Annotation of src/usr.bin/mandoc/main.c, Revision 1.111
1.111 ! schwarze 1: /* $OpenBSD: main.c,v 1.110 2014/12/05 21:55:02 schwarze Exp $ */
1.1 kristaps 2: /*
1.95 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.87 schwarze 4: * Copyright (c) 2010, 2011, 2012, 2014 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: *
1.2 schwarze 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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>
21:
1.1 kristaps 22: #include <assert.h>
1.95 schwarze 23: #include <ctype.h>
24: #include <errno.h>
25: #include <fcntl.h>
1.1 kristaps 26: #include <stdio.h>
1.17 schwarze 27: #include <stdint.h>
1.1 kristaps 28: #include <stdlib.h>
29: #include <string.h>
30: #include <unistd.h>
31:
1.30 schwarze 32: #include "mandoc.h"
1.89 schwarze 33: #include "mandoc_aux.h"
1.38 schwarze 34: #include "main.h"
1.1 kristaps 35: #include "mdoc.h"
36: #include "man.h"
1.95 schwarze 37: #include "manpath.h"
38: #include "mansearch.h"
39:
40: enum outmode {
41: OUTMODE_DEF = 0,
42: OUTMODE_FLN,
43: OUTMODE_LST,
44: OUTMODE_ALL,
45: OUTMODE_INT,
46: OUTMODE_ONE
47: };
1.1 kristaps 48:
1.16 schwarze 49: typedef void (*out_mdoc)(void *, const struct mdoc *);
50: typedef void (*out_man)(void *, const struct man *);
1.1 kristaps 51: typedef void (*out_free)(void *);
52:
53: enum outt {
1.76 schwarze 54: OUTT_ASCII = 0, /* -Tascii */
1.77 schwarze 55: OUTT_LOCALE, /* -Tlocale */
56: OUTT_UTF8, /* -Tutf8 */
1.76 schwarze 57: OUTT_TREE, /* -Ttree */
1.78 schwarze 58: OUTT_MAN, /* -Tman */
1.76 schwarze 59: OUTT_HTML, /* -Thtml */
60: OUTT_LINT, /* -Tlint */
61: OUTT_PS, /* -Tps */
62: OUTT_PDF /* -Tpdf */
1.1 kristaps 63: };
64:
65: struct curparse {
1.76 schwarze 66: struct mparse *mp;
1.102 schwarze 67: struct mchars *mchars; /* character table */
1.75 schwarze 68: enum mandoclevel wlevel; /* ignore messages below this */
69: int wstop; /* stop after a file with a warning */
1.90 schwarze 70: enum outt outtype; /* which output to use */
1.33 schwarze 71: out_mdoc outmdoc; /* mdoc output ptr */
1.90 schwarze 72: out_man outman; /* man output ptr */
1.33 schwarze 73: out_free outfree; /* free output ptr */
74: void *outdata; /* data for output */
75: char outopts[BUFSIZ]; /* buf of output opts */
76: };
77:
1.103 schwarze 78: static int koptions(int *, char *);
1.79 schwarze 79: int mandocdb(int, char**);
1.87 schwarze 80: static int moptions(int *, char *);
1.76 schwarze 81: static void mmsg(enum mandocerr, enum mandoclevel,
82: const char *, int, int, const char *);
1.90 schwarze 83: static void parse(struct curparse *, int,
1.76 schwarze 84: const char *, enum mandoclevel *);
1.105 schwarze 85: static enum mandoclevel passthrough(const char *, int, int);
1.95 schwarze 86: static void spawn_pager(void);
1.27 schwarze 87: static int toptions(struct curparse *, char *);
1.95 schwarze 88: static void usage(enum argmode) __attribute__((noreturn));
1.20 schwarze 89: static void version(void) __attribute__((noreturn));
1.45 schwarze 90: static int woptions(struct curparse *, char *);
1.1 kristaps 91:
1.95 schwarze 92: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.110 schwarze 93: static char help_arg[] = "help";
94: static char *help_argv[] = {help_arg, NULL};
1.19 schwarze 95: static const char *progname;
1.1 kristaps 96:
1.90 schwarze 97:
1.1 kristaps 98: int
99: main(int argc, char *argv[])
100: {
101: struct curparse curp;
1.95 schwarze 102: struct mansearch search;
103: struct manpaths paths;
1.111 ! schwarze 104: char *auxpaths;
1.95 schwarze 105: char *defos;
106: struct manpage *res, *resp;
1.111 ! schwarze 107: char *conf_file, *defpaths;
1.95 schwarze 108: size_t isec, i, sz;
1.111 ! schwarze 109: int prio, best_prio, synopsis_only;
1.95 schwarze 110: char sec;
111: enum mandoclevel rc;
112: enum outmode outmode;
1.100 schwarze 113: int fd;
1.95 schwarze 114: int show_usage;
115: int use_pager;
1.87 schwarze 116: int options;
1.95 schwarze 117: int c;
1.1 kristaps 118:
1.19 schwarze 119: progname = strrchr(argv[0], '/');
120: if (progname == NULL)
121: progname = argv[0];
122: else
123: ++progname;
1.79 schwarze 124:
1.82 schwarze 125: if (0 == strncmp(progname, "mandocdb", 8) ||
126: 0 == strncmp(progname, "makewhatis", 10))
1.79 schwarze 127: return(mandocdb(argc, argv));
1.19 schwarze 128:
1.95 schwarze 129: /* Search options. */
130:
131: memset(&paths, 0, sizeof(struct manpaths));
1.111 ! schwarze 132: conf_file = defpaths = NULL;
! 133: auxpaths = NULL;
1.95 schwarze 134:
135: memset(&search, 0, sizeof(struct mansearch));
136: search.outkey = "Nd";
137:
138: if (strcmp(progname, "man") == 0)
139: search.argmode = ARG_NAME;
140: else if (strncmp(progname, "apropos", 7) == 0)
141: search.argmode = ARG_EXPR;
142: else if (strncmp(progname, "whatis", 6) == 0)
143: search.argmode = ARG_WORD;
1.110 schwarze 144: else if (strncmp(progname, "help", 4) == 0)
145: search.argmode = ARG_NAME;
1.95 schwarze 146: else
147: search.argmode = ARG_FILE;
148:
149: /* Parser and formatter options. */
150:
1.19 schwarze 151: memset(&curp, 0, sizeof(struct curparse));
1.109 schwarze 152: curp.outtype = OUTT_LOCALE;
1.45 schwarze 153: curp.wlevel = MANDOCLEVEL_FATAL;
1.103 schwarze 154: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.83 schwarze 155: defos = NULL;
1.1 kristaps 156:
1.95 schwarze 157: use_pager = 1;
158: show_usage = 0;
1.105 schwarze 159: synopsis_only = 0;
1.95 schwarze 160: outmode = OUTMODE_DEF;
161:
1.103 schwarze 162: while (-1 != (c = getopt(argc, argv,
163: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w"))) {
1.1 kristaps 164: switch (c) {
1.95 schwarze 165: case 'a':
166: outmode = OUTMODE_ALL;
167: break;
168: case 'C':
169: conf_file = optarg;
170: break;
171: case 'c':
172: use_pager = 0;
173: break;
174: case 'f':
175: search.argmode = ARG_WORD;
176: break;
1.98 schwarze 177: case 'h':
178: (void)strlcat(curp.outopts, "synopsis,", BUFSIZ);
1.105 schwarze 179: synopsis_only = 1;
1.106 schwarze 180: use_pager = 0;
1.98 schwarze 181: outmode = OUTMODE_ALL;
182: break;
1.90 schwarze 183: case 'I':
1.83 schwarze 184: if (strncmp(optarg, "os=", 3)) {
1.90 schwarze 185: fprintf(stderr,
1.93 schwarze 186: "%s: -I%s: Bad argument\n",
187: progname, optarg);
1.83 schwarze 188: return((int)MANDOCLEVEL_BADARG);
189: }
190: if (defos) {
1.90 schwarze 191: fprintf(stderr,
1.93 schwarze 192: "%s: -I%s: Duplicate argument\n",
193: progname, optarg);
1.83 schwarze 194: return((int)MANDOCLEVEL_BADARG);
195: }
196: defos = mandoc_strdup(optarg + 3);
197: break;
1.95 schwarze 198: case 'i':
199: outmode = OUTMODE_INT;
200: break;
1.103 schwarze 201: case 'K':
202: if ( ! koptions(&options, optarg))
203: return((int)MANDOCLEVEL_BADARG);
204: break;
1.95 schwarze 205: case 'k':
206: search.argmode = ARG_EXPR;
207: break;
1.96 schwarze 208: case 'l':
209: search.argmode = ARG_FILE;
210: outmode = OUTMODE_ALL;
211: break;
1.95 schwarze 212: case 'M':
213: defpaths = optarg;
214: break;
1.90 schwarze 215: case 'm':
1.95 schwarze 216: auxpaths = optarg;
1.1 kristaps 217: break;
1.90 schwarze 218: case 'O':
1.95 schwarze 219: search.outkey = optarg;
1.18 schwarze 220: (void)strlcat(curp.outopts, optarg, BUFSIZ);
221: (void)strlcat(curp.outopts, ",", BUFSIZ);
1.17 schwarze 222: break;
1.95 schwarze 223: case 'S':
224: search.arch = optarg;
225: break;
226: case 's':
227: search.sec = optarg;
228: break;
1.90 schwarze 229: case 'T':
1.22 schwarze 230: if ( ! toptions(&curp, optarg))
1.47 schwarze 231: return((int)MANDOCLEVEL_BADARG);
1.1 kristaps 232: break;
1.90 schwarze 233: case 'W':
1.45 schwarze 234: if ( ! woptions(&curp, optarg))
1.47 schwarze 235: return((int)MANDOCLEVEL_BADARG);
1.1 kristaps 236: break;
1.95 schwarze 237: case 'w':
238: outmode = OUTMODE_FLN;
239: break;
1.90 schwarze 240: case 'V':
1.3 schwarze 241: version();
242: /* NOTREACHED */
1.1 kristaps 243: default:
1.95 schwarze 244: show_usage = 1;
245: break;
246: }
247: }
248:
249: if (show_usage)
250: usage(search.argmode);
251:
252: /* Postprocess options. */
253:
254: if (outmode == OUTMODE_DEF) {
255: switch (search.argmode) {
256: case ARG_FILE:
257: outmode = OUTMODE_ALL;
258: use_pager = 0;
259: break;
260: case ARG_NAME:
261: outmode = OUTMODE_ONE;
262: break;
263: default:
264: outmode = OUTMODE_LST;
265: break;
266: }
267: }
268:
269: /* Parse arguments. */
270:
271: argc -= optind;
272: argv += optind;
273: resp = NULL;
274:
1.110 schwarze 275: /*
276: * Quirks for help(1)
277: * and for a man(1) section argument without -s.
278: */
279:
280: if (search.argmode == ARG_NAME) {
281: if (*progname == 'h') {
282: if (argc == 0) {
283: argv = help_argv;
284: argc = 1;
285: }
286: } else if (argv[0] != NULL &&
287: isdigit((unsigned char)argv[0][0]) &&
288: (argv[0][1] == '\0' || !strcmp(argv[0], "3p"))) {
289: search.sec = argv[0];
290: argv++;
291: argc--;
292: }
1.95 schwarze 293: }
294:
295: rc = MANDOCLEVEL_OK;
296:
297: /* man(1), whatis(1), apropos(1) */
298:
299: if (search.argmode != ARG_FILE) {
300: if (argc == 0)
301: usage(search.argmode);
1.107 schwarze 302:
303: if (search.argmode == ARG_NAME &&
304: outmode == OUTMODE_ONE)
305: search.firstmatch = 1;
1.95 schwarze 306:
307: /* Access the mandoc database. */
308:
309: manpath_parse(&paths, conf_file, defpaths, auxpaths);
310: mansearch_setup(1);
311: if( ! mansearch(&search, &paths, argc, argv, &res, &sz))
312: usage(search.argmode);
313: resp = res;
314:
315: if (sz == 0) {
316: if (search.argmode == ARG_NAME)
317: fprintf(stderr, "%s: No entry for %s "
318: "in the manual.\n", progname, argv[0]);
319: rc = MANDOCLEVEL_BADARG;
320: goto out;
321: }
322:
323: /*
324: * For standard man(1) and -a output mode,
325: * prepare for copying filename pointers
326: * into the program parameter array.
327: */
328:
329: if (outmode == OUTMODE_ONE) {
330: argc = 1;
331: best_prio = 10;
332: } else if (outmode == OUTMODE_ALL)
333: argc = (int)sz;
334:
335: /* Iterate all matching manuals. */
336:
337: for (i = 0; i < sz; i++) {
338: if (outmode == OUTMODE_FLN)
339: puts(res[i].file);
340: else if (outmode == OUTMODE_LST)
341: printf("%s - %s\n", res[i].names,
342: res[i].output == NULL ? "" :
343: res[i].output);
344: else if (outmode == OUTMODE_ONE) {
345: /* Search for the best section. */
346: isec = strcspn(res[i].file, "123456789");
347: sec = res[i].file[isec];
348: if ('\0' == sec)
349: continue;
350: prio = sec_prios[sec - '1'];
351: if (prio >= best_prio)
352: continue;
353: best_prio = prio;
354: resp = res + i;
355: }
1.1 kristaps 356: }
357:
1.95 schwarze 358: /*
359: * For man(1), -a and -i output mode, fall through
360: * to the main mandoc(1) code iterating files
361: * and running the parsers on each of them.
362: */
363:
364: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
365: goto out;
366: }
367:
368: /* mandoc(1) */
369:
370: if ( ! moptions(&options, auxpaths))
371: return((int)MANDOCLEVEL_BADARG);
372:
373: if (use_pager && isatty(STDOUT_FILENO))
374: spawn_pager();
375:
1.102 schwarze 376: curp.mchars = mchars_alloc();
377: curp.mp = mparse_alloc(options, curp.wlevel, mmsg,
378: curp.mchars, defos);
1.76 schwarze 379:
1.80 schwarze 380: /*
381: * Conditionally start up the lookaside buffer before parsing.
382: */
383: if (OUTT_MAN == curp.outtype)
384: mparse_keep(curp.mp);
385:
1.95 schwarze 386: if (argc == 0)
1.76 schwarze 387: parse(&curp, STDIN_FILENO, "<stdin>", &rc);
1.27 schwarze 388:
1.95 schwarze 389: while (argc) {
390: if (resp != NULL) {
1.108 schwarze 391: rc = mparse_open(curp.mp, &fd, resp->file);
1.100 schwarze 392: if (fd == -1)
393: /* nothing */;
394: else if (resp->form & FORM_SRC) {
1.97 schwarze 395: /* For .so only; ignore failure. */
396: chdir(paths.paths[resp->ipath]);
1.100 schwarze 397: parse(&curp, fd, resp->file, &rc);
1.97 schwarze 398: } else
1.105 schwarze 399: rc = passthrough(resp->file, fd,
400: synopsis_only);
1.95 schwarze 401: resp++;
1.100 schwarze 402: } else {
1.108 schwarze 403: rc = mparse_open(curp.mp, &fd, *argv++);
1.100 schwarze 404: if (fd != -1)
405: parse(&curp, fd, argv[-1], &rc);
406: }
407:
1.108 schwarze 408: if (mparse_wait(curp.mp) != MANDOCLEVEL_OK)
1.100 schwarze 409: rc = MANDOCLEVEL_SYSERR;
410:
1.76 schwarze 411: if (MANDOCLEVEL_OK != rc && curp.wstop)
1.27 schwarze 412: break;
1.95 schwarze 413: argc--;
1.1 kristaps 414: }
415:
416: if (curp.outfree)
417: (*curp.outfree)(curp.outdata);
1.102 schwarze 418: mparse_free(curp.mp);
419: mchars_free(curp.mchars);
1.95 schwarze 420:
421: out:
422: if (search.argmode != ARG_FILE) {
1.97 schwarze 423: manpath_free(&paths);
1.95 schwarze 424: mansearch_free(res, sz);
425: mansearch_setup(0);
426: }
427:
1.83 schwarze 428: free(defos);
1.1 kristaps 429:
1.76 schwarze 430: return((int)rc);
1.1 kristaps 431: }
432:
1.20 schwarze 433: static void
1.3 schwarze 434: version(void)
435: {
436:
1.95 schwarze 437: printf("mandoc %s\n", VERSION);
1.47 schwarze 438: exit((int)MANDOCLEVEL_OK);
1.3 schwarze 439: }
440:
1.20 schwarze 441: static void
1.95 schwarze 442: usage(enum argmode argmode)
1.1 kristaps 443: {
444:
1.95 schwarze 445: switch (argmode) {
446: case ARG_FILE:
1.98 schwarze 447: fputs("usage: mandoc [-acfhklV] [-Ios=name] "
1.104 jmc 448: "[-Kencoding] [-mformat] [-Ooption]\n"
449: "\t [-Toutput] [-Wlevel] [file ...]\n", stderr);
1.95 schwarze 450: break;
451: case ARG_NAME:
1.96 schwarze 452: fputs("usage: man [-acfhklVw] [-C file] "
1.95 schwarze 453: "[-M path] [-m path] [-S arch] [-s section]\n"
454: "\t [section] name ...\n", stderr);
455: break;
456: case ARG_WORD:
1.98 schwarze 457: fputs("usage: whatis [-acfhklVw] [-C file] "
1.96 schwarze 458: "[-M path] [-m path] [-O outkey] [-S arch]\n"
459: "\t [-s section] name ...\n", stderr);
1.95 schwarze 460: break;
461: case ARG_EXPR:
1.98 schwarze 462: fputs("usage: apropos [-acfhklVw] [-C file] "
1.96 schwarze 463: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.95 schwarze 464: "\t [-s section] expression ...\n", stderr);
465: break;
466: }
1.47 schwarze 467: exit((int)MANDOCLEVEL_BADARG);
1.1 kristaps 468: }
469:
1.27 schwarze 470: static void
1.90 schwarze 471: parse(struct curparse *curp, int fd, const char *file,
472: enum mandoclevel *level)
1.52 schwarze 473: {
1.76 schwarze 474: enum mandoclevel rc;
475: struct mdoc *mdoc;
476: struct man *man;
1.52 schwarze 477:
1.76 schwarze 478: /* Begin by parsing the file itself. */
1.52 schwarze 479:
1.76 schwarze 480: assert(file);
481: assert(fd >= -1);
1.52 schwarze 482:
1.76 schwarze 483: rc = mparse_readfd(curp->mp, fd, file);
1.1 kristaps 484:
1.76 schwarze 485: /* Stop immediately if the parse has failed. */
1.1 kristaps 486:
1.76 schwarze 487: if (MANDOCLEVEL_FATAL <= rc)
1.51 schwarze 488: goto cleanup;
489:
490: /*
1.76 schwarze 491: * With -Wstop and warnings or errors of at least the requested
492: * level, do not produce output.
1.51 schwarze 493: */
494:
1.76 schwarze 495: if (MANDOCLEVEL_OK != rc && curp->wstop)
1.51 schwarze 496: goto cleanup;
497:
498: /* If unset, allocate output dev now (if applicable). */
499:
500: if ( ! (curp->outman && curp->outmdoc)) {
501: switch (curp->outtype) {
1.90 schwarze 502: case OUTT_HTML:
1.102 schwarze 503: curp->outdata = html_alloc(curp->mchars,
504: curp->outopts);
1.77 schwarze 505: curp->outfree = html_free;
506: break;
1.90 schwarze 507: case OUTT_UTF8:
1.102 schwarze 508: curp->outdata = utf8_alloc(curp->mchars,
509: curp->outopts);
1.77 schwarze 510: curp->outfree = ascii_free;
511: break;
1.90 schwarze 512: case OUTT_LOCALE:
1.102 schwarze 513: curp->outdata = locale_alloc(curp->mchars,
514: curp->outopts);
1.77 schwarze 515: curp->outfree = ascii_free;
1.51 schwarze 516: break;
1.90 schwarze 517: case OUTT_ASCII:
1.102 schwarze 518: curp->outdata = ascii_alloc(curp->mchars,
519: curp->outopts);
1.51 schwarze 520: curp->outfree = ascii_free;
521: break;
1.90 schwarze 522: case OUTT_PDF:
1.102 schwarze 523: curp->outdata = pdf_alloc(curp->mchars,
524: curp->outopts);
1.51 schwarze 525: curp->outfree = pspdf_free;
526: break;
1.90 schwarze 527: case OUTT_PS:
1.102 schwarze 528: curp->outdata = ps_alloc(curp->mchars,
529: curp->outopts);
1.51 schwarze 530: curp->outfree = pspdf_free;
531: break;
532: default:
533: break;
534: }
535:
536: switch (curp->outtype) {
1.90 schwarze 537: case OUTT_HTML:
1.51 schwarze 538: curp->outman = html_man;
539: curp->outmdoc = html_mdoc;
540: break;
1.90 schwarze 541: case OUTT_TREE:
1.51 schwarze 542: curp->outman = tree_man;
543: curp->outmdoc = tree_mdoc;
544: break;
1.90 schwarze 545: case OUTT_MAN:
1.78 schwarze 546: curp->outmdoc = man_mdoc;
1.80 schwarze 547: curp->outman = man_man;
1.78 schwarze 548: break;
1.90 schwarze 549: case OUTT_PDF:
1.51 schwarze 550: /* FALLTHROUGH */
1.90 schwarze 551: case OUTT_ASCII:
1.51 schwarze 552: /* FALLTHROUGH */
1.90 schwarze 553: case OUTT_UTF8:
1.77 schwarze 554: /* FALLTHROUGH */
1.90 schwarze 555: case OUTT_LOCALE:
1.77 schwarze 556: /* FALLTHROUGH */
1.90 schwarze 557: case OUTT_PS:
1.51 schwarze 558: curp->outman = terminal_man;
559: curp->outmdoc = terminal_mdoc;
560: break;
561: default:
562: break;
563: }
564: }
565:
1.88 schwarze 566: mparse_result(curp->mp, &mdoc, &man, NULL);
1.76 schwarze 567:
1.51 schwarze 568: /* Execute the out device, if it exists. */
569:
1.76 schwarze 570: if (man && curp->outman)
571: (*curp->outman)(curp->outdata, man);
572: if (mdoc && curp->outmdoc)
573: (*curp->outmdoc)(curp->outdata, mdoc);
1.51 schwarze 574:
575: cleanup:
1.59 schwarze 576:
1.76 schwarze 577: mparse_reset(curp->mp);
1.59 schwarze 578:
1.76 schwarze 579: if (*level < rc)
580: *level = rc;
1.1 kristaps 581: }
582:
1.95 schwarze 583: static enum mandoclevel
1.105 schwarze 584: passthrough(const char *file, int fd, int synopsis_only)
1.95 schwarze 585: {
1.105 schwarze 586: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
587: const char synr[] = "SYNOPSIS";
588:
589: FILE *stream;
1.95 schwarze 590: const char *syscall;
1.105 schwarze 591: char *line;
592: size_t len, off;
593: ssize_t nw;
594: int print;
595:
596: if ((stream = fdopen(fd, "r")) == NULL) {
597: close(fd);
598: syscall = "fdopen";
599: goto fail;
600: }
1.95 schwarze 601:
1.105 schwarze 602: print = 0;
603: while ((line = fgetln(stream, &len)) != NULL) {
604: if (synopsis_only) {
605: if (print) {
606: if ( ! isspace((unsigned char)*line))
607: goto done;
608: while (len &&
609: isspace((unsigned char)*line)) {
610: line++;
611: len--;
612: }
613: } else {
614: if ((len == sizeof(synb) &&
615: ! strncmp(line, synb, len - 1)) ||
616: (len == sizeof(synr) &&
617: ! strncmp(line, synr, len - 1)))
618: print = 1;
619: continue;
620: }
621: }
622: for (off = 0; off < len; off += nw)
623: if ((nw = write(STDOUT_FILENO, line + off,
624: len - off)) == -1 || nw == 0) {
625: fclose(stream);
1.95 schwarze 626: syscall = "write";
627: goto fail;
628: }
1.105 schwarze 629: }
1.95 schwarze 630:
1.105 schwarze 631: if (ferror(stream)) {
632: fclose(stream);
633: syscall = "fgetln";
634: goto fail;
635: }
1.101 schwarze 636:
1.105 schwarze 637: done:
638: fclose(stream);
639: return(MANDOCLEVEL_OK);
1.95 schwarze 640:
641: fail:
642: fprintf(stderr, "%s: %s: SYSERR: %s: %s",
643: progname, file, syscall, strerror(errno));
644: return(MANDOCLEVEL_SYSERR);
1.103 schwarze 645: }
646:
647: static int
648: koptions(int *options, char *arg)
649: {
650:
651: if ( ! strcmp(arg, "utf-8")) {
652: *options |= MPARSE_UTF8;
653: *options &= ~MPARSE_LATIN1;
654: } else if ( ! strcmp(arg, "iso-8859-1")) {
655: *options |= MPARSE_LATIN1;
656: *options &= ~MPARSE_UTF8;
657: } else if ( ! strcmp(arg, "us-ascii")) {
658: *options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
659: } else {
660: fprintf(stderr, "%s: -K%s: Bad argument\n",
661: progname, arg);
662: return(0);
663: }
664: return(1);
1.95 schwarze 665: }
666:
1.1 kristaps 667: static int
1.87 schwarze 668: moptions(int *options, char *arg)
1.1 kristaps 669: {
670:
1.95 schwarze 671: if (arg == NULL)
672: /* nothing to do */;
673: else if (0 == strcmp(arg, "doc"))
1.87 schwarze 674: *options |= MPARSE_MDOC;
1.1 kristaps 675: else if (0 == strcmp(arg, "andoc"))
1.87 schwarze 676: /* nothing to do */;
1.1 kristaps 677: else if (0 == strcmp(arg, "an"))
1.87 schwarze 678: *options |= MPARSE_MAN;
1.1 kristaps 679: else {
1.93 schwarze 680: fprintf(stderr, "%s: -m%s: Bad argument\n",
681: progname, arg);
1.1 kristaps 682: return(0);
683: }
684:
685: return(1);
686: }
687:
688: static int
1.22 schwarze 689: toptions(struct curparse *curp, char *arg)
1.1 kristaps 690: {
691:
692: if (0 == strcmp(arg, "ascii"))
1.22 schwarze 693: curp->outtype = OUTT_ASCII;
694: else if (0 == strcmp(arg, "lint")) {
695: curp->outtype = OUTT_LINT;
1.45 schwarze 696: curp->wlevel = MANDOCLEVEL_WARNING;
1.76 schwarze 697: } else if (0 == strcmp(arg, "tree"))
1.22 schwarze 698: curp->outtype = OUTT_TREE;
1.78 schwarze 699: else if (0 == strcmp(arg, "man"))
700: curp->outtype = OUTT_MAN;
1.17 schwarze 701: else if (0 == strcmp(arg, "html"))
1.22 schwarze 702: curp->outtype = OUTT_HTML;
1.77 schwarze 703: else if (0 == strcmp(arg, "utf8"))
704: curp->outtype = OUTT_UTF8;
705: else if (0 == strcmp(arg, "locale"))
706: curp->outtype = OUTT_LOCALE;
1.21 schwarze 707: else if (0 == strcmp(arg, "xhtml"))
1.102 schwarze 708: curp->outtype = OUTT_HTML;
1.36 schwarze 709: else if (0 == strcmp(arg, "ps"))
710: curp->outtype = OUTT_PS;
1.43 schwarze 711: else if (0 == strcmp(arg, "pdf"))
712: curp->outtype = OUTT_PDF;
1.1 kristaps 713: else {
1.93 schwarze 714: fprintf(stderr, "%s: -T%s: Bad argument\n",
715: progname, arg);
1.1 kristaps 716: return(0);
717: }
718:
719: return(1);
720: }
721:
722: static int
1.45 schwarze 723: woptions(struct curparse *curp, char *arg)
1.1 kristaps 724: {
1.10 schwarze 725: char *v, *o;
1.90 schwarze 726: const char *toks[6];
1.1 kristaps 727:
1.45 schwarze 728: toks[0] = "stop";
729: toks[1] = "all";
730: toks[2] = "warning";
731: toks[3] = "error";
732: toks[4] = "fatal";
733: toks[5] = NULL;
1.1 kristaps 734:
1.10 schwarze 735: while (*arg) {
736: o = arg;
1.17 schwarze 737: switch (getsubopt(&arg, UNCONST(toks), &v)) {
1.90 schwarze 738: case 0:
1.45 schwarze 739: curp->wstop = 1;
1.1 kristaps 740: break;
1.90 schwarze 741: case 1:
1.45 schwarze 742: /* FALLTHROUGH */
1.90 schwarze 743: case 2:
1.45 schwarze 744: curp->wlevel = MANDOCLEVEL_WARNING;
1.1 kristaps 745: break;
1.90 schwarze 746: case 3:
1.45 schwarze 747: curp->wlevel = MANDOCLEVEL_ERROR;
1.1 kristaps 748: break;
1.90 schwarze 749: case 4:
1.45 schwarze 750: curp->wlevel = MANDOCLEVEL_FATAL;
1.19 schwarze 751: break;
1.1 kristaps 752: default:
1.93 schwarze 753: fprintf(stderr, "%s: -W%s: Bad argument\n",
754: progname, o);
1.1 kristaps 755: return(0);
756: }
1.10 schwarze 757: }
1.1 kristaps 758:
759: return(1);
760: }
761:
1.75 schwarze 762: static void
1.90 schwarze 763: mmsg(enum mandocerr t, enum mandoclevel lvl,
1.76 schwarze 764: const char *file, int line, int col, const char *msg)
1.30 schwarze 765: {
1.94 schwarze 766: const char *mparse_msg;
1.45 schwarze 767:
1.92 schwarze 768: fprintf(stderr, "%s: %s:", progname, file);
769:
770: if (line)
771: fprintf(stderr, "%d:%d:", line, col + 1);
772:
1.94 schwarze 773: fprintf(stderr, " %s", mparse_strlevel(lvl));
774:
775: if (NULL != (mparse_msg = mparse_strerror(t)))
776: fprintf(stderr, ": %s", mparse_msg);
1.30 schwarze 777:
778: if (msg)
779: fprintf(stderr, ": %s", msg);
1.76 schwarze 780:
1.30 schwarze 781: fputc('\n', stderr);
1.95 schwarze 782: }
783:
784: static void
785: spawn_pager(void)
786: {
787: #define MAX_PAGER_ARGS 16
788: char *argv[MAX_PAGER_ARGS];
789: const char *pager;
790: char *cp;
791: int fildes[2];
792: int argc;
793:
794: if (pipe(fildes) == -1) {
795: fprintf(stderr, "%s: pipe: %s\n",
796: progname, strerror(errno));
797: return;
798: }
799:
800: switch (fork()) {
801: case -1:
802: fprintf(stderr, "%s: fork: %s\n",
803: progname, strerror(errno));
804: exit((int)MANDOCLEVEL_SYSERR);
805: case 0:
806: close(fildes[0]);
807: if (dup2(fildes[1], STDOUT_FILENO) == -1) {
808: fprintf(stderr, "%s: dup output: %s\n",
809: progname, strerror(errno));
810: exit((int)MANDOCLEVEL_SYSERR);
811: }
812: return;
813: default:
814: break;
815: }
816:
817: /* The original process becomes the pager. */
818:
819: close(fildes[1]);
820: if (dup2(fildes[0], STDIN_FILENO) == -1) {
821: fprintf(stderr, "%s: dup input: %s\n",
822: progname, strerror(errno));
823: exit((int)MANDOCLEVEL_SYSERR);
824: }
825:
826: pager = getenv("MANPAGER");
827: if (pager == NULL || *pager == '\0')
828: pager = getenv("PAGER");
829: if (pager == NULL || *pager == '\0')
830: pager = "/usr/bin/more -s";
831: cp = mandoc_strdup(pager);
832:
833: /*
834: * Parse the pager command into words.
835: * Intentionally do not do anything fancy here.
836: */
837:
838: argc = 0;
839: while (argc + 1 < MAX_PAGER_ARGS) {
840: argv[argc++] = cp;
841: cp = strchr(cp, ' ');
842: if (cp == NULL)
843: break;
844: *cp++ = '\0';
845: while (*cp == ' ')
846: cp++;
847: if (*cp == '\0')
848: break;
849: }
850: argv[argc] = NULL;
851:
852: /* Hand over to the pager. */
853:
854: execvp(argv[0], argv);
855: fprintf(stderr, "%s: exec: %s\n",
856: progname, strerror(errno));
857: exit((int)MANDOCLEVEL_SYSERR);
1.30 schwarze 858: }
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