Annotation of src/usr.bin/mandoc/main.c, Revision 1.235
1.235 ! schwarze 1: /* $OpenBSD: main.c,v 1.234 2019/07/19 20:25:21 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);
1.149 schwarze 104: static pid_t spawn_pager(struct tag_files *);
1.184 schwarze 105: static void usage(enum argmode) __attribute__((__noreturn__));
1.45 schwarze 106: static int woptions(struct curparse *, char *);
1.1 kristaps 107:
1.95 schwarze 108: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.110 schwarze 109: static char help_arg[] = "help";
110: static char *help_argv[] = {help_arg, NULL};
1.1 kristaps 111:
1.90 schwarze 112:
1.1 kristaps 113: int
114: main(int argc, char *argv[])
115: {
1.134 schwarze 116: struct manconf conf;
1.186 schwarze 117: struct mansearch search;
1.1 kristaps 118: struct curparse curp;
1.207 schwarze 119: struct winsize ws;
1.149 schwarze 120: struct tag_files *tag_files;
1.186 schwarze 121: struct manpage *res, *resp;
122: const char *progname, *sec, *thisarg;
123: char *conf_file, *defpaths, *auxpaths;
1.219 schwarze 124: char *oarg, *tagarg;
1.113 schwarze 125: unsigned char *uc;
1.227 schwarze 126: size_t i, sz, ssz;
1.135 schwarze 127: int prio, best_prio;
1.95 schwarze 128: enum outmode outmode;
1.208 schwarze 129: int fd, startdir;
1.95 schwarze 130: int show_usage;
1.87 schwarze 131: int options;
1.149 schwarze 132: int use_pager;
1.166 schwarze 133: int status, signum;
1.95 schwarze 134: int c;
1.166 schwarze 135: pid_t pager_pid, tc_pgid, man_pgid, pid;
1.1 kristaps 136:
1.162 schwarze 137: progname = getprogname();
1.220 schwarze 138: mandoc_msg_setoutfile(stderr);
1.162 schwarze 139: if (strncmp(progname, "mandocdb", 8) == 0 ||
1.235 ! schwarze 140: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.150 schwarze 141: return mandocdb(argc, argv);
1.19 schwarze 142:
1.231 schwarze 143: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
144: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
145: return mandoc_msg_getrc();
146: }
1.154 schwarze 147:
1.95 schwarze 148: /* Search options. */
149:
1.134 schwarze 150: memset(&conf, 0, sizeof(conf));
1.111 schwarze 151: conf_file = defpaths = NULL;
152: auxpaths = NULL;
1.95 schwarze 153:
154: memset(&search, 0, sizeof(struct mansearch));
155: search.outkey = "Nd";
1.186 schwarze 156: oarg = NULL;
1.95 schwarze 157:
1.235 ! schwarze 158: if (strcmp(progname, BINM_MAN) == 0)
1.95 schwarze 159: search.argmode = ARG_NAME;
1.235 ! schwarze 160: else if (strcmp(progname, BINM_APROPOS) == 0)
1.95 schwarze 161: search.argmode = ARG_EXPR;
1.235 ! schwarze 162: else if (strcmp(progname, BINM_WHATIS) == 0)
1.95 schwarze 163: search.argmode = ARG_WORD;
1.162 schwarze 164: else if (strncmp(progname, "help", 4) == 0)
1.110 schwarze 165: search.argmode = ARG_NAME;
1.95 schwarze 166: else
167: search.argmode = ARG_FILE;
168:
169: /* Parser and formatter options. */
170:
1.19 schwarze 171: memset(&curp, 0, sizeof(struct curparse));
1.109 schwarze 172: curp.outtype = OUTT_LOCALE;
1.135 schwarze 173: curp.outopts = &conf.output;
1.103 schwarze 174: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.1 kristaps 175:
1.149 schwarze 176: use_pager = 1;
177: tag_files = NULL;
1.95 schwarze 178: show_usage = 0;
179: outmode = OUTMODE_DEF;
180:
1.192 schwarze 181: while ((c = getopt(argc, argv,
182: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
183: if (c == 'i' && search.argmode == ARG_EXPR) {
184: optind--;
185: break;
186: }
1.1 kristaps 187: switch (c) {
1.95 schwarze 188: case 'a':
189: outmode = OUTMODE_ALL;
190: break;
191: case 'C':
192: conf_file = optarg;
193: break;
194: case 'c':
1.149 schwarze 195: use_pager = 0;
1.95 schwarze 196: break;
197: case 'f':
198: search.argmode = ARG_WORD;
199: break;
1.98 schwarze 200: case 'h':
1.135 schwarze 201: conf.output.synopsisonly = 1;
1.149 schwarze 202: use_pager = 0;
1.98 schwarze 203: outmode = OUTMODE_ALL;
204: break;
1.90 schwarze 205: case 'I':
1.231 schwarze 206: if (strncmp(optarg, "os=", 3) != 0) {
207: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
208: "-I %s", optarg);
209: return mandoc_msg_getrc();
1.83 schwarze 210: }
1.196 schwarze 211: if (curp.os_s != NULL) {
1.231 schwarze 212: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
213: "-I %s", optarg);
214: return mandoc_msg_getrc();
1.83 schwarze 215: }
1.196 schwarze 216: curp.os_s = mandoc_strdup(optarg + 3);
1.95 schwarze 217: break;
1.103 schwarze 218: case 'K':
1.231 schwarze 219: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
220: if (strcmp(optarg, "utf-8") == 0)
221: options |= MPARSE_UTF8;
222: else if (strcmp(optarg, "iso-8859-1") == 0)
223: options |= MPARSE_LATIN1;
224: else if (strcmp(optarg, "us-ascii") != 0) {
225: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
226: "-K %s", optarg);
227: return mandoc_msg_getrc();
228: }
1.103 schwarze 229: break;
1.95 schwarze 230: case 'k':
231: search.argmode = ARG_EXPR;
232: break;
1.96 schwarze 233: case 'l':
234: search.argmode = ARG_FILE;
235: outmode = OUTMODE_ALL;
236: break;
1.95 schwarze 237: case 'M':
238: defpaths = optarg;
239: break;
1.90 schwarze 240: case 'm':
1.95 schwarze 241: auxpaths = optarg;
1.1 kristaps 242: break;
1.90 schwarze 243: case 'O':
1.186 schwarze 244: oarg = optarg;
1.17 schwarze 245: break;
1.95 schwarze 246: case 'S':
247: search.arch = optarg;
248: break;
249: case 's':
250: search.sec = optarg;
251: break;
1.90 schwarze 252: case 'T':
1.231 schwarze 253: if (strcmp(optarg, "ascii") == 0)
254: curp.outtype = OUTT_ASCII;
255: else if (strcmp(optarg, "lint") == 0) {
256: curp.outtype = OUTT_LINT;
257: mandoc_msg_setoutfile(stdout);
258: mandoc_msg_setmin(MANDOCERR_BASE);
259: } else if (strcmp(optarg, "tree") == 0)
260: curp.outtype = OUTT_TREE;
261: else if (strcmp(optarg, "man") == 0)
262: curp.outtype = OUTT_MAN;
263: else if (strcmp(optarg, "html") == 0)
264: curp.outtype = OUTT_HTML;
265: else if (strcmp(optarg, "markdown") == 0)
266: curp.outtype = OUTT_MARKDOWN;
267: else if (strcmp(optarg, "utf8") == 0)
268: curp.outtype = OUTT_UTF8;
269: else if (strcmp(optarg, "locale") == 0)
270: curp.outtype = OUTT_LOCALE;
271: else if (strcmp(optarg, "ps") == 0)
272: curp.outtype = OUTT_PS;
273: else if (strcmp(optarg, "pdf") == 0)
274: curp.outtype = OUTT_PDF;
275: else {
276: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
277: "-T %s", optarg);
278: return mandoc_msg_getrc();
279: }
1.1 kristaps 280: break;
1.90 schwarze 281: case 'W':
1.231 schwarze 282: if (woptions(&curp, optarg) == -1)
283: return mandoc_msg_getrc();
1.1 kristaps 284: break;
1.95 schwarze 285: case 'w':
286: outmode = OUTMODE_FLN;
287: break;
1.1 kristaps 288: default:
1.95 schwarze 289: show_usage = 1;
290: break;
291: }
292: }
293:
294: if (show_usage)
295: usage(search.argmode);
296:
297: /* Postprocess options. */
298:
299: if (outmode == OUTMODE_DEF) {
300: switch (search.argmode) {
301: case ARG_FILE:
302: outmode = OUTMODE_ALL;
1.149 schwarze 303: use_pager = 0;
1.95 schwarze 304: break;
305: case ARG_NAME:
306: outmode = OUTMODE_ONE;
307: break;
308: default:
309: outmode = OUTMODE_LST;
310: break;
1.186 schwarze 311: }
312: }
313:
314: if (oarg != NULL) {
315: if (outmode == OUTMODE_LST)
316: search.outkey = oarg;
317: else {
318: while (oarg != NULL) {
319: if (manconf_output(&conf.output,
1.229 schwarze 320: strsep(&oarg, ","), 0) == -1)
1.231 schwarze 321: return mandoc_msg_getrc();
1.186 schwarze 322: }
1.95 schwarze 323: }
324: }
325:
1.218 schwarze 326: if (curp.outtype != OUTT_TREE || !curp.outopts->noval)
327: options |= MPARSE_VALIDATE;
328:
1.151 schwarze 329: if (outmode == OUTMODE_FLN ||
330: outmode == OUTMODE_LST ||
331: !isatty(STDOUT_FILENO))
332: use_pager = 0;
1.207 schwarze 333:
334: if (use_pager &&
335: (conf.output.width == 0 || conf.output.indent == 0) &&
1.209 schwarze 336: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
337: ws.ws_col > 1) {
1.207 schwarze 338: if (conf.output.width == 0 && ws.ws_col < 79)
339: conf.output.width = ws.ws_col - 1;
340: if (conf.output.indent == 0 && ws.ws_col < 66)
341: conf.output.indent = 3;
342: }
1.151 schwarze 343:
1.231 schwarze 344: if (use_pager == 0) {
345: if (pledge("stdio rpath", NULL) == -1) {
346: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
347: "%s", strerror(errno));
348: return mandoc_msg_getrc();
349: }
350: }
1.154 schwarze 351:
1.95 schwarze 352: /* Parse arguments. */
353:
1.124 schwarze 354: if (argc > 0) {
355: argc -= optind;
356: argv += optind;
357: }
1.95 schwarze 358: resp = NULL;
359:
1.110 schwarze 360: /*
361: * Quirks for help(1)
362: * and for a man(1) section argument without -s.
363: */
364:
365: if (search.argmode == ARG_NAME) {
1.162 schwarze 366: if (*progname == 'h') {
1.110 schwarze 367: if (argc == 0) {
368: argv = help_argv;
369: argc = 1;
370: }
1.117 schwarze 371: } else if (argc > 1 &&
1.128 schwarze 372: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.113 schwarze 373: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.226 schwarze 374: isalpha(uc[1]))) ||
1.113 schwarze 375: (uc[0] == 'n' && uc[1] == '\0'))) {
1.128 schwarze 376: search.sec = (char *)uc;
1.110 schwarze 377: argv++;
378: argc--;
379: }
1.122 schwarze 380: if (search.arch == NULL)
381: search.arch = getenv("MACHINE");
382: if (search.arch == NULL)
383: search.arch = MACHINE;
1.95 schwarze 384: }
385:
1.219 schwarze 386: /*
387: * Use the first argument for -O tag in addition to
388: * using it as a search term for man(1) or apropos(1).
389: */
390:
391: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
392: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
393: strchr(*argv, '=') : NULL;
394: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
395: }
396:
1.95 schwarze 397: /* man(1), whatis(1), apropos(1) */
398:
399: if (search.argmode != ARG_FILE) {
1.107 schwarze 400: if (search.argmode == ARG_NAME &&
401: outmode == OUTMODE_ONE)
402: search.firstmatch = 1;
1.95 schwarze 403:
404: /* Access the mandoc database. */
405:
1.134 schwarze 406: manconf_parse(&conf, conf_file, defpaths, auxpaths);
407: if ( ! mansearch(&search, &conf.manpath,
408: argc, argv, &res, &sz))
1.95 schwarze 409: usage(search.argmode);
1.119 schwarze 410:
1.208 schwarze 411: if (sz == 0 && search.argmode == ARG_NAME)
1.231 schwarze 412: (void)fs_search(&search, &conf.manpath,
1.208 schwarze 413: argc, argv, &res, &sz);
414:
415: if (search.argmode == ARG_NAME) {
416: for (c = 0; c < argc; c++) {
417: if (strchr(argv[c], '/') == NULL)
418: continue;
419: if (access(argv[c], R_OK) == -1) {
1.231 schwarze 420: mandoc_msg_setinfilename(argv[c]);
421: mandoc_msg(MANDOCERR_BADARG_BAD,
422: 0, 0, "%s", strerror(errno));
423: mandoc_msg_setinfilename(NULL);
1.208 schwarze 424: continue;
425: }
426: res = mandoc_reallocarray(res,
427: sz + 1, sizeof(*res));
428: res[sz].file = mandoc_strdup(argv[c]);
429: res[sz].names = NULL;
430: res[sz].output = NULL;
1.225 schwarze 431: res[sz].bits = 0;
1.208 schwarze 432: res[sz].ipath = SIZE_MAX;
433: res[sz].sec = 10;
434: res[sz].form = FORM_SRC;
435: sz++;
436: }
1.142 schwarze 437: }
1.95 schwarze 438:
439: if (sz == 0) {
1.208 schwarze 440: if (search.argmode != ARG_NAME)
441: warnx("nothing appropriate");
1.215 schwarze 442: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.95 schwarze 443: goto out;
444: }
445:
446: /*
447: * For standard man(1) and -a output mode,
448: * prepare for copying filename pointers
449: * into the program parameter array.
450: */
451:
452: if (outmode == OUTMODE_ONE) {
453: argc = 1;
1.227 schwarze 454: best_prio = 40;
1.95 schwarze 455: } else if (outmode == OUTMODE_ALL)
456: argc = (int)sz;
457:
458: /* Iterate all matching manuals. */
459:
1.119 schwarze 460: resp = res;
1.95 schwarze 461: for (i = 0; i < sz; i++) {
462: if (outmode == OUTMODE_FLN)
463: puts(res[i].file);
464: else if (outmode == OUTMODE_LST)
465: printf("%s - %s\n", res[i].names,
466: res[i].output == NULL ? "" :
467: res[i].output);
468: else if (outmode == OUTMODE_ONE) {
469: /* Search for the best section. */
1.171 schwarze 470: sec = res[i].file;
471: sec += strcspn(sec, "123456789");
472: if (sec[0] == '\0')
1.227 schwarze 473: continue; /* No section at all. */
1.171 schwarze 474: prio = sec_prios[sec[0] - '1'];
1.227 schwarze 475: if (search.sec != NULL) {
476: ssz = strlen(search.sec);
477: if (strncmp(sec, search.sec, ssz) == 0)
478: sec += ssz;
479: } else
480: sec++; /* Prefer without suffix. */
481: if (*sec != '/')
482: prio += 10; /* Wrong dir name. */
483: if (search.sec != NULL &&
484: (strlen(sec) <= ssz + 3 ||
485: strcmp(sec + strlen(sec) - ssz,
486: search.sec) != 0))
487: prio += 20; /* Wrong file ext. */
1.95 schwarze 488: if (prio >= best_prio)
489: continue;
490: best_prio = prio;
491: resp = res + i;
492: }
1.1 kristaps 493: }
494:
1.95 schwarze 495: /*
496: * For man(1), -a and -i output mode, fall through
497: * to the main mandoc(1) code iterating files
498: * and running the parsers on each of them.
499: */
500:
501: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
502: goto out;
503: }
504:
505: /* mandoc(1) */
1.157 schwarze 506:
1.167 schwarze 507: if (use_pager) {
1.231 schwarze 508: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
509: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
510: "%s", strerror(errno));
511: return mandoc_msg_getrc();
512: }
1.167 schwarze 513: } else {
1.231 schwarze 514: if (pledge("stdio rpath", NULL) == -1) {
515: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
516: "%s", strerror(errno));
517: return mandoc_msg_getrc();
518: }
1.167 schwarze 519: }
1.95 schwarze 520:
1.231 schwarze 521: if (search.argmode == ARG_FILE && auxpaths != NULL) {
522: if (strcmp(auxpaths, "doc") == 0)
523: options |= MPARSE_MDOC;
524: else if (strcmp(auxpaths, "an") == 0)
525: options |= MPARSE_MAN;
526: }
1.146 schwarze 527:
1.155 schwarze 528: mchars_alloc();
1.215 schwarze 529: curp.mp = mparse_alloc(options, curp.os_e, curp.os_s);
1.76 schwarze 530:
1.124 schwarze 531: if (argc < 1) {
1.219 schwarze 532: if (use_pager) {
1.149 schwarze 533: tag_files = tag_init();
1.230 espie 534: if (tag_files != NULL)
535: tag_files->tagname = conf.output.tag;
1.219 schwarze 536: }
1.215 schwarze 537: thisarg = "<stdin>";
538: mandoc_msg_setinfilename(thisarg);
539: parse(&curp, STDIN_FILENO, thisarg);
540: mandoc_msg_setinfilename(NULL);
1.118 schwarze 541: }
1.27 schwarze 542:
1.208 schwarze 543: /*
544: * Remember the original working directory, if possible.
545: * This will be needed if some names on the command line
546: * are page names and some are relative file names.
547: * Do not error out if the current directory is not
548: * readable: Maybe it won't be needed after all.
549: */
550: startdir = open(".", O_RDONLY | O_DIRECTORY);
551:
1.124 schwarze 552: while (argc > 0) {
1.208 schwarze 553:
554: /*
555: * Changing directories is not needed in ARG_FILE mode.
556: * Do it on a best-effort basis. Even in case of
557: * failure, some functionality may still work.
558: */
559: if (resp != NULL) {
560: if (resp->ipath != SIZE_MAX)
561: (void)chdir(conf.manpath.paths[resp->ipath]);
562: else if (startdir != -1)
563: (void)fchdir(startdir);
1.215 schwarze 564: thisarg = resp->file;
565: } else
566: thisarg = *argv;
1.208 schwarze 567:
1.231 schwarze 568: mandoc_msg_setinfilename(thisarg);
1.215 schwarze 569: fd = mparse_open(curp.mp, thisarg);
1.118 schwarze 570: if (fd != -1) {
1.149 schwarze 571: if (use_pager) {
1.212 schwarze 572: use_pager = 0;
1.149 schwarze 573: tag_files = tag_init();
1.230 espie 574: if (tag_files != NULL)
575: tag_files->tagname = conf.output.tag;
1.149 schwarze 576: }
1.118 schwarze 577:
1.215 schwarze 578: if (resp == NULL || resp->form == FORM_SRC)
579: parse(&curp, fd, thisarg);
1.208 schwarze 580: else
1.231 schwarze 581: passthrough(fd, conf.output.synopsisonly);
1.205 schwarze 582:
583: if (ferror(stdout)) {
584: if (tag_files != NULL) {
1.231 schwarze 585: mandoc_msg(MANDOCERR_WRITE, 0, 0,
586: "%s: %s", tag_files->ofn,
587: strerror(errno));
1.205 schwarze 588: tag_unlink();
589: tag_files = NULL;
590: } else
1.231 schwarze 591: mandoc_msg(MANDOCERR_WRITE, 0, 0,
592: "%s", strerror(errno));
1.205 schwarze 593: break;
594: }
1.118 schwarze 595:
1.179 schwarze 596: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
597: if (curp.outdata == NULL)
598: outdata_alloc(&curp);
1.173 schwarze 599: terminal_sepline(curp.outdata);
1.179 schwarze 600: }
1.217 schwarze 601: } else
1.231 schwarze 602: mandoc_msg(resp == NULL ? MANDOCERR_BADARG_BAD :
603: MANDOCERR_OPEN, 0, 0, "%s", strerror(errno));
604:
605: mandoc_msg_setinfilename(NULL);
1.100 schwarze 606:
1.215 schwarze 607: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.27 schwarze 608: break;
1.116 schwarze 609:
1.118 schwarze 610: if (resp != NULL)
611: resp++;
612: else
613: argv++;
614: if (--argc)
615: mparse_reset(curp.mp);
1.1 kristaps 616: }
1.208 schwarze 617: if (startdir != -1) {
618: (void)fchdir(startdir);
619: close(startdir);
620: }
1.1 kristaps 621:
1.160 schwarze 622: if (curp.outdata != NULL) {
623: switch (curp.outtype) {
624: case OUTT_HTML:
625: html_free(curp.outdata);
626: break;
627: case OUTT_UTF8:
628: case OUTT_LOCALE:
629: case OUTT_ASCII:
630: ascii_free(curp.outdata);
631: break;
632: case OUTT_PDF:
633: case OUTT_PS:
634: pspdf_free(curp.outdata);
635: break;
636: default:
637: break;
638: }
1.158 schwarze 639: }
1.197 schwarze 640: mandoc_xr_free();
1.102 schwarze 641: mparse_free(curp.mp);
1.155 schwarze 642: mchars_free();
1.95 schwarze 643:
644: out:
645: if (search.argmode != ARG_FILE) {
1.134 schwarze 646: manconf_free(&conf);
1.95 schwarze 647: mansearch_free(res, sz);
648: }
649:
1.196 schwarze 650: free(curp.os_s);
1.1 kristaps 651:
1.129 schwarze 652: /*
1.149 schwarze 653: * When using a pager, finish writing both temporary files,
654: * fork it, wait for the user to close it, and clean up.
1.129 schwarze 655: */
656:
1.149 schwarze 657: if (tag_files != NULL) {
1.130 schwarze 658: fclose(stdout);
1.144 schwarze 659: tag_write();
1.166 schwarze 660: man_pgid = getpgid(0);
661: tag_files->tcpgid = man_pgid == getpid() ?
662: getpgid(getppid()) : man_pgid;
663: pager_pid = 0;
664: signum = SIGSTOP;
1.165 schwarze 665: for (;;) {
1.166 schwarze 666:
667: /* Stop here until moved to the foreground. */
668:
1.182 schwarze 669: tc_pgid = tcgetpgrp(tag_files->ofd);
1.166 schwarze 670: if (tc_pgid != man_pgid) {
671: if (tc_pgid == pager_pid) {
1.182 schwarze 672: (void)tcsetpgrp(tag_files->ofd,
1.166 schwarze 673: man_pgid);
674: if (signum == SIGTTIN)
675: continue;
676: } else
677: tag_files->tcpgid = tc_pgid;
678: kill(0, signum);
679: continue;
680: }
681:
682: /* Once in the foreground, activate the pager. */
683:
684: if (pager_pid) {
1.182 schwarze 685: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.166 schwarze 686: kill(pager_pid, SIGCONT);
687: } else
688: pager_pid = spawn_pager(tag_files);
689:
690: /* Wait for the pager to stop or exit. */
691:
692: while ((pid = waitpid(pager_pid, &status,
693: WUNTRACED)) == -1 && errno == EINTR)
694: continue;
695:
696: if (pid == -1) {
1.231 schwarze 697: mandoc_msg(MANDOCERR_WAIT, 0, 0,
698: "%s", strerror(errno));
1.165 schwarze 699: break;
700: }
701: if (!WIFSTOPPED(status))
702: break;
703:
1.166 schwarze 704: signum = WSTOPSIG(status);
1.165 schwarze 705: }
1.144 schwarze 706: tag_unlink();
1.233 schwarze 707: } else if (curp.outtype != OUTT_LINT &&
708: (search.argmode == ARG_FILE || sz > 0))
1.232 schwarze 709: mandoc_msg_summary();
710:
1.215 schwarze 711: return (int)mandoc_msg_getrc();
1.1 kristaps 712: }
713:
1.20 schwarze 714: static void
1.95 schwarze 715: usage(enum argmode argmode)
1.1 kristaps 716: {
1.95 schwarze 717: switch (argmode) {
718: case ARG_FILE:
1.190 schwarze 719: fputs("usage: mandoc [-ac] [-I os=name] "
720: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.133 schwarze 721: "\t [-T output] [-W level] [file ...]\n", stderr);
1.95 schwarze 722: break;
723: case ARG_NAME:
1.190 schwarze 724: fputs("usage: man [-acfhklw] [-C file] [-M path] "
725: "[-m path] [-S subsection]\n"
726: "\t [[-s] section] name ...\n", stderr);
1.95 schwarze 727: break;
728: case ARG_WORD:
1.190 schwarze 729: fputs("usage: whatis [-afk] [-C file] "
1.96 schwarze 730: "[-M path] [-m path] [-O outkey] [-S arch]\n"
731: "\t [-s section] name ...\n", stderr);
1.95 schwarze 732: break;
733: case ARG_EXPR:
1.190 schwarze 734: fputs("usage: apropos [-afk] [-C file] "
1.96 schwarze 735: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.95 schwarze 736: "\t [-s section] expression ...\n", stderr);
737: break;
738: }
1.47 schwarze 739: exit((int)MANDOCLEVEL_BADARG);
1.119 schwarze 740: }
741:
742: static int
743: fs_lookup(const struct manpaths *paths, size_t ipath,
744: const char *sec, const char *arch, const char *name,
745: struct manpage **res, size_t *ressz)
746: {
1.228 schwarze 747: struct stat sb;
1.127 schwarze 748: glob_t globinfo;
1.119 schwarze 749: struct manpage *page;
750: char *file;
1.177 schwarze 751: int globres;
752: enum form form;
1.119 schwarze 753:
1.127 schwarze 754: form = FORM_SRC;
1.119 schwarze 755: mandoc_asprintf(&file, "%s/man%s/%s.%s",
756: paths->paths[ipath], sec, name, sec);
1.228 schwarze 757: if (stat(file, &sb) != -1)
1.119 schwarze 758: goto found;
759: free(file);
760:
761: mandoc_asprintf(&file, "%s/cat%s/%s.0",
762: paths->paths[ipath], sec, name);
1.228 schwarze 763: if (stat(file, &sb) != -1) {
1.119 schwarze 764: form = FORM_CAT;
765: goto found;
766: }
767: free(file);
768:
769: if (arch != NULL) {
770: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
771: paths->paths[ipath], sec, arch, name, sec);
1.228 schwarze 772: if (stat(file, &sb) != -1)
1.119 schwarze 773: goto found;
774: free(file);
775: }
1.127 schwarze 776:
1.145 schwarze 777: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.127 schwarze 778: paths->paths[ipath], sec, name);
779: globres = glob(file, 0, NULL, &globinfo);
780: if (globres != 0 && globres != GLOB_NOMATCH)
1.231 schwarze 781: mandoc_msg(MANDOCERR_GLOB, 0, 0,
782: "%s: %s", file, strerror(errno));
1.127 schwarze 783: free(file);
784: if (globres == 0)
785: file = mandoc_strdup(*globinfo.gl_pathv);
786: globfree(&globinfo);
1.228 schwarze 787: if (globres == 0) {
788: if (stat(file, &sb) != -1)
789: goto found;
790: free(file);
791: }
1.199 schwarze 792: if (res != NULL || ipath + 1 != paths->sz)
1.231 schwarze 793: return -1;
1.119 schwarze 794:
1.199 schwarze 795: mandoc_asprintf(&file, "%s.%s", name, sec);
1.228 schwarze 796: globres = stat(file, &sb);
1.199 schwarze 797: free(file);
1.231 schwarze 798: return globres;
1.199 schwarze 799:
1.119 schwarze 800: found:
1.235 ! schwarze 801: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
! 802: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.199 schwarze 803: if (res == NULL) {
804: free(file);
1.231 schwarze 805: return 0;
1.199 schwarze 806: }
1.231 schwarze 807: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.119 schwarze 808: page = *res + (*ressz - 1);
809: page->file = file;
810: page->names = NULL;
811: page->output = NULL;
1.225 schwarze 812: page->bits = NAME_FILE & NAME_MASK;
1.119 schwarze 813: page->ipath = ipath;
814: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
815: page->form = form;
1.231 schwarze 816: return 0;
1.119 schwarze 817: }
818:
1.198 schwarze 819: static int
1.119 schwarze 820: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
821: int argc, char **argv, struct manpage **res, size_t *ressz)
822: {
823: const char *const sections[] =
1.171 schwarze 824: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.119 schwarze 825: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
826:
827: size_t ipath, isec, lastsz;
828:
829: assert(cfg->argmode == ARG_NAME);
830:
1.198 schwarze 831: if (res != NULL)
832: *res = NULL;
1.119 schwarze 833: *ressz = lastsz = 0;
834: while (argc) {
835: for (ipath = 0; ipath < paths->sz; ipath++) {
836: if (cfg->sec != NULL) {
837: if (fs_lookup(paths, ipath, cfg->sec,
1.231 schwarze 838: cfg->arch, *argv, res, ressz) != -1 &&
1.119 schwarze 839: cfg->firstmatch)
1.231 schwarze 840: return 0;
1.119 schwarze 841: } else for (isec = 0; isec < nsec; isec++)
842: if (fs_lookup(paths, ipath, sections[isec],
1.231 schwarze 843: cfg->arch, *argv, res, ressz) != -1 &&
1.119 schwarze 844: cfg->firstmatch)
1.231 schwarze 845: return 0;
1.119 schwarze 846: }
1.208 schwarze 847: if (res != NULL && *ressz == lastsz &&
1.210 schwarze 848: strchr(*argv, '/') == NULL) {
1.223 schwarze 849: if (cfg->arch != NULL &&
1.235 ! schwarze 850: arch_valid(cfg->arch, OSENUM) == 0)
1.223 schwarze 851: warnx("Unknown architecture \"%s\".",
852: cfg->arch);
853: else if (cfg->sec == NULL)
1.210 schwarze 854: warnx("No entry for %s in the manual.",
855: *argv);
856: else
857: warnx("No entry for %s in section %s "
858: "of the manual.", *argv, cfg->sec);
859: }
1.119 schwarze 860: lastsz = *ressz;
861: argv++;
862: argc--;
863: }
1.231 schwarze 864: return -1;
1.1 kristaps 865: }
866:
1.27 schwarze 867: static void
1.132 schwarze 868: parse(struct curparse *curp, int fd, const char *file)
1.52 schwarze 869: {
1.218 schwarze 870: struct roff_meta *meta;
1.52 schwarze 871:
1.76 schwarze 872: /* Begin by parsing the file itself. */
1.52 schwarze 873:
1.76 schwarze 874: assert(file);
1.170 florian 875: assert(fd >= 0);
1.52 schwarze 876:
1.215 schwarze 877: mparse_readfd(curp->mp, fd, file);
1.168 schwarze 878: if (fd != STDIN_FILENO)
879: close(fd);
1.1 kristaps 880:
1.51 schwarze 881: /*
1.76 schwarze 882: * With -Wstop and warnings or errors of at least the requested
883: * level, do not produce output.
1.51 schwarze 884: */
885:
1.215 schwarze 886: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.132 schwarze 887: return;
1.51 schwarze 888:
1.179 schwarze 889: if (curp->outdata == NULL)
890: outdata_alloc(curp);
1.222 schwarze 891: else if (curp->outtype == OUTT_HTML)
892: html_reset(curp);
1.51 schwarze 893:
1.218 schwarze 894: mandoc_xr_reset();
895: meta = mparse_result(curp->mp);
1.158 schwarze 896:
897: /* Execute the out device, if it exists. */
898:
1.218 schwarze 899: if (meta->macroset == MACROSET_MDOC) {
1.51 schwarze 900: switch (curp->outtype) {
1.90 schwarze 901: case OUTT_HTML:
1.218 schwarze 902: html_mdoc(curp->outdata, meta);
1.51 schwarze 903: break;
1.90 schwarze 904: case OUTT_TREE:
1.218 schwarze 905: tree_mdoc(curp->outdata, meta);
1.51 schwarze 906: break;
1.90 schwarze 907: case OUTT_MAN:
1.218 schwarze 908: man_mdoc(curp->outdata, meta);
1.78 schwarze 909: break;
1.90 schwarze 910: case OUTT_PDF:
911: case OUTT_ASCII:
912: case OUTT_UTF8:
913: case OUTT_LOCALE:
914: case OUTT_PS:
1.218 schwarze 915: terminal_mdoc(curp->outdata, meta);
1.158 schwarze 916: break;
1.188 schwarze 917: case OUTT_MARKDOWN:
1.218 schwarze 918: markdown_mdoc(curp->outdata, meta);
1.188 schwarze 919: break;
1.158 schwarze 920: default:
921: break;
922: }
923: }
1.218 schwarze 924: if (meta->macroset == MACROSET_MAN) {
1.158 schwarze 925: switch (curp->outtype) {
926: case OUTT_HTML:
1.218 schwarze 927: html_man(curp->outdata, meta);
1.158 schwarze 928: break;
929: case OUTT_TREE:
1.218 schwarze 930: tree_man(curp->outdata, meta);
1.158 schwarze 931: break;
932: case OUTT_MAN:
1.211 schwarze 933: mparse_copy(curp->mp);
1.158 schwarze 934: break;
935: case OUTT_PDF:
936: case OUTT_ASCII:
937: case OUTT_UTF8:
938: case OUTT_LOCALE:
939: case OUTT_PS:
1.218 schwarze 940: terminal_man(curp->outdata, meta);
1.51 schwarze 941: break;
942: default:
943: break;
944: }
1.179 schwarze 945: }
1.215 schwarze 946: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
947: check_xr();
1.197 schwarze 948: }
949:
950: static void
1.215 schwarze 951: check_xr(void)
1.197 schwarze 952: {
953: static struct manpaths paths;
954: struct mansearch search;
955: struct mandoc_xr *xr;
956: size_t sz;
957:
958: if (paths.sz == 0)
959: manpath_base(&paths);
960:
961: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.200 schwarze 962: if (xr->line == -1)
963: continue;
1.197 schwarze 964: search.arch = NULL;
965: search.sec = xr->sec;
966: search.outkey = NULL;
967: search.argmode = ARG_NAME;
968: search.firstmatch = 1;
969: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.198 schwarze 970: continue;
1.231 schwarze 971: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz) != -1)
1.197 schwarze 972: continue;
1.201 schwarze 973: if (xr->count == 1)
1.216 schwarze 974: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
975: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.201 schwarze 976: else
1.216 schwarze 977: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
978: xr->pos + 1, "Xr %s %s (%d times)",
1.201 schwarze 979: xr->name, xr->sec, xr->count);
1.197 schwarze 980: }
1.179 schwarze 981: }
982:
983: static void
984: outdata_alloc(struct curparse *curp)
985: {
986: switch (curp->outtype) {
987: case OUTT_HTML:
988: curp->outdata = html_alloc(curp->outopts);
989: break;
990: case OUTT_UTF8:
991: curp->outdata = utf8_alloc(curp->outopts);
992: break;
993: case OUTT_LOCALE:
994: curp->outdata = locale_alloc(curp->outopts);
995: break;
996: case OUTT_ASCII:
997: curp->outdata = ascii_alloc(curp->outopts);
998: break;
999: case OUTT_PDF:
1000: curp->outdata = pdf_alloc(curp->outopts);
1001: break;
1002: case OUTT_PS:
1003: curp->outdata = ps_alloc(curp->outopts);
1004: break;
1005: default:
1006: break;
1.51 schwarze 1007: }
1.1 kristaps 1008: }
1009:
1.132 schwarze 1010: static void
1.231 schwarze 1011: passthrough(int fd, int synopsis_only)
1.95 schwarze 1012: {
1.105 schwarze 1013: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
1014: const char synr[] = "SYNOPSIS";
1015:
1016: FILE *stream;
1.164 schwarze 1017: char *line, *cp;
1018: size_t linesz;
1.180 schwarze 1019: ssize_t len, written;
1.231 schwarze 1020: int lno, print;
1.116 schwarze 1021:
1.231 schwarze 1022: stream = NULL;
1.164 schwarze 1023: line = NULL;
1024: linesz = 0;
1.105 schwarze 1025:
1.180 schwarze 1026: if (fflush(stdout) == EOF) {
1.231 schwarze 1027: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
1028: goto done;
1.180 schwarze 1029: }
1.105 schwarze 1030: if ((stream = fdopen(fd, "r")) == NULL) {
1031: close(fd);
1.231 schwarze 1032: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
1033: goto done;
1.105 schwarze 1034: }
1.95 schwarze 1035:
1.231 schwarze 1036: lno = print = 0;
1.180 schwarze 1037: while ((len = getline(&line, &linesz, stream)) != -1) {
1.231 schwarze 1038: lno++;
1.164 schwarze 1039: cp = line;
1.105 schwarze 1040: if (synopsis_only) {
1041: if (print) {
1.164 schwarze 1042: if ( ! isspace((unsigned char)*cp))
1.105 schwarze 1043: goto done;
1.180 schwarze 1044: while (isspace((unsigned char)*cp)) {
1.164 schwarze 1045: cp++;
1.180 schwarze 1046: len--;
1047: }
1.105 schwarze 1048: } else {
1.164 schwarze 1049: if (strcmp(cp, synb) == 0 ||
1050: strcmp(cp, synr) == 0)
1.105 schwarze 1051: print = 1;
1052: continue;
1053: }
1054: }
1.180 schwarze 1055: for (; len > 0; len -= written) {
1.231 schwarze 1056: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1057: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1058: "%s", strerror(errno));
1059: goto done;
1060: }
1.164 schwarze 1061: }
1.105 schwarze 1062: }
1.231 schwarze 1063: if (ferror(stream))
1064: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.101 schwarze 1065:
1.105 schwarze 1066: done:
1.164 schwarze 1067: free(line);
1.231 schwarze 1068: if (stream != NULL)
1069: fclose(stream);
1.1 kristaps 1070: }
1071:
1072: static int
1.45 schwarze 1073: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1074: {
1.10 schwarze 1075: char *v, *o;
1.196 schwarze 1076: const char *toks[11];
1.1 kristaps 1077:
1.45 schwarze 1078: toks[0] = "stop";
1079: toks[1] = "all";
1.196 schwarze 1080: toks[2] = "base";
1081: toks[3] = "style";
1082: toks[4] = "warning";
1083: toks[5] = "error";
1084: toks[6] = "unsupp";
1085: toks[7] = "fatal";
1086: toks[8] = "openbsd";
1087: toks[9] = "netbsd";
1088: toks[10] = NULL;
1.1 kristaps 1089:
1.10 schwarze 1090: while (*arg) {
1091: o = arg;
1.176 schwarze 1092: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.90 schwarze 1093: case 0:
1.45 schwarze 1094: curp->wstop = 1;
1.1 kristaps 1095: break;
1.90 schwarze 1096: case 1:
1097: case 2:
1.215 schwarze 1098: mandoc_msg_setmin(MANDOCERR_BASE);
1.193 schwarze 1099: break;
1100: case 3:
1.215 schwarze 1101: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1102: break;
1.193 schwarze 1103: case 4:
1.215 schwarze 1104: mandoc_msg_setmin(MANDOCERR_WARNING);
1.1 kristaps 1105: break;
1.193 schwarze 1106: case 5:
1.215 schwarze 1107: mandoc_msg_setmin(MANDOCERR_ERROR);
1.123 schwarze 1108: break;
1.193 schwarze 1109: case 6:
1.215 schwarze 1110: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.196 schwarze 1111: break;
1112: case 7:
1.231 schwarze 1113: mandoc_msg_setmin(MANDOCERR_BADARG);
1.196 schwarze 1114: break;
1115: case 8:
1.215 schwarze 1116: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1117: curp->os_e = MANDOC_OS_OPENBSD;
1118: break;
1119: case 9:
1.215 schwarze 1120: mandoc_msg_setmin(MANDOCERR_BASE);
1.196 schwarze 1121: curp->os_e = MANDOC_OS_NETBSD;
1.19 schwarze 1122: break;
1.1 kristaps 1123: default:
1.231 schwarze 1124: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1125: return -1;
1.1 kristaps 1126: }
1.10 schwarze 1127: }
1.231 schwarze 1128: return 0;
1.95 schwarze 1129: }
1130:
1.130 schwarze 1131: static pid_t
1.149 schwarze 1132: spawn_pager(struct tag_files *tag_files)
1.95 schwarze 1133: {
1.172 schwarze 1134: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.95 schwarze 1135: #define MAX_PAGER_ARGS 16
1136: char *argv[MAX_PAGER_ARGS];
1137: const char *pager;
1138: char *cp;
1.144 schwarze 1139: size_t cmdlen;
1.212 schwarze 1140: int argc, use_ofn;
1.130 schwarze 1141: pid_t pager_pid;
1.95 schwarze 1142:
1.144 schwarze 1143: pager = getenv("MANPAGER");
1144: if (pager == NULL || *pager == '\0')
1145: pager = getenv("PAGER");
1146: if (pager == NULL || *pager == '\0')
1147: pager = "more -s";
1148: cp = mandoc_strdup(pager);
1149:
1150: /*
1151: * Parse the pager command into words.
1152: * Intentionally do not do anything fancy here.
1153: */
1154:
1155: argc = 0;
1.212 schwarze 1156: while (argc + 5 < MAX_PAGER_ARGS) {
1.144 schwarze 1157: argv[argc++] = cp;
1158: cp = strchr(cp, ' ');
1159: if (cp == NULL)
1160: break;
1161: *cp++ = '\0';
1162: while (*cp == ' ')
1163: cp++;
1164: if (*cp == '\0')
1165: break;
1166: }
1167:
1.149 schwarze 1168: /* For more(1) and less(1), use the tag file. */
1.144 schwarze 1169:
1.212 schwarze 1170: use_ofn = 1;
1.234 schwarze 1171: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.144 schwarze 1172: cp = argv[0] + cmdlen - 4;
1.149 schwarze 1173: if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) {
1174: argv[argc++] = mandoc_strdup("-T");
1175: argv[argc++] = tag_files->tfn;
1.212 schwarze 1176: if (tag_files->tagname != NULL) {
1177: argv[argc++] = mandoc_strdup("-t");
1178: argv[argc++] = tag_files->tagname;
1179: use_ofn = 0;
1180: }
1.149 schwarze 1181: }
1.144 schwarze 1182: }
1.212 schwarze 1183: if (use_ofn)
1184: argv[argc++] = tag_files->ofn;
1.144 schwarze 1185: argv[argc] = NULL;
1186:
1.130 schwarze 1187: switch (pager_pid = fork()) {
1.95 schwarze 1188: case -1:
1.231 schwarze 1189: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1190: exit(mandoc_msg_getrc());
1.95 schwarze 1191: case 0:
1.129 schwarze 1192: break;
1193: default:
1.165 schwarze 1194: (void)setpgid(pager_pid, 0);
1.182 schwarze 1195: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.231 schwarze 1196: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1197: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1198: "%s", strerror(errno));
1199: exit(mandoc_msg_getrc());
1200: }
1.166 schwarze 1201: tag_files->pager_pid = pager_pid;
1.150 schwarze 1202: return pager_pid;
1.95 schwarze 1203: }
1204:
1.129 schwarze 1205: /* The child process becomes the pager. */
1.95 schwarze 1206:
1.231 schwarze 1207: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1208: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1209: _exit(mandoc_msg_getrc());
1210: }
1.149 schwarze 1211: close(tag_files->ofd);
1.206 tb 1212: assert(tag_files->tfd == -1);
1.172 schwarze 1213:
1214: /* Do not start the pager before controlling the terminal. */
1215:
1.182 schwarze 1216: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.172 schwarze 1217: nanosleep(&timeout, NULL);
1218:
1.95 schwarze 1219: execvp(argv[0], argv);
1.231 schwarze 1220: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1221: _exit(mandoc_msg_getrc());
1.30 schwarze 1222: }