Annotation of mandoc/main.c, Revision 1.349
1.349 ! schwarze 1: /* $Id: main.c,v 1.348 2020/04/02 22:12:55 schwarze Exp $ */
1.1 kristaps 2: /*
1.345 schwarze 3: * Copyright (c) 2010-2012, 2014-2020 Ingo Schwarze <schwarze@openbsd.org>
1.183 schwarze 4: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
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.
1.345 schwarze 18: *
19: * Main program for mandoc(1), man(1), apropos(1), whatis(1), and help(1).
1.1 kristaps 20: */
1.58 kristaps 21: #include "config.h"
1.178 schwarze 22:
23: #include <sys/types.h>
1.304 schwarze 24: #include <sys/ioctl.h>
1.216 schwarze 25: #include <sys/param.h> /* MACHINE */
1.326 schwarze 26: #include <sys/stat.h>
1.224 schwarze 27: #include <sys/wait.h>
1.58 kristaps 28:
1.1 kristaps 29: #include <assert.h>
1.185 schwarze 30: #include <ctype.h>
1.256 schwarze 31: #if HAVE_ERR
1.247 schwarze 32: #include <err.h>
1.256 schwarze 33: #endif
1.258 schwarze 34: #include <errno.h>
1.186 schwarze 35: #include <fcntl.h>
1.222 schwarze 36: #include <glob.h>
1.341 schwarze 37: #include <limits.h>
1.269 kristaps 38: #if HAVE_SANDBOX_INIT
39: #include <sandbox.h>
40: #endif
1.226 schwarze 41: #include <signal.h>
1.1 kristaps 42: #include <stdio.h>
1.45 kristaps 43: #include <stdint.h>
1.1 kristaps 44: #include <stdlib.h>
45: #include <string.h>
1.321 schwarze 46: #include <termios.h>
1.265 schwarze 47: #include <time.h>
1.1 kristaps 48: #include <unistd.h>
49:
1.231 schwarze 50: #include "mandoc_aux.h"
1.71 kristaps 51: #include "mandoc.h"
1.294 schwarze 52: #include "mandoc_xr.h"
1.231 schwarze 53: #include "roff.h"
1.1 kristaps 54: #include "mdoc.h"
1.10 kristaps 55: #include "man.h"
1.311 schwarze 56: #include "mandoc_parse.h"
1.348 schwarze 57: #include "tag.h"
1.345 schwarze 58: #include "term_tag.h"
1.231 schwarze 59: #include "main.h"
1.229 schwarze 60: #include "manconf.h"
1.180 schwarze 61: #include "mansearch.h"
1.16 kristaps 62:
1.181 schwarze 63: enum outmode {
64: OUTMODE_DEF = 0,
65: OUTMODE_FLN,
66: OUTMODE_LST,
67: OUTMODE_ALL,
68: OUTMODE_ONE
69: };
70:
1.19 kristaps 71: enum outt {
1.154 kristaps 72: OUTT_ASCII = 0, /* -Tascii */
1.162 kristaps 73: OUTT_LOCALE, /* -Tlocale */
1.163 kristaps 74: OUTT_UTF8, /* -Tutf8 */
1.154 kristaps 75: OUTT_TREE, /* -Ttree */
1.164 schwarze 76: OUTT_MAN, /* -Tman */
1.154 kristaps 77: OUTT_HTML, /* -Thtml */
1.285 schwarze 78: OUTT_MARKDOWN, /* -Tmarkdown */
1.154 kristaps 79: OUTT_LINT, /* -Tlint */
80: OUTT_PS, /* -Tps */
81: OUTT_PDF /* -Tpdf */
1.19 kristaps 82: };
83:
1.335 schwarze 84: struct outstate {
1.336 schwarze 85: struct tag_files *tag_files; /* Tagging state variables. */
1.293 schwarze 86: void *outdata; /* data for output */
1.336 schwarze 87: int use_pager;
1.148 kristaps 88: int wstop; /* stop after a file with a warning */
1.337 schwarze 89: int had_output; /* Some output was generated. */
1.173 schwarze 90: enum outt outtype; /* which output to use */
1.79 kristaps 91: };
1.270 schwarze 92:
93:
94: int mandocdb(int, char *[]);
1.79 kristaps 95:
1.312 schwarze 96: static void check_xr(void);
1.213 schwarze 97: static int fs_lookup(const struct manpaths *,
98: size_t ipath, const char *,
99: const char *, const char *,
100: struct manpage **, size_t *);
1.295 schwarze 101: static int fs_search(const struct mansearch *,
1.340 schwarze 102: const struct manpaths *, const char *,
1.213 schwarze 103: struct manpage **, size_t *);
1.344 schwarze 104: static void glob_esc(char **, const char *, const char *);
1.335 schwarze 105: static void outdata_alloc(struct outstate *, struct manoutput *);
1.334 schwarze 106: static void parse(struct mparse *, int, const char *,
1.335 schwarze 107: struct outstate *, struct manoutput *);
1.329 schwarze 108: static void passthrough(int, int);
1.337 schwarze 109: static void process_onefile(struct mparse *, struct manpage *,
110: int, struct outstate *, struct manconf *);
1.348 schwarze 111: static void run_pager(struct tag_files *, char *);
112: static pid_t spawn_pager(struct tag_files *, char *);
1.283 schwarze 113: static void usage(enum argmode) __attribute__((__noreturn__));
1.334 schwarze 114: static int woptions(char *, enum mandoc_os *, int *);
1.1 kristaps 115:
1.182 schwarze 116: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.202 schwarze 117: static char help_arg[] = "help";
118: static char *help_argv[] = {help_arg, NULL};
1.1 kristaps 119:
1.173 schwarze 120:
1.1 kristaps 121: int
122: main(int argc, char *argv[])
123: {
1.334 schwarze 124: struct manconf conf; /* Manpaths and output options. */
1.335 schwarze 125: struct outstate outst; /* Output state. */
1.334 schwarze 126: struct winsize ws; /* Result of ioctl(TIOCGWINSZ). */
127: struct mansearch search; /* Search options. */
1.338 schwarze 128: struct manpage *res; /* Complete list of search results. */
129: struct manpage *resn; /* Search results for one name. */
1.334 schwarze 130: struct mparse *mp; /* Opaque parser object. */
131: const char *conf_file; /* -C: alternate config file. */
132: const char *os_s; /* -I: Operating system for display. */
1.337 schwarze 133: const char *progname, *sec;
1.334 schwarze 134: char *defpaths; /* -M: override manpaths. */
135: char *auxpaths; /* -m: additional manpaths. */
136: char *oarg; /* -O: output option string. */
137: char *tagarg; /* -O tag: default value. */
1.207 schwarze 138: unsigned char *uc;
1.338 schwarze 139: size_t ressz; /* Number of elements in res[]. */
140: size_t resnsz; /* Number of elements in resn[]. */
141: size_t i, ib, ssz;
1.334 schwarze 142: int options; /* Parser options. */
143: int show_usage; /* Invalid argument: give up. */
1.230 schwarze 144: int prio, best_prio;
1.337 schwarze 145: int startdir;
1.180 schwarze 146: int c;
1.334 schwarze 147: enum mandoc_os os_e; /* Check base system conventions. */
148: enum outmode outmode; /* According to command line. */
1.1 kristaps 149:
1.254 schwarze 150: #if HAVE_PROGNAME
151: progname = getprogname();
152: #else
1.219 schwarze 153: if (argc < 1)
1.254 schwarze 154: progname = mandoc_strdup("mandoc");
155: else if ((progname = strrchr(argv[0], '/')) == NULL)
156: progname = argv[0];
1.54 kristaps 157: else
1.254 schwarze 158: ++progname;
159: setprogname(progname);
1.247 schwarze 160: #endif
1.203 schwarze 161:
1.317 schwarze 162: mandoc_msg_setoutfile(stderr);
1.254 schwarze 163: if (strncmp(progname, "mandocdb", 8) == 0 ||
164: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 165: return mandocdb(argc, argv);
1.179 schwarze 166:
1.255 schwarze 167: #if HAVE_PLEDGE
1.329 schwarze 168: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
169: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
170: return mandoc_msg_getrc();
171: }
1.269 kristaps 172: #endif
173: #if HAVE_SANDBOX_INIT
174: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
175: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 176: #endif
177:
1.180 schwarze 178: /* Search options. */
179:
1.229 schwarze 180: memset(&conf, 0, sizeof(conf));
1.334 schwarze 181: conf_file = NULL;
182: defpaths = auxpaths = NULL;
1.180 schwarze 183:
184: memset(&search, 0, sizeof(struct mansearch));
185: search.outkey = "Nd";
1.282 schwarze 186: oarg = NULL;
1.180 schwarze 187:
1.254 schwarze 188: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 189: search.argmode = ARG_NAME;
1.254 schwarze 190: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 191: search.argmode = ARG_EXPR;
1.254 schwarze 192: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 193: search.argmode = ARG_WORD;
1.254 schwarze 194: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 195: search.argmode = ARG_NAME;
1.180 schwarze 196: else
197: search.argmode = ARG_FILE;
198:
1.335 schwarze 199: /* Parser options. */
1.54 kristaps 200:
1.335 schwarze 201: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.334 schwarze 202: os_e = MANDOC_OS_OTHER;
203: os_s = NULL;
1.335 schwarze 204:
205: /* Formatter options. */
206:
207: memset(&outst, 0, sizeof(outst));
1.336 schwarze 208: outst.tag_files = NULL;
1.335 schwarze 209: outst.outtype = OUTT_LOCALE;
1.336 schwarze 210: outst.use_pager = 1;
1.19 kristaps 211:
1.180 schwarze 212: show_usage = 0;
1.181 schwarze 213: outmode = OUTMODE_DEF;
1.183 schwarze 214:
1.289 schwarze 215: while ((c = getopt(argc, argv,
216: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
217: if (c == 'i' && search.argmode == ARG_EXPR) {
218: optind--;
219: break;
220: }
1.1 kristaps 221: switch (c) {
1.181 schwarze 222: case 'a':
223: outmode = OUTMODE_ALL;
224: break;
1.180 schwarze 225: case 'C':
226: conf_file = optarg;
227: break;
1.183 schwarze 228: case 'c':
1.336 schwarze 229: outst.use_pager = 0;
1.183 schwarze 230: break;
1.180 schwarze 231: case 'f':
232: search.argmode = ARG_WORD;
233: break;
1.190 schwarze 234: case 'h':
1.230 schwarze 235: conf.output.synopsisonly = 1;
1.336 schwarze 236: outst.use_pager = 0;
1.190 schwarze 237: outmode = OUTMODE_ALL;
238: break;
1.173 schwarze 239: case 'I':
1.329 schwarze 240: if (strncmp(optarg, "os=", 3) != 0) {
241: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
242: "-I %s", optarg);
243: return mandoc_msg_getrc();
1.166 schwarze 244: }
1.334 schwarze 245: if (os_s != NULL) {
1.329 schwarze 246: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
247: "-I %s", optarg);
248: return mandoc_msg_getrc();
1.166 schwarze 249: }
1.334 schwarze 250: os_s = optarg + 3;
1.181 schwarze 251: break;
1.194 schwarze 252: case 'K':
1.329 schwarze 253: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
254: if (strcmp(optarg, "utf-8") == 0)
255: options |= MPARSE_UTF8;
256: else if (strcmp(optarg, "iso-8859-1") == 0)
257: options |= MPARSE_LATIN1;
258: else if (strcmp(optarg, "us-ascii") != 0) {
259: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
260: "-K %s", optarg);
261: return mandoc_msg_getrc();
262: }
1.194 schwarze 263: break;
1.180 schwarze 264: case 'k':
265: search.argmode = ARG_EXPR;
266: break;
1.188 schwarze 267: case 'l':
268: search.argmode = ARG_FILE;
269: outmode = OUTMODE_ALL;
270: break;
1.180 schwarze 271: case 'M':
272: defpaths = optarg;
273: break;
1.173 schwarze 274: case 'm':
1.180 schwarze 275: auxpaths = optarg;
1.10 kristaps 276: break;
1.173 schwarze 277: case 'O':
1.282 schwarze 278: oarg = optarg;
1.44 kristaps 279: break;
1.180 schwarze 280: case 'S':
281: search.arch = optarg;
282: break;
283: case 's':
284: search.sec = optarg;
285: break;
1.173 schwarze 286: case 'T':
1.329 schwarze 287: if (strcmp(optarg, "ascii") == 0)
1.335 schwarze 288: outst.outtype = OUTT_ASCII;
1.329 schwarze 289: else if (strcmp(optarg, "lint") == 0) {
1.335 schwarze 290: outst.outtype = OUTT_LINT;
1.329 schwarze 291: mandoc_msg_setoutfile(stdout);
292: mandoc_msg_setmin(MANDOCERR_BASE);
293: } else if (strcmp(optarg, "tree") == 0)
1.335 schwarze 294: outst.outtype = OUTT_TREE;
1.329 schwarze 295: else if (strcmp(optarg, "man") == 0)
1.335 schwarze 296: outst.outtype = OUTT_MAN;
1.329 schwarze 297: else if (strcmp(optarg, "html") == 0)
1.335 schwarze 298: outst.outtype = OUTT_HTML;
1.329 schwarze 299: else if (strcmp(optarg, "markdown") == 0)
1.335 schwarze 300: outst.outtype = OUTT_MARKDOWN;
1.329 schwarze 301: else if (strcmp(optarg, "utf8") == 0)
1.335 schwarze 302: outst.outtype = OUTT_UTF8;
1.329 schwarze 303: else if (strcmp(optarg, "locale") == 0)
1.335 schwarze 304: outst.outtype = OUTT_LOCALE;
1.329 schwarze 305: else if (strcmp(optarg, "ps") == 0)
1.335 schwarze 306: outst.outtype = OUTT_PS;
1.329 schwarze 307: else if (strcmp(optarg, "pdf") == 0)
1.335 schwarze 308: outst.outtype = OUTT_PDF;
1.329 schwarze 309: else {
310: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
311: "-T %s", optarg);
312: return mandoc_msg_getrc();
313: }
1.1 kristaps 314: break;
1.173 schwarze 315: case 'W':
1.335 schwarze 316: if (woptions(optarg, &os_e, &outst.wstop) == -1)
1.329 schwarze 317: return mandoc_msg_getrc();
1.1 kristaps 318: break;
1.181 schwarze 319: case 'w':
320: outmode = OUTMODE_FLN;
321: break;
1.1 kristaps 322: default:
1.180 schwarze 323: show_usage = 1;
324: break;
1.1 kristaps 325: }
1.180 schwarze 326: }
327:
328: if (show_usage)
329: usage(search.argmode);
330:
1.185 schwarze 331: /* Postprocess options. */
332:
1.342 schwarze 333: switch (outmode) {
334: case OUTMODE_DEF:
1.181 schwarze 335: switch (search.argmode) {
336: case ARG_FILE:
337: outmode = OUTMODE_ALL;
1.336 schwarze 338: outst.use_pager = 0;
1.181 schwarze 339: break;
340: case ARG_NAME:
341: outmode = OUTMODE_ONE;
342: break;
343: default:
344: outmode = OUTMODE_LST;
345: break;
1.282 schwarze 346: }
1.342 schwarze 347: break;
348: case OUTMODE_FLN:
349: if (search.argmode == ARG_FILE)
350: outmode = OUTMODE_ALL;
351: break;
352: case OUTMODE_ALL:
353: break;
354: case OUTMODE_LST:
355: case OUTMODE_ONE:
356: abort();
1.282 schwarze 357: }
358:
359: if (oarg != NULL) {
360: if (outmode == OUTMODE_LST)
361: search.outkey = oarg;
362: else {
363: while (oarg != NULL) {
364: if (manconf_output(&conf.output,
1.327 schwarze 365: strsep(&oarg, ","), 0) == -1)
1.329 schwarze 366: return mandoc_msg_getrc();
1.282 schwarze 367: }
1.181 schwarze 368: }
369: }
370:
1.335 schwarze 371: if (outst.outtype != OUTT_TREE || conf.output.noval == 0)
1.315 schwarze 372: options |= MPARSE_VALIDATE;
373:
1.246 schwarze 374: if (outmode == OUTMODE_FLN ||
375: outmode == OUTMODE_LST ||
376: !isatty(STDOUT_FILENO))
1.336 schwarze 377: outst.use_pager = 0;
1.304 schwarze 378:
1.336 schwarze 379: if (outst.use_pager &&
1.304 schwarze 380: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 381: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
382: ws.ws_col > 1) {
1.304 schwarze 383: if (conf.output.width == 0 && ws.ws_col < 79)
384: conf.output.width = ws.ws_col - 1;
385: if (conf.output.indent == 0 && ws.ws_col < 66)
386: conf.output.indent = 3;
387: }
1.246 schwarze 388:
1.255 schwarze 389: #if HAVE_PLEDGE
1.336 schwarze 390: if (outst.use_pager == 0) {
1.329 schwarze 391: if (pledge("stdio rpath", NULL) == -1) {
392: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
393: "%s", strerror(errno));
394: return mandoc_msg_getrc();
395: }
396: }
1.255 schwarze 397: #endif
398:
1.185 schwarze 399: /* Parse arguments. */
400:
1.219 schwarze 401: if (argc > 0) {
402: argc -= optind;
403: argv += optind;
404: }
1.185 schwarze 405:
1.202 schwarze 406: /*
1.338 schwarze 407: * Quirks for help(1) and man(1),
408: * in particular for a section argument without -s.
1.202 schwarze 409: */
410:
411: if (search.argmode == ARG_NAME) {
1.254 schwarze 412: if (*progname == 'h') {
1.202 schwarze 413: if (argc == 0) {
414: argv = help_argv;
415: argc = 1;
416: }
1.211 schwarze 417: } else if (argc > 1 &&
1.223 kristaps 418: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 419: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.324 schwarze 420: isalpha(uc[1]))) ||
1.207 schwarze 421: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 422: search.sec = (char *)uc;
1.202 schwarze 423: argv++;
424: argc--;
425: }
1.216 schwarze 426: if (search.arch == NULL)
427: search.arch = getenv("MACHINE");
1.223 kristaps 428: #ifdef MACHINE
1.216 schwarze 429: if (search.arch == NULL)
430: search.arch = MACHINE;
1.223 kristaps 431: #endif
1.338 schwarze 432: if (outmode == OUTMODE_ONE)
433: search.firstmatch = 1;
1.185 schwarze 434: }
1.182 schwarze 435:
1.316 schwarze 436: /*
437: * Use the first argument for -O tag in addition to
438: * using it as a search term for man(1) or apropos(1).
439: */
440:
441: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
442: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
443: strchr(*argv, '=') : NULL;
444: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
445: }
446:
1.338 schwarze 447: /* Read the configuration file. */
1.180 schwarze 448:
1.338 schwarze 449: if (search.argmode != ARG_FILE)
450: manconf_parse(&conf, conf_file, defpaths, auxpaths);
1.182 schwarze 451:
1.338 schwarze 452: /* man(1): Resolve each name individually. */
1.182 schwarze 453:
1.338 schwarze 454: if (search.argmode == ARG_NAME) {
1.343 schwarze 455: if (argc < 1) {
456: if (outmode != OUTMODE_FLN)
457: usage(ARG_NAME);
458: if (conf.manpath.sz == 0) {
459: warnx("The manpath is empty.");
460: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
461: } else {
462: for (i = 0; i + 1 < conf.manpath.sz; i++)
463: printf("%s:", conf.manpath.paths[i]);
464: printf("%s\n", conf.manpath.paths[i]);
465: }
466: manconf_free(&conf);
467: return (int)mandoc_msg_getrc();
468: }
1.338 schwarze 469: for (res = NULL, ressz = 0; argc > 0; argc--, argv++) {
470: (void)mansearch(&search, &conf.manpath,
471: 1, argv, &resn, &resnsz);
472: if (resnsz == 0)
473: (void)fs_search(&search, &conf.manpath,
1.340 schwarze 474: *argv, &resn, &resnsz);
475: if (resnsz == 0 && strchr(*argv, '/') == NULL) {
476: if (search.arch != NULL &&
477: arch_valid(search.arch, OSENUM) == 0)
478: warnx("Unknown architecture \"%s\".",
479: search.arch);
480: else if (search.sec != NULL)
481: warnx("No entry for %s in "
482: "section %s of the manual.",
483: *argv, search.sec);
484: else
485: warnx("No entry for %s in "
486: "the manual.", *argv);
487: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
488: continue;
489: }
1.338 schwarze 490: if (resnsz == 0) {
491: if (access(*argv, R_OK) == -1) {
492: mandoc_msg_setinfilename(*argv);
1.329 schwarze 493: mandoc_msg(MANDOCERR_BADARG_BAD,
494: 0, 0, "%s", strerror(errno));
495: mandoc_msg_setinfilename(NULL);
1.305 schwarze 496: continue;
497: }
1.338 schwarze 498: resnsz = 1;
499: resn = mandoc_calloc(resnsz, sizeof(*res));
500: resn->file = mandoc_strdup(*argv);
501: resn->ipath = SIZE_MAX;
502: resn->form = FORM_SRC;
503: }
504: if (outmode != OUTMODE_ONE || resnsz == 1) {
1.305 schwarze 505: res = mandoc_reallocarray(res,
1.338 schwarze 506: ressz + resnsz, sizeof(*res));
507: memcpy(res + ressz, resn,
508: sizeof(*resn) * resnsz);
509: ressz += resnsz;
510: continue;
1.305 schwarze 511: }
1.187 schwarze 512:
1.338 schwarze 513: /* Search for the best section. */
1.182 schwarze 514:
1.325 schwarze 515: best_prio = 40;
1.338 schwarze 516: for (ib = i = 0; i < resnsz; i++) {
517: sec = resn[i].file;
1.264 schwarze 518: sec += strcspn(sec, "123456789");
519: if (sec[0] == '\0')
1.325 schwarze 520: continue; /* No section at all. */
1.264 schwarze 521: prio = sec_prios[sec[0] - '1'];
1.325 schwarze 522: if (search.sec != NULL) {
523: ssz = strlen(search.sec);
524: if (strncmp(sec, search.sec, ssz) == 0)
525: sec += ssz;
526: } else
527: sec++; /* Prefer without suffix. */
528: if (*sec != '/')
529: prio += 10; /* Wrong dir name. */
530: if (search.sec != NULL &&
531: (strlen(sec) <= ssz + 3 ||
532: strcmp(sec + strlen(sec) - ssz,
533: search.sec) != 0))
534: prio += 20; /* Wrong file ext. */
1.182 schwarze 535: if (prio >= best_prio)
536: continue;
537: best_prio = prio;
1.338 schwarze 538: ib = i;
1.182 schwarze 539: }
1.338 schwarze 540: res = mandoc_reallocarray(res, ressz + 1,
541: sizeof(*res));
542: memcpy(res + ressz++, resn + ib, sizeof(*resn));
1.181 schwarze 543: }
1.182 schwarze 544:
1.338 schwarze 545: /* apropos(1), whatis(1): Process the full search expression. */
546:
547: } else if (search.argmode != ARG_FILE) {
548: if (mansearch(&search, &conf.manpath,
549: argc, argv, &res, &ressz) == 0)
550: usage(search.argmode);
1.182 schwarze 551:
1.338 schwarze 552: if (ressz == 0) {
553: warnx("nothing appropriate");
554: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.182 schwarze 555: goto out;
1.338 schwarze 556: }
557:
558: /* mandoc(1): Take command line arguments as file names. */
559:
1.337 schwarze 560: } else {
1.338 schwarze 561: ressz = argc > 0 ? argc : 1;
562: res = mandoc_calloc(ressz, sizeof(*res));
563: for (i = 0; i < ressz; i++) {
1.337 schwarze 564: if (argc > 0)
565: res[i].file = mandoc_strdup(argv[i]);
566: res[i].ipath = SIZE_MAX;
567: res[i].form = FORM_SRC;
568: }
1.180 schwarze 569: }
570:
1.338 schwarze 571: switch (outmode) {
572: case OUTMODE_FLN:
573: for (i = 0; i < ressz; i++)
574: puts(res[i].file);
575: goto out;
576: case OUTMODE_LST:
577: for (i = 0; i < ressz; i++)
578: printf("%s - %s\n", res[i].names,
579: res[i].output == NULL ? "" :
580: res[i].output);
581: goto out;
582: default:
583: break;
584: }
1.255 schwarze 585:
1.329 schwarze 586: if (search.argmode == ARG_FILE && auxpaths != NULL) {
587: if (strcmp(auxpaths, "doc") == 0)
588: options |= MPARSE_MDOC;
589: else if (strcmp(auxpaths, "an") == 0)
590: options |= MPARSE_MAN;
591: }
1.241 schwarze 592:
1.249 schwarze 593: mchars_alloc();
1.334 schwarze 594: mp = mparse_alloc(options, os_e, os_s);
1.154 kristaps 595:
1.305 schwarze 596: /*
597: * Remember the original working directory, if possible.
598: * This will be needed if some names on the command line
599: * are page names and some are relative file names.
600: * Do not error out if the current directory is not
601: * readable: Maybe it won't be needed after all.
602: */
603: startdir = open(".", O_RDONLY | O_DIRECTORY);
1.338 schwarze 604: for (i = 0; i < ressz; i++) {
605: process_onefile(mp, res + i, startdir, &outst, &conf);
1.335 schwarze 606: if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 607: break;
1.1 kristaps 608: }
1.305 schwarze 609: if (startdir != -1) {
610: (void)fchdir(startdir);
611: close(startdir);
612: }
1.348 schwarze 613: if (conf.output.tag != NULL && conf.output.tag_found == 0) {
614: mandoc_msg(MANDOCERR_TAG, 0, 0, "%s", conf.output.tag);
615: conf.output.tag = NULL;
616: }
1.335 schwarze 617: if (outst.outdata != NULL) {
618: switch (outst.outtype) {
1.252 schwarze 619: case OUTT_HTML:
1.335 schwarze 620: html_free(outst.outdata);
1.252 schwarze 621: break;
622: case OUTT_UTF8:
623: case OUTT_LOCALE:
624: case OUTT_ASCII:
1.335 schwarze 625: ascii_free(outst.outdata);
1.252 schwarze 626: break;
627: case OUTT_PDF:
628: case OUTT_PS:
1.335 schwarze 629: pspdf_free(outst.outdata);
1.252 schwarze 630: break;
631: default:
632: break;
633: }
1.250 schwarze 634: }
1.294 schwarze 635: mandoc_xr_free();
1.334 schwarze 636: mparse_free(mp);
1.249 schwarze 637: mchars_free();
1.182 schwarze 638:
639: out:
1.338 schwarze 640: mansearch_free(res, ressz);
1.337 schwarze 641: if (search.argmode != ARG_FILE)
1.229 schwarze 642: manconf_free(&conf);
1.1 kristaps 643:
1.336 schwarze 644: if (outst.tag_files != NULL) {
1.348 schwarze 645: if (term_tag_close() != -1)
646: run_pager(outst.tag_files, conf.output.tag);
1.345 schwarze 647: term_tag_unlink();
1.337 schwarze 648: } else if (outst.had_output && outst.outtype != OUTT_LINT)
1.330 schwarze 649: mandoc_msg_summary();
650:
1.312 schwarze 651: return (int)mandoc_msg_getrc();
1.1 kristaps 652: }
653:
1.55 kristaps 654: static void
1.180 schwarze 655: usage(enum argmode argmode)
1.1 kristaps 656: {
1.180 schwarze 657: switch (argmode) {
658: case ARG_FILE:
1.287 schwarze 659: fputs("usage: mandoc [-ac] [-I os=name] "
660: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 661: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 662: break;
663: case ARG_NAME:
1.287 schwarze 664: fputs("usage: man [-acfhklw] [-C file] [-M path] "
665: "[-m path] [-S subsection]\n"
666: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 667: break;
668: case ARG_WORD:
1.287 schwarze 669: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 670: "[-M path] [-m path] [-O outkey] [-S arch]\n"
671: "\t [-s section] name ...\n", stderr);
1.180 schwarze 672: break;
673: case ARG_EXPR:
1.287 schwarze 674: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 675: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 676: "\t [-s section] expression ...\n", stderr);
677: break;
678: }
1.105 kristaps 679: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 680: }
1.213 schwarze 681:
1.344 schwarze 682: static void
683: glob_esc(char **dst, const char *src, const char *suffix)
684: {
685: while (*src != '\0') {
686: if (strchr("*?[", *src) != NULL)
687: *(*dst)++ = '\\';
688: *(*dst)++ = *src++;
689: }
690: while (*suffix != '\0')
691: *(*dst)++ = *suffix++;
692: }
693:
1.213 schwarze 694: static int
695: fs_lookup(const struct manpaths *paths, size_t ipath,
696: const char *sec, const char *arch, const char *name,
697: struct manpage **res, size_t *ressz)
698: {
1.326 schwarze 699: struct stat sb;
1.222 schwarze 700: glob_t globinfo;
1.213 schwarze 701: struct manpage *page;
1.344 schwarze 702: char *file, *cp;
1.274 schwarze 703: int globres;
704: enum form form;
1.213 schwarze 705:
1.344 schwarze 706: const char *const slman = "/man";
707: const char *const slash = "/";
708: const char *const sglob = ".[01-9]*";
709:
1.222 schwarze 710: form = FORM_SRC;
1.213 schwarze 711: mandoc_asprintf(&file, "%s/man%s/%s.%s",
712: paths->paths[ipath], sec, name, sec);
1.326 schwarze 713: if (stat(file, &sb) != -1)
1.213 schwarze 714: goto found;
715: free(file);
716:
717: mandoc_asprintf(&file, "%s/cat%s/%s.0",
718: paths->paths[ipath], sec, name);
1.326 schwarze 719: if (stat(file, &sb) != -1) {
1.213 schwarze 720: form = FORM_CAT;
721: goto found;
722: }
723: free(file);
724:
725: if (arch != NULL) {
726: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
727: paths->paths[ipath], sec, arch, name, sec);
1.326 schwarze 728: if (stat(file, &sb) != -1)
1.213 schwarze 729: goto found;
730: free(file);
731: }
1.222 schwarze 732:
1.344 schwarze 733: cp = file = mandoc_malloc(strlen(paths->paths[ipath]) * 2 +
734: strlen(slman) + strlen(sec) * 2 + strlen(slash) +
735: strlen(name) * 2 + strlen(sglob) + 1);
736: glob_esc(&cp, paths->paths[ipath], slman);
737: glob_esc(&cp, sec, slash);
738: glob_esc(&cp, name, sglob);
739: *cp = '\0';
1.222 schwarze 740: globres = glob(file, 0, NULL, &globinfo);
741: if (globres != 0 && globres != GLOB_NOMATCH)
1.329 schwarze 742: mandoc_msg(MANDOCERR_GLOB, 0, 0,
743: "%s: %s", file, strerror(errno));
1.222 schwarze 744: free(file);
745: if (globres == 0)
746: file = mandoc_strdup(*globinfo.gl_pathv);
747: globfree(&globinfo);
1.326 schwarze 748: if (globres == 0) {
749: if (stat(file, &sb) != -1)
750: goto found;
751: free(file);
752: }
1.296 schwarze 753: if (res != NULL || ipath + 1 != paths->sz)
1.329 schwarze 754: return -1;
1.213 schwarze 755:
1.296 schwarze 756: mandoc_asprintf(&file, "%s.%s", name, sec);
1.326 schwarze 757: globres = stat(file, &sb);
1.296 schwarze 758: free(file);
1.329 schwarze 759: return globres;
1.296 schwarze 760:
1.213 schwarze 761: found:
1.266 schwarze 762: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
763: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 764: if (res == NULL) {
765: free(file);
1.329 schwarze 766: return 0;
1.296 schwarze 767: }
1.329 schwarze 768: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.213 schwarze 769: page = *res + (*ressz - 1);
770: page->file = file;
771: page->names = NULL;
772: page->output = NULL;
1.323 schwarze 773: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 774: page->ipath = ipath;
775: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
776: page->form = form;
1.329 schwarze 777: return 0;
1.213 schwarze 778: }
779:
1.295 schwarze 780: static int
1.213 schwarze 781: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
1.340 schwarze 782: const char *name, struct manpage **res, size_t *ressz)
1.213 schwarze 783: {
784: const char *const sections[] =
1.264 schwarze 785: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 786: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
787:
1.340 schwarze 788: size_t ipath, isec;
1.213 schwarze 789:
790: assert(cfg->argmode == ARG_NAME);
1.295 schwarze 791: if (res != NULL)
792: *res = NULL;
1.340 schwarze 793: *ressz = 0;
794: for (ipath = 0; ipath < paths->sz; ipath++) {
795: if (cfg->sec != NULL) {
796: if (fs_lookup(paths, ipath, cfg->sec, cfg->arch,
797: name, res, ressz) != -1 && cfg->firstmatch)
798: return 0;
799: } else {
800: for (isec = 0; isec < nsec; isec++)
1.213 schwarze 801: if (fs_lookup(paths, ipath, sections[isec],
1.340 schwarze 802: cfg->arch, name, res, ressz) != -1 &&
1.213 schwarze 803: cfg->firstmatch)
1.329 schwarze 804: return 0;
1.213 schwarze 805: }
806: }
1.329 schwarze 807: return -1;
1.213 schwarze 808: }
1.68 joerg 809:
1.64 kristaps 810: static void
1.337 schwarze 811: process_onefile(struct mparse *mp, struct manpage *resp, int startdir,
812: struct outstate *outst, struct manconf *conf)
813: {
814: int fd;
815:
816: /*
817: * Changing directories is not needed in ARG_FILE mode.
818: * Do it on a best-effort basis. Even in case of
819: * failure, some functionality may still work.
820: */
821: if (resp->ipath != SIZE_MAX)
822: (void)chdir(conf->manpath.paths[resp->ipath]);
823: else if (startdir != -1)
824: (void)fchdir(startdir);
825:
826: mandoc_msg_setinfilename(resp->file);
827: if (resp->file != NULL) {
828: if ((fd = mparse_open(mp, resp->file)) == -1) {
829: mandoc_msg(resp->ipath == SIZE_MAX ?
830: MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
831: 0, 0, "%s", strerror(errno));
832: mandoc_msg_setinfilename(NULL);
833: return;
834: }
835: } else
836: fd = STDIN_FILENO;
837:
1.347 schwarze 838: if (outst->use_pager) {
839: outst->use_pager = 0;
1.348 schwarze 840: outst->tag_files = term_tag_init();
1.347 schwarze 841: }
842: if (outst->had_output && outst->outtype <= OUTT_UTF8) {
843: if (outst->outdata == NULL)
844: outdata_alloc(outst, &conf->output);
845: terminal_sepline(outst->outdata);
1.337 schwarze 846: }
847:
848: if (resp->form == FORM_SRC)
849: parse(mp, fd, resp->file, outst, &conf->output);
850: else {
851: passthrough(fd, conf->output.synopsisonly);
852: outst->had_output = 1;
853: }
854:
855: if (ferror(stdout)) {
856: if (outst->tag_files != NULL) {
857: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
858: outst->tag_files->ofn, strerror(errno));
1.345 schwarze 859: term_tag_unlink();
1.337 schwarze 860: outst->tag_files = NULL;
861: } else
862: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
863: strerror(errno));
864: }
865: mandoc_msg_setinfilename(NULL);
866: }
867:
868: static void
1.335 schwarze 869: parse(struct mparse *mp, int fd, const char *file,
870: struct outstate *outst, struct manoutput *outconf)
1.1 kristaps 871: {
1.337 schwarze 872: static int previous;
873: struct roff_meta *meta;
1.112 kristaps 874:
1.337 schwarze 875: assert(fd >= 0);
876: if (file == NULL)
877: file = "<stdin>";
1.112 kristaps 878:
1.337 schwarze 879: if (previous)
880: mparse_reset(mp);
881: else
882: previous = 1;
1.112 kristaps 883:
1.334 schwarze 884: mparse_readfd(mp, fd, file);
1.261 schwarze 885: if (fd != STDIN_FILENO)
886: close(fd);
1.112 kristaps 887:
1.1 kristaps 888: /*
1.154 kristaps 889: * With -Wstop and warnings or errors of at least the requested
890: * level, do not produce output.
1.1 kristaps 891: */
892:
1.335 schwarze 893: if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 894: return;
1.111 kristaps 895:
1.335 schwarze 896: if (outst->outdata == NULL)
897: outdata_alloc(outst, outconf);
898: else if (outst->outtype == OUTT_HTML)
1.349 ! schwarze 899: html_reset(outst->outdata);
1.111 kristaps 900:
1.315 schwarze 901: mandoc_xr_reset();
1.334 schwarze 902: meta = mparse_result(mp);
1.250 schwarze 903:
904: /* Execute the out device, if it exists. */
905:
1.337 schwarze 906: outst->had_output = 1;
1.315 schwarze 907: if (meta->macroset == MACROSET_MDOC) {
1.335 schwarze 908: switch (outst->outtype) {
1.173 schwarze 909: case OUTT_HTML:
1.335 schwarze 910: html_mdoc(outst->outdata, meta);
1.111 kristaps 911: break;
1.173 schwarze 912: case OUTT_TREE:
1.335 schwarze 913: tree_mdoc(outst->outdata, meta);
1.111 kristaps 914: break;
1.173 schwarze 915: case OUTT_MAN:
1.335 schwarze 916: man_mdoc(outst->outdata, meta);
1.164 schwarze 917: break;
1.173 schwarze 918: case OUTT_PDF:
919: case OUTT_ASCII:
920: case OUTT_UTF8:
921: case OUTT_LOCALE:
922: case OUTT_PS:
1.335 schwarze 923: terminal_mdoc(outst->outdata, meta);
1.250 schwarze 924: break;
1.285 schwarze 925: case OUTT_MARKDOWN:
1.335 schwarze 926: markdown_mdoc(outst->outdata, meta);
1.285 schwarze 927: break;
1.250 schwarze 928: default:
929: break;
930: }
931: }
1.315 schwarze 932: if (meta->macroset == MACROSET_MAN) {
1.335 schwarze 933: switch (outst->outtype) {
1.250 schwarze 934: case OUTT_HTML:
1.335 schwarze 935: html_man(outst->outdata, meta);
1.250 schwarze 936: break;
937: case OUTT_TREE:
1.335 schwarze 938: tree_man(outst->outdata, meta);
1.250 schwarze 939: break;
940: case OUTT_MAN:
1.334 schwarze 941: mparse_copy(mp);
1.250 schwarze 942: break;
943: case OUTT_PDF:
944: case OUTT_ASCII:
945: case OUTT_UTF8:
946: case OUTT_LOCALE:
947: case OUTT_PS:
1.335 schwarze 948: terminal_man(outst->outdata, meta);
1.111 kristaps 949: break;
950: default:
951: break;
952: }
1.276 schwarze 953: }
1.348 schwarze 954: if (outconf->tag != NULL && outconf->tag_found == 0 &&
955: tag_exists(outconf->tag))
956: outconf->tag_found = 1;
1.312 schwarze 957: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
958: check_xr();
1.294 schwarze 959: }
960:
961: static void
1.312 schwarze 962: check_xr(void)
1.294 schwarze 963: {
964: static struct manpaths paths;
965: struct mansearch search;
966: struct mandoc_xr *xr;
967: size_t sz;
968:
969: if (paths.sz == 0)
970: manpath_base(&paths);
971:
972: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 973: if (xr->line == -1)
974: continue;
1.294 schwarze 975: search.arch = NULL;
976: search.sec = xr->sec;
977: search.outkey = NULL;
978: search.argmode = ARG_NAME;
979: search.firstmatch = 1;
980: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 981: continue;
1.340 schwarze 982: if (fs_search(&search, &paths, xr->name, NULL, &sz) != -1)
1.294 schwarze 983: continue;
1.298 schwarze 984: if (xr->count == 1)
1.313 schwarze 985: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
986: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 987: else
1.313 schwarze 988: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
989: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 990: xr->name, xr->sec, xr->count);
1.294 schwarze 991: }
1.276 schwarze 992: }
993:
994: static void
1.335 schwarze 995: outdata_alloc(struct outstate *outst, struct manoutput *outconf)
1.276 schwarze 996: {
1.335 schwarze 997: switch (outst->outtype) {
1.276 schwarze 998: case OUTT_HTML:
1.335 schwarze 999: outst->outdata = html_alloc(outconf);
1.276 schwarze 1000: break;
1001: case OUTT_UTF8:
1.335 schwarze 1002: outst->outdata = utf8_alloc(outconf);
1.276 schwarze 1003: break;
1004: case OUTT_LOCALE:
1.335 schwarze 1005: outst->outdata = locale_alloc(outconf);
1.276 schwarze 1006: break;
1007: case OUTT_ASCII:
1.335 schwarze 1008: outst->outdata = ascii_alloc(outconf);
1.276 schwarze 1009: break;
1010: case OUTT_PDF:
1.335 schwarze 1011: outst->outdata = pdf_alloc(outconf);
1.276 schwarze 1012: break;
1013: case OUTT_PS:
1.335 schwarze 1014: outst->outdata = ps_alloc(outconf);
1.276 schwarze 1015: break;
1016: default:
1017: break;
1.111 kristaps 1018: }
1.186 schwarze 1019: }
1020:
1.227 schwarze 1021: static void
1.329 schwarze 1022: passthrough(int fd, int synopsis_only)
1.186 schwarze 1023: {
1.197 schwarze 1024: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
1025: const char synr[] = "SYNOPSIS";
1026:
1027: FILE *stream;
1.257 schwarze 1028: char *line, *cp;
1029: size_t linesz;
1.277 schwarze 1030: ssize_t len, written;
1.329 schwarze 1031: int lno, print;
1.210 schwarze 1032:
1.329 schwarze 1033: stream = NULL;
1.257 schwarze 1034: line = NULL;
1035: linesz = 0;
1.197 schwarze 1036:
1.277 schwarze 1037: if (fflush(stdout) == EOF) {
1.329 schwarze 1038: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
1039: goto done;
1.277 schwarze 1040: }
1.197 schwarze 1041: if ((stream = fdopen(fd, "r")) == NULL) {
1042: close(fd);
1.329 schwarze 1043: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
1044: goto done;
1.197 schwarze 1045: }
1.186 schwarze 1046:
1.329 schwarze 1047: lno = print = 0;
1.277 schwarze 1048: while ((len = getline(&line, &linesz, stream)) != -1) {
1.329 schwarze 1049: lno++;
1.257 schwarze 1050: cp = line;
1.197 schwarze 1051: if (synopsis_only) {
1052: if (print) {
1.257 schwarze 1053: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 1054: goto done;
1.277 schwarze 1055: while (isspace((unsigned char)*cp)) {
1.257 schwarze 1056: cp++;
1.277 schwarze 1057: len--;
1058: }
1.197 schwarze 1059: } else {
1.257 schwarze 1060: if (strcmp(cp, synb) == 0 ||
1061: strcmp(cp, synr) == 0)
1.197 schwarze 1062: print = 1;
1063: continue;
1064: }
1065: }
1.277 schwarze 1066: for (; len > 0; len -= written) {
1.329 schwarze 1067: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1068: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1069: "%s", strerror(errno));
1070: goto done;
1071: }
1.257 schwarze 1072: }
1.197 schwarze 1073: }
1.329 schwarze 1074: if (ferror(stream))
1075: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.193 schwarze 1076:
1.197 schwarze 1077: done:
1.257 schwarze 1078: free(line);
1.329 schwarze 1079: if (stream != NULL)
1080: fclose(stream);
1.1 kristaps 1081: }
1082:
1083: static int
1.334 schwarze 1084: woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1.1 kristaps 1085: {
1.34 kristaps 1086: char *v, *o;
1.293 schwarze 1087: const char *toks[11];
1.1 kristaps 1088:
1.103 schwarze 1089: toks[0] = "stop";
1090: toks[1] = "all";
1.293 schwarze 1091: toks[2] = "base";
1092: toks[3] = "style";
1093: toks[4] = "warning";
1094: toks[5] = "error";
1095: toks[6] = "unsupp";
1096: toks[7] = "fatal";
1097: toks[8] = "openbsd";
1098: toks[9] = "netbsd";
1099: toks[10] = NULL;
1.1 kristaps 1100:
1.34 kristaps 1101: while (*arg) {
1102: o = arg;
1.272 schwarze 1103: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1104: case 0:
1.334 schwarze 1105: *wstop = 1;
1.1 kristaps 1106: break;
1.173 schwarze 1107: case 1:
1108: case 2:
1.312 schwarze 1109: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1110: break;
1111: case 3:
1.312 schwarze 1112: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1113: break;
1.290 schwarze 1114: case 4:
1.312 schwarze 1115: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1116: break;
1.290 schwarze 1117: case 5:
1.312 schwarze 1118: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1119: break;
1.290 schwarze 1120: case 6:
1.312 schwarze 1121: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1122: break;
1123: case 7:
1.329 schwarze 1124: mandoc_msg_setmin(MANDOCERR_BADARG);
1.293 schwarze 1125: break;
1126: case 8:
1.312 schwarze 1127: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1128: *os_e = MANDOC_OS_OPENBSD;
1.293 schwarze 1129: break;
1130: case 9:
1.312 schwarze 1131: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1132: *os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1133: break;
1.1 kristaps 1134: default:
1.329 schwarze 1135: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1136: return -1;
1.1 kristaps 1137: }
1.34 kristaps 1138: }
1.329 schwarze 1139: return 0;
1.333 schwarze 1140: }
1141:
1142: /*
1143: * Wait until moved to the foreground,
1144: * then fork the pager and wait for the user to close it.
1145: */
1146: static void
1.348 schwarze 1147: run_pager(struct tag_files *tag_files, char *tag_target)
1.333 schwarze 1148: {
1149: int signum, status;
1150: pid_t man_pgid, tc_pgid;
1151: pid_t pager_pid, wait_pid;
1152:
1153: man_pgid = getpgid(0);
1154: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
1155: man_pgid;
1156: pager_pid = 0;
1157: signum = SIGSTOP;
1158:
1159: for (;;) {
1160: /* Stop here until moved to the foreground. */
1161:
1.348 schwarze 1162: tc_pgid = tcgetpgrp(STDOUT_FILENO);
1.333 schwarze 1163: if (tc_pgid != man_pgid) {
1164: if (tc_pgid == pager_pid) {
1.348 schwarze 1165: (void)tcsetpgrp(STDOUT_FILENO, man_pgid);
1.333 schwarze 1166: if (signum == SIGTTIN)
1167: continue;
1168: } else
1169: tag_files->tcpgid = tc_pgid;
1170: kill(0, signum);
1171: continue;
1172: }
1173:
1174: /* Once in the foreground, activate the pager. */
1175:
1176: if (pager_pid) {
1.348 schwarze 1177: (void)tcsetpgrp(STDOUT_FILENO, pager_pid);
1.333 schwarze 1178: kill(pager_pid, SIGCONT);
1179: } else
1.348 schwarze 1180: pager_pid = spawn_pager(tag_files, tag_target);
1.333 schwarze 1181:
1182: /* Wait for the pager to stop or exit. */
1183:
1184: while ((wait_pid = waitpid(pager_pid, &status,
1185: WUNTRACED)) == -1 && errno == EINTR)
1186: continue;
1187:
1188: if (wait_pid == -1) {
1189: mandoc_msg(MANDOCERR_WAIT, 0, 0,
1190: "%s", strerror(errno));
1191: break;
1192: }
1193: if (!WIFSTOPPED(status))
1194: break;
1195:
1196: signum = WSTOPSIG(status);
1197: }
1.183 schwarze 1198: }
1199:
1.225 schwarze 1200: static pid_t
1.348 schwarze 1201: spawn_pager(struct tag_files *tag_files, char *tag_target)
1.183 schwarze 1202: {
1.265 schwarze 1203: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1204: #define MAX_PAGER_ARGS 16
1205: char *argv[MAX_PAGER_ARGS];
1206: const char *pager;
1207: char *cp;
1.322 schwarze 1208: #if HAVE_LESS_T
1.239 schwarze 1209: size_t cmdlen;
1.322 schwarze 1210: #endif
1.309 schwarze 1211: int argc, use_ofn;
1.225 schwarze 1212: pid_t pager_pid;
1.183 schwarze 1213:
1.348 schwarze 1214: assert(tag_files->ofd == -1);
1215: assert(tag_files->tfs == NULL);
1216:
1.239 schwarze 1217: pager = getenv("MANPAGER");
1218: if (pager == NULL || *pager == '\0')
1219: pager = getenv("PAGER");
1220: if (pager == NULL || *pager == '\0')
1221: pager = "more -s";
1222: cp = mandoc_strdup(pager);
1223:
1224: /*
1225: * Parse the pager command into words.
1226: * Intentionally do not do anything fancy here.
1227: */
1228:
1229: argc = 0;
1.309 schwarze 1230: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1231: argv[argc++] = cp;
1232: cp = strchr(cp, ' ');
1233: if (cp == NULL)
1234: break;
1235: *cp++ = '\0';
1236: while (*cp == ' ')
1237: cp++;
1238: if (*cp == '\0')
1239: break;
1240: }
1241:
1.268 schwarze 1242: /* For less(1), use the tag file. */
1.239 schwarze 1243:
1.309 schwarze 1244: use_ofn = 1;
1.322 schwarze 1245: #if HAVE_LESS_T
1.332 schwarze 1246: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1247: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1248: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1249: argv[argc++] = mandoc_strdup("-T");
1250: argv[argc++] = tag_files->tfn;
1.348 schwarze 1251: if (tag_target != NULL) {
1.309 schwarze 1252: argv[argc++] = mandoc_strdup("-t");
1.348 schwarze 1253: argv[argc++] = tag_target;
1.309 schwarze 1254: use_ofn = 0;
1255: }
1.244 schwarze 1256: }
1.239 schwarze 1257: }
1.322 schwarze 1258: #endif
1.309 schwarze 1259: if (use_ofn)
1260: argv[argc++] = tag_files->ofn;
1.239 schwarze 1261: argv[argc] = NULL;
1262:
1.225 schwarze 1263: switch (pager_pid = fork()) {
1.183 schwarze 1264: case -1:
1.329 schwarze 1265: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1266: exit(mandoc_msg_getrc());
1.183 schwarze 1267: case 0:
1.224 schwarze 1268: break;
1269: default:
1.258 schwarze 1270: (void)setpgid(pager_pid, 0);
1.348 schwarze 1271: (void)tcsetpgrp(STDOUT_FILENO, pager_pid);
1.255 schwarze 1272: #if HAVE_PLEDGE
1.329 schwarze 1273: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1274: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1275: "%s", strerror(errno));
1276: exit(mandoc_msg_getrc());
1277: }
1.255 schwarze 1278: #endif
1.259 schwarze 1279: tag_files->pager_pid = pager_pid;
1.245 schwarze 1280: return pager_pid;
1.184 schwarze 1281: }
1282:
1.348 schwarze 1283: /*
1284: * The child process becomes the pager.
1285: * Do not start it before controlling the terminal.
1286: */
1.265 schwarze 1287:
1.279 schwarze 1288: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1289: nanosleep(&timeout, NULL);
1290:
1.184 schwarze 1291: execvp(argv[0], argv);
1.329 schwarze 1292: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1293: _exit(mandoc_msg_getrc());
1.71 kristaps 1294: }
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