Annotation of src/usr.bin/mandoc/main.c, Revision 1.231
1.231 ! schwarze 1: /* $OpenBSD: main.c,v 1.230 2019/07/03 16:33:06 espie Exp $ */
1.1 kristaps 2: /*
1.95 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.220 schwarze 4: * Copyright (c) 2010-2012, 2014-2019 Ingo Schwarze <schwarze@openbsd.org>
1.86 schwarze 5: * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
1.1 kristaps 6: *
7: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 10: *
1.134 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.134 schwarze 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 18: */
19:
1.95 schwarze 20: #include <sys/types.h>
1.207 schwarze 21: #include <sys/ioctl.h>
1.122 schwarze 22: #include <sys/param.h> /* MACHINE */
1.228 schwarze 23: #include <sys/stat.h>
1.129 schwarze 24: #include <sys/wait.h>
1.95 schwarze 25:
1.1 kristaps 26: #include <assert.h>
1.95 schwarze 27: #include <ctype.h>
1.152 schwarze 28: #include <err.h>
1.165 schwarze 29: #include <errno.h>
1.95 schwarze 30: #include <fcntl.h>
1.127 schwarze 31: #include <glob.h>
1.131 schwarze 32: #include <signal.h>
1.1 kristaps 33: #include <stdio.h>
1.17 schwarze 34: #include <stdint.h>
1.1 kristaps 35: #include <stdlib.h>
36: #include <string.h>
1.224 schwarze 37: #include <termios.h>
1.172 schwarze 38: #include <time.h>
1.1 kristaps 39: #include <unistd.h>
40:
1.136 schwarze 41: #include "mandoc_aux.h"
1.30 schwarze 42: #include "mandoc.h"
1.197 schwarze 43: #include "mandoc_xr.h"
1.136 schwarze 44: #include "roff.h"
1.1 kristaps 45: #include "mdoc.h"
46: #include "man.h"
1.214 schwarze 47: #include "mandoc_parse.h"
1.144 schwarze 48: #include "tag.h"
1.136 schwarze 49: #include "main.h"
1.134 schwarze 50: #include "manconf.h"
1.95 schwarze 51: #include "mansearch.h"
52:
53: enum outmode {
54: OUTMODE_DEF = 0,
55: OUTMODE_FLN,
56: OUTMODE_LST,
57: OUTMODE_ALL,
58: OUTMODE_ONE
59: };
1.1 kristaps 60:
61: enum outt {
1.76 schwarze 62: OUTT_ASCII = 0, /* -Tascii */
1.77 schwarze 63: OUTT_LOCALE, /* -Tlocale */
64: OUTT_UTF8, /* -Tutf8 */
1.76 schwarze 65: OUTT_TREE, /* -Ttree */
1.78 schwarze 66: OUTT_MAN, /* -Tman */
1.76 schwarze 67: OUTT_HTML, /* -Thtml */
1.188 schwarze 68: OUTT_MARKDOWN, /* -Tmarkdown */
1.76 schwarze 69: OUTT_LINT, /* -Tlint */
70: OUTT_PS, /* -Tps */
71: OUTT_PDF /* -Tpdf */
1.1 kristaps 72: };
73:
74: struct curparse {
1.76 schwarze 75: struct mparse *mp;
1.196 schwarze 76: struct manoutput *outopts; /* output options */
77: void *outdata; /* data for output */
78: char *os_s; /* operating system for display */
1.75 schwarze 79: int wstop; /* stop after a file with a warning */
1.196 schwarze 80: enum mandoc_os os_e; /* check base system conventions */
1.90 schwarze 81: enum outt outtype; /* which output to use */
1.33 schwarze 82: };
1.174 schwarze 83:
84:
85: int mandocdb(int, char *[]);
1.33 schwarze 86:
1.215 schwarze 87: static void check_xr(void);
1.119 schwarze 88: static int fs_lookup(const struct manpaths *,
89: size_t ipath, const char *,
90: const char *, const char *,
91: struct manpage **, size_t *);
1.198 schwarze 92: static int fs_search(const struct mansearch *,
1.119 schwarze 93: const struct manpaths *, int, char**,
94: struct manpage **, size_t *);
1.179 schwarze 95: static void outdata_alloc(struct curparse *);
1.132 schwarze 96: static void parse(struct curparse *, int, const char *);
1.231 ! schwarze 97: static void passthrough(int, int);
1.149 schwarze 98: static pid_t spawn_pager(struct tag_files *);
1.184 schwarze 99: static void usage(enum argmode) __attribute__((__noreturn__));
1.45 schwarze 100: static int woptions(struct curparse *, char *);
1.1 kristaps 101:
1.95 schwarze 102: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.110 schwarze 103: static char help_arg[] = "help";
104: static char *help_argv[] = {help_arg, NULL};
1.1 kristaps 105:
1.90 schwarze 106:
1.1 kristaps 107: int
108: main(int argc, char *argv[])
109: {
1.134 schwarze 110: struct manconf conf;
1.186 schwarze 111: struct mansearch search;
1.1 kristaps 112: struct curparse curp;
1.207 schwarze 113: struct winsize ws;
1.149 schwarze 114: struct tag_files *tag_files;
1.186 schwarze 115: struct manpage *res, *resp;
116: const char *progname, *sec, *thisarg;
117: char *conf_file, *defpaths, *auxpaths;
1.219 schwarze 118: char *oarg, *tagarg;
1.113 schwarze 119: unsigned char *uc;
1.227 schwarze 120: size_t i, sz, ssz;
1.135 schwarze 121: int prio, best_prio;
1.95 schwarze 122: enum outmode outmode;
1.208 schwarze 123: int fd, startdir;
1.95 schwarze 124: int show_usage;
1.87 schwarze 125: int options;
1.149 schwarze 126: int use_pager;
1.166 schwarze 127: int status, signum;
1.95 schwarze 128: int c;
1.166 schwarze 129: pid_t pager_pid, tc_pgid, man_pgid, pid;
1.1 kristaps 130:
1.162 schwarze 131: progname = getprogname();
1.220 schwarze 132: mandoc_msg_setoutfile(stderr);
1.162 schwarze 133: if (strncmp(progname, "mandocdb", 8) == 0 ||
134: strncmp(progname, "makewhatis", 10) == 0)
1.150 schwarze 135: return mandocdb(argc, argv);
1.19 schwarze 136:
1.231 ! schwarze 137: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
! 138: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
! 139: return mandoc_msg_getrc();
! 140: }
1.154 schwarze 141:
1.95 schwarze 142: /* Search options. */
143:
1.134 schwarze 144: memset(&conf, 0, sizeof(conf));
1.111 schwarze 145: conf_file = defpaths = NULL;
146: auxpaths = NULL;
1.95 schwarze 147:
148: memset(&search, 0, sizeof(struct mansearch));
149: search.outkey = "Nd";
1.186 schwarze 150: oarg = NULL;
1.95 schwarze 151:
1.162 schwarze 152: if (strcmp(progname, "man") == 0)
1.95 schwarze 153: search.argmode = ARG_NAME;
1.162 schwarze 154: else if (strncmp(progname, "apropos", 7) == 0)
1.95 schwarze 155: search.argmode = ARG_EXPR;
1.162 schwarze 156: else if (strncmp(progname, "whatis", 6) == 0)
1.95 schwarze 157: search.argmode = ARG_WORD;
1.162 schwarze 158: else if (strncmp(progname, "help", 4) == 0)
1.110 schwarze 159: search.argmode = ARG_NAME;
1.95 schwarze 160: else
161: search.argmode = ARG_FILE;
162:
163: /* Parser and formatter options. */
164:
1.19 schwarze 165: memset(&curp, 0, sizeof(struct curparse));
1.109 schwarze 166: curp.outtype = OUTT_LOCALE;
1.135 schwarze 167: curp.outopts = &conf.output;
1.103 schwarze 168: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.1 kristaps 169:
1.149 schwarze 170: use_pager = 1;
171: tag_files = NULL;
1.95 schwarze 172: show_usage = 0;
173: outmode = OUTMODE_DEF;
174:
1.192 schwarze 175: while ((c = getopt(argc, argv,
176: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
177: if (c == 'i' && search.argmode == ARG_EXPR) {
178: optind--;
179: break;
180: }
1.1 kristaps 181: switch (c) {
1.95 schwarze 182: case 'a':
183: outmode = OUTMODE_ALL;
184: break;
185: case 'C':
186: conf_file = optarg;
187: break;
188: case 'c':
1.149 schwarze 189: use_pager = 0;
1.95 schwarze 190: break;
191: case 'f':
192: search.argmode = ARG_WORD;
193: break;
1.98 schwarze 194: case 'h':
1.135 schwarze 195: conf.output.synopsisonly = 1;
1.149 schwarze 196: use_pager = 0;
1.98 schwarze 197: outmode = OUTMODE_ALL;
198: break;
1.90 schwarze 199: case 'I':
1.231 ! schwarze 200: if (strncmp(optarg, "os=", 3) != 0) {
! 201: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
! 202: "-I %s", optarg);
! 203: return mandoc_msg_getrc();
1.83 schwarze 204: }
1.196 schwarze 205: if (curp.os_s != NULL) {
1.231 ! schwarze 206: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
! 207: "-I %s", optarg);
! 208: return mandoc_msg_getrc();
1.83 schwarze 209: }
1.196 schwarze 210: curp.os_s = mandoc_strdup(optarg + 3);
1.95 schwarze 211: break;
1.103 schwarze 212: case 'K':
1.231 ! schwarze 213: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
! 214: if (strcmp(optarg, "utf-8") == 0)
! 215: options |= MPARSE_UTF8;
! 216: else if (strcmp(optarg, "iso-8859-1") == 0)
! 217: options |= MPARSE_LATIN1;
! 218: else if (strcmp(optarg, "us-ascii") != 0) {
! 219: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
! 220: "-K %s", optarg);
! 221: return mandoc_msg_getrc();
! 222: }
1.103 schwarze 223: break;
1.95 schwarze 224: case 'k':
225: search.argmode = ARG_EXPR;
226: break;
1.96 schwarze 227: case 'l':
228: search.argmode = ARG_FILE;
229: outmode = OUTMODE_ALL;
230: break;
1.95 schwarze 231: case 'M':
232: defpaths = optarg;
233: break;
1.90 schwarze 234: case 'm':
1.95 schwarze 235: auxpaths = optarg;
1.1 kristaps 236: break;
1.90 schwarze 237: case 'O':
1.186 schwarze 238: oarg = optarg;
1.17 schwarze 239: break;
1.95 schwarze 240: case 'S':
241: search.arch = optarg;
242: break;
243: case 's':
244: search.sec = optarg;
245: break;
1.90 schwarze 246: case 'T':
1.231 ! schwarze 247: if (strcmp(optarg, "ascii") == 0)
! 248: curp.outtype = OUTT_ASCII;
! 249: else if (strcmp(optarg, "lint") == 0) {
! 250: curp.outtype = OUTT_LINT;
! 251: mandoc_msg_setoutfile(stdout);
! 252: mandoc_msg_setmin(MANDOCERR_BASE);
! 253: } else if (strcmp(optarg, "tree") == 0)
! 254: curp.outtype = OUTT_TREE;
! 255: else if (strcmp(optarg, "man") == 0)
! 256: curp.outtype = OUTT_MAN;
! 257: else if (strcmp(optarg, "html") == 0)
! 258: curp.outtype = OUTT_HTML;
! 259: else if (strcmp(optarg, "markdown") == 0)
! 260: curp.outtype = OUTT_MARKDOWN;
! 261: else if (strcmp(optarg, "utf8") == 0)
! 262: curp.outtype = OUTT_UTF8;
! 263: else if (strcmp(optarg, "locale") == 0)
! 264: curp.outtype = OUTT_LOCALE;
! 265: else if (strcmp(optarg, "ps") == 0)
! 266: curp.outtype = OUTT_PS;
! 267: else if (strcmp(optarg, "pdf") == 0)
! 268: curp.outtype = OUTT_PDF;
! 269: else {
! 270: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
! 271: "-T %s", optarg);
! 272: return mandoc_msg_getrc();
! 273: }
1.1 kristaps 274: break;
1.90 schwarze 275: case 'W':
1.231 ! schwarze 276: if (woptions(&curp, optarg) == -1)
! 277: return mandoc_msg_getrc();
1.1 kristaps 278: break;
1.95 schwarze 279: case 'w':
280: outmode = OUTMODE_FLN;
281: break;
1.1 kristaps 282: default:
1.95 schwarze 283: show_usage = 1;
284: break;
285: }
286: }
287:
288: if (show_usage)
289: usage(search.argmode);
290:
291: /* Postprocess options. */
292:
293: if (outmode == OUTMODE_DEF) {
294: switch (search.argmode) {
295: case ARG_FILE:
296: outmode = OUTMODE_ALL;
1.149 schwarze 297: use_pager = 0;
1.95 schwarze 298: break;
299: case ARG_NAME:
300: outmode = OUTMODE_ONE;
301: break;
302: default:
303: outmode = OUTMODE_LST;
304: break;
1.186 schwarze 305: }
306: }
307:
308: if (oarg != NULL) {
309: if (outmode == OUTMODE_LST)
310: search.outkey = oarg;
311: else {
312: while (oarg != NULL) {
313: if (manconf_output(&conf.output,
1.229 schwarze 314: strsep(&oarg, ","), 0) == -1)
1.231 ! schwarze 315: return mandoc_msg_getrc();
1.186 schwarze 316: }
1.95 schwarze 317: }
318: }
319:
1.218 schwarze 320: if (curp.outtype != OUTT_TREE || !curp.outopts->noval)
321: options |= MPARSE_VALIDATE;
322:
1.151 schwarze 323: if (outmode == OUTMODE_FLN ||
324: outmode == OUTMODE_LST ||
325: !isatty(STDOUT_FILENO))
326: use_pager = 0;
1.207 schwarze 327:
328: if (use_pager &&
329: (conf.output.width == 0 || conf.output.indent == 0) &&
1.209 schwarze 330: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
331: ws.ws_col > 1) {
1.207 schwarze 332: if (conf.output.width == 0 && ws.ws_col < 79)
333: conf.output.width = ws.ws_col - 1;
334: if (conf.output.indent == 0 && ws.ws_col < 66)
335: conf.output.indent = 3;
336: }
1.151 schwarze 337:
1.231 ! schwarze 338: if (use_pager == 0) {
! 339: if (pledge("stdio rpath", NULL) == -1) {
! 340: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
! 341: "%s", strerror(errno));
! 342: return mandoc_msg_getrc();
! 343: }
! 344: }
1.154 schwarze 345:
1.95 schwarze 346: /* Parse arguments. */
347:
1.124 schwarze 348: if (argc > 0) {
349: argc -= optind;
350: argv += optind;
351: }
1.95 schwarze 352: resp = NULL;
353:
1.110 schwarze 354: /*
355: * Quirks for help(1)
356: * and for a man(1) section argument without -s.
357: */
358:
359: if (search.argmode == ARG_NAME) {
1.162 schwarze 360: if (*progname == 'h') {
1.110 schwarze 361: if (argc == 0) {
362: argv = help_argv;
363: argc = 1;
364: }
1.117 schwarze 365: } else if (argc > 1 &&
1.128 schwarze 366: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.113 schwarze 367: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.226 schwarze 368: isalpha(uc[1]))) ||
1.113 schwarze 369: (uc[0] == 'n' && uc[1] == '\0'))) {
1.128 schwarze 370: search.sec = (char *)uc;
1.110 schwarze 371: argv++;
372: argc--;
373: }
1.122 schwarze 374: if (search.arch == NULL)
375: search.arch = getenv("MACHINE");
376: if (search.arch == NULL)
377: search.arch = MACHINE;
1.95 schwarze 378: }
379:
1.219 schwarze 380: /*
381: * Use the first argument for -O tag in addition to
382: * using it as a search term for man(1) or apropos(1).
383: */
384:
385: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
386: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
387: strchr(*argv, '=') : NULL;
388: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
389: }
390:
1.95 schwarze 391: /* man(1), whatis(1), apropos(1) */
392:
393: if (search.argmode != ARG_FILE) {
1.107 schwarze 394: if (search.argmode == ARG_NAME &&
395: outmode == OUTMODE_ONE)
396: search.firstmatch = 1;
1.95 schwarze 397:
398: /* Access the mandoc database. */
399:
1.134 schwarze 400: manconf_parse(&conf, conf_file, defpaths, auxpaths);
401: if ( ! mansearch(&search, &conf.manpath,
402: argc, argv, &res, &sz))
1.95 schwarze 403: usage(search.argmode);
1.119 schwarze 404:
1.208 schwarze 405: if (sz == 0 && search.argmode == ARG_NAME)
1.231 ! schwarze 406: (void)fs_search(&search, &conf.manpath,
1.208 schwarze 407: argc, argv, &res, &sz);
408:
409: if (search.argmode == ARG_NAME) {
410: for (c = 0; c < argc; c++) {
411: if (strchr(argv[c], '/') == NULL)
412: continue;
413: if (access(argv[c], R_OK) == -1) {
1.231 ! schwarze 414: mandoc_msg_setinfilename(argv[c]);
! 415: mandoc_msg(MANDOCERR_BADARG_BAD,
! 416: 0, 0, "%s", strerror(errno));
! 417: mandoc_msg_setinfilename(NULL);
1.208 schwarze 418: continue;
419: }
420: res = mandoc_reallocarray(res,
421: sz + 1, sizeof(*res));
422: res[sz].file = mandoc_strdup(argv[c]);
423: res[sz].names = NULL;
424: res[sz].output = NULL;
1.225 schwarze 425: res[sz].bits = 0;
1.208 schwarze 426: res[sz].ipath = SIZE_MAX;
427: res[sz].sec = 10;
428: res[sz].form = FORM_SRC;
429: sz++;
430: }
1.142 schwarze 431: }
1.95 schwarze 432:
433: if (sz == 0) {
1.208 schwarze 434: if (search.argmode != ARG_NAME)
435: warnx("nothing appropriate");
1.215 schwarze 436: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.95 schwarze 437: goto out;
438: }
439:
440: /*
441: * For standard man(1) and -a output mode,
442: * prepare for copying filename pointers
443: * into the program parameter array.
444: */
445:
446: if (outmode == OUTMODE_ONE) {
447: argc = 1;
1.227 schwarze 448: best_prio = 40;
1.95 schwarze 449: } else if (outmode == OUTMODE_ALL)
450: argc = (int)sz;
451:
452: /* Iterate all matching manuals. */
453:
1.119 schwarze 454: resp = res;
1.95 schwarze 455: for (i = 0; i < sz; i++) {
456: if (outmode == OUTMODE_FLN)
457: puts(res[i].file);
458: else if (outmode == OUTMODE_LST)
459: printf("%s - %s\n", res[i].names,
460: res[i].output == NULL ? "" :
461: res[i].output);
462: else if (outmode == OUTMODE_ONE) {
463: /* Search for the best section. */
1.171 schwarze 464: sec = res[i].file;
465: sec += strcspn(sec, "123456789");
466: if (sec[0] == '\0')
1.227 schwarze 467: continue; /* No section at all. */
1.171 schwarze 468: prio = sec_prios[sec[0] - '1'];
1.227 schwarze 469: if (search.sec != NULL) {
470: ssz = strlen(search.sec);
471: if (strncmp(sec, search.sec, ssz) == 0)
472: sec += ssz;
473: } else
474: sec++; /* Prefer without suffix. */
475: if (*sec != '/')
476: prio += 10; /* Wrong dir name. */
477: if (search.sec != NULL &&
478: (strlen(sec) <= ssz + 3 ||
479: strcmp(sec + strlen(sec) - ssz,
480: search.sec) != 0))
481: prio += 20; /* Wrong file ext. */
1.95 schwarze 482: if (prio >= best_prio)
483: continue;
484: best_prio = prio;
485: resp = res + i;
486: }
1.1 kristaps 487: }
488:
1.95 schwarze 489: /*
490: * For man(1), -a and -i output mode, fall through
491: * to the main mandoc(1) code iterating files
492: * and running the parsers on each of them.
493: */
494:
495: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
496: goto out;
497: }
498:
499: /* mandoc(1) */
1.157 schwarze 500:
1.167 schwarze 501: if (use_pager) {
1.231 ! schwarze 502: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
! 503: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
! 504: "%s", strerror(errno));
! 505: return mandoc_msg_getrc();
! 506: }
1.167 schwarze 507: } else {
1.231 ! schwarze 508: if (pledge("stdio rpath", NULL) == -1) {
! 509: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
! 510: "%s", strerror(errno));
! 511: return mandoc_msg_getrc();
! 512: }
1.167 schwarze 513: }
1.95 schwarze 514:
1.231 ! schwarze 515: if (search.argmode == ARG_FILE && auxpaths != NULL) {
! 516: if (strcmp(auxpaths, "doc") == 0)
! 517: options |= MPARSE_MDOC;
! 518: else if (strcmp(auxpaths, "an") == 0)
! 519: options |= MPARSE_MAN;
! 520: }
1.146 schwarze 521:
1.155 schwarze 522: mchars_alloc();
1.215 schwarze 523: curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
1.76 schwarze 524:
1.124 schwarze 525: if (argc < 1) {
1.219 schwarze 526: if (use_pager) {
1.149 schwarze 527: tag_files = tag_init();
1.230 espie 528: if (tag_files != NULL)
529: tag_files->tagname = conf.output.tag;
1.219 schwarze 530: }
1.215 schwarze 531: thisarg = "<stdin>";
532: mandoc_msg_setinfilename(thisarg);
533: parse(&curp, STDIN_FILENO, thisarg);
534: mandoc_msg_setinfilename(NULL);
1.118 schwarze 535: }
1.27 schwarze 536:
1.208 schwarze 537: /*
538: * Remember the original working directory, if possible.
539: * This will be needed if some names on the command line
540: * are page names and some are relative file names.
541: * Do not error out if the current directory is not
542: * readable: Maybe it won't be needed after all.
543: */
544: startdir = open(".", O_RDONLY | O_DIRECTORY);
545:
1.124 schwarze 546: while (argc > 0) {
1.208 schwarze 547:
548: /*
549: * Changing directories is not needed in ARG_FILE mode.
550: * Do it on a best-effort basis. Even in case of
551: * failure, some functionality may still work.
552: */
553: if (resp != NULL) {
554: if (resp->ipath != SIZE_MAX)
555: (void)chdir(conf.manpath.paths[resp->ipath]);
556: else if (startdir != -1)
557: (void)fchdir(startdir);
1.215 schwarze 558: thisarg = resp->file;
559: } else
560: thisarg = *argv;
1.208 schwarze 561:
1.231 ! schwarze 562: mandoc_msg_setinfilename(thisarg);
1.215 schwarze 563: fd = mparse_open(curp.mp, thisarg);
1.118 schwarze 564: if (fd != -1) {
1.149 schwarze 565: if (use_pager) {
1.212 schwarze 566: use_pager = 0;
1.149 schwarze 567: tag_files = tag_init();
1.230 espie 568: if (tag_files != NULL)
569: tag_files->tagname = conf.output.tag;
1.149 schwarze 570: }
1.118 schwarze 571:
1.215 schwarze 572: if (resp == NULL || resp->form == FORM_SRC)
573: parse(&curp, fd, thisarg);
1.208 schwarze 574: else
1.231 ! schwarze 575: passthrough(fd, conf.output.synopsisonly);
1.205 schwarze 576:
577: if (ferror(stdout)) {
578: if (tag_files != NULL) {
1.231 ! schwarze 579: mandoc_msg(MANDOCERR_WRITE, 0, 0,
! 580: "%s: %s", tag_files->ofn,
! 581: strerror(errno));
1.205 schwarze 582: tag_unlink();
583: tag_files = NULL;
584: } else
1.231 ! schwarze 585: mandoc_msg(MANDOCERR_WRITE, 0, 0,
! 586: "%s", strerror(errno));
1.205 schwarze 587: break;
588: }
1.118 schwarze 589:
1.179 schwarze 590: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
591: if (curp.outdata == NULL)
592: outdata_alloc(&curp);
1.173 schwarze 593: terminal_sepline(curp.outdata);
1.179 schwarze 594: }
1.217 schwarze 595: } else
1.231 ! schwarze 596: mandoc_msg(resp == NULL ? MANDOCERR_BADARG_BAD :
! 597: MANDOCERR_OPEN, 0, 0, "%s", strerror(errno));
! 598:
! 599: mandoc_msg_setinfilename(NULL);
1.100 schwarze 600:
1.215 schwarze 601: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.27 schwarze 602: break;
1.116 schwarze 603:
1.118 schwarze 604: if (resp != NULL)
605: resp++;
606: else
607: argv++;
608: if (--argc)
609: mparse_reset(curp.mp);
1.1 kristaps 610: }
1.208 schwarze 611: if (startdir != -1) {
612: (void)fchdir(startdir);
613: close(startdir);
614: }
1.1 kristaps 615:
1.160 schwarze 616: if (curp.outdata != NULL) {
617: switch (curp.outtype) {
618: case OUTT_HTML:
619: html_free(curp.outdata);
620: break;
621: case OUTT_UTF8:
622: case OUTT_LOCALE:
623: case OUTT_ASCII:
624: ascii_free(curp.outdata);
625: break;
626: case OUTT_PDF:
627: case OUTT_PS:
628: pspdf_free(curp.outdata);
629: break;
630: default:
631: break;
632: }
1.158 schwarze 633: }
1.197 schwarze 634: mandoc_xr_free();
1.102 schwarze 635: mparse_free(curp.mp);
1.155 schwarze 636: mchars_free();
1.95 schwarze 637:
638: out:
639: if (search.argmode != ARG_FILE) {
1.134 schwarze 640: manconf_free(&conf);
1.95 schwarze 641: mansearch_free(res, sz);
642: }
643:
1.196 schwarze 644: free(curp.os_s);
1.1 kristaps 645:
1.129 schwarze 646: /*
1.149 schwarze 647: * When using a pager, finish writing both temporary files,
648: * fork it, wait for the user to close it, and clean up.
1.129 schwarze 649: */
650:
1.149 schwarze 651: if (tag_files != NULL) {
1.130 schwarze 652: fclose(stdout);
1.144 schwarze 653: tag_write();
1.166 schwarze 654: man_pgid = getpgid(0);
655: tag_files->tcpgid = man_pgid == getpid() ?
656: getpgid(getppid()) : man_pgid;
657: pager_pid = 0;
658: signum = SIGSTOP;
1.165 schwarze 659: for (;;) {
1.166 schwarze 660:
661: /* Stop here until moved to the foreground. */
662:
1.182 schwarze 663: tc_pgid = tcgetpgrp(tag_files->ofd);
1.166 schwarze 664: if (tc_pgid != man_pgid) {
665: if (tc_pgid == pager_pid) {
1.182 schwarze 666: (void)tcsetpgrp(tag_files->ofd,
1.166 schwarze 667: man_pgid);
668: if (signum == SIGTTIN)
669: continue;
670: } else
671: tag_files->tcpgid = tc_pgid;
672: kill(0, signum);
673: continue;
674: }
675:
676: /* Once in the foreground, activate the pager. */
677:
678: if (pager_pid) {
1.182 schwarze 679: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.166 schwarze 680: kill(pager_pid, SIGCONT);
681: } else
682: pager_pid = spawn_pager(tag_files);
683:
684: /* Wait for the pager to stop or exit. */
685:
686: while ((pid = waitpid(pager_pid, &status,
687: WUNTRACED)) == -1 && errno == EINTR)
688: continue;
689:
690: if (pid == -1) {
1.231 ! schwarze 691: mandoc_msg(MANDOCERR_WAIT, 0, 0,
! 692: "%s", strerror(errno));
1.165 schwarze 693: break;
694: }
695: if (!WIFSTOPPED(status))
696: break;
697:
1.166 schwarze 698: signum = WSTOPSIG(status);
1.165 schwarze 699: }
1.144 schwarze 700: tag_unlink();
1.130 schwarze 701: }
1.215 schwarze 702: return (int)mandoc_msg_getrc();
1.1 kristaps 703: }
704:
1.20 schwarze 705: static void
1.95 schwarze 706: usage(enum argmode argmode)
1.1 kristaps 707: {
1.95 schwarze 708: switch (argmode) {
709: case ARG_FILE:
1.190 schwarze 710: fputs("usage: mandoc [-ac] [-I os=name] "
711: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.133 schwarze 712: "\t [-T output] [-W level] [file ...]\n", stderr);
1.95 schwarze 713: break;
714: case ARG_NAME:
1.190 schwarze 715: fputs("usage: man [-acfhklw] [-C file] [-M path] "
716: "[-m path] [-S subsection]\n"
717: "\t [[-s] section] name ...\n", stderr);
1.95 schwarze 718: break;
719: case ARG_WORD:
1.190 schwarze 720: fputs("usage: whatis [-afk] [-C file] "
1.96 schwarze 721: "[-M path] [-m path] [-O outkey] [-S arch]\n"
722: "\t [-s section] name ...\n", stderr);
1.95 schwarze 723: break;
724: case ARG_EXPR:
1.190 schwarze 725: fputs("usage: apropos [-afk] [-C file] "
1.96 schwarze 726: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.95 schwarze 727: "\t [-s section] expression ...\n", stderr);
728: break;
729: }
1.47 schwarze 730: exit((int)MANDOCLEVEL_BADARG);
1.119 schwarze 731: }
732:
733: static int
734: fs_lookup(const struct manpaths *paths, size_t ipath,
735: const char *sec, const char *arch, const char *name,
736: struct manpage **res, size_t *ressz)
737: {
1.228 schwarze 738: struct stat sb;
1.127 schwarze 739: glob_t globinfo;
1.119 schwarze 740: struct manpage *page;
741: char *file;
1.177 schwarze 742: int globres;
743: enum form form;
1.119 schwarze 744:
1.127 schwarze 745: form = FORM_SRC;
1.119 schwarze 746: mandoc_asprintf(&file, "%s/man%s/%s.%s",
747: paths->paths[ipath], sec, name, sec);
1.228 schwarze 748: if (stat(file, &sb) != -1)
1.119 schwarze 749: goto found;
750: free(file);
751:
752: mandoc_asprintf(&file, "%s/cat%s/%s.0",
753: paths->paths[ipath], sec, name);
1.228 schwarze 754: if (stat(file, &sb) != -1) {
1.119 schwarze 755: form = FORM_CAT;
756: goto found;
757: }
758: free(file);
759:
760: if (arch != NULL) {
761: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
762: paths->paths[ipath], sec, arch, name, sec);
1.228 schwarze 763: if (stat(file, &sb) != -1)
1.119 schwarze 764: goto found;
765: free(file);
766: }
1.127 schwarze 767:
1.145 schwarze 768: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.127 schwarze 769: paths->paths[ipath], sec, name);
770: globres = glob(file, 0, NULL, &globinfo);
771: if (globres != 0 && globres != GLOB_NOMATCH)
1.231 ! schwarze 772: mandoc_msg(MANDOCERR_GLOB, 0, 0,
! 773: "%s: %s", file, strerror(errno));
1.127 schwarze 774: free(file);
775: if (globres == 0)
776: file = mandoc_strdup(*globinfo.gl_pathv);
777: globfree(&globinfo);
1.228 schwarze 778: if (globres == 0) {
779: if (stat(file, &sb) != -1)
780: goto found;
781: free(file);
782: }
1.199 schwarze 783: if (res != NULL || ipath + 1 != paths->sz)
1.231 ! schwarze 784: return -1;
1.119 schwarze 785:
1.199 schwarze 786: mandoc_asprintf(&file, "%s.%s", name, sec);
1.228 schwarze 787: globres = stat(file, &sb);
1.199 schwarze 788: free(file);
1.231 ! schwarze 789: return globres;
1.199 schwarze 790:
1.119 schwarze 791: found:
1.152 schwarze 792: warnx("outdated mandoc.db lacks %s(%s) entry, run makewhatis %s",
793: name, sec, paths->paths[ipath]);
1.199 schwarze 794: if (res == NULL) {
795: free(file);
1.231 ! schwarze 796: return 0;
1.199 schwarze 797: }
1.231 ! schwarze 798: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.119 schwarze 799: page = *res + (*ressz - 1);
800: page->file = file;
801: page->names = NULL;
802: page->output = NULL;
1.225 schwarze 803: page->bits = NAME_FILE & NAME_MASK;
1.119 schwarze 804: page->ipath = ipath;
805: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
806: page->form = form;
1.231 ! schwarze 807: return 0;
1.119 schwarze 808: }
809:
1.198 schwarze 810: static int
1.119 schwarze 811: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
812: int argc, char **argv, struct manpage **res, size_t *ressz)
813: {
814: const char *const sections[] =
1.171 schwarze 815: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.119 schwarze 816: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
817:
818: size_t ipath, isec, lastsz;
819:
820: assert(cfg->argmode == ARG_NAME);
821:
1.198 schwarze 822: if (res != NULL)
823: *res = NULL;
1.119 schwarze 824: *ressz = lastsz = 0;
825: while (argc) {
826: for (ipath = 0; ipath < paths->sz; ipath++) {
827: if (cfg->sec != NULL) {
828: if (fs_lookup(paths, ipath, cfg->sec,
1.231 ! schwarze 829: cfg->arch, *argv, res, ressz) != -1 &&
1.119 schwarze 830: cfg->firstmatch)
1.231 ! schwarze 831: return 0;
1.119 schwarze 832: } else for (isec = 0; isec < nsec; isec++)
833: if (fs_lookup(paths, ipath, sections[isec],
1.231 ! schwarze 834: cfg->arch, *argv, res, ressz) != -1 &&
1.119 schwarze 835: cfg->firstmatch)
1.231 ! schwarze 836: return 0;
1.119 schwarze 837: }
1.208 schwarze 838: if (res != NULL && *ressz == lastsz &&
1.210 schwarze 839: strchr(*argv, '/') == NULL) {
1.223 schwarze 840: if (cfg->arch != NULL &&
841: arch_valid(cfg->arch, MANDOC_OS_OPENBSD) == 0)
842: warnx("Unknown architecture \"%s\".",
843: cfg->arch);
844: else if (cfg->sec == NULL)
1.210 schwarze 845: warnx("No entry for %s in the manual.",
846: *argv);
847: else
848: warnx("No entry for %s in section %s "
849: "of the manual.", *argv, cfg->sec);
850: }
1.119 schwarze 851: lastsz = *ressz;
852: argv++;
853: argc--;
854: }
1.231 ! schwarze 855: return -1;
1.1 kristaps 856: }
857:
1.27 schwarze 858: static void
1.132 schwarze 859: parse(struct curparse *curp, int fd, const char *file)
1.52 schwarze 860: {
1.218 schwarze 861: struct roff_meta *meta;
1.52 schwarze 862:
1.76 schwarze 863: /* Begin by parsing the file itself. */
1.52 schwarze 864:
1.76 schwarze 865: assert(file);
1.170 florian 866: assert(fd >= 0);
1.52 schwarze 867:
1.215 schwarze 868: mparse_readfd(curp->mp, fd, file);
1.168 schwarze 869: if (fd != STDIN_FILENO)
870: close(fd);
1.1 kristaps 871:
1.51 schwarze 872: /*
1.76 schwarze 873: * With -Wstop and warnings or errors of at least the requested
874: * level, do not produce output.
1.51 schwarze 875: */
876:
1.215 schwarze 877: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.132 schwarze 878: return;
1.51 schwarze 879:
1.179 schwarze 880: if (curp->outdata == NULL)
881: outdata_alloc(curp);
1.222 schwarze 882: else if (curp->outtype == OUTT_HTML)
883: html_reset(curp);
1.51 schwarze 884:
1.218 schwarze 885: mandoc_xr_reset();
886: meta = mparse_result(curp->mp);
1.158 schwarze 887:
888: /* Execute the out device, if it exists. */
889:
1.218 schwarze 890: if (meta->macroset == MACROSET_MDOC) {
1.51 schwarze 891: switch (curp->outtype) {
1.90 schwarze 892: case OUTT_HTML:
1.218 schwarze 893: html_mdoc(curp->outdata, meta);
1.51 schwarze 894: break;
1.90 schwarze 895: case OUTT_TREE:
1.218 schwarze 896: tree_mdoc(curp->outdata, meta);
1.51 schwarze 897: break;
1.90 schwarze 898: case OUTT_MAN:
1.218 schwarze 899: man_mdoc(curp->outdata, meta);
1.78 schwarze 900: break;
1.90 schwarze 901: case OUTT_PDF:
902: case OUTT_ASCII:
903: case OUTT_UTF8:
904: case OUTT_LOCALE:
905: case OUTT_PS:
1.218 schwarze 906: terminal_mdoc(curp->outdata, meta);
1.158 schwarze 907: break;
1.188 schwarze 908: case OUTT_MARKDOWN:
1.218 schwarze 909: markdown_mdoc(curp->outdata, meta);
1.188 schwarze 910: break;
1.158 schwarze 911: default:
912: break;
913: }
914: }
1.218 schwarze 915: if (meta->macroset == MACROSET_MAN) {
1.158 schwarze 916: switch (curp->outtype) {
917: case OUTT_HTML:
1.218 schwarze 918: html_man(curp->outdata, meta);
1.158 schwarze 919: break;
920: case OUTT_TREE:
1.218 schwarze 921: tree_man(curp->outdata, meta);
1.158 schwarze 922: break;
923: case OUTT_MAN:
1.211 schwarze 924: mparse_copy(curp->mp);
1.158 schwarze 925: break;
926: case OUTT_PDF:
927: case OUTT_ASCII:
928: case OUTT_UTF8:
929: case OUTT_LOCALE:
930: case OUTT_PS:
1.218 schwarze 931: terminal_man(curp->outdata, meta);
1.51 schwarze 932: break;
933: default:
934: break;
935: }
1.179 schwarze 936: }
1.215 schwarze 937: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
938: check_xr();
1.197 schwarze 939: }
940:
941: static void
1.215 schwarze 942: check_xr(void)
1.197 schwarze 943: {
944: static struct manpaths paths;
945: struct mansearch search;
946: struct mandoc_xr *xr;
947: size_t sz;
948:
949: if (paths.sz == 0)
950: manpath_base(&paths);
951:
952: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.200 schwarze 953: if (xr->line == -1)
954: continue;
1.197 schwarze 955: search.arch = NULL;
956: search.sec = xr->sec;
957: search.outkey = NULL;
958: search.argmode = ARG_NAME;
959: search.firstmatch = 1;
960: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.198 schwarze 961: continue;
1.231 ! schwarze 962: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz) != -1)
1.197 schwarze 963: continue;
1.201 schwarze 964: if (xr->count == 1)
1.216 schwarze 965: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
966: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.201 schwarze 967: else
1.216 schwarze 968: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
969: xr->pos + 1, "Xr %s %s (%d times)",
1.201 schwarze 970: xr->name, xr->sec, xr->count);
1.197 schwarze 971: }
1.179 schwarze 972: }
973:
974: static void
975: outdata_alloc(struct curparse *curp)
976: {
977: switch (curp->outtype) {
978: case OUTT_HTML:
979: curp->outdata = html_alloc(curp->outopts);
980: break;
981: case OUTT_UTF8:
982: curp->outdata = utf8_alloc(curp->outopts);
983: break;
984: case OUTT_LOCALE:
985: curp->outdata = locale_alloc(curp->outopts);
986: break;
987: case OUTT_ASCII:
988: curp->outdata = ascii_alloc(curp->outopts);
989: break;
990: case OUTT_PDF:
991: curp->outdata = pdf_alloc(curp->outopts);
992: break;
993: case OUTT_PS:
994: curp->outdata = ps_alloc(curp->outopts);
995: break;
996: default:
997: break;
1.51 schwarze 998: }
1.1 kristaps 999: }
1000:
1.132 schwarze 1001: static void
1.231 ! schwarze 1002: passthrough(int fd, int synopsis_only)
1.95 schwarze 1003: {
1.105 schwarze 1004: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
1005: const char synr[] = "SYNOPSIS";
1006:
1007: FILE *stream;
1.164 schwarze 1008: char *line, *cp;
1009: size_t linesz;
1.180 schwarze 1010: ssize_t len, written;
1.231 ! schwarze 1011: int lno, print;
1.116 schwarze 1012:
1.231 ! schwarze 1013: stream = NULL;
1.164 schwarze 1014: line = NULL;
1015: linesz = 0;
1.105 schwarze 1016:
1.180 schwarze 1017: if (fflush(stdout) == EOF) {
1.231 ! schwarze 1018: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
! 1019: goto done;
1.180 schwarze 1020: }
1.105 schwarze 1021: if ((stream = fdopen(fd, "r")) == NULL) {
1022: close(fd);
1.231 ! schwarze 1023: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
! 1024: goto done;
1.105 schwarze 1025: }
1.95 schwarze 1026:
1.231 ! schwarze 1027: lno = print = 0;
1.180 schwarze 1028: while ((len = getline(&line, &linesz, stream)) != -1) {
1.231 ! schwarze 1029: lno++;
1.164 schwarze 1030: cp = line;
1.105 schwarze 1031: if (synopsis_only) {
1032: if (print) {
1.164 schwarze 1033: if ( ! isspace((unsigned char)*cp))
1.105 schwarze 1034: goto done;
1.180 schwarze 1035: while (isspace((unsigned char)*cp)) {
1.164 schwarze 1036: cp++;
1.180 schwarze 1037: len--;
1038: }
1.105 schwarze 1039: } else {
1.164 schwarze 1040: if (strcmp(cp, synb) == 0 ||
1041: strcmp(cp, synr) == 0)
1.105 schwarze 1042: print = 1;
1043: continue;
1044: }
1045: }
1.180 schwarze 1046: for (; len > 0; len -= written) {
1.231 ! schwarze 1047: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
! 1048: mandoc_msg(MANDOCERR_WRITE, 0, 0,
! 1049: "%s", strerror(errno));
! 1050: goto done;
! 1051: }
1.164 schwarze 1052: }
1.105 schwarze 1053: }
1.231 ! schwarze 1054: if (ferror(stream))
! 1055: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.101 schwarze 1056:
1.105 schwarze 1057: done:
1.164 schwarze 1058: free(line);
1.231 ! schwarze 1059: if (stream != NULL)
! 1060: fclose(stream);
1.1 kristaps 1061: }
1062:
1063: static int
1.45 schwarze 1064: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1065: {
1.10 schwarze 1066: char *v, *o;
1.196 schwarze 1067: const char *toks[11];
1.1 kristaps 1068:
1.45 schwarze 1069: toks[0] = "stop";
1070: toks[1] = "all";
1.196 schwarze 1071: toks[2] = "base";
1072: toks[3] = "style";
1073: toks[4] = "warning";
1074: toks[5] = "error";
1075: toks[6] = "unsupp";
1076: toks[7] = "fatal";
1077: toks[8] = "openbsd";
1078: toks[9] = "netbsd";
1079: toks[10] = NULL;
1.1 kristaps 1080:
1.10 schwarze 1081: while (*arg) {
1082: o = arg;
1.176 schwarze 1083: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.90 schwarze 1084: case 0:
1.45 schwarze 1085: curp->wstop = 1;
1.1 kristaps 1086: break;
1.90 schwarze 1087: case 1:
1088: case 2:
1.215 schwarze 1089: mandoc_msg_setmin(MANDOCERR_BASE);
1.193 schwarze 1090: break;
1091: case 3:
1.215 schwarze 1092: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1093: break;
1.193 schwarze 1094: case 4:
1.215 schwarze 1095: mandoc_msg_setmin(MANDOCERR_WARNING);
1.1 kristaps 1096: break;
1.193 schwarze 1097: case 5:
1.215 schwarze 1098: mandoc_msg_setmin(MANDOCERR_ERROR);
1.123 schwarze 1099: break;
1.193 schwarze 1100: case 6:
1.215 schwarze 1101: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.196 schwarze 1102: break;
1103: case 7:
1.231 ! schwarze 1104: mandoc_msg_setmin(MANDOCERR_BADARG);
1.196 schwarze 1105: break;
1106: case 8:
1.215 schwarze 1107: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1108: curp->os_e = MANDOC_OS_OPENBSD;
1109: break;
1110: case 9:
1.215 schwarze 1111: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1112: curp->os_e = MANDOC_OS_NETBSD;
1.19 schwarze 1113: break;
1.1 kristaps 1114: default:
1.231 ! schwarze 1115: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
! 1116: return -1;
1.1 kristaps 1117: }
1.10 schwarze 1118: }
1.231 ! schwarze 1119: return 0;
1.95 schwarze 1120: }
1121:
1.130 schwarze 1122: static pid_t
1.149 schwarze 1123: spawn_pager(struct tag_files *tag_files)
1.95 schwarze 1124: {
1.172 schwarze 1125: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.95 schwarze 1126: #define MAX_PAGER_ARGS 16
1127: char *argv[MAX_PAGER_ARGS];
1128: const char *pager;
1129: char *cp;
1.144 schwarze 1130: size_t cmdlen;
1.212 schwarze 1131: int argc, use_ofn;
1.130 schwarze 1132: pid_t pager_pid;
1.95 schwarze 1133:
1.144 schwarze 1134: pager = getenv("MANPAGER");
1135: if (pager == NULL || *pager == '\0')
1136: pager = getenv("PAGER");
1137: if (pager == NULL || *pager == '\0')
1138: pager = "more -s";
1139: cp = mandoc_strdup(pager);
1140:
1141: /*
1142: * Parse the pager command into words.
1143: * Intentionally do not do anything fancy here.
1144: */
1145:
1146: argc = 0;
1.212 schwarze 1147: while (argc + 5 < MAX_PAGER_ARGS) {
1.144 schwarze 1148: argv[argc++] = cp;
1149: cp = strchr(cp, ' ');
1150: if (cp == NULL)
1151: break;
1152: *cp++ = '\0';
1153: while (*cp == ' ')
1154: cp++;
1155: if (*cp == '\0')
1156: break;
1157: }
1158:
1.149 schwarze 1159: /* For more(1) and less(1), use the tag file. */
1.144 schwarze 1160:
1.212 schwarze 1161: use_ofn = 1;
1.149 schwarze 1162: if ((cmdlen = strlen(argv[0])) >= 4) {
1.144 schwarze 1163: cp = argv[0] + cmdlen - 4;
1.149 schwarze 1164: if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) {
1165: argv[argc++] = mandoc_strdup("-T");
1166: argv[argc++] = tag_files->tfn;
1.212 schwarze 1167: if (tag_files->tagname != NULL) {
1168: argv[argc++] = mandoc_strdup("-t");
1169: argv[argc++] = tag_files->tagname;
1170: use_ofn = 0;
1171: }
1.149 schwarze 1172: }
1.144 schwarze 1173: }
1.212 schwarze 1174: if (use_ofn)
1175: argv[argc++] = tag_files->ofn;
1.144 schwarze 1176: argv[argc] = NULL;
1177:
1.130 schwarze 1178: switch (pager_pid = fork()) {
1.95 schwarze 1179: case -1:
1.231 ! schwarze 1180: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
! 1181: exit(mandoc_msg_getrc());
1.95 schwarze 1182: case 0:
1.129 schwarze 1183: break;
1184: default:
1.165 schwarze 1185: (void)setpgid(pager_pid, 0);
1.182 schwarze 1186: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.231 ! schwarze 1187: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
! 1188: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
! 1189: "%s", strerror(errno));
! 1190: exit(mandoc_msg_getrc());
! 1191: }
1.166 schwarze 1192: tag_files->pager_pid = pager_pid;
1.150 schwarze 1193: return pager_pid;
1.95 schwarze 1194: }
1195:
1.129 schwarze 1196: /* The child process becomes the pager. */
1.95 schwarze 1197:
1.231 ! schwarze 1198: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
! 1199: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
! 1200: _exit(mandoc_msg_getrc());
! 1201: }
1.149 schwarze 1202: close(tag_files->ofd);
1.206 tb 1203: assert(tag_files->tfd == -1);
1.172 schwarze 1204:
1205: /* Do not start the pager before controlling the terminal. */
1206:
1.182 schwarze 1207: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.172 schwarze 1208: nanosleep(&timeout, NULL);
1209:
1.95 schwarze 1210: execvp(argv[0], argv);
1.231 ! schwarze 1211: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
! 1212: _exit(mandoc_msg_getrc());
1.30 schwarze 1213: }
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