Annotation of mandoc/main.c, Revision 1.308
1.308 ! schwarze 1: /* $Id: main.c,v 1.307 2018/08/09 17:30:36 schwarze Exp $ */
1.1 kristaps 2: /*
1.183 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.304 schwarze 4: * Copyright (c) 2010-2012, 2014-2018 Ingo Schwarze <schwarze@openbsd.org>
1.169 schwarze 5: * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
1.1 kristaps 6: *
7: * Permission to use, copy, modify, and distribute this software for any
1.25 kristaps 8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 10: *
1.229 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.25 kristaps 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.229 schwarze 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.25 kristaps 14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 18: */
1.58 kristaps 19: #include "config.h"
1.178 schwarze 20:
21: #include <sys/types.h>
1.304 schwarze 22: #include <sys/ioctl.h>
1.216 schwarze 23: #include <sys/param.h> /* MACHINE */
1.304 schwarze 24: #include <sys/termios.h>
1.224 schwarze 25: #include <sys/wait.h>
1.58 kristaps 26:
1.1 kristaps 27: #include <assert.h>
1.185 schwarze 28: #include <ctype.h>
1.256 schwarze 29: #if HAVE_ERR
1.247 schwarze 30: #include <err.h>
1.256 schwarze 31: #endif
1.258 schwarze 32: #include <errno.h>
1.186 schwarze 33: #include <fcntl.h>
1.222 schwarze 34: #include <glob.h>
1.269 kristaps 35: #if HAVE_SANDBOX_INIT
36: #include <sandbox.h>
37: #endif
1.226 schwarze 38: #include <signal.h>
1.1 kristaps 39: #include <stdio.h>
1.45 kristaps 40: #include <stdint.h>
1.1 kristaps 41: #include <stdlib.h>
42: #include <string.h>
1.265 schwarze 43: #include <time.h>
1.1 kristaps 44: #include <unistd.h>
45:
1.231 schwarze 46: #include "mandoc_aux.h"
1.71 kristaps 47: #include "mandoc.h"
1.294 schwarze 48: #include "mandoc_xr.h"
1.231 schwarze 49: #include "roff.h"
1.1 kristaps 50: #include "mdoc.h"
1.10 kristaps 51: #include "man.h"
1.239 schwarze 52: #include "tag.h"
1.231 schwarze 53: #include "main.h"
1.229 schwarze 54: #include "manconf.h"
1.180 schwarze 55: #include "mansearch.h"
1.16 kristaps 56:
1.181 schwarze 57: enum outmode {
58: OUTMODE_DEF = 0,
59: OUTMODE_FLN,
60: OUTMODE_LST,
61: OUTMODE_ALL,
62: OUTMODE_ONE
63: };
64:
1.19 kristaps 65: enum outt {
1.154 kristaps 66: OUTT_ASCII = 0, /* -Tascii */
1.162 kristaps 67: OUTT_LOCALE, /* -Tlocale */
1.163 kristaps 68: OUTT_UTF8, /* -Tutf8 */
1.154 kristaps 69: OUTT_TREE, /* -Ttree */
1.164 schwarze 70: OUTT_MAN, /* -Tman */
1.154 kristaps 71: OUTT_HTML, /* -Thtml */
1.285 schwarze 72: OUTT_MARKDOWN, /* -Tmarkdown */
1.154 kristaps 73: OUTT_LINT, /* -Tlint */
74: OUTT_PS, /* -Tps */
75: OUTT_PDF /* -Tpdf */
1.19 kristaps 76: };
77:
1.5 kristaps 78: struct curparse {
1.154 kristaps 79: struct mparse *mp;
1.293 schwarze 80: struct manoutput *outopts; /* output options */
81: void *outdata; /* data for output */
82: char *os_s; /* operating system for display */
1.148 kristaps 83: int wstop; /* stop after a file with a warning */
1.293 schwarze 84: enum mandocerr mmin; /* ignore messages below this */
85: enum mandoc_os os_e; /* check base system conventions */
1.173 schwarze 86: enum outt outtype; /* which output to use */
1.79 kristaps 87: };
1.270 schwarze 88:
89:
90: int mandocdb(int, char *[]);
1.79 kristaps 91:
1.294 schwarze 92: static void check_xr(const char *);
1.213 schwarze 93: static int fs_lookup(const struct manpaths *,
94: size_t ipath, const char *,
95: const char *, const char *,
96: struct manpage **, size_t *);
1.295 schwarze 97: static int fs_search(const struct mansearch *,
1.213 schwarze 98: const struct manpaths *, int, char**,
99: struct manpage **, size_t *);
1.194 schwarze 100: static int koptions(int *, char *);
1.286 schwarze 101: static void moptions(int *, char *);
1.155 kristaps 102: static void mmsg(enum mandocerr, enum mandoclevel,
103: const char *, int, int, const char *);
1.276 schwarze 104: static void outdata_alloc(struct curparse *);
1.227 schwarze 105: static void parse(struct curparse *, int, const char *);
106: static void passthrough(const char *, int, int);
1.244 schwarze 107: static pid_t spawn_pager(struct tag_files *);
1.66 kristaps 108: static int toptions(struct curparse *, char *);
1.283 schwarze 109: static void usage(enum argmode) __attribute__((__noreturn__));
1.103 schwarze 110: static int woptions(struct curparse *, char *);
1.1 kristaps 111:
1.182 schwarze 112: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.202 schwarze 113: static char help_arg[] = "help";
114: static char *help_argv[] = {help_arg, NULL};
1.226 schwarze 115: static enum mandoclevel rc;
1.300 schwarze 116: static FILE *mmsg_stream;
1.1 kristaps 117:
1.173 schwarze 118:
1.1 kristaps 119: int
120: main(int argc, char *argv[])
121: {
1.229 schwarze 122: struct manconf conf;
1.282 schwarze 123: struct mansearch search;
1.5 kristaps 124: struct curparse curp;
1.304 schwarze 125: struct winsize ws;
1.244 schwarze 126: struct tag_files *tag_files;
1.282 schwarze 127: struct manpage *res, *resp;
128: const char *progname, *sec, *thisarg;
129: char *conf_file, *defpaths, *auxpaths;
1.293 schwarze 130: char *oarg;
1.207 schwarze 131: unsigned char *uc;
1.264 schwarze 132: size_t i, sz;
1.230 schwarze 133: int prio, best_prio;
1.181 schwarze 134: enum outmode outmode;
1.305 schwarze 135: int fd, startdir;
1.180 schwarze 136: int show_usage;
1.170 schwarze 137: int options;
1.244 schwarze 138: int use_pager;
1.259 schwarze 139: int status, signum;
1.180 schwarze 140: int c;
1.259 schwarze 141: pid_t pager_pid, tc_pgid, man_pgid, pid;
1.1 kristaps 142:
1.254 schwarze 143: #if HAVE_PROGNAME
144: progname = getprogname();
145: #else
1.219 schwarze 146: if (argc < 1)
1.254 schwarze 147: progname = mandoc_strdup("mandoc");
148: else if ((progname = strrchr(argv[0], '/')) == NULL)
149: progname = argv[0];
1.54 kristaps 150: else
1.254 schwarze 151: ++progname;
152: setprogname(progname);
1.247 schwarze 153: #endif
1.203 schwarze 154:
1.254 schwarze 155: if (strncmp(progname, "mandocdb", 8) == 0 ||
156: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 157: return mandocdb(argc, argv);
1.179 schwarze 158:
1.255 schwarze 159: #if HAVE_PLEDGE
1.284 schwarze 160: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
1.255 schwarze 161: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.269 kristaps 162: #endif
163:
164: #if HAVE_SANDBOX_INIT
165: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
166: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 167: #endif
168:
1.180 schwarze 169: /* Search options. */
170:
1.229 schwarze 171: memset(&conf, 0, sizeof(conf));
1.205 schwarze 172: conf_file = defpaths = NULL;
173: auxpaths = NULL;
1.180 schwarze 174:
175: memset(&search, 0, sizeof(struct mansearch));
176: search.outkey = "Nd";
1.282 schwarze 177: oarg = NULL;
1.180 schwarze 178:
1.254 schwarze 179: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 180: search.argmode = ARG_NAME;
1.254 schwarze 181: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 182: search.argmode = ARG_EXPR;
1.254 schwarze 183: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 184: search.argmode = ARG_WORD;
1.254 schwarze 185: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 186: search.argmode = ARG_NAME;
1.180 schwarze 187: else
188: search.argmode = ARG_FILE;
189:
190: /* Parser and formatter options. */
1.54 kristaps 191:
1.51 kristaps 192: memset(&curp, 0, sizeof(struct curparse));
1.201 schwarze 193: curp.outtype = OUTT_LOCALE;
1.293 schwarze 194: curp.mmin = MANDOCERR_MAX;
1.230 schwarze 195: curp.outopts = &conf.output;
1.194 schwarze 196: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.300 schwarze 197: mmsg_stream = stderr;
1.19 kristaps 198:
1.244 schwarze 199: use_pager = 1;
200: tag_files = NULL;
1.180 schwarze 201: show_usage = 0;
1.181 schwarze 202: outmode = OUTMODE_DEF;
1.183 schwarze 203:
1.289 schwarze 204: while ((c = getopt(argc, argv,
205: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
206: if (c == 'i' && search.argmode == ARG_EXPR) {
207: optind--;
208: break;
209: }
1.1 kristaps 210: switch (c) {
1.181 schwarze 211: case 'a':
212: outmode = OUTMODE_ALL;
213: break;
1.180 schwarze 214: case 'C':
215: conf_file = optarg;
216: break;
1.183 schwarze 217: case 'c':
1.244 schwarze 218: use_pager = 0;
1.183 schwarze 219: break;
1.180 schwarze 220: case 'f':
221: search.argmode = ARG_WORD;
222: break;
1.190 schwarze 223: case 'h':
1.230 schwarze 224: conf.output.synopsisonly = 1;
1.244 schwarze 225: use_pager = 0;
1.190 schwarze 226: outmode = OUTMODE_ALL;
227: break;
1.173 schwarze 228: case 'I':
1.166 schwarze 229: if (strncmp(optarg, "os=", 3)) {
1.247 schwarze 230: warnx("-I %s: Bad argument", optarg);
1.245 schwarze 231: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 232: }
1.293 schwarze 233: if (curp.os_s != NULL) {
1.247 schwarze 234: warnx("-I %s: Duplicate argument", optarg);
1.245 schwarze 235: return (int)MANDOCLEVEL_BADARG;
1.166 schwarze 236: }
1.293 schwarze 237: curp.os_s = mandoc_strdup(optarg + 3);
1.181 schwarze 238: break;
1.194 schwarze 239: case 'K':
240: if ( ! koptions(&options, optarg))
1.245 schwarze 241: return (int)MANDOCLEVEL_BADARG;
1.194 schwarze 242: break;
1.180 schwarze 243: case 'k':
244: search.argmode = ARG_EXPR;
245: break;
1.188 schwarze 246: case 'l':
247: search.argmode = ARG_FILE;
248: outmode = OUTMODE_ALL;
249: break;
1.180 schwarze 250: case 'M':
251: defpaths = optarg;
252: break;
1.173 schwarze 253: case 'm':
1.180 schwarze 254: auxpaths = optarg;
1.10 kristaps 255: break;
1.173 schwarze 256: case 'O':
1.282 schwarze 257: oarg = optarg;
1.44 kristaps 258: break;
1.180 schwarze 259: case 'S':
260: search.arch = optarg;
261: break;
262: case 's':
263: search.sec = optarg;
264: break;
1.173 schwarze 265: case 'T':
1.60 kristaps 266: if ( ! toptions(&curp, optarg))
1.245 schwarze 267: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 268: break;
1.173 schwarze 269: case 'W':
1.103 schwarze 270: if ( ! woptions(&curp, optarg))
1.245 schwarze 271: return (int)MANDOCLEVEL_BADARG;
1.1 kristaps 272: break;
1.181 schwarze 273: case 'w':
274: outmode = OUTMODE_FLN;
275: break;
1.1 kristaps 276: default:
1.180 schwarze 277: show_usage = 1;
278: break;
1.1 kristaps 279: }
1.180 schwarze 280: }
281:
282: if (show_usage)
283: usage(search.argmode);
284:
1.185 schwarze 285: /* Postprocess options. */
286:
1.181 schwarze 287: if (outmode == OUTMODE_DEF) {
288: switch (search.argmode) {
289: case ARG_FILE:
290: outmode = OUTMODE_ALL;
1.244 schwarze 291: use_pager = 0;
1.181 schwarze 292: break;
293: case ARG_NAME:
294: outmode = OUTMODE_ONE;
295: break;
296: default:
297: outmode = OUTMODE_LST;
298: break;
1.282 schwarze 299: }
300: }
301:
302: if (oarg != NULL) {
303: if (outmode == OUTMODE_LST)
304: search.outkey = oarg;
305: else {
306: while (oarg != NULL) {
307: thisarg = oarg;
308: if (manconf_output(&conf.output,
309: strsep(&oarg, ","), 0) == 0)
310: continue;
311: warnx("-O %s: Bad argument", thisarg);
312: return (int)MANDOCLEVEL_BADARG;
313: }
1.181 schwarze 314: }
315: }
316:
1.246 schwarze 317: if (outmode == OUTMODE_FLN ||
318: outmode == OUTMODE_LST ||
319: !isatty(STDOUT_FILENO))
320: use_pager = 0;
1.304 schwarze 321:
322: if (use_pager &&
323: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 324: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
325: ws.ws_col > 1) {
1.304 schwarze 326: if (conf.output.width == 0 && ws.ws_col < 79)
327: conf.output.width = ws.ws_col - 1;
328: if (conf.output.indent == 0 && ws.ws_col < 66)
329: conf.output.indent = 3;
330: }
1.246 schwarze 331:
1.255 schwarze 332: #if HAVE_PLEDGE
1.260 schwarze 333: if (!use_pager)
1.284 schwarze 334: if (pledge("stdio rpath", NULL) == -1)
1.260 schwarze 335: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.255 schwarze 336: #endif
337:
1.185 schwarze 338: /* Parse arguments. */
339:
1.219 schwarze 340: if (argc > 0) {
341: argc -= optind;
342: argv += optind;
343: }
1.186 schwarze 344: resp = NULL;
1.185 schwarze 345:
1.202 schwarze 346: /*
347: * Quirks for help(1)
348: * and for a man(1) section argument without -s.
349: */
350:
351: if (search.argmode == ARG_NAME) {
1.254 schwarze 352: if (*progname == 'h') {
1.202 schwarze 353: if (argc == 0) {
354: argv = help_argv;
355: argc = 1;
356: }
1.211 schwarze 357: } else if (argc > 1 &&
1.223 kristaps 358: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 359: ((isdigit(uc[0]) && (uc[1] == '\0' ||
360: (isalpha(uc[1]) && uc[2] == '\0'))) ||
361: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 362: search.sec = (char *)uc;
1.202 schwarze 363: argv++;
364: argc--;
365: }
1.216 schwarze 366: if (search.arch == NULL)
367: search.arch = getenv("MACHINE");
1.223 kristaps 368: #ifdef MACHINE
1.216 schwarze 369: if (search.arch == NULL)
370: search.arch = MACHINE;
1.223 kristaps 371: #endif
1.185 schwarze 372: }
1.182 schwarze 373:
374: rc = MANDOCLEVEL_OK;
1.180 schwarze 375:
376: /* man(1), whatis(1), apropos(1) */
377:
378: if (search.argmode != ARG_FILE) {
1.199 schwarze 379: if (search.argmode == ARG_NAME &&
380: outmode == OUTMODE_ONE)
381: search.firstmatch = 1;
1.182 schwarze 382:
383: /* Access the mandoc database. */
384:
1.229 schwarze 385: manconf_parse(&conf, conf_file, defpaths, auxpaths);
386: if ( ! mansearch(&search, &conf.manpath,
387: argc, argv, &res, &sz))
1.180 schwarze 388: usage(search.argmode);
1.213 schwarze 389:
1.305 schwarze 390: if (sz == 0 && search.argmode == ARG_NAME)
391: fs_search(&search, &conf.manpath,
392: argc, argv, &res, &sz);
393:
394: if (search.argmode == ARG_NAME) {
395: for (c = 0; c < argc; c++) {
396: if (strchr(argv[c], '/') == NULL)
397: continue;
398: if (access(argv[c], R_OK) == -1) {
399: warn("%s", argv[c]);
400: continue;
401: }
402: res = mandoc_reallocarray(res,
403: sz + 1, sizeof(*res));
404: res[sz].file = mandoc_strdup(argv[c]);
405: res[sz].names = NULL;
406: res[sz].output = NULL;
407: res[sz].ipath = SIZE_MAX;
408: res[sz].bits = 0;
409: res[sz].sec = 10;
410: res[sz].form = FORM_SRC;
411: sz++;
412: }
1.237 schwarze 413: }
1.187 schwarze 414:
415: if (sz == 0) {
1.305 schwarze 416: if (search.argmode != ARG_NAME)
417: warnx("nothing appropriate");
1.187 schwarze 418: rc = MANDOCLEVEL_BADARG;
419: goto out;
420: }
1.182 schwarze 421:
422: /*
423: * For standard man(1) and -a output mode,
424: * prepare for copying filename pointers
425: * into the program parameter array.
426: */
427:
428: if (outmode == OUTMODE_ONE) {
429: argc = 1;
1.264 schwarze 430: best_prio = 20;
1.186 schwarze 431: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 432: argc = (int)sz;
433:
434: /* Iterate all matching manuals. */
435:
1.213 schwarze 436: resp = res;
1.181 schwarze 437: for (i = 0; i < sz; i++) {
438: if (outmode == OUTMODE_FLN)
439: puts(res[i].file);
1.182 schwarze 440: else if (outmode == OUTMODE_LST)
1.181 schwarze 441: printf("%s - %s\n", res[i].names,
442: res[i].output == NULL ? "" :
443: res[i].output);
1.186 schwarze 444: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 445: /* Search for the best section. */
1.264 schwarze 446: sec = res[i].file;
447: sec += strcspn(sec, "123456789");
448: if (sec[0] == '\0')
1.182 schwarze 449: continue;
1.264 schwarze 450: prio = sec_prios[sec[0] - '1'];
451: if (sec[1] != '/')
452: prio += 10;
1.182 schwarze 453: if (prio >= best_prio)
454: continue;
455: best_prio = prio;
1.186 schwarze 456: resp = res + i;
1.182 schwarze 457: }
1.181 schwarze 458: }
1.182 schwarze 459:
460: /*
461: * For man(1), -a and -i output mode, fall through
462: * to the main mandoc(1) code iterating files
463: * and running the parsers on each of them.
464: */
465:
466: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
467: goto out;
1.180 schwarze 468: }
469:
470: /* mandoc(1) */
471:
1.255 schwarze 472: #if HAVE_PLEDGE
1.260 schwarze 473: if (use_pager) {
474: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
475: err((int)MANDOCLEVEL_SYSERR, "pledge");
476: } else {
477: if (pledge("stdio rpath", NULL) == -1)
478: err((int)MANDOCLEVEL_SYSERR, "pledge");
479: }
1.255 schwarze 480: #endif
481:
1.286 schwarze 482: if (search.argmode == ARG_FILE)
483: moptions(&options, auxpaths);
1.241 schwarze 484:
1.249 schwarze 485: mchars_alloc();
1.293 schwarze 486: curp.mp = mparse_alloc(options, curp.mmin, mmsg,
487: curp.os_e, curp.os_s);
1.154 kristaps 488:
1.219 schwarze 489: if (argc < 1) {
1.244 schwarze 490: if (use_pager)
491: tag_files = tag_init();
1.227 schwarze 492: parse(&curp, STDIN_FILENO, "<stdin>");
1.212 schwarze 493: }
1.64 kristaps 494:
1.305 schwarze 495: /*
496: * Remember the original working directory, if possible.
497: * This will be needed if some names on the command line
498: * are page names and some are relative file names.
499: * Do not error out if the current directory is not
500: * readable: Maybe it won't be needed after all.
501: */
502: startdir = open(".", O_RDONLY | O_DIRECTORY);
503:
1.219 schwarze 504: while (argc > 0) {
1.305 schwarze 505:
506: /*
507: * Changing directories is not needed in ARG_FILE mode.
508: * Do it on a best-effort basis. Even in case of
509: * failure, some functionality may still work.
510: */
511: if (resp != NULL) {
512: if (resp->ipath != SIZE_MAX)
513: (void)chdir(conf.manpath.paths[resp->ipath]);
514: else if (startdir != -1)
515: (void)fchdir(startdir);
516: }
517:
1.262 schwarze 518: fd = mparse_open(curp.mp, resp != NULL ? resp->file : *argv);
1.212 schwarze 519: if (fd != -1) {
1.244 schwarze 520: if (use_pager) {
521: tag_files = tag_init();
522: use_pager = 0;
523: }
1.212 schwarze 524:
525: if (resp == NULL)
1.227 schwarze 526: parse(&curp, fd, *argv);
1.305 schwarze 527: else if (resp->form == FORM_SRC)
1.227 schwarze 528: parse(&curp, fd, resp->file);
1.305 schwarze 529: else
1.230 schwarze 530: passthrough(resp->file, fd,
531: conf.output.synopsisonly);
1.302 schwarze 532:
533: if (ferror(stdout)) {
534: if (tag_files != NULL) {
535: warn("%s", tag_files->ofn);
536: tag_unlink();
537: tag_files = NULL;
538: } else
539: warn("stdout");
540: rc = MANDOCLEVEL_SYSERR;
541: break;
542: }
1.212 schwarze 543:
1.276 schwarze 544: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
545: if (curp.outdata == NULL)
546: outdata_alloc(&curp);
1.267 schwarze 547: terminal_sepline(curp.outdata);
1.276 schwarze 548: }
1.262 schwarze 549: } else if (rc < MANDOCLEVEL_ERROR)
550: rc = MANDOCLEVEL_ERROR;
1.192 schwarze 551:
1.154 kristaps 552: if (MANDOCLEVEL_OK != rc && curp.wstop)
1.64 kristaps 553: break;
1.210 schwarze 554:
1.212 schwarze 555: if (resp != NULL)
556: resp++;
557: else
558: argv++;
559: if (--argc)
560: mparse_reset(curp.mp);
1.1 kristaps 561: }
1.305 schwarze 562: if (startdir != -1) {
563: (void)fchdir(startdir);
564: close(startdir);
565: }
1.1 kristaps 566:
1.252 schwarze 567: if (curp.outdata != NULL) {
568: switch (curp.outtype) {
569: case OUTT_HTML:
570: html_free(curp.outdata);
571: break;
572: case OUTT_UTF8:
573: case OUTT_LOCALE:
574: case OUTT_ASCII:
575: ascii_free(curp.outdata);
576: break;
577: case OUTT_PDF:
578: case OUTT_PS:
579: pspdf_free(curp.outdata);
580: break;
581: default:
582: break;
583: }
1.250 schwarze 584: }
1.294 schwarze 585: mandoc_xr_free();
1.195 schwarze 586: mparse_free(curp.mp);
1.249 schwarze 587: mchars_free();
1.182 schwarze 588:
589: out:
590: if (search.argmode != ARG_FILE) {
1.229 schwarze 591: manconf_free(&conf);
1.182 schwarze 592: mansearch_free(res, sz);
593: }
594:
1.293 schwarze 595: free(curp.os_s);
1.1 kristaps 596:
1.224 schwarze 597: /*
1.244 schwarze 598: * When using a pager, finish writing both temporary files,
599: * fork it, wait for the user to close it, and clean up.
1.224 schwarze 600: */
601:
1.244 schwarze 602: if (tag_files != NULL) {
1.225 schwarze 603: fclose(stdout);
1.239 schwarze 604: tag_write();
1.259 schwarze 605: man_pgid = getpgid(0);
606: tag_files->tcpgid = man_pgid == getpid() ?
607: getpgid(getppid()) : man_pgid;
608: pager_pid = 0;
609: signum = SIGSTOP;
1.258 schwarze 610: for (;;) {
1.259 schwarze 611:
612: /* Stop here until moved to the foreground. */
613:
1.279 schwarze 614: tc_pgid = tcgetpgrp(tag_files->ofd);
1.259 schwarze 615: if (tc_pgid != man_pgid) {
616: if (tc_pgid == pager_pid) {
1.279 schwarze 617: (void)tcsetpgrp(tag_files->ofd,
1.259 schwarze 618: man_pgid);
619: if (signum == SIGTTIN)
620: continue;
621: } else
622: tag_files->tcpgid = tc_pgid;
623: kill(0, signum);
624: continue;
625: }
626:
627: /* Once in the foreground, activate the pager. */
628:
629: if (pager_pid) {
1.279 schwarze 630: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.259 schwarze 631: kill(pager_pid, SIGCONT);
632: } else
633: pager_pid = spawn_pager(tag_files);
634:
635: /* Wait for the pager to stop or exit. */
636:
637: while ((pid = waitpid(pager_pid, &status,
638: WUNTRACED)) == -1 && errno == EINTR)
639: continue;
640:
641: if (pid == -1) {
1.258 schwarze 642: warn("wait");
643: rc = MANDOCLEVEL_SYSERR;
644: break;
645: }
646: if (!WIFSTOPPED(status))
647: break;
648:
1.259 schwarze 649: signum = WSTOPSIG(status);
1.258 schwarze 650: }
1.239 schwarze 651: tag_unlink();
1.225 schwarze 652: }
1.224 schwarze 653:
1.245 schwarze 654: return (int)rc;
1.1 kristaps 655: }
656:
1.55 kristaps 657: static void
1.180 schwarze 658: usage(enum argmode argmode)
1.1 kristaps 659: {
660:
1.180 schwarze 661: switch (argmode) {
662: case ARG_FILE:
1.287 schwarze 663: fputs("usage: mandoc [-ac] [-I os=name] "
664: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 665: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 666: break;
667: case ARG_NAME:
1.287 schwarze 668: fputs("usage: man [-acfhklw] [-C file] [-M path] "
669: "[-m path] [-S subsection]\n"
670: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 671: break;
672: case ARG_WORD:
1.287 schwarze 673: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 674: "[-M path] [-m path] [-O outkey] [-S arch]\n"
675: "\t [-s section] name ...\n", stderr);
1.180 schwarze 676: break;
677: case ARG_EXPR:
1.287 schwarze 678: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 679: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 680: "\t [-s section] expression ...\n", stderr);
681: break;
682: }
1.105 kristaps 683: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 684: }
1.213 schwarze 685:
686: static int
687: fs_lookup(const struct manpaths *paths, size_t ipath,
688: const char *sec, const char *arch, const char *name,
689: struct manpage **res, size_t *ressz)
690: {
1.222 schwarze 691: glob_t globinfo;
1.213 schwarze 692: struct manpage *page;
693: char *file;
1.274 schwarze 694: int globres;
695: enum form form;
1.213 schwarze 696:
1.222 schwarze 697: form = FORM_SRC;
1.213 schwarze 698: mandoc_asprintf(&file, "%s/man%s/%s.%s",
699: paths->paths[ipath], sec, name, sec);
1.222 schwarze 700: if (access(file, R_OK) != -1)
1.213 schwarze 701: goto found;
702: free(file);
703:
704: mandoc_asprintf(&file, "%s/cat%s/%s.0",
705: paths->paths[ipath], sec, name);
706: if (access(file, R_OK) != -1) {
707: form = FORM_CAT;
708: goto found;
709: }
710: free(file);
711:
712: if (arch != NULL) {
713: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
714: paths->paths[ipath], sec, arch, name, sec);
1.222 schwarze 715: if (access(file, R_OK) != -1)
1.213 schwarze 716: goto found;
717: free(file);
718: }
1.222 schwarze 719:
1.240 schwarze 720: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 721: paths->paths[ipath], sec, name);
722: globres = glob(file, 0, NULL, &globinfo);
723: if (globres != 0 && globres != GLOB_NOMATCH)
1.247 schwarze 724: warn("%s: glob", file);
1.222 schwarze 725: free(file);
726: if (globres == 0)
727: file = mandoc_strdup(*globinfo.gl_pathv);
728: globfree(&globinfo);
1.296 schwarze 729: if (globres == 0)
730: goto found;
731: if (res != NULL || ipath + 1 != paths->sz)
1.245 schwarze 732: return 0;
1.213 schwarze 733:
1.296 schwarze 734: mandoc_asprintf(&file, "%s.%s", name, sec);
735: globres = access(file, R_OK);
736: free(file);
737: return globres != -1;
738:
1.213 schwarze 739: found:
1.266 schwarze 740: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
741: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 742: if (res == NULL) {
743: free(file);
1.295 schwarze 744: return 1;
1.296 schwarze 745: }
1.213 schwarze 746: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
747: page = *res + (*ressz - 1);
748: page->file = file;
749: page->names = NULL;
750: page->output = NULL;
751: page->ipath = ipath;
752: page->bits = NAME_FILE & NAME_MASK;
753: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
754: page->form = form;
1.245 schwarze 755: return 1;
1.213 schwarze 756: }
757:
1.295 schwarze 758: static int
1.213 schwarze 759: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
760: int argc, char **argv, struct manpage **res, size_t *ressz)
761: {
762: const char *const sections[] =
1.264 schwarze 763: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 764: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
765:
766: size_t ipath, isec, lastsz;
767:
768: assert(cfg->argmode == ARG_NAME);
769:
1.295 schwarze 770: if (res != NULL)
771: *res = NULL;
1.213 schwarze 772: *ressz = lastsz = 0;
773: while (argc) {
774: for (ipath = 0; ipath < paths->sz; ipath++) {
775: if (cfg->sec != NULL) {
776: if (fs_lookup(paths, ipath, cfg->sec,
777: cfg->arch, *argv, res, ressz) &&
778: cfg->firstmatch)
1.295 schwarze 779: return 1;
1.213 schwarze 780: } else for (isec = 0; isec < nsec; isec++)
781: if (fs_lookup(paths, ipath, sections[isec],
782: cfg->arch, *argv, res, ressz) &&
783: cfg->firstmatch)
1.295 schwarze 784: return 1;
1.213 schwarze 785: }
1.305 schwarze 786: if (res != NULL && *ressz == lastsz &&
1.307 schwarze 787: strchr(*argv, '/') == NULL) {
788: if (cfg->sec == NULL)
789: warnx("No entry for %s in the manual.",
790: *argv);
791: else
792: warnx("No entry for %s in section %s "
793: "of the manual.", *argv, cfg->sec);
794: }
1.213 schwarze 795: lastsz = *ressz;
796: argv++;
797: argc--;
798: }
1.295 schwarze 799: return 0;
1.213 schwarze 800: }
1.68 joerg 801:
1.64 kristaps 802: static void
1.227 schwarze 803: parse(struct curparse *curp, int fd, const char *file)
1.1 kristaps 804: {
1.227 schwarze 805: enum mandoclevel rctmp;
1.234 schwarze 806: struct roff_man *man;
1.112 kristaps 807:
1.154 kristaps 808: /* Begin by parsing the file itself. */
1.112 kristaps 809:
1.154 kristaps 810: assert(file);
1.263 schwarze 811: assert(fd >= 0);
1.112 kristaps 812:
1.227 schwarze 813: rctmp = mparse_readfd(curp->mp, fd, file);
1.261 schwarze 814: if (fd != STDIN_FILENO)
815: close(fd);
1.227 schwarze 816: if (rc < rctmp)
817: rc = rctmp;
1.112 kristaps 818:
1.1 kristaps 819: /*
1.154 kristaps 820: * With -Wstop and warnings or errors of at least the requested
821: * level, do not produce output.
1.1 kristaps 822: */
823:
1.227 schwarze 824: if (rctmp != MANDOCLEVEL_OK && curp->wstop)
825: return;
1.111 kristaps 826:
1.276 schwarze 827: if (curp->outdata == NULL)
828: outdata_alloc(curp);
1.111 kristaps 829:
1.250 schwarze 830: mparse_result(curp->mp, &man, NULL);
831:
832: /* Execute the out device, if it exists. */
833:
834: if (man == NULL)
835: return;
1.297 schwarze 836: mandoc_xr_reset();
1.250 schwarze 837: if (man->macroset == MACROSET_MDOC) {
1.281 schwarze 838: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
839: mdoc_validate(man);
1.111 kristaps 840: switch (curp->outtype) {
1.173 schwarze 841: case OUTT_HTML:
1.250 schwarze 842: html_mdoc(curp->outdata, man);
1.111 kristaps 843: break;
1.173 schwarze 844: case OUTT_TREE:
1.250 schwarze 845: tree_mdoc(curp->outdata, man);
1.111 kristaps 846: break;
1.173 schwarze 847: case OUTT_MAN:
1.250 schwarze 848: man_mdoc(curp->outdata, man);
1.164 schwarze 849: break;
1.173 schwarze 850: case OUTT_PDF:
851: case OUTT_ASCII:
852: case OUTT_UTF8:
853: case OUTT_LOCALE:
854: case OUTT_PS:
1.250 schwarze 855: terminal_mdoc(curp->outdata, man);
856: break;
1.285 schwarze 857: case OUTT_MARKDOWN:
858: markdown_mdoc(curp->outdata, man);
859: break;
1.250 schwarze 860: default:
861: break;
862: }
863: }
864: if (man->macroset == MACROSET_MAN) {
1.281 schwarze 865: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
866: man_validate(man);
1.250 schwarze 867: switch (curp->outtype) {
868: case OUTT_HTML:
869: html_man(curp->outdata, man);
870: break;
871: case OUTT_TREE:
872: tree_man(curp->outdata, man);
873: break;
874: case OUTT_MAN:
1.308 ! schwarze 875: mparse_copy(curp->mp);
1.250 schwarze 876: break;
877: case OUTT_PDF:
878: case OUTT_ASCII:
879: case OUTT_UTF8:
880: case OUTT_LOCALE:
881: case OUTT_PS:
882: terminal_man(curp->outdata, man);
1.111 kristaps 883: break;
884: default:
885: break;
886: }
1.276 schwarze 887: }
1.297 schwarze 888: if (curp->mmin < MANDOCERR_STYLE)
889: check_xr(file);
1.278 schwarze 890: mparse_updaterc(curp->mp, &rc);
1.294 schwarze 891: }
892:
893: static void
894: check_xr(const char *file)
895: {
896: static struct manpaths paths;
897: struct mansearch search;
898: struct mandoc_xr *xr;
899: char *cp;
900: size_t sz;
901:
902: if (paths.sz == 0)
903: manpath_base(&paths);
904:
905: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 906: if (xr->line == -1)
907: continue;
1.294 schwarze 908: search.arch = NULL;
909: search.sec = xr->sec;
910: search.outkey = NULL;
911: search.argmode = ARG_NAME;
912: search.firstmatch = 1;
913: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 914: continue;
915: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.294 schwarze 916: continue;
1.298 schwarze 917: if (xr->count == 1)
918: mandoc_asprintf(&cp, "Xr %s %s", xr->name, xr->sec);
919: else
920: mandoc_asprintf(&cp, "Xr %s %s (%d times)",
921: xr->name, xr->sec, xr->count);
1.294 schwarze 922: mmsg(MANDOCERR_XR_BAD, MANDOCLEVEL_STYLE,
923: file, xr->line, xr->pos + 1, cp);
924: free(cp);
925: }
1.276 schwarze 926: }
927:
928: static void
929: outdata_alloc(struct curparse *curp)
930: {
931: switch (curp->outtype) {
932: case OUTT_HTML:
933: curp->outdata = html_alloc(curp->outopts);
934: break;
935: case OUTT_UTF8:
936: curp->outdata = utf8_alloc(curp->outopts);
937: break;
938: case OUTT_LOCALE:
939: curp->outdata = locale_alloc(curp->outopts);
940: break;
941: case OUTT_ASCII:
942: curp->outdata = ascii_alloc(curp->outopts);
943: break;
944: case OUTT_PDF:
945: curp->outdata = pdf_alloc(curp->outopts);
946: break;
947: case OUTT_PS:
948: curp->outdata = ps_alloc(curp->outopts);
949: break;
950: default:
951: break;
1.111 kristaps 952: }
1.186 schwarze 953: }
954:
1.227 schwarze 955: static void
1.197 schwarze 956: passthrough(const char *file, int fd, int synopsis_only)
1.186 schwarze 957: {
1.197 schwarze 958: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
959: const char synr[] = "SYNOPSIS";
960:
961: FILE *stream;
1.186 schwarze 962: const char *syscall;
1.257 schwarze 963: char *line, *cp;
964: size_t linesz;
1.277 schwarze 965: ssize_t len, written;
1.197 schwarze 966: int print;
1.210 schwarze 967:
1.257 schwarze 968: line = NULL;
969: linesz = 0;
1.197 schwarze 970:
1.277 schwarze 971: if (fflush(stdout) == EOF) {
972: syscall = "fflush";
973: goto fail;
974: }
975:
1.197 schwarze 976: if ((stream = fdopen(fd, "r")) == NULL) {
977: close(fd);
978: syscall = "fdopen";
979: goto fail;
980: }
1.186 schwarze 981:
1.197 schwarze 982: print = 0;
1.277 schwarze 983: while ((len = getline(&line, &linesz, stream)) != -1) {
1.257 schwarze 984: cp = line;
1.197 schwarze 985: if (synopsis_only) {
986: if (print) {
1.257 schwarze 987: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 988: goto done;
1.277 schwarze 989: while (isspace((unsigned char)*cp)) {
1.257 schwarze 990: cp++;
1.277 schwarze 991: len--;
992: }
1.197 schwarze 993: } else {
1.257 schwarze 994: if (strcmp(cp, synb) == 0 ||
995: strcmp(cp, synr) == 0)
1.197 schwarze 996: print = 1;
997: continue;
998: }
999: }
1.277 schwarze 1000: for (; len > 0; len -= written) {
1001: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
1002: continue;
1.257 schwarze 1003: fclose(stream);
1.277 schwarze 1004: syscall = "write";
1.257 schwarze 1005: goto fail;
1006: }
1.197 schwarze 1007: }
1.186 schwarze 1008:
1.197 schwarze 1009: if (ferror(stream)) {
1010: fclose(stream);
1.257 schwarze 1011: syscall = "getline";
1.197 schwarze 1012: goto fail;
1013: }
1.193 schwarze 1014:
1.197 schwarze 1015: done:
1.257 schwarze 1016: free(line);
1.197 schwarze 1017: fclose(stream);
1.227 schwarze 1018: return;
1.186 schwarze 1019:
1020: fail:
1.257 schwarze 1021: free(line);
1.247 schwarze 1022: warn("%s: SYSERR: %s", file, syscall);
1.227 schwarze 1023: if (rc < MANDOCLEVEL_SYSERR)
1024: rc = MANDOCLEVEL_SYSERR;
1.194 schwarze 1025: }
1026:
1027: static int
1028: koptions(int *options, char *arg)
1029: {
1030:
1031: if ( ! strcmp(arg, "utf-8")) {
1032: *options |= MPARSE_UTF8;
1033: *options &= ~MPARSE_LATIN1;
1034: } else if ( ! strcmp(arg, "iso-8859-1")) {
1035: *options |= MPARSE_LATIN1;
1036: *options &= ~MPARSE_UTF8;
1037: } else if ( ! strcmp(arg, "us-ascii")) {
1038: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
1039: } else {
1.247 schwarze 1040: warnx("-K %s: Bad argument", arg);
1.245 schwarze 1041: return 0;
1.194 schwarze 1042: }
1.245 schwarze 1043: return 1;
1.10 kristaps 1044: }
1045:
1.286 schwarze 1046: static void
1.170 schwarze 1047: moptions(int *options, char *arg)
1.10 kristaps 1048: {
1049:
1.180 schwarze 1050: if (arg == NULL)
1.286 schwarze 1051: return;
1052: if (strcmp(arg, "doc") == 0)
1.170 schwarze 1053: *options |= MPARSE_MDOC;
1.286 schwarze 1054: else if (strcmp(arg, "an") == 0)
1.170 schwarze 1055: *options |= MPARSE_MAN;
1.1 kristaps 1056: }
1057:
1058: static int
1.60 kristaps 1059: toptions(struct curparse *curp, char *arg)
1.1 kristaps 1060: {
1061:
1062: if (0 == strcmp(arg, "ascii"))
1.60 kristaps 1063: curp->outtype = OUTT_ASCII;
1064: else if (0 == strcmp(arg, "lint")) {
1065: curp->outtype = OUTT_LINT;
1.293 schwarze 1066: curp->mmin = MANDOCERR_BASE;
1.300 schwarze 1067: mmsg_stream = stdout;
1.154 kristaps 1068: } else if (0 == strcmp(arg, "tree"))
1.60 kristaps 1069: curp->outtype = OUTT_TREE;
1.164 schwarze 1070: else if (0 == strcmp(arg, "man"))
1071: curp->outtype = OUTT_MAN;
1.43 kristaps 1072: else if (0 == strcmp(arg, "html"))
1.60 kristaps 1073: curp->outtype = OUTT_HTML;
1.285 schwarze 1074: else if (0 == strcmp(arg, "markdown"))
1075: curp->outtype = OUTT_MARKDOWN;
1.163 kristaps 1076: else if (0 == strcmp(arg, "utf8"))
1077: curp->outtype = OUTT_UTF8;
1.162 kristaps 1078: else if (0 == strcmp(arg, "locale"))
1079: curp->outtype = OUTT_LOCALE;
1.85 kristaps 1080: else if (0 == strcmp(arg, "ps"))
1081: curp->outtype = OUTT_PS;
1.100 kristaps 1082: else if (0 == strcmp(arg, "pdf"))
1083: curp->outtype = OUTT_PDF;
1.1 kristaps 1084: else {
1.247 schwarze 1085: warnx("-T %s: Bad argument", arg);
1.245 schwarze 1086: return 0;
1.1 kristaps 1087: }
1088:
1.245 schwarze 1089: return 1;
1.1 kristaps 1090: }
1091:
1092: static int
1.103 schwarze 1093: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1094: {
1.34 kristaps 1095: char *v, *o;
1.293 schwarze 1096: const char *toks[11];
1.1 kristaps 1097:
1.103 schwarze 1098: toks[0] = "stop";
1099: toks[1] = "all";
1.293 schwarze 1100: toks[2] = "base";
1101: toks[3] = "style";
1102: toks[4] = "warning";
1103: toks[5] = "error";
1104: toks[6] = "unsupp";
1105: toks[7] = "fatal";
1106: toks[8] = "openbsd";
1107: toks[9] = "netbsd";
1108: toks[10] = NULL;
1.1 kristaps 1109:
1.34 kristaps 1110: while (*arg) {
1111: o = arg;
1.272 schwarze 1112: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1113: case 0:
1.103 schwarze 1114: curp->wstop = 1;
1.1 kristaps 1115: break;
1.173 schwarze 1116: case 1:
1117: case 2:
1.293 schwarze 1118: curp->mmin = MANDOCERR_BASE;
1.290 schwarze 1119: break;
1120: case 3:
1.293 schwarze 1121: curp->mmin = MANDOCERR_STYLE;
1.1 kristaps 1122: break;
1.290 schwarze 1123: case 4:
1.293 schwarze 1124: curp->mmin = MANDOCERR_WARNING;
1.24 kristaps 1125: break;
1.290 schwarze 1126: case 5:
1.293 schwarze 1127: curp->mmin = MANDOCERR_ERROR;
1.217 schwarze 1128: break;
1.290 schwarze 1129: case 6:
1.293 schwarze 1130: curp->mmin = MANDOCERR_UNSUPP;
1131: break;
1132: case 7:
1133: curp->mmin = MANDOCERR_MAX;
1134: break;
1135: case 8:
1136: curp->mmin = MANDOCERR_BASE;
1137: curp->os_e = MANDOC_OS_OPENBSD;
1138: break;
1139: case 9:
1140: curp->mmin = MANDOCERR_BASE;
1141: curp->os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1142: break;
1.1 kristaps 1143: default:
1.247 schwarze 1144: warnx("-W %s: Bad argument", o);
1.245 schwarze 1145: return 0;
1.1 kristaps 1146: }
1.34 kristaps 1147: }
1.245 schwarze 1148: return 1;
1.1 kristaps 1149: }
1150:
1.153 kristaps 1151: static void
1.173 schwarze 1152: mmsg(enum mandocerr t, enum mandoclevel lvl,
1.155 kristaps 1153: const char *file, int line, int col, const char *msg)
1.71 kristaps 1154: {
1.177 schwarze 1155: const char *mparse_msg;
1.103 schwarze 1156:
1.300 schwarze 1157: fprintf(mmsg_stream, "%s: %s:", getprogname(),
1.275 schwarze 1158: file == NULL ? "<stdin>" : file);
1.175 schwarze 1159:
1160: if (line)
1.300 schwarze 1161: fprintf(mmsg_stream, "%d:%d:", line, col + 1);
1.175 schwarze 1162:
1.300 schwarze 1163: fprintf(mmsg_stream, " %s", mparse_strlevel(lvl));
1.177 schwarze 1164:
1.293 schwarze 1165: if ((mparse_msg = mparse_strerror(t)) != NULL)
1.300 schwarze 1166: fprintf(mmsg_stream, ": %s", mparse_msg);
1.154 kristaps 1167:
1.73 kristaps 1168: if (msg)
1.300 schwarze 1169: fprintf(mmsg_stream, ": %s", msg);
1.154 kristaps 1170:
1.300 schwarze 1171: fputc('\n', mmsg_stream);
1.183 schwarze 1172: }
1173:
1.225 schwarze 1174: static pid_t
1.244 schwarze 1175: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1176: {
1.265 schwarze 1177: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1178: #define MAX_PAGER_ARGS 16
1179: char *argv[MAX_PAGER_ARGS];
1180: const char *pager;
1181: char *cp;
1.239 schwarze 1182: size_t cmdlen;
1.184 schwarze 1183: int argc;
1.225 schwarze 1184: pid_t pager_pid;
1.183 schwarze 1185:
1.239 schwarze 1186: pager = getenv("MANPAGER");
1187: if (pager == NULL || *pager == '\0')
1188: pager = getenv("PAGER");
1189: if (pager == NULL || *pager == '\0')
1190: pager = "more -s";
1191: cp = mandoc_strdup(pager);
1192:
1193: /*
1194: * Parse the pager command into words.
1195: * Intentionally do not do anything fancy here.
1196: */
1197:
1198: argc = 0;
1199: while (argc + 4 < MAX_PAGER_ARGS) {
1200: argv[argc++] = cp;
1201: cp = strchr(cp, ' ');
1202: if (cp == NULL)
1203: break;
1204: *cp++ = '\0';
1205: while (*cp == ' ')
1206: cp++;
1207: if (*cp == '\0')
1208: break;
1209: }
1210:
1.268 schwarze 1211: /* For less(1), use the tag file. */
1.239 schwarze 1212:
1.244 schwarze 1213: if ((cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1214: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1215: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1216: argv[argc++] = mandoc_strdup("-T");
1217: argv[argc++] = tag_files->tfn;
1218: }
1.239 schwarze 1219: }
1.244 schwarze 1220: argv[argc++] = tag_files->ofn;
1.239 schwarze 1221: argv[argc] = NULL;
1222:
1.225 schwarze 1223: switch (pager_pid = fork()) {
1.183 schwarze 1224: case -1:
1.247 schwarze 1225: err((int)MANDOCLEVEL_SYSERR, "fork");
1.183 schwarze 1226: case 0:
1.224 schwarze 1227: break;
1228: default:
1.258 schwarze 1229: (void)setpgid(pager_pid, 0);
1.279 schwarze 1230: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1231: #if HAVE_PLEDGE
1.258 schwarze 1232: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.255 schwarze 1233: err((int)MANDOCLEVEL_SYSERR, "pledge");
1234: #endif
1.259 schwarze 1235: tag_files->pager_pid = pager_pid;
1.245 schwarze 1236: return pager_pid;
1.184 schwarze 1237: }
1238:
1.224 schwarze 1239: /* The child process becomes the pager. */
1.184 schwarze 1240:
1.247 schwarze 1241: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1242: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.244 schwarze 1243: close(tag_files->ofd);
1.303 schwarze 1244: assert(tag_files->tfd == -1);
1.265 schwarze 1245:
1246: /* Do not start the pager before controlling the terminal. */
1247:
1.279 schwarze 1248: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1249: nanosleep(&timeout, NULL);
1250:
1.184 schwarze 1251: execvp(argv[0], argv);
1.247 schwarze 1252: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.71 kristaps 1253: }
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