Annotation of mandoc/main.c, Revision 1.301
1.301 ! schwarze 1: /* $Id: main.c,v 1.300 2017/07/20 15:26:41 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;
1.300 schwarze 114: static FILE *mmsg_stream;
1.1 kristaps 115:
1.173 schwarze 116:
1.1 kristaps 117: int
118: main(int argc, char *argv[])
119: {
1.229 schwarze 120: struct manconf conf;
1.282 schwarze 121: struct mansearch search;
1.5 kristaps 122: struct curparse curp;
1.244 schwarze 123: struct tag_files *tag_files;
1.282 schwarze 124: struct manpage *res, *resp;
125: const char *progname, *sec, *thisarg;
126: char *conf_file, *defpaths, *auxpaths;
1.293 schwarze 127: char *oarg;
1.207 schwarze 128: unsigned char *uc;
1.264 schwarze 129: size_t i, sz;
1.230 schwarze 130: int prio, best_prio;
1.181 schwarze 131: enum outmode outmode;
1.192 schwarze 132: int fd;
1.180 schwarze 133: int show_usage;
1.170 schwarze 134: int options;
1.244 schwarze 135: int use_pager;
1.259 schwarze 136: int status, signum;
1.180 schwarze 137: int c;
1.259 schwarze 138: pid_t pager_pid, tc_pgid, man_pgid, pid;
1.1 kristaps 139:
1.254 schwarze 140: #if HAVE_PROGNAME
141: progname = getprogname();
142: #else
1.219 schwarze 143: if (argc < 1)
1.254 schwarze 144: progname = mandoc_strdup("mandoc");
145: else if ((progname = strrchr(argv[0], '/')) == NULL)
146: progname = argv[0];
1.54 kristaps 147: else
1.254 schwarze 148: ++progname;
149: setprogname(progname);
1.247 schwarze 150: #endif
1.203 schwarze 151:
1.254 schwarze 152: if (strncmp(progname, "mandocdb", 8) == 0 ||
153: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 154: return mandocdb(argc, argv);
1.179 schwarze 155:
1.255 schwarze 156: #if HAVE_PLEDGE
1.284 schwarze 157: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
1.255 schwarze 158: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.269 kristaps 159: #endif
160:
161: #if HAVE_SANDBOX_INIT
162: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
163: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 164: #endif
165:
1.180 schwarze 166: /* Search options. */
167:
1.229 schwarze 168: memset(&conf, 0, sizeof(conf));
1.205 schwarze 169: conf_file = defpaths = NULL;
170: auxpaths = NULL;
1.180 schwarze 171:
172: memset(&search, 0, sizeof(struct mansearch));
173: search.outkey = "Nd";
1.282 schwarze 174: oarg = NULL;
1.180 schwarze 175:
1.254 schwarze 176: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 177: search.argmode = ARG_NAME;
1.254 schwarze 178: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 179: search.argmode = ARG_EXPR;
1.254 schwarze 180: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 181: search.argmode = ARG_WORD;
1.254 schwarze 182: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 183: search.argmode = ARG_NAME;
1.180 schwarze 184: else
185: search.argmode = ARG_FILE;
186:
187: /* Parser and formatter options. */
1.54 kristaps 188:
1.51 kristaps 189: memset(&curp, 0, sizeof(struct curparse));
1.201 schwarze 190: curp.outtype = OUTT_LOCALE;
1.293 schwarze 191: curp.mmin = MANDOCERR_MAX;
1.230 schwarze 192: curp.outopts = &conf.output;
1.194 schwarze 193: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.300 schwarze 194: mmsg_stream = stderr;
1.19 kristaps 195:
1.244 schwarze 196: use_pager = 1;
197: tag_files = NULL;
1.180 schwarze 198: show_usage = 0;
1.181 schwarze 199: outmode = OUTMODE_DEF;
1.183 schwarze 200:
1.289 schwarze 201: while ((c = getopt(argc, argv,
202: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
203: if (c == 'i' && search.argmode == ARG_EXPR) {
204: optind--;
205: break;
206: }
1.1 kristaps 207: switch (c) {
1.181 schwarze 208: case 'a':
209: outmode = OUTMODE_ALL;
210: break;
1.180 schwarze 211: case 'C':
212: conf_file = optarg;
213: break;
1.183 schwarze 214: case 'c':
1.244 schwarze 215: use_pager = 0;
1.183 schwarze 216: break;
1.180 schwarze 217: case 'f':
218: search.argmode = ARG_WORD;
219: break;
1.190 schwarze 220: case 'h':
1.230 schwarze 221: conf.output.synopsisonly = 1;
1.244 schwarze 222: use_pager = 0;
1.190 schwarze 223: outmode = OUTMODE_ALL;
224: break;
1.173 schwarze 225: case 'I':
1.166 schwarze 226: if (strncmp(optarg, "os=", 3)) {
1.247 schwarze 227: warnx("-I %s: Bad argument", optarg);
1.245 schwarze 228: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 229: }
1.293 schwarze 230: if (curp.os_s != NULL) {
1.247 schwarze 231: warnx("-I %s: Duplicate argument", optarg);
1.245 schwarze 232: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 233: }
1.293 schwarze 234: curp.os_s = mandoc_strdup(optarg + 3);
1.181 schwarze 235: break;
1.194 schwarze 236: case 'K':
237: if ( ! koptions(&options, optarg))
1.245 schwarze 238: return (int)MANDOCLEVEL_BADARG;
1.194 schwarze 239: break;
1.180 schwarze 240: case 'k':
241: search.argmode = ARG_EXPR;
242: break;
1.188 schwarze 243: case 'l':
244: search.argmode = ARG_FILE;
245: outmode = OUTMODE_ALL;
246: break;
1.180 schwarze 247: case 'M':
248: defpaths = optarg;
249: break;
1.173 schwarze 250: case 'm':
1.180 schwarze 251: auxpaths = optarg;
1.10 kristaps 252: break;
1.173 schwarze 253: case 'O':
1.282 schwarze 254: oarg = optarg;
1.44 kristaps 255: break;
1.180 schwarze 256: case 'S':
257: search.arch = optarg;
258: break;
259: case 's':
260: search.sec = optarg;
261: break;
1.173 schwarze 262: case 'T':
1.60 kristaps 263: if ( ! toptions(&curp, optarg))
1.245 schwarze 264: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 265: break;
1.173 schwarze 266: case 'W':
1.103 schwarze 267: if ( ! woptions(&curp, optarg))
1.245 schwarze 268: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 269: break;
1.181 schwarze 270: case 'w':
271: outmode = OUTMODE_FLN;
272: break;
1.1 kristaps 273: default:
1.180 schwarze 274: show_usage = 1;
275: break;
1.1 kristaps 276: }
1.180 schwarze 277: }
278:
279: if (show_usage)
280: usage(search.argmode);
281:
1.185 schwarze 282: /* Postprocess options. */
283:
1.181 schwarze 284: if (outmode == OUTMODE_DEF) {
285: switch (search.argmode) {
286: case ARG_FILE:
287: outmode = OUTMODE_ALL;
1.244 schwarze 288: use_pager = 0;
1.181 schwarze 289: break;
290: case ARG_NAME:
291: outmode = OUTMODE_ONE;
292: break;
293: default:
294: outmode = OUTMODE_LST;
295: break;
1.282 schwarze 296: }
297: }
298:
299: if (oarg != NULL) {
300: if (outmode == OUTMODE_LST)
301: search.outkey = oarg;
302: else {
303: while (oarg != NULL) {
304: thisarg = oarg;
305: if (manconf_output(&conf.output,
306: strsep(&oarg, ","), 0) == 0)
307: continue;
308: warnx("-O %s: Bad argument", thisarg);
309: return (int)MANDOCLEVEL_BADARG;
310: }
1.181 schwarze 311: }
312: }
313:
1.246 schwarze 314: if (outmode == OUTMODE_FLN ||
315: outmode == OUTMODE_LST ||
316: !isatty(STDOUT_FILENO))
317: use_pager = 0;
318:
1.255 schwarze 319: #if HAVE_PLEDGE
1.260 schwarze 320: if (!use_pager)
1.284 schwarze 321: if (pledge("stdio rpath", NULL) == -1)
1.260 schwarze 322: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.255 schwarze 323: #endif
324:
1.185 schwarze 325: /* Parse arguments. */
326:
1.219 schwarze 327: if (argc > 0) {
328: argc -= optind;
329: argv += optind;
330: }
1.186 schwarze 331: resp = NULL;
1.185 schwarze 332:
1.202 schwarze 333: /*
334: * Quirks for help(1)
335: * and for a man(1) section argument without -s.
336: */
337:
338: if (search.argmode == ARG_NAME) {
1.254 schwarze 339: if (*progname == 'h') {
1.202 schwarze 340: if (argc == 0) {
341: argv = help_argv;
342: argc = 1;
343: }
1.211 schwarze 344: } else if (argc > 1 &&
1.223 kristaps 345: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 346: ((isdigit(uc[0]) && (uc[1] == '\0' ||
347: (isalpha(uc[1]) && uc[2] == '\0'))) ||
348: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 349: search.sec = (char *)uc;
1.202 schwarze 350: argv++;
351: argc--;
352: }
1.216 schwarze 353: if (search.arch == NULL)
354: search.arch = getenv("MACHINE");
1.223 kristaps 355: #ifdef MACHINE
1.216 schwarze 356: if (search.arch == NULL)
357: search.arch = MACHINE;
1.223 kristaps 358: #endif
1.185 schwarze 359: }
1.182 schwarze 360:
361: rc = MANDOCLEVEL_OK;
1.180 schwarze 362:
363: /* man(1), whatis(1), apropos(1) */
364:
365: if (search.argmode != ARG_FILE) {
1.199 schwarze 366: if (search.argmode == ARG_NAME &&
367: outmode == OUTMODE_ONE)
368: search.firstmatch = 1;
1.182 schwarze 369:
370: /* Access the mandoc database. */
371:
1.229 schwarze 372: manconf_parse(&conf, conf_file, defpaths, auxpaths);
373: if ( ! mansearch(&search, &conf.manpath,
374: argc, argv, &res, &sz))
1.180 schwarze 375: usage(search.argmode);
1.213 schwarze 376:
1.237 schwarze 377: if (sz == 0) {
378: if (search.argmode == ARG_NAME)
379: fs_search(&search, &conf.manpath,
380: argc, argv, &res, &sz);
381: else
1.247 schwarze 382: warnx("nothing appropriate");
1.237 schwarze 383: }
1.187 schwarze 384:
385: if (sz == 0) {
386: rc = MANDOCLEVEL_BADARG;
387: goto out;
388: }
1.182 schwarze 389:
390: /*
391: * For standard man(1) and -a output mode,
392: * prepare for copying filename pointers
393: * into the program parameter array.
394: */
395:
396: if (outmode == OUTMODE_ONE) {
397: argc = 1;
1.264 schwarze 398: best_prio = 20;
1.186 schwarze 399: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 400: argc = (int)sz;
401:
402: /* Iterate all matching manuals. */
403:
1.213 schwarze 404: resp = res;
1.181 schwarze 405: for (i = 0; i < sz; i++) {
406: if (outmode == OUTMODE_FLN)
407: puts(res[i].file);
1.182 schwarze 408: else if (outmode == OUTMODE_LST)
1.181 schwarze 409: printf("%s - %s\n", res[i].names,
410: res[i].output == NULL ? "" :
411: res[i].output);
1.186 schwarze 412: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 413: /* Search for the best section. */
1.264 schwarze 414: sec = res[i].file;
415: sec += strcspn(sec, "123456789");
416: if (sec[0] == '\0')
1.182 schwarze 417: continue;
1.264 schwarze 418: prio = sec_prios[sec[0] - '1'];
419: if (sec[1] != '/')
420: prio += 10;
1.182 schwarze 421: if (prio >= best_prio)
422: continue;
423: best_prio = prio;
1.186 schwarze 424: resp = res + i;
1.182 schwarze 425: }
1.181 schwarze 426: }
1.182 schwarze 427:
428: /*
429: * For man(1), -a and -i output mode, fall through
430: * to the main mandoc(1) code iterating files
431: * and running the parsers on each of them.
432: */
433:
434: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
435: goto out;
1.180 schwarze 436: }
437:
438: /* mandoc(1) */
439:
1.255 schwarze 440: #if HAVE_PLEDGE
1.260 schwarze 441: if (use_pager) {
442: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
443: err((int)MANDOCLEVEL_SYSERR, "pledge");
444: } else {
445: if (pledge("stdio rpath", NULL) == -1)
446: err((int)MANDOCLEVEL_SYSERR, "pledge");
447: }
1.255 schwarze 448: #endif
449:
1.286 schwarze 450: if (search.argmode == ARG_FILE)
451: moptions(&options, auxpaths);
1.241 schwarze 452:
1.249 schwarze 453: mchars_alloc();
1.293 schwarze 454: curp.mp = mparse_alloc(options, curp.mmin, mmsg,
455: curp.os_e, curp.os_s);
1.154 kristaps 456:
1.165 kristaps 457: /*
458: * Conditionally start up the lookaside buffer before parsing.
459: */
460: if (OUTT_MAN == curp.outtype)
461: mparse_keep(curp.mp);
462:
1.219 schwarze 463: if (argc < 1) {
1.244 schwarze 464: if (use_pager)
465: tag_files = tag_init();
1.227 schwarze 466: parse(&curp, STDIN_FILENO, "<stdin>");
1.212 schwarze 467: }
1.64 kristaps 468:
1.219 schwarze 469: while (argc > 0) {
1.262 schwarze 470: fd = mparse_open(curp.mp, resp != NULL ? resp->file : *argv);
1.212 schwarze 471: if (fd != -1) {
1.244 schwarze 472: if (use_pager) {
473: tag_files = tag_init();
474: use_pager = 0;
475: }
1.212 schwarze 476:
477: if (resp == NULL)
1.227 schwarze 478: parse(&curp, fd, *argv);
1.274 schwarze 479: else if (resp->form == FORM_SRC) {
1.189 schwarze 480: /* For .so only; ignore failure. */
1.301 ! schwarze 481: (void)chdir(conf.manpath.paths[resp->ipath]);
1.227 schwarze 482: parse(&curp, fd, resp->file);
483: } else
1.230 schwarze 484: passthrough(resp->file, fd,
485: conf.output.synopsisonly);
1.212 schwarze 486:
1.276 schwarze 487: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
488: if (curp.outdata == NULL)
489: outdata_alloc(&curp);
1.267 schwarze 490: terminal_sepline(curp.outdata);
1.276 schwarze 491: }
1.262 schwarze 492: } else if (rc < MANDOCLEVEL_ERROR)
493: rc = MANDOCLEVEL_ERROR;
1.192 schwarze 494:
1.154 kristaps 495: if (MANDOCLEVEL_OK != rc && curp.wstop)
1.64 kristaps 496: break;
1.210 schwarze 497:
1.212 schwarze 498: if (resp != NULL)
499: resp++;
500: else
501: argv++;
502: if (--argc)
503: mparse_reset(curp.mp);
1.1 kristaps 504: }
505:
1.252 schwarze 506: if (curp.outdata != NULL) {
507: switch (curp.outtype) {
508: case OUTT_HTML:
509: html_free(curp.outdata);
510: break;
511: case OUTT_UTF8:
512: case OUTT_LOCALE:
513: case OUTT_ASCII:
514: ascii_free(curp.outdata);
515: break;
516: case OUTT_PDF:
517: case OUTT_PS:
518: pspdf_free(curp.outdata);
519: break;
520: default:
521: break;
522: }
1.250 schwarze 523: }
1.294 schwarze 524: mandoc_xr_free();
1.195 schwarze 525: mparse_free(curp.mp);
1.249 schwarze 526: mchars_free();
1.182 schwarze 527:
528: out:
529: if (search.argmode != ARG_FILE) {
1.229 schwarze 530: manconf_free(&conf);
1.182 schwarze 531: mansearch_free(res, sz);
532: }
533:
1.293 schwarze 534: free(curp.os_s);
1.1 kristaps 535:
1.224 schwarze 536: /*
1.244 schwarze 537: * When using a pager, finish writing both temporary files,
538: * fork it, wait for the user to close it, and clean up.
1.224 schwarze 539: */
540:
1.244 schwarze 541: if (tag_files != NULL) {
1.225 schwarze 542: fclose(stdout);
1.239 schwarze 543: tag_write();
1.259 schwarze 544: man_pgid = getpgid(0);
545: tag_files->tcpgid = man_pgid == getpid() ?
546: getpgid(getppid()) : man_pgid;
547: pager_pid = 0;
548: signum = SIGSTOP;
1.258 schwarze 549: for (;;) {
1.259 schwarze 550:
551: /* Stop here until moved to the foreground. */
552:
1.279 schwarze 553: tc_pgid = tcgetpgrp(tag_files->ofd);
1.259 schwarze 554: if (tc_pgid != man_pgid) {
555: if (tc_pgid == pager_pid) {
1.279 schwarze 556: (void)tcsetpgrp(tag_files->ofd,
1.259 schwarze 557: man_pgid);
558: if (signum == SIGTTIN)
559: continue;
560: } else
561: tag_files->tcpgid = tc_pgid;
562: kill(0, signum);
563: continue;
564: }
565:
566: /* Once in the foreground, activate the pager. */
567:
568: if (pager_pid) {
1.279 schwarze 569: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.259 schwarze 570: kill(pager_pid, SIGCONT);
571: } else
572: pager_pid = spawn_pager(tag_files);
573:
574: /* Wait for the pager to stop or exit. */
575:
576: while ((pid = waitpid(pager_pid, &status,
577: WUNTRACED)) == -1 && errno == EINTR)
578: continue;
579:
580: if (pid == -1) {
1.258 schwarze 581: warn("wait");
582: rc = MANDOCLEVEL_SYSERR;
583: break;
584: }
585: if (!WIFSTOPPED(status))
586: break;
587:
1.259 schwarze 588: signum = WSTOPSIG(status);
1.258 schwarze 589: }
1.239 schwarze 590: tag_unlink();
1.225 schwarze 591: }
1.224 schwarze 592:
1.245 schwarze 593: return (int)rc;
1.1 kristaps 594: }
595:
1.55 kristaps 596: static void
1.180 schwarze 597: usage(enum argmode argmode)
1.1 kristaps 598: {
599:
1.180 schwarze 600: switch (argmode) {
601: case ARG_FILE:
1.287 schwarze 602: fputs("usage: mandoc [-ac] [-I os=name] "
603: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 604: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 605: break;
606: case ARG_NAME:
1.287 schwarze 607: fputs("usage: man [-acfhklw] [-C file] [-M path] "
608: "[-m path] [-S subsection]\n"
609: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 610: break;
611: case ARG_WORD:
1.287 schwarze 612: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 613: "[-M path] [-m path] [-O outkey] [-S arch]\n"
614: "\t [-s section] name ...\n", stderr);
1.180 schwarze 615: break;
616: case ARG_EXPR:
1.287 schwarze 617: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 618: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 619: "\t [-s section] expression ...\n", stderr);
620: break;
621: }
1.105 kristaps 622: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 623: }
1.213 schwarze 624:
625: static int
626: fs_lookup(const struct manpaths *paths, size_t ipath,
627: const char *sec, const char *arch, const char *name,
628: struct manpage **res, size_t *ressz)
629: {
1.222 schwarze 630: glob_t globinfo;
1.213 schwarze 631: struct manpage *page;
632: char *file;
1.274 schwarze 633: int globres;
634: enum form form;
1.213 schwarze 635:
1.222 schwarze 636: form = FORM_SRC;
1.213 schwarze 637: mandoc_asprintf(&file, "%s/man%s/%s.%s",
638: paths->paths[ipath], sec, name, sec);
1.222 schwarze 639: if (access(file, R_OK) != -1)
1.213 schwarze 640: goto found;
641: free(file);
642:
643: mandoc_asprintf(&file, "%s/cat%s/%s.0",
644: paths->paths[ipath], sec, name);
645: if (access(file, R_OK) != -1) {
646: form = FORM_CAT;
647: goto found;
648: }
649: free(file);
650:
651: if (arch != NULL) {
652: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
653: paths->paths[ipath], sec, arch, name, sec);
1.222 schwarze 654: if (access(file, R_OK) != -1)
1.213 schwarze 655: goto found;
656: free(file);
657: }
1.222 schwarze 658:
1.240 schwarze 659: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 660: paths->paths[ipath], sec, name);
661: globres = glob(file, 0, NULL, &globinfo);
662: if (globres != 0 && globres != GLOB_NOMATCH)
1.247 schwarze 663: warn("%s: glob", file);
1.222 schwarze 664: free(file);
665: if (globres == 0)
666: file = mandoc_strdup(*globinfo.gl_pathv);
667: globfree(&globinfo);
1.296 schwarze 668: if (globres == 0)
669: goto found;
670: if (res != NULL || ipath + 1 != paths->sz)
1.245 schwarze 671: return 0;
1.213 schwarze 672:
1.296 schwarze 673: mandoc_asprintf(&file, "%s.%s", name, sec);
674: globres = access(file, R_OK);
675: free(file);
676: return globres != -1;
677:
1.213 schwarze 678: found:
1.266 schwarze 679: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
680: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 681: if (res == NULL) {
682: free(file);
1.295 schwarze 683: return 1;
1.296 schwarze 684: }
1.213 schwarze 685: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
686: page = *res + (*ressz - 1);
687: page->file = file;
688: page->names = NULL;
689: page->output = NULL;
690: page->ipath = ipath;
691: page->bits = NAME_FILE & NAME_MASK;
692: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
693: page->form = form;
1.245 schwarze 694: return 1;
1.213 schwarze 695: }
696:
1.295 schwarze 697: static int
1.213 schwarze 698: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
699: int argc, char **argv, struct manpage **res, size_t *ressz)
700: {
701: const char *const sections[] =
1.264 schwarze 702: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 703: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
704:
705: size_t ipath, isec, lastsz;
706:
707: assert(cfg->argmode == ARG_NAME);
708:
1.295 schwarze 709: if (res != NULL)
710: *res = NULL;
1.213 schwarze 711: *ressz = lastsz = 0;
712: while (argc) {
713: for (ipath = 0; ipath < paths->sz; ipath++) {
714: if (cfg->sec != NULL) {
715: if (fs_lookup(paths, ipath, cfg->sec,
716: cfg->arch, *argv, res, ressz) &&
717: cfg->firstmatch)
1.295 schwarze 718: return 1;
1.213 schwarze 719: } else for (isec = 0; isec < nsec; isec++)
720: if (fs_lookup(paths, ipath, sections[isec],
721: cfg->arch, *argv, res, ressz) &&
722: cfg->firstmatch)
1.295 schwarze 723: return 1;
1.213 schwarze 724: }
1.295 schwarze 725: if (res != NULL && *ressz == lastsz)
1.247 schwarze 726: warnx("No entry for %s in the manual.", *argv);
1.213 schwarze 727: lastsz = *ressz;
728: argv++;
729: argc--;
730: }
1.295 schwarze 731: return 0;
1.213 schwarze 732: }
1.68 joerg 733:
1.64 kristaps 734: static void
1.227 schwarze 735: parse(struct curparse *curp, int fd, const char *file)
1.1 kristaps 736: {
1.227 schwarze 737: enum mandoclevel rctmp;
1.234 schwarze 738: struct roff_man *man;
1.112 kristaps 739:
1.154 kristaps 740: /* Begin by parsing the file itself. */
1.112 kristaps 741:
1.154 kristaps 742: assert(file);
1.263 schwarze 743: assert(fd >= 0);
1.112 kristaps 744:
1.227 schwarze 745: rctmp = mparse_readfd(curp->mp, fd, file);
1.261 schwarze 746: if (fd != STDIN_FILENO)
747: close(fd);
1.227 schwarze 748: if (rc < rctmp)
749: rc = rctmp;
1.112 kristaps 750:
1.1 kristaps 751: /*
1.154 kristaps 752: * With -Wstop and warnings or errors of at least the requested
753: * level, do not produce output.
1.1 kristaps 754: */
755:
1.227 schwarze 756: if (rctmp != MANDOCLEVEL_OK && curp->wstop)
757: return;
1.111 kristaps 758:
1.276 schwarze 759: if (curp->outdata == NULL)
760: outdata_alloc(curp);
1.111 kristaps 761:
1.250 schwarze 762: mparse_result(curp->mp, &man, NULL);
763:
764: /* Execute the out device, if it exists. */
765:
766: if (man == NULL)
767: return;
1.297 schwarze 768: mandoc_xr_reset();
1.250 schwarze 769: if (man->macroset == MACROSET_MDOC) {
1.281 schwarze 770: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
771: mdoc_validate(man);
1.111 kristaps 772: switch (curp->outtype) {
1.173 schwarze 773: case OUTT_HTML:
1.250 schwarze 774: html_mdoc(curp->outdata, man);
1.111 kristaps 775: break;
1.173 schwarze 776: case OUTT_TREE:
1.250 schwarze 777: tree_mdoc(curp->outdata, man);
1.111 kristaps 778: break;
1.173 schwarze 779: case OUTT_MAN:
1.250 schwarze 780: man_mdoc(curp->outdata, man);
1.164 schwarze 781: break;
1.173 schwarze 782: case OUTT_PDF:
783: case OUTT_ASCII:
784: case OUTT_UTF8:
785: case OUTT_LOCALE:
786: case OUTT_PS:
1.250 schwarze 787: terminal_mdoc(curp->outdata, man);
788: break;
1.285 schwarze 789: case OUTT_MARKDOWN:
790: markdown_mdoc(curp->outdata, man);
791: break;
1.250 schwarze 792: default:
793: break;
794: }
795: }
796: if (man->macroset == MACROSET_MAN) {
1.281 schwarze 797: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
798: man_validate(man);
1.250 schwarze 799: switch (curp->outtype) {
800: case OUTT_HTML:
801: html_man(curp->outdata, man);
802: break;
803: case OUTT_TREE:
804: tree_man(curp->outdata, man);
805: break;
806: case OUTT_MAN:
807: man_man(curp->outdata, man);
808: break;
809: case OUTT_PDF:
810: case OUTT_ASCII:
811: case OUTT_UTF8:
812: case OUTT_LOCALE:
813: case OUTT_PS:
814: terminal_man(curp->outdata, man);
1.111 kristaps 815: break;
816: default:
817: break;
818: }
1.276 schwarze 819: }
1.297 schwarze 820: if (curp->mmin < MANDOCERR_STYLE)
821: check_xr(file);
1.278 schwarze 822: mparse_updaterc(curp->mp, &rc);
1.294 schwarze 823: }
824:
825: static void
826: check_xr(const char *file)
827: {
828: static struct manpaths paths;
829: struct mansearch search;
830: struct mandoc_xr *xr;
831: char *cp;
832: size_t sz;
833:
834: if (paths.sz == 0)
835: manpath_base(&paths);
836:
837: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 838: if (xr->line == -1)
839: continue;
1.294 schwarze 840: search.arch = NULL;
841: search.sec = xr->sec;
842: search.outkey = NULL;
843: search.argmode = ARG_NAME;
844: search.firstmatch = 1;
845: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 846: continue;
847: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.294 schwarze 848: continue;
1.298 schwarze 849: if (xr->count == 1)
850: mandoc_asprintf(&cp, "Xr %s %s", xr->name, xr->sec);
851: else
852: mandoc_asprintf(&cp, "Xr %s %s (%d times)",
853: xr->name, xr->sec, xr->count);
1.294 schwarze 854: mmsg(MANDOCERR_XR_BAD, MANDOCLEVEL_STYLE,
855: file, xr->line, xr->pos + 1, cp);
856: free(cp);
857: }
1.276 schwarze 858: }
859:
860: static void
861: outdata_alloc(struct curparse *curp)
862: {
863: switch (curp->outtype) {
864: case OUTT_HTML:
865: curp->outdata = html_alloc(curp->outopts);
866: break;
867: case OUTT_UTF8:
868: curp->outdata = utf8_alloc(curp->outopts);
869: break;
870: case OUTT_LOCALE:
871: curp->outdata = locale_alloc(curp->outopts);
872: break;
873: case OUTT_ASCII:
874: curp->outdata = ascii_alloc(curp->outopts);
875: break;
876: case OUTT_PDF:
877: curp->outdata = pdf_alloc(curp->outopts);
878: break;
879: case OUTT_PS:
880: curp->outdata = ps_alloc(curp->outopts);
881: break;
882: default:
883: break;
1.111 kristaps 884: }
1.186 schwarze 885: }
886:
1.227 schwarze 887: static void
1.197 schwarze 888: passthrough(const char *file, int fd, int synopsis_only)
1.186 schwarze 889: {
1.197 schwarze 890: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
891: const char synr[] = "SYNOPSIS";
892:
893: FILE *stream;
1.186 schwarze 894: const char *syscall;
1.257 schwarze 895: char *line, *cp;
896: size_t linesz;
1.277 schwarze 897: ssize_t len, written;
1.197 schwarze 898: int print;
1.210 schwarze 899:
1.257 schwarze 900: line = NULL;
901: linesz = 0;
1.197 schwarze 902:
1.277 schwarze 903: if (fflush(stdout) == EOF) {
904: syscall = "fflush";
905: goto fail;
906: }
907:
1.197 schwarze 908: if ((stream = fdopen(fd, "r")) == NULL) {
909: close(fd);
910: syscall = "fdopen";
911: goto fail;
912: }
1.186 schwarze 913:
1.197 schwarze 914: print = 0;
1.277 schwarze 915: while ((len = getline(&line, &linesz, stream)) != -1) {
1.257 schwarze 916: cp = line;
1.197 schwarze 917: if (synopsis_only) {
918: if (print) {
1.257 schwarze 919: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 920: goto done;
1.277 schwarze 921: while (isspace((unsigned char)*cp)) {
1.257 schwarze 922: cp++;
1.277 schwarze 923: len--;
924: }
1.197 schwarze 925: } else {
1.257 schwarze 926: if (strcmp(cp, synb) == 0 ||
927: strcmp(cp, synr) == 0)
1.197 schwarze 928: print = 1;
929: continue;
930: }
931: }
1.277 schwarze 932: for (; len > 0; len -= written) {
933: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
934: continue;
1.257 schwarze 935: fclose(stream);
1.277 schwarze 936: syscall = "write";
1.257 schwarze 937: goto fail;
938: }
1.197 schwarze 939: }
1.186 schwarze 940:
1.197 schwarze 941: if (ferror(stream)) {
942: fclose(stream);
1.257 schwarze 943: syscall = "getline";
1.197 schwarze 944: goto fail;
945: }
1.193 schwarze 946:
1.197 schwarze 947: done:
1.257 schwarze 948: free(line);
1.197 schwarze 949: fclose(stream);
1.227 schwarze 950: return;
1.186 schwarze 951:
952: fail:
1.257 schwarze 953: free(line);
1.247 schwarze 954: warn("%s: SYSERR: %s", file, syscall);
1.227 schwarze 955: if (rc < MANDOCLEVEL_SYSERR)
956: rc = MANDOCLEVEL_SYSERR;
1.194 schwarze 957: }
958:
959: static int
960: koptions(int *options, char *arg)
961: {
962:
963: if ( ! strcmp(arg, "utf-8")) {
964: *options |= MPARSE_UTF8;
965: *options &= ~MPARSE_LATIN1;
966: } else if ( ! strcmp(arg, "iso-8859-1")) {
967: *options |= MPARSE_LATIN1;
968: *options &= ~MPARSE_UTF8;
969: } else if ( ! strcmp(arg, "us-ascii")) {
970: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
971: } else {
1.247 schwarze 972: warnx("-K %s: Bad argument", arg);
1.245 schwarze 973: return 0;
1.194 schwarze 974: }
1.245 schwarze 975: return 1;
1.10 kristaps 976: }
977:
1.286 schwarze 978: static void
1.170 schwarze 979: moptions(int *options, char *arg)
1.10 kristaps 980: {
981:
1.180 schwarze 982: if (arg == NULL)
1.286 schwarze 983: return;
984: if (strcmp(arg, "doc") == 0)
1.170 schwarze 985: *options |= MPARSE_MDOC;
1.286 schwarze 986: else if (strcmp(arg, "an") == 0)
1.170 schwarze 987: *options |= MPARSE_MAN;
1.1 kristaps 988: }
989:
990: static int
1.60 kristaps 991: toptions(struct curparse *curp, char *arg)
1.1 kristaps 992: {
993:
994: if (0 == strcmp(arg, "ascii"))
1.60 kristaps 995: curp->outtype = OUTT_ASCII;
996: else if (0 == strcmp(arg, "lint")) {
997: curp->outtype = OUTT_LINT;
1.293 schwarze 998: curp->mmin = MANDOCERR_BASE;
1.300 schwarze 999: mmsg_stream = stdout;
1.154 kristaps 1000: } else if (0 == strcmp(arg, "tree"))
1.60 kristaps 1001: curp->outtype = OUTT_TREE;
1.164 schwarze 1002: else if (0 == strcmp(arg, "man"))
1003: curp->outtype = OUTT_MAN;
1.43 kristaps 1004: else if (0 == strcmp(arg, "html"))
1.60 kristaps 1005: curp->outtype = OUTT_HTML;
1.285 schwarze 1006: else if (0 == strcmp(arg, "markdown"))
1007: curp->outtype = OUTT_MARKDOWN;
1.163 kristaps 1008: else if (0 == strcmp(arg, "utf8"))
1009: curp->outtype = OUTT_UTF8;
1.162 kristaps 1010: else if (0 == strcmp(arg, "locale"))
1011: curp->outtype = OUTT_LOCALE;
1.85 kristaps 1012: else if (0 == strcmp(arg, "ps"))
1013: curp->outtype = OUTT_PS;
1.100 kristaps 1014: else if (0 == strcmp(arg, "pdf"))
1015: curp->outtype = OUTT_PDF;
1.1 kristaps 1016: else {
1.247 schwarze 1017: warnx("-T %s: Bad argument", arg);
1.245 schwarze 1018: return 0;
1.1 kristaps 1019: }
1020:
1.245 schwarze 1021: return 1;
1.1 kristaps 1022: }
1023:
1024: static int
1.103 schwarze 1025: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1026: {
1.34 kristaps 1027: char *v, *o;
1.293 schwarze 1028: const char *toks[11];
1.1 kristaps 1029:
1.103 schwarze 1030: toks[0] = "stop";
1031: toks[1] = "all";
1.293 schwarze 1032: toks[2] = "base";
1033: toks[3] = "style";
1034: toks[4] = "warning";
1035: toks[5] = "error";
1036: toks[6] = "unsupp";
1037: toks[7] = "fatal";
1038: toks[8] = "openbsd";
1039: toks[9] = "netbsd";
1040: toks[10] = NULL;
1.1 kristaps 1041:
1.34 kristaps 1042: while (*arg) {
1043: o = arg;
1.272 schwarze 1044: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1045: case 0:
1.103 schwarze 1046: curp->wstop = 1;
1.1 kristaps 1047: break;
1.173 schwarze 1048: case 1:
1049: case 2:
1.293 schwarze 1050: curp->mmin = MANDOCERR_BASE;
1.290 schwarze 1051: break;
1052: case 3:
1.293 schwarze 1053: curp->mmin = MANDOCERR_STYLE;
1.1 kristaps 1054: break;
1.290 schwarze 1055: case 4:
1.293 schwarze 1056: curp->mmin = MANDOCERR_WARNING;
1.24 kristaps 1057: break;
1.290 schwarze 1058: case 5:
1.293 schwarze 1059: curp->mmin = MANDOCERR_ERROR;
1.217 schwarze 1060: break;
1.290 schwarze 1061: case 6:
1.293 schwarze 1062: curp->mmin = MANDOCERR_UNSUPP;
1063: break;
1064: case 7:
1065: curp->mmin = MANDOCERR_MAX;
1066: break;
1067: case 8:
1068: curp->mmin = MANDOCERR_BASE;
1069: curp->os_e = MANDOC_OS_OPENBSD;
1070: break;
1071: case 9:
1072: curp->mmin = MANDOCERR_BASE;
1073: curp->os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1074: break;
1.1 kristaps 1075: default:
1.247 schwarze 1076: warnx("-W %s: Bad argument", o);
1.245 schwarze 1077: return 0;
1.1 kristaps 1078: }
1.34 kristaps 1079: }
1.245 schwarze 1080: return 1;
1.1 kristaps 1081: }
1082:
1.153 kristaps 1083: static void
1.173 schwarze 1084: mmsg(enum mandocerr t, enum mandoclevel lvl,
1.155 kristaps 1085: const char *file, int line, int col, const char *msg)
1.71 kristaps 1086: {
1.177 schwarze 1087: const char *mparse_msg;
1.103 schwarze 1088:
1.300 schwarze 1089: fprintf(mmsg_stream, "%s: %s:", getprogname(),
1.275 schwarze 1090: file == NULL ? "<stdin>" : file);
1.175 schwarze 1091:
1092: if (line)
1.300 schwarze 1093: fprintf(mmsg_stream, "%d:%d:", line, col + 1);
1.175 schwarze 1094:
1.300 schwarze 1095: fprintf(mmsg_stream, " %s", mparse_strlevel(lvl));
1.177 schwarze 1096:
1.293 schwarze 1097: if ((mparse_msg = mparse_strerror(t)) != NULL)
1.300 schwarze 1098: fprintf(mmsg_stream, ": %s", mparse_msg);
1.154 kristaps 1099:
1.73 kristaps 1100: if (msg)
1.300 schwarze 1101: fprintf(mmsg_stream, ": %s", msg);
1.154 kristaps 1102:
1.300 schwarze 1103: fputc('\n', mmsg_stream);
1.183 schwarze 1104: }
1105:
1.225 schwarze 1106: static pid_t
1.244 schwarze 1107: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1108: {
1.265 schwarze 1109: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1110: #define MAX_PAGER_ARGS 16
1111: char *argv[MAX_PAGER_ARGS];
1112: const char *pager;
1113: char *cp;
1.239 schwarze 1114: size_t cmdlen;
1.184 schwarze 1115: int argc;
1.225 schwarze 1116: pid_t pager_pid;
1.183 schwarze 1117:
1.239 schwarze 1118: pager = getenv("MANPAGER");
1119: if (pager == NULL || *pager == '\0')
1120: pager = getenv("PAGER");
1121: if (pager == NULL || *pager == '\0')
1122: pager = "more -s";
1123: cp = mandoc_strdup(pager);
1124:
1125: /*
1126: * Parse the pager command into words.
1127: * Intentionally do not do anything fancy here.
1128: */
1129:
1130: argc = 0;
1131: while (argc + 4 < MAX_PAGER_ARGS) {
1132: argv[argc++] = cp;
1133: cp = strchr(cp, ' ');
1134: if (cp == NULL)
1135: break;
1136: *cp++ = '\0';
1137: while (*cp == ' ')
1138: cp++;
1139: if (*cp == '\0')
1140: break;
1141: }
1142:
1.268 schwarze 1143: /* For less(1), use the tag file. */
1.239 schwarze 1144:
1.244 schwarze 1145: if ((cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1146: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1147: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1148: argv[argc++] = mandoc_strdup("-T");
1149: argv[argc++] = tag_files->tfn;
1150: }
1.239 schwarze 1151: }
1.244 schwarze 1152: argv[argc++] = tag_files->ofn;
1.239 schwarze 1153: argv[argc] = NULL;
1154:
1.225 schwarze 1155: switch (pager_pid = fork()) {
1.183 schwarze 1156: case -1:
1.247 schwarze 1157: err((int)MANDOCLEVEL_SYSERR, "fork");
1.183 schwarze 1158: case 0:
1.224 schwarze 1159: break;
1160: default:
1.258 schwarze 1161: (void)setpgid(pager_pid, 0);
1.279 schwarze 1162: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1163: #if HAVE_PLEDGE
1.258 schwarze 1164: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.255 schwarze 1165: err((int)MANDOCLEVEL_SYSERR, "pledge");
1166: #endif
1.259 schwarze 1167: tag_files->pager_pid = pager_pid;
1.245 schwarze 1168: return pager_pid;
1.184 schwarze 1169: }
1170:
1.224 schwarze 1171: /* The child process becomes the pager. */
1.184 schwarze 1172:
1.247 schwarze 1173: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1174: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.244 schwarze 1175: close(tag_files->ofd);
1176: close(tag_files->tfd);
1.265 schwarze 1177:
1178: /* Do not start the pager before controlling the terminal. */
1179:
1.279 schwarze 1180: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1181: nanosleep(&timeout, NULL);
1182:
1.184 schwarze 1183: execvp(argv[0], argv);
1.247 schwarze 1184: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.71 kristaps 1185: }
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