Annotation of src/usr.bin/mandoc/main.c, Revision 1.219
1.219 ! schwarze 1: /* $OpenBSD: main.c,v 1.218 2018/12/30 00:48:47 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;
1.219 ! schwarze 120: char *oarg, *tagarg;
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:
1.218 schwarze 287: if (curp.outtype != OUTT_TREE || !curp.outopts->noval)
288: options |= MPARSE_VALIDATE;
289:
1.151 schwarze 290: if (outmode == OUTMODE_FLN ||
291: outmode == OUTMODE_LST ||
292: !isatty(STDOUT_FILENO))
293: use_pager = 0;
1.207 schwarze 294:
295: if (use_pager &&
296: (conf.output.width == 0 || conf.output.indent == 0) &&
1.209 schwarze 297: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
298: ws.ws_col > 1) {
1.207 schwarze 299: if (conf.output.width == 0 && ws.ws_col < 79)
300: conf.output.width = ws.ws_col - 1;
301: if (conf.output.indent == 0 && ws.ws_col < 66)
302: conf.output.indent = 3;
303: }
1.151 schwarze 304:
1.167 schwarze 305: if (!use_pager)
1.187 schwarze 306: if (pledge("stdio rpath", NULL) == -1)
1.167 schwarze 307: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.154 schwarze 308:
1.95 schwarze 309: /* Parse arguments. */
310:
1.124 schwarze 311: if (argc > 0) {
312: argc -= optind;
313: argv += optind;
314: }
1.95 schwarze 315: resp = NULL;
316:
1.110 schwarze 317: /*
318: * Quirks for help(1)
319: * and for a man(1) section argument without -s.
320: */
321:
322: if (search.argmode == ARG_NAME) {
1.162 schwarze 323: if (*progname == 'h') {
1.110 schwarze 324: if (argc == 0) {
325: argv = help_argv;
326: argc = 1;
327: }
1.117 schwarze 328: } else if (argc > 1 &&
1.128 schwarze 329: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.113 schwarze 330: ((isdigit(uc[0]) && (uc[1] == '\0' ||
331: (isalpha(uc[1]) && uc[2] == '\0'))) ||
332: (uc[0] == 'n' && uc[1] == '\0'))) {
1.128 schwarze 333: search.sec = (char *)uc;
1.110 schwarze 334: argv++;
335: argc--;
336: }
1.122 schwarze 337: if (search.arch == NULL)
338: search.arch = getenv("MACHINE");
339: if (search.arch == NULL)
340: search.arch = MACHINE;
1.95 schwarze 341: }
342:
1.219 ! schwarze 343: /*
! 344: * Use the first argument for -O tag in addition to
! 345: * using it as a search term for man(1) or apropos(1).
! 346: */
! 347:
! 348: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
! 349: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
! 350: strchr(*argv, '=') : NULL;
! 351: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
! 352: }
! 353:
1.95 schwarze 354: /* man(1), whatis(1), apropos(1) */
355:
356: if (search.argmode != ARG_FILE) {
1.107 schwarze 357: if (search.argmode == ARG_NAME &&
358: outmode == OUTMODE_ONE)
359: search.firstmatch = 1;
1.95 schwarze 360:
361: /* Access the mandoc database. */
362:
1.134 schwarze 363: manconf_parse(&conf, conf_file, defpaths, auxpaths);
364: if ( ! mansearch(&search, &conf.manpath,
365: argc, argv, &res, &sz))
1.95 schwarze 366: usage(search.argmode);
1.119 schwarze 367:
1.208 schwarze 368: if (sz == 0 && search.argmode == ARG_NAME)
369: fs_search(&search, &conf.manpath,
370: argc, argv, &res, &sz);
371:
372: if (search.argmode == ARG_NAME) {
373: for (c = 0; c < argc; c++) {
374: if (strchr(argv[c], '/') == NULL)
375: continue;
376: if (access(argv[c], R_OK) == -1) {
377: warn("%s", argv[c]);
378: continue;
379: }
380: res = mandoc_reallocarray(res,
381: sz + 1, sizeof(*res));
382: res[sz].file = mandoc_strdup(argv[c]);
383: res[sz].names = NULL;
384: res[sz].output = NULL;
385: res[sz].ipath = SIZE_MAX;
386: res[sz].sec = 10;
387: res[sz].form = FORM_SRC;
388: sz++;
389: }
1.142 schwarze 390: }
1.95 schwarze 391:
392: if (sz == 0) {
1.208 schwarze 393: if (search.argmode != ARG_NAME)
394: warnx("nothing appropriate");
1.215 schwarze 395: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.95 schwarze 396: goto out;
397: }
398:
399: /*
400: * For standard man(1) and -a output mode,
401: * prepare for copying filename pointers
402: * into the program parameter array.
403: */
404:
405: if (outmode == OUTMODE_ONE) {
406: argc = 1;
1.171 schwarze 407: best_prio = 20;
1.95 schwarze 408: } else if (outmode == OUTMODE_ALL)
409: argc = (int)sz;
410:
411: /* Iterate all matching manuals. */
412:
1.119 schwarze 413: resp = res;
1.95 schwarze 414: for (i = 0; i < sz; i++) {
415: if (outmode == OUTMODE_FLN)
416: puts(res[i].file);
417: else if (outmode == OUTMODE_LST)
418: printf("%s - %s\n", res[i].names,
419: res[i].output == NULL ? "" :
420: res[i].output);
421: else if (outmode == OUTMODE_ONE) {
422: /* Search for the best section. */
1.171 schwarze 423: sec = res[i].file;
424: sec += strcspn(sec, "123456789");
425: if (sec[0] == '\0')
1.95 schwarze 426: continue;
1.171 schwarze 427: prio = sec_prios[sec[0] - '1'];
428: if (sec[1] != '/')
429: prio += 10;
1.95 schwarze 430: if (prio >= best_prio)
431: continue;
432: best_prio = prio;
433: resp = res + i;
434: }
1.1 kristaps 435: }
436:
1.95 schwarze 437: /*
438: * For man(1), -a and -i output mode, fall through
439: * to the main mandoc(1) code iterating files
440: * and running the parsers on each of them.
441: */
442:
443: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
444: goto out;
445: }
446:
447: /* mandoc(1) */
1.157 schwarze 448:
1.167 schwarze 449: if (use_pager) {
450: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
451: err((int)MANDOCLEVEL_SYSERR, "pledge");
452: } else {
453: if (pledge("stdio rpath", NULL) == -1)
454: err((int)MANDOCLEVEL_SYSERR, "pledge");
455: }
1.95 schwarze 456:
1.189 schwarze 457: if (search.argmode == ARG_FILE)
458: moptions(&options, auxpaths);
1.146 schwarze 459:
1.155 schwarze 460: mchars_alloc();
1.215 schwarze 461: curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
1.76 schwarze 462:
1.124 schwarze 463: if (argc < 1) {
1.219 ! schwarze 464: if (use_pager) {
1.149 schwarze 465: tag_files = tag_init();
1.219 ! schwarze 466: tag_files->tagname = conf.output.tag;
! 467: }
1.215 schwarze 468: thisarg = "<stdin>";
469: mandoc_msg_setinfilename(thisarg);
470: parse(&curp, STDIN_FILENO, thisarg);
471: mandoc_msg_setinfilename(NULL);
1.118 schwarze 472: }
1.27 schwarze 473:
1.208 schwarze 474: /*
475: * Remember the original working directory, if possible.
476: * This will be needed if some names on the command line
477: * are page names and some are relative file names.
478: * Do not error out if the current directory is not
479: * readable: Maybe it won't be needed after all.
480: */
481: startdir = open(".", O_RDONLY | O_DIRECTORY);
482:
1.124 schwarze 483: while (argc > 0) {
1.208 schwarze 484:
485: /*
486: * Changing directories is not needed in ARG_FILE mode.
487: * Do it on a best-effort basis. Even in case of
488: * failure, some functionality may still work.
489: */
490: if (resp != NULL) {
491: if (resp->ipath != SIZE_MAX)
492: (void)chdir(conf.manpath.paths[resp->ipath]);
493: else if (startdir != -1)
494: (void)fchdir(startdir);
1.215 schwarze 495: thisarg = resp->file;
496: } else
497: thisarg = *argv;
1.208 schwarze 498:
1.215 schwarze 499: fd = mparse_open(curp.mp, thisarg);
1.118 schwarze 500: if (fd != -1) {
1.149 schwarze 501: if (use_pager) {
1.212 schwarze 502: use_pager = 0;
1.149 schwarze 503: tag_files = tag_init();
1.219 ! schwarze 504: tag_files->tagname = conf.output.tag;
1.149 schwarze 505: }
1.118 schwarze 506:
1.217 schwarze 507: mandoc_msg_setinfilename(thisarg);
1.215 schwarze 508: if (resp == NULL || resp->form == FORM_SRC)
509: parse(&curp, fd, thisarg);
1.208 schwarze 510: else
1.135 schwarze 511: passthrough(resp->file, fd,
512: conf.output.synopsisonly);
1.217 schwarze 513: mandoc_msg_setinfilename(NULL);
1.205 schwarze 514:
515: if (ferror(stdout)) {
516: if (tag_files != NULL) {
517: warn("%s", tag_files->ofn);
518: tag_unlink();
519: tag_files = NULL;
520: } else
521: warn("stdout");
1.215 schwarze 522: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.205 schwarze 523: break;
524: }
1.118 schwarze 525:
1.179 schwarze 526: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
527: if (curp.outdata == NULL)
528: outdata_alloc(&curp);
1.173 schwarze 529: terminal_sepline(curp.outdata);
1.179 schwarze 530: }
1.217 schwarze 531: } else
532: mandoc_msg(MANDOCERR_FILE, 0, 0,
533: "%s", strerror(errno));
1.100 schwarze 534:
1.215 schwarze 535: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.27 schwarze 536: break;
1.116 schwarze 537:
1.118 schwarze 538: if (resp != NULL)
539: resp++;
540: else
541: argv++;
542: if (--argc)
543: mparse_reset(curp.mp);
1.1 kristaps 544: }
1.208 schwarze 545: if (startdir != -1) {
546: (void)fchdir(startdir);
547: close(startdir);
548: }
1.1 kristaps 549:
1.160 schwarze 550: if (curp.outdata != NULL) {
551: switch (curp.outtype) {
552: case OUTT_HTML:
553: html_free(curp.outdata);
554: break;
555: case OUTT_UTF8:
556: case OUTT_LOCALE:
557: case OUTT_ASCII:
558: ascii_free(curp.outdata);
559: break;
560: case OUTT_PDF:
561: case OUTT_PS:
562: pspdf_free(curp.outdata);
563: break;
564: default:
565: break;
566: }
1.158 schwarze 567: }
1.197 schwarze 568: mandoc_xr_free();
1.102 schwarze 569: mparse_free(curp.mp);
1.155 schwarze 570: mchars_free();
1.95 schwarze 571:
572: out:
573: if (search.argmode != ARG_FILE) {
1.134 schwarze 574: manconf_free(&conf);
1.95 schwarze 575: mansearch_free(res, sz);
576: }
577:
1.196 schwarze 578: free(curp.os_s);
1.1 kristaps 579:
1.129 schwarze 580: /*
1.149 schwarze 581: * When using a pager, finish writing both temporary files,
582: * fork it, wait for the user to close it, and clean up.
1.129 schwarze 583: */
584:
1.149 schwarze 585: if (tag_files != NULL) {
1.130 schwarze 586: fclose(stdout);
1.144 schwarze 587: tag_write();
1.166 schwarze 588: man_pgid = getpgid(0);
589: tag_files->tcpgid = man_pgid == getpid() ?
590: getpgid(getppid()) : man_pgid;
591: pager_pid = 0;
592: signum = SIGSTOP;
1.165 schwarze 593: for (;;) {
1.166 schwarze 594:
595: /* Stop here until moved to the foreground. */
596:
1.182 schwarze 597: tc_pgid = tcgetpgrp(tag_files->ofd);
1.166 schwarze 598: if (tc_pgid != man_pgid) {
599: if (tc_pgid == pager_pid) {
1.182 schwarze 600: (void)tcsetpgrp(tag_files->ofd,
1.166 schwarze 601: man_pgid);
602: if (signum == SIGTTIN)
603: continue;
604: } else
605: tag_files->tcpgid = tc_pgid;
606: kill(0, signum);
607: continue;
608: }
609:
610: /* Once in the foreground, activate the pager. */
611:
612: if (pager_pid) {
1.182 schwarze 613: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.166 schwarze 614: kill(pager_pid, SIGCONT);
615: } else
616: pager_pid = spawn_pager(tag_files);
617:
618: /* Wait for the pager to stop or exit. */
619:
620: while ((pid = waitpid(pager_pid, &status,
621: WUNTRACED)) == -1 && errno == EINTR)
622: continue;
623:
624: if (pid == -1) {
1.165 schwarze 625: warn("wait");
1.215 schwarze 626: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.165 schwarze 627: break;
628: }
629: if (!WIFSTOPPED(status))
630: break;
631:
1.166 schwarze 632: signum = WSTOPSIG(status);
1.165 schwarze 633: }
1.144 schwarze 634: tag_unlink();
1.130 schwarze 635: }
1.215 schwarze 636: return (int)mandoc_msg_getrc();
1.1 kristaps 637: }
638:
1.20 schwarze 639: static void
1.95 schwarze 640: usage(enum argmode argmode)
1.1 kristaps 641: {
642:
1.95 schwarze 643: switch (argmode) {
644: case ARG_FILE:
1.190 schwarze 645: fputs("usage: mandoc [-ac] [-I os=name] "
646: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.133 schwarze 647: "\t [-T output] [-W level] [file ...]\n", stderr);
1.95 schwarze 648: break;
649: case ARG_NAME:
1.190 schwarze 650: fputs("usage: man [-acfhklw] [-C file] [-M path] "
651: "[-m path] [-S subsection]\n"
652: "\t [[-s] section] name ...\n", stderr);
1.95 schwarze 653: break;
654: case ARG_WORD:
1.190 schwarze 655: fputs("usage: whatis [-afk] [-C file] "
1.96 schwarze 656: "[-M path] [-m path] [-O outkey] [-S arch]\n"
657: "\t [-s section] name ...\n", stderr);
1.95 schwarze 658: break;
659: case ARG_EXPR:
1.190 schwarze 660: fputs("usage: apropos [-afk] [-C file] "
1.96 schwarze 661: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.95 schwarze 662: "\t [-s section] expression ...\n", stderr);
663: break;
664: }
1.47 schwarze 665: exit((int)MANDOCLEVEL_BADARG);
1.119 schwarze 666: }
667:
668: static int
669: fs_lookup(const struct manpaths *paths, size_t ipath,
670: const char *sec, const char *arch, const char *name,
671: struct manpage **res, size_t *ressz)
672: {
1.127 schwarze 673: glob_t globinfo;
1.119 schwarze 674: struct manpage *page;
675: char *file;
1.177 schwarze 676: int globres;
677: enum form form;
1.119 schwarze 678:
1.127 schwarze 679: form = FORM_SRC;
1.119 schwarze 680: mandoc_asprintf(&file, "%s/man%s/%s.%s",
681: paths->paths[ipath], sec, name, sec);
1.127 schwarze 682: if (access(file, R_OK) != -1)
1.119 schwarze 683: goto found;
684: free(file);
685:
686: mandoc_asprintf(&file, "%s/cat%s/%s.0",
687: paths->paths[ipath], sec, name);
688: if (access(file, R_OK) != -1) {
689: form = FORM_CAT;
690: goto found;
691: }
692: free(file);
693:
694: if (arch != NULL) {
695: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
696: paths->paths[ipath], sec, arch, name, sec);
1.127 schwarze 697: if (access(file, R_OK) != -1)
1.119 schwarze 698: goto found;
699: free(file);
700: }
1.127 schwarze 701:
1.145 schwarze 702: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.127 schwarze 703: paths->paths[ipath], sec, name);
704: globres = glob(file, 0, NULL, &globinfo);
705: if (globres != 0 && globres != GLOB_NOMATCH)
1.152 schwarze 706: warn("%s: glob", file);
1.127 schwarze 707: free(file);
708: if (globres == 0)
709: file = mandoc_strdup(*globinfo.gl_pathv);
710: globfree(&globinfo);
1.199 schwarze 711: if (globres == 0)
712: goto found;
713: if (res != NULL || ipath + 1 != paths->sz)
1.150 schwarze 714: return 0;
1.119 schwarze 715:
1.199 schwarze 716: mandoc_asprintf(&file, "%s.%s", name, sec);
717: globres = access(file, R_OK);
718: free(file);
719: return globres != -1;
720:
1.119 schwarze 721: found:
1.152 schwarze 722: warnx("outdated mandoc.db lacks %s(%s) entry, run makewhatis %s",
723: name, sec, paths->paths[ipath]);
1.199 schwarze 724: if (res == NULL) {
725: free(file);
1.198 schwarze 726: return 1;
1.199 schwarze 727: }
1.119 schwarze 728: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
729: page = *res + (*ressz - 1);
730: page->file = file;
731: page->names = NULL;
732: page->output = NULL;
733: page->ipath = ipath;
734: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
735: page->form = form;
1.150 schwarze 736: return 1;
1.119 schwarze 737: }
738:
1.198 schwarze 739: static int
1.119 schwarze 740: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
741: int argc, char **argv, struct manpage **res, size_t *ressz)
742: {
743: const char *const sections[] =
1.171 schwarze 744: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.119 schwarze 745: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
746:
747: size_t ipath, isec, lastsz;
748:
749: assert(cfg->argmode == ARG_NAME);
750:
1.198 schwarze 751: if (res != NULL)
752: *res = NULL;
1.119 schwarze 753: *ressz = lastsz = 0;
754: while (argc) {
755: for (ipath = 0; ipath < paths->sz; ipath++) {
756: if (cfg->sec != NULL) {
757: if (fs_lookup(paths, ipath, cfg->sec,
758: cfg->arch, *argv, res, ressz) &&
759: cfg->firstmatch)
1.198 schwarze 760: return 1;
1.119 schwarze 761: } else for (isec = 0; isec < nsec; isec++)
762: if (fs_lookup(paths, ipath, sections[isec],
763: cfg->arch, *argv, res, ressz) &&
764: cfg->firstmatch)
1.198 schwarze 765: return 1;
1.119 schwarze 766: }
1.208 schwarze 767: if (res != NULL && *ressz == lastsz &&
1.210 schwarze 768: strchr(*argv, '/') == NULL) {
769: if (cfg->sec == NULL)
770: warnx("No entry for %s in the manual.",
771: *argv);
772: else
773: warnx("No entry for %s in section %s "
774: "of the manual.", *argv, cfg->sec);
775: }
1.119 schwarze 776: lastsz = *ressz;
777: argv++;
778: argc--;
779: }
1.198 schwarze 780: return 0;
1.1 kristaps 781: }
782:
1.27 schwarze 783: static void
1.132 schwarze 784: parse(struct curparse *curp, int fd, const char *file)
1.52 schwarze 785: {
1.218 schwarze 786: struct roff_meta *meta;
1.52 schwarze 787:
1.76 schwarze 788: /* Begin by parsing the file itself. */
1.52 schwarze 789:
1.76 schwarze 790: assert(file);
1.170 florian 791: assert(fd >= 0);
1.52 schwarze 792:
1.215 schwarze 793: mparse_readfd(curp->mp, fd, file);
1.168 schwarze 794: if (fd != STDIN_FILENO)
795: close(fd);
1.1 kristaps 796:
1.51 schwarze 797: /*
1.76 schwarze 798: * With -Wstop and warnings or errors of at least the requested
799: * level, do not produce output.
1.51 schwarze 800: */
801:
1.215 schwarze 802: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.132 schwarze 803: return;
1.51 schwarze 804:
1.179 schwarze 805: if (curp->outdata == NULL)
806: outdata_alloc(curp);
1.51 schwarze 807:
1.218 schwarze 808: mandoc_xr_reset();
809: meta = mparse_result(curp->mp);
1.158 schwarze 810:
811: /* Execute the out device, if it exists. */
812:
1.218 schwarze 813: if (meta->macroset == MACROSET_MDOC) {
1.51 schwarze 814: switch (curp->outtype) {
1.90 schwarze 815: case OUTT_HTML:
1.218 schwarze 816: html_mdoc(curp->outdata, meta);
1.51 schwarze 817: break;
1.90 schwarze 818: case OUTT_TREE:
1.218 schwarze 819: tree_mdoc(curp->outdata, meta);
1.51 schwarze 820: break;
1.90 schwarze 821: case OUTT_MAN:
1.218 schwarze 822: man_mdoc(curp->outdata, meta);
1.78 schwarze 823: break;
1.90 schwarze 824: case OUTT_PDF:
825: case OUTT_ASCII:
826: case OUTT_UTF8:
827: case OUTT_LOCALE:
828: case OUTT_PS:
1.218 schwarze 829: terminal_mdoc(curp->outdata, meta);
1.158 schwarze 830: break;
1.188 schwarze 831: case OUTT_MARKDOWN:
1.218 schwarze 832: markdown_mdoc(curp->outdata, meta);
1.188 schwarze 833: break;
1.158 schwarze 834: default:
835: break;
836: }
837: }
1.218 schwarze 838: if (meta->macroset == MACROSET_MAN) {
1.158 schwarze 839: switch (curp->outtype) {
840: case OUTT_HTML:
1.218 schwarze 841: html_man(curp->outdata, meta);
1.158 schwarze 842: break;
843: case OUTT_TREE:
1.218 schwarze 844: tree_man(curp->outdata, meta);
1.158 schwarze 845: break;
846: case OUTT_MAN:
1.211 schwarze 847: mparse_copy(curp->mp);
1.158 schwarze 848: break;
849: case OUTT_PDF:
850: case OUTT_ASCII:
851: case OUTT_UTF8:
852: case OUTT_LOCALE:
853: case OUTT_PS:
1.218 schwarze 854: terminal_man(curp->outdata, meta);
1.51 schwarze 855: break;
856: default:
857: break;
858: }
1.179 schwarze 859: }
1.215 schwarze 860: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
861: check_xr();
1.197 schwarze 862: }
863:
864: static void
1.215 schwarze 865: check_xr(void)
1.197 schwarze 866: {
867: static struct manpaths paths;
868: struct mansearch search;
869: struct mandoc_xr *xr;
870: size_t sz;
871:
872: if (paths.sz == 0)
873: manpath_base(&paths);
874:
875: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.200 schwarze 876: if (xr->line == -1)
877: continue;
1.197 schwarze 878: search.arch = NULL;
879: search.sec = xr->sec;
880: search.outkey = NULL;
881: search.argmode = ARG_NAME;
882: search.firstmatch = 1;
883: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.198 schwarze 884: continue;
885: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.197 schwarze 886: continue;
1.201 schwarze 887: if (xr->count == 1)
1.216 schwarze 888: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
889: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.201 schwarze 890: else
1.216 schwarze 891: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
892: xr->pos + 1, "Xr %s %s (%d times)",
1.201 schwarze 893: xr->name, xr->sec, xr->count);
1.197 schwarze 894: }
1.179 schwarze 895: }
896:
897: static void
898: outdata_alloc(struct curparse *curp)
899: {
900: switch (curp->outtype) {
901: case OUTT_HTML:
902: curp->outdata = html_alloc(curp->outopts);
903: break;
904: case OUTT_UTF8:
905: curp->outdata = utf8_alloc(curp->outopts);
906: break;
907: case OUTT_LOCALE:
908: curp->outdata = locale_alloc(curp->outopts);
909: break;
910: case OUTT_ASCII:
911: curp->outdata = ascii_alloc(curp->outopts);
912: break;
913: case OUTT_PDF:
914: curp->outdata = pdf_alloc(curp->outopts);
915: break;
916: case OUTT_PS:
917: curp->outdata = ps_alloc(curp->outopts);
918: break;
919: default:
920: break;
1.51 schwarze 921: }
1.1 kristaps 922: }
923:
1.132 schwarze 924: static void
1.105 schwarze 925: passthrough(const char *file, int fd, int synopsis_only)
1.95 schwarze 926: {
1.105 schwarze 927: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
928: const char synr[] = "SYNOPSIS";
929:
930: FILE *stream;
1.95 schwarze 931: const char *syscall;
1.164 schwarze 932: char *line, *cp;
933: size_t linesz;
1.180 schwarze 934: ssize_t len, written;
1.105 schwarze 935: int print;
1.116 schwarze 936:
1.164 schwarze 937: line = NULL;
938: linesz = 0;
1.105 schwarze 939:
1.180 schwarze 940: if (fflush(stdout) == EOF) {
941: syscall = "fflush";
942: goto fail;
943: }
944:
1.105 schwarze 945: if ((stream = fdopen(fd, "r")) == NULL) {
946: close(fd);
947: syscall = "fdopen";
948: goto fail;
949: }
1.95 schwarze 950:
1.105 schwarze 951: print = 0;
1.180 schwarze 952: while ((len = getline(&line, &linesz, stream)) != -1) {
1.164 schwarze 953: cp = line;
1.105 schwarze 954: if (synopsis_only) {
955: if (print) {
1.164 schwarze 956: if ( ! isspace((unsigned char)*cp))
1.105 schwarze 957: goto done;
1.180 schwarze 958: while (isspace((unsigned char)*cp)) {
1.164 schwarze 959: cp++;
1.180 schwarze 960: len--;
961: }
1.105 schwarze 962: } else {
1.164 schwarze 963: if (strcmp(cp, synb) == 0 ||
964: strcmp(cp, synr) == 0)
1.105 schwarze 965: print = 1;
966: continue;
967: }
968: }
1.180 schwarze 969: for (; len > 0; len -= written) {
970: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
971: continue;
1.164 schwarze 972: fclose(stream);
1.180 schwarze 973: syscall = "write";
1.164 schwarze 974: goto fail;
975: }
1.105 schwarze 976: }
1.95 schwarze 977:
1.105 schwarze 978: if (ferror(stream)) {
979: fclose(stream);
1.164 schwarze 980: syscall = "getline";
1.105 schwarze 981: goto fail;
982: }
1.101 schwarze 983:
1.105 schwarze 984: done:
1.164 schwarze 985: free(line);
1.105 schwarze 986: fclose(stream);
1.132 schwarze 987: return;
1.95 schwarze 988:
989: fail:
1.164 schwarze 990: free(line);
1.152 schwarze 991: warn("%s: SYSERR: %s", file, syscall);
1.215 schwarze 992: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.103 schwarze 993: }
994:
995: static int
996: koptions(int *options, char *arg)
997: {
998:
999: if ( ! strcmp(arg, "utf-8")) {
1000: *options |= MPARSE_UTF8;
1001: *options &= ~MPARSE_LATIN1;
1002: } else if ( ! strcmp(arg, "iso-8859-1")) {
1003: *options |= MPARSE_LATIN1;
1004: *options &= ~MPARSE_UTF8;
1005: } else if ( ! strcmp(arg, "us-ascii")) {
1006: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
1007: } else {
1.152 schwarze 1008: warnx("-K %s: Bad argument", arg);
1.150 schwarze 1009: return 0;
1.103 schwarze 1010: }
1.150 schwarze 1011: return 1;
1.95 schwarze 1012: }
1013:
1.189 schwarze 1014: static void
1.87 schwarze 1015: moptions(int *options, char *arg)
1.1 kristaps 1016: {
1017:
1.95 schwarze 1018: if (arg == NULL)
1.189 schwarze 1019: return;
1020: if (strcmp(arg, "doc") == 0)
1.87 schwarze 1021: *options |= MPARSE_MDOC;
1.189 schwarze 1022: else if (strcmp(arg, "an") == 0)
1.87 schwarze 1023: *options |= MPARSE_MAN;
1.1 kristaps 1024: }
1025:
1026: static int
1.22 schwarze 1027: toptions(struct curparse *curp, char *arg)
1.1 kristaps 1028: {
1029:
1030: if (0 == strcmp(arg, "ascii"))
1.22 schwarze 1031: curp->outtype = OUTT_ASCII;
1032: else if (0 == strcmp(arg, "lint")) {
1033: curp->outtype = OUTT_LINT;
1.215 schwarze 1034: mandoc_msg_setoutfile(stdout);
1035: mandoc_msg_setmin(MANDOCERR_BASE);
1.76 schwarze 1036: } else if (0 == strcmp(arg, "tree"))
1.22 schwarze 1037: curp->outtype = OUTT_TREE;
1.78 schwarze 1038: else if (0 == strcmp(arg, "man"))
1039: curp->outtype = OUTT_MAN;
1.17 schwarze 1040: else if (0 == strcmp(arg, "html"))
1.22 schwarze 1041: curp->outtype = OUTT_HTML;
1.188 schwarze 1042: else if (0 == strcmp(arg, "markdown"))
1043: curp->outtype = OUTT_MARKDOWN;
1.77 schwarze 1044: else if (0 == strcmp(arg, "utf8"))
1045: curp->outtype = OUTT_UTF8;
1046: else if (0 == strcmp(arg, "locale"))
1047: curp->outtype = OUTT_LOCALE;
1.36 schwarze 1048: else if (0 == strcmp(arg, "ps"))
1049: curp->outtype = OUTT_PS;
1.43 schwarze 1050: else if (0 == strcmp(arg, "pdf"))
1051: curp->outtype = OUTT_PDF;
1.1 kristaps 1052: else {
1.152 schwarze 1053: warnx("-T %s: Bad argument", arg);
1.150 schwarze 1054: return 0;
1.1 kristaps 1055: }
1056:
1.150 schwarze 1057: return 1;
1.1 kristaps 1058: }
1059:
1060: static int
1.45 schwarze 1061: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1062: {
1.10 schwarze 1063: char *v, *o;
1.196 schwarze 1064: const char *toks[11];
1.1 kristaps 1065:
1.45 schwarze 1066: toks[0] = "stop";
1067: toks[1] = "all";
1.196 schwarze 1068: toks[2] = "base";
1069: toks[3] = "style";
1070: toks[4] = "warning";
1071: toks[5] = "error";
1072: toks[6] = "unsupp";
1073: toks[7] = "fatal";
1074: toks[8] = "openbsd";
1075: toks[9] = "netbsd";
1076: toks[10] = NULL;
1.1 kristaps 1077:
1.10 schwarze 1078: while (*arg) {
1079: o = arg;
1.176 schwarze 1080: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.90 schwarze 1081: case 0:
1.45 schwarze 1082: curp->wstop = 1;
1.1 kristaps 1083: break;
1.90 schwarze 1084: case 1:
1085: case 2:
1.215 schwarze 1086: mandoc_msg_setmin(MANDOCERR_BASE);
1.193 schwarze 1087: break;
1088: case 3:
1.215 schwarze 1089: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1090: break;
1.193 schwarze 1091: case 4:
1.215 schwarze 1092: mandoc_msg_setmin(MANDOCERR_WARNING);
1.1 kristaps 1093: break;
1.193 schwarze 1094: case 5:
1.215 schwarze 1095: mandoc_msg_setmin(MANDOCERR_ERROR);
1.123 schwarze 1096: break;
1.193 schwarze 1097: case 6:
1.215 schwarze 1098: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.196 schwarze 1099: break;
1100: case 7:
1.215 schwarze 1101: mandoc_msg_setmin(MANDOCERR_MAX);
1.196 schwarze 1102: break;
1103: case 8:
1.215 schwarze 1104: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1105: curp->os_e = MANDOC_OS_OPENBSD;
1106: break;
1107: case 9:
1.215 schwarze 1108: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1109: curp->os_e = MANDOC_OS_NETBSD;
1.19 schwarze 1110: break;
1.1 kristaps 1111: default:
1.152 schwarze 1112: warnx("-W %s: Bad argument", o);
1.150 schwarze 1113: return 0;
1.1 kristaps 1114: }
1.10 schwarze 1115: }
1.150 schwarze 1116: return 1;
1.95 schwarze 1117: }
1118:
1.130 schwarze 1119: static pid_t
1.149 schwarze 1120: spawn_pager(struct tag_files *tag_files)
1.95 schwarze 1121: {
1.172 schwarze 1122: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.95 schwarze 1123: #define MAX_PAGER_ARGS 16
1124: char *argv[MAX_PAGER_ARGS];
1125: const char *pager;
1126: char *cp;
1.144 schwarze 1127: size_t cmdlen;
1.212 schwarze 1128: int argc, use_ofn;
1.130 schwarze 1129: pid_t pager_pid;
1.95 schwarze 1130:
1.144 schwarze 1131: pager = getenv("MANPAGER");
1132: if (pager == NULL || *pager == '\0')
1133: pager = getenv("PAGER");
1134: if (pager == NULL || *pager == '\0')
1135: pager = "more -s";
1136: cp = mandoc_strdup(pager);
1137:
1138: /*
1139: * Parse the pager command into words.
1140: * Intentionally do not do anything fancy here.
1141: */
1142:
1143: argc = 0;
1.212 schwarze 1144: while (argc + 5 < MAX_PAGER_ARGS) {
1.144 schwarze 1145: argv[argc++] = cp;
1146: cp = strchr(cp, ' ');
1147: if (cp == NULL)
1148: break;
1149: *cp++ = '\0';
1150: while (*cp == ' ')
1151: cp++;
1152: if (*cp == '\0')
1153: break;
1154: }
1155:
1.149 schwarze 1156: /* For more(1) and less(1), use the tag file. */
1.144 schwarze 1157:
1.212 schwarze 1158: use_ofn = 1;
1.149 schwarze 1159: if ((cmdlen = strlen(argv[0])) >= 4) {
1.144 schwarze 1160: cp = argv[0] + cmdlen - 4;
1.149 schwarze 1161: if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) {
1162: argv[argc++] = mandoc_strdup("-T");
1163: argv[argc++] = tag_files->tfn;
1.212 schwarze 1164: if (tag_files->tagname != NULL) {
1165: argv[argc++] = mandoc_strdup("-t");
1166: argv[argc++] = tag_files->tagname;
1167: use_ofn = 0;
1168: }
1.149 schwarze 1169: }
1.144 schwarze 1170: }
1.212 schwarze 1171: if (use_ofn)
1172: argv[argc++] = tag_files->ofn;
1.144 schwarze 1173: argv[argc] = NULL;
1174:
1.130 schwarze 1175: switch (pager_pid = fork()) {
1.95 schwarze 1176: case -1:
1.152 schwarze 1177: err((int)MANDOCLEVEL_SYSERR, "fork");
1.95 schwarze 1178: case 0:
1.129 schwarze 1179: break;
1180: default:
1.165 schwarze 1181: (void)setpgid(pager_pid, 0);
1.182 schwarze 1182: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.165 schwarze 1183: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.163 schwarze 1184: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.166 schwarze 1185: tag_files->pager_pid = pager_pid;
1.150 schwarze 1186: return pager_pid;
1.95 schwarze 1187: }
1188:
1.129 schwarze 1189: /* The child process becomes the pager. */
1.95 schwarze 1190:
1.152 schwarze 1191: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1192: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.149 schwarze 1193: close(tag_files->ofd);
1.206 tb 1194: assert(tag_files->tfd == -1);
1.172 schwarze 1195:
1196: /* Do not start the pager before controlling the terminal. */
1197:
1.182 schwarze 1198: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.172 schwarze 1199: nanosleep(&timeout, NULL);
1200:
1.95 schwarze 1201: execvp(argv[0], argv);
1.152 schwarze 1202: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.30 schwarze 1203: }