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