Annotation of mandoc/main.c, Revision 1.324
1.324 ! schwarze 1: /* $Id: main.c,v 1.323 2019/04/30 18:51:57 schwarze Exp $ */
1.1 kristaps 2: /*
1.183 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.317 schwarze 4: * Copyright (c) 2010-2012, 2014-2019 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 */
1.224 schwarze 24: #include <sys/wait.h>
1.58 kristaps 25:
1.1 kristaps 26: #include <assert.h>
1.185 schwarze 27: #include <ctype.h>
1.256 schwarze 28: #if HAVE_ERR
1.247 schwarze 29: #include <err.h>
1.256 schwarze 30: #endif
1.258 schwarze 31: #include <errno.h>
1.186 schwarze 32: #include <fcntl.h>
1.222 schwarze 33: #include <glob.h>
1.269 kristaps 34: #if HAVE_SANDBOX_INIT
35: #include <sandbox.h>
36: #endif
1.226 schwarze 37: #include <signal.h>
1.1 kristaps 38: #include <stdio.h>
1.45 kristaps 39: #include <stdint.h>
1.1 kristaps 40: #include <stdlib.h>
41: #include <string.h>
1.321 schwarze 42: #include <termios.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:
1.317 schwarze 151: mandoc_msg_setoutfile(stderr);
1.254 schwarze 152: if (strncmp(progname, "mandocdb", 8) == 0 ||
153: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 154: return mandocdb(argc, argv);
1.179 schwarze 155:
1.255 schwarze 156: #if HAVE_PLEDGE
1.284 schwarze 157: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
1.255 schwarze 158: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.269 kristaps 159: #endif
160:
161: #if HAVE_SANDBOX_INIT
162: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
163: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 164: #endif
165:
1.180 schwarze 166: /* Search options. */
167:
1.229 schwarze 168: memset(&conf, 0, sizeof(conf));
1.205 schwarze 169: conf_file = defpaths = NULL;
170: auxpaths = NULL;
1.180 schwarze 171:
172: memset(&search, 0, sizeof(struct mansearch));
173: search.outkey = "Nd";
1.282 schwarze 174: oarg = NULL;
1.180 schwarze 175:
1.254 schwarze 176: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 177: search.argmode = ARG_NAME;
1.254 schwarze 178: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 179: search.argmode = ARG_EXPR;
1.254 schwarze 180: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 181: search.argmode = ARG_WORD;
1.254 schwarze 182: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 183: search.argmode = ARG_NAME;
1.180 schwarze 184: else
185: search.argmode = ARG_FILE;
186:
187: /* Parser and formatter options. */
1.54 kristaps 188:
1.51 kristaps 189: memset(&curp, 0, sizeof(struct curparse));
1.201 schwarze 190: curp.outtype = OUTT_LOCALE;
1.230 schwarze 191: curp.outopts = &conf.output;
1.194 schwarze 192: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.19 kristaps 193:
1.244 schwarze 194: use_pager = 1;
195: tag_files = NULL;
1.180 schwarze 196: show_usage = 0;
1.181 schwarze 197: outmode = OUTMODE_DEF;
1.183 schwarze 198:
1.289 schwarze 199: while ((c = getopt(argc, argv,
200: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
201: if (c == 'i' && search.argmode == ARG_EXPR) {
202: optind--;
203: break;
204: }
1.1 kristaps 205: switch (c) {
1.181 schwarze 206: case 'a':
207: outmode = OUTMODE_ALL;
208: break;
1.180 schwarze 209: case 'C':
210: conf_file = optarg;
211: break;
1.183 schwarze 212: case 'c':
1.244 schwarze 213: use_pager = 0;
1.183 schwarze 214: break;
1.180 schwarze 215: case 'f':
216: search.argmode = ARG_WORD;
217: break;
1.190 schwarze 218: case 'h':
1.230 schwarze 219: conf.output.synopsisonly = 1;
1.244 schwarze 220: use_pager = 0;
1.190 schwarze 221: outmode = OUTMODE_ALL;
222: break;
1.173 schwarze 223: case 'I':
1.166 schwarze 224: if (strncmp(optarg, "os=", 3)) {
1.247 schwarze 225: warnx("-I %s: Bad argument", optarg);
1.245 schwarze 226: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 227: }
1.293 schwarze 228: if (curp.os_s != NULL) {
1.247 schwarze 229: warnx("-I %s: Duplicate argument", optarg);
1.245 schwarze 230: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 231: }
1.293 schwarze 232: curp.os_s = mandoc_strdup(optarg + 3);
1.181 schwarze 233: break;
1.194 schwarze 234: case 'K':
235: if ( ! koptions(&options, optarg))
1.245 schwarze 236: return (int)MANDOCLEVEL_BADARG;
1.194 schwarze 237: break;
1.180 schwarze 238: case 'k':
239: search.argmode = ARG_EXPR;
240: break;
1.188 schwarze 241: case 'l':
242: search.argmode = ARG_FILE;
243: outmode = OUTMODE_ALL;
244: break;
1.180 schwarze 245: case 'M':
246: defpaths = optarg;
247: break;
1.173 schwarze 248: case 'm':
1.180 schwarze 249: auxpaths = optarg;
1.10 kristaps 250: break;
1.173 schwarze 251: case 'O':
1.282 schwarze 252: oarg = optarg;
1.44 kristaps 253: break;
1.180 schwarze 254: case 'S':
255: search.arch = optarg;
256: break;
257: case 's':
258: search.sec = optarg;
259: break;
1.173 schwarze 260: case 'T':
1.60 kristaps 261: if ( ! toptions(&curp, optarg))
1.245 schwarze 262: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 263: break;
1.173 schwarze 264: case 'W':
1.103 schwarze 265: if ( ! woptions(&curp, optarg))
1.245 schwarze 266: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 267: break;
1.181 schwarze 268: case 'w':
269: outmode = OUTMODE_FLN;
270: break;
1.1 kristaps 271: default:
1.180 schwarze 272: show_usage = 1;
273: break;
1.1 kristaps 274: }
1.180 schwarze 275: }
276:
277: if (show_usage)
278: usage(search.argmode);
279:
1.185 schwarze 280: /* Postprocess options. */
281:
1.181 schwarze 282: if (outmode == OUTMODE_DEF) {
283: switch (search.argmode) {
284: case ARG_FILE:
285: outmode = OUTMODE_ALL;
1.244 schwarze 286: use_pager = 0;
1.181 schwarze 287: break;
288: case ARG_NAME:
289: outmode = OUTMODE_ONE;
290: break;
291: default:
292: outmode = OUTMODE_LST;
293: break;
1.282 schwarze 294: }
295: }
296:
297: if (oarg != NULL) {
298: if (outmode == OUTMODE_LST)
299: search.outkey = oarg;
300: else {
301: while (oarg != NULL) {
302: thisarg = oarg;
303: if (manconf_output(&conf.output,
304: strsep(&oarg, ","), 0) == 0)
305: continue;
306: warnx("-O %s: Bad argument", thisarg);
307: return (int)MANDOCLEVEL_BADARG;
308: }
1.181 schwarze 309: }
310: }
311:
1.315 schwarze 312: if (curp.outtype != OUTT_TREE || !curp.outopts->noval)
313: options |= MPARSE_VALIDATE;
314:
1.246 schwarze 315: if (outmode == OUTMODE_FLN ||
316: outmode == OUTMODE_LST ||
317: !isatty(STDOUT_FILENO))
318: use_pager = 0;
1.304 schwarze 319:
320: if (use_pager &&
321: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 322: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
323: ws.ws_col > 1) {
1.304 schwarze 324: if (conf.output.width == 0 && ws.ws_col < 79)
325: conf.output.width = ws.ws_col - 1;
326: if (conf.output.indent == 0 && ws.ws_col < 66)
327: conf.output.indent = 3;
328: }
1.246 schwarze 329:
1.255 schwarze 330: #if HAVE_PLEDGE
1.260 schwarze 331: if (!use_pager)
1.284 schwarze 332: if (pledge("stdio rpath", NULL) == -1)
1.260 schwarze 333: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.255 schwarze 334: #endif
335:
1.185 schwarze 336: /* Parse arguments. */
337:
1.219 schwarze 338: if (argc > 0) {
339: argc -= optind;
340: argv += optind;
341: }
1.186 schwarze 342: resp = NULL;
1.185 schwarze 343:
1.202 schwarze 344: /*
345: * Quirks for help(1)
346: * and for a man(1) section argument without -s.
347: */
348:
349: if (search.argmode == ARG_NAME) {
1.254 schwarze 350: if (*progname == 'h') {
1.202 schwarze 351: if (argc == 0) {
352: argv = help_argv;
353: argc = 1;
354: }
1.211 schwarze 355: } else if (argc > 1 &&
1.223 kristaps 356: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 357: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.324 ! schwarze 358: isalpha(uc[1]))) ||
1.207 schwarze 359: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 360: search.sec = (char *)uc;
1.202 schwarze 361: argv++;
362: argc--;
363: }
1.216 schwarze 364: if (search.arch == NULL)
365: search.arch = getenv("MACHINE");
1.223 kristaps 366: #ifdef MACHINE
1.216 schwarze 367: if (search.arch == NULL)
368: search.arch = MACHINE;
1.223 kristaps 369: #endif
1.185 schwarze 370: }
1.182 schwarze 371:
1.316 schwarze 372: /*
373: * Use the first argument for -O tag in addition to
374: * using it as a search term for man(1) or apropos(1).
375: */
376:
377: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
378: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
379: strchr(*argv, '=') : NULL;
380: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
381: }
382:
1.180 schwarze 383: /* man(1), whatis(1), apropos(1) */
384:
385: if (search.argmode != ARG_FILE) {
1.199 schwarze 386: if (search.argmode == ARG_NAME &&
387: outmode == OUTMODE_ONE)
388: search.firstmatch = 1;
1.182 schwarze 389:
390: /* Access the mandoc database. */
391:
1.229 schwarze 392: manconf_parse(&conf, conf_file, defpaths, auxpaths);
393: if ( ! mansearch(&search, &conf.manpath,
394: argc, argv, &res, &sz))
1.180 schwarze 395: usage(search.argmode);
1.213 schwarze 396:
1.305 schwarze 397: if (sz == 0 && search.argmode == ARG_NAME)
398: fs_search(&search, &conf.manpath,
399: argc, argv, &res, &sz);
400:
401: if (search.argmode == ARG_NAME) {
402: for (c = 0; c < argc; c++) {
403: if (strchr(argv[c], '/') == NULL)
404: continue;
405: if (access(argv[c], R_OK) == -1) {
406: warn("%s", argv[c]);
407: continue;
408: }
409: res = mandoc_reallocarray(res,
410: sz + 1, sizeof(*res));
411: res[sz].file = mandoc_strdup(argv[c]);
412: res[sz].names = NULL;
413: res[sz].output = NULL;
1.323 schwarze 414: res[sz].bits = 0;
1.305 schwarze 415: res[sz].ipath = SIZE_MAX;
416: res[sz].sec = 10;
417: res[sz].form = FORM_SRC;
418: sz++;
419: }
1.237 schwarze 420: }
1.187 schwarze 421:
422: if (sz == 0) {
1.305 schwarze 423: if (search.argmode != ARG_NAME)
424: warnx("nothing appropriate");
1.312 schwarze 425: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.187 schwarze 426: goto out;
427: }
1.182 schwarze 428:
429: /*
430: * For standard man(1) and -a output mode,
431: * prepare for copying filename pointers
432: * into the program parameter array.
433: */
434:
435: if (outmode == OUTMODE_ONE) {
436: argc = 1;
1.264 schwarze 437: best_prio = 20;
1.186 schwarze 438: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 439: argc = (int)sz;
440:
441: /* Iterate all matching manuals. */
442:
1.213 schwarze 443: resp = res;
1.181 schwarze 444: for (i = 0; i < sz; i++) {
445: if (outmode == OUTMODE_FLN)
446: puts(res[i].file);
1.182 schwarze 447: else if (outmode == OUTMODE_LST)
1.181 schwarze 448: printf("%s - %s\n", res[i].names,
449: res[i].output == NULL ? "" :
450: res[i].output);
1.186 schwarze 451: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 452: /* Search for the best section. */
1.264 schwarze 453: sec = res[i].file;
454: sec += strcspn(sec, "123456789");
455: if (sec[0] == '\0')
1.182 schwarze 456: continue;
1.264 schwarze 457: prio = sec_prios[sec[0] - '1'];
458: if (sec[1] != '/')
459: prio += 10;
1.182 schwarze 460: if (prio >= best_prio)
461: continue;
462: best_prio = prio;
1.186 schwarze 463: resp = res + i;
1.182 schwarze 464: }
1.181 schwarze 465: }
1.182 schwarze 466:
467: /*
468: * For man(1), -a and -i output mode, fall through
469: * to the main mandoc(1) code iterating files
470: * and running the parsers on each of them.
471: */
472:
473: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
474: goto out;
1.180 schwarze 475: }
476:
477: /* mandoc(1) */
478:
1.255 schwarze 479: #if HAVE_PLEDGE
1.260 schwarze 480: if (use_pager) {
481: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
482: err((int)MANDOCLEVEL_SYSERR, "pledge");
483: } else {
484: if (pledge("stdio rpath", NULL) == -1)
485: err((int)MANDOCLEVEL_SYSERR, "pledge");
486: }
1.255 schwarze 487: #endif
488:
1.286 schwarze 489: if (search.argmode == ARG_FILE)
490: moptions(&options, auxpaths);
1.241 schwarze 491:
1.249 schwarze 492: mchars_alloc();
1.312 schwarze 493: curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
1.154 kristaps 494:
1.219 schwarze 495: if (argc < 1) {
1.316 schwarze 496: if (use_pager) {
1.244 schwarze 497: tag_files = tag_init();
1.316 schwarze 498: tag_files->tagname = conf.output.tag;
499: }
1.312 schwarze 500: thisarg = "<stdin>";
501: mandoc_msg_setinfilename(thisarg);
502: parse(&curp, STDIN_FILENO, thisarg);
503: mandoc_msg_setinfilename(NULL);
1.212 schwarze 504: }
1.64 kristaps 505:
1.305 schwarze 506: /*
507: * Remember the original working directory, if possible.
508: * This will be needed if some names on the command line
509: * are page names and some are relative file names.
510: * Do not error out if the current directory is not
511: * readable: Maybe it won't be needed after all.
512: */
513: startdir = open(".", O_RDONLY | O_DIRECTORY);
514:
1.219 schwarze 515: while (argc > 0) {
1.305 schwarze 516:
517: /*
518: * Changing directories is not needed in ARG_FILE mode.
519: * Do it on a best-effort basis. Even in case of
520: * failure, some functionality may still work.
521: */
522: if (resp != NULL) {
523: if (resp->ipath != SIZE_MAX)
524: (void)chdir(conf.manpath.paths[resp->ipath]);
525: else if (startdir != -1)
526: (void)fchdir(startdir);
1.312 schwarze 527: thisarg = resp->file;
528: } else
529: thisarg = *argv;
1.305 schwarze 530:
1.312 schwarze 531: fd = mparse_open(curp.mp, thisarg);
1.212 schwarze 532: if (fd != -1) {
1.244 schwarze 533: if (use_pager) {
1.309 schwarze 534: use_pager = 0;
1.244 schwarze 535: tag_files = tag_init();
1.316 schwarze 536: tag_files->tagname = conf.output.tag;
1.244 schwarze 537: }
1.212 schwarze 538:
1.314 schwarze 539: mandoc_msg_setinfilename(thisarg);
1.312 schwarze 540: if (resp == NULL || resp->form == FORM_SRC)
541: parse(&curp, fd, thisarg);
1.305 schwarze 542: else
1.230 schwarze 543: passthrough(resp->file, fd,
544: conf.output.synopsisonly);
1.314 schwarze 545: mandoc_msg_setinfilename(NULL);
1.302 schwarze 546:
547: if (ferror(stdout)) {
548: if (tag_files != NULL) {
549: warn("%s", tag_files->ofn);
550: tag_unlink();
551: tag_files = NULL;
552: } else
553: warn("stdout");
1.312 schwarze 554: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.302 schwarze 555: break;
556: }
1.212 schwarze 557:
1.276 schwarze 558: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
559: if (curp.outdata == NULL)
560: outdata_alloc(&curp);
1.267 schwarze 561: terminal_sepline(curp.outdata);
1.276 schwarze 562: }
1.314 schwarze 563: } else
564: mandoc_msg(MANDOCERR_FILE, 0, 0,
1.318 schwarze 565: "%s: %s", thisarg, strerror(errno));
1.192 schwarze 566:
1.312 schwarze 567: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 568: break;
1.210 schwarze 569:
1.212 schwarze 570: if (resp != NULL)
571: resp++;
572: else
573: argv++;
574: if (--argc)
575: mparse_reset(curp.mp);
1.1 kristaps 576: }
1.305 schwarze 577: if (startdir != -1) {
578: (void)fchdir(startdir);
579: close(startdir);
580: }
1.1 kristaps 581:
1.252 schwarze 582: if (curp.outdata != NULL) {
583: switch (curp.outtype) {
584: case OUTT_HTML:
585: html_free(curp.outdata);
586: break;
587: case OUTT_UTF8:
588: case OUTT_LOCALE:
589: case OUTT_ASCII:
590: ascii_free(curp.outdata);
591: break;
592: case OUTT_PDF:
593: case OUTT_PS:
594: pspdf_free(curp.outdata);
595: break;
596: default:
597: break;
598: }
1.250 schwarze 599: }
1.294 schwarze 600: mandoc_xr_free();
1.195 schwarze 601: mparse_free(curp.mp);
1.249 schwarze 602: mchars_free();
1.182 schwarze 603:
604: out:
605: if (search.argmode != ARG_FILE) {
1.229 schwarze 606: manconf_free(&conf);
1.182 schwarze 607: mansearch_free(res, sz);
608: }
609:
1.293 schwarze 610: free(curp.os_s);
1.1 kristaps 611:
1.224 schwarze 612: /*
1.244 schwarze 613: * When using a pager, finish writing both temporary files,
614: * fork it, wait for the user to close it, and clean up.
1.224 schwarze 615: */
616:
1.244 schwarze 617: if (tag_files != NULL) {
1.225 schwarze 618: fclose(stdout);
1.239 schwarze 619: tag_write();
1.259 schwarze 620: man_pgid = getpgid(0);
621: tag_files->tcpgid = man_pgid == getpid() ?
622: getpgid(getppid()) : man_pgid;
623: pager_pid = 0;
624: signum = SIGSTOP;
1.258 schwarze 625: for (;;) {
1.259 schwarze 626:
627: /* Stop here until moved to the foreground. */
628:
1.279 schwarze 629: tc_pgid = tcgetpgrp(tag_files->ofd);
1.259 schwarze 630: if (tc_pgid != man_pgid) {
631: if (tc_pgid == pager_pid) {
1.279 schwarze 632: (void)tcsetpgrp(tag_files->ofd,
1.259 schwarze 633: man_pgid);
634: if (signum == SIGTTIN)
635: continue;
636: } else
637: tag_files->tcpgid = tc_pgid;
638: kill(0, signum);
639: continue;
640: }
641:
642: /* Once in the foreground, activate the pager. */
643:
644: if (pager_pid) {
1.279 schwarze 645: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.259 schwarze 646: kill(pager_pid, SIGCONT);
647: } else
648: pager_pid = spawn_pager(tag_files);
649:
650: /* Wait for the pager to stop or exit. */
651:
652: while ((pid = waitpid(pager_pid, &status,
653: WUNTRACED)) == -1 && errno == EINTR)
654: continue;
655:
656: if (pid == -1) {
1.258 schwarze 657: warn("wait");
1.312 schwarze 658: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.258 schwarze 659: break;
660: }
661: if (!WIFSTOPPED(status))
662: break;
663:
1.259 schwarze 664: signum = WSTOPSIG(status);
1.258 schwarze 665: }
1.239 schwarze 666: tag_unlink();
1.225 schwarze 667: }
1.312 schwarze 668: return (int)mandoc_msg_getrc();
1.1 kristaps 669: }
670:
1.55 kristaps 671: static void
1.180 schwarze 672: usage(enum argmode argmode)
1.1 kristaps 673: {
674:
1.180 schwarze 675: switch (argmode) {
676: case ARG_FILE:
1.287 schwarze 677: fputs("usage: mandoc [-ac] [-I os=name] "
678: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 679: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 680: break;
681: case ARG_NAME:
1.287 schwarze 682: fputs("usage: man [-acfhklw] [-C file] [-M path] "
683: "[-m path] [-S subsection]\n"
684: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 685: break;
686: case ARG_WORD:
1.287 schwarze 687: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 688: "[-M path] [-m path] [-O outkey] [-S arch]\n"
689: "\t [-s section] name ...\n", stderr);
1.180 schwarze 690: break;
691: case ARG_EXPR:
1.287 schwarze 692: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 693: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 694: "\t [-s section] expression ...\n", stderr);
695: break;
696: }
1.105 kristaps 697: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 698: }
1.213 schwarze 699:
700: static int
701: fs_lookup(const struct manpaths *paths, size_t ipath,
702: const char *sec, const char *arch, const char *name,
703: struct manpage **res, size_t *ressz)
704: {
1.222 schwarze 705: glob_t globinfo;
1.213 schwarze 706: struct manpage *page;
707: char *file;
1.274 schwarze 708: int globres;
709: enum form form;
1.213 schwarze 710:
1.222 schwarze 711: form = FORM_SRC;
1.213 schwarze 712: mandoc_asprintf(&file, "%s/man%s/%s.%s",
713: paths->paths[ipath], sec, name, sec);
1.222 schwarze 714: if (access(file, R_OK) != -1)
1.213 schwarze 715: goto found;
716: free(file);
717:
718: mandoc_asprintf(&file, "%s/cat%s/%s.0",
719: paths->paths[ipath], sec, name);
720: if (access(file, R_OK) != -1) {
721: form = FORM_CAT;
722: goto found;
723: }
724: free(file);
725:
726: if (arch != NULL) {
727: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
728: paths->paths[ipath], sec, arch, name, sec);
1.222 schwarze 729: if (access(file, R_OK) != -1)
1.213 schwarze 730: goto found;
731: free(file);
732: }
1.222 schwarze 733:
1.240 schwarze 734: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 735: paths->paths[ipath], sec, name);
736: globres = glob(file, 0, NULL, &globinfo);
737: if (globres != 0 && globres != GLOB_NOMATCH)
1.247 schwarze 738: warn("%s: glob", file);
1.222 schwarze 739: free(file);
740: if (globres == 0)
741: file = mandoc_strdup(*globinfo.gl_pathv);
742: globfree(&globinfo);
1.296 schwarze 743: if (globres == 0)
744: goto found;
745: if (res != NULL || ipath + 1 != paths->sz)
1.245 schwarze 746: return 0;
1.213 schwarze 747:
1.296 schwarze 748: mandoc_asprintf(&file, "%s.%s", name, sec);
749: globres = access(file, R_OK);
750: free(file);
751: return globres != -1;
752:
1.213 schwarze 753: found:
1.266 schwarze 754: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
755: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 756: if (res == NULL) {
757: free(file);
1.295 schwarze 758: return 1;
1.296 schwarze 759: }
1.213 schwarze 760: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
761: page = *res + (*ressz - 1);
762: page->file = file;
763: page->names = NULL;
764: page->output = NULL;
1.323 schwarze 765: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 766: page->ipath = ipath;
767: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
768: page->form = form;
1.245 schwarze 769: return 1;
1.213 schwarze 770: }
771:
1.295 schwarze 772: static int
1.213 schwarze 773: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
774: int argc, char **argv, struct manpage **res, size_t *ressz)
775: {
776: const char *const sections[] =
1.264 schwarze 777: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 778: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
779:
780: size_t ipath, isec, lastsz;
781:
782: assert(cfg->argmode == ARG_NAME);
783:
1.295 schwarze 784: if (res != NULL)
785: *res = NULL;
1.213 schwarze 786: *ressz = lastsz = 0;
787: while (argc) {
788: for (ipath = 0; ipath < paths->sz; ipath++) {
789: if (cfg->sec != NULL) {
790: if (fs_lookup(paths, ipath, cfg->sec,
791: cfg->arch, *argv, res, ressz) &&
792: cfg->firstmatch)
1.295 schwarze 793: return 1;
1.213 schwarze 794: } else for (isec = 0; isec < nsec; isec++)
795: if (fs_lookup(paths, ipath, sections[isec],
796: cfg->arch, *argv, res, ressz) &&
797: cfg->firstmatch)
1.295 schwarze 798: return 1;
1.213 schwarze 799: }
1.305 schwarze 800: if (res != NULL && *ressz == lastsz &&
1.307 schwarze 801: strchr(*argv, '/') == NULL) {
1.320 schwarze 802: if (cfg->arch != NULL &&
803: arch_valid(cfg->arch, OSENUM) == 0)
804: warnx("Unknown architecture \"%s\".",
805: cfg->arch);
806: else if (cfg->sec == NULL)
1.307 schwarze 807: warnx("No entry for %s in the manual.",
808: *argv);
809: else
810: warnx("No entry for %s in section %s "
811: "of the manual.", *argv, cfg->sec);
812: }
1.213 schwarze 813: lastsz = *ressz;
814: argv++;
815: argc--;
816: }
1.295 schwarze 817: return 0;
1.213 schwarze 818: }
1.68 joerg 819:
1.64 kristaps 820: static void
1.227 schwarze 821: parse(struct curparse *curp, int fd, const char *file)
1.1 kristaps 822: {
1.315 schwarze 823: struct roff_meta *meta;
1.112 kristaps 824:
1.154 kristaps 825: /* Begin by parsing the file itself. */
1.112 kristaps 826:
1.154 kristaps 827: assert(file);
1.263 schwarze 828: assert(fd >= 0);
1.112 kristaps 829:
1.312 schwarze 830: mparse_readfd(curp->mp, fd, file);
1.261 schwarze 831: if (fd != STDIN_FILENO)
832: close(fd);
1.112 kristaps 833:
1.1 kristaps 834: /*
1.154 kristaps 835: * With -Wstop and warnings or errors of at least the requested
836: * level, do not produce output.
1.1 kristaps 837: */
838:
1.312 schwarze 839: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 840: return;
1.111 kristaps 841:
1.276 schwarze 842: if (curp->outdata == NULL)
843: outdata_alloc(curp);
1.319 schwarze 844: else if (curp->outtype == OUTT_HTML)
845: html_reset(curp);
1.111 kristaps 846:
1.315 schwarze 847: mandoc_xr_reset();
848: meta = mparse_result(curp->mp);
1.250 schwarze 849:
850: /* Execute the out device, if it exists. */
851:
1.315 schwarze 852: if (meta->macroset == MACROSET_MDOC) {
1.111 kristaps 853: switch (curp->outtype) {
1.173 schwarze 854: case OUTT_HTML:
1.315 schwarze 855: html_mdoc(curp->outdata, meta);
1.111 kristaps 856: break;
1.173 schwarze 857: case OUTT_TREE:
1.315 schwarze 858: tree_mdoc(curp->outdata, meta);
1.111 kristaps 859: break;
1.173 schwarze 860: case OUTT_MAN:
1.315 schwarze 861: man_mdoc(curp->outdata, meta);
1.164 schwarze 862: break;
1.173 schwarze 863: case OUTT_PDF:
864: case OUTT_ASCII:
865: case OUTT_UTF8:
866: case OUTT_LOCALE:
867: case OUTT_PS:
1.315 schwarze 868: terminal_mdoc(curp->outdata, meta);
1.250 schwarze 869: break;
1.285 schwarze 870: case OUTT_MARKDOWN:
1.315 schwarze 871: markdown_mdoc(curp->outdata, meta);
1.285 schwarze 872: break;
1.250 schwarze 873: default:
874: break;
875: }
876: }
1.315 schwarze 877: if (meta->macroset == MACROSET_MAN) {
1.250 schwarze 878: switch (curp->outtype) {
879: case OUTT_HTML:
1.315 schwarze 880: html_man(curp->outdata, meta);
1.250 schwarze 881: break;
882: case OUTT_TREE:
1.315 schwarze 883: tree_man(curp->outdata, meta);
1.250 schwarze 884: break;
885: case OUTT_MAN:
1.308 schwarze 886: mparse_copy(curp->mp);
1.250 schwarze 887: break;
888: case OUTT_PDF:
889: case OUTT_ASCII:
890: case OUTT_UTF8:
891: case OUTT_LOCALE:
892: case OUTT_PS:
1.315 schwarze 893: terminal_man(curp->outdata, meta);
1.111 kristaps 894: break;
895: default:
896: break;
897: }
1.276 schwarze 898: }
1.312 schwarze 899: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
900: check_xr();
1.294 schwarze 901: }
902:
903: static void
1.312 schwarze 904: check_xr(void)
1.294 schwarze 905: {
906: static struct manpaths paths;
907: struct mansearch search;
908: struct mandoc_xr *xr;
909: size_t sz;
910:
911: if (paths.sz == 0)
912: manpath_base(&paths);
913:
914: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 915: if (xr->line == -1)
916: continue;
1.294 schwarze 917: search.arch = NULL;
918: search.sec = xr->sec;
919: search.outkey = NULL;
920: search.argmode = ARG_NAME;
921: search.firstmatch = 1;
922: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 923: continue;
924: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.294 schwarze 925: continue;
1.298 schwarze 926: if (xr->count == 1)
1.313 schwarze 927: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
928: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 929: else
1.313 schwarze 930: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
931: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 932: xr->name, xr->sec, xr->count);
1.294 schwarze 933: }
1.276 schwarze 934: }
935:
936: static void
937: outdata_alloc(struct curparse *curp)
938: {
939: switch (curp->outtype) {
940: case OUTT_HTML:
941: curp->outdata = html_alloc(curp->outopts);
942: break;
943: case OUTT_UTF8:
944: curp->outdata = utf8_alloc(curp->outopts);
945: break;
946: case OUTT_LOCALE:
947: curp->outdata = locale_alloc(curp->outopts);
948: break;
949: case OUTT_ASCII:
950: curp->outdata = ascii_alloc(curp->outopts);
951: break;
952: case OUTT_PDF:
953: curp->outdata = pdf_alloc(curp->outopts);
954: break;
955: case OUTT_PS:
956: curp->outdata = ps_alloc(curp->outopts);
957: break;
958: default:
959: break;
1.111 kristaps 960: }
1.186 schwarze 961: }
962:
1.227 schwarze 963: static void
1.197 schwarze 964: passthrough(const char *file, int fd, int synopsis_only)
1.186 schwarze 965: {
1.197 schwarze 966: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
967: const char synr[] = "SYNOPSIS";
968:
969: FILE *stream;
1.186 schwarze 970: const char *syscall;
1.257 schwarze 971: char *line, *cp;
972: size_t linesz;
1.277 schwarze 973: ssize_t len, written;
1.197 schwarze 974: int print;
1.210 schwarze 975:
1.257 schwarze 976: line = NULL;
977: linesz = 0;
1.197 schwarze 978:
1.277 schwarze 979: if (fflush(stdout) == EOF) {
980: syscall = "fflush";
981: goto fail;
982: }
983:
1.197 schwarze 984: if ((stream = fdopen(fd, "r")) == NULL) {
985: close(fd);
986: syscall = "fdopen";
987: goto fail;
988: }
1.186 schwarze 989:
1.197 schwarze 990: print = 0;
1.277 schwarze 991: while ((len = getline(&line, &linesz, stream)) != -1) {
1.257 schwarze 992: cp = line;
1.197 schwarze 993: if (synopsis_only) {
994: if (print) {
1.257 schwarze 995: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 996: goto done;
1.277 schwarze 997: while (isspace((unsigned char)*cp)) {
1.257 schwarze 998: cp++;
1.277 schwarze 999: len--;
1000: }
1.197 schwarze 1001: } else {
1.257 schwarze 1002: if (strcmp(cp, synb) == 0 ||
1003: strcmp(cp, synr) == 0)
1.197 schwarze 1004: print = 1;
1005: continue;
1006: }
1007: }
1.277 schwarze 1008: for (; len > 0; len -= written) {
1009: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
1010: continue;
1.257 schwarze 1011: fclose(stream);
1.277 schwarze 1012: syscall = "write";
1.257 schwarze 1013: goto fail;
1014: }
1.197 schwarze 1015: }
1.186 schwarze 1016:
1.197 schwarze 1017: if (ferror(stream)) {
1018: fclose(stream);
1.257 schwarze 1019: syscall = "getline";
1.197 schwarze 1020: goto fail;
1021: }
1.193 schwarze 1022:
1.197 schwarze 1023: done:
1.257 schwarze 1024: free(line);
1.197 schwarze 1025: fclose(stream);
1.227 schwarze 1026: return;
1.186 schwarze 1027:
1028: fail:
1.257 schwarze 1029: free(line);
1.247 schwarze 1030: warn("%s: SYSERR: %s", file, syscall);
1.312 schwarze 1031: mandoc_msg_setrc(MANDOCLEVEL_SYSERR);
1.194 schwarze 1032: }
1033:
1034: static int
1035: koptions(int *options, char *arg)
1036: {
1037:
1038: if ( ! strcmp(arg, "utf-8")) {
1039: *options |= MPARSE_UTF8;
1040: *options &= ~MPARSE_LATIN1;
1041: } else if ( ! strcmp(arg, "iso-8859-1")) {
1042: *options |= MPARSE_LATIN1;
1043: *options &= ~MPARSE_UTF8;
1044: } else if ( ! strcmp(arg, "us-ascii")) {
1045: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
1046: } else {
1.247 schwarze 1047: warnx("-K %s: Bad argument", arg);
1.245 schwarze 1048: return 0;
1.194 schwarze 1049: }
1.245 schwarze 1050: return 1;
1.10 kristaps 1051: }
1052:
1.286 schwarze 1053: static void
1.170 schwarze 1054: moptions(int *options, char *arg)
1.10 kristaps 1055: {
1056:
1.180 schwarze 1057: if (arg == NULL)
1.286 schwarze 1058: return;
1059: if (strcmp(arg, "doc") == 0)
1.170 schwarze 1060: *options |= MPARSE_MDOC;
1.286 schwarze 1061: else if (strcmp(arg, "an") == 0)
1.170 schwarze 1062: *options |= MPARSE_MAN;
1.1 kristaps 1063: }
1064:
1065: static int
1.60 kristaps 1066: toptions(struct curparse *curp, char *arg)
1.1 kristaps 1067: {
1068:
1069: if (0 == strcmp(arg, "ascii"))
1.60 kristaps 1070: curp->outtype = OUTT_ASCII;
1071: else if (0 == strcmp(arg, "lint")) {
1072: curp->outtype = OUTT_LINT;
1.312 schwarze 1073: mandoc_msg_setoutfile(stdout);
1074: mandoc_msg_setmin(MANDOCERR_BASE);
1.154 kristaps 1075: } else if (0 == strcmp(arg, "tree"))
1.60 kristaps 1076: curp->outtype = OUTT_TREE;
1.164 schwarze 1077: else if (0 == strcmp(arg, "man"))
1078: curp->outtype = OUTT_MAN;
1.43 kristaps 1079: else if (0 == strcmp(arg, "html"))
1.60 kristaps 1080: curp->outtype = OUTT_HTML;
1.285 schwarze 1081: else if (0 == strcmp(arg, "markdown"))
1082: curp->outtype = OUTT_MARKDOWN;
1.163 kristaps 1083: else if (0 == strcmp(arg, "utf8"))
1084: curp->outtype = OUTT_UTF8;
1.162 kristaps 1085: else if (0 == strcmp(arg, "locale"))
1086: curp->outtype = OUTT_LOCALE;
1.85 kristaps 1087: else if (0 == strcmp(arg, "ps"))
1088: curp->outtype = OUTT_PS;
1.100 kristaps 1089: else if (0 == strcmp(arg, "pdf"))
1090: curp->outtype = OUTT_PDF;
1.1 kristaps 1091: else {
1.247 schwarze 1092: warnx("-T %s: Bad argument", arg);
1.245 schwarze 1093: return 0;
1.1 kristaps 1094: }
1095:
1.245 schwarze 1096: return 1;
1.1 kristaps 1097: }
1098:
1099: static int
1.103 schwarze 1100: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1101: {
1.34 kristaps 1102: char *v, *o;
1.293 schwarze 1103: const char *toks[11];
1.1 kristaps 1104:
1.103 schwarze 1105: toks[0] = "stop";
1106: toks[1] = "all";
1.293 schwarze 1107: toks[2] = "base";
1108: toks[3] = "style";
1109: toks[4] = "warning";
1110: toks[5] = "error";
1111: toks[6] = "unsupp";
1112: toks[7] = "fatal";
1113: toks[8] = "openbsd";
1114: toks[9] = "netbsd";
1115: toks[10] = NULL;
1.1 kristaps 1116:
1.34 kristaps 1117: while (*arg) {
1118: o = arg;
1.272 schwarze 1119: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1120: case 0:
1.103 schwarze 1121: curp->wstop = 1;
1.1 kristaps 1122: break;
1.173 schwarze 1123: case 1:
1124: case 2:
1.312 schwarze 1125: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1126: break;
1127: case 3:
1.312 schwarze 1128: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1129: break;
1.290 schwarze 1130: case 4:
1.312 schwarze 1131: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1132: break;
1.290 schwarze 1133: case 5:
1.312 schwarze 1134: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1135: break;
1.290 schwarze 1136: case 6:
1.312 schwarze 1137: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1138: break;
1139: case 7:
1.312 schwarze 1140: mandoc_msg_setmin(MANDOCERR_MAX);
1.293 schwarze 1141: break;
1142: case 8:
1.312 schwarze 1143: mandoc_msg_setmin(MANDOCERR_BASE);
1.293 schwarze 1144: curp->os_e = MANDOC_OS_OPENBSD;
1145: break;
1146: case 9:
1.312 schwarze 1147: mandoc_msg_setmin(MANDOCERR_BASE);
1.293 schwarze 1148: curp->os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1149: break;
1.1 kristaps 1150: default:
1.247 schwarze 1151: warnx("-W %s: Bad argument", o);
1.245 schwarze 1152: return 0;
1.1 kristaps 1153: }
1.34 kristaps 1154: }
1.245 schwarze 1155: return 1;
1.183 schwarze 1156: }
1157:
1.225 schwarze 1158: static pid_t
1.244 schwarze 1159: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1160: {
1.265 schwarze 1161: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1162: #define MAX_PAGER_ARGS 16
1163: char *argv[MAX_PAGER_ARGS];
1164: const char *pager;
1165: char *cp;
1.322 schwarze 1166: #if HAVE_LESS_T
1.239 schwarze 1167: size_t cmdlen;
1.322 schwarze 1168: #endif
1.309 schwarze 1169: int argc, use_ofn;
1.225 schwarze 1170: pid_t pager_pid;
1.183 schwarze 1171:
1.239 schwarze 1172: pager = getenv("MANPAGER");
1173: if (pager == NULL || *pager == '\0')
1174: pager = getenv("PAGER");
1175: if (pager == NULL || *pager == '\0')
1176: pager = "more -s";
1177: cp = mandoc_strdup(pager);
1178:
1179: /*
1180: * Parse the pager command into words.
1181: * Intentionally do not do anything fancy here.
1182: */
1183:
1184: argc = 0;
1.309 schwarze 1185: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1186: argv[argc++] = cp;
1187: cp = strchr(cp, ' ');
1188: if (cp == NULL)
1189: break;
1190: *cp++ = '\0';
1191: while (*cp == ' ')
1192: cp++;
1193: if (*cp == '\0')
1194: break;
1195: }
1196:
1.268 schwarze 1197: /* For less(1), use the tag file. */
1.239 schwarze 1198:
1.309 schwarze 1199: use_ofn = 1;
1.322 schwarze 1200: #if HAVE_LESS_T
1.244 schwarze 1201: if ((cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1202: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1203: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1204: argv[argc++] = mandoc_strdup("-T");
1205: argv[argc++] = tag_files->tfn;
1.309 schwarze 1206: if (tag_files->tagname != NULL) {
1207: argv[argc++] = mandoc_strdup("-t");
1208: argv[argc++] = tag_files->tagname;
1209: use_ofn = 0;
1210: }
1.244 schwarze 1211: }
1.239 schwarze 1212: }
1.322 schwarze 1213: #endif
1.309 schwarze 1214: if (use_ofn)
1215: argv[argc++] = tag_files->ofn;
1.239 schwarze 1216: argv[argc] = NULL;
1217:
1.225 schwarze 1218: switch (pager_pid = fork()) {
1.183 schwarze 1219: case -1:
1.247 schwarze 1220: err((int)MANDOCLEVEL_SYSERR, "fork");
1.183 schwarze 1221: case 0:
1.224 schwarze 1222: break;
1223: default:
1.258 schwarze 1224: (void)setpgid(pager_pid, 0);
1.279 schwarze 1225: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1226: #if HAVE_PLEDGE
1.258 schwarze 1227: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.255 schwarze 1228: err((int)MANDOCLEVEL_SYSERR, "pledge");
1229: #endif
1.259 schwarze 1230: tag_files->pager_pid = pager_pid;
1.245 schwarze 1231: return pager_pid;
1.184 schwarze 1232: }
1233:
1.224 schwarze 1234: /* The child process becomes the pager. */
1.184 schwarze 1235:
1.247 schwarze 1236: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1237: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.244 schwarze 1238: close(tag_files->ofd);
1.303 schwarze 1239: assert(tag_files->tfd == -1);
1.265 schwarze 1240:
1241: /* Do not start the pager before controlling the terminal. */
1242:
1.279 schwarze 1243: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1244: nanosleep(&timeout, NULL);
1245:
1.184 schwarze 1246: execvp(argv[0], argv);
1.247 schwarze 1247: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.71 kristaps 1248: }
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