Annotation of src/usr.bin/mandoc/main.c, Revision 1.217
1.217 ! schwarze 1: /* $OpenBSD: main.c,v 1.216 2018/12/14 05:17:45 schwarze Exp $ */
1.1 kristaps 2: /*
1.95 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.207 schwarze 4: * Copyright (c) 2010-2012, 2014-2018 Ingo Schwarze <schwarze@openbsd.org>
1.86 schwarze 5: * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
1.1 kristaps 6: *
7: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 10: *
1.134 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.134 schwarze 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 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.
1.1 kristaps 18: */
19:
1.95 schwarze 20: #include <sys/types.h>
1.207 schwarze 21: #include <sys/ioctl.h>
1.122 schwarze 22: #include <sys/param.h> /* MACHINE */
1.207 schwarze 23: #include <sys/termios.h>
1.129 schwarze 24: #include <sys/wait.h>
1.95 schwarze 25:
1.1 kristaps 26: #include <assert.h>
1.95 schwarze 27: #include <ctype.h>
1.152 schwarze 28: #include <err.h>
1.165 schwarze 29: #include <errno.h>
1.95 schwarze 30: #include <fcntl.h>
1.127 schwarze 31: #include <glob.h>
1.131 schwarze 32: #include <signal.h>
1.1 kristaps 33: #include <stdio.h>
1.17 schwarze 34: #include <stdint.h>
1.1 kristaps 35: #include <stdlib.h>
36: #include <string.h>
1.172 schwarze 37: #include <time.h>
1.1 kristaps 38: #include <unistd.h>
39:
1.136 schwarze 40: #include "mandoc_aux.h"
1.30 schwarze 41: #include "mandoc.h"
1.197 schwarze 42: #include "mandoc_xr.h"
1.136 schwarze 43: #include "roff.h"
1.1 kristaps 44: #include "mdoc.h"
45: #include "man.h"
1.214 schwarze 46: #include "mandoc_parse.h"
1.144 schwarze 47: #include "tag.h"
1.136 schwarze 48: #include "main.h"
1.134 schwarze 49: #include "manconf.h"
1.95 schwarze 50: #include "mansearch.h"
51:
52: enum outmode {
53: OUTMODE_DEF = 0,
54: OUTMODE_FLN,
55: OUTMODE_LST,
56: OUTMODE_ALL,
57: OUTMODE_ONE
58: };
1.1 kristaps 59:
60: enum outt {
1.76 schwarze 61: OUTT_ASCII = 0, /* -Tascii */
1.77 schwarze 62: OUTT_LOCALE, /* -Tlocale */
63: OUTT_UTF8, /* -Tutf8 */
1.76 schwarze 64: OUTT_TREE, /* -Ttree */
1.78 schwarze 65: OUTT_MAN, /* -Tman */
1.76 schwarze 66: OUTT_HTML, /* -Thtml */
1.188 schwarze 67: OUTT_MARKDOWN, /* -Tmarkdown */
1.76 schwarze 68: OUTT_LINT, /* -Tlint */
69: OUTT_PS, /* -Tps */
70: OUTT_PDF /* -Tpdf */
1.1 kristaps 71: };
72:
73: struct curparse {
1.76 schwarze 74: struct mparse *mp;
1.196 schwarze 75: struct manoutput *outopts; /* output options */
76: void *outdata; /* data for output */
77: char *os_s; /* operating system for display */
1.75 schwarze 78: int wstop; /* stop after a file with a warning */
1.196 schwarze 79: enum mandoc_os os_e; /* check base system conventions */
1.90 schwarze 80: enum outt outtype; /* which output to use */
1.33 schwarze 81: };
1.174 schwarze 82:
83:
84: int mandocdb(int, char *[]);
1.33 schwarze 85:
1.215 schwarze 86: static void check_xr(void);
1.119 schwarze 87: static int fs_lookup(const struct manpaths *,
88: size_t ipath, const char *,
89: const char *, const char *,
90: struct manpage **, size_t *);
1.198 schwarze 91: static int fs_search(const struct mansearch *,
1.119 schwarze 92: const struct manpaths *, int, char**,
93: struct manpage **, size_t *);
1.103 schwarze 94: static int koptions(int *, char *);
1.189 schwarze 95: static void moptions(int *, char *);
1.179 schwarze 96: static void outdata_alloc(struct curparse *);
1.132 schwarze 97: static void parse(struct curparse *, int, const char *);
98: static void passthrough(const char *, int, int);
1.149 schwarze 99: static pid_t spawn_pager(struct tag_files *);
1.27 schwarze 100: static int toptions(struct curparse *, char *);
1.184 schwarze 101: static void usage(enum argmode) __attribute__((__noreturn__));
1.45 schwarze 102: static int woptions(struct curparse *, char *);
1.1 kristaps 103:
1.95 schwarze 104: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.110 schwarze 105: static char help_arg[] = "help";
106: static char *help_argv[] = {help_arg, NULL};
1.1 kristaps 107:
1.90 schwarze 108:
1.1 kristaps 109: int
110: main(int argc, char *argv[])
111: {
1.134 schwarze 112: struct manconf conf;
1.186 schwarze 113: struct mansearch search;
1.1 kristaps 114: struct curparse curp;
1.207 schwarze 115: struct winsize ws;
1.149 schwarze 116: struct tag_files *tag_files;
1.186 schwarze 117: struct manpage *res, *resp;
118: const char *progname, *sec, *thisarg;
119: char *conf_file, *defpaths, *auxpaths;
1.196 schwarze 120: char *oarg;
1.113 schwarze 121: unsigned char *uc;
1.171 schwarze 122: size_t i, sz;
1.135 schwarze 123: int prio, best_prio;
1.95 schwarze 124: enum outmode outmode;
1.208 schwarze 125: int fd, startdir;
1.95 schwarze 126: int show_usage;
1.87 schwarze 127: int options;
1.149 schwarze 128: int use_pager;
1.166 schwarze 129: int status, signum;
1.95 schwarze 130: int c;
1.166 schwarze 131: pid_t pager_pid, tc_pgid, man_pgid, pid;
1.1 kristaps 132:
1.162 schwarze 133: progname = getprogname();
134: if (strncmp(progname, "mandocdb", 8) == 0 ||
135: strncmp(progname, "makewhatis", 10) == 0)
1.150 schwarze 136: return mandocdb(argc, argv);
1.19 schwarze 137:
1.187 schwarze 138: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
1.163 schwarze 139: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.154 schwarze 140:
1.95 schwarze 141: /* Search options. */
142:
1.134 schwarze 143: memset(&conf, 0, sizeof(conf));
1.111 schwarze 144: conf_file = defpaths = NULL;
145: auxpaths = NULL;
1.95 schwarze 146:
147: memset(&search, 0, sizeof(struct mansearch));
148: search.outkey = "Nd";
1.186 schwarze 149: oarg = NULL;
1.95 schwarze 150:
1.162 schwarze 151: if (strcmp(progname, "man") == 0)
1.95 schwarze 152: search.argmode = ARG_NAME;
1.162 schwarze 153: else if (strncmp(progname, "apropos", 7) == 0)
1.95 schwarze 154: search.argmode = ARG_EXPR;
1.162 schwarze 155: else if (strncmp(progname, "whatis", 6) == 0)
1.95 schwarze 156: search.argmode = ARG_WORD;
1.162 schwarze 157: else if (strncmp(progname, "help", 4) == 0)
1.110 schwarze 158: search.argmode = ARG_NAME;
1.95 schwarze 159: else
160: search.argmode = ARG_FILE;
161:
162: /* Parser and formatter options. */
163:
1.19 schwarze 164: memset(&curp, 0, sizeof(struct curparse));
1.109 schwarze 165: curp.outtype = OUTT_LOCALE;
1.135 schwarze 166: curp.outopts = &conf.output;
1.103 schwarze 167: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.1 kristaps 168:
1.149 schwarze 169: use_pager = 1;
170: tag_files = NULL;
1.95 schwarze 171: show_usage = 0;
172: outmode = OUTMODE_DEF;
173:
1.192 schwarze 174: while ((c = getopt(argc, argv,
175: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
176: if (c == 'i' && search.argmode == ARG_EXPR) {
177: optind--;
178: break;
179: }
1.1 kristaps 180: switch (c) {
1.95 schwarze 181: case 'a':
182: outmode = OUTMODE_ALL;
183: break;
184: case 'C':
185: conf_file = optarg;
186: break;
187: case 'c':
1.149 schwarze 188: use_pager = 0;
1.95 schwarze 189: break;
190: case 'f':
191: search.argmode = ARG_WORD;
192: break;
1.98 schwarze 193: case 'h':
1.135 schwarze 194: conf.output.synopsisonly = 1;
1.149 schwarze 195: use_pager = 0;
1.98 schwarze 196: outmode = OUTMODE_ALL;
197: break;
1.90 schwarze 198: case 'I':
1.83 schwarze 199: if (strncmp(optarg, "os=", 3)) {
1.152 schwarze 200: warnx("-I %s: Bad argument", optarg);
1.150 schwarze 201: return (int)MANDOCLEVEL_BADARG;
1.83 schwarze 202: }
1.196 schwarze 203: if (curp.os_s != NULL) {
1.152 schwarze 204: warnx("-I %s: Duplicate argument", optarg);
1.150 schwarze 205: return (int)MANDOCLEVEL_BADARG;
1.83 schwarze 206: }
1.196 schwarze 207: curp.os_s = mandoc_strdup(optarg + 3);
1.95 schwarze 208: break;
1.103 schwarze 209: case 'K':
210: if ( ! koptions(&options, optarg))
1.150 schwarze 211: return (int)MANDOCLEVEL_BADARG;
1.103 schwarze 212: break;
1.95 schwarze 213: case 'k':
214: search.argmode = ARG_EXPR;
215: break;
1.96 schwarze 216: case 'l':
217: search.argmode = ARG_FILE;
218: outmode = OUTMODE_ALL;
219: break;
1.95 schwarze 220: case 'M':
221: defpaths = optarg;
222: break;
1.90 schwarze 223: case 'm':
1.95 schwarze 224: auxpaths = optarg;
1.1 kristaps 225: break;
1.90 schwarze 226: case 'O':
1.186 schwarze 227: oarg = optarg;
1.17 schwarze 228: break;
1.95 schwarze 229: case 'S':
230: search.arch = optarg;
231: break;
232: case 's':
233: search.sec = optarg;
234: break;
1.90 schwarze 235: case 'T':
1.22 schwarze 236: if ( ! toptions(&curp, optarg))
1.150 schwarze 237: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 238: break;
1.90 schwarze 239: case 'W':
1.45 schwarze 240: if ( ! woptions(&curp, optarg))
1.150 schwarze 241: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 242: break;
1.95 schwarze 243: case 'w':
244: outmode = OUTMODE_FLN;
245: break;
1.1 kristaps 246: default:
1.95 schwarze 247: show_usage = 1;
248: break;
249: }
250: }
251:
252: if (show_usage)
253: usage(search.argmode);
254:
255: /* Postprocess options. */
256:
257: if (outmode == OUTMODE_DEF) {
258: switch (search.argmode) {
259: case ARG_FILE:
260: outmode = OUTMODE_ALL;
1.149 schwarze 261: use_pager = 0;
1.95 schwarze 262: break;
263: case ARG_NAME:
264: outmode = OUTMODE_ONE;
265: break;
266: default:
267: outmode = OUTMODE_LST;
268: break;
1.186 schwarze 269: }
270: }
271:
272: if (oarg != NULL) {
273: if (outmode == OUTMODE_LST)
274: search.outkey = oarg;
275: else {
276: while (oarg != NULL) {
277: thisarg = oarg;
278: if (manconf_output(&conf.output,
279: strsep(&oarg, ","), 0) == 0)
280: continue;
281: warnx("-O %s: Bad argument", thisarg);
282: return (int)MANDOCLEVEL_BADARG;
283: }
1.95 schwarze 284: }
285: }
286:
1.151 schwarze 287: if (outmode == OUTMODE_FLN ||
288: outmode == OUTMODE_LST ||
289: !isatty(STDOUT_FILENO))
290: use_pager = 0;
1.207 schwarze 291:
292: if (use_pager &&
293: (conf.output.width == 0 || conf.output.indent == 0) &&
1.209 schwarze 294: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
295: ws.ws_col > 1) {
1.207 schwarze 296: if (conf.output.width == 0 && ws.ws_col < 79)
297: conf.output.width = ws.ws_col - 1;
298: if (conf.output.indent == 0 && ws.ws_col < 66)
299: conf.output.indent = 3;
300: }
1.151 schwarze 301:
1.167 schwarze 302: if (!use_pager)
1.187 schwarze 303: if (pledge("stdio rpath", NULL) == -1)
1.167 schwarze 304: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.154 schwarze 305:
1.95 schwarze 306: /* Parse arguments. */
307:
1.124 schwarze 308: if (argc > 0) {
309: argc -= optind;
310: argv += optind;
311: }
1.95 schwarze 312: resp = NULL;
313:
1.110 schwarze 314: /*
315: * Quirks for help(1)
316: * and for a man(1) section argument without -s.
317: */
318:
319: if (search.argmode == ARG_NAME) {
1.162 schwarze 320: if (*progname == 'h') {
1.110 schwarze 321: if (argc == 0) {
322: argv = help_argv;
323: argc = 1;
324: }
1.117 schwarze 325: } else if (argc > 1 &&
1.128 schwarze 326: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.113 schwarze 327: ((isdigit(uc[0]) && (uc[1] == '\0' ||
328: (isalpha(uc[1]) && uc[2] == '\0'))) ||
329: (uc[0] == 'n' && uc[1] == '\0'))) {
1.128 schwarze 330: search.sec = (char *)uc;
1.110 schwarze 331: argv++;
332: argc--;
333: }
1.122 schwarze 334: if (search.arch == NULL)
335: search.arch = getenv("MACHINE");
336: if (search.arch == NULL)
337: search.arch = MACHINE;
1.95 schwarze 338: }
339:
340: /* man(1), whatis(1), apropos(1) */
341:
342: if (search.argmode != ARG_FILE) {
1.107 schwarze 343: if (search.argmode == ARG_NAME &&
344: outmode == OUTMODE_ONE)
345: search.firstmatch = 1;
1.95 schwarze 346:
347: /* Access the mandoc database. */
348:
1.134 schwarze 349: manconf_parse(&conf, conf_file, defpaths, auxpaths);
350: if ( ! mansearch(&search, &conf.manpath,
351: argc, argv, &res, &sz))
1.95 schwarze 352: usage(search.argmode);
1.119 schwarze 353:
1.208 schwarze 354: if (sz == 0 && search.argmode == ARG_NAME)
355: fs_search(&search, &conf.manpath,
356: argc, argv, &res, &sz);
357:
358: if (search.argmode == ARG_NAME) {
359: for (c = 0; c < argc; c++) {
360: if (strchr(argv[c], '/') == NULL)
361: continue;
362: if (access(argv[c], R_OK) == -1) {
363: warn("%s", argv[c]);
364: continue;
365: }
366: res = mandoc_reallocarray(res,
367: sz + 1, sizeof(*res));
368: res[sz].file = mandoc_strdup(argv[c]);
369: res[sz].names = NULL;
370: res[sz].output = NULL;
371: res[sz].ipath = SIZE_MAX;
372: res[sz].sec = 10;
373: res[sz].form = FORM_SRC;
374: sz++;
375: }
1.142 schwarze 376: }
1.95 schwarze 377:
378: if (sz == 0) {
1.208 schwarze 379: if (search.argmode != ARG_NAME)
380: warnx("nothing appropriate");
1.215 schwarze 381: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.95 schwarze 382: goto out;
383: }
384:
385: /*
386: * For standard man(1) and -a output mode,
387: * prepare for copying filename pointers
388: * into the program parameter array.
389: */
390:
391: if (outmode == OUTMODE_ONE) {
392: argc = 1;
1.171 schwarze 393: best_prio = 20;
1.95 schwarze 394: } else if (outmode == OUTMODE_ALL)
395: argc = (int)sz;
396:
397: /* Iterate all matching manuals. */
398:
1.119 schwarze 399: resp = res;
1.95 schwarze 400: for (i = 0; i < sz; i++) {
401: if (outmode == OUTMODE_FLN)
402: puts(res[i].file);
403: else if (outmode == OUTMODE_LST)
404: printf("%s - %s\n", res[i].names,
405: res[i].output == NULL ? "" :
406: res[i].output);
407: else if (outmode == OUTMODE_ONE) {
408: /* Search for the best section. */
1.171 schwarze 409: sec = res[i].file;
410: sec += strcspn(sec, "123456789");
411: if (sec[0] == '\0')
1.95 schwarze 412: continue;
1.171 schwarze 413: prio = sec_prios[sec[0] - '1'];
414: if (sec[1] != '/')
415: prio += 10;
1.95 schwarze 416: if (prio >= best_prio)
417: continue;
418: best_prio = prio;
419: resp = res + i;
420: }
1.1 kristaps 421: }
422:
1.95 schwarze 423: /*
424: * For man(1), -a and -i output mode, fall through
425: * to the main mandoc(1) code iterating files
426: * and running the parsers on each of them.
427: */
428:
429: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
430: goto out;
431: }
432:
433: /* mandoc(1) */
1.157 schwarze 434:
1.167 schwarze 435: if (use_pager) {
436: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
437: err((int)MANDOCLEVEL_SYSERR, "pledge");
438: } else {
439: if (pledge("stdio rpath", NULL) == -1)
440: err((int)MANDOCLEVEL_SYSERR, "pledge");
441: }
1.95 schwarze 442:
1.189 schwarze 443: if (search.argmode == ARG_FILE)
444: moptions(&options, auxpaths);
1.146 schwarze 445:
1.155 schwarze 446: mchars_alloc();
1.215 schwarze 447: curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
1.76 schwarze 448:
1.124 schwarze 449: if (argc < 1) {
1.149 schwarze 450: if (use_pager)
451: tag_files = tag_init();
1.215 schwarze 452: thisarg = "<stdin>";
453: mandoc_msg_setinfilename(thisarg);
454: parse(&curp, STDIN_FILENO, thisarg);
455: mandoc_msg_setinfilename(NULL);
1.118 schwarze 456: }
1.27 schwarze 457:
1.208 schwarze 458: /*
459: * Remember the original working directory, if possible.
460: * This will be needed if some names on the command line
461: * are page names and some are relative file names.
462: * Do not error out if the current directory is not
463: * readable: Maybe it won't be needed after all.
464: */
465: startdir = open(".", O_RDONLY | O_DIRECTORY);
466:
1.124 schwarze 467: while (argc > 0) {
1.208 schwarze 468:
469: /*
470: * Changing directories is not needed in ARG_FILE mode.
471: * Do it on a best-effort basis. Even in case of
472: * failure, some functionality may still work.
473: */
474: if (resp != NULL) {
475: if (resp->ipath != SIZE_MAX)
476: (void)chdir(conf.manpath.paths[resp->ipath]);
477: else if (startdir != -1)
478: (void)fchdir(startdir);
1.215 schwarze 479: thisarg = resp->file;
480: } else
481: thisarg = *argv;
1.208 schwarze 482:
1.215 schwarze 483: fd = mparse_open(curp.mp, thisarg);
1.118 schwarze 484: if (fd != -1) {
1.149 schwarze 485: if (use_pager) {
1.212 schwarze 486: use_pager = 0;
1.149 schwarze 487: tag_files = tag_init();
1.212 schwarze 488: if (conf.output.tag != NULL &&
489: tag_files->tagname == NULL)
490: tag_files->tagname =
491: *conf.output.tag != '\0' ?
492: conf.output.tag : *argv;
1.149 schwarze 493: }
1.118 schwarze 494:
1.217 ! schwarze 495: mandoc_msg_setinfilename(thisarg);
1.215 schwarze 496: if (resp == NULL || resp->form == FORM_SRC)
497: parse(&curp, fd, thisarg);
1.208 schwarze 498: else
1.135 schwarze 499: passthrough(resp->file, fd,
500: conf.output.synopsisonly);
1.217 ! schwarze 501: mandoc_msg_setinfilename(NULL);
1.205 schwarze 502:
503: if (ferror(stdout)) {
504: if (tag_files != NULL) {
505: warn("%s", tag_files->ofn);
506: tag_unlink();
507: tag_files = NULL;
508: } else
509: warn("stdout");
1.215 schwarze 510: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.205 schwarze 511: break;
512: }
1.118 schwarze 513:
1.179 schwarze 514: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
515: if (curp.outdata == NULL)
516: outdata_alloc(&curp);
1.173 schwarze 517: terminal_sepline(curp.outdata);
1.179 schwarze 518: }
1.217 ! schwarze 519: } else
! 520: mandoc_msg(MANDOCERR_FILE, 0, 0,
! 521: "%s", strerror(errno));
1.100 schwarze 522:
1.215 schwarze 523: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.27 schwarze 524: break;
1.116 schwarze 525:
1.118 schwarze 526: if (resp != NULL)
527: resp++;
528: else
529: argv++;
530: if (--argc)
531: mparse_reset(curp.mp);
1.1 kristaps 532: }
1.208 schwarze 533: if (startdir != -1) {
534: (void)fchdir(startdir);
535: close(startdir);
536: }
1.1 kristaps 537:
1.160 schwarze 538: if (curp.outdata != NULL) {
539: switch (curp.outtype) {
540: case OUTT_HTML:
541: html_free(curp.outdata);
542: break;
543: case OUTT_UTF8:
544: case OUTT_LOCALE:
545: case OUTT_ASCII:
546: ascii_free(curp.outdata);
547: break;
548: case OUTT_PDF:
549: case OUTT_PS:
550: pspdf_free(curp.outdata);
551: break;
552: default:
553: break;
554: }
1.158 schwarze 555: }
1.197 schwarze 556: mandoc_xr_free();
1.102 schwarze 557: mparse_free(curp.mp);
1.155 schwarze 558: mchars_free();
1.95 schwarze 559:
560: out:
561: if (search.argmode != ARG_FILE) {
1.134 schwarze 562: manconf_free(&conf);
1.95 schwarze 563: mansearch_free(res, sz);
564: }
565:
1.196 schwarze 566: free(curp.os_s);
1.1 kristaps 567:
1.129 schwarze 568: /*
1.149 schwarze 569: * When using a pager, finish writing both temporary files,
570: * fork it, wait for the user to close it, and clean up.
1.129 schwarze 571: */
572:
1.149 schwarze 573: if (tag_files != NULL) {
1.130 schwarze 574: fclose(stdout);
1.144 schwarze 575: tag_write();
1.166 schwarze 576: man_pgid = getpgid(0);
577: tag_files->tcpgid = man_pgid == getpid() ?
578: getpgid(getppid()) : man_pgid;
579: pager_pid = 0;
580: signum = SIGSTOP;
1.165 schwarze 581: for (;;) {
1.166 schwarze 582:
583: /* Stop here until moved to the foreground. */
584:
1.182 schwarze 585: tc_pgid = tcgetpgrp(tag_files->ofd);
1.166 schwarze 586: if (tc_pgid != man_pgid) {
587: if (tc_pgid == pager_pid) {
1.182 schwarze 588: (void)tcsetpgrp(tag_files->ofd,
1.166 schwarze 589: man_pgid);
590: if (signum == SIGTTIN)
591: continue;
592: } else
593: tag_files->tcpgid = tc_pgid;
594: kill(0, signum);
595: continue;
596: }
597:
598: /* Once in the foreground, activate the pager. */
599:
600: if (pager_pid) {
1.182 schwarze 601: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.166 schwarze 602: kill(pager_pid, SIGCONT);
603: } else
604: pager_pid = spawn_pager(tag_files);
605:
606: /* Wait for the pager to stop or exit. */
607:
608: while ((pid = waitpid(pager_pid, &status,
609: WUNTRACED)) == -1 && errno == EINTR)
610: continue;
611:
612: if (pid == -1) {
1.165 schwarze 613: warn("wait");
1.215 schwarze 614: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.165 schwarze 615: break;
616: }
617: if (!WIFSTOPPED(status))
618: break;
619:
1.166 schwarze 620: signum = WSTOPSIG(status);
1.165 schwarze 621: }
1.144 schwarze 622: tag_unlink();
1.130 schwarze 623: }
1.215 schwarze 624: return (int)mandoc_msg_getrc();
1.1 kristaps 625: }
626:
1.20 schwarze 627: static void
1.95 schwarze 628: usage(enum argmode argmode)
1.1 kristaps 629: {
630:
1.95 schwarze 631: switch (argmode) {
632: case ARG_FILE:
1.190 schwarze 633: fputs("usage: mandoc [-ac] [-I os=name] "
634: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.133 schwarze 635: "\t [-T output] [-W level] [file ...]\n", stderr);
1.95 schwarze 636: break;
637: case ARG_NAME:
1.190 schwarze 638: fputs("usage: man [-acfhklw] [-C file] [-M path] "
639: "[-m path] [-S subsection]\n"
640: "\t [[-s] section] name ...\n", stderr);
1.95 schwarze 641: break;
642: case ARG_WORD:
1.190 schwarze 643: fputs("usage: whatis [-afk] [-C file] "
1.96 schwarze 644: "[-M path] [-m path] [-O outkey] [-S arch]\n"
645: "\t [-s section] name ...\n", stderr);
1.95 schwarze 646: break;
647: case ARG_EXPR:
1.190 schwarze 648: fputs("usage: apropos [-afk] [-C file] "
1.96 schwarze 649: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.95 schwarze 650: "\t [-s section] expression ...\n", stderr);
651: break;
652: }
1.47 schwarze 653: exit((int)MANDOCLEVEL_BADARG);
1.119 schwarze 654: }
655:
656: static int
657: fs_lookup(const struct manpaths *paths, size_t ipath,
658: const char *sec, const char *arch, const char *name,
659: struct manpage **res, size_t *ressz)
660: {
1.127 schwarze 661: glob_t globinfo;
1.119 schwarze 662: struct manpage *page;
663: char *file;
1.177 schwarze 664: int globres;
665: enum form form;
1.119 schwarze 666:
1.127 schwarze 667: form = FORM_SRC;
1.119 schwarze 668: mandoc_asprintf(&file, "%s/man%s/%s.%s",
669: paths->paths[ipath], sec, name, sec);
1.127 schwarze 670: if (access(file, R_OK) != -1)
1.119 schwarze 671: goto found;
672: free(file);
673:
674: mandoc_asprintf(&file, "%s/cat%s/%s.0",
675: paths->paths[ipath], sec, name);
676: if (access(file, R_OK) != -1) {
677: form = FORM_CAT;
678: goto found;
679: }
680: free(file);
681:
682: if (arch != NULL) {
683: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
684: paths->paths[ipath], sec, arch, name, sec);
1.127 schwarze 685: if (access(file, R_OK) != -1)
1.119 schwarze 686: goto found;
687: free(file);
688: }
1.127 schwarze 689:
1.145 schwarze 690: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.127 schwarze 691: paths->paths[ipath], sec, name);
692: globres = glob(file, 0, NULL, &globinfo);
693: if (globres != 0 && globres != GLOB_NOMATCH)
1.152 schwarze 694: warn("%s: glob", file);
1.127 schwarze 695: free(file);
696: if (globres == 0)
697: file = mandoc_strdup(*globinfo.gl_pathv);
698: globfree(&globinfo);
1.199 schwarze 699: if (globres == 0)
700: goto found;
701: if (res != NULL || ipath + 1 != paths->sz)
1.150 schwarze 702: return 0;
1.119 schwarze 703:
1.199 schwarze 704: mandoc_asprintf(&file, "%s.%s", name, sec);
705: globres = access(file, R_OK);
706: free(file);
707: return globres != -1;
708:
1.119 schwarze 709: found:
1.152 schwarze 710: warnx("outdated mandoc.db lacks %s(%s) entry, run makewhatis %s",
711: name, sec, paths->paths[ipath]);
1.199 schwarze 712: if (res == NULL) {
713: free(file);
1.198 schwarze 714: return 1;
1.199 schwarze 715: }
1.119 schwarze 716: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
717: page = *res + (*ressz - 1);
718: page->file = file;
719: page->names = NULL;
720: page->output = NULL;
721: page->ipath = ipath;
722: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
723: page->form = form;
1.150 schwarze 724: return 1;
1.119 schwarze 725: }
726:
1.198 schwarze 727: static int
1.119 schwarze 728: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
729: int argc, char **argv, struct manpage **res, size_t *ressz)
730: {
731: const char *const sections[] =
1.171 schwarze 732: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.119 schwarze 733: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
734:
735: size_t ipath, isec, lastsz;
736:
737: assert(cfg->argmode == ARG_NAME);
738:
1.198 schwarze 739: if (res != NULL)
740: *res = NULL;
1.119 schwarze 741: *ressz = lastsz = 0;
742: while (argc) {
743: for (ipath = 0; ipath < paths->sz; ipath++) {
744: if (cfg->sec != NULL) {
745: if (fs_lookup(paths, ipath, cfg->sec,
746: cfg->arch, *argv, res, ressz) &&
747: cfg->firstmatch)
1.198 schwarze 748: return 1;
1.119 schwarze 749: } else for (isec = 0; isec < nsec; isec++)
750: if (fs_lookup(paths, ipath, sections[isec],
751: cfg->arch, *argv, res, ressz) &&
752: cfg->firstmatch)
1.198 schwarze 753: return 1;
1.119 schwarze 754: }
1.208 schwarze 755: if (res != NULL && *ressz == lastsz &&
1.210 schwarze 756: strchr(*argv, '/') == NULL) {
757: if (cfg->sec == NULL)
758: warnx("No entry for %s in the manual.",
759: *argv);
760: else
761: warnx("No entry for %s in section %s "
762: "of the manual.", *argv, cfg->sec);
763: }
1.119 schwarze 764: lastsz = *ressz;
765: argv++;
766: argc--;
767: }
1.198 schwarze 768: return 0;
1.1 kristaps 769: }
770:
1.27 schwarze 771: static void
1.132 schwarze 772: parse(struct curparse *curp, int fd, const char *file)
1.52 schwarze 773: {
1.139 schwarze 774: struct roff_man *man;
1.52 schwarze 775:
1.76 schwarze 776: /* Begin by parsing the file itself. */
1.52 schwarze 777:
1.76 schwarze 778: assert(file);
1.170 florian 779: assert(fd >= 0);
1.52 schwarze 780:
1.215 schwarze 781: mparse_readfd(curp->mp, fd, file);
1.168 schwarze 782: if (fd != STDIN_FILENO)
783: close(fd);
1.1 kristaps 784:
1.51 schwarze 785: /*
1.76 schwarze 786: * With -Wstop and warnings or errors of at least the requested
787: * level, do not produce output.
1.51 schwarze 788: */
789:
1.215 schwarze 790: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.132 schwarze 791: return;
1.51 schwarze 792:
1.179 schwarze 793: if (curp->outdata == NULL)
794: outdata_alloc(curp);
1.51 schwarze 795:
1.158 schwarze 796: mparse_result(curp->mp, &man, NULL);
797:
798: /* Execute the out device, if it exists. */
799:
800: if (man == NULL)
801: return;
1.200 schwarze 802: mandoc_xr_reset();
1.158 schwarze 803: if (man->macroset == MACROSET_MDOC) {
1.185 schwarze 804: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
805: mdoc_validate(man);
1.51 schwarze 806: switch (curp->outtype) {
1.90 schwarze 807: case OUTT_HTML:
1.158 schwarze 808: html_mdoc(curp->outdata, man);
1.51 schwarze 809: break;
1.90 schwarze 810: case OUTT_TREE:
1.158 schwarze 811: tree_mdoc(curp->outdata, man);
1.51 schwarze 812: break;
1.90 schwarze 813: case OUTT_MAN:
1.158 schwarze 814: man_mdoc(curp->outdata, man);
1.78 schwarze 815: break;
1.90 schwarze 816: case OUTT_PDF:
817: case OUTT_ASCII:
818: case OUTT_UTF8:
819: case OUTT_LOCALE:
820: case OUTT_PS:
1.158 schwarze 821: terminal_mdoc(curp->outdata, man);
822: break;
1.188 schwarze 823: case OUTT_MARKDOWN:
824: markdown_mdoc(curp->outdata, man);
825: break;
1.158 schwarze 826: default:
827: break;
828: }
829: }
830: if (man->macroset == MACROSET_MAN) {
1.185 schwarze 831: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
832: man_validate(man);
1.158 schwarze 833: switch (curp->outtype) {
834: case OUTT_HTML:
835: html_man(curp->outdata, man);
836: break;
837: case OUTT_TREE:
838: tree_man(curp->outdata, man);
839: break;
840: case OUTT_MAN:
1.211 schwarze 841: mparse_copy(curp->mp);
1.158 schwarze 842: break;
843: case OUTT_PDF:
844: case OUTT_ASCII:
845: case OUTT_UTF8:
846: case OUTT_LOCALE:
847: case OUTT_PS:
848: terminal_man(curp->outdata, man);
1.51 schwarze 849: break;
850: default:
851: break;
852: }
1.179 schwarze 853: }
1.215 schwarze 854: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
855: check_xr();
1.197 schwarze 856: }
857:
858: static void
1.215 schwarze 859: check_xr(void)
1.197 schwarze 860: {
861: static struct manpaths paths;
862: struct mansearch search;
863: struct mandoc_xr *xr;
864: size_t sz;
865:
866: if (paths.sz == 0)
867: manpath_base(&paths);
868:
869: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.200 schwarze 870: if (xr->line == -1)
871: continue;
1.197 schwarze 872: search.arch = NULL;
873: search.sec = xr->sec;
874: search.outkey = NULL;
875: search.argmode = ARG_NAME;
876: search.firstmatch = 1;
877: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.198 schwarze 878: continue;
879: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.197 schwarze 880: continue;
1.201 schwarze 881: if (xr->count == 1)
1.216 schwarze 882: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
883: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.201 schwarze 884: else
1.216 schwarze 885: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
886: xr->pos + 1, "Xr %s %s (%d times)",
1.201 schwarze 887: xr->name, xr->sec, xr->count);
1.197 schwarze 888: }
1.179 schwarze 889: }
890:
891: static void
892: outdata_alloc(struct curparse *curp)
893: {
894: switch (curp->outtype) {
895: case OUTT_HTML:
896: curp->outdata = html_alloc(curp->outopts);
897: break;
898: case OUTT_UTF8:
899: curp->outdata = utf8_alloc(curp->outopts);
900: break;
901: case OUTT_LOCALE:
902: curp->outdata = locale_alloc(curp->outopts);
903: break;
904: case OUTT_ASCII:
905: curp->outdata = ascii_alloc(curp->outopts);
906: break;
907: case OUTT_PDF:
908: curp->outdata = pdf_alloc(curp->outopts);
909: break;
910: case OUTT_PS:
911: curp->outdata = ps_alloc(curp->outopts);
912: break;
913: default:
914: break;
1.51 schwarze 915: }
1.1 kristaps 916: }
917:
1.132 schwarze 918: static void
1.105 schwarze 919: passthrough(const char *file, int fd, int synopsis_only)
1.95 schwarze 920: {
1.105 schwarze 921: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
922: const char synr[] = "SYNOPSIS";
923:
924: FILE *stream;
1.95 schwarze 925: const char *syscall;
1.164 schwarze 926: char *line, *cp;
927: size_t linesz;
1.180 schwarze 928: ssize_t len, written;
1.105 schwarze 929: int print;
1.116 schwarze 930:
1.164 schwarze 931: line = NULL;
932: linesz = 0;
1.105 schwarze 933:
1.180 schwarze 934: if (fflush(stdout) == EOF) {
935: syscall = "fflush";
936: goto fail;
937: }
938:
1.105 schwarze 939: if ((stream = fdopen(fd, "r")) == NULL) {
940: close(fd);
941: syscall = "fdopen";
942: goto fail;
943: }
1.95 schwarze 944:
1.105 schwarze 945: print = 0;
1.180 schwarze 946: while ((len = getline(&line, &linesz, stream)) != -1) {
1.164 schwarze 947: cp = line;
1.105 schwarze 948: if (synopsis_only) {
949: if (print) {
1.164 schwarze 950: if ( ! isspace((unsigned char)*cp))
1.105 schwarze 951: goto done;
1.180 schwarze 952: while (isspace((unsigned char)*cp)) {
1.164 schwarze 953: cp++;
1.180 schwarze 954: len--;
955: }
1.105 schwarze 956: } else {
1.164 schwarze 957: if (strcmp(cp, synb) == 0 ||
958: strcmp(cp, synr) == 0)
1.105 schwarze 959: print = 1;
960: continue;
961: }
962: }
1.180 schwarze 963: for (; len > 0; len -= written) {
964: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
965: continue;
1.164 schwarze 966: fclose(stream);
1.180 schwarze 967: syscall = "write";
1.164 schwarze 968: goto fail;
969: }
1.105 schwarze 970: }
1.95 schwarze 971:
1.105 schwarze 972: if (ferror(stream)) {
973: fclose(stream);
1.164 schwarze 974: syscall = "getline";
1.105 schwarze 975: goto fail;
976: }
1.101 schwarze 977:
1.105 schwarze 978: done:
1.164 schwarze 979: free(line);
1.105 schwarze 980: fclose(stream);
1.132 schwarze 981: return;
1.95 schwarze 982:
983: fail:
1.164 schwarze 984: free(line);
1.152 schwarze 985: warn("%s: SYSERR: %s", file, syscall);
1.215 schwarze 986: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.103 schwarze 987: }
988:
989: static int
990: koptions(int *options, char *arg)
991: {
992:
993: if ( ! strcmp(arg, "utf-8")) {
994: *options |= MPARSE_UTF8;
995: *options &= ~MPARSE_LATIN1;
996: } else if ( ! strcmp(arg, "iso-8859-1")) {
997: *options |= MPARSE_LATIN1;
998: *options &= ~MPARSE_UTF8;
999: } else if ( ! strcmp(arg, "us-ascii")) {
1000: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
1001: } else {
1.152 schwarze 1002: warnx("-K %s: Bad argument", arg);
1.150 schwarze 1003: return 0;
1.103 schwarze 1004: }
1.150 schwarze 1005: return 1;
1.95 schwarze 1006: }
1007:
1.189 schwarze 1008: static void
1.87 schwarze 1009: moptions(int *options, char *arg)
1.1 kristaps 1010: {
1011:
1.95 schwarze 1012: if (arg == NULL)
1.189 schwarze 1013: return;
1014: if (strcmp(arg, "doc") == 0)
1.87 schwarze 1015: *options |= MPARSE_MDOC;
1.189 schwarze 1016: else if (strcmp(arg, "an") == 0)
1.87 schwarze 1017: *options |= MPARSE_MAN;
1.1 kristaps 1018: }
1019:
1020: static int
1.22 schwarze 1021: toptions(struct curparse *curp, char *arg)
1.1 kristaps 1022: {
1023:
1024: if (0 == strcmp(arg, "ascii"))
1.22 schwarze 1025: curp->outtype = OUTT_ASCII;
1026: else if (0 == strcmp(arg, "lint")) {
1027: curp->outtype = OUTT_LINT;
1.215 schwarze 1028: mandoc_msg_setoutfile(stdout);
1029: mandoc_msg_setmin(MANDOCERR_BASE);
1.76 schwarze 1030: } else if (0 == strcmp(arg, "tree"))
1.22 schwarze 1031: curp->outtype = OUTT_TREE;
1.78 schwarze 1032: else if (0 == strcmp(arg, "man"))
1033: curp->outtype = OUTT_MAN;
1.17 schwarze 1034: else if (0 == strcmp(arg, "html"))
1.22 schwarze 1035: curp->outtype = OUTT_HTML;
1.188 schwarze 1036: else if (0 == strcmp(arg, "markdown"))
1037: curp->outtype = OUTT_MARKDOWN;
1.77 schwarze 1038: else if (0 == strcmp(arg, "utf8"))
1039: curp->outtype = OUTT_UTF8;
1040: else if (0 == strcmp(arg, "locale"))
1041: curp->outtype = OUTT_LOCALE;
1.36 schwarze 1042: else if (0 == strcmp(arg, "ps"))
1043: curp->outtype = OUTT_PS;
1.43 schwarze 1044: else if (0 == strcmp(arg, "pdf"))
1045: curp->outtype = OUTT_PDF;
1.1 kristaps 1046: else {
1.152 schwarze 1047: warnx("-T %s: Bad argument", arg);
1.150 schwarze 1048: return 0;
1.1 kristaps 1049: }
1050:
1.150 schwarze 1051: return 1;
1.1 kristaps 1052: }
1053:
1054: static int
1.45 schwarze 1055: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1056: {
1.10 schwarze 1057: char *v, *o;
1.196 schwarze 1058: const char *toks[11];
1.1 kristaps 1059:
1.45 schwarze 1060: toks[0] = "stop";
1061: toks[1] = "all";
1.196 schwarze 1062: toks[2] = "base";
1063: toks[3] = "style";
1064: toks[4] = "warning";
1065: toks[5] = "error";
1066: toks[6] = "unsupp";
1067: toks[7] = "fatal";
1068: toks[8] = "openbsd";
1069: toks[9] = "netbsd";
1070: toks[10] = NULL;
1.1 kristaps 1071:
1.10 schwarze 1072: while (*arg) {
1073: o = arg;
1.176 schwarze 1074: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.90 schwarze 1075: case 0:
1.45 schwarze 1076: curp->wstop = 1;
1.1 kristaps 1077: break;
1.90 schwarze 1078: case 1:
1079: case 2:
1.215 schwarze 1080: mandoc_msg_setmin(MANDOCERR_BASE);
1.193 schwarze 1081: break;
1082: case 3:
1.215 schwarze 1083: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1084: break;
1.193 schwarze 1085: case 4:
1.215 schwarze 1086: mandoc_msg_setmin(MANDOCERR_WARNING);
1.1 kristaps 1087: break;
1.193 schwarze 1088: case 5:
1.215 schwarze 1089: mandoc_msg_setmin(MANDOCERR_ERROR);
1.123 schwarze 1090: break;
1.193 schwarze 1091: case 6:
1.215 schwarze 1092: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.196 schwarze 1093: break;
1094: case 7:
1.215 schwarze 1095: mandoc_msg_setmin(MANDOCERR_MAX);
1.196 schwarze 1096: break;
1097: case 8:
1.215 schwarze 1098: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1099: curp->os_e = MANDOC_OS_OPENBSD;
1100: break;
1101: case 9:
1.215 schwarze 1102: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1103: curp->os_e = MANDOC_OS_NETBSD;
1.19 schwarze 1104: break;
1.1 kristaps 1105: default:
1.152 schwarze 1106: warnx("-W %s: Bad argument", o);
1.150 schwarze 1107: return 0;
1.1 kristaps 1108: }
1.10 schwarze 1109: }
1.150 schwarze 1110: return 1;
1.95 schwarze 1111: }
1112:
1.130 schwarze 1113: static pid_t
1.149 schwarze 1114: spawn_pager(struct tag_files *tag_files)
1.95 schwarze 1115: {
1.172 schwarze 1116: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.95 schwarze 1117: #define MAX_PAGER_ARGS 16
1118: char *argv[MAX_PAGER_ARGS];
1119: const char *pager;
1120: char *cp;
1.144 schwarze 1121: size_t cmdlen;
1.212 schwarze 1122: int argc, use_ofn;
1.130 schwarze 1123: pid_t pager_pid;
1.95 schwarze 1124:
1.144 schwarze 1125: pager = getenv("MANPAGER");
1126: if (pager == NULL || *pager == '\0')
1127: pager = getenv("PAGER");
1128: if (pager == NULL || *pager == '\0')
1129: pager = "more -s";
1130: cp = mandoc_strdup(pager);
1131:
1132: /*
1133: * Parse the pager command into words.
1134: * Intentionally do not do anything fancy here.
1135: */
1136:
1137: argc = 0;
1.212 schwarze 1138: while (argc + 5 < MAX_PAGER_ARGS) {
1.144 schwarze 1139: argv[argc++] = cp;
1140: cp = strchr(cp, ' ');
1141: if (cp == NULL)
1142: break;
1143: *cp++ = '\0';
1144: while (*cp == ' ')
1145: cp++;
1146: if (*cp == '\0')
1147: break;
1148: }
1149:
1.149 schwarze 1150: /* For more(1) and less(1), use the tag file. */
1.144 schwarze 1151:
1.212 schwarze 1152: use_ofn = 1;
1.149 schwarze 1153: if ((cmdlen = strlen(argv[0])) >= 4) {
1.144 schwarze 1154: cp = argv[0] + cmdlen - 4;
1.149 schwarze 1155: if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) {
1156: argv[argc++] = mandoc_strdup("-T");
1157: argv[argc++] = tag_files->tfn;
1.212 schwarze 1158: if (tag_files->tagname != NULL) {
1159: argv[argc++] = mandoc_strdup("-t");
1160: argv[argc++] = tag_files->tagname;
1161: use_ofn = 0;
1162: }
1.149 schwarze 1163: }
1.144 schwarze 1164: }
1.212 schwarze 1165: if (use_ofn)
1166: argv[argc++] = tag_files->ofn;
1.144 schwarze 1167: argv[argc] = NULL;
1168:
1.130 schwarze 1169: switch (pager_pid = fork()) {
1.95 schwarze 1170: case -1:
1.152 schwarze 1171: err((int)MANDOCLEVEL_SYSERR, "fork");
1.95 schwarze 1172: case 0:
1.129 schwarze 1173: break;
1174: default:
1.165 schwarze 1175: (void)setpgid(pager_pid, 0);
1.182 schwarze 1176: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.165 schwarze 1177: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.163 schwarze 1178: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.166 schwarze 1179: tag_files->pager_pid = pager_pid;
1.150 schwarze 1180: return pager_pid;
1.95 schwarze 1181: }
1182:
1.129 schwarze 1183: /* The child process becomes the pager. */
1.95 schwarze 1184:
1.152 schwarze 1185: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1186: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.149 schwarze 1187: close(tag_files->ofd);
1.206 tb 1188: assert(tag_files->tfd == -1);
1.172 schwarze 1189:
1190: /* Do not start the pager before controlling the terminal. */
1191:
1.182 schwarze 1192: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.172 schwarze 1193: nanosleep(&timeout, NULL);
1194:
1.95 schwarze 1195: execvp(argv[0], argv);
1.152 schwarze 1196: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.30 schwarze 1197: }