Annotation of src/usr.bin/mandoc/main.c, Revision 1.236
1.236 ! schwarze 1: /* $OpenBSD: main.c,v 1.235 2019/07/19 21:45:37 schwarze 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:
1.235 schwarze 53: #define BINM_APROPOS "apropos"
54: #define BINM_MAN "man"
55: #define BINM_MAKEWHATIS "makewhatis"
56: #define BINM_WHATIS "whatis"
57: #define OSENUM MANDOC_OS_OPENBSD
58:
1.95 schwarze 59: enum outmode {
60: OUTMODE_DEF = 0,
61: OUTMODE_FLN,
62: OUTMODE_LST,
63: OUTMODE_ALL,
64: OUTMODE_ONE
65: };
1.1 kristaps 66:
67: enum outt {
1.76 schwarze 68: OUTT_ASCII = 0, /* -Tascii */
1.77 schwarze 69: OUTT_LOCALE, /* -Tlocale */
70: OUTT_UTF8, /* -Tutf8 */
1.76 schwarze 71: OUTT_TREE, /* -Ttree */
1.78 schwarze 72: OUTT_MAN, /* -Tman */
1.76 schwarze 73: OUTT_HTML, /* -Thtml */
1.188 schwarze 74: OUTT_MARKDOWN, /* -Tmarkdown */
1.76 schwarze 75: OUTT_LINT, /* -Tlint */
76: OUTT_PS, /* -Tps */
77: OUTT_PDF /* -Tpdf */
1.1 kristaps 78: };
79:
80: struct curparse {
1.76 schwarze 81: struct mparse *mp;
1.196 schwarze 82: struct manoutput *outopts; /* output options */
83: void *outdata; /* data for output */
84: char *os_s; /* operating system for display */
1.75 schwarze 85: int wstop; /* stop after a file with a warning */
1.196 schwarze 86: enum mandoc_os os_e; /* check base system conventions */
1.90 schwarze 87: enum outt outtype; /* which output to use */
1.33 schwarze 88: };
1.174 schwarze 89:
90:
91: int mandocdb(int, char *[]);
1.33 schwarze 92:
1.215 schwarze 93: static void check_xr(void);
1.119 schwarze 94: static int fs_lookup(const struct manpaths *,
95: size_t ipath, const char *,
96: const char *, const char *,
97: struct manpage **, size_t *);
1.198 schwarze 98: static int fs_search(const struct mansearch *,
1.119 schwarze 99: const struct manpaths *, int, char**,
100: struct manpage **, size_t *);
1.179 schwarze 101: static void outdata_alloc(struct curparse *);
1.132 schwarze 102: static void parse(struct curparse *, int, const char *);
1.231 schwarze 103: static void passthrough(int, int);
1.236 ! schwarze 104: static void run_pager(struct tag_files *);
1.149 schwarze 105: static pid_t spawn_pager(struct tag_files *);
1.184 schwarze 106: static void usage(enum argmode) __attribute__((__noreturn__));
1.45 schwarze 107: static int woptions(struct curparse *, char *);
1.1 kristaps 108:
1.95 schwarze 109: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.110 schwarze 110: static char help_arg[] = "help";
111: static char *help_argv[] = {help_arg, NULL};
1.1 kristaps 112:
1.90 schwarze 113:
1.1 kristaps 114: int
115: main(int argc, char *argv[])
116: {
1.134 schwarze 117: struct manconf conf;
1.186 schwarze 118: struct mansearch search;
1.1 kristaps 119: struct curparse curp;
1.207 schwarze 120: struct winsize ws;
1.149 schwarze 121: struct tag_files *tag_files;
1.186 schwarze 122: struct manpage *res, *resp;
123: const char *progname, *sec, *thisarg;
124: char *conf_file, *defpaths, *auxpaths;
1.219 schwarze 125: char *oarg, *tagarg;
1.113 schwarze 126: unsigned char *uc;
1.227 schwarze 127: size_t i, sz, ssz;
1.135 schwarze 128: int prio, best_prio;
1.95 schwarze 129: enum outmode outmode;
1.208 schwarze 130: int fd, startdir;
1.95 schwarze 131: int show_usage;
1.87 schwarze 132: int options;
1.149 schwarze 133: int use_pager;
1.95 schwarze 134: int c;
1.1 kristaps 135:
1.162 schwarze 136: progname = getprogname();
1.220 schwarze 137: mandoc_msg_setoutfile(stderr);
1.162 schwarze 138: if (strncmp(progname, "mandocdb", 8) == 0 ||
1.235 schwarze 139: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.150 schwarze 140: return mandocdb(argc, argv);
1.19 schwarze 141:
1.231 schwarze 142: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
143: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
144: return mandoc_msg_getrc();
145: }
1.154 schwarze 146:
1.95 schwarze 147: /* Search options. */
148:
1.134 schwarze 149: memset(&conf, 0, sizeof(conf));
1.111 schwarze 150: conf_file = defpaths = NULL;
151: auxpaths = NULL;
1.95 schwarze 152:
153: memset(&search, 0, sizeof(struct mansearch));
154: search.outkey = "Nd";
1.186 schwarze 155: oarg = NULL;
1.95 schwarze 156:
1.235 schwarze 157: if (strcmp(progname, BINM_MAN) == 0)
1.95 schwarze 158: search.argmode = ARG_NAME;
1.235 schwarze 159: else if (strcmp(progname, BINM_APROPOS) == 0)
1.95 schwarze 160: search.argmode = ARG_EXPR;
1.235 schwarze 161: else if (strcmp(progname, BINM_WHATIS) == 0)
1.95 schwarze 162: search.argmode = ARG_WORD;
1.162 schwarze 163: else if (strncmp(progname, "help", 4) == 0)
1.110 schwarze 164: search.argmode = ARG_NAME;
1.95 schwarze 165: else
166: search.argmode = ARG_FILE;
167:
168: /* Parser and formatter options. */
169:
1.19 schwarze 170: memset(&curp, 0, sizeof(struct curparse));
1.109 schwarze 171: curp.outtype = OUTT_LOCALE;
1.135 schwarze 172: curp.outopts = &conf.output;
1.103 schwarze 173: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.1 kristaps 174:
1.149 schwarze 175: use_pager = 1;
176: tag_files = NULL;
1.95 schwarze 177: show_usage = 0;
178: outmode = OUTMODE_DEF;
179:
1.192 schwarze 180: while ((c = getopt(argc, argv,
181: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
182: if (c == 'i' && search.argmode == ARG_EXPR) {
183: optind--;
184: break;
185: }
1.1 kristaps 186: switch (c) {
1.95 schwarze 187: case 'a':
188: outmode = OUTMODE_ALL;
189: break;
190: case 'C':
191: conf_file = optarg;
192: break;
193: case 'c':
1.149 schwarze 194: use_pager = 0;
1.95 schwarze 195: break;
196: case 'f':
197: search.argmode = ARG_WORD;
198: break;
1.98 schwarze 199: case 'h':
1.135 schwarze 200: conf.output.synopsisonly = 1;
1.149 schwarze 201: use_pager = 0;
1.98 schwarze 202: outmode = OUTMODE_ALL;
203: break;
1.90 schwarze 204: case 'I':
1.231 schwarze 205: if (strncmp(optarg, "os=", 3) != 0) {
206: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
207: "-I %s", optarg);
208: return mandoc_msg_getrc();
1.83 schwarze 209: }
1.196 schwarze 210: if (curp.os_s != NULL) {
1.231 schwarze 211: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
212: "-I %s", optarg);
213: return mandoc_msg_getrc();
1.83 schwarze 214: }
1.196 schwarze 215: curp.os_s = mandoc_strdup(optarg + 3);
1.95 schwarze 216: break;
1.103 schwarze 217: case 'K':
1.231 schwarze 218: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
219: if (strcmp(optarg, "utf-8") == 0)
220: options |= MPARSE_UTF8;
221: else if (strcmp(optarg, "iso-8859-1") == 0)
222: options |= MPARSE_LATIN1;
223: else if (strcmp(optarg, "us-ascii") != 0) {
224: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
225: "-K %s", optarg);
226: return mandoc_msg_getrc();
227: }
1.103 schwarze 228: break;
1.95 schwarze 229: case 'k':
230: search.argmode = ARG_EXPR;
231: break;
1.96 schwarze 232: case 'l':
233: search.argmode = ARG_FILE;
234: outmode = OUTMODE_ALL;
235: break;
1.95 schwarze 236: case 'M':
237: defpaths = optarg;
238: break;
1.90 schwarze 239: case 'm':
1.95 schwarze 240: auxpaths = optarg;
1.1 kristaps 241: break;
1.90 schwarze 242: case 'O':
1.186 schwarze 243: oarg = optarg;
1.17 schwarze 244: break;
1.95 schwarze 245: case 'S':
246: search.arch = optarg;
247: break;
248: case 's':
249: search.sec = optarg;
250: break;
1.90 schwarze 251: case 'T':
1.231 schwarze 252: if (strcmp(optarg, "ascii") == 0)
253: curp.outtype = OUTT_ASCII;
254: else if (strcmp(optarg, "lint") == 0) {
255: curp.outtype = OUTT_LINT;
256: mandoc_msg_setoutfile(stdout);
257: mandoc_msg_setmin(MANDOCERR_BASE);
258: } else if (strcmp(optarg, "tree") == 0)
259: curp.outtype = OUTT_TREE;
260: else if (strcmp(optarg, "man") == 0)
261: curp.outtype = OUTT_MAN;
262: else if (strcmp(optarg, "html") == 0)
263: curp.outtype = OUTT_HTML;
264: else if (strcmp(optarg, "markdown") == 0)
265: curp.outtype = OUTT_MARKDOWN;
266: else if (strcmp(optarg, "utf8") == 0)
267: curp.outtype = OUTT_UTF8;
268: else if (strcmp(optarg, "locale") == 0)
269: curp.outtype = OUTT_LOCALE;
270: else if (strcmp(optarg, "ps") == 0)
271: curp.outtype = OUTT_PS;
272: else if (strcmp(optarg, "pdf") == 0)
273: curp.outtype = OUTT_PDF;
274: else {
275: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
276: "-T %s", optarg);
277: return mandoc_msg_getrc();
278: }
1.1 kristaps 279: break;
1.90 schwarze 280: case 'W':
1.231 schwarze 281: if (woptions(&curp, optarg) == -1)
282: return mandoc_msg_getrc();
1.1 kristaps 283: break;
1.95 schwarze 284: case 'w':
285: outmode = OUTMODE_FLN;
286: break;
1.1 kristaps 287: default:
1.95 schwarze 288: show_usage = 1;
289: break;
290: }
291: }
292:
293: if (show_usage)
294: usage(search.argmode);
295:
296: /* Postprocess options. */
297:
298: if (outmode == OUTMODE_DEF) {
299: switch (search.argmode) {
300: case ARG_FILE:
301: outmode = OUTMODE_ALL;
1.149 schwarze 302: use_pager = 0;
1.95 schwarze 303: break;
304: case ARG_NAME:
305: outmode = OUTMODE_ONE;
306: break;
307: default:
308: outmode = OUTMODE_LST;
309: break;
1.186 schwarze 310: }
311: }
312:
313: if (oarg != NULL) {
314: if (outmode == OUTMODE_LST)
315: search.outkey = oarg;
316: else {
317: while (oarg != NULL) {
318: if (manconf_output(&conf.output,
1.229 schwarze 319: strsep(&oarg, ","), 0) == -1)
1.231 schwarze 320: return mandoc_msg_getrc();
1.186 schwarze 321: }
1.95 schwarze 322: }
323: }
324:
1.218 schwarze 325: if (curp.outtype != OUTT_TREE || !curp.outopts->noval)
326: options |= MPARSE_VALIDATE;
327:
1.151 schwarze 328: if (outmode == OUTMODE_FLN ||
329: outmode == OUTMODE_LST ||
330: !isatty(STDOUT_FILENO))
331: use_pager = 0;
1.207 schwarze 332:
333: if (use_pager &&
334: (conf.output.width == 0 || conf.output.indent == 0) &&
1.209 schwarze 335: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
336: ws.ws_col > 1) {
1.207 schwarze 337: if (conf.output.width == 0 && ws.ws_col < 79)
338: conf.output.width = ws.ws_col - 1;
339: if (conf.output.indent == 0 && ws.ws_col < 66)
340: conf.output.indent = 3;
341: }
1.151 schwarze 342:
1.231 schwarze 343: if (use_pager == 0) {
344: if (pledge("stdio rpath", NULL) == -1) {
345: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
346: "%s", strerror(errno));
347: return mandoc_msg_getrc();
348: }
349: }
1.154 schwarze 350:
1.95 schwarze 351: /* Parse arguments. */
352:
1.124 schwarze 353: if (argc > 0) {
354: argc -= optind;
355: argv += optind;
356: }
1.95 schwarze 357: resp = NULL;
358:
1.110 schwarze 359: /*
360: * Quirks for help(1)
361: * and for a man(1) section argument without -s.
362: */
363:
364: if (search.argmode == ARG_NAME) {
1.162 schwarze 365: if (*progname == 'h') {
1.110 schwarze 366: if (argc == 0) {
367: argv = help_argv;
368: argc = 1;
369: }
1.117 schwarze 370: } else if (argc > 1 &&
1.128 schwarze 371: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.113 schwarze 372: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.226 schwarze 373: isalpha(uc[1]))) ||
1.113 schwarze 374: (uc[0] == 'n' && uc[1] == '\0'))) {
1.128 schwarze 375: search.sec = (char *)uc;
1.110 schwarze 376: argv++;
377: argc--;
378: }
1.122 schwarze 379: if (search.arch == NULL)
380: search.arch = getenv("MACHINE");
381: if (search.arch == NULL)
382: search.arch = MACHINE;
1.95 schwarze 383: }
384:
1.219 schwarze 385: /*
386: * Use the first argument for -O tag in addition to
387: * using it as a search term for man(1) or apropos(1).
388: */
389:
390: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
391: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
392: strchr(*argv, '=') : NULL;
393: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
394: }
395:
1.95 schwarze 396: /* man(1), whatis(1), apropos(1) */
397:
398: if (search.argmode != ARG_FILE) {
1.107 schwarze 399: if (search.argmode == ARG_NAME &&
400: outmode == OUTMODE_ONE)
401: search.firstmatch = 1;
1.95 schwarze 402:
403: /* Access the mandoc database. */
404:
1.134 schwarze 405: manconf_parse(&conf, conf_file, defpaths, auxpaths);
406: if ( ! mansearch(&search, &conf.manpath,
407: argc, argv, &res, &sz))
1.95 schwarze 408: usage(search.argmode);
1.119 schwarze 409:
1.208 schwarze 410: if (sz == 0 && search.argmode == ARG_NAME)
1.231 schwarze 411: (void)fs_search(&search, &conf.manpath,
1.208 schwarze 412: argc, argv, &res, &sz);
413:
414: if (search.argmode == ARG_NAME) {
415: for (c = 0; c < argc; c++) {
416: if (strchr(argv[c], '/') == NULL)
417: continue;
418: if (access(argv[c], R_OK) == -1) {
1.231 schwarze 419: mandoc_msg_setinfilename(argv[c]);
420: mandoc_msg(MANDOCERR_BADARG_BAD,
421: 0, 0, "%s", strerror(errno));
422: mandoc_msg_setinfilename(NULL);
1.208 schwarze 423: continue;
424: }
425: res = mandoc_reallocarray(res,
426: sz + 1, sizeof(*res));
427: res[sz].file = mandoc_strdup(argv[c]);
428: res[sz].names = NULL;
429: res[sz].output = NULL;
1.225 schwarze 430: res[sz].bits = 0;
1.208 schwarze 431: res[sz].ipath = SIZE_MAX;
432: res[sz].sec = 10;
433: res[sz].form = FORM_SRC;
434: sz++;
435: }
1.142 schwarze 436: }
1.95 schwarze 437:
438: if (sz == 0) {
1.208 schwarze 439: if (search.argmode != ARG_NAME)
440: warnx("nothing appropriate");
1.215 schwarze 441: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.95 schwarze 442: goto out;
443: }
444:
445: /*
446: * For standard man(1) and -a output mode,
447: * prepare for copying filename pointers
448: * into the program parameter array.
449: */
450:
451: if (outmode == OUTMODE_ONE) {
452: argc = 1;
1.227 schwarze 453: best_prio = 40;
1.95 schwarze 454: } else if (outmode == OUTMODE_ALL)
455: argc = (int)sz;
456:
457: /* Iterate all matching manuals. */
458:
1.119 schwarze 459: resp = res;
1.95 schwarze 460: for (i = 0; i < sz; i++) {
461: if (outmode == OUTMODE_FLN)
462: puts(res[i].file);
463: else if (outmode == OUTMODE_LST)
464: printf("%s - %s\n", res[i].names,
465: res[i].output == NULL ? "" :
466: res[i].output);
467: else if (outmode == OUTMODE_ONE) {
468: /* Search for the best section. */
1.171 schwarze 469: sec = res[i].file;
470: sec += strcspn(sec, "123456789");
471: if (sec[0] == '\0')
1.227 schwarze 472: continue; /* No section at all. */
1.171 schwarze 473: prio = sec_prios[sec[0] - '1'];
1.227 schwarze 474: if (search.sec != NULL) {
475: ssz = strlen(search.sec);
476: if (strncmp(sec, search.sec, ssz) == 0)
477: sec += ssz;
478: } else
479: sec++; /* Prefer without suffix. */
480: if (*sec != '/')
481: prio += 10; /* Wrong dir name. */
482: if (search.sec != NULL &&
483: (strlen(sec) <= ssz + 3 ||
484: strcmp(sec + strlen(sec) - ssz,
485: search.sec) != 0))
486: prio += 20; /* Wrong file ext. */
1.95 schwarze 487: if (prio >= best_prio)
488: continue;
489: best_prio = prio;
490: resp = res + i;
491: }
1.1 kristaps 492: }
493:
1.95 schwarze 494: /*
495: * For man(1), -a and -i output mode, fall through
496: * to the main mandoc(1) code iterating files
497: * and running the parsers on each of them.
498: */
499:
500: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
501: goto out;
502: }
503:
504: /* mandoc(1) */
1.157 schwarze 505:
1.167 schwarze 506: if (use_pager) {
1.231 schwarze 507: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
508: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
509: "%s", strerror(errno));
510: return mandoc_msg_getrc();
511: }
1.167 schwarze 512: } else {
1.231 schwarze 513: if (pledge("stdio rpath", NULL) == -1) {
514: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
515: "%s", strerror(errno));
516: return mandoc_msg_getrc();
517: }
1.167 schwarze 518: }
1.95 schwarze 519:
1.231 schwarze 520: if (search.argmode == ARG_FILE && auxpaths != NULL) {
521: if (strcmp(auxpaths, "doc") == 0)
522: options |= MPARSE_MDOC;
523: else if (strcmp(auxpaths, "an") == 0)
524: options |= MPARSE_MAN;
525: }
1.146 schwarze 526:
1.155 schwarze 527: mchars_alloc();
1.215 schwarze 528: curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
1.76 schwarze 529:
1.124 schwarze 530: if (argc < 1) {
1.219 schwarze 531: if (use_pager) {
1.149 schwarze 532: tag_files = tag_init();
1.230 espie 533: if (tag_files != NULL)
534: tag_files->tagname = conf.output.tag;
1.219 schwarze 535: }
1.215 schwarze 536: thisarg = "<stdin>";
537: mandoc_msg_setinfilename(thisarg);
538: parse(&curp, STDIN_FILENO, thisarg);
539: mandoc_msg_setinfilename(NULL);
1.118 schwarze 540: }
1.27 schwarze 541:
1.208 schwarze 542: /*
543: * Remember the original working directory, if possible.
544: * This will be needed if some names on the command line
545: * are page names and some are relative file names.
546: * Do not error out if the current directory is not
547: * readable: Maybe it won't be needed after all.
548: */
549: startdir = open(".", O_RDONLY | O_DIRECTORY);
550:
1.124 schwarze 551: while (argc > 0) {
1.208 schwarze 552:
553: /*
554: * Changing directories is not needed in ARG_FILE mode.
555: * Do it on a best-effort basis. Even in case of
556: * failure, some functionality may still work.
557: */
558: if (resp != NULL) {
559: if (resp->ipath != SIZE_MAX)
560: (void)chdir(conf.manpath.paths[resp->ipath]);
561: else if (startdir != -1)
562: (void)fchdir(startdir);
1.215 schwarze 563: thisarg = resp->file;
564: } else
565: thisarg = *argv;
1.208 schwarze 566:
1.231 schwarze 567: mandoc_msg_setinfilename(thisarg);
1.215 schwarze 568: fd = mparse_open(curp.mp, thisarg);
1.118 schwarze 569: if (fd != -1) {
1.149 schwarze 570: if (use_pager) {
1.212 schwarze 571: use_pager = 0;
1.149 schwarze 572: tag_files = tag_init();
1.230 espie 573: if (tag_files != NULL)
574: tag_files->tagname = conf.output.tag;
1.149 schwarze 575: }
1.118 schwarze 576:
1.215 schwarze 577: if (resp == NULL || resp->form == FORM_SRC)
578: parse(&curp, fd, thisarg);
1.208 schwarze 579: else
1.231 schwarze 580: passthrough(fd, conf.output.synopsisonly);
1.205 schwarze 581:
582: if (ferror(stdout)) {
583: if (tag_files != NULL) {
1.231 schwarze 584: mandoc_msg(MANDOCERR_WRITE, 0, 0,
585: "%s: %s", tag_files->ofn,
586: strerror(errno));
1.205 schwarze 587: tag_unlink();
588: tag_files = NULL;
589: } else
1.231 schwarze 590: mandoc_msg(MANDOCERR_WRITE, 0, 0,
591: "%s", strerror(errno));
1.205 schwarze 592: break;
593: }
1.118 schwarze 594:
1.179 schwarze 595: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
596: if (curp.outdata == NULL)
597: outdata_alloc(&curp);
1.173 schwarze 598: terminal_sepline(curp.outdata);
1.179 schwarze 599: }
1.217 schwarze 600: } else
1.231 schwarze 601: mandoc_msg(resp == NULL ? MANDOCERR_BADARG_BAD :
602: MANDOCERR_OPEN, 0, 0, "%s", strerror(errno));
603:
604: mandoc_msg_setinfilename(NULL);
1.100 schwarze 605:
1.215 schwarze 606: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.27 schwarze 607: break;
1.116 schwarze 608:
1.118 schwarze 609: if (resp != NULL)
610: resp++;
611: else
612: argv++;
613: if (--argc)
614: mparse_reset(curp.mp);
1.1 kristaps 615: }
1.208 schwarze 616: if (startdir != -1) {
617: (void)fchdir(startdir);
618: close(startdir);
619: }
1.1 kristaps 620:
1.160 schwarze 621: if (curp.outdata != NULL) {
622: switch (curp.outtype) {
623: case OUTT_HTML:
624: html_free(curp.outdata);
625: break;
626: case OUTT_UTF8:
627: case OUTT_LOCALE:
628: case OUTT_ASCII:
629: ascii_free(curp.outdata);
630: break;
631: case OUTT_PDF:
632: case OUTT_PS:
633: pspdf_free(curp.outdata);
634: break;
635: default:
636: break;
637: }
1.158 schwarze 638: }
1.197 schwarze 639: mandoc_xr_free();
1.102 schwarze 640: mparse_free(curp.mp);
1.155 schwarze 641: mchars_free();
1.95 schwarze 642:
643: out:
644: if (search.argmode != ARG_FILE) {
1.134 schwarze 645: manconf_free(&conf);
1.95 schwarze 646: mansearch_free(res, sz);
647: }
1.196 schwarze 648: free(curp.os_s);
1.1 kristaps 649:
1.149 schwarze 650: if (tag_files != NULL) {
1.130 schwarze 651: fclose(stdout);
1.144 schwarze 652: tag_write();
1.236 ! schwarze 653: run_pager(tag_files);
1.144 schwarze 654: tag_unlink();
1.233 schwarze 655: } else if (curp.outtype != OUTT_LINT &&
656: (search.argmode == ARG_FILE || sz > 0))
1.232 schwarze 657: mandoc_msg_summary();
658:
1.215 schwarze 659: return (int)mandoc_msg_getrc();
1.1 kristaps 660: }
661:
1.20 schwarze 662: static void
1.95 schwarze 663: usage(enum argmode argmode)
1.1 kristaps 664: {
1.95 schwarze 665: switch (argmode) {
666: case ARG_FILE:
1.190 schwarze 667: fputs("usage: mandoc [-ac] [-I os=name] "
668: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.133 schwarze 669: "\t [-T output] [-W level] [file ...]\n", stderr);
1.95 schwarze 670: break;
671: case ARG_NAME:
1.190 schwarze 672: fputs("usage: man [-acfhklw] [-C file] [-M path] "
673: "[-m path] [-S subsection]\n"
674: "\t [[-s] section] name ...\n", stderr);
1.95 schwarze 675: break;
676: case ARG_WORD:
1.190 schwarze 677: fputs("usage: whatis [-afk] [-C file] "
1.96 schwarze 678: "[-M path] [-m path] [-O outkey] [-S arch]\n"
679: "\t [-s section] name ...\n", stderr);
1.95 schwarze 680: break;
681: case ARG_EXPR:
1.190 schwarze 682: fputs("usage: apropos [-afk] [-C file] "
1.96 schwarze 683: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.95 schwarze 684: "\t [-s section] expression ...\n", stderr);
685: break;
686: }
1.47 schwarze 687: exit((int)MANDOCLEVEL_BADARG);
1.119 schwarze 688: }
689:
690: static int
691: fs_lookup(const struct manpaths *paths, size_t ipath,
692: const char *sec, const char *arch, const char *name,
693: struct manpage **res, size_t *ressz)
694: {
1.228 schwarze 695: struct stat sb;
1.127 schwarze 696: glob_t globinfo;
1.119 schwarze 697: struct manpage *page;
698: char *file;
1.177 schwarze 699: int globres;
700: enum form form;
1.119 schwarze 701:
1.127 schwarze 702: form = FORM_SRC;
1.119 schwarze 703: mandoc_asprintf(&file, "%s/man%s/%s.%s",
704: paths->paths[ipath], sec, name, sec);
1.228 schwarze 705: if (stat(file, &sb) != -1)
1.119 schwarze 706: goto found;
707: free(file);
708:
709: mandoc_asprintf(&file, "%s/cat%s/%s.0",
710: paths->paths[ipath], sec, name);
1.228 schwarze 711: if (stat(file, &sb) != -1) {
1.119 schwarze 712: form = FORM_CAT;
713: goto found;
714: }
715: free(file);
716:
717: if (arch != NULL) {
718: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
719: paths->paths[ipath], sec, arch, name, sec);
1.228 schwarze 720: if (stat(file, &sb) != -1)
1.119 schwarze 721: goto found;
722: free(file);
723: }
1.127 schwarze 724:
1.145 schwarze 725: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.127 schwarze 726: paths->paths[ipath], sec, name);
727: globres = glob(file, 0, NULL, &globinfo);
728: if (globres != 0 && globres != GLOB_NOMATCH)
1.231 schwarze 729: mandoc_msg(MANDOCERR_GLOB, 0, 0,
730: "%s: %s", file, strerror(errno));
1.127 schwarze 731: free(file);
732: if (globres == 0)
733: file = mandoc_strdup(*globinfo.gl_pathv);
734: globfree(&globinfo);
1.228 schwarze 735: if (globres == 0) {
736: if (stat(file, &sb) != -1)
737: goto found;
738: free(file);
739: }
1.199 schwarze 740: if (res != NULL || ipath + 1 != paths->sz)
1.231 schwarze 741: return -1;
1.119 schwarze 742:
1.199 schwarze 743: mandoc_asprintf(&file, "%s.%s", name, sec);
1.228 schwarze 744: globres = stat(file, &sb);
1.199 schwarze 745: free(file);
1.231 schwarze 746: return globres;
1.199 schwarze 747:
1.119 schwarze 748: found:
1.235 schwarze 749: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
750: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.199 schwarze 751: if (res == NULL) {
752: free(file);
1.231 schwarze 753: return 0;
1.199 schwarze 754: }
1.231 schwarze 755: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.119 schwarze 756: page = *res + (*ressz - 1);
757: page->file = file;
758: page->names = NULL;
759: page->output = NULL;
1.225 schwarze 760: page->bits = NAME_FILE & NAME_MASK;
1.119 schwarze 761: page->ipath = ipath;
762: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
763: page->form = form;
1.231 schwarze 764: return 0;
1.119 schwarze 765: }
766:
1.198 schwarze 767: static int
1.119 schwarze 768: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
769: int argc, char **argv, struct manpage **res, size_t *ressz)
770: {
771: const char *const sections[] =
1.171 schwarze 772: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.119 schwarze 773: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
774:
775: size_t ipath, isec, lastsz;
776:
777: assert(cfg->argmode == ARG_NAME);
778:
1.198 schwarze 779: if (res != NULL)
780: *res = NULL;
1.119 schwarze 781: *ressz = lastsz = 0;
782: while (argc) {
783: for (ipath = 0; ipath < paths->sz; ipath++) {
784: if (cfg->sec != NULL) {
785: if (fs_lookup(paths, ipath, cfg->sec,
1.231 schwarze 786: cfg->arch, *argv, res, ressz) != -1 &&
1.119 schwarze 787: cfg->firstmatch)
1.231 schwarze 788: return 0;
1.119 schwarze 789: } else for (isec = 0; isec < nsec; isec++)
790: if (fs_lookup(paths, ipath, sections[isec],
1.231 schwarze 791: cfg->arch, *argv, res, ressz) != -1 &&
1.119 schwarze 792: cfg->firstmatch)
1.231 schwarze 793: return 0;
1.119 schwarze 794: }
1.208 schwarze 795: if (res != NULL && *ressz == lastsz &&
1.210 schwarze 796: strchr(*argv, '/') == NULL) {
1.223 schwarze 797: if (cfg->arch != NULL &&
1.235 schwarze 798: arch_valid(cfg->arch, OSENUM) == 0)
1.223 schwarze 799: warnx("Unknown architecture \"%s\".",
800: cfg->arch);
801: else if (cfg->sec == NULL)
1.210 schwarze 802: warnx("No entry for %s in the manual.",
803: *argv);
804: else
805: warnx("No entry for %s in section %s "
806: "of the manual.", *argv, cfg->sec);
807: }
1.119 schwarze 808: lastsz = *ressz;
809: argv++;
810: argc--;
811: }
1.231 schwarze 812: return -1;
1.1 kristaps 813: }
814:
1.27 schwarze 815: static void
1.132 schwarze 816: parse(struct curparse *curp, int fd, const char *file)
1.52 schwarze 817: {
1.218 schwarze 818: struct roff_meta *meta;
1.52 schwarze 819:
1.76 schwarze 820: /* Begin by parsing the file itself. */
1.52 schwarze 821:
1.76 schwarze 822: assert(file);
1.170 florian 823: assert(fd >= 0);
1.52 schwarze 824:
1.215 schwarze 825: mparse_readfd(curp->mp, fd, file);
1.168 schwarze 826: if (fd != STDIN_FILENO)
827: close(fd);
1.1 kristaps 828:
1.51 schwarze 829: /*
1.76 schwarze 830: * With -Wstop and warnings or errors of at least the requested
831: * level, do not produce output.
1.51 schwarze 832: */
833:
1.215 schwarze 834: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.132 schwarze 835: return;
1.51 schwarze 836:
1.179 schwarze 837: if (curp->outdata == NULL)
838: outdata_alloc(curp);
1.222 schwarze 839: else if (curp->outtype == OUTT_HTML)
840: html_reset(curp);
1.51 schwarze 841:
1.218 schwarze 842: mandoc_xr_reset();
843: meta = mparse_result(curp->mp);
1.158 schwarze 844:
845: /* Execute the out device, if it exists. */
846:
1.218 schwarze 847: if (meta->macroset == MACROSET_MDOC) {
1.51 schwarze 848: switch (curp->outtype) {
1.90 schwarze 849: case OUTT_HTML:
1.218 schwarze 850: html_mdoc(curp->outdata, meta);
1.51 schwarze 851: break;
1.90 schwarze 852: case OUTT_TREE:
1.218 schwarze 853: tree_mdoc(curp->outdata, meta);
1.51 schwarze 854: break;
1.90 schwarze 855: case OUTT_MAN:
1.218 schwarze 856: man_mdoc(curp->outdata, meta);
1.78 schwarze 857: break;
1.90 schwarze 858: case OUTT_PDF:
859: case OUTT_ASCII:
860: case OUTT_UTF8:
861: case OUTT_LOCALE:
862: case OUTT_PS:
1.218 schwarze 863: terminal_mdoc(curp->outdata, meta);
1.158 schwarze 864: break;
1.188 schwarze 865: case OUTT_MARKDOWN:
1.218 schwarze 866: markdown_mdoc(curp->outdata, meta);
1.188 schwarze 867: break;
1.158 schwarze 868: default:
869: break;
870: }
871: }
1.218 schwarze 872: if (meta->macroset == MACROSET_MAN) {
1.158 schwarze 873: switch (curp->outtype) {
874: case OUTT_HTML:
1.218 schwarze 875: html_man(curp->outdata, meta);
1.158 schwarze 876: break;
877: case OUTT_TREE:
1.218 schwarze 878: tree_man(curp->outdata, meta);
1.158 schwarze 879: break;
880: case OUTT_MAN:
1.211 schwarze 881: mparse_copy(curp->mp);
1.158 schwarze 882: break;
883: case OUTT_PDF:
884: case OUTT_ASCII:
885: case OUTT_UTF8:
886: case OUTT_LOCALE:
887: case OUTT_PS:
1.218 schwarze 888: terminal_man(curp->outdata, meta);
1.51 schwarze 889: break;
890: default:
891: break;
892: }
1.179 schwarze 893: }
1.215 schwarze 894: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
895: check_xr();
1.197 schwarze 896: }
897:
898: static void
1.215 schwarze 899: check_xr(void)
1.197 schwarze 900: {
901: static struct manpaths paths;
902: struct mansearch search;
903: struct mandoc_xr *xr;
904: size_t sz;
905:
906: if (paths.sz == 0)
907: manpath_base(&paths);
908:
909: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.200 schwarze 910: if (xr->line == -1)
911: continue;
1.197 schwarze 912: search.arch = NULL;
913: search.sec = xr->sec;
914: search.outkey = NULL;
915: search.argmode = ARG_NAME;
916: search.firstmatch = 1;
917: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.198 schwarze 918: continue;
1.231 schwarze 919: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz) != -1)
1.197 schwarze 920: continue;
1.201 schwarze 921: if (xr->count == 1)
1.216 schwarze 922: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
923: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.201 schwarze 924: else
1.216 schwarze 925: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
926: xr->pos + 1, "Xr %s %s (%d times)",
1.201 schwarze 927: xr->name, xr->sec, xr->count);
1.197 schwarze 928: }
1.179 schwarze 929: }
930:
931: static void
932: outdata_alloc(struct curparse *curp)
933: {
934: switch (curp->outtype) {
935: case OUTT_HTML:
936: curp->outdata = html_alloc(curp->outopts);
937: break;
938: case OUTT_UTF8:
939: curp->outdata = utf8_alloc(curp->outopts);
940: break;
941: case OUTT_LOCALE:
942: curp->outdata = locale_alloc(curp->outopts);
943: break;
944: case OUTT_ASCII:
945: curp->outdata = ascii_alloc(curp->outopts);
946: break;
947: case OUTT_PDF:
948: curp->outdata = pdf_alloc(curp->outopts);
949: break;
950: case OUTT_PS:
951: curp->outdata = ps_alloc(curp->outopts);
952: break;
953: default:
954: break;
1.51 schwarze 955: }
1.1 kristaps 956: }
957:
1.132 schwarze 958: static void
1.231 schwarze 959: passthrough(int fd, int synopsis_only)
1.95 schwarze 960: {
1.105 schwarze 961: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
962: const char synr[] = "SYNOPSIS";
963:
964: FILE *stream;
1.164 schwarze 965: char *line, *cp;
966: size_t linesz;
1.180 schwarze 967: ssize_t len, written;
1.231 schwarze 968: int lno, print;
1.116 schwarze 969:
1.231 schwarze 970: stream = NULL;
1.164 schwarze 971: line = NULL;
972: linesz = 0;
1.105 schwarze 973:
1.180 schwarze 974: if (fflush(stdout) == EOF) {
1.231 schwarze 975: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
976: goto done;
1.180 schwarze 977: }
1.105 schwarze 978: if ((stream = fdopen(fd, "r")) == NULL) {
979: close(fd);
1.231 schwarze 980: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
981: goto done;
1.105 schwarze 982: }
1.95 schwarze 983:
1.231 schwarze 984: lno = print = 0;
1.180 schwarze 985: while ((len = getline(&line, &linesz, stream)) != -1) {
1.231 schwarze 986: lno++;
1.164 schwarze 987: cp = line;
1.105 schwarze 988: if (synopsis_only) {
989: if (print) {
1.164 schwarze 990: if ( ! isspace((unsigned char)*cp))
1.105 schwarze 991: goto done;
1.180 schwarze 992: while (isspace((unsigned char)*cp)) {
1.164 schwarze 993: cp++;
1.180 schwarze 994: len--;
995: }
1.105 schwarze 996: } else {
1.164 schwarze 997: if (strcmp(cp, synb) == 0 ||
998: strcmp(cp, synr) == 0)
1.105 schwarze 999: print = 1;
1000: continue;
1001: }
1002: }
1.180 schwarze 1003: for (; len > 0; len -= written) {
1.231 schwarze 1004: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1005: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1006: "%s", strerror(errno));
1007: goto done;
1008: }
1.164 schwarze 1009: }
1.105 schwarze 1010: }
1.231 schwarze 1011: if (ferror(stream))
1012: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.101 schwarze 1013:
1.105 schwarze 1014: done:
1.164 schwarze 1015: free(line);
1.231 schwarze 1016: if (stream != NULL)
1017: fclose(stream);
1.1 kristaps 1018: }
1019:
1020: static int
1.45 schwarze 1021: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1022: {
1.10 schwarze 1023: char *v, *o;
1.196 schwarze 1024: const char *toks[11];
1.1 kristaps 1025:
1.45 schwarze 1026: toks[0] = "stop";
1027: toks[1] = "all";
1.196 schwarze 1028: toks[2] = "base";
1029: toks[3] = "style";
1030: toks[4] = "warning";
1031: toks[5] = "error";
1032: toks[6] = "unsupp";
1033: toks[7] = "fatal";
1034: toks[8] = "openbsd";
1035: toks[9] = "netbsd";
1036: toks[10] = NULL;
1.1 kristaps 1037:
1.10 schwarze 1038: while (*arg) {
1039: o = arg;
1.176 schwarze 1040: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.90 schwarze 1041: case 0:
1.45 schwarze 1042: curp->wstop = 1;
1.1 kristaps 1043: break;
1.90 schwarze 1044: case 1:
1045: case 2:
1.215 schwarze 1046: mandoc_msg_setmin(MANDOCERR_BASE);
1.193 schwarze 1047: break;
1048: case 3:
1.215 schwarze 1049: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1050: break;
1.193 schwarze 1051: case 4:
1.215 schwarze 1052: mandoc_msg_setmin(MANDOCERR_WARNING);
1.1 kristaps 1053: break;
1.193 schwarze 1054: case 5:
1.215 schwarze 1055: mandoc_msg_setmin(MANDOCERR_ERROR);
1.123 schwarze 1056: break;
1.193 schwarze 1057: case 6:
1.215 schwarze 1058: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.196 schwarze 1059: break;
1060: case 7:
1.231 schwarze 1061: mandoc_msg_setmin(MANDOCERR_BADARG);
1.196 schwarze 1062: break;
1063: case 8:
1.215 schwarze 1064: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1065: curp->os_e = MANDOC_OS_OPENBSD;
1066: break;
1067: case 9:
1.215 schwarze 1068: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1069: curp->os_e = MANDOC_OS_NETBSD;
1.19 schwarze 1070: break;
1.1 kristaps 1071: default:
1.231 schwarze 1072: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1073: return -1;
1.1 kristaps 1074: }
1.10 schwarze 1075: }
1.231 schwarze 1076: return 0;
1.236 ! schwarze 1077: }
! 1078:
! 1079: /*
! 1080: * Wait until moved to the foreground,
! 1081: * then fork the pager and wait for the user to close it.
! 1082: */
! 1083: static void
! 1084: run_pager(struct tag_files *tag_files)
! 1085: {
! 1086: int signum, status;
! 1087: pid_t man_pgid, tc_pgid;
! 1088: pid_t pager_pid, wait_pid;
! 1089:
! 1090: man_pgid = getpgid(0);
! 1091: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
! 1092: man_pgid;
! 1093: pager_pid = 0;
! 1094: signum = SIGSTOP;
! 1095:
! 1096: for (;;) {
! 1097: /* Stop here until moved to the foreground. */
! 1098:
! 1099: tc_pgid = tcgetpgrp(tag_files->ofd);
! 1100: if (tc_pgid != man_pgid) {
! 1101: if (tc_pgid == pager_pid) {
! 1102: (void)tcsetpgrp(tag_files->ofd, man_pgid);
! 1103: if (signum == SIGTTIN)
! 1104: continue;
! 1105: } else
! 1106: tag_files->tcpgid = tc_pgid;
! 1107: kill(0, signum);
! 1108: continue;
! 1109: }
! 1110:
! 1111: /* Once in the foreground, activate the pager. */
! 1112:
! 1113: if (pager_pid) {
! 1114: (void)tcsetpgrp(tag_files->ofd, pager_pid);
! 1115: kill(pager_pid, SIGCONT);
! 1116: } else
! 1117: pager_pid = spawn_pager(tag_files);
! 1118:
! 1119: /* Wait for the pager to stop or exit. */
! 1120:
! 1121: while ((wait_pid = waitpid(pager_pid, &status,
! 1122: WUNTRACED)) == -1 && errno == EINTR)
! 1123: continue;
! 1124:
! 1125: if (wait_pid == -1) {
! 1126: mandoc_msg(MANDOCERR_WAIT, 0, 0,
! 1127: "%s", strerror(errno));
! 1128: break;
! 1129: }
! 1130: if (!WIFSTOPPED(status))
! 1131: break;
! 1132:
! 1133: signum = WSTOPSIG(status);
! 1134: }
1.95 schwarze 1135: }
1136:
1.130 schwarze 1137: static pid_t
1.149 schwarze 1138: spawn_pager(struct tag_files *tag_files)
1.95 schwarze 1139: {
1.172 schwarze 1140: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.95 schwarze 1141: #define MAX_PAGER_ARGS 16
1142: char *argv[MAX_PAGER_ARGS];
1143: const char *pager;
1144: char *cp;
1.144 schwarze 1145: size_t cmdlen;
1.212 schwarze 1146: int argc, use_ofn;
1.130 schwarze 1147: pid_t pager_pid;
1.95 schwarze 1148:
1.144 schwarze 1149: pager = getenv("MANPAGER");
1150: if (pager == NULL || *pager == '\0')
1151: pager = getenv("PAGER");
1152: if (pager == NULL || *pager == '\0')
1153: pager = "more -s";
1154: cp = mandoc_strdup(pager);
1155:
1156: /*
1157: * Parse the pager command into words.
1158: * Intentionally do not do anything fancy here.
1159: */
1160:
1161: argc = 0;
1.212 schwarze 1162: while (argc + 5 < MAX_PAGER_ARGS) {
1.144 schwarze 1163: argv[argc++] = cp;
1164: cp = strchr(cp, ' ');
1165: if (cp == NULL)
1166: break;
1167: *cp++ = '\0';
1168: while (*cp == ' ')
1169: cp++;
1170: if (*cp == '\0')
1171: break;
1172: }
1173:
1.149 schwarze 1174: /* For more(1) and less(1), use the tag file. */
1.144 schwarze 1175:
1.212 schwarze 1176: use_ofn = 1;
1.234 schwarze 1177: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.144 schwarze 1178: cp = argv[0] + cmdlen - 4;
1.149 schwarze 1179: if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) {
1180: argv[argc++] = mandoc_strdup("-T");
1181: argv[argc++] = tag_files->tfn;
1.212 schwarze 1182: if (tag_files->tagname != NULL) {
1183: argv[argc++] = mandoc_strdup("-t");
1184: argv[argc++] = tag_files->tagname;
1185: use_ofn = 0;
1186: }
1.149 schwarze 1187: }
1.144 schwarze 1188: }
1.212 schwarze 1189: if (use_ofn)
1190: argv[argc++] = tag_files->ofn;
1.144 schwarze 1191: argv[argc] = NULL;
1192:
1.130 schwarze 1193: switch (pager_pid = fork()) {
1.95 schwarze 1194: case -1:
1.231 schwarze 1195: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1196: exit(mandoc_msg_getrc());
1.95 schwarze 1197: case 0:
1.129 schwarze 1198: break;
1199: default:
1.165 schwarze 1200: (void)setpgid(pager_pid, 0);
1.182 schwarze 1201: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.231 schwarze 1202: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1203: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1204: "%s", strerror(errno));
1205: exit(mandoc_msg_getrc());
1206: }
1.166 schwarze 1207: tag_files->pager_pid = pager_pid;
1.150 schwarze 1208: return pager_pid;
1.95 schwarze 1209: }
1210:
1.129 schwarze 1211: /* The child process becomes the pager. */
1.95 schwarze 1212:
1.231 schwarze 1213: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1214: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1215: _exit(mandoc_msg_getrc());
1216: }
1.149 schwarze 1217: close(tag_files->ofd);
1.206 tb 1218: assert(tag_files->tfd == -1);
1.172 schwarze 1219:
1220: /* Do not start the pager before controlling the terminal. */
1221:
1.182 schwarze 1222: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.172 schwarze 1223: nanosleep(&timeout, NULL);
1224:
1.95 schwarze 1225: execvp(argv[0], argv);
1.231 schwarze 1226: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1227: _exit(mandoc_msg_getrc());
1.30 schwarze 1228: }
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