_strdup(outst->tag_files->tfn);
1333 if (tag_target != NULL) {
1334 argv[argc++] = mandoc_strdup("-t");
1335 argv[argc++] = mandoc_strdup(tag_target);
1336 use_ofn = 0;
1337 }
1338 }
1339 }
1340 #endif
1341 if (use_ofn) {
1342 if (outst->outtype == OUTT_HTML && tag_target != NULL)
1343 mandoc_asprintf(&argv[argc], "file://%s#%s",
1344 outst->tag_files->ofn, tag_target);
1345 else
1346 argv[argc] = mandoc_strdup(outst->tag_files->ofn);
1347 argc++;
1348 }
1349 argv[argc] = NULL;
1350
1351 switch (pager_pid = fork()) {
1352 case -1:
1353 mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1354 exit(mandoc_msg_getrc());
1355 case 0:
1356 break;
1357 default:
1358 while (argc > 0)
1359 free(argv[--argc]);
1360 (void)setpgid(pager_pid, 0);
1361 (void)tcsetpgrp(STDOUT_FILENO, pager_pid);
1362 #if HAVE_PLEDGE
1363 if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1364 mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1365 "%s", strerror(errno));
1366 exit(mandoc_msg_getrc());
1367 }
1368 #endif
1369 outst->tag_files->pager_pid = pager_pid;
1370 return pager_pid;
1371 }
1372
1373 /*
1374 * The child process becomes the pager.
1375 * Do not start it before controlling the terminal.
1376 */
1377
1378 while (tcgetpgrp(STDOUT_FILENO) != getpid())
1379 nanosleep(&timeout, NULL);
1380
1381 execvp(argv[0], argv);
1382 mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1383 _exit(mandoc_msg_getrc());
1384 }
1385