Annotation of mandoc/main.c, Revision 1.295
1.295 ! schwarze 1: /* $Id: main.c,v 1.294 2017/07/01 09:47:30 schwarze Exp $ */
1.1 kristaps 2: /*
1.183 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.278 schwarze 4: * Copyright (c) 2010-2012, 2014-2017 Ingo Schwarze <schwarze@openbsd.org>
1.169 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
1.25 kristaps 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: *
1.229 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.25 kristaps 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.229 schwarze 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.25 kristaps 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: */
1.58 kristaps 19: #include "config.h"
1.178 schwarze 20:
21: #include <sys/types.h>
1.216 schwarze 22: #include <sys/param.h> /* MACHINE */
1.224 schwarze 23: #include <sys/wait.h>
1.58 kristaps 24:
1.1 kristaps 25: #include <assert.h>
1.185 schwarze 26: #include <ctype.h>
1.256 schwarze 27: #if HAVE_ERR
1.247 schwarze 28: #include <err.h>
1.256 schwarze 29: #endif
1.258 schwarze 30: #include <errno.h>
1.186 schwarze 31: #include <fcntl.h>
1.222 schwarze 32: #include <glob.h>
1.269 kristaps 33: #if HAVE_SANDBOX_INIT
34: #include <sandbox.h>
35: #endif
1.226 schwarze 36: #include <signal.h>
1.1 kristaps 37: #include <stdio.h>
1.45 kristaps 38: #include <stdint.h>
1.1 kristaps 39: #include <stdlib.h>
40: #include <string.h>
1.265 schwarze 41: #include <time.h>
1.1 kristaps 42: #include <unistd.h>
43:
1.231 schwarze 44: #include "mandoc_aux.h"
1.71 kristaps 45: #include "mandoc.h"
1.294 schwarze 46: #include "mandoc_xr.h"
1.231 schwarze 47: #include "roff.h"
1.1 kristaps 48: #include "mdoc.h"
1.10 kristaps 49: #include "man.h"
1.239 schwarze 50: #include "tag.h"
1.231 schwarze 51: #include "main.h"
1.229 schwarze 52: #include "manconf.h"
1.180 schwarze 53: #include "mansearch.h"
1.16 kristaps 54:
1.181 schwarze 55: enum outmode {
56: OUTMODE_DEF = 0,
57: OUTMODE_FLN,
58: OUTMODE_LST,
59: OUTMODE_ALL,
60: OUTMODE_ONE
61: };
62:
1.19 kristaps 63: enum outt {
1.154 kristaps 64: OUTT_ASCII = 0, /* -Tascii */
1.162 kristaps 65: OUTT_LOCALE, /* -Tlocale */
1.163 kristaps 66: OUTT_UTF8, /* -Tutf8 */
1.154 kristaps 67: OUTT_TREE, /* -Ttree */
1.164 schwarze 68: OUTT_MAN, /* -Tman */
1.154 kristaps 69: OUTT_HTML, /* -Thtml */
1.285 schwarze 70: OUTT_MARKDOWN, /* -Tmarkdown */
1.154 kristaps 71: OUTT_LINT, /* -Tlint */
72: OUTT_PS, /* -Tps */
73: OUTT_PDF /* -Tpdf */
1.19 kristaps 74: };
75:
1.5 kristaps 76: struct curparse {
1.154 kristaps 77: struct mparse *mp;
1.293 schwarze 78: struct manoutput *outopts; /* output options */
79: void *outdata; /* data for output */
80: char *os_s; /* operating system for display */
1.148 kristaps 81: int wstop; /* stop after a file with a warning */
1.293 schwarze 82: enum mandocerr mmin; /* ignore messages below this */
83: enum mandoc_os os_e; /* check base system conventions */
1.173 schwarze 84: enum outt outtype; /* which output to use */
1.79 kristaps 85: };
1.270 schwarze 86:
87:
88: int mandocdb(int, char *[]);
1.79 kristaps 89:
1.294 schwarze 90: static void check_xr(const char *);
1.213 schwarze 91: static int fs_lookup(const struct manpaths *,
92: size_t ipath, const char *,
93: const char *, const char *,
94: struct manpage **, size_t *);
1.295 ! schwarze 95: static int fs_search(const struct mansearch *,
1.213 schwarze 96: const struct manpaths *, int, char**,
97: struct manpage **, size_t *);
1.194 schwarze 98: static int koptions(int *, char *);
1.286 schwarze 99: static void moptions(int *, char *);
1.155 kristaps 100: static void mmsg(enum mandocerr, enum mandoclevel,
101: const char *, int, int, const char *);
1.276 schwarze 102: static void outdata_alloc(struct curparse *);
1.227 schwarze 103: static void parse(struct curparse *, int, const char *);
104: static void passthrough(const char *, int, int);
1.244 schwarze 105: static pid_t spawn_pager(struct tag_files *);
1.66 kristaps 106: static int toptions(struct curparse *, char *);
1.283 schwarze 107: static void usage(enum argmode) __attribute__((__noreturn__));
1.103 schwarze 108: static int woptions(struct curparse *, char *);
1.1 kristaps 109:
1.182 schwarze 110: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.202 schwarze 111: static char help_arg[] = "help";
112: static char *help_argv[] = {help_arg, NULL};
1.226 schwarze 113: static enum mandoclevel rc;
1.1 kristaps 114:
1.173 schwarze 115:
1.1 kristaps 116: int
117: main(int argc, char *argv[])
118: {
1.229 schwarze 119: struct manconf conf;
1.282 schwarze 120: struct mansearch search;
1.5 kristaps 121: struct curparse curp;
1.244 schwarze 122: struct tag_files *tag_files;
1.282 schwarze 123: struct manpage *res, *resp;
124: const char *progname, *sec, *thisarg;
125: char *conf_file, *defpaths, *auxpaths;
1.293 schwarze 126: char *oarg;
1.207 schwarze 127: unsigned char *uc;
1.264 schwarze 128: size_t i, sz;
1.230 schwarze 129: int prio, best_prio;
1.181 schwarze 130: enum outmode outmode;
1.192 schwarze 131: int fd;
1.180 schwarze 132: int show_usage;
1.170 schwarze 133: int options;
1.244 schwarze 134: int use_pager;
1.259 schwarze 135: int status, signum;
1.180 schwarze 136: int c;
1.259 schwarze 137: pid_t pager_pid, tc_pgid, man_pgid, pid;
1.1 kristaps 138:
1.254 schwarze 139: #if HAVE_PROGNAME
140: progname = getprogname();
141: #else
1.219 schwarze 142: if (argc < 1)
1.254 schwarze 143: progname = mandoc_strdup("mandoc");
144: else if ((progname = strrchr(argv[0], '/')) == NULL)
145: progname = argv[0];
1.54 kristaps 146: else
1.254 schwarze 147: ++progname;
148: setprogname(progname);
1.247 schwarze 149: #endif
1.203 schwarze 150:
1.254 schwarze 151: if (strncmp(progname, "mandocdb", 8) == 0 ||
152: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 153: return mandocdb(argc, argv);
1.179 schwarze 154:
1.255 schwarze 155: #if HAVE_PLEDGE
1.284 schwarze 156: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
1.255 schwarze 157: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.269 kristaps 158: #endif
159:
160: #if HAVE_SANDBOX_INIT
161: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
162: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 163: #endif
164:
1.180 schwarze 165: /* Search options. */
166:
1.229 schwarze 167: memset(&conf, 0, sizeof(conf));
1.205 schwarze 168: conf_file = defpaths = NULL;
169: auxpaths = NULL;
1.180 schwarze 170:
171: memset(&search, 0, sizeof(struct mansearch));
172: search.outkey = "Nd";
1.282 schwarze 173: oarg = NULL;
1.180 schwarze 174:
1.254 schwarze 175: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 176: search.argmode = ARG_NAME;
1.254 schwarze 177: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 178: search.argmode = ARG_EXPR;
1.254 schwarze 179: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 180: search.argmode = ARG_WORD;
1.254 schwarze 181: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 182: search.argmode = ARG_NAME;
1.180 schwarze 183: else
184: search.argmode = ARG_FILE;
185:
186: /* Parser and formatter options. */
1.54 kristaps 187:
1.51 kristaps 188: memset(&curp, 0, sizeof(struct curparse));
1.201 schwarze 189: curp.outtype = OUTT_LOCALE;
1.293 schwarze 190: curp.mmin = MANDOCERR_MAX;
1.230 schwarze 191: curp.outopts = &conf.output;
1.194 schwarze 192: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.19 kristaps 193:
1.244 schwarze 194: use_pager = 1;
195: tag_files = NULL;
1.180 schwarze 196: show_usage = 0;
1.181 schwarze 197: outmode = OUTMODE_DEF;
1.183 schwarze 198:
1.289 schwarze 199: while ((c = getopt(argc, argv,
200: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
201: if (c == 'i' && search.argmode == ARG_EXPR) {
202: optind--;
203: break;
204: }
1.1 kristaps 205: switch (c) {
1.181 schwarze 206: case 'a':
207: outmode = OUTMODE_ALL;
208: break;
1.180 schwarze 209: case 'C':
210: conf_file = optarg;
211: break;
1.183 schwarze 212: case 'c':
1.244 schwarze 213: use_pager = 0;
1.183 schwarze 214: break;
1.180 schwarze 215: case 'f':
216: search.argmode = ARG_WORD;
217: break;
1.190 schwarze 218: case 'h':
1.230 schwarze 219: conf.output.synopsisonly = 1;
1.244 schwarze 220: use_pager = 0;
1.190 schwarze 221: outmode = OUTMODE_ALL;
222: break;
1.173 schwarze 223: case 'I':
1.166 schwarze 224: if (strncmp(optarg, "os=", 3)) {
1.247 schwarze 225: warnx("-I %s: Bad argument", optarg);
1.245 schwarze 226: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 227: }
1.293 schwarze 228: if (curp.os_s != NULL) {
1.247 schwarze 229: warnx("-I %s: Duplicate argument", optarg);
1.245 schwarze 230: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 231: }
1.293 schwarze 232: curp.os_s = mandoc_strdup(optarg + 3);
1.181 schwarze 233: break;
1.194 schwarze 234: case 'K':
235: if ( ! koptions(&options, optarg))
1.245 schwarze 236: return (int)MANDOCLEVEL_BADARG;
1.194 schwarze 237: break;
1.180 schwarze 238: case 'k':
239: search.argmode = ARG_EXPR;
240: break;
1.188 schwarze 241: case 'l':
242: search.argmode = ARG_FILE;
243: outmode = OUTMODE_ALL;
244: break;
1.180 schwarze 245: case 'M':
246: defpaths = optarg;
247: break;
1.173 schwarze 248: case 'm':
1.180 schwarze 249: auxpaths = optarg;
1.10 kristaps 250: break;
1.173 schwarze 251: case 'O':
1.282 schwarze 252: oarg = optarg;
1.44 kristaps 253: break;
1.180 schwarze 254: case 'S':
255: search.arch = optarg;
256: break;
257: case 's':
258: search.sec = optarg;
259: break;
1.173 schwarze 260: case 'T':
1.60 kristaps 261: if ( ! toptions(&curp, optarg))
1.245 schwarze 262: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 263: break;
1.173 schwarze 264: case 'W':
1.103 schwarze 265: if ( ! woptions(&curp, optarg))
1.245 schwarze 266: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 267: break;
1.181 schwarze 268: case 'w':
269: outmode = OUTMODE_FLN;
270: break;
1.1 kristaps 271: default:
1.180 schwarze 272: show_usage = 1;
273: break;
1.1 kristaps 274: }
1.180 schwarze 275: }
276:
277: if (show_usage)
278: usage(search.argmode);
279:
1.185 schwarze 280: /* Postprocess options. */
281:
1.181 schwarze 282: if (outmode == OUTMODE_DEF) {
283: switch (search.argmode) {
284: case ARG_FILE:
285: outmode = OUTMODE_ALL;
1.244 schwarze 286: use_pager = 0;
1.181 schwarze 287: break;
288: case ARG_NAME:
289: outmode = OUTMODE_ONE;
290: break;
291: default:
292: outmode = OUTMODE_LST;
293: break;
1.282 schwarze 294: }
295: }
296:
297: if (oarg != NULL) {
298: if (outmode == OUTMODE_LST)
299: search.outkey = oarg;
300: else {
301: while (oarg != NULL) {
302: thisarg = oarg;
303: if (manconf_output(&conf.output,
304: strsep(&oarg, ","), 0) == 0)
305: continue;
306: warnx("-O %s: Bad argument", thisarg);
307: return (int)MANDOCLEVEL_BADARG;
308: }
1.181 schwarze 309: }
310: }
311:
1.246 schwarze 312: if (outmode == OUTMODE_FLN ||
313: outmode == OUTMODE_LST ||
314: !isatty(STDOUT_FILENO))
315: use_pager = 0;
316:
1.255 schwarze 317: #if HAVE_PLEDGE
1.260 schwarze 318: if (!use_pager)
1.284 schwarze 319: if (pledge("stdio rpath", NULL) == -1)
1.260 schwarze 320: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.255 schwarze 321: #endif
322:
1.185 schwarze 323: /* Parse arguments. */
324:
1.219 schwarze 325: if (argc > 0) {
326: argc -= optind;
327: argv += optind;
328: }
1.186 schwarze 329: resp = NULL;
1.185 schwarze 330:
1.202 schwarze 331: /*
332: * Quirks for help(1)
333: * and for a man(1) section argument without -s.
334: */
335:
336: if (search.argmode == ARG_NAME) {
1.254 schwarze 337: if (*progname == 'h') {
1.202 schwarze 338: if (argc == 0) {
339: argv = help_argv;
340: argc = 1;
341: }
1.211 schwarze 342: } else if (argc > 1 &&
1.223 kristaps 343: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 344: ((isdigit(uc[0]) && (uc[1] == '\0' ||
345: (isalpha(uc[1]) && uc[2] == '\0'))) ||
346: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 347: search.sec = (char *)uc;
1.202 schwarze 348: argv++;
349: argc--;
350: }
1.216 schwarze 351: if (search.arch == NULL)
352: search.arch = getenv("MACHINE");
1.223 kristaps 353: #ifdef MACHINE
1.216 schwarze 354: if (search.arch == NULL)
355: search.arch = MACHINE;
1.223 kristaps 356: #endif
1.185 schwarze 357: }
1.182 schwarze 358:
359: rc = MANDOCLEVEL_OK;
1.180 schwarze 360:
361: /* man(1), whatis(1), apropos(1) */
362:
363: if (search.argmode != ARG_FILE) {
1.199 schwarze 364: if (search.argmode == ARG_NAME &&
365: outmode == OUTMODE_ONE)
366: search.firstmatch = 1;
1.182 schwarze 367:
368: /* Access the mandoc database. */
369:
1.229 schwarze 370: manconf_parse(&conf, conf_file, defpaths, auxpaths);
371: if ( ! mansearch(&search, &conf.manpath,
372: argc, argv, &res, &sz))
1.180 schwarze 373: usage(search.argmode);
1.213 schwarze 374:
1.237 schwarze 375: if (sz == 0) {
376: if (search.argmode == ARG_NAME)
377: fs_search(&search, &conf.manpath,
378: argc, argv, &res, &sz);
379: else
1.247 schwarze 380: warnx("nothing appropriate");
1.237 schwarze 381: }
1.187 schwarze 382:
383: if (sz == 0) {
384: rc = MANDOCLEVEL_BADARG;
385: goto out;
386: }
1.182 schwarze 387:
388: /*
389: * For standard man(1) and -a output mode,
390: * prepare for copying filename pointers
391: * into the program parameter array.
392: */
393:
394: if (outmode == OUTMODE_ONE) {
395: argc = 1;
1.264 schwarze 396: best_prio = 20;
1.186 schwarze 397: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 398: argc = (int)sz;
399:
400: /* Iterate all matching manuals. */
401:
1.213 schwarze 402: resp = res;
1.181 schwarze 403: for (i = 0; i < sz; i++) {
404: if (outmode == OUTMODE_FLN)
405: puts(res[i].file);
1.182 schwarze 406: else if (outmode == OUTMODE_LST)
1.181 schwarze 407: printf("%s - %s\n", res[i].names,
408: res[i].output == NULL ? "" :
409: res[i].output);
1.186 schwarze 410: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 411: /* Search for the best section. */
1.264 schwarze 412: sec = res[i].file;
413: sec += strcspn(sec, "123456789");
414: if (sec[0] == '\0')
1.182 schwarze 415: continue;
1.264 schwarze 416: prio = sec_prios[sec[0] - '1'];
417: if (sec[1] != '/')
418: prio += 10;
1.182 schwarze 419: if (prio >= best_prio)
420: continue;
421: best_prio = prio;
1.186 schwarze 422: resp = res + i;
1.182 schwarze 423: }
1.181 schwarze 424: }
1.182 schwarze 425:
426: /*
427: * For man(1), -a and -i output mode, fall through
428: * to the main mandoc(1) code iterating files
429: * and running the parsers on each of them.
430: */
431:
432: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
433: goto out;
1.180 schwarze 434: }
435:
436: /* mandoc(1) */
437:
1.255 schwarze 438: #if HAVE_PLEDGE
1.260 schwarze 439: if (use_pager) {
440: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
441: err((int)MANDOCLEVEL_SYSERR, "pledge");
442: } else {
443: if (pledge("stdio rpath", NULL) == -1)
444: err((int)MANDOCLEVEL_SYSERR, "pledge");
445: }
1.255 schwarze 446: #endif
447:
1.286 schwarze 448: if (search.argmode == ARG_FILE)
449: moptions(&options, auxpaths);
1.241 schwarze 450:
1.249 schwarze 451: mchars_alloc();
1.293 schwarze 452: curp.mp = mparse_alloc(options, curp.mmin, mmsg,
453: curp.os_e, curp.os_s);
1.154 kristaps 454:
1.165 kristaps 455: /*
456: * Conditionally start up the lookaside buffer before parsing.
457: */
458: if (OUTT_MAN == curp.outtype)
459: mparse_keep(curp.mp);
460:
1.219 schwarze 461: if (argc < 1) {
1.244 schwarze 462: if (use_pager)
463: tag_files = tag_init();
1.227 schwarze 464: parse(&curp, STDIN_FILENO, "<stdin>");
1.212 schwarze 465: }
1.64 kristaps 466:
1.219 schwarze 467: while (argc > 0) {
1.262 schwarze 468: fd = mparse_open(curp.mp, resp != NULL ? resp->file : *argv);
1.212 schwarze 469: if (fd != -1) {
1.244 schwarze 470: if (use_pager) {
471: tag_files = tag_init();
472: use_pager = 0;
473: }
1.212 schwarze 474:
475: if (resp == NULL)
1.227 schwarze 476: parse(&curp, fd, *argv);
1.274 schwarze 477: else if (resp->form == FORM_SRC) {
1.189 schwarze 478: /* For .so only; ignore failure. */
1.229 schwarze 479: chdir(conf.manpath.paths[resp->ipath]);
1.227 schwarze 480: parse(&curp, fd, resp->file);
481: } else
1.230 schwarze 482: passthrough(resp->file, fd,
483: conf.output.synopsisonly);
1.212 schwarze 484:
1.276 schwarze 485: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
486: if (curp.outdata == NULL)
487: outdata_alloc(&curp);
1.267 schwarze 488: terminal_sepline(curp.outdata);
1.276 schwarze 489: }
1.262 schwarze 490: } else if (rc < MANDOCLEVEL_ERROR)
491: rc = MANDOCLEVEL_ERROR;
1.192 schwarze 492:
1.154 kristaps 493: if (MANDOCLEVEL_OK != rc && curp.wstop)
1.64 kristaps 494: break;
1.210 schwarze 495:
1.212 schwarze 496: if (resp != NULL)
497: resp++;
498: else
499: argv++;
500: if (--argc)
501: mparse_reset(curp.mp);
1.1 kristaps 502: }
503:
1.252 schwarze 504: if (curp.outdata != NULL) {
505: switch (curp.outtype) {
506: case OUTT_HTML:
507: html_free(curp.outdata);
508: break;
509: case OUTT_UTF8:
510: case OUTT_LOCALE:
511: case OUTT_ASCII:
512: ascii_free(curp.outdata);
513: break;
514: case OUTT_PDF:
515: case OUTT_PS:
516: pspdf_free(curp.outdata);
517: break;
518: default:
519: break;
520: }
1.250 schwarze 521: }
1.294 schwarze 522: mandoc_xr_free();
1.195 schwarze 523: mparse_free(curp.mp);
1.249 schwarze 524: mchars_free();
1.182 schwarze 525:
526: out:
527: if (search.argmode != ARG_FILE) {
1.229 schwarze 528: manconf_free(&conf);
1.182 schwarze 529: mansearch_free(res, sz);
530: }
531:
1.293 schwarze 532: free(curp.os_s);
1.1 kristaps 533:
1.224 schwarze 534: /*
1.244 schwarze 535: * When using a pager, finish writing both temporary files,
536: * fork it, wait for the user to close it, and clean up.
1.224 schwarze 537: */
538:
1.244 schwarze 539: if (tag_files != NULL) {
1.225 schwarze 540: fclose(stdout);
1.239 schwarze 541: tag_write();
1.259 schwarze 542: man_pgid = getpgid(0);
543: tag_files->tcpgid = man_pgid == getpid() ?
544: getpgid(getppid()) : man_pgid;
545: pager_pid = 0;
546: signum = SIGSTOP;
1.258 schwarze 547: for (;;) {
1.259 schwarze 548:
549: /* Stop here until moved to the foreground. */
550:
1.279 schwarze 551: tc_pgid = tcgetpgrp(tag_files->ofd);
1.259 schwarze 552: if (tc_pgid != man_pgid) {
553: if (tc_pgid == pager_pid) {
1.279 schwarze 554: (void)tcsetpgrp(tag_files->ofd,
1.259 schwarze 555: man_pgid);
556: if (signum == SIGTTIN)
557: continue;
558: } else
559: tag_files->tcpgid = tc_pgid;
560: kill(0, signum);
561: continue;
562: }
563:
564: /* Once in the foreground, activate the pager. */
565:
566: if (pager_pid) {
1.279 schwarze 567: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.259 schwarze 568: kill(pager_pid, SIGCONT);
569: } else
570: pager_pid = spawn_pager(tag_files);
571:
572: /* Wait for the pager to stop or exit. */
573:
574: while ((pid = waitpid(pager_pid, &status,
575: WUNTRACED)) == -1 && errno == EINTR)
576: continue;
577:
578: if (pid == -1) {
1.258 schwarze 579: warn("wait");
580: rc = MANDOCLEVEL_SYSERR;
581: break;
582: }
583: if (!WIFSTOPPED(status))
584: break;
585:
1.259 schwarze 586: signum = WSTOPSIG(status);
1.258 schwarze 587: }
1.239 schwarze 588: tag_unlink();
1.225 schwarze 589: }
1.224 schwarze 590:
1.245 schwarze 591: return (int)rc;
1.1 kristaps 592: }
593:
1.55 kristaps 594: static void
1.180 schwarze 595: usage(enum argmode argmode)
1.1 kristaps 596: {
597:
1.180 schwarze 598: switch (argmode) {
599: case ARG_FILE:
1.287 schwarze 600: fputs("usage: mandoc [-ac] [-I os=name] "
601: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 602: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 603: break;
604: case ARG_NAME:
1.287 schwarze 605: fputs("usage: man [-acfhklw] [-C file] [-M path] "
606: "[-m path] [-S subsection]\n"
607: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 608: break;
609: case ARG_WORD:
1.287 schwarze 610: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 611: "[-M path] [-m path] [-O outkey] [-S arch]\n"
612: "\t [-s section] name ...\n", stderr);
1.180 schwarze 613: break;
614: case ARG_EXPR:
1.287 schwarze 615: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 616: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 617: "\t [-s section] expression ...\n", stderr);
618: break;
619: }
1.105 kristaps 620: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 621: }
1.213 schwarze 622:
623: static int
624: fs_lookup(const struct manpaths *paths, size_t ipath,
625: const char *sec, const char *arch, const char *name,
626: struct manpage **res, size_t *ressz)
627: {
1.222 schwarze 628: glob_t globinfo;
1.213 schwarze 629: struct manpage *page;
630: char *file;
1.274 schwarze 631: int globres;
632: enum form form;
1.213 schwarze 633:
1.222 schwarze 634: form = FORM_SRC;
1.213 schwarze 635: mandoc_asprintf(&file, "%s/man%s/%s.%s",
636: paths->paths[ipath], sec, name, sec);
1.222 schwarze 637: if (access(file, R_OK) != -1)
1.213 schwarze 638: goto found;
639: free(file);
640:
641: mandoc_asprintf(&file, "%s/cat%s/%s.0",
642: paths->paths[ipath], sec, name);
643: if (access(file, R_OK) != -1) {
644: form = FORM_CAT;
645: goto found;
646: }
647: free(file);
648:
649: if (arch != NULL) {
650: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
651: paths->paths[ipath], sec, arch, name, sec);
1.222 schwarze 652: if (access(file, R_OK) != -1)
1.213 schwarze 653: goto found;
654: free(file);
655: }
1.222 schwarze 656:
1.240 schwarze 657: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 658: paths->paths[ipath], sec, name);
659: globres = glob(file, 0, NULL, &globinfo);
660: if (globres != 0 && globres != GLOB_NOMATCH)
1.247 schwarze 661: warn("%s: glob", file);
1.222 schwarze 662: free(file);
663: if (globres == 0)
664: file = mandoc_strdup(*globinfo.gl_pathv);
665: globfree(&globinfo);
666: if (globres != 0)
1.245 schwarze 667: return 0;
1.213 schwarze 668:
669: found:
1.266 schwarze 670: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
671: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.295 ! schwarze 672: if (res == NULL)
! 673: return 1;
1.213 schwarze 674: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
675: page = *res + (*ressz - 1);
676: page->file = file;
677: page->names = NULL;
678: page->output = NULL;
679: page->ipath = ipath;
680: page->bits = NAME_FILE & NAME_MASK;
681: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
682: page->form = form;
1.245 schwarze 683: return 1;
1.213 schwarze 684: }
685:
1.295 ! schwarze 686: static int
1.213 schwarze 687: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
688: int argc, char **argv, struct manpage **res, size_t *ressz)
689: {
690: const char *const sections[] =
1.264 schwarze 691: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 692: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
693:
694: size_t ipath, isec, lastsz;
695:
696: assert(cfg->argmode == ARG_NAME);
697:
1.295 ! schwarze 698: if (res != NULL)
! 699: *res = NULL;
1.213 schwarze 700: *ressz = lastsz = 0;
701: while (argc) {
702: for (ipath = 0; ipath < paths->sz; ipath++) {
703: if (cfg->sec != NULL) {
704: if (fs_lookup(paths, ipath, cfg->sec,
705: cfg->arch, *argv, res, ressz) &&
706: cfg->firstmatch)
1.295 ! schwarze 707: return 1;
1.213 schwarze 708: } else for (isec = 0; isec < nsec; isec++)
709: if (fs_lookup(paths, ipath, sections[isec],
710: cfg->arch, *argv, res, ressz) &&
711: cfg->firstmatch)
1.295 ! schwarze 712: return 1;
1.213 schwarze 713: }
1.295 ! schwarze 714: if (res != NULL && *ressz == lastsz)
1.247 schwarze 715: warnx("No entry for %s in the manual.", *argv);
1.213 schwarze 716: lastsz = *ressz;
717: argv++;
718: argc--;
719: }
1.295 ! schwarze 720: return 0;
1.213 schwarze 721: }
1.68 joerg 722:
1.64 kristaps 723: static void
1.227 schwarze 724: parse(struct curparse *curp, int fd, const char *file)
1.1 kristaps 725: {
1.227 schwarze 726: enum mandoclevel rctmp;
1.234 schwarze 727: struct roff_man *man;
1.112 kristaps 728:
1.154 kristaps 729: /* Begin by parsing the file itself. */
1.112 kristaps 730:
1.154 kristaps 731: assert(file);
1.263 schwarze 732: assert(fd >= 0);
1.112 kristaps 733:
1.227 schwarze 734: rctmp = mparse_readfd(curp->mp, fd, file);
1.261 schwarze 735: if (fd != STDIN_FILENO)
736: close(fd);
1.227 schwarze 737: if (rc < rctmp)
738: rc = rctmp;
1.112 kristaps 739:
1.1 kristaps 740: /*
1.154 kristaps 741: * With -Wstop and warnings or errors of at least the requested
742: * level, do not produce output.
1.1 kristaps 743: */
744:
1.227 schwarze 745: if (rctmp != MANDOCLEVEL_OK && curp->wstop)
746: return;
1.111 kristaps 747:
1.276 schwarze 748: if (curp->outdata == NULL)
749: outdata_alloc(curp);
1.111 kristaps 750:
1.250 schwarze 751: mparse_result(curp->mp, &man, NULL);
752:
753: /* Execute the out device, if it exists. */
754:
755: if (man == NULL)
756: return;
1.294 schwarze 757: if (curp->mmin < MANDOCERR_STYLE)
758: mandoc_xr_reset();
1.250 schwarze 759: if (man->macroset == MACROSET_MDOC) {
1.281 schwarze 760: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
761: mdoc_validate(man);
1.111 kristaps 762: switch (curp->outtype) {
1.173 schwarze 763: case OUTT_HTML:
1.250 schwarze 764: html_mdoc(curp->outdata, man);
1.111 kristaps 765: break;
1.173 schwarze 766: case OUTT_TREE:
1.250 schwarze 767: tree_mdoc(curp->outdata, man);
1.111 kristaps 768: break;
1.173 schwarze 769: case OUTT_MAN:
1.250 schwarze 770: man_mdoc(curp->outdata, man);
1.164 schwarze 771: break;
1.173 schwarze 772: case OUTT_PDF:
773: case OUTT_ASCII:
774: case OUTT_UTF8:
775: case OUTT_LOCALE:
776: case OUTT_PS:
1.250 schwarze 777: terminal_mdoc(curp->outdata, man);
778: break;
1.285 schwarze 779: case OUTT_MARKDOWN:
780: markdown_mdoc(curp->outdata, man);
781: break;
1.250 schwarze 782: default:
783: break;
784: }
785: }
786: if (man->macroset == MACROSET_MAN) {
1.281 schwarze 787: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
788: man_validate(man);
1.250 schwarze 789: switch (curp->outtype) {
790: case OUTT_HTML:
791: html_man(curp->outdata, man);
792: break;
793: case OUTT_TREE:
794: tree_man(curp->outdata, man);
795: break;
796: case OUTT_MAN:
797: man_man(curp->outdata, man);
798: break;
799: case OUTT_PDF:
800: case OUTT_ASCII:
801: case OUTT_UTF8:
802: case OUTT_LOCALE:
803: case OUTT_PS:
804: terminal_man(curp->outdata, man);
1.111 kristaps 805: break;
806: default:
807: break;
808: }
1.276 schwarze 809: }
1.294 schwarze 810: check_xr(file);
1.278 schwarze 811: mparse_updaterc(curp->mp, &rc);
1.294 schwarze 812: }
813:
814: static void
815: check_xr(const char *file)
816: {
817: static struct manpaths paths;
818: struct mansearch search;
819: struct mandoc_xr *xr;
820: char *cp;
821: size_t sz;
822:
823: if (paths.sz == 0)
824: manpath_base(&paths);
825:
826: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
827: search.arch = NULL;
828: search.sec = xr->sec;
829: search.outkey = NULL;
830: search.argmode = ARG_NAME;
831: search.firstmatch = 1;
832: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 ! schwarze 833: continue;
! 834: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.294 schwarze 835: continue;
836: mandoc_asprintf(&cp, "Xr %s %s", xr->name, xr->sec);
837: mmsg(MANDOCERR_XR_BAD, MANDOCLEVEL_STYLE,
838: file, xr->line, xr->pos + 1, cp);
839: free(cp);
840: }
1.276 schwarze 841: }
842:
843: static void
844: outdata_alloc(struct curparse *curp)
845: {
846: switch (curp->outtype) {
847: case OUTT_HTML:
848: curp->outdata = html_alloc(curp->outopts);
849: break;
850: case OUTT_UTF8:
851: curp->outdata = utf8_alloc(curp->outopts);
852: break;
853: case OUTT_LOCALE:
854: curp->outdata = locale_alloc(curp->outopts);
855: break;
856: case OUTT_ASCII:
857: curp->outdata = ascii_alloc(curp->outopts);
858: break;
859: case OUTT_PDF:
860: curp->outdata = pdf_alloc(curp->outopts);
861: break;
862: case OUTT_PS:
863: curp->outdata = ps_alloc(curp->outopts);
864: break;
865: default:
866: break;
1.111 kristaps 867: }
1.186 schwarze 868: }
869:
1.227 schwarze 870: static void
1.197 schwarze 871: passthrough(const char *file, int fd, int synopsis_only)
1.186 schwarze 872: {
1.197 schwarze 873: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
874: const char synr[] = "SYNOPSIS";
875:
876: FILE *stream;
1.186 schwarze 877: const char *syscall;
1.257 schwarze 878: char *line, *cp;
879: size_t linesz;
1.277 schwarze 880: ssize_t len, written;
1.197 schwarze 881: int print;
1.210 schwarze 882:
1.257 schwarze 883: line = NULL;
884: linesz = 0;
1.197 schwarze 885:
1.277 schwarze 886: if (fflush(stdout) == EOF) {
887: syscall = "fflush";
888: goto fail;
889: }
890:
1.197 schwarze 891: if ((stream = fdopen(fd, "r")) == NULL) {
892: close(fd);
893: syscall = "fdopen";
894: goto fail;
895: }
1.186 schwarze 896:
1.197 schwarze 897: print = 0;
1.277 schwarze 898: while ((len = getline(&line, &linesz, stream)) != -1) {
1.257 schwarze 899: cp = line;
1.197 schwarze 900: if (synopsis_only) {
901: if (print) {
1.257 schwarze 902: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 903: goto done;
1.277 schwarze 904: while (isspace((unsigned char)*cp)) {
1.257 schwarze 905: cp++;
1.277 schwarze 906: len--;
907: }
1.197 schwarze 908: } else {
1.257 schwarze 909: if (strcmp(cp, synb) == 0 ||
910: strcmp(cp, synr) == 0)
1.197 schwarze 911: print = 1;
912: continue;
913: }
914: }
1.277 schwarze 915: for (; len > 0; len -= written) {
916: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
917: continue;
1.257 schwarze 918: fclose(stream);
1.277 schwarze 919: syscall = "write";
1.257 schwarze 920: goto fail;
921: }
1.197 schwarze 922: }
1.186 schwarze 923:
1.197 schwarze 924: if (ferror(stream)) {
925: fclose(stream);
1.257 schwarze 926: syscall = "getline";
1.197 schwarze 927: goto fail;
928: }
1.193 schwarze 929:
1.197 schwarze 930: done:
1.257 schwarze 931: free(line);
1.197 schwarze 932: fclose(stream);
1.227 schwarze 933: return;
1.186 schwarze 934:
935: fail:
1.257 schwarze 936: free(line);
1.247 schwarze 937: warn("%s: SYSERR: %s", file, syscall);
1.227 schwarze 938: if (rc < MANDOCLEVEL_SYSERR)
939: rc = MANDOCLEVEL_SYSERR;
1.194 schwarze 940: }
941:
942: static int
943: koptions(int *options, char *arg)
944: {
945:
946: if ( ! strcmp(arg, "utf-8")) {
947: *options |= MPARSE_UTF8;
948: *options &= ~MPARSE_LATIN1;
949: } else if ( ! strcmp(arg, "iso-8859-1")) {
950: *options |= MPARSE_LATIN1;
951: *options &= ~MPARSE_UTF8;
952: } else if ( ! strcmp(arg, "us-ascii")) {
953: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
954: } else {
1.247 schwarze 955: warnx("-K %s: Bad argument", arg);
1.245 schwarze 956: return 0;
1.194 schwarze 957: }
1.245 schwarze 958: return 1;
1.10 kristaps 959: }
960:
1.286 schwarze 961: static void
1.170 schwarze 962: moptions(int *options, char *arg)
1.10 kristaps 963: {
964:
1.180 schwarze 965: if (arg == NULL)
1.286 schwarze 966: return;
967: if (strcmp(arg, "doc") == 0)
1.170 schwarze 968: *options |= MPARSE_MDOC;
1.286 schwarze 969: else if (strcmp(arg, "an") == 0)
1.170 schwarze 970: *options |= MPARSE_MAN;
1.1 kristaps 971: }
972:
973: static int
1.60 kristaps 974: toptions(struct curparse *curp, char *arg)
1.1 kristaps 975: {
976:
977: if (0 == strcmp(arg, "ascii"))
1.60 kristaps 978: curp->outtype = OUTT_ASCII;
979: else if (0 == strcmp(arg, "lint")) {
980: curp->outtype = OUTT_LINT;
1.293 schwarze 981: curp->mmin = MANDOCERR_BASE;
1.154 kristaps 982: } else if (0 == strcmp(arg, "tree"))
1.60 kristaps 983: curp->outtype = OUTT_TREE;
1.164 schwarze 984: else if (0 == strcmp(arg, "man"))
985: curp->outtype = OUTT_MAN;
1.43 kristaps 986: else if (0 == strcmp(arg, "html"))
1.60 kristaps 987: curp->outtype = OUTT_HTML;
1.285 schwarze 988: else if (0 == strcmp(arg, "markdown"))
989: curp->outtype = OUTT_MARKDOWN;
1.163 kristaps 990: else if (0 == strcmp(arg, "utf8"))
991: curp->outtype = OUTT_UTF8;
1.162 kristaps 992: else if (0 == strcmp(arg, "locale"))
993: curp->outtype = OUTT_LOCALE;
1.85 kristaps 994: else if (0 == strcmp(arg, "ps"))
995: curp->outtype = OUTT_PS;
1.100 kristaps 996: else if (0 == strcmp(arg, "pdf"))
997: curp->outtype = OUTT_PDF;
1.1 kristaps 998: else {
1.247 schwarze 999: warnx("-T %s: Bad argument", arg);
1.245 schwarze 1000: return 0;
1.1 kristaps 1001: }
1002:
1.245 schwarze 1003: return 1;
1.1 kristaps 1004: }
1005:
1006: static int
1.103 schwarze 1007: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1008: {
1.34 kristaps 1009: char *v, *o;
1.293 schwarze 1010: const char *toks[11];
1.1 kristaps 1011:
1.103 schwarze 1012: toks[0] = "stop";
1013: toks[1] = "all";
1.293 schwarze 1014: toks[2] = "base";
1015: toks[3] = "style";
1016: toks[4] = "warning";
1017: toks[5] = "error";
1018: toks[6] = "unsupp";
1019: toks[7] = "fatal";
1020: toks[8] = "openbsd";
1021: toks[9] = "netbsd";
1022: toks[10] = NULL;
1.1 kristaps 1023:
1.34 kristaps 1024: while (*arg) {
1025: o = arg;
1.272 schwarze 1026: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1027: case 0:
1.103 schwarze 1028: curp->wstop = 1;
1.1 kristaps 1029: break;
1.173 schwarze 1030: case 1:
1031: case 2:
1.293 schwarze 1032: curp->mmin = MANDOCERR_BASE;
1.290 schwarze 1033: break;
1034: case 3:
1.293 schwarze 1035: curp->mmin = MANDOCERR_STYLE;
1.1 kristaps 1036: break;
1.290 schwarze 1037: case 4:
1.293 schwarze 1038: curp->mmin = MANDOCERR_WARNING;
1.24 kristaps 1039: break;
1.290 schwarze 1040: case 5:
1.293 schwarze 1041: curp->mmin = MANDOCERR_ERROR;
1.217 schwarze 1042: break;
1.290 schwarze 1043: case 6:
1.293 schwarze 1044: curp->mmin = MANDOCERR_UNSUPP;
1045: break;
1046: case 7:
1047: curp->mmin = MANDOCERR_MAX;
1048: break;
1049: case 8:
1050: curp->mmin = MANDOCERR_BASE;
1051: curp->os_e = MANDOC_OS_OPENBSD;
1052: break;
1053: case 9:
1054: curp->mmin = MANDOCERR_BASE;
1055: curp->os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1056: break;
1.1 kristaps 1057: default:
1.247 schwarze 1058: warnx("-W %s: Bad argument", o);
1.245 schwarze 1059: return 0;
1.1 kristaps 1060: }
1.34 kristaps 1061: }
1.245 schwarze 1062: return 1;
1.1 kristaps 1063: }
1064:
1.153 kristaps 1065: static void
1.173 schwarze 1066: mmsg(enum mandocerr t, enum mandoclevel lvl,
1.155 kristaps 1067: const char *file, int line, int col, const char *msg)
1.71 kristaps 1068: {
1.177 schwarze 1069: const char *mparse_msg;
1.103 schwarze 1070:
1.275 schwarze 1071: fprintf(stderr, "%s: %s:", getprogname(),
1072: file == NULL ? "<stdin>" : file);
1.175 schwarze 1073:
1074: if (line)
1075: fprintf(stderr, "%d:%d:", line, col + 1);
1076:
1.293 schwarze 1077: fprintf(stderr, " %s",
1078: t < MANDOCERR_STYLE ? "BASE" : mparse_strlevel(lvl));
1.177 schwarze 1079:
1.293 schwarze 1080: if ((mparse_msg = mparse_strerror(t)) != NULL)
1.177 schwarze 1081: fprintf(stderr, ": %s", mparse_msg);
1.154 kristaps 1082:
1.73 kristaps 1083: if (msg)
1084: fprintf(stderr, ": %s", msg);
1.154 kristaps 1085:
1.73 kristaps 1086: fputc('\n', stderr);
1.183 schwarze 1087: }
1088:
1.225 schwarze 1089: static pid_t
1.244 schwarze 1090: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1091: {
1.265 schwarze 1092: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1093: #define MAX_PAGER_ARGS 16
1094: char *argv[MAX_PAGER_ARGS];
1095: const char *pager;
1096: char *cp;
1.239 schwarze 1097: size_t cmdlen;
1.184 schwarze 1098: int argc;
1.225 schwarze 1099: pid_t pager_pid;
1.183 schwarze 1100:
1.239 schwarze 1101: pager = getenv("MANPAGER");
1102: if (pager == NULL || *pager == '\0')
1103: pager = getenv("PAGER");
1104: if (pager == NULL || *pager == '\0')
1105: pager = "more -s";
1106: cp = mandoc_strdup(pager);
1107:
1108: /*
1109: * Parse the pager command into words.
1110: * Intentionally do not do anything fancy here.
1111: */
1112:
1113: argc = 0;
1114: while (argc + 4 < MAX_PAGER_ARGS) {
1115: argv[argc++] = cp;
1116: cp = strchr(cp, ' ');
1117: if (cp == NULL)
1118: break;
1119: *cp++ = '\0';
1120: while (*cp == ' ')
1121: cp++;
1122: if (*cp == '\0')
1123: break;
1124: }
1125:
1.268 schwarze 1126: /* For less(1), use the tag file. */
1.239 schwarze 1127:
1.244 schwarze 1128: if ((cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1129: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1130: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1131: argv[argc++] = mandoc_strdup("-T");
1132: argv[argc++] = tag_files->tfn;
1133: }
1.239 schwarze 1134: }
1.244 schwarze 1135: argv[argc++] = tag_files->ofn;
1.239 schwarze 1136: argv[argc] = NULL;
1137:
1.225 schwarze 1138: switch (pager_pid = fork()) {
1.183 schwarze 1139: case -1:
1.247 schwarze 1140: err((int)MANDOCLEVEL_SYSERR, "fork");
1.183 schwarze 1141: case 0:
1.224 schwarze 1142: break;
1143: default:
1.258 schwarze 1144: (void)setpgid(pager_pid, 0);
1.279 schwarze 1145: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1146: #if HAVE_PLEDGE
1.258 schwarze 1147: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.255 schwarze 1148: err((int)MANDOCLEVEL_SYSERR, "pledge");
1149: #endif
1.259 schwarze 1150: tag_files->pager_pid = pager_pid;
1.245 schwarze 1151: return pager_pid;
1.184 schwarze 1152: }
1153:
1.224 schwarze 1154: /* The child process becomes the pager. */
1.184 schwarze 1155:
1.247 schwarze 1156: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1157: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.244 schwarze 1158: close(tag_files->ofd);
1159: close(tag_files->tfd);
1.265 schwarze 1160:
1161: /* Do not start the pager before controlling the terminal. */
1162:
1.279 schwarze 1163: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1164: nanosleep(&timeout, NULL);
1165:
1.184 schwarze 1166: execvp(argv[0], argv);
1.247 schwarze 1167: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.71 kristaps 1168: }
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