Annotation of mandoc/main.c, Revision 1.305
1.305 ! schwarze 1: /* $Id: main.c,v 1.304 2018/04/13 19:55:30 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) &&
324: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1) {
325: if (conf.output.width == 0 && ws.ws_col < 79)
326: conf.output.width = ws.ws_col - 1;
327: if (conf.output.indent == 0 && ws.ws_col < 66)
328: conf.output.indent = 3;
329: }
1.246 schwarze 330:
1.255 schwarze 331: #if HAVE_PLEDGE
1.260 schwarze 332: if (!use_pager)
1.284 schwarze 333: if (pledge("stdio rpath", NULL) == -1)
1.260 schwarze 334: err((int)MANDOCLEVEL_SYSERR, "pledge");
1.255 schwarze 335: #endif
336:
1.185 schwarze 337: /* Parse arguments. */
338:
1.219 schwarze 339: if (argc > 0) {
340: argc -= optind;
341: argv += optind;
342: }
1.186 schwarze 343: resp = NULL;
1.185 schwarze 344:
1.202 schwarze 345: /*
346: * Quirks for help(1)
347: * and for a man(1) section argument without -s.
348: */
349:
350: if (search.argmode == ARG_NAME) {
1.254 schwarze 351: if (*progname == 'h') {
1.202 schwarze 352: if (argc == 0) {
353: argv = help_argv;
354: argc = 1;
355: }
1.211 schwarze 356: } else if (argc > 1 &&
1.223 kristaps 357: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 358: ((isdigit(uc[0]) && (uc[1] == '\0' ||
359: (isalpha(uc[1]) && uc[2] == '\0'))) ||
360: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 361: search.sec = (char *)uc;
1.202 schwarze 362: argv++;
363: argc--;
364: }
1.216 schwarze 365: if (search.arch == NULL)
366: search.arch = getenv("MACHINE");
1.223 kristaps 367: #ifdef MACHINE
1.216 schwarze 368: if (search.arch == NULL)
369: search.arch = MACHINE;
1.223 kristaps 370: #endif
1.185 schwarze 371: }
1.182 schwarze 372:
373: rc = MANDOCLEVEL_OK;
1.180 schwarze 374:
375: /* man(1), whatis(1), apropos(1) */
376:
377: if (search.argmode != ARG_FILE) {
1.199 schwarze 378: if (search.argmode == ARG_NAME &&
379: outmode == OUTMODE_ONE)
380: search.firstmatch = 1;
1.182 schwarze 381:
382: /* Access the mandoc database. */
383:
1.229 schwarze 384: manconf_parse(&conf, conf_file, defpaths, auxpaths);
385: if ( ! mansearch(&search, &conf.manpath,
386: argc, argv, &res, &sz))
1.180 schwarze 387: usage(search.argmode);
1.213 schwarze 388:
1.305 ! schwarze 389: if (sz == 0 && search.argmode == ARG_NAME)
! 390: fs_search(&search, &conf.manpath,
! 391: argc, argv, &res, &sz);
! 392:
! 393: if (search.argmode == ARG_NAME) {
! 394: for (c = 0; c < argc; c++) {
! 395: if (strchr(argv[c], '/') == NULL)
! 396: continue;
! 397: if (access(argv[c], R_OK) == -1) {
! 398: warn("%s", argv[c]);
! 399: continue;
! 400: }
! 401: res = mandoc_reallocarray(res,
! 402: sz + 1, sizeof(*res));
! 403: res[sz].file = mandoc_strdup(argv[c]);
! 404: res[sz].names = NULL;
! 405: res[sz].output = NULL;
! 406: res[sz].ipath = SIZE_MAX;
! 407: res[sz].bits = 0;
! 408: res[sz].sec = 10;
! 409: res[sz].form = FORM_SRC;
! 410: sz++;
! 411: }
1.237 schwarze 412: }
1.187 schwarze 413:
414: if (sz == 0) {
1.305 ! schwarze 415: if (search.argmode != ARG_NAME)
! 416: warnx("nothing appropriate");
1.187 schwarze 417: rc = MANDOCLEVEL_BADARG;
418: goto out;
419: }
1.182 schwarze 420:
421: /*
422: * For standard man(1) and -a output mode,
423: * prepare for copying filename pointers
424: * into the program parameter array.
425: */
426:
427: if (outmode == OUTMODE_ONE) {
428: argc = 1;
1.264 schwarze 429: best_prio = 20;
1.186 schwarze 430: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 431: argc = (int)sz;
432:
433: /* Iterate all matching manuals. */
434:
1.213 schwarze 435: resp = res;
1.181 schwarze 436: for (i = 0; i < sz; i++) {
437: if (outmode == OUTMODE_FLN)
438: puts(res[i].file);
1.182 schwarze 439: else if (outmode == OUTMODE_LST)
1.181 schwarze 440: printf("%s - %s\n", res[i].names,
441: res[i].output == NULL ? "" :
442: res[i].output);
1.186 schwarze 443: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 444: /* Search for the best section. */
1.264 schwarze 445: sec = res[i].file;
446: sec += strcspn(sec, "123456789");
447: if (sec[0] == '\0')
1.182 schwarze 448: continue;
1.264 schwarze 449: prio = sec_prios[sec[0] - '1'];
450: if (sec[1] != '/')
451: prio += 10;
1.182 schwarze 452: if (prio >= best_prio)
453: continue;
454: best_prio = prio;
1.186 schwarze 455: resp = res + i;
1.182 schwarze 456: }
1.181 schwarze 457: }
1.182 schwarze 458:
459: /*
460: * For man(1), -a and -i output mode, fall through
461: * to the main mandoc(1) code iterating files
462: * and running the parsers on each of them.
463: */
464:
465: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
466: goto out;
1.180 schwarze 467: }
468:
469: /* mandoc(1) */
470:
1.255 schwarze 471: #if HAVE_PLEDGE
1.260 schwarze 472: if (use_pager) {
473: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1)
474: err((int)MANDOCLEVEL_SYSERR, "pledge");
475: } else {
476: if (pledge("stdio rpath", NULL) == -1)
477: err((int)MANDOCLEVEL_SYSERR, "pledge");
478: }
1.255 schwarze 479: #endif
480:
1.286 schwarze 481: if (search.argmode == ARG_FILE)
482: moptions(&options, auxpaths);
1.241 schwarze 483:
1.249 schwarze 484: mchars_alloc();
1.293 schwarze 485: curp.mp = mparse_alloc(options, curp.mmin, mmsg,
486: curp.os_e, curp.os_s);
1.154 kristaps 487:
1.165 kristaps 488: /*
489: * Conditionally start up the lookaside buffer before parsing.
490: */
491: if (OUTT_MAN == curp.outtype)
492: mparse_keep(curp.mp);
493:
1.219 schwarze 494: if (argc < 1) {
1.244 schwarze 495: if (use_pager)
496: tag_files = tag_init();
1.227 schwarze 497: parse(&curp, STDIN_FILENO, "<stdin>");
1.212 schwarze 498: }
1.64 kristaps 499:
1.305 ! schwarze 500: /*
! 501: * Remember the original working directory, if possible.
! 502: * This will be needed if some names on the command line
! 503: * are page names and some are relative file names.
! 504: * Do not error out if the current directory is not
! 505: * readable: Maybe it won't be needed after all.
! 506: */
! 507: startdir = open(".", O_RDONLY | O_DIRECTORY);
! 508:
1.219 schwarze 509: while (argc > 0) {
1.305 ! schwarze 510:
! 511: /*
! 512: * Changing directories is not needed in ARG_FILE mode.
! 513: * Do it on a best-effort basis. Even in case of
! 514: * failure, some functionality may still work.
! 515: */
! 516: if (resp != NULL) {
! 517: if (resp->ipath != SIZE_MAX)
! 518: (void)chdir(conf.manpath.paths[resp->ipath]);
! 519: else if (startdir != -1)
! 520: (void)fchdir(startdir);
! 521: }
! 522:
1.262 schwarze 523: fd = mparse_open(curp.mp, resp != NULL ? resp->file : *argv);
1.212 schwarze 524: if (fd != -1) {
1.244 schwarze 525: if (use_pager) {
526: tag_files = tag_init();
527: use_pager = 0;
528: }
1.212 schwarze 529:
530: if (resp == NULL)
1.227 schwarze 531: parse(&curp, fd, *argv);
1.305 ! schwarze 532: else if (resp->form == FORM_SRC)
1.227 schwarze 533: parse(&curp, fd, resp->file);
1.305 ! schwarze 534: else
1.230 schwarze 535: passthrough(resp->file, fd,
536: conf.output.synopsisonly);
1.302 schwarze 537:
538: if (ferror(stdout)) {
539: if (tag_files != NULL) {
540: warn("%s", tag_files->ofn);
541: tag_unlink();
542: tag_files = NULL;
543: } else
544: warn("stdout");
545: rc = MANDOCLEVEL_SYSERR;
546: break;
547: }
1.212 schwarze 548:
1.276 schwarze 549: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
550: if (curp.outdata == NULL)
551: outdata_alloc(&curp);
1.267 schwarze 552: terminal_sepline(curp.outdata);
1.276 schwarze 553: }
1.262 schwarze 554: } else if (rc < MANDOCLEVEL_ERROR)
555: rc = MANDOCLEVEL_ERROR;
1.192 schwarze 556:
1.154 kristaps 557: if (MANDOCLEVEL_OK != rc && curp.wstop)
1.64 kristaps 558: break;
1.210 schwarze 559:
1.212 schwarze 560: if (resp != NULL)
561: resp++;
562: else
563: argv++;
564: if (--argc)
565: mparse_reset(curp.mp);
1.1 kristaps 566: }
1.305 ! schwarze 567: if (startdir != -1) {
! 568: (void)fchdir(startdir);
! 569: close(startdir);
! 570: }
1.1 kristaps 571:
1.252 schwarze 572: if (curp.outdata != NULL) {
573: switch (curp.outtype) {
574: case OUTT_HTML:
575: html_free(curp.outdata);
576: break;
577: case OUTT_UTF8:
578: case OUTT_LOCALE:
579: case OUTT_ASCII:
580: ascii_free(curp.outdata);
581: break;
582: case OUTT_PDF:
583: case OUTT_PS:
584: pspdf_free(curp.outdata);
585: break;
586: default:
587: break;
588: }
1.250 schwarze 589: }
1.294 schwarze 590: mandoc_xr_free();
1.195 schwarze 591: mparse_free(curp.mp);
1.249 schwarze 592: mchars_free();
1.182 schwarze 593:
594: out:
595: if (search.argmode != ARG_FILE) {
1.229 schwarze 596: manconf_free(&conf);
1.182 schwarze 597: mansearch_free(res, sz);
598: }
599:
1.293 schwarze 600: free(curp.os_s);
1.1 kristaps 601:
1.224 schwarze 602: /*
1.244 schwarze 603: * When using a pager, finish writing both temporary files,
604: * fork it, wait for the user to close it, and clean up.
1.224 schwarze 605: */
606:
1.244 schwarze 607: if (tag_files != NULL) {
1.225 schwarze 608: fclose(stdout);
1.239 schwarze 609: tag_write();
1.259 schwarze 610: man_pgid = getpgid(0);
611: tag_files->tcpgid = man_pgid == getpid() ?
612: getpgid(getppid()) : man_pgid;
613: pager_pid = 0;
614: signum = SIGSTOP;
1.258 schwarze 615: for (;;) {
1.259 schwarze 616:
617: /* Stop here until moved to the foreground. */
618:
1.279 schwarze 619: tc_pgid = tcgetpgrp(tag_files->ofd);
1.259 schwarze 620: if (tc_pgid != man_pgid) {
621: if (tc_pgid == pager_pid) {
1.279 schwarze 622: (void)tcsetpgrp(tag_files->ofd,
1.259 schwarze 623: man_pgid);
624: if (signum == SIGTTIN)
625: continue;
626: } else
627: tag_files->tcpgid = tc_pgid;
628: kill(0, signum);
629: continue;
630: }
631:
632: /* Once in the foreground, activate the pager. */
633:
634: if (pager_pid) {
1.279 schwarze 635: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.259 schwarze 636: kill(pager_pid, SIGCONT);
637: } else
638: pager_pid = spawn_pager(tag_files);
639:
640: /* Wait for the pager to stop or exit. */
641:
642: while ((pid = waitpid(pager_pid, &status,
643: WUNTRACED)) == -1 && errno == EINTR)
644: continue;
645:
646: if (pid == -1) {
1.258 schwarze 647: warn("wait");
648: rc = MANDOCLEVEL_SYSERR;
649: break;
650: }
651: if (!WIFSTOPPED(status))
652: break;
653:
1.259 schwarze 654: signum = WSTOPSIG(status);
1.258 schwarze 655: }
1.239 schwarze 656: tag_unlink();
1.225 schwarze 657: }
1.224 schwarze 658:
1.245 schwarze 659: return (int)rc;
1.1 kristaps 660: }
661:
1.55 kristaps 662: static void
1.180 schwarze 663: usage(enum argmode argmode)
1.1 kristaps 664: {
665:
1.180 schwarze 666: switch (argmode) {
667: case ARG_FILE:
1.287 schwarze 668: fputs("usage: mandoc [-ac] [-I os=name] "
669: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 670: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 671: break;
672: case ARG_NAME:
1.287 schwarze 673: fputs("usage: man [-acfhklw] [-C file] [-M path] "
674: "[-m path] [-S subsection]\n"
675: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 676: break;
677: case ARG_WORD:
1.287 schwarze 678: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 679: "[-M path] [-m path] [-O outkey] [-S arch]\n"
680: "\t [-s section] name ...\n", stderr);
1.180 schwarze 681: break;
682: case ARG_EXPR:
1.287 schwarze 683: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 684: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 685: "\t [-s section] expression ...\n", stderr);
686: break;
687: }
1.105 kristaps 688: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 689: }
1.213 schwarze 690:
691: static int
692: fs_lookup(const struct manpaths *paths, size_t ipath,
693: const char *sec, const char *arch, const char *name,
694: struct manpage **res, size_t *ressz)
695: {
1.222 schwarze 696: glob_t globinfo;
1.213 schwarze 697: struct manpage *page;
698: char *file;
1.274 schwarze 699: int globres;
700: enum form form;
1.213 schwarze 701:
1.222 schwarze 702: form = FORM_SRC;
1.213 schwarze 703: mandoc_asprintf(&file, "%s/man%s/%s.%s",
704: paths->paths[ipath], sec, name, sec);
1.222 schwarze 705: if (access(file, R_OK) != -1)
1.213 schwarze 706: goto found;
707: free(file);
708:
709: mandoc_asprintf(&file, "%s/cat%s/%s.0",
710: paths->paths[ipath], sec, name);
711: if (access(file, R_OK) != -1) {
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);
1.222 schwarze 720: if (access(file, R_OK) != -1)
1.213 schwarze 721: goto found;
722: free(file);
723: }
1.222 schwarze 724:
1.240 schwarze 725: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 726: paths->paths[ipath], sec, name);
727: globres = glob(file, 0, NULL, &globinfo);
728: if (globres != 0 && globres != GLOB_NOMATCH)
1.247 schwarze 729: warn("%s: glob", file);
1.222 schwarze 730: free(file);
731: if (globres == 0)
732: file = mandoc_strdup(*globinfo.gl_pathv);
733: globfree(&globinfo);
1.296 schwarze 734: if (globres == 0)
735: goto found;
736: if (res != NULL || ipath + 1 != paths->sz)
1.245 schwarze 737: return 0;
1.213 schwarze 738:
1.296 schwarze 739: mandoc_asprintf(&file, "%s.%s", name, sec);
740: globres = access(file, R_OK);
741: free(file);
742: return globres != -1;
743:
1.213 schwarze 744: found:
1.266 schwarze 745: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
746: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 747: if (res == NULL) {
748: free(file);
1.295 schwarze 749: return 1;
1.296 schwarze 750: }
1.213 schwarze 751: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(struct manpage));
752: page = *res + (*ressz - 1);
753: page->file = file;
754: page->names = NULL;
755: page->output = NULL;
756: page->ipath = ipath;
757: page->bits = NAME_FILE & NAME_MASK;
758: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
759: page->form = form;
1.245 schwarze 760: return 1;
1.213 schwarze 761: }
762:
1.295 schwarze 763: static int
1.213 schwarze 764: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
765: int argc, char **argv, struct manpage **res, size_t *ressz)
766: {
767: const char *const sections[] =
1.264 schwarze 768: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 769: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
770:
771: size_t ipath, isec, lastsz;
772:
773: assert(cfg->argmode == ARG_NAME);
774:
1.295 schwarze 775: if (res != NULL)
776: *res = NULL;
1.213 schwarze 777: *ressz = lastsz = 0;
778: while (argc) {
779: for (ipath = 0; ipath < paths->sz; ipath++) {
780: if (cfg->sec != NULL) {
781: if (fs_lookup(paths, ipath, cfg->sec,
782: cfg->arch, *argv, res, ressz) &&
783: cfg->firstmatch)
1.295 schwarze 784: return 1;
1.213 schwarze 785: } else for (isec = 0; isec < nsec; isec++)
786: if (fs_lookup(paths, ipath, sections[isec],
787: cfg->arch, *argv, res, ressz) &&
788: cfg->firstmatch)
1.295 schwarze 789: return 1;
1.213 schwarze 790: }
1.305 ! schwarze 791: if (res != NULL && *ressz == lastsz &&
! 792: strchr(*argv, '/') == NULL)
1.247 schwarze 793: warnx("No entry for %s in the manual.", *argv);
1.213 schwarze 794: lastsz = *ressz;
795: argv++;
796: argc--;
797: }
1.295 schwarze 798: return 0;
1.213 schwarze 799: }
1.68 joerg 800:
1.64 kristaps 801: static void
1.227 schwarze 802: parse(struct curparse *curp, int fd, const char *file)
1.1 kristaps 803: {
1.227 schwarze 804: enum mandoclevel rctmp;
1.234 schwarze 805: struct roff_man *man;
1.112 kristaps 806:
1.154 kristaps 807: /* Begin by parsing the file itself. */
1.112 kristaps 808:
1.154 kristaps 809: assert(file);
1.263 schwarze 810: assert(fd >= 0);
1.112 kristaps 811:
1.227 schwarze 812: rctmp = mparse_readfd(curp->mp, fd, file);
1.261 schwarze 813: if (fd != STDIN_FILENO)
814: close(fd);
1.227 schwarze 815: if (rc < rctmp)
816: rc = rctmp;
1.112 kristaps 817:
1.1 kristaps 818: /*
1.154 kristaps 819: * With -Wstop and warnings or errors of at least the requested
820: * level, do not produce output.
1.1 kristaps 821: */
822:
1.227 schwarze 823: if (rctmp != MANDOCLEVEL_OK && curp->wstop)
824: return;
1.111 kristaps 825:
1.276 schwarze 826: if (curp->outdata == NULL)
827: outdata_alloc(curp);
1.111 kristaps 828:
1.250 schwarze 829: mparse_result(curp->mp, &man, NULL);
830:
831: /* Execute the out device, if it exists. */
832:
833: if (man == NULL)
834: return;
1.297 schwarze 835: mandoc_xr_reset();
1.250 schwarze 836: if (man->macroset == MACROSET_MDOC) {
1.281 schwarze 837: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
838: mdoc_validate(man);
1.111 kristaps 839: switch (curp->outtype) {
1.173 schwarze 840: case OUTT_HTML:
1.250 schwarze 841: html_mdoc(curp->outdata, man);
1.111 kristaps 842: break;
1.173 schwarze 843: case OUTT_TREE:
1.250 schwarze 844: tree_mdoc(curp->outdata, man);
1.111 kristaps 845: break;
1.173 schwarze 846: case OUTT_MAN:
1.250 schwarze 847: man_mdoc(curp->outdata, man);
1.164 schwarze 848: break;
1.173 schwarze 849: case OUTT_PDF:
850: case OUTT_ASCII:
851: case OUTT_UTF8:
852: case OUTT_LOCALE:
853: case OUTT_PS:
1.250 schwarze 854: terminal_mdoc(curp->outdata, man);
855: break;
1.285 schwarze 856: case OUTT_MARKDOWN:
857: markdown_mdoc(curp->outdata, man);
858: break;
1.250 schwarze 859: default:
860: break;
861: }
862: }
863: if (man->macroset == MACROSET_MAN) {
1.281 schwarze 864: if (curp->outtype != OUTT_TREE || !curp->outopts->noval)
865: man_validate(man);
1.250 schwarze 866: switch (curp->outtype) {
867: case OUTT_HTML:
868: html_man(curp->outdata, man);
869: break;
870: case OUTT_TREE:
871: tree_man(curp->outdata, man);
872: break;
873: case OUTT_MAN:
874: man_man(curp->outdata, man);
875: break;
876: case OUTT_PDF:
877: case OUTT_ASCII:
878: case OUTT_UTF8:
879: case OUTT_LOCALE:
880: case OUTT_PS:
881: terminal_man(curp->outdata, man);
1.111 kristaps 882: break;
883: default:
884: break;
885: }
1.276 schwarze 886: }
1.297 schwarze 887: if (curp->mmin < MANDOCERR_STYLE)
888: check_xr(file);
1.278 schwarze 889: mparse_updaterc(curp->mp, &rc);
1.294 schwarze 890: }
891:
892: static void
893: check_xr(const char *file)
894: {
895: static struct manpaths paths;
896: struct mansearch search;
897: struct mandoc_xr *xr;
898: char *cp;
899: size_t sz;
900:
901: if (paths.sz == 0)
902: manpath_base(&paths);
903:
904: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 905: if (xr->line == -1)
906: continue;
1.294 schwarze 907: search.arch = NULL;
908: search.sec = xr->sec;
909: search.outkey = NULL;
910: search.argmode = ARG_NAME;
911: search.firstmatch = 1;
912: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 913: continue;
914: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz))
1.294 schwarze 915: continue;
1.298 schwarze 916: if (xr->count == 1)
917: mandoc_asprintf(&cp, "Xr %s %s", xr->name, xr->sec);
918: else
919: mandoc_asprintf(&cp, "Xr %s %s (%d times)",
920: xr->name, xr->sec, xr->count);
1.294 schwarze 921: mmsg(MANDOCERR_XR_BAD, MANDOCLEVEL_STYLE,
922: file, xr->line, xr->pos + 1, cp);
923: free(cp);
924: }
1.276 schwarze 925: }
926:
927: static void
928: outdata_alloc(struct curparse *curp)
929: {
930: switch (curp->outtype) {
931: case OUTT_HTML:
932: curp->outdata = html_alloc(curp->outopts);
933: break;
934: case OUTT_UTF8:
935: curp->outdata = utf8_alloc(curp->outopts);
936: break;
937: case OUTT_LOCALE:
938: curp->outdata = locale_alloc(curp->outopts);
939: break;
940: case OUTT_ASCII:
941: curp->outdata = ascii_alloc(curp->outopts);
942: break;
943: case OUTT_PDF:
944: curp->outdata = pdf_alloc(curp->outopts);
945: break;
946: case OUTT_PS:
947: curp->outdata = ps_alloc(curp->outopts);
948: break;
949: default:
950: break;
1.111 kristaps 951: }
1.186 schwarze 952: }
953:
1.227 schwarze 954: static void
1.197 schwarze 955: passthrough(const char *file, int fd, int synopsis_only)
1.186 schwarze 956: {
1.197 schwarze 957: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
958: const char synr[] = "SYNOPSIS";
959:
960: FILE *stream;
1.186 schwarze 961: const char *syscall;
1.257 schwarze 962: char *line, *cp;
963: size_t linesz;
1.277 schwarze 964: ssize_t len, written;
1.197 schwarze 965: int print;
1.210 schwarze 966:
1.257 schwarze 967: line = NULL;
968: linesz = 0;
1.197 schwarze 969:
1.277 schwarze 970: if (fflush(stdout) == EOF) {
971: syscall = "fflush";
972: goto fail;
973: }
974:
1.197 schwarze 975: if ((stream = fdopen(fd, "r")) == NULL) {
976: close(fd);
977: syscall = "fdopen";
978: goto fail;
979: }
1.186 schwarze 980:
1.197 schwarze 981: print = 0;
1.277 schwarze 982: while ((len = getline(&line, &linesz, stream)) != -1) {
1.257 schwarze 983: cp = line;
1.197 schwarze 984: if (synopsis_only) {
985: if (print) {
1.257 schwarze 986: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 987: goto done;
1.277 schwarze 988: while (isspace((unsigned char)*cp)) {
1.257 schwarze 989: cp++;
1.277 schwarze 990: len--;
991: }
1.197 schwarze 992: } else {
1.257 schwarze 993: if (strcmp(cp, synb) == 0 ||
994: strcmp(cp, synr) == 0)
1.197 schwarze 995: print = 1;
996: continue;
997: }
998: }
1.277 schwarze 999: for (; len > 0; len -= written) {
1000: if ((written = write(STDOUT_FILENO, cp, len)) != -1)
1001: continue;
1.257 schwarze 1002: fclose(stream);
1.277 schwarze 1003: syscall = "write";
1.257 schwarze 1004: goto fail;
1005: }
1.197 schwarze 1006: }
1.186 schwarze 1007:
1.197 schwarze 1008: if (ferror(stream)) {
1009: fclose(stream);
1.257 schwarze 1010: syscall = "getline";
1.197 schwarze 1011: goto fail;
1012: }
1.193 schwarze 1013:
1.197 schwarze 1014: done:
1.257 schwarze 1015: free(line);
1.197 schwarze 1016: fclose(stream);
1.227 schwarze 1017: return;
1.186 schwarze 1018:
1019: fail:
1.257 schwarze 1020: free(line);
1.247 schwarze 1021: warn("%s: SYSERR: %s", file, syscall);
1.227 schwarze 1022: if (rc < MANDOCLEVEL_SYSERR)
1023: rc = MANDOCLEVEL_SYSERR;
1.194 schwarze 1024: }
1025:
1026: static int
1027: koptions(int *options, char *arg)
1028: {
1029:
1030: if ( ! strcmp(arg, "utf-8")) {
1031: *options |= MPARSE_UTF8;
1032: *options &= ~MPARSE_LATIN1;
1033: } else if ( ! strcmp(arg, "iso-8859-1")) {
1034: *options |= MPARSE_LATIN1;
1035: *options &= ~MPARSE_UTF8;
1036: } else if ( ! strcmp(arg, "us-ascii")) {
1037: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
1038: } else {
1.247 schwarze 1039: warnx("-K %s: Bad argument", arg);
1.245 schwarze 1040: return 0;
1.194 schwarze 1041: }
1.245 schwarze 1042: return 1;
1.10 kristaps 1043: }
1044:
1.286 schwarze 1045: static void
1.170 schwarze 1046: moptions(int *options, char *arg)
1.10 kristaps 1047: {
1048:
1.180 schwarze 1049: if (arg == NULL)
1.286 schwarze 1050: return;
1051: if (strcmp(arg, "doc") == 0)
1.170 schwarze 1052: *options |= MPARSE_MDOC;
1.286 schwarze 1053: else if (strcmp(arg, "an") == 0)
1.170 schwarze 1054: *options |= MPARSE_MAN;
1.1 kristaps 1055: }
1056:
1057: static int
1.60 kristaps 1058: toptions(struct curparse *curp, char *arg)
1.1 kristaps 1059: {
1060:
1061: if (0 == strcmp(arg, "ascii"))
1.60 kristaps 1062: curp->outtype = OUTT_ASCII;
1063: else if (0 == strcmp(arg, "lint")) {
1064: curp->outtype = OUTT_LINT;
1.293 schwarze 1065: curp->mmin = MANDOCERR_BASE;
1.300 schwarze 1066: mmsg_stream = stdout;
1.154 kristaps 1067: } else if (0 == strcmp(arg, "tree"))
1.60 kristaps 1068: curp->outtype = OUTT_TREE;
1.164 schwarze 1069: else if (0 == strcmp(arg, "man"))
1070: curp->outtype = OUTT_MAN;
1.43 kristaps 1071: else if (0 == strcmp(arg, "html"))
1.60 kristaps 1072: curp->outtype = OUTT_HTML;
1.285 schwarze 1073: else if (0 == strcmp(arg, "markdown"))
1074: curp->outtype = OUTT_MARKDOWN;
1.163 kristaps 1075: else if (0 == strcmp(arg, "utf8"))
1076: curp->outtype = OUTT_UTF8;
1.162 kristaps 1077: else if (0 == strcmp(arg, "locale"))
1078: curp->outtype = OUTT_LOCALE;
1.85 kristaps 1079: else if (0 == strcmp(arg, "ps"))
1080: curp->outtype = OUTT_PS;
1.100 kristaps 1081: else if (0 == strcmp(arg, "pdf"))
1082: curp->outtype = OUTT_PDF;
1.1 kristaps 1083: else {
1.247 schwarze 1084: warnx("-T %s: Bad argument", arg);
1.245 schwarze 1085: return 0;
1.1 kristaps 1086: }
1087:
1.245 schwarze 1088: return 1;
1.1 kristaps 1089: }
1090:
1091: static int
1.103 schwarze 1092: woptions(struct curparse *curp, char *arg)
1.1 kristaps 1093: {
1.34 kristaps 1094: char *v, *o;
1.293 schwarze 1095: const char *toks[11];
1.1 kristaps 1096:
1.103 schwarze 1097: toks[0] = "stop";
1098: toks[1] = "all";
1.293 schwarze 1099: toks[2] = "base";
1100: toks[3] = "style";
1101: toks[4] = "warning";
1102: toks[5] = "error";
1103: toks[6] = "unsupp";
1104: toks[7] = "fatal";
1105: toks[8] = "openbsd";
1106: toks[9] = "netbsd";
1107: toks[10] = NULL;
1.1 kristaps 1108:
1.34 kristaps 1109: while (*arg) {
1110: o = arg;
1.272 schwarze 1111: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1112: case 0:
1.103 schwarze 1113: curp->wstop = 1;
1.1 kristaps 1114: break;
1.173 schwarze 1115: case 1:
1116: case 2:
1.293 schwarze 1117: curp->mmin = MANDOCERR_BASE;
1.290 schwarze 1118: break;
1119: case 3:
1.293 schwarze 1120: curp->mmin = MANDOCERR_STYLE;
1.1 kristaps 1121: break;
1.290 schwarze 1122: case 4:
1.293 schwarze 1123: curp->mmin = MANDOCERR_WARNING;
1.24 kristaps 1124: break;
1.290 schwarze 1125: case 5:
1.293 schwarze 1126: curp->mmin = MANDOCERR_ERROR;
1.217 schwarze 1127: break;
1.290 schwarze 1128: case 6:
1.293 schwarze 1129: curp->mmin = MANDOCERR_UNSUPP;
1130: break;
1131: case 7:
1132: curp->mmin = MANDOCERR_MAX;
1133: break;
1134: case 8:
1135: curp->mmin = MANDOCERR_BASE;
1136: curp->os_e = MANDOC_OS_OPENBSD;
1137: break;
1138: case 9:
1139: curp->mmin = MANDOCERR_BASE;
1140: curp->os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1141: break;
1.1 kristaps 1142: default:
1.247 schwarze 1143: warnx("-W %s: Bad argument", o);
1.245 schwarze 1144: return 0;
1.1 kristaps 1145: }
1.34 kristaps 1146: }
1.245 schwarze 1147: return 1;
1.1 kristaps 1148: }
1149:
1.153 kristaps 1150: static void
1.173 schwarze 1151: mmsg(enum mandocerr t, enum mandoclevel lvl,
1.155 kristaps 1152: const char *file, int line, int col, const char *msg)
1.71 kristaps 1153: {
1.177 schwarze 1154: const char *mparse_msg;
1.103 schwarze 1155:
1.300 schwarze 1156: fprintf(mmsg_stream, "%s: %s:", getprogname(),
1.275 schwarze 1157: file == NULL ? "<stdin>" : file);
1.175 schwarze 1158:
1159: if (line)
1.300 schwarze 1160: fprintf(mmsg_stream, "%d:%d:", line, col + 1);
1.175 schwarze 1161:
1.300 schwarze 1162: fprintf(mmsg_stream, " %s", mparse_strlevel(lvl));
1.177 schwarze 1163:
1.293 schwarze 1164: if ((mparse_msg = mparse_strerror(t)) != NULL)
1.300 schwarze 1165: fprintf(mmsg_stream, ": %s", mparse_msg);
1.154 kristaps 1166:
1.73 kristaps 1167: if (msg)
1.300 schwarze 1168: fprintf(mmsg_stream, ": %s", msg);
1.154 kristaps 1169:
1.300 schwarze 1170: fputc('\n', mmsg_stream);
1.183 schwarze 1171: }
1172:
1.225 schwarze 1173: static pid_t
1.244 schwarze 1174: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1175: {
1.265 schwarze 1176: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1177: #define MAX_PAGER_ARGS 16
1178: char *argv[MAX_PAGER_ARGS];
1179: const char *pager;
1180: char *cp;
1.239 schwarze 1181: size_t cmdlen;
1.184 schwarze 1182: int argc;
1.225 schwarze 1183: pid_t pager_pid;
1.183 schwarze 1184:
1.239 schwarze 1185: pager = getenv("MANPAGER");
1186: if (pager == NULL || *pager == '\0')
1187: pager = getenv("PAGER");
1188: if (pager == NULL || *pager == '\0')
1189: pager = "more -s";
1190: cp = mandoc_strdup(pager);
1191:
1192: /*
1193: * Parse the pager command into words.
1194: * Intentionally do not do anything fancy here.
1195: */
1196:
1197: argc = 0;
1198: while (argc + 4 < MAX_PAGER_ARGS) {
1199: argv[argc++] = cp;
1200: cp = strchr(cp, ' ');
1201: if (cp == NULL)
1202: break;
1203: *cp++ = '\0';
1204: while (*cp == ' ')
1205: cp++;
1206: if (*cp == '\0')
1207: break;
1208: }
1209:
1.268 schwarze 1210: /* For less(1), use the tag file. */
1.239 schwarze 1211:
1.244 schwarze 1212: if ((cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1213: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1214: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1215: argv[argc++] = mandoc_strdup("-T");
1216: argv[argc++] = tag_files->tfn;
1217: }
1.239 schwarze 1218: }
1.244 schwarze 1219: argv[argc++] = tag_files->ofn;
1.239 schwarze 1220: argv[argc] = NULL;
1221:
1.225 schwarze 1222: switch (pager_pid = fork()) {
1.183 schwarze 1223: case -1:
1.247 schwarze 1224: err((int)MANDOCLEVEL_SYSERR, "fork");
1.183 schwarze 1225: case 0:
1.224 schwarze 1226: break;
1227: default:
1.258 schwarze 1228: (void)setpgid(pager_pid, 0);
1.279 schwarze 1229: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1230: #if HAVE_PLEDGE
1.258 schwarze 1231: if (pledge("stdio rpath tmppath tty proc", NULL) == -1)
1.255 schwarze 1232: err((int)MANDOCLEVEL_SYSERR, "pledge");
1233: #endif
1.259 schwarze 1234: tag_files->pager_pid = pager_pid;
1.245 schwarze 1235: return pager_pid;
1.184 schwarze 1236: }
1237:
1.224 schwarze 1238: /* The child process becomes the pager. */
1.184 schwarze 1239:
1.247 schwarze 1240: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1)
1241: err((int)MANDOCLEVEL_SYSERR, "pager stdout");
1.244 schwarze 1242: close(tag_files->ofd);
1.303 schwarze 1243: assert(tag_files->tfd == -1);
1.265 schwarze 1244:
1245: /* Do not start the pager before controlling the terminal. */
1246:
1.279 schwarze 1247: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1248: nanosleep(&timeout, NULL);
1249:
1.184 schwarze 1250: execvp(argv[0], argv);
1.247 schwarze 1251: err((int)MANDOCLEVEL_SYSERR, "exec %s", argv[0]);
1.71 kristaps 1252: }
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