Annotation of mandoc/main.c, Revision 1.316
1.316 ! schwarze 1: /* $Id: main.c,v 1.315 2018/12/30 00:49:55 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;
1.316 ! schwarze 126: char *oarg, *tagarg;
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:
1.316 ! schwarze 371: /*
! 372: * Use the first argument for -O tag in addition to
! 373: * using it as a search term for man(1) or apropos(1).
! 374: */
! 375:
! 376: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
! 377: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
! 378: strchr(*argv, '=') : NULL;
! 379: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
! 380: }
! 381:
1.180 schwarze 382: /* man(1), whatis(1), apropos(1) */
383:
384: if (search.argmode != ARG_FILE) {
1.199 schwarze 385: if (search.argmode == ARG_NAME &&
386: outmode == OUTMODE_ONE)
387: search.firstmatch = 1;
1.182 schwarze 388:
389: /* Access the mandoc database. */
390:
1.229 schwarze 391: manconf_parse(&conf, conf_file, defpaths, auxpaths);
392: if ( ! mansearch(&search, &conf.manpath,
393: argc, argv, &res, &sz))
1.180 schwarze 394: usage(search.argmode);
1.213 schwarze 395:
1.305 schwarze 396: if (sz == 0 && search.argmode == ARG_NAME)
397: fs_search(&search, &conf.manpath,
398: argc, argv, &res, &sz);
399:
400: if (search.argmode == ARG_NAME) {
401: for (c = 0; c < argc; c++) {
402: if (strchr(argv[c], '/') == NULL)
403: continue;
404: if (access(argv[c], R_OK) == -1) {
405: warn("%s", argv[c]);
406: continue;
407: }
408: res = mandoc_reallocarray(res,
409: sz + 1, sizeof(*res));
410: res[sz].file = mandoc_strdup(argv[c]);
411: res[sz].names = NULL;
412: res[sz].output = NULL;
413: res[sz].ipath = SIZE_MAX;
414: res[sz].sec = 10;
415: res[sz].form = FORM_SRC;
416: sz++;
417: }
1.237 schwarze 418: }
1.187 schwarze 419:
420: if (sz == 0) {
1.305 schwarze 421: if (search.argmode != ARG_NAME)
422: warnx("nothing appropriate");
1.312 schwarze 423: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.187 schwarze 424: goto out;
425: }
1.182 schwarze 426:
427: /*
428: * For standard man(1) and -a output mode,
429: * prepare for copying filename pointers
430: * into the program parameter array.
431: */
432:
433: if (outmode == OUTMODE_ONE) {
434: argc = 1;
1.264 schwarze 435: best_prio = 20;
1.186 schwarze 436: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 437: argc = (int)sz;
438:
439: /* Iterate all matching manuals. */
440:
1.213 schwarze 441: resp = res;
1.181 schwarze 442: for (i = 0; i < sz; i++) {
443: if (outmode == OUTMODE_FLN)
444: puts(res[i].file);
1.182 schwarze 445: else if (outmode == OUTMODE_LST)
1.181 schwarze 446: printf("%s - %s\n", res[i].names,
447: res[i].output == NULL ? "" :
448: res[i].output);
1.186 schwarze 449: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 450: /* Search for the best section. */
1.264 schwarze 451: sec = res[i].file;
452: sec += strcspn(sec, "123456789");
453: if (sec[0] == '\0')
1.182 schwarze 454: continue;
1.264 schwarze 455: prio = sec_prios[sec[0] - '1'];
456: if (sec[1] != '/')
457: prio += 10;
1.182 schwarze 458: if (prio >= best_prio)
459: continue;
460: best_prio = prio;
1.186 schwarze 461: resp = res + i;
1.182 schwarze 462: }
1.181 schwarze 463: }
1.182 schwarze 464:
465: /*
466: * For man(1), -a and -i output mode, fall through
467: * to the main mandoc(1) code iterating files
468: * and running the parsers on each of them.
469: */
470:
471: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
472: goto out;
1.180 schwarze 473: }
474:
475: /* mandoc(1) */
476:
1.255 schwarze 477: #if HAVE_PLEDGE
1.260 schwarze 478: if (use_pager) {
479: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
480: err((int)MANDOCLEVEL_SYSERR, "pledge");
481: } else {
482: if (pledge("stdio rpath", NULL) == -1)
483: err((int)MANDOCLEVEL_SYSERR, "pledge");
484: }
1.255 schwarze 485: #endif
486:
1.286 schwarze 487: if (search.argmode == ARG_FILE)
488: moptions(&options, auxpaths);
1.241 schwarze 489:
1.249 schwarze 490: mchars_alloc();
1.312 schwarze 491: curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
1.154 kristaps 492:
1.219 schwarze 493: if (argc < 1) {
1.316 ! schwarze 494: if (use_pager) {
1.244 schwarze 495: tag_files = tag_init();
1.316 ! schwarze 496: tag_files->tagname = conf.output.tag;
! 497: }
1.312 schwarze 498: thisarg = "<stdin>";
499: mandoc_msg_setinfilename(thisarg);
500: parse(&curp, STDIN_FILENO, thisarg);
501: mandoc_msg_setinfilename(NULL);
1.212 schwarze 502: }
1.64 kristaps 503:
1.305 schwarze 504: /*
505: * Remember the original working directory, if possible.
506: * This will be needed if some names on the command line
507: * are page names and some are relative file names.
508: * Do not error out if the current directory is not
509: * readable: Maybe it won't be needed after all.
510: */
511: startdir = open(".", O_RDONLY | O_DIRECTORY);
512:
1.219 schwarze 513: while (argc > 0) {
1.305 schwarze 514:
515: /*
516: * Changing directories is not needed in ARG_FILE mode.
517: * Do it on a best-effort basis. Even in case of
518: * failure, some functionality may still work.
519: */
520: if (resp != NULL) {
521: if (resp->ipath != SIZE_MAX)
522: (void)chdir(conf.manpath.paths[resp->ipath]);
523: else if (startdir != -1)
524: (void)fchdir(startdir);
1.312 schwarze 525: thisarg = resp->file;
526: } else
527: thisarg = *argv;
1.305 schwarze 528:
1.312 schwarze 529: fd = mparse_open(curp.mp, thisarg);
1.212 schwarze 530: if (fd != -1) {
1.244 schwarze 531: if (use_pager) {
1.309 schwarze 532: use_pager = 0;
1.244 schwarze 533: tag_files = tag_init();
1.316 ! schwarze 534: tag_files->tagname = conf.output.tag;
1.244 schwarze 535: }
1.212 schwarze 536:
1.314 schwarze 537: mandoc_msg_setinfilename(thisarg);
1.312 schwarze 538: if (resp == NULL || resp->form == FORM_SRC)
539: parse(&curp, fd, thisarg);
1.305 schwarze 540: else
1.230 schwarze 541: passthrough(resp->file, fd,
542: conf.output.synopsisonly);
1.314 schwarze 543: mandoc_msg_setinfilename(NULL);
1.302 schwarze 544:
545: if (ferror(stdout)) {
546: if (tag_files != NULL) {
547: warn("%s", tag_files->ofn);
548: tag_unlink();
549: tag_files = NULL;
550: } else
551: warn("stdout");
1.312 schwarze 552: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.302 schwarze 553: break;
554: }
1.212 schwarze 555:
1.276 schwarze 556: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
557: if (curp.outdata == NULL)
558: outdata_alloc(&curp);
1.267 schwarze 559: terminal_sepline(curp.outdata);
1.276 schwarze 560: }
1.314 schwarze 561: } else
562: mandoc_msg(MANDOCERR_FILE, 0, 0,
563: "%s", strerror(errno));
1.192 schwarze 564:
1.312 schwarze 565: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 566: break;
1.210 schwarze 567:
1.212 schwarze 568: if (resp != NULL)
569: resp++;
570: else
571: argv++;
572: if (--argc)
573: mparse_reset(curp.mp);
1.1 kristaps 574: }
1.305 schwarze 575: if (startdir != -1) {
576: (void)fchdir(startdir);
577: close(startdir);
578: }
1.1 kristaps 579:
1.252 schwarze 580: if (curp.outdata != NULL) {
581: switch (curp.outtype) {
582: case OUTT_HTML:
583: html_free(curp.outdata);
584: break;
585: case OUTT_UTF8:
586: case OUTT_LOCALE:
587: case OUTT_ASCII:
588: ascii_free(curp.outdata);
589: break;
590: case OUTT_PDF:
591: case OUTT_PS:
592: pspdf_free(curp.outdata);
593: break;
594: default:
595: break;
596: }
1.250 schwarze 597: }
1.294 schwarze 598: mandoc_xr_free();
1.195 schwarze 599: mparse_free(curp.mp);
1.249 schwarze 600: mchars_free();
1.182 schwarze 601:
602: out:
603: if (search.argmode != ARG_FILE) {
1.229 schwarze 604: manconf_free(&conf);
1.182 schwarze 605: mansearch_free(res, sz);
606: }
607:
1.293 schwarze 608: free(curp.os_s);
1.1 kristaps 609:
1.224 schwarze 610: /*
1.244 schwarze 611: * When using a pager, finish writing both temporary files,
612: * fork it, wait for the user to close it, and clean up.
1.224 schwarze 613: */
614:
1.244 schwarze 615: if (tag_files != NULL) {
1.225 schwarze 616: fclose(stdout);
1.239 schwarze 617: tag_write();
1.259 schwarze 618: man_pgid = getpgid(0);
619: tag_files->tcpgid = man_pgid == getpid() ?
620: getpgid(getppid()) : man_pgid;
621: pager_pid = 0;
622: signum = SIGSTOP;
1.258 schwarze 623: for (;;) {
1.259 schwarze 624:
625: /* Stop here until moved to the foreground. */
626:
1.279 schwarze 627: tc_pgid = tcgetpgrp(tag_files->ofd);
1.259 schwarze 628: if (tc_pgid != man_pgid) {
629: if (tc_pgid == pager_pid) {
1.279 schwarze 630: (void)tcsetpgrp(tag_files->ofd,
1.259 schwarze 631: man_pgid);
632: if (signum == SIGTTIN)
633: continue;
634: } else
635: tag_files->tcpgid = tc_pgid;
636: kill(0, signum);
637: continue;
638: }
639:
640: /* Once in the foreground, activate the pager. */
641:
642: if (pager_pid) {
1.279 schwarze 643: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.259 schwarze 644: kill(pager_pid, SIGCONT);
645: } else
646: pager_pid = spawn_pager(tag_files);
647:
648: /* Wait for the pager to stop or exit. */
649:
650: while ((pid = waitpid(pager_pid, &status,
651: WUNTRACED)) == -1 && errno == EINTR)
652: continue;
653:
654: if (pid == -1) {
1.258 schwarze 655: warn("wait");
1.312 schwarze 656: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.258 schwarze 657: break;
658: }
659: if (!WIFSTOPPED(status))
660: break;
661:
1.259 schwarze 662: signum = WSTOPSIG(status);
1.258 schwarze 663: }
1.239 schwarze 664: tag_unlink();
1.225 schwarze 665: }
1.312 schwarze 666: return (int)mandoc_msg_getrc();
1.1 kristaps 667: }
668:
1.55 kristaps 669: static void
1.180 schwarze 670: usage(enum argmode argmode)
1.1 kristaps 671: {
672:
1.180 schwarze 673: switch (argmode) {
674: case ARG_FILE:
1.287 schwarze 675: fputs("usage: mandoc [-ac] [-I os=name] "
676: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 677: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 678: break;
679: case ARG_NAME:
1.287 schwarze 680: fputs("usage: man [-acfhklw] [-C file] [-M path] "
681: "[-m path] [-S subsection]\n"
682: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 683: break;
684: case ARG_WORD:
1.287 schwarze 685: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 686: "[-M path] [-m path] [-O outkey] [-S arch]\n"
687: "\t [-s section] name ...\n", stderr);
1.180 schwarze 688: break;
689: case ARG_EXPR:
1.287 schwarze 690: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 691: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 692: "\t [-s section] expression ...\n", stderr);
693: break;
694: }
1.105 kristaps 695: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 696: }
1.213 schwarze 697:
698: static int
699: fs_lookup(const struct manpaths *paths, size_t ipath,
700: const char *sec, const char *arch, const char *name,
701: struct manpage **res, size_t *ressz)
702: {
1.222 schwarze 703: glob_t globinfo;
1.213 schwarze 704: struct manpage *page;
705: char *file;
1.274 schwarze 706: int globres;
707: enum form form;
1.213 schwarze 708:
1.222 schwarze 709: form = FORM_SRC;
1.213 schwarze 710: mandoc_asprintf(&file, "%s/man%s/%s.%s",
711: paths->paths[ipath], sec, name, sec);
1.222 schwarze 712: if (access(file, R_OK) != -1)
1.213 schwarze 713: goto found;
714: free(file);
715:
716: mandoc_asprintf(&file, "%s/cat%s/%s.0",
717: paths->paths[ipath], sec, name);
718: if (access(file, R_OK) != -1) {
719: form = FORM_CAT;
720: goto found;
721: }
722: free(file);
723:
724: if (arch != NULL) {
725: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
726: paths->paths[ipath], sec, arch, name, sec);
1.222 schwarze 727: if (access(file, R_OK) != -1)
1.213 schwarze 728: goto found;
729: free(file);
730: }
1.222 schwarze 731:
1.240 schwarze 732: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 733: paths->paths[ipath], sec, name);
734: globres = glob(file, 0, NULL, &globinfo);
735: if (globres != 0 && globres != GLOB_NOMATCH)
1.247 schwarze 736: warn("%s: glob", file);
1.222 schwarze 737: free(file);
738: if (globres == 0)
739: file = mandoc_strdup(*globinfo.gl_pathv);
740: globfree(&globinfo);
1.296 schwarze 741: if (globres == 0)
742: goto found;
743: if (res != NULL || ipath + 1 != paths->sz)
1.245 schwarze 744: return 0;
1.213 schwarze 745:
1.296 schwarze 746: mandoc_asprintf(&file, "%s.%s", name, sec);
747: globres = access(file, R_OK);
748: free(file);
749: return globres != -1;
750:
1.213 schwarze 751: found:
1.266 schwarze 752: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
753: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 754: if (res == NULL) {
755: free(file);
1.295 schwarze 756: return 1;
1.296 schwarze 757: }
1.213 schwarze 758: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
759: page = *res + (*ressz - 1);
760: page->file = file;
761: page->names = NULL;
762: page->output = NULL;
763: page->ipath = ipath;
764: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
765: page->form = form;
1.245 schwarze 766: return 1;
1.213 schwarze 767: }
768:
1.295 schwarze 769: static int
1.213 schwarze 770: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
771: int argc, char **argv, struct manpage **res, size_t *ressz)
772: {
773: const char *const sections[] =
1.264 schwarze 774: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 775: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
776:
777: size_t ipath, isec, lastsz;
778:
779: assert(cfg->argmode == ARG_NAME);
780:
1.295 schwarze 781: if (res != NULL)
782: *res = NULL;
1.213 schwarze 783: *ressz = lastsz = 0;
784: while (argc) {
785: for (ipath = 0; ipath < paths->sz; ipath++) {
786: if (cfg->sec != NULL) {
787: if (fs_lookup(paths, ipath, cfg->sec,
788: cfg->arch, *argv, res, ressz) &&
789: cfg->firstmatch)
1.295 schwarze 790: return 1;
1.213 schwarze 791: } else for (isec = 0; isec < nsec; isec++)
792: if (fs_lookup(paths, ipath, sections[isec],
793: cfg->arch, *argv, res, ressz) &&
794: cfg->firstmatch)
1.295 schwarze 795: return 1;
1.213 schwarze 796: }
1.305 schwarze 797: if (res != NULL && *ressz == lastsz &&
1.307 schwarze 798: strchr(*argv, '/') == NULL) {
799: if (cfg->sec == NULL)
800: warnx("No entry for %s in the manual.",
801: *argv);
802: else
803: warnx("No entry for %s in section %s "
804: "of the manual.", *argv, cfg->sec);
805: }
1.213 schwarze 806: lastsz = *ressz;
807: argv++;
808: argc--;
809: }
1.295 schwarze 810: return 0;
1.213 schwarze 811: }
1.68 joerg 812:
1.64 kristaps 813: static void
1.227 schwarze 814: parse(struct curparse *curp, int fd, const char *file)
1.1 kristaps 815: {
1.315 schwarze 816: struct roff_meta *meta;
1.112 kristaps 817:
1.154 kristaps 818: /* Begin by parsing the file itself. */
1.112 kristaps 819:
1.154 kristaps 820: assert(file);
1.263 schwarze 821: assert(fd >= 0);
1.112 kristaps 822:
1.312 schwarze 823: mparse_readfd(curp->mp, fd, file);
1.261 schwarze 824: if (fd != STDIN_FILENO)
825: close(fd);
1.112 kristaps 826:
1.1 kristaps 827: /*
1.154 kristaps 828: * With -Wstop and warnings or errors of at least the requested
829: * level, do not produce output.
1.1 kristaps 830: */
831:
1.312 schwarze 832: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 833: return;
1.111 kristaps 834:
1.276 schwarze 835: if (curp->outdata == NULL)
836: outdata_alloc(curp);
1.111 kristaps 837:
1.315 schwarze 838: mandoc_xr_reset();
839: meta = mparse_result(curp->mp);
1.250 schwarze 840:
841: /* Execute the out device, if it exists. */
842:
1.315 schwarze 843: if (meta->macroset == MACROSET_MDOC) {
1.111 kristaps 844: switch (curp->outtype) {
1.173 schwarze 845: case OUTT_HTML:
1.315 schwarze 846: html_mdoc(curp->outdata, meta);
1.111 kristaps 847: break;
1.173 schwarze 848: case OUTT_TREE:
1.315 schwarze 849: tree_mdoc(curp->outdata, meta);
1.111 kristaps 850: break;
1.173 schwarze 851: case OUTT_MAN:
1.315 schwarze 852: man_mdoc(curp->outdata, meta);
1.164 schwarze 853: break;
1.173 schwarze 854: case OUTT_PDF:
855: case OUTT_ASCII:
856: case OUTT_UTF8:
857: case OUTT_LOCALE:
858: case OUTT_PS:
1.315 schwarze 859: terminal_mdoc(curp->outdata, meta);
1.250 schwarze 860: break;
1.285 schwarze 861: case OUTT_MARKDOWN:
1.315 schwarze 862: markdown_mdoc(curp->outdata, meta);
1.285 schwarze 863: break;
1.250 schwarze 864: default:
865: break;
866: }
867: }
1.315 schwarze 868: if (meta->macroset == MACROSET_MAN) {
1.250 schwarze 869: switch (curp->outtype) {
870: case OUTT_HTML:
1.315 schwarze 871: html_man(curp->outdata, meta);
1.250 schwarze 872: break;
873: case OUTT_TREE:
1.315 schwarze 874: tree_man(curp->outdata, meta);
1.250 schwarze 875: break;
876: case OUTT_MAN:
1.308 schwarze 877: mparse_copy(curp->mp);
1.250 schwarze 878: break;
879: case OUTT_PDF:
880: case OUTT_ASCII:
881: case OUTT_UTF8:
882: case OUTT_LOCALE:
883: case OUTT_PS:
1.315 schwarze 884: terminal_man(curp->outdata, meta);
1.111 kristaps 885: break;
886: default:
887: break;
888: }
1.276 schwarze 889: }
1.312 schwarze 890: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
891: check_xr();
1.294 schwarze 892: }
893:
894: static void
1.312 schwarze 895: check_xr(void)
1.294 schwarze 896: {
897: static struct manpaths paths;
898: struct mansearch search;
899: struct mandoc_xr *xr;
900: size_t sz;
901:
902: if (paths.sz == 0)
903: manpath_base(&paths);
904:
905: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 906: if (xr->line == -1)
907: continue;
1.294 schwarze 908: search.arch = NULL;
909: search.sec = xr->sec;
910: search.outkey = NULL;
911: search.argmode = ARG_NAME;
912: search.firstmatch = 1;
913: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 914: continue;
915: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.294 schwarze 916: continue;
1.298 schwarze 917: if (xr->count == 1)
1.313 schwarze 918: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
919: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 920: else
1.313 schwarze 921: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
922: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 923: xr->name, xr->sec, xr->count);
1.294 schwarze 924: }
1.276 schwarze 925: }
926:
927: static void
928: outdata_alloc(struct curparse *curp)
929: {
930: switch (curp->outtype) {
931: case OUTT_HTML:
932: curp->outdata = html_alloc(curp->outopts);
933: break;
934: case OUTT_UTF8:
935: curp->outdata = utf8_alloc(curp->outopts);
936: break;
937: case OUTT_LOCALE:
938: curp->outdata = locale_alloc(curp->outopts);
939: break;
940: case OUTT_ASCII:
941: curp->outdata = ascii_alloc(curp->outopts);
942: break;
943: case OUTT_PDF:
944: curp->outdata = pdf_alloc(curp->outopts);
945: break;
946: case OUTT_PS:
947: curp->outdata = ps_alloc(curp->outopts);
948: break;
949: default:
950: break;
1.111 kristaps 951: }
1.186 schwarze 952: }
953:
1.227 schwarze 954: static void
1.197 schwarze 955: passthrough(const char *file, int fd, int synopsis_only)
1.186 schwarze 956: {
1.197 schwarze 957: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
958: const char synr[] = "SYNOPSIS";
959:
960: FILE *stream;
1.186 schwarze 961: const char *syscall;
1.257 schwarze 962: char *line, *cp;
963: size_t linesz;
1.277 schwarze 964: ssize_t len, written;
1.197 schwarze 965: int print;
1.210 schwarze 966:
1.257 schwarze 967: line = NULL;
968: linesz = 0;
1.197 schwarze 969:
1.277 schwarze 970: if (fflush(stdout) == EOF) {
971: syscall = "fflush";
972: goto fail;
973: }
974:
1.197 schwarze 975: if ((stream = fdopen(fd, "r")) == NULL) {
976: close(fd);
977: syscall = "fdopen";
978: goto fail;
979: }
1.186 schwarze 980:
1.197 schwarze 981: print = 0;
1.277 schwarze 982: while ((len = getline(&line, &linesz, stream)) != -1) {
1.257 schwarze 983: cp = line;
1.197 schwarze 984: if (synopsis_only) {
985: if (print) {
1.257 schwarze 986: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 987: goto done;
1.277 schwarze 988: while (isspace((unsigned char)*cp)) {
1.257 schwarze 989: cp++;
1.277 schwarze 990: len--;
991: }
1.197 schwarze 992: } else {
1.257 schwarze 993: if (strcmp(cp, synb) == 0 ||
994: strcmp(cp, synr) == 0)
1.197 schwarze 995: print = 1;
996: continue;
997: }
998: }
1.277 schwarze 999: for (; len > 0; len -= written) {
1000: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
1001: continue;
1.257 schwarze 1002: fclose(stream);
1.277 schwarze 1003: syscall = "write";
1.257 schwarze 1004: goto fail;
1005: }
1.197 schwarze 1006: }
1.186 schwarze 1007:
1.197 schwarze 1008: if (ferror(stream)) {
1009: fclose(stream);
1.257 schwarze 1010: syscall = "getline";
1.197 schwarze 1011: goto fail;
1012: }
1.193 schwarze 1013:
1.197 schwarze 1014: done:
1.257 schwarze 1015: free(line);
1.197 schwarze 1016: fclose(stream);
1.227 schwarze 1017: return;
1.186 schwarze 1018:
1019: fail:
1.257 schwarze 1020: free(line);
1.247 schwarze 1021: warn("%s: SYSERR: %s", file, syscall);
1.312 schwarze 1022: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.194 schwarze 1023: }
1024:
1025: static int
1026: koptions(int *options, char *arg)
1027: {
1028:
1029: if ( ! strcmp(arg, "utf-8")) {
1030: *options |= MPARSE_UTF8;
1031: *options &= ~MPARSE_LATIN1;
1032: } else if ( ! strcmp(arg, "iso-8859-1")) {
1033: *options |= MPARSE_LATIN1;
1034: *options &= ~MPARSE_UTF8;
1035: } else if ( ! strcmp(arg, "us-ascii")) {
1036: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
1037: } else {
1.247 schwarze 1038: warnx("-K %s: Bad argument", arg);
1.245 schwarze 1039: return 0;
1.194 schwarze 1040: }
1.245 schwarze 1041: return 1;
1.10 kristaps 1042: }
1043:
1.286 schwarze 1044: static void
1.170 schwarze 1045: moptions(int *options, char *arg)
1.10 kristaps 1046: {
1047:
1.180 schwarze 1048: if (arg == NULL)
1.286 schwarze 1049: return;
1050: if (strcmp(arg, "doc") == 0)
1.170 schwarze 1051: *options |= MPARSE_MDOC;
1.286 schwarze 1052: else if (strcmp(arg, "an") == 0)
1.170 schwarze 1053: *options |= MPARSE_MAN;
1.1 kristaps 1054: }
1055:
1056: static int
1.60 kristaps 1057: toptions(struct curparse *curp, char *arg)
1.1 kristaps 1058: {
1059:
1060: if (0 == strcmp(arg, "ascii"))
1.60 kristaps 1061: curp->outtype = OUTT_ASCII;
1062: else if (0 == strcmp(arg, "lint")) {
1063: curp->outtype = OUTT_LINT;
1.312 schwarze 1064: mandoc_msg_setoutfile(stdout);
1065: mandoc_msg_setmin(MANDOCERR_BASE);
1.154 kristaps 1066: } else if (0 == strcmp(arg, "tree"))
1.60 kristaps 1067: curp->outtype = OUTT_TREE;
1.164 schwarze 1068: else if (0 == strcmp(arg, "man"))
1069: curp->outtype = OUTT_MAN;
1.43 kristaps 1070: else if (0 == strcmp(arg, "html"))
1.60 kristaps 1071: curp->outtype = OUTT_HTML;
1.285 schwarze 1072: else if (0 == strcmp(arg, "markdown"))
1073: curp->outtype = OUTT_MARKDOWN;
1.163 kristaps 1074: else if (0 == strcmp(arg, "utf8"))
1075: curp->outtype = OUTT_UTF8;
1.162 kristaps 1076: else if (0 == strcmp(arg, "locale"))
1077: curp->outtype = OUTT_LOCALE;
1.85 kristaps 1078: else if (0 == strcmp(arg, "ps"))
1079: curp->outtype = OUTT_PS;
1.100 kristaps 1080: else if (0 == strcmp(arg, "pdf"))
1081: curp->outtype = OUTT_PDF;
1.1 kristaps 1082: else {
1.247 schwarze 1083: warnx("-T %s: Bad argument", arg);
1.245 schwarze 1084: return 0;
1.1 kristaps 1085: }
1086:
1.245 schwarze 1087: return 1;
1.1 kristaps 1088: }
1089:
1090: static int
1.103 schwarze 1091: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1092: {
1.34 kristaps 1093: char *v, *o;
1.293 schwarze 1094: const char *toks[11];
1.1 kristaps 1095:
1.103 schwarze 1096: toks[0] = "stop";
1097: toks[1] = "all";
1.293 schwarze 1098: toks[2] = "base";
1099: toks[3] = "style";
1100: toks[4] = "warning";
1101: toks[5] = "error";
1102: toks[6] = "unsupp";
1103: toks[7] = "fatal";
1104: toks[8] = "openbsd";
1105: toks[9] = "netbsd";
1106: toks[10] = NULL;
1.1 kristaps 1107:
1.34 kristaps 1108: while (*arg) {
1109: o = arg;
1.272 schwarze 1110: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1111: case 0:
1.103 schwarze 1112: curp->wstop = 1;
1.1 kristaps 1113: break;
1.173 schwarze 1114: case 1:
1115: case 2:
1.312 schwarze 1116: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1117: break;
1118: case 3:
1.312 schwarze 1119: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1120: break;
1.290 schwarze 1121: case 4:
1.312 schwarze 1122: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1123: break;
1.290 schwarze 1124: case 5:
1.312 schwarze 1125: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1126: break;
1.290 schwarze 1127: case 6:
1.312 schwarze 1128: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1129: break;
1130: case 7:
1.312 schwarze 1131: mandoc_msg_setmin(MANDOCERR_MAX);
1.293 schwarze 1132: break;
1133: case 8:
1.312 schwarze 1134: mandoc_msg_setmin(MANDOCERR_BASE);
1.293 schwarze 1135: curp->os_e = MANDOC_OS_OPENBSD;
1136: break;
1137: case 9:
1.312 schwarze 1138: mandoc_msg_setmin(MANDOCERR_BASE);
1.293 schwarze 1139: curp->os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1140: break;
1.1 kristaps 1141: default:
1.247 schwarze 1142: warnx("-W %s: Bad argument", o);
1.245 schwarze 1143: return 0;
1.1 kristaps 1144: }
1.34 kristaps 1145: }
1.245 schwarze 1146: return 1;
1.183 schwarze 1147: }
1148:
1.225 schwarze 1149: static pid_t
1.244 schwarze 1150: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1151: {
1.265 schwarze 1152: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1153: #define MAX_PAGER_ARGS 16
1154: char *argv[MAX_PAGER_ARGS];
1155: const char *pager;
1156: char *cp;
1.239 schwarze 1157: size_t cmdlen;
1.309 schwarze 1158: int argc, use_ofn;
1.225 schwarze 1159: pid_t pager_pid;
1.183 schwarze 1160:
1.239 schwarze 1161: pager = getenv("MANPAGER");
1162: if (pager == NULL || *pager == '\0')
1163: pager = getenv("PAGER");
1164: if (pager == NULL || *pager == '\0')
1165: pager = "more -s";
1166: cp = mandoc_strdup(pager);
1167:
1168: /*
1169: * Parse the pager command into words.
1170: * Intentionally do not do anything fancy here.
1171: */
1172:
1173: argc = 0;
1.309 schwarze 1174: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1175: argv[argc++] = cp;
1176: cp = strchr(cp, ' ');
1177: if (cp == NULL)
1178: break;
1179: *cp++ = '\0';
1180: while (*cp == ' ')
1181: cp++;
1182: if (*cp == '\0')
1183: break;
1184: }
1185:
1.268 schwarze 1186: /* For less(1), use the tag file. */
1.239 schwarze 1187:
1.309 schwarze 1188: use_ofn = 1;
1.244 schwarze 1189: if ((cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1190: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1191: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1192: argv[argc++] = mandoc_strdup("-T");
1193: argv[argc++] = tag_files->tfn;
1.309 schwarze 1194: if (tag_files->tagname != NULL) {
1195: argv[argc++] = mandoc_strdup("-t");
1196: argv[argc++] = tag_files->tagname;
1197: use_ofn = 0;
1198: }
1.244 schwarze 1199: }
1.239 schwarze 1200: }
1.309 schwarze 1201: if (use_ofn)
1202: argv[argc++] = tag_files->ofn;
1.239 schwarze 1203: argv[argc] = NULL;
1204:
1.225 schwarze 1205: switch (pager_pid = fork()) {
1.183 schwarze 1206: case -1:
1.247 schwarze 1207: err((int)MANDOCLEVEL_SYSERR, "fork");
1.183 schwarze 1208: case 0:
1.224 schwarze 1209: break;
1210: default:
1.258 schwarze 1211: (void)setpgid(pager_pid, 0);
1.279 schwarze 1212: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1213: #if HAVE_PLEDGE
1.258 schwarze 1214: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.255 schwarze 1215: err((int)MANDOCLEVEL_SYSERR, "pledge");
1216: #endif
1.259 schwarze 1217: tag_files->pager_pid = pager_pid;
1.245 schwarze 1218: return pager_pid;
1.184 schwarze 1219: }
1220:
1.224 schwarze 1221: /* The child process becomes the pager. */
1.184 schwarze 1222:
1.247 schwarze 1223: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1224: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.244 schwarze 1225: close(tag_files->ofd);
1.303 schwarze 1226: assert(tag_files->tfd == -1);
1.265 schwarze 1227:
1228: /* Do not start the pager before controlling the terminal. */
1229:
1.279 schwarze 1230: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1231: nanosleep(&timeout, NULL);
1232:
1.184 schwarze 1233: execvp(argv[0], argv);
1.247 schwarze 1234: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.71 kristaps 1235: }
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