Annotation of mandoc/main.c, Revision 1.315
1.315 ! schwarze 1: /* $Id: main.c,v 1.314 2018/12/20 21:30:32 schwarze Exp $ */
1.1 kristaps 2: /*
1.183 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.304 schwarze 4: * Copyright (c) 2010-2012, 2014-2018 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>
1.304 schwarze 22: #include <sys/ioctl.h>
1.216 schwarze 23: #include <sys/param.h> /* MACHINE */
1.304 schwarze 24: #include <sys/termios.h>
1.224 schwarze 25: #include <sys/wait.h>
1.58 kristaps 26:
1.1 kristaps 27: #include <assert.h>
1.185 schwarze 28: #include <ctype.h>
1.256 schwarze 29: #if HAVE_ERR
1.247 schwarze 30: #include <err.h>
1.256 schwarze 31: #endif
1.258 schwarze 32: #include <errno.h>
1.186 schwarze 33: #include <fcntl.h>
1.222 schwarze 34: #include <glob.h>
1.269 kristaps 35: #if HAVE_SANDBOX_INIT
36: #include <sandbox.h>
37: #endif
1.226 schwarze 38: #include <signal.h>
1.1 kristaps 39: #include <stdio.h>
1.45 kristaps 40: #include <stdint.h>
1.1 kristaps 41: #include <stdlib.h>
42: #include <string.h>
1.265 schwarze 43: #include <time.h>
1.1 kristaps 44: #include <unistd.h>
45:
1.231 schwarze 46: #include "mandoc_aux.h"
1.71 kristaps 47: #include "mandoc.h"
1.294 schwarze 48: #include "mandoc_xr.h"
1.231 schwarze 49: #include "roff.h"
1.1 kristaps 50: #include "mdoc.h"
1.10 kristaps 51: #include "man.h"
1.311 schwarze 52: #include "mandoc_parse.h"
1.239 schwarze 53: #include "tag.h"
1.231 schwarze 54: #include "main.h"
1.229 schwarze 55: #include "manconf.h"
1.180 schwarze 56: #include "mansearch.h"
1.16 kristaps 57:
1.181 schwarze 58: enum outmode {
59: OUTMODE_DEF = 0,
60: OUTMODE_FLN,
61: OUTMODE_LST,
62: OUTMODE_ALL,
63: OUTMODE_ONE
64: };
65:
1.19 kristaps 66: enum outt {
1.154 kristaps 67: OUTT_ASCII = 0, /* -Tascii */
1.162 kristaps 68: OUTT_LOCALE, /* -Tlocale */
1.163 kristaps 69: OUTT_UTF8, /* -Tutf8 */
1.154 kristaps 70: OUTT_TREE, /* -Ttree */
1.164 schwarze 71: OUTT_MAN, /* -Tman */
1.154 kristaps 72: OUTT_HTML, /* -Thtml */
1.285 schwarze 73: OUTT_MARKDOWN, /* -Tmarkdown */
1.154 kristaps 74: OUTT_LINT, /* -Tlint */
75: OUTT_PS, /* -Tps */
76: OUTT_PDF /* -Tpdf */
1.19 kristaps 77: };
78:
1.5 kristaps 79: struct curparse {
1.154 kristaps 80: struct mparse *mp;
1.293 schwarze 81: struct manoutput *outopts; /* output options */
82: void *outdata; /* data for output */
83: char *os_s; /* operating system for display */
1.148 kristaps 84: int wstop; /* stop after a file with a warning */
1.293 schwarze 85: enum mandoc_os os_e; /* check base system conventions */
1.173 schwarze 86: enum outt outtype; /* which output to use */
1.79 kristaps 87: };
1.270 schwarze 88:
89:
90: int mandocdb(int, char *[]);
1.79 kristaps 91:
1.312 schwarze 92: static void check_xr(void);
1.213 schwarze 93: static int fs_lookup(const struct manpaths *,
94: size_t ipath, const char *,
95: const char *, const char *,
96: struct manpage **, size_t *);
1.295 schwarze 97: static int fs_search(const struct mansearch *,
1.213 schwarze 98: const struct manpaths *, int, char**,
99: struct manpage **, size_t *);
1.194 schwarze 100: static int koptions(int *, char *);
1.286 schwarze 101: static void moptions(int *, 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};
1.1 kristaps 113:
1.173 schwarze 114:
1.1 kristaps 115: int
116: main(int argc, char *argv[])
117: {
1.229 schwarze 118: struct manconf conf;
1.282 schwarze 119: struct mansearch search;
1.5 kristaps 120: struct curparse curp;
1.304 schwarze 121: struct winsize ws;
1.244 schwarze 122: struct tag_files *tag_files;
1.282 schwarze 123: struct manpage *res, *resp;
124: const char *progname, *sec, *thisarg;
125: char *conf_file, *defpaths, *auxpaths;
1.293 schwarze 126: char *oarg;
1.207 schwarze 127: unsigned char *uc;
1.264 schwarze 128: size_t i, sz;
1.230 schwarze 129: int prio, best_prio;
1.181 schwarze 130: enum outmode outmode;
1.305 schwarze 131: int fd, startdir;
1.180 schwarze 132: int show_usage;
1.170 schwarze 133: int options;
1.244 schwarze 134: int use_pager;
1.259 schwarze 135: int status, signum;
1.180 schwarze 136: int c;
1.259 schwarze 137: pid_t pager_pid, tc_pgid, man_pgid, pid;
1.1 kristaps 138:
1.254 schwarze 139: #if HAVE_PROGNAME
140: progname = getprogname();
141: #else
1.219 schwarze 142: if (argc < 1)
1.254 schwarze 143: progname = mandoc_strdup("mandoc");
144: else if ((progname = strrchr(argv[0], '/')) == NULL)
145: progname = argv[0];
1.54 kristaps 146: else
1.254 schwarze 147: ++progname;
148: setprogname(progname);
1.247 schwarze 149: #endif
1.203 schwarze 150:
1.254 schwarze 151: if (strncmp(progname, "mandocdb", 8) == 0 ||
152: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 153: return mandocdb(argc, argv);
1.179 schwarze 154:
1.255 schwarze 155: #if HAVE_PLEDGE
1.284 schwarze 156: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
1.255 schwarze 157: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.269 kristaps 158: #endif
159:
160: #if HAVE_SANDBOX_INIT
161: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
162: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 163: #endif
164:
1.180 schwarze 165: /* Search options. */
166:
1.229 schwarze 167: memset(&conf, 0, sizeof(conf));
1.205 schwarze 168: conf_file = defpaths = NULL;
169: auxpaths = NULL;
1.180 schwarze 170:
171: memset(&search, 0, sizeof(struct mansearch));
172: search.outkey = "Nd";
1.282 schwarze 173: oarg = NULL;
1.180 schwarze 174:
1.254 schwarze 175: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 176: search.argmode = ARG_NAME;
1.254 schwarze 177: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 178: search.argmode = ARG_EXPR;
1.254 schwarze 179: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 180: search.argmode = ARG_WORD;
1.254 schwarze 181: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 182: search.argmode = ARG_NAME;
1.180 schwarze 183: else
184: search.argmode = ARG_FILE;
185:
186: /* Parser and formatter options. */
1.54 kristaps 187:
1.51 kristaps 188: memset(&curp, 0, sizeof(struct curparse));
1.201 schwarze 189: curp.outtype = OUTT_LOCALE;
1.230 schwarze 190: curp.outopts = &conf.output;
1.194 schwarze 191: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.19 kristaps 192:
1.244 schwarze 193: use_pager = 1;
194: tag_files = NULL;
1.180 schwarze 195: show_usage = 0;
1.181 schwarze 196: outmode = OUTMODE_DEF;
1.183 schwarze 197:
1.289 schwarze 198: while ((c = getopt(argc, argv,
199: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
200: if (c == 'i' && search.argmode == ARG_EXPR) {
201: optind--;
202: break;
203: }
1.1 kristaps 204: switch (c) {
1.181 schwarze 205: case 'a':
206: outmode = OUTMODE_ALL;
207: break;
1.180 schwarze 208: case 'C':
209: conf_file = optarg;
210: break;
1.183 schwarze 211: case 'c':
1.244 schwarze 212: use_pager = 0;
1.183 schwarze 213: break;
1.180 schwarze 214: case 'f':
215: search.argmode = ARG_WORD;
216: break;
1.190 schwarze 217: case 'h':
1.230 schwarze 218: conf.output.synopsisonly = 1;
1.244 schwarze 219: use_pager = 0;
1.190 schwarze 220: outmode = OUTMODE_ALL;
221: break;
1.173 schwarze 222: case 'I':
1.166 schwarze 223: if (strncmp(optarg, "os=", 3)) {
1.247 schwarze 224: warnx("-I %s: Bad argument", optarg);
1.245 schwarze 225: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 226: }
1.293 schwarze 227: if (curp.os_s != NULL) {
1.247 schwarze 228: warnx("-I %s: Duplicate argument", optarg);
1.245 schwarze 229: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 230: }
1.293 schwarze 231: curp.os_s = mandoc_strdup(optarg + 3);
1.181 schwarze 232: break;
1.194 schwarze 233: case 'K':
234: if ( ! koptions(&options, optarg))
1.245 schwarze 235: return (int)MANDOCLEVEL_BADARG;
1.194 schwarze 236: break;
1.180 schwarze 237: case 'k':
238: search.argmode = ARG_EXPR;
239: break;
1.188 schwarze 240: case 'l':
241: search.argmode = ARG_FILE;
242: outmode = OUTMODE_ALL;
243: break;
1.180 schwarze 244: case 'M':
245: defpaths = optarg;
246: break;
1.173 schwarze 247: case 'm':
1.180 schwarze 248: auxpaths = optarg;
1.10 kristaps 249: break;
1.173 schwarze 250: case 'O':
1.282 schwarze 251: oarg = optarg;
1.44 kristaps 252: break;
1.180 schwarze 253: case 'S':
254: search.arch = optarg;
255: break;
256: case 's':
257: search.sec = optarg;
258: break;
1.173 schwarze 259: case 'T':
1.60 kristaps 260: if ( ! toptions(&curp, optarg))
1.245 schwarze 261: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 262: break;
1.173 schwarze 263: case 'W':
1.103 schwarze 264: if ( ! woptions(&curp, optarg))
1.245 schwarze 265: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 266: break;
1.181 schwarze 267: case 'w':
268: outmode = OUTMODE_FLN;
269: break;
1.1 kristaps 270: default:
1.180 schwarze 271: show_usage = 1;
272: break;
1.1 kristaps 273: }
1.180 schwarze 274: }
275:
276: if (show_usage)
277: usage(search.argmode);
278:
1.185 schwarze 279: /* Postprocess options. */
280:
1.181 schwarze 281: if (outmode == OUTMODE_DEF) {
282: switch (search.argmode) {
283: case ARG_FILE:
284: outmode = OUTMODE_ALL;
1.244 schwarze 285: use_pager = 0;
1.181 schwarze 286: break;
287: case ARG_NAME:
288: outmode = OUTMODE_ONE;
289: break;
290: default:
291: outmode = OUTMODE_LST;
292: break;
1.282 schwarze 293: }
294: }
295:
296: if (oarg != NULL) {
297: if (outmode == OUTMODE_LST)
298: search.outkey = oarg;
299: else {
300: while (oarg != NULL) {
301: thisarg = oarg;
302: if (manconf_output(&conf.output,
303: strsep(&oarg, ","), 0) == 0)
304: continue;
305: warnx("-O %s: Bad argument", thisarg);
306: return (int)MANDOCLEVEL_BADARG;
307: }
1.181 schwarze 308: }
309: }
310:
1.315 ! schwarze 311: if (curp.outtype != OUTT_TREE || !curp.outopts->noval)
! 312: options |= MPARSE_VALIDATE;
! 313:
1.246 schwarze 314: if (outmode == OUTMODE_FLN ||
315: outmode == OUTMODE_LST ||
316: !isatty(STDOUT_FILENO))
317: use_pager = 0;
1.304 schwarze 318:
319: if (use_pager &&
320: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 321: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
322: ws.ws_col > 1) {
1.304 schwarze 323: if (conf.output.width == 0 && ws.ws_col < 79)
324: conf.output.width = ws.ws_col - 1;
325: if (conf.output.indent == 0 && ws.ws_col < 66)
326: conf.output.indent = 3;
327: }
1.246 schwarze 328:
1.255 schwarze 329: #if HAVE_PLEDGE
1.260 schwarze 330: if (!use_pager)
1.284 schwarze 331: if (pledge("stdio rpath", NULL) == -1)
1.260 schwarze 332: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.255 schwarze 333: #endif
334:
1.185 schwarze 335: /* Parse arguments. */
336:
1.219 schwarze 337: if (argc > 0) {
338: argc -= optind;
339: argv += optind;
340: }
1.186 schwarze 341: resp = NULL;
1.185 schwarze 342:
1.202 schwarze 343: /*
344: * Quirks for help(1)
345: * and for a man(1) section argument without -s.
346: */
347:
348: if (search.argmode == ARG_NAME) {
1.254 schwarze 349: if (*progname == 'h') {
1.202 schwarze 350: if (argc == 0) {
351: argv = help_argv;
352: argc = 1;
353: }
1.211 schwarze 354: } else if (argc > 1 &&
1.223 kristaps 355: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 356: ((isdigit(uc[0]) && (uc[1] == '\0' ||
357: (isalpha(uc[1]) && uc[2] == '\0'))) ||
358: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 359: search.sec = (char *)uc;
1.202 schwarze 360: argv++;
361: argc--;
362: }
1.216 schwarze 363: if (search.arch == NULL)
364: search.arch = getenv("MACHINE");
1.223 kristaps 365: #ifdef MACHINE
1.216 schwarze 366: if (search.arch == NULL)
367: search.arch = MACHINE;
1.223 kristaps 368: #endif
1.185 schwarze 369: }
1.182 schwarze 370:
1.180 schwarze 371: /* man(1), whatis(1), apropos(1) */
372:
373: if (search.argmode != ARG_FILE) {
1.199 schwarze 374: if (search.argmode == ARG_NAME &&
375: outmode == OUTMODE_ONE)
376: search.firstmatch = 1;
1.182 schwarze 377:
378: /* Access the mandoc database. */
379:
1.229 schwarze 380: manconf_parse(&conf, conf_file, defpaths, auxpaths);
381: if ( ! mansearch(&search, &conf.manpath,
382: argc, argv, &res, &sz))
1.180 schwarze 383: usage(search.argmode);
1.213 schwarze 384:
1.305 schwarze 385: if (sz == 0 && search.argmode == ARG_NAME)
386: fs_search(&search, &conf.manpath,
387: argc, argv, &res, &sz);
388:
389: if (search.argmode == ARG_NAME) {
390: for (c = 0; c < argc; c++) {
391: if (strchr(argv[c], '/') == NULL)
392: continue;
393: if (access(argv[c], R_OK) == -1) {
394: warn("%s", argv[c]);
395: continue;
396: }
397: res = mandoc_reallocarray(res,
398: sz + 1, sizeof(*res));
399: res[sz].file = mandoc_strdup(argv[c]);
400: res[sz].names = NULL;
401: res[sz].output = NULL;
402: res[sz].ipath = SIZE_MAX;
403: res[sz].sec = 10;
404: res[sz].form = FORM_SRC;
405: sz++;
406: }
1.237 schwarze 407: }
1.187 schwarze 408:
409: if (sz == 0) {
1.305 schwarze 410: if (search.argmode != ARG_NAME)
411: warnx("nothing appropriate");
1.312 schwarze 412: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.187 schwarze 413: goto out;
414: }
1.182 schwarze 415:
416: /*
417: * For standard man(1) and -a output mode,
418: * prepare for copying filename pointers
419: * into the program parameter array.
420: */
421:
422: if (outmode == OUTMODE_ONE) {
423: argc = 1;
1.264 schwarze 424: best_prio = 20;
1.186 schwarze 425: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 426: argc = (int)sz;
427:
428: /* Iterate all matching manuals. */
429:
1.213 schwarze 430: resp = res;
1.181 schwarze 431: for (i = 0; i < sz; i++) {
432: if (outmode == OUTMODE_FLN)
433: puts(res[i].file);
1.182 schwarze 434: else if (outmode == OUTMODE_LST)
1.181 schwarze 435: printf("%s - %s\n", res[i].names,
436: res[i].output == NULL ? "" :
437: res[i].output);
1.186 schwarze 438: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 439: /* Search for the best section. */
1.264 schwarze 440: sec = res[i].file;
441: sec += strcspn(sec, "123456789");
442: if (sec[0] == '\0')
1.182 schwarze 443: continue;
1.264 schwarze 444: prio = sec_prios[sec[0] - '1'];
445: if (sec[1] != '/')
446: prio += 10;
1.182 schwarze 447: if (prio >= best_prio)
448: continue;
449: best_prio = prio;
1.186 schwarze 450: resp = res + i;
1.182 schwarze 451: }
1.181 schwarze 452: }
1.182 schwarze 453:
454: /*
455: * For man(1), -a and -i output mode, fall through
456: * to the main mandoc(1) code iterating files
457: * and running the parsers on each of them.
458: */
459:
460: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
461: goto out;
1.180 schwarze 462: }
463:
464: /* mandoc(1) */
465:
1.255 schwarze 466: #if HAVE_PLEDGE
1.260 schwarze 467: if (use_pager) {
468: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
469: err((int)MANDOCLEVEL_SYSERR, "pledge");
470: } else {
471: if (pledge("stdio rpath", NULL) == -1)
472: err((int)MANDOCLEVEL_SYSERR, "pledge");
473: }
1.255 schwarze 474: #endif
475:
1.286 schwarze 476: if (search.argmode == ARG_FILE)
477: moptions(&options, auxpaths);
1.241 schwarze 478:
1.249 schwarze 479: mchars_alloc();
1.312 schwarze 480: curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
1.154 kristaps 481:
1.219 schwarze 482: if (argc < 1) {
1.244 schwarze 483: if (use_pager)
484: tag_files = tag_init();
1.312 schwarze 485: thisarg = "<stdin>";
486: mandoc_msg_setinfilename(thisarg);
487: parse(&curp, STDIN_FILENO, thisarg);
488: mandoc_msg_setinfilename(NULL);
1.212 schwarze 489: }
1.64 kristaps 490:
1.305 schwarze 491: /*
492: * Remember the original working directory, if possible.
493: * This will be needed if some names on the command line
494: * are page names and some are relative file names.
495: * Do not error out if the current directory is not
496: * readable: Maybe it won't be needed after all.
497: */
498: startdir = open(".", O_RDONLY | O_DIRECTORY);
499:
1.219 schwarze 500: while (argc > 0) {
1.305 schwarze 501:
502: /*
503: * Changing directories is not needed in ARG_FILE mode.
504: * Do it on a best-effort basis. Even in case of
505: * failure, some functionality may still work.
506: */
507: if (resp != NULL) {
508: if (resp->ipath != SIZE_MAX)
509: (void)chdir(conf.manpath.paths[resp->ipath]);
510: else if (startdir != -1)
511: (void)fchdir(startdir);
1.312 schwarze 512: thisarg = resp->file;
513: } else
514: thisarg = *argv;
1.305 schwarze 515:
1.312 schwarze 516: fd = mparse_open(curp.mp, thisarg);
1.212 schwarze 517: if (fd != -1) {
1.244 schwarze 518: if (use_pager) {
1.309 schwarze 519: use_pager = 0;
1.244 schwarze 520: tag_files = tag_init();
1.309 schwarze 521: if (conf.output.tag != NULL &&
522: tag_files->tagname == NULL)
523: tag_files->tagname =
524: *conf.output.tag != '\0' ?
525: conf.output.tag : *argv;
1.244 schwarze 526: }
1.212 schwarze 527:
1.314 schwarze 528: mandoc_msg_setinfilename(thisarg);
1.312 schwarze 529: if (resp == NULL || resp->form == FORM_SRC)
530: parse(&curp, fd, thisarg);
1.305 schwarze 531: else
1.230 schwarze 532: passthrough(resp->file, fd,
533: conf.output.synopsisonly);
1.314 schwarze 534: mandoc_msg_setinfilename(NULL);
1.302 schwarze 535:
536: if (ferror(stdout)) {
537: if (tag_files != NULL) {
538: warn("%s", tag_files->ofn);
539: tag_unlink();
540: tag_files = NULL;
541: } else
542: warn("stdout");
1.312 schwarze 543: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.302 schwarze 544: break;
545: }
1.212 schwarze 546:
1.276 schwarze 547: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
548: if (curp.outdata == NULL)
549: outdata_alloc(&curp);
1.267 schwarze 550: terminal_sepline(curp.outdata);
1.276 schwarze 551: }
1.314 schwarze 552: } else
553: mandoc_msg(MANDOCERR_FILE, 0, 0,
554: "%s", strerror(errno));
1.192 schwarze 555:
1.312 schwarze 556: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 557: break;
1.210 schwarze 558:
1.212 schwarze 559: if (resp != NULL)
560: resp++;
561: else
562: argv++;
563: if (--argc)
564: mparse_reset(curp.mp);
1.1 kristaps 565: }
1.305 schwarze 566: if (startdir != -1) {
567: (void)fchdir(startdir);
568: close(startdir);
569: }
1.1 kristaps 570:
1.252 schwarze 571: if (curp.outdata != NULL) {
572: switch (curp.outtype) {
573: case OUTT_HTML:
574: html_free(curp.outdata);
575: break;
576: case OUTT_UTF8:
577: case OUTT_LOCALE:
578: case OUTT_ASCII:
579: ascii_free(curp.outdata);
580: break;
581: case OUTT_PDF:
582: case OUTT_PS:
583: pspdf_free(curp.outdata);
584: break;
585: default:
586: break;
587: }
1.250 schwarze 588: }
1.294 schwarze 589: mandoc_xr_free();
1.195 schwarze 590: mparse_free(curp.mp);
1.249 schwarze 591: mchars_free();
1.182 schwarze 592:
593: out:
594: if (search.argmode != ARG_FILE) {
1.229 schwarze 595: manconf_free(&conf);
1.182 schwarze 596: mansearch_free(res, sz);
597: }
598:
1.293 schwarze 599: free(curp.os_s);
1.1 kristaps 600:
1.224 schwarze 601: /*
1.244 schwarze 602: * When using a pager, finish writing both temporary files,
603: * fork it, wait for the user to close it, and clean up.
1.224 schwarze 604: */
605:
1.244 schwarze 606: if (tag_files != NULL) {
1.225 schwarze 607: fclose(stdout);
1.239 schwarze 608: tag_write();
1.259 schwarze 609: man_pgid = getpgid(0);
610: tag_files->tcpgid = man_pgid == getpid() ?
611: getpgid(getppid()) : man_pgid;
612: pager_pid = 0;
613: signum = SIGSTOP;
1.258 schwarze 614: for (;;) {
1.259 schwarze 615:
616: /* Stop here until moved to the foreground. */
617:
1.279 schwarze 618: tc_pgid = tcgetpgrp(tag_files->ofd);
1.259 schwarze 619: if (tc_pgid != man_pgid) {
620: if (tc_pgid == pager_pid) {
1.279 schwarze 621: (void)tcsetpgrp(tag_files->ofd,
1.259 schwarze 622: man_pgid);
623: if (signum == SIGTTIN)
624: continue;
625: } else
626: tag_files->tcpgid = tc_pgid;
627: kill(0, signum);
628: continue;
629: }
630:
631: /* Once in the foreground, activate the pager. */
632:
633: if (pager_pid) {
1.279 schwarze 634: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.259 schwarze 635: kill(pager_pid, SIGCONT);
636: } else
637: pager_pid = spawn_pager(tag_files);
638:
639: /* Wait for the pager to stop or exit. */
640:
641: while ((pid = waitpid(pager_pid, &status,
642: WUNTRACED)) == -1 && errno == EINTR)
643: continue;
644:
645: if (pid == -1) {
1.258 schwarze 646: warn("wait");
1.312 schwarze 647: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.258 schwarze 648: break;
649: }
650: if (!WIFSTOPPED(status))
651: break;
652:
1.259 schwarze 653: signum = WSTOPSIG(status);
1.258 schwarze 654: }
1.239 schwarze 655: tag_unlink();
1.225 schwarze 656: }
1.312 schwarze 657: return (int)mandoc_msg_getrc();
1.1 kristaps 658: }
659:
1.55 kristaps 660: static void
1.180 schwarze 661: usage(enum argmode argmode)
1.1 kristaps 662: {
663:
1.180 schwarze 664: switch (argmode) {
665: case ARG_FILE:
1.287 schwarze 666: fputs("usage: mandoc [-ac] [-I os=name] "
667: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 668: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 669: break;
670: case ARG_NAME:
1.287 schwarze 671: fputs("usage: man [-acfhklw] [-C file] [-M path] "
672: "[-m path] [-S subsection]\n"
673: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 674: break;
675: case ARG_WORD:
1.287 schwarze 676: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 677: "[-M path] [-m path] [-O outkey] [-S arch]\n"
678: "\t [-s section] name ...\n", stderr);
1.180 schwarze 679: break;
680: case ARG_EXPR:
1.287 schwarze 681: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 682: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 683: "\t [-s section] expression ...\n", stderr);
684: break;
685: }
1.105 kristaps 686: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 687: }
1.213 schwarze 688:
689: static int
690: fs_lookup(const struct manpaths *paths, size_t ipath,
691: const char *sec, const char *arch, const char *name,
692: struct manpage **res, size_t *ressz)
693: {
1.222 schwarze 694: glob_t globinfo;
1.213 schwarze 695: struct manpage *page;
696: char *file;
1.274 schwarze 697: int globres;
698: enum form form;
1.213 schwarze 699:
1.222 schwarze 700: form = FORM_SRC;
1.213 schwarze 701: mandoc_asprintf(&file, "%s/man%s/%s.%s",
702: paths->paths[ipath], sec, name, sec);
1.222 schwarze 703: if (access(file, R_OK) != -1)
1.213 schwarze 704: goto found;
705: free(file);
706:
707: mandoc_asprintf(&file, "%s/cat%s/%s.0",
708: paths->paths[ipath], sec, name);
709: if (access(file, R_OK) != -1) {
710: form = FORM_CAT;
711: goto found;
712: }
713: free(file);
714:
715: if (arch != NULL) {
716: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
717: paths->paths[ipath], sec, arch, name, sec);
1.222 schwarze 718: if (access(file, R_OK) != -1)
1.213 schwarze 719: goto found;
720: free(file);
721: }
1.222 schwarze 722:
1.240 schwarze 723: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 724: paths->paths[ipath], sec, name);
725: globres = glob(file, 0, NULL, &globinfo);
726: if (globres != 0 && globres != GLOB_NOMATCH)
1.247 schwarze 727: warn("%s: glob", file);
1.222 schwarze 728: free(file);
729: if (globres == 0)
730: file = mandoc_strdup(*globinfo.gl_pathv);
731: globfree(&globinfo);
1.296 schwarze 732: if (globres == 0)
733: goto found;
734: if (res != NULL || ipath + 1 != paths->sz)
1.245 schwarze 735: return 0;
1.213 schwarze 736:
1.296 schwarze 737: mandoc_asprintf(&file, "%s.%s", name, sec);
738: globres = access(file, R_OK);
739: free(file);
740: return globres != -1;
741:
1.213 schwarze 742: found:
1.266 schwarze 743: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
744: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 745: if (res == NULL) {
746: free(file);
1.295 schwarze 747: return 1;
1.296 schwarze 748: }
1.213 schwarze 749: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
750: page = *res + (*ressz - 1);
751: page->file = file;
752: page->names = NULL;
753: page->output = NULL;
754: page->ipath = ipath;
755: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
756: page->form = form;
1.245 schwarze 757: return 1;
1.213 schwarze 758: }
759:
1.295 schwarze 760: static int
1.213 schwarze 761: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
762: int argc, char **argv, struct manpage **res, size_t *ressz)
763: {
764: const char *const sections[] =
1.264 schwarze 765: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 766: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
767:
768: size_t ipath, isec, lastsz;
769:
770: assert(cfg->argmode == ARG_NAME);
771:
1.295 schwarze 772: if (res != NULL)
773: *res = NULL;
1.213 schwarze 774: *ressz = lastsz = 0;
775: while (argc) {
776: for (ipath = 0; ipath < paths->sz; ipath++) {
777: if (cfg->sec != NULL) {
778: if (fs_lookup(paths, ipath, cfg->sec,
779: cfg->arch, *argv, res, ressz) &&
780: cfg->firstmatch)
1.295 schwarze 781: return 1;
1.213 schwarze 782: } else for (isec = 0; isec < nsec; isec++)
783: if (fs_lookup(paths, ipath, sections[isec],
784: cfg->arch, *argv, res, ressz) &&
785: cfg->firstmatch)
1.295 schwarze 786: return 1;
1.213 schwarze 787: }
1.305 schwarze 788: if (res != NULL && *ressz == lastsz &&
1.307 schwarze 789: strchr(*argv, '/') == NULL) {
790: if (cfg->sec == NULL)
791: warnx("No entry for %s in the manual.",
792: *argv);
793: else
794: warnx("No entry for %s in section %s "
795: "of the manual.", *argv, cfg->sec);
796: }
1.213 schwarze 797: lastsz = *ressz;
798: argv++;
799: argc--;
800: }
1.295 schwarze 801: return 0;
1.213 schwarze 802: }
1.68 joerg 803:
1.64 kristaps 804: static void
1.227 schwarze 805: parse(struct curparse *curp, int fd, const char *file)
1.1 kristaps 806: {
1.315 ! schwarze 807: struct roff_meta *meta;
1.112 kristaps 808:
1.154 kristaps 809: /* Begin by parsing the file itself. */
1.112 kristaps 810:
1.154 kristaps 811: assert(file);
1.263 schwarze 812: assert(fd >= 0);
1.112 kristaps 813:
1.312 schwarze 814: mparse_readfd(curp->mp, fd, file);
1.261 schwarze 815: if (fd != STDIN_FILENO)
816: close(fd);
1.112 kristaps 817:
1.1 kristaps 818: /*
1.154 kristaps 819: * With -Wstop and warnings or errors of at least the requested
820: * level, do not produce output.
1.1 kristaps 821: */
822:
1.312 schwarze 823: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 824: return;
1.111 kristaps 825:
1.276 schwarze 826: if (curp->outdata == NULL)
827: outdata_alloc(curp);
1.111 kristaps 828:
1.315 ! schwarze 829: mandoc_xr_reset();
! 830: meta = mparse_result(curp->mp);
1.250 schwarze 831:
832: /* Execute the out device, if it exists. */
833:
1.315 ! schwarze 834: if (meta->macroset == MACROSET_MDOC) {
1.111 kristaps 835: switch (curp->outtype) {
1.173 schwarze 836: case OUTT_HTML:
1.315 ! schwarze 837: html_mdoc(curp->outdata, meta);
1.111 kristaps 838: break;
1.173 schwarze 839: case OUTT_TREE:
1.315 ! schwarze 840: tree_mdoc(curp->outdata, meta);
1.111 kristaps 841: break;
1.173 schwarze 842: case OUTT_MAN:
1.315 ! schwarze 843: man_mdoc(curp->outdata, meta);
1.164 schwarze 844: break;
1.173 schwarze 845: case OUTT_PDF:
846: case OUTT_ASCII:
847: case OUTT_UTF8:
848: case OUTT_LOCALE:
849: case OUTT_PS:
1.315 ! schwarze 850: terminal_mdoc(curp->outdata, meta);
1.250 schwarze 851: break;
1.285 schwarze 852: case OUTT_MARKDOWN:
1.315 ! schwarze 853: markdown_mdoc(curp->outdata, meta);
1.285 schwarze 854: break;
1.250 schwarze 855: default:
856: break;
857: }
858: }
1.315 ! schwarze 859: if (meta->macroset == MACROSET_MAN) {
1.250 schwarze 860: switch (curp->outtype) {
861: case OUTT_HTML:
1.315 ! schwarze 862: html_man(curp->outdata, meta);
1.250 schwarze 863: break;
864: case OUTT_TREE:
1.315 ! schwarze 865: tree_man(curp->outdata, meta);
1.250 schwarze 866: break;
867: case OUTT_MAN:
1.308 schwarze 868: mparse_copy(curp->mp);
1.250 schwarze 869: break;
870: case OUTT_PDF:
871: case OUTT_ASCII:
872: case OUTT_UTF8:
873: case OUTT_LOCALE:
874: case OUTT_PS:
1.315 ! schwarze 875: terminal_man(curp->outdata, meta);
1.111 kristaps 876: break;
877: default:
878: break;
879: }
1.276 schwarze 880: }
1.312 schwarze 881: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
882: check_xr();
1.294 schwarze 883: }
884:
885: static void
1.312 schwarze 886: check_xr(void)
1.294 schwarze 887: {
888: static struct manpaths paths;
889: struct mansearch search;
890: struct mandoc_xr *xr;
891: size_t sz;
892:
893: if (paths.sz == 0)
894: manpath_base(&paths);
895:
896: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 897: if (xr->line == -1)
898: continue;
1.294 schwarze 899: search.arch = NULL;
900: search.sec = xr->sec;
901: search.outkey = NULL;
902: search.argmode = ARG_NAME;
903: search.firstmatch = 1;
904: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 905: continue;
906: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.294 schwarze 907: continue;
1.298 schwarze 908: if (xr->count == 1)
1.313 schwarze 909: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
910: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 911: else
1.313 schwarze 912: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
913: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 914: xr->name, xr->sec, xr->count);
1.294 schwarze 915: }
1.276 schwarze 916: }
917:
918: static void
919: outdata_alloc(struct curparse *curp)
920: {
921: switch (curp->outtype) {
922: case OUTT_HTML:
923: curp->outdata = html_alloc(curp->outopts);
924: break;
925: case OUTT_UTF8:
926: curp->outdata = utf8_alloc(curp->outopts);
927: break;
928: case OUTT_LOCALE:
929: curp->outdata = locale_alloc(curp->outopts);
930: break;
931: case OUTT_ASCII:
932: curp->outdata = ascii_alloc(curp->outopts);
933: break;
934: case OUTT_PDF:
935: curp->outdata = pdf_alloc(curp->outopts);
936: break;
937: case OUTT_PS:
938: curp->outdata = ps_alloc(curp->outopts);
939: break;
940: default:
941: break;
1.111 kristaps 942: }
1.186 schwarze 943: }
944:
1.227 schwarze 945: static void
1.197 schwarze 946: passthrough(const char *file, int fd, int synopsis_only)
1.186 schwarze 947: {
1.197 schwarze 948: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
949: const char synr[] = "SYNOPSIS";
950:
951: FILE *stream;
1.186 schwarze 952: const char *syscall;
1.257 schwarze 953: char *line, *cp;
954: size_t linesz;
1.277 schwarze 955: ssize_t len, written;
1.197 schwarze 956: int print;
1.210 schwarze 957:
1.257 schwarze 958: line = NULL;
959: linesz = 0;
1.197 schwarze 960:
1.277 schwarze 961: if (fflush(stdout) == EOF) {
962: syscall = "fflush";
963: goto fail;
964: }
965:
1.197 schwarze 966: if ((stream = fdopen(fd, "r")) == NULL) {
967: close(fd);
968: syscall = "fdopen";
969: goto fail;
970: }
1.186 schwarze 971:
1.197 schwarze 972: print = 0;
1.277 schwarze 973: while ((len = getline(&line, &linesz, stream)) != -1) {
1.257 schwarze 974: cp = line;
1.197 schwarze 975: if (synopsis_only) {
976: if (print) {
1.257 schwarze 977: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 978: goto done;
1.277 schwarze 979: while (isspace((unsigned char)*cp)) {
1.257 schwarze 980: cp++;
1.277 schwarze 981: len--;
982: }
1.197 schwarze 983: } else {
1.257 schwarze 984: if (strcmp(cp, synb) == 0 ||
985: strcmp(cp, synr) == 0)
1.197 schwarze 986: print = 1;
987: continue;
988: }
989: }
1.277 schwarze 990: for (; len > 0; len -= written) {
991: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
992: continue;
1.257 schwarze 993: fclose(stream);
1.277 schwarze 994: syscall = "write";
1.257 schwarze 995: goto fail;
996: }
1.197 schwarze 997: }
1.186 schwarze 998:
1.197 schwarze 999: if (ferror(stream)) {
1000: fclose(stream);
1.257 schwarze 1001: syscall = "getline";
1.197 schwarze 1002: goto fail;
1003: }
1.193 schwarze 1004:
1.197 schwarze 1005: done:
1.257 schwarze 1006: free(line);
1.197 schwarze 1007: fclose(stream);
1.227 schwarze 1008: return;
1.186 schwarze 1009:
1010: fail:
1.257 schwarze 1011: free(line);
1.247 schwarze 1012: warn("%s: SYSERR: %s", file, syscall);
1.312 schwarze 1013: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.194 schwarze 1014: }
1015:
1016: static int
1017: koptions(int *options, char *arg)
1018: {
1019:
1020: if ( ! strcmp(arg, "utf-8")) {
1021: *options |= MPARSE_UTF8;
1022: *options &= ~MPARSE_LATIN1;
1023: } else if ( ! strcmp(arg, "iso-8859-1")) {
1024: *options |= MPARSE_LATIN1;
1025: *options &= ~MPARSE_UTF8;
1026: } else if ( ! strcmp(arg, "us-ascii")) {
1027: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
1028: } else {
1.247 schwarze 1029: warnx("-K %s: Bad argument", arg);
1.245 schwarze 1030: return 0;
1.194 schwarze 1031: }
1.245 schwarze 1032: return 1;
1.10 kristaps 1033: }
1034:
1.286 schwarze 1035: static void
1.170 schwarze 1036: moptions(int *options, char *arg)
1.10 kristaps 1037: {
1038:
1.180 schwarze 1039: if (arg == NULL)
1.286 schwarze 1040: return;
1041: if (strcmp(arg, "doc") == 0)
1.170 schwarze 1042: *options |= MPARSE_MDOC;
1.286 schwarze 1043: else if (strcmp(arg, "an") == 0)
1.170 schwarze 1044: *options |= MPARSE_MAN;
1.1 kristaps 1045: }
1046:
1047: static int
1.60 kristaps 1048: toptions(struct curparse *curp, char *arg)
1.1 kristaps 1049: {
1050:
1051: if (0 == strcmp(arg, "ascii"))
1.60 kristaps 1052: curp->outtype = OUTT_ASCII;
1053: else if (0 == strcmp(arg, "lint")) {
1054: curp->outtype = OUTT_LINT;
1.312 schwarze 1055: mandoc_msg_setoutfile(stdout);
1056: mandoc_msg_setmin(MANDOCERR_BASE);
1.154 kristaps 1057: } else if (0 == strcmp(arg, "tree"))
1.60 kristaps 1058: curp->outtype = OUTT_TREE;
1.164 schwarze 1059: else if (0 == strcmp(arg, "man"))
1060: curp->outtype = OUTT_MAN;
1.43 kristaps 1061: else if (0 == strcmp(arg, "html"))
1.60 kristaps 1062: curp->outtype = OUTT_HTML;
1.285 schwarze 1063: else if (0 == strcmp(arg, "markdown"))
1064: curp->outtype = OUTT_MARKDOWN;
1.163 kristaps 1065: else if (0 == strcmp(arg, "utf8"))
1066: curp->outtype = OUTT_UTF8;
1.162 kristaps 1067: else if (0 == strcmp(arg, "locale"))
1068: curp->outtype = OUTT_LOCALE;
1.85 kristaps 1069: else if (0 == strcmp(arg, "ps"))
1070: curp->outtype = OUTT_PS;
1.100 kristaps 1071: else if (0 == strcmp(arg, "pdf"))
1072: curp->outtype = OUTT_PDF;
1.1 kristaps 1073: else {
1.247 schwarze 1074: warnx("-T %s: Bad argument", arg);
1.245 schwarze 1075: return 0;
1.1 kristaps 1076: }
1077:
1.245 schwarze 1078: return 1;
1.1 kristaps 1079: }
1080:
1081: static int
1.103 schwarze 1082: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1083: {
1.34 kristaps 1084: char *v, *o;
1.293 schwarze 1085: const char *toks[11];
1.1 kristaps 1086:
1.103 schwarze 1087: toks[0] = "stop";
1088: toks[1] = "all";
1.293 schwarze 1089: toks[2] = "base";
1090: toks[3] = "style";
1091: toks[4] = "warning";
1092: toks[5] = "error";
1093: toks[6] = "unsupp";
1094: toks[7] = "fatal";
1095: toks[8] = "openbsd";
1096: toks[9] = "netbsd";
1097: toks[10] = NULL;
1.1 kristaps 1098:
1.34 kristaps 1099: while (*arg) {
1100: o = arg;
1.272 schwarze 1101: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1102: case 0:
1.103 schwarze 1103: curp->wstop = 1;
1.1 kristaps 1104: break;
1.173 schwarze 1105: case 1:
1106: case 2:
1.312 schwarze 1107: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1108: break;
1109: case 3:
1.312 schwarze 1110: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1111: break;
1.290 schwarze 1112: case 4:
1.312 schwarze 1113: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1114: break;
1.290 schwarze 1115: case 5:
1.312 schwarze 1116: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1117: break;
1.290 schwarze 1118: case 6:
1.312 schwarze 1119: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1120: break;
1121: case 7:
1.312 schwarze 1122: mandoc_msg_setmin(MANDOCERR_MAX);
1.293 schwarze 1123: break;
1124: case 8:
1.312 schwarze 1125: mandoc_msg_setmin(MANDOCERR_BASE);
1.293 schwarze 1126: curp->os_e = MANDOC_OS_OPENBSD;
1127: break;
1128: case 9:
1.312 schwarze 1129: mandoc_msg_setmin(MANDOCERR_BASE);
1.293 schwarze 1130: curp->os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1131: break;
1.1 kristaps 1132: default:
1.247 schwarze 1133: warnx("-W %s: Bad argument", o);
1.245 schwarze 1134: return 0;
1.1 kristaps 1135: }
1.34 kristaps 1136: }
1.245 schwarze 1137: return 1;
1.183 schwarze 1138: }
1139:
1.225 schwarze 1140: static pid_t
1.244 schwarze 1141: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1142: {
1.265 schwarze 1143: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1144: #define MAX_PAGER_ARGS 16
1145: char *argv[MAX_PAGER_ARGS];
1146: const char *pager;
1147: char *cp;
1.239 schwarze 1148: size_t cmdlen;
1.309 schwarze 1149: int argc, use_ofn;
1.225 schwarze 1150: pid_t pager_pid;
1.183 schwarze 1151:
1.239 schwarze 1152: pager = getenv("MANPAGER");
1153: if (pager == NULL || *pager == '\0')
1154: pager = getenv("PAGER");
1155: if (pager == NULL || *pager == '\0')
1156: pager = "more -s";
1157: cp = mandoc_strdup(pager);
1158:
1159: /*
1160: * Parse the pager command into words.
1161: * Intentionally do not do anything fancy here.
1162: */
1163:
1164: argc = 0;
1.309 schwarze 1165: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1166: argv[argc++] = cp;
1167: cp = strchr(cp, ' ');
1168: if (cp == NULL)
1169: break;
1170: *cp++ = '\0';
1171: while (*cp == ' ')
1172: cp++;
1173: if (*cp == '\0')
1174: break;
1175: }
1176:
1.268 schwarze 1177: /* For less(1), use the tag file. */
1.239 schwarze 1178:
1.309 schwarze 1179: use_ofn = 1;
1.244 schwarze 1180: if ((cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1181: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1182: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1183: argv[argc++] = mandoc_strdup("-T");
1184: argv[argc++] = tag_files->tfn;
1.309 schwarze 1185: if (tag_files->tagname != NULL) {
1186: argv[argc++] = mandoc_strdup("-t");
1187: argv[argc++] = tag_files->tagname;
1188: use_ofn = 0;
1189: }
1.244 schwarze 1190: }
1.239 schwarze 1191: }
1.309 schwarze 1192: if (use_ofn)
1193: argv[argc++] = tag_files->ofn;
1.239 schwarze 1194: argv[argc] = NULL;
1195:
1.225 schwarze 1196: switch (pager_pid = fork()) {
1.183 schwarze 1197: case -1:
1.247 schwarze 1198: err((int)MANDOCLEVEL_SYSERR, "fork");
1.183 schwarze 1199: case 0:
1.224 schwarze 1200: break;
1201: default:
1.258 schwarze 1202: (void)setpgid(pager_pid, 0);
1.279 schwarze 1203: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1204: #if HAVE_PLEDGE
1.258 schwarze 1205: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.255 schwarze 1206: err((int)MANDOCLEVEL_SYSERR, "pledge");
1207: #endif
1.259 schwarze 1208: tag_files->pager_pid = pager_pid;
1.245 schwarze 1209: return pager_pid;
1.184 schwarze 1210: }
1211:
1.224 schwarze 1212: /* The child process becomes the pager. */
1.184 schwarze 1213:
1.247 schwarze 1214: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1215: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.244 schwarze 1216: close(tag_files->ofd);
1.303 schwarze 1217: assert(tag_files->tfd == -1);
1.265 schwarze 1218:
1219: /* Do not start the pager before controlling the terminal. */
1220:
1.279 schwarze 1221: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1222: nanosleep(&timeout, NULL);
1223:
1.184 schwarze 1224: execvp(argv[0], argv);
1.247 schwarze 1225: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.71 kristaps 1226: }
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