Annotation of mandoc/main.c, Revision 1.343
1.343 ! schwarze 1: /* $Id: main.c,v 1.342 2020/02/06 19:41:40 schwarze Exp $ */
1.1 kristaps 2: /*
1.183 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.342 schwarze 4: * Copyright (c) 2010-2012, 2014-2020 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 */
1.326 schwarze 24: #include <sys/stat.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>
1.341 schwarze 35: #include <limits.h>
1.269 kristaps 36: #if HAVE_SANDBOX_INIT
37: #include <sandbox.h>
38: #endif
1.226 schwarze 39: #include <signal.h>
1.1 kristaps 40: #include <stdio.h>
1.45 kristaps 41: #include <stdint.h>
1.1 kristaps 42: #include <stdlib.h>
43: #include <string.h>
1.321 schwarze 44: #include <termios.h>
1.265 schwarze 45: #include <time.h>
1.1 kristaps 46: #include <unistd.h>
47:
1.231 schwarze 48: #include "mandoc_aux.h"
1.71 kristaps 49: #include "mandoc.h"
1.294 schwarze 50: #include "mandoc_xr.h"
1.231 schwarze 51: #include "roff.h"
1.1 kristaps 52: #include "mdoc.h"
1.10 kristaps 53: #include "man.h"
1.311 schwarze 54: #include "mandoc_parse.h"
1.239 schwarze 55: #include "tag.h"
1.231 schwarze 56: #include "main.h"
1.229 schwarze 57: #include "manconf.h"
1.180 schwarze 58: #include "mansearch.h"
1.16 kristaps 59:
1.181 schwarze 60: enum outmode {
61: OUTMODE_DEF = 0,
62: OUTMODE_FLN,
63: OUTMODE_LST,
64: OUTMODE_ALL,
65: OUTMODE_ONE
66: };
67:
1.19 kristaps 68: enum outt {
1.154 kristaps 69: OUTT_ASCII = 0, /* -Tascii */
1.162 kristaps 70: OUTT_LOCALE, /* -Tlocale */
1.163 kristaps 71: OUTT_UTF8, /* -Tutf8 */
1.154 kristaps 72: OUTT_TREE, /* -Ttree */
1.164 schwarze 73: OUTT_MAN, /* -Tman */
1.154 kristaps 74: OUTT_HTML, /* -Thtml */
1.285 schwarze 75: OUTT_MARKDOWN, /* -Tmarkdown */
1.154 kristaps 76: OUTT_LINT, /* -Tlint */
77: OUTT_PS, /* -Tps */
78: OUTT_PDF /* -Tpdf */
1.19 kristaps 79: };
80:
1.335 schwarze 81: struct outstate {
1.336 schwarze 82: struct tag_files *tag_files; /* Tagging state variables. */
1.293 schwarze 83: void *outdata; /* data for output */
1.336 schwarze 84: int use_pager;
1.148 kristaps 85: int wstop; /* stop after a file with a warning */
1.337 schwarze 86: int had_output; /* Some output was generated. */
1.173 schwarze 87: enum outt outtype; /* which output to use */
1.79 kristaps 88: };
1.270 schwarze 89:
90:
91: int mandocdb(int, char *[]);
1.79 kristaps 92:
1.312 schwarze 93: static void check_xr(void);
1.213 schwarze 94: static int fs_lookup(const struct manpaths *,
95: size_t ipath, const char *,
96: const char *, const char *,
97: struct manpage **, size_t *);
1.295 schwarze 98: static int fs_search(const struct mansearch *,
1.340 schwarze 99: const struct manpaths *, const char *,
1.213 schwarze 100: struct manpage **, size_t *);
1.335 schwarze 101: static void outdata_alloc(struct outstate *, struct manoutput *);
1.334 schwarze 102: static void parse(struct mparse *, int, const char *,
1.335 schwarze 103: struct outstate *, struct manoutput *);
1.329 schwarze 104: static void passthrough(int, int);
1.337 schwarze 105: static void process_onefile(struct mparse *, struct manpage *,
106: int, struct outstate *, struct manconf *);
1.333 schwarze 107: static void run_pager(struct tag_files *);
1.244 schwarze 108: static pid_t spawn_pager(struct tag_files *);
1.283 schwarze 109: static void usage(enum argmode) __attribute__((__noreturn__));
1.334 schwarze 110: static int woptions(char *, enum mandoc_os *, int *);
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};
1.1 kristaps 115:
1.173 schwarze 116:
1.1 kristaps 117: int
118: main(int argc, char *argv[])
119: {
1.334 schwarze 120: struct manconf conf; /* Manpaths and output options. */
1.335 schwarze 121: struct outstate outst; /* Output state. */
1.334 schwarze 122: struct winsize ws; /* Result of ioctl(TIOCGWINSZ). */
123: struct mansearch search; /* Search options. */
1.338 schwarze 124: struct manpage *res; /* Complete list of search results. */
125: struct manpage *resn; /* Search results for one name. */
1.334 schwarze 126: struct mparse *mp; /* Opaque parser object. */
127: const char *conf_file; /* -C: alternate config file. */
128: const char *os_s; /* -I: Operating system for display. */
1.337 schwarze 129: const char *progname, *sec;
1.334 schwarze 130: char *defpaths; /* -M: override manpaths. */
131: char *auxpaths; /* -m: additional manpaths. */
132: char *oarg; /* -O: output option string. */
133: char *tagarg; /* -O tag: default value. */
1.207 schwarze 134: unsigned char *uc;
1.338 schwarze 135: size_t ressz; /* Number of elements in res[]. */
136: size_t resnsz; /* Number of elements in resn[]. */
137: size_t i, ib, ssz;
1.334 schwarze 138: int options; /* Parser options. */
139: int show_usage; /* Invalid argument: give up. */
1.230 schwarze 140: int prio, best_prio;
1.337 schwarze 141: int startdir;
1.180 schwarze 142: int c;
1.334 schwarze 143: enum mandoc_os os_e; /* Check base system conventions. */
144: enum outmode outmode; /* According to command line. */
1.1 kristaps 145:
1.254 schwarze 146: #if HAVE_PROGNAME
147: progname = getprogname();
148: #else
1.219 schwarze 149: if (argc < 1)
1.254 schwarze 150: progname = mandoc_strdup("mandoc");
151: else if ((progname = strrchr(argv[0], '/')) == NULL)
152: progname = argv[0];
1.54 kristaps 153: else
1.254 schwarze 154: ++progname;
155: setprogname(progname);
1.247 schwarze 156: #endif
1.203 schwarze 157:
1.317 schwarze 158: mandoc_msg_setoutfile(stderr);
1.254 schwarze 159: if (strncmp(progname, "mandocdb", 8) == 0 ||
160: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 161: return mandocdb(argc, argv);
1.179 schwarze 162:
1.255 schwarze 163: #if HAVE_PLEDGE
1.329 schwarze 164: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
165: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
166: return mandoc_msg_getrc();
167: }
1.269 kristaps 168: #endif
169: #if HAVE_SANDBOX_INIT
170: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
171: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 172: #endif
173:
1.180 schwarze 174: /* Search options. */
175:
1.229 schwarze 176: memset(&conf, 0, sizeof(conf));
1.334 schwarze 177: conf_file = NULL;
178: defpaths = auxpaths = NULL;
1.180 schwarze 179:
180: memset(&search, 0, sizeof(struct mansearch));
181: search.outkey = "Nd";
1.282 schwarze 182: oarg = NULL;
1.180 schwarze 183:
1.254 schwarze 184: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 185: search.argmode = ARG_NAME;
1.254 schwarze 186: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 187: search.argmode = ARG_EXPR;
1.254 schwarze 188: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 189: search.argmode = ARG_WORD;
1.254 schwarze 190: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 191: search.argmode = ARG_NAME;
1.180 schwarze 192: else
193: search.argmode = ARG_FILE;
194:
1.335 schwarze 195: /* Parser options. */
1.54 kristaps 196:
1.335 schwarze 197: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.334 schwarze 198: os_e = MANDOC_OS_OTHER;
199: os_s = NULL;
1.335 schwarze 200:
201: /* Formatter options. */
202:
203: memset(&outst, 0, sizeof(outst));
1.336 schwarze 204: outst.tag_files = NULL;
1.335 schwarze 205: outst.outtype = OUTT_LOCALE;
1.336 schwarze 206: outst.use_pager = 1;
1.19 kristaps 207:
1.180 schwarze 208: show_usage = 0;
1.181 schwarze 209: outmode = OUTMODE_DEF;
1.183 schwarze 210:
1.289 schwarze 211: while ((c = getopt(argc, argv,
212: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
213: if (c == 'i' && search.argmode == ARG_EXPR) {
214: optind--;
215: break;
216: }
1.1 kristaps 217: switch (c) {
1.181 schwarze 218: case 'a':
219: outmode = OUTMODE_ALL;
220: break;
1.180 schwarze 221: case 'C':
222: conf_file = optarg;
223: break;
1.183 schwarze 224: case 'c':
1.336 schwarze 225: outst.use_pager = 0;
1.183 schwarze 226: break;
1.180 schwarze 227: case 'f':
228: search.argmode = ARG_WORD;
229: break;
1.190 schwarze 230: case 'h':
1.230 schwarze 231: conf.output.synopsisonly = 1;
1.336 schwarze 232: outst.use_pager = 0;
1.190 schwarze 233: outmode = OUTMODE_ALL;
234: break;
1.173 schwarze 235: case 'I':
1.329 schwarze 236: if (strncmp(optarg, "os=", 3) != 0) {
237: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
238: "-I %s", optarg);
239: return mandoc_msg_getrc();
1.166 schwarze 240: }
1.334 schwarze 241: if (os_s != NULL) {
1.329 schwarze 242: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
243: "-I %s", optarg);
244: return mandoc_msg_getrc();
1.166 schwarze 245: }
1.334 schwarze 246: os_s = optarg + 3;
1.181 schwarze 247: break;
1.194 schwarze 248: case 'K':
1.329 schwarze 249: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
250: if (strcmp(optarg, "utf-8") == 0)
251: options |= MPARSE_UTF8;
252: else if (strcmp(optarg, "iso-8859-1") == 0)
253: options |= MPARSE_LATIN1;
254: else if (strcmp(optarg, "us-ascii") != 0) {
255: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
256: "-K %s", optarg);
257: return mandoc_msg_getrc();
258: }
1.194 schwarze 259: break;
1.180 schwarze 260: case 'k':
261: search.argmode = ARG_EXPR;
262: break;
1.188 schwarze 263: case 'l':
264: search.argmode = ARG_FILE;
265: outmode = OUTMODE_ALL;
266: break;
1.180 schwarze 267: case 'M':
268: defpaths = optarg;
269: break;
1.173 schwarze 270: case 'm':
1.180 schwarze 271: auxpaths = optarg;
1.10 kristaps 272: break;
1.173 schwarze 273: case 'O':
1.282 schwarze 274: oarg = optarg;
1.44 kristaps 275: break;
1.180 schwarze 276: case 'S':
277: search.arch = optarg;
278: break;
279: case 's':
280: search.sec = optarg;
281: break;
1.173 schwarze 282: case 'T':
1.329 schwarze 283: if (strcmp(optarg, "ascii") == 0)
1.335 schwarze 284: outst.outtype = OUTT_ASCII;
1.329 schwarze 285: else if (strcmp(optarg, "lint") == 0) {
1.335 schwarze 286: outst.outtype = OUTT_LINT;
1.329 schwarze 287: mandoc_msg_setoutfile(stdout);
288: mandoc_msg_setmin(MANDOCERR_BASE);
289: } else if (strcmp(optarg, "tree") == 0)
1.335 schwarze 290: outst.outtype = OUTT_TREE;
1.329 schwarze 291: else if (strcmp(optarg, "man") == 0)
1.335 schwarze 292: outst.outtype = OUTT_MAN;
1.329 schwarze 293: else if (strcmp(optarg, "html") == 0)
1.335 schwarze 294: outst.outtype = OUTT_HTML;
1.329 schwarze 295: else if (strcmp(optarg, "markdown") == 0)
1.335 schwarze 296: outst.outtype = OUTT_MARKDOWN;
1.329 schwarze 297: else if (strcmp(optarg, "utf8") == 0)
1.335 schwarze 298: outst.outtype = OUTT_UTF8;
1.329 schwarze 299: else if (strcmp(optarg, "locale") == 0)
1.335 schwarze 300: outst.outtype = OUTT_LOCALE;
1.329 schwarze 301: else if (strcmp(optarg, "ps") == 0)
1.335 schwarze 302: outst.outtype = OUTT_PS;
1.329 schwarze 303: else if (strcmp(optarg, "pdf") == 0)
1.335 schwarze 304: outst.outtype = OUTT_PDF;
1.329 schwarze 305: else {
306: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
307: "-T %s", optarg);
308: return mandoc_msg_getrc();
309: }
1.1 kristaps 310: break;
1.173 schwarze 311: case 'W':
1.335 schwarze 312: if (woptions(optarg, &os_e, &outst.wstop) == -1)
1.329 schwarze 313: return mandoc_msg_getrc();
1.1 kristaps 314: break;
1.181 schwarze 315: case 'w':
316: outmode = OUTMODE_FLN;
317: break;
1.1 kristaps 318: default:
1.180 schwarze 319: show_usage = 1;
320: break;
1.1 kristaps 321: }
1.180 schwarze 322: }
323:
324: if (show_usage)
325: usage(search.argmode);
326:
1.185 schwarze 327: /* Postprocess options. */
328:
1.342 schwarze 329: switch (outmode) {
330: case OUTMODE_DEF:
1.181 schwarze 331: switch (search.argmode) {
332: case ARG_FILE:
333: outmode = OUTMODE_ALL;
1.336 schwarze 334: outst.use_pager = 0;
1.181 schwarze 335: break;
336: case ARG_NAME:
337: outmode = OUTMODE_ONE;
338: break;
339: default:
340: outmode = OUTMODE_LST;
341: break;
1.282 schwarze 342: }
1.342 schwarze 343: break;
344: case OUTMODE_FLN:
345: if (search.argmode == ARG_FILE)
346: outmode = OUTMODE_ALL;
347: break;
348: case OUTMODE_ALL:
349: break;
350: case OUTMODE_LST:
351: case OUTMODE_ONE:
352: abort();
1.282 schwarze 353: }
354:
355: if (oarg != NULL) {
356: if (outmode == OUTMODE_LST)
357: search.outkey = oarg;
358: else {
359: while (oarg != NULL) {
360: if (manconf_output(&conf.output,
1.327 schwarze 361: strsep(&oarg, ","), 0) == -1)
1.329 schwarze 362: return mandoc_msg_getrc();
1.282 schwarze 363: }
1.181 schwarze 364: }
365: }
366:
1.335 schwarze 367: if (outst.outtype != OUTT_TREE || conf.output.noval == 0)
1.315 schwarze 368: options |= MPARSE_VALIDATE;
369:
1.246 schwarze 370: if (outmode == OUTMODE_FLN ||
371: outmode == OUTMODE_LST ||
372: !isatty(STDOUT_FILENO))
1.336 schwarze 373: outst.use_pager = 0;
1.304 schwarze 374:
1.336 schwarze 375: if (outst.use_pager &&
1.304 schwarze 376: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 377: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
378: ws.ws_col > 1) {
1.304 schwarze 379: if (conf.output.width == 0 && ws.ws_col < 79)
380: conf.output.width = ws.ws_col - 1;
381: if (conf.output.indent == 0 && ws.ws_col < 66)
382: conf.output.indent = 3;
383: }
1.246 schwarze 384:
1.255 schwarze 385: #if HAVE_PLEDGE
1.336 schwarze 386: if (outst.use_pager == 0) {
1.329 schwarze 387: if (pledge("stdio rpath", NULL) == -1) {
388: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
389: "%s", strerror(errno));
390: return mandoc_msg_getrc();
391: }
392: }
1.255 schwarze 393: #endif
394:
1.185 schwarze 395: /* Parse arguments. */
396:
1.219 schwarze 397: if (argc > 0) {
398: argc -= optind;
399: argv += optind;
400: }
1.185 schwarze 401:
1.202 schwarze 402: /*
1.338 schwarze 403: * Quirks for help(1) and man(1),
404: * in particular for a section argument without -s.
1.202 schwarze 405: */
406:
407: if (search.argmode == ARG_NAME) {
1.254 schwarze 408: if (*progname == 'h') {
1.202 schwarze 409: if (argc == 0) {
410: argv = help_argv;
411: argc = 1;
412: }
1.211 schwarze 413: } else if (argc > 1 &&
1.223 kristaps 414: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 415: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.324 schwarze 416: isalpha(uc[1]))) ||
1.207 schwarze 417: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 418: search.sec = (char *)uc;
1.202 schwarze 419: argv++;
420: argc--;
421: }
1.216 schwarze 422: if (search.arch == NULL)
423: search.arch = getenv("MACHINE");
1.223 kristaps 424: #ifdef MACHINE
1.216 schwarze 425: if (search.arch == NULL)
426: search.arch = MACHINE;
1.223 kristaps 427: #endif
1.338 schwarze 428: if (outmode == OUTMODE_ONE)
429: search.firstmatch = 1;
1.185 schwarze 430: }
1.182 schwarze 431:
1.316 schwarze 432: /*
433: * Use the first argument for -O tag in addition to
434: * using it as a search term for man(1) or apropos(1).
435: */
436:
437: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
438: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
439: strchr(*argv, '=') : NULL;
440: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
441: }
442:
1.338 schwarze 443: /* Read the configuration file. */
1.180 schwarze 444:
1.338 schwarze 445: if (search.argmode != ARG_FILE)
446: manconf_parse(&conf, conf_file, defpaths, auxpaths);
1.182 schwarze 447:
1.338 schwarze 448: /* man(1): Resolve each name individually. */
1.182 schwarze 449:
1.338 schwarze 450: if (search.argmode == ARG_NAME) {
1.343 ! schwarze 451: if (argc < 1) {
! 452: if (outmode != OUTMODE_FLN)
! 453: usage(ARG_NAME);
! 454: if (conf.manpath.sz == 0) {
! 455: warnx("The manpath is empty.");
! 456: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
! 457: } else {
! 458: for (i = 0; i + 1 < conf.manpath.sz; i++)
! 459: printf("%s:", conf.manpath.paths[i]);
! 460: printf("%s\n", conf.manpath.paths[i]);
! 461: }
! 462: manconf_free(&conf);
! 463: return (int)mandoc_msg_getrc();
! 464: }
1.338 schwarze 465: for (res = NULL, ressz = 0; argc > 0; argc--, argv++) {
466: (void)mansearch(&search, &conf.manpath,
467: 1, argv, &resn, &resnsz);
468: if (resnsz == 0)
469: (void)fs_search(&search, &conf.manpath,
1.340 schwarze 470: *argv, &resn, &resnsz);
471: if (resnsz == 0 && strchr(*argv, '/') == NULL) {
472: if (search.arch != NULL &&
473: arch_valid(search.arch, OSENUM) == 0)
474: warnx("Unknown architecture \"%s\".",
475: search.arch);
476: else if (search.sec != NULL)
477: warnx("No entry for %s in "
478: "section %s of the manual.",
479: *argv, search.sec);
480: else
481: warnx("No entry for %s in "
482: "the manual.", *argv);
483: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
484: continue;
485: }
1.338 schwarze 486: if (resnsz == 0) {
487: if (access(*argv, R_OK) == -1) {
488: mandoc_msg_setinfilename(*argv);
1.329 schwarze 489: mandoc_msg(MANDOCERR_BADARG_BAD,
490: 0, 0, "%s", strerror(errno));
491: mandoc_msg_setinfilename(NULL);
1.305 schwarze 492: continue;
493: }
1.338 schwarze 494: resnsz = 1;
495: resn = mandoc_calloc(resnsz, sizeof(*res));
496: resn->file = mandoc_strdup(*argv);
497: resn->ipath = SIZE_MAX;
498: resn->form = FORM_SRC;
499: }
500: if (outmode != OUTMODE_ONE || resnsz == 1) {
1.305 schwarze 501: res = mandoc_reallocarray(res,
1.338 schwarze 502: ressz + resnsz, sizeof(*res));
503: memcpy(res + ressz, resn,
504: sizeof(*resn) * resnsz);
505: ressz += resnsz;
506: continue;
1.305 schwarze 507: }
1.187 schwarze 508:
1.338 schwarze 509: /* Search for the best section. */
1.182 schwarze 510:
1.325 schwarze 511: best_prio = 40;
1.338 schwarze 512: for (ib = i = 0; i < resnsz; i++) {
513: sec = resn[i].file;
1.264 schwarze 514: sec += strcspn(sec, "123456789");
515: if (sec[0] == '\0')
1.325 schwarze 516: continue; /* No section at all. */
1.264 schwarze 517: prio = sec_prios[sec[0] - '1'];
1.325 schwarze 518: if (search.sec != NULL) {
519: ssz = strlen(search.sec);
520: if (strncmp(sec, search.sec, ssz) == 0)
521: sec += ssz;
522: } else
523: sec++; /* Prefer without suffix. */
524: if (*sec != '/')
525: prio += 10; /* Wrong dir name. */
526: if (search.sec != NULL &&
527: (strlen(sec) <= ssz + 3 ||
528: strcmp(sec + strlen(sec) - ssz,
529: search.sec) != 0))
530: prio += 20; /* Wrong file ext. */
1.182 schwarze 531: if (prio >= best_prio)
532: continue;
533: best_prio = prio;
1.338 schwarze 534: ib = i;
1.182 schwarze 535: }
1.338 schwarze 536: res = mandoc_reallocarray(res, ressz + 1,
537: sizeof(*res));
538: memcpy(res + ressz++, resn + ib, sizeof(*resn));
1.181 schwarze 539: }
1.182 schwarze 540:
1.338 schwarze 541: /* apropos(1), whatis(1): Process the full search expression. */
542:
543: } else if (search.argmode != ARG_FILE) {
544: if (mansearch(&search, &conf.manpath,
545: argc, argv, &res, &ressz) == 0)
546: usage(search.argmode);
1.182 schwarze 547:
1.338 schwarze 548: if (ressz == 0) {
549: warnx("nothing appropriate");
550: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.182 schwarze 551: goto out;
1.338 schwarze 552: }
553:
554: /* mandoc(1): Take command line arguments as file names. */
555:
1.337 schwarze 556: } else {
1.338 schwarze 557: ressz = argc > 0 ? argc : 1;
558: res = mandoc_calloc(ressz, sizeof(*res));
559: for (i = 0; i < ressz; i++) {
1.337 schwarze 560: if (argc > 0)
561: res[i].file = mandoc_strdup(argv[i]);
562: res[i].ipath = SIZE_MAX;
563: res[i].form = FORM_SRC;
564: }
1.180 schwarze 565: }
566:
1.338 schwarze 567: switch (outmode) {
568: case OUTMODE_FLN:
569: for (i = 0; i < ressz; i++)
570: puts(res[i].file);
571: goto out;
572: case OUTMODE_LST:
573: for (i = 0; i < ressz; i++)
574: printf("%s - %s\n", res[i].names,
575: res[i].output == NULL ? "" :
576: res[i].output);
577: goto out;
578: default:
579: break;
580: }
1.255 schwarze 581:
1.329 schwarze 582: if (search.argmode == ARG_FILE && auxpaths != NULL) {
583: if (strcmp(auxpaths, "doc") == 0)
584: options |= MPARSE_MDOC;
585: else if (strcmp(auxpaths, "an") == 0)
586: options |= MPARSE_MAN;
587: }
1.241 schwarze 588:
1.249 schwarze 589: mchars_alloc();
1.334 schwarze 590: mp = mparse_alloc(options, os_e, os_s);
1.154 kristaps 591:
1.305 schwarze 592: /*
593: * Remember the original working directory, if possible.
594: * This will be needed if some names on the command line
595: * are page names and some are relative file names.
596: * Do not error out if the current directory is not
597: * readable: Maybe it won't be needed after all.
598: */
599: startdir = open(".", O_RDONLY | O_DIRECTORY);
600:
1.338 schwarze 601: for (i = 0; i < ressz; i++) {
602: process_onefile(mp, res + i, startdir, &outst, &conf);
1.335 schwarze 603: if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 604: break;
1.1 kristaps 605: }
1.305 schwarze 606: if (startdir != -1) {
607: (void)fchdir(startdir);
608: close(startdir);
609: }
1.1 kristaps 610:
1.335 schwarze 611: if (outst.outdata != NULL) {
612: switch (outst.outtype) {
1.252 schwarze 613: case OUTT_HTML:
1.335 schwarze 614: html_free(outst.outdata);
1.252 schwarze 615: break;
616: case OUTT_UTF8:
617: case OUTT_LOCALE:
618: case OUTT_ASCII:
1.335 schwarze 619: ascii_free(outst.outdata);
1.252 schwarze 620: break;
621: case OUTT_PDF:
622: case OUTT_PS:
1.335 schwarze 623: pspdf_free(outst.outdata);
1.252 schwarze 624: break;
625: default:
626: break;
627: }
1.250 schwarze 628: }
1.294 schwarze 629: mandoc_xr_free();
1.334 schwarze 630: mparse_free(mp);
1.249 schwarze 631: mchars_free();
1.182 schwarze 632:
633: out:
1.338 schwarze 634: mansearch_free(res, ressz);
1.337 schwarze 635: if (search.argmode != ARG_FILE)
1.229 schwarze 636: manconf_free(&conf);
1.1 kristaps 637:
1.336 schwarze 638: if (outst.tag_files != NULL) {
1.225 schwarze 639: fclose(stdout);
1.239 schwarze 640: tag_write();
1.336 schwarze 641: run_pager(outst.tag_files);
1.239 schwarze 642: tag_unlink();
1.337 schwarze 643: } else if (outst.had_output && outst.outtype != OUTT_LINT)
1.330 schwarze 644: mandoc_msg_summary();
645:
1.312 schwarze 646: return (int)mandoc_msg_getrc();
1.1 kristaps 647: }
648:
1.55 kristaps 649: static void
1.180 schwarze 650: usage(enum argmode argmode)
1.1 kristaps 651: {
1.180 schwarze 652: switch (argmode) {
653: case ARG_FILE:
1.287 schwarze 654: fputs("usage: mandoc [-ac] [-I os=name] "
655: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 656: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 657: break;
658: case ARG_NAME:
1.287 schwarze 659: fputs("usage: man [-acfhklw] [-C file] [-M path] "
660: "[-m path] [-S subsection]\n"
661: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 662: break;
663: case ARG_WORD:
1.287 schwarze 664: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 665: "[-M path] [-m path] [-O outkey] [-S arch]\n"
666: "\t [-s section] name ...\n", stderr);
1.180 schwarze 667: break;
668: case ARG_EXPR:
1.287 schwarze 669: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 670: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 671: "\t [-s section] expression ...\n", stderr);
672: break;
673: }
1.105 kristaps 674: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 675: }
1.213 schwarze 676:
677: static int
678: fs_lookup(const struct manpaths *paths, size_t ipath,
679: const char *sec, const char *arch, const char *name,
680: struct manpage **res, size_t *ressz)
681: {
1.326 schwarze 682: struct stat sb;
1.222 schwarze 683: glob_t globinfo;
1.213 schwarze 684: struct manpage *page;
685: char *file;
1.274 schwarze 686: int globres;
687: enum form form;
1.213 schwarze 688:
1.222 schwarze 689: form = FORM_SRC;
1.213 schwarze 690: mandoc_asprintf(&file, "%s/man%s/%s.%s",
691: paths->paths[ipath], sec, name, sec);
1.326 schwarze 692: if (stat(file, &sb) != -1)
1.213 schwarze 693: goto found;
694: free(file);
695:
696: mandoc_asprintf(&file, "%s/cat%s/%s.0",
697: paths->paths[ipath], sec, name);
1.326 schwarze 698: if (stat(file, &sb) != -1) {
1.213 schwarze 699: form = FORM_CAT;
700: goto found;
701: }
702: free(file);
703:
704: if (arch != NULL) {
705: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
706: paths->paths[ipath], sec, arch, name, sec);
1.326 schwarze 707: if (stat(file, &sb) != -1)
1.213 schwarze 708: goto found;
709: free(file);
710: }
1.222 schwarze 711:
1.240 schwarze 712: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 713: paths->paths[ipath], sec, name);
714: globres = glob(file, 0, NULL, &globinfo);
715: if (globres != 0 && globres != GLOB_NOMATCH)
1.329 schwarze 716: mandoc_msg(MANDOCERR_GLOB, 0, 0,
717: "%s: %s", file, strerror(errno));
1.222 schwarze 718: free(file);
719: if (globres == 0)
720: file = mandoc_strdup(*globinfo.gl_pathv);
721: globfree(&globinfo);
1.326 schwarze 722: if (globres == 0) {
723: if (stat(file, &sb) != -1)
724: goto found;
725: free(file);
726: }
1.296 schwarze 727: if (res != NULL || ipath + 1 != paths->sz)
1.329 schwarze 728: return -1;
1.213 schwarze 729:
1.296 schwarze 730: mandoc_asprintf(&file, "%s.%s", name, sec);
1.326 schwarze 731: globres = stat(file, &sb);
1.296 schwarze 732: free(file);
1.329 schwarze 733: return globres;
1.296 schwarze 734:
1.213 schwarze 735: found:
1.266 schwarze 736: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
737: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 738: if (res == NULL) {
739: free(file);
1.329 schwarze 740: return 0;
1.296 schwarze 741: }
1.329 schwarze 742: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.213 schwarze 743: page = *res + (*ressz - 1);
744: page->file = file;
745: page->names = NULL;
746: page->output = NULL;
1.323 schwarze 747: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 748: page->ipath = ipath;
749: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
750: page->form = form;
1.329 schwarze 751: return 0;
1.213 schwarze 752: }
753:
1.295 schwarze 754: static int
1.213 schwarze 755: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
1.340 schwarze 756: const char *name, struct manpage **res, size_t *ressz)
1.213 schwarze 757: {
758: const char *const sections[] =
1.264 schwarze 759: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 760: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
761:
1.340 schwarze 762: size_t ipath, isec;
1.213 schwarze 763:
764: assert(cfg->argmode == ARG_NAME);
1.295 schwarze 765: if (res != NULL)
766: *res = NULL;
1.340 schwarze 767: *ressz = 0;
768: for (ipath = 0; ipath < paths->sz; ipath++) {
769: if (cfg->sec != NULL) {
770: if (fs_lookup(paths, ipath, cfg->sec, cfg->arch,
771: name, res, ressz) != -1 && cfg->firstmatch)
772: return 0;
773: } else {
774: for (isec = 0; isec < nsec; isec++)
1.213 schwarze 775: if (fs_lookup(paths, ipath, sections[isec],
1.340 schwarze 776: cfg->arch, name, res, ressz) != -1 &&
1.213 schwarze 777: cfg->firstmatch)
1.329 schwarze 778: return 0;
1.213 schwarze 779: }
780: }
1.329 schwarze 781: return -1;
1.213 schwarze 782: }
1.68 joerg 783:
1.64 kristaps 784: static void
1.337 schwarze 785: process_onefile(struct mparse *mp, struct manpage *resp, int startdir,
786: struct outstate *outst, struct manconf *conf)
787: {
788: int fd;
789:
790: /*
791: * Changing directories is not needed in ARG_FILE mode.
792: * Do it on a best-effort basis. Even in case of
793: * failure, some functionality may still work.
794: */
795: if (resp->ipath != SIZE_MAX)
796: (void)chdir(conf->manpath.paths[resp->ipath]);
797: else if (startdir != -1)
798: (void)fchdir(startdir);
799:
800: mandoc_msg_setinfilename(resp->file);
801: if (resp->file != NULL) {
802: if ((fd = mparse_open(mp, resp->file)) == -1) {
803: mandoc_msg(resp->ipath == SIZE_MAX ?
804: MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
805: 0, 0, "%s", strerror(errno));
806: mandoc_msg_setinfilename(NULL);
807: return;
808: }
809: } else
810: fd = STDIN_FILENO;
811:
812: if (outst->use_pager) {
813: outst->use_pager = 0;
814: outst->tag_files = tag_init(conf->output.tag);
815: }
816:
817: if (outst->had_output && outst->outtype <= OUTT_UTF8) {
818: if (outst->outdata == NULL)
819: outdata_alloc(outst, &conf->output);
820: terminal_sepline(outst->outdata);
821: }
822:
823: if (resp->form == FORM_SRC)
824: parse(mp, fd, resp->file, outst, &conf->output);
825: else {
826: passthrough(fd, conf->output.synopsisonly);
827: outst->had_output = 1;
828: }
829:
830: if (ferror(stdout)) {
831: if (outst->tag_files != NULL) {
832: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
833: outst->tag_files->ofn, strerror(errno));
834: tag_unlink();
835: outst->tag_files = NULL;
836: } else
837: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
838: strerror(errno));
839: }
840: mandoc_msg_setinfilename(NULL);
841: }
842:
843: static void
1.335 schwarze 844: parse(struct mparse *mp, int fd, const char *file,
845: struct outstate *outst, struct manoutput *outconf)
1.1 kristaps 846: {
1.337 schwarze 847: static int previous;
848: struct roff_meta *meta;
1.112 kristaps 849:
1.337 schwarze 850: assert(fd >= 0);
851: if (file == NULL)
852: file = "<stdin>";
1.112 kristaps 853:
1.337 schwarze 854: if (previous)
855: mparse_reset(mp);
856: else
857: previous = 1;
1.112 kristaps 858:
1.334 schwarze 859: mparse_readfd(mp, fd, file);
1.261 schwarze 860: if (fd != STDIN_FILENO)
861: close(fd);
1.112 kristaps 862:
1.1 kristaps 863: /*
1.154 kristaps 864: * With -Wstop and warnings or errors of at least the requested
865: * level, do not produce output.
1.1 kristaps 866: */
867:
1.335 schwarze 868: if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 869: return;
1.111 kristaps 870:
1.335 schwarze 871: if (outst->outdata == NULL)
872: outdata_alloc(outst, outconf);
873: else if (outst->outtype == OUTT_HTML)
874: html_reset(outst);
1.111 kristaps 875:
1.315 schwarze 876: mandoc_xr_reset();
1.334 schwarze 877: meta = mparse_result(mp);
1.250 schwarze 878:
879: /* Execute the out device, if it exists. */
880:
1.337 schwarze 881: outst->had_output = 1;
1.315 schwarze 882: if (meta->macroset == MACROSET_MDOC) {
1.335 schwarze 883: switch (outst->outtype) {
1.173 schwarze 884: case OUTT_HTML:
1.335 schwarze 885: html_mdoc(outst->outdata, meta);
1.111 kristaps 886: break;
1.173 schwarze 887: case OUTT_TREE:
1.335 schwarze 888: tree_mdoc(outst->outdata, meta);
1.111 kristaps 889: break;
1.173 schwarze 890: case OUTT_MAN:
1.335 schwarze 891: man_mdoc(outst->outdata, meta);
1.164 schwarze 892: break;
1.173 schwarze 893: case OUTT_PDF:
894: case OUTT_ASCII:
895: case OUTT_UTF8:
896: case OUTT_LOCALE:
897: case OUTT_PS:
1.335 schwarze 898: terminal_mdoc(outst->outdata, meta);
1.250 schwarze 899: break;
1.285 schwarze 900: case OUTT_MARKDOWN:
1.335 schwarze 901: markdown_mdoc(outst->outdata, meta);
1.285 schwarze 902: break;
1.250 schwarze 903: default:
904: break;
905: }
906: }
1.315 schwarze 907: if (meta->macroset == MACROSET_MAN) {
1.335 schwarze 908: switch (outst->outtype) {
1.250 schwarze 909: case OUTT_HTML:
1.335 schwarze 910: html_man(outst->outdata, meta);
1.250 schwarze 911: break;
912: case OUTT_TREE:
1.335 schwarze 913: tree_man(outst->outdata, meta);
1.250 schwarze 914: break;
915: case OUTT_MAN:
1.334 schwarze 916: mparse_copy(mp);
1.250 schwarze 917: break;
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_man(outst->outdata, meta);
1.111 kristaps 924: break;
925: default:
926: break;
927: }
1.276 schwarze 928: }
1.312 schwarze 929: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
930: check_xr();
1.294 schwarze 931: }
932:
933: static void
1.312 schwarze 934: check_xr(void)
1.294 schwarze 935: {
936: static struct manpaths paths;
937: struct mansearch search;
938: struct mandoc_xr *xr;
939: size_t sz;
940:
941: if (paths.sz == 0)
942: manpath_base(&paths);
943:
944: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 945: if (xr->line == -1)
946: continue;
1.294 schwarze 947: search.arch = NULL;
948: search.sec = xr->sec;
949: search.outkey = NULL;
950: search.argmode = ARG_NAME;
951: search.firstmatch = 1;
952: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 953: continue;
1.340 schwarze 954: if (fs_search(&search, &paths, xr->name, NULL, &sz) != -1)
1.294 schwarze 955: continue;
1.298 schwarze 956: if (xr->count == 1)
1.313 schwarze 957: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
958: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 959: else
1.313 schwarze 960: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
961: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 962: xr->name, xr->sec, xr->count);
1.294 schwarze 963: }
1.276 schwarze 964: }
965:
966: static void
1.335 schwarze 967: outdata_alloc(struct outstate *outst, struct manoutput *outconf)
1.276 schwarze 968: {
1.335 schwarze 969: switch (outst->outtype) {
1.276 schwarze 970: case OUTT_HTML:
1.335 schwarze 971: outst->outdata = html_alloc(outconf);
1.276 schwarze 972: break;
973: case OUTT_UTF8:
1.335 schwarze 974: outst->outdata = utf8_alloc(outconf);
1.276 schwarze 975: break;
976: case OUTT_LOCALE:
1.335 schwarze 977: outst->outdata = locale_alloc(outconf);
1.276 schwarze 978: break;
979: case OUTT_ASCII:
1.335 schwarze 980: outst->outdata = ascii_alloc(outconf);
1.276 schwarze 981: break;
982: case OUTT_PDF:
1.335 schwarze 983: outst->outdata = pdf_alloc(outconf);
1.276 schwarze 984: break;
985: case OUTT_PS:
1.335 schwarze 986: outst->outdata = ps_alloc(outconf);
1.276 schwarze 987: break;
988: default:
989: break;
1.111 kristaps 990: }
1.186 schwarze 991: }
992:
1.227 schwarze 993: static void
1.329 schwarze 994: passthrough(int fd, int synopsis_only)
1.186 schwarze 995: {
1.197 schwarze 996: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
997: const char synr[] = "SYNOPSIS";
998:
999: FILE *stream;
1.257 schwarze 1000: char *line, *cp;
1001: size_t linesz;
1.277 schwarze 1002: ssize_t len, written;
1.329 schwarze 1003: int lno, print;
1.210 schwarze 1004:
1.329 schwarze 1005: stream = NULL;
1.257 schwarze 1006: line = NULL;
1007: linesz = 0;
1.197 schwarze 1008:
1.277 schwarze 1009: if (fflush(stdout) == EOF) {
1.329 schwarze 1010: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
1011: goto done;
1.277 schwarze 1012: }
1.197 schwarze 1013: if ((stream = fdopen(fd, "r")) == NULL) {
1014: close(fd);
1.329 schwarze 1015: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
1016: goto done;
1.197 schwarze 1017: }
1.186 schwarze 1018:
1.329 schwarze 1019: lno = print = 0;
1.277 schwarze 1020: while ((len = getline(&line, &linesz, stream)) != -1) {
1.329 schwarze 1021: lno++;
1.257 schwarze 1022: cp = line;
1.197 schwarze 1023: if (synopsis_only) {
1024: if (print) {
1.257 schwarze 1025: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 1026: goto done;
1.277 schwarze 1027: while (isspace((unsigned char)*cp)) {
1.257 schwarze 1028: cp++;
1.277 schwarze 1029: len--;
1030: }
1.197 schwarze 1031: } else {
1.257 schwarze 1032: if (strcmp(cp, synb) == 0 ||
1033: strcmp(cp, synr) == 0)
1.197 schwarze 1034: print = 1;
1035: continue;
1036: }
1037: }
1.277 schwarze 1038: for (; len > 0; len -= written) {
1.329 schwarze 1039: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1040: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1041: "%s", strerror(errno));
1042: goto done;
1043: }
1.257 schwarze 1044: }
1.197 schwarze 1045: }
1.329 schwarze 1046: if (ferror(stream))
1047: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.193 schwarze 1048:
1.197 schwarze 1049: done:
1.257 schwarze 1050: free(line);
1.329 schwarze 1051: if (stream != NULL)
1052: fclose(stream);
1.1 kristaps 1053: }
1054:
1055: static int
1.334 schwarze 1056: woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1.1 kristaps 1057: {
1.34 kristaps 1058: char *v, *o;
1.293 schwarze 1059: const char *toks[11];
1.1 kristaps 1060:
1.103 schwarze 1061: toks[0] = "stop";
1062: toks[1] = "all";
1.293 schwarze 1063: toks[2] = "base";
1064: toks[3] = "style";
1065: toks[4] = "warning";
1066: toks[5] = "error";
1067: toks[6] = "unsupp";
1068: toks[7] = "fatal";
1069: toks[8] = "openbsd";
1070: toks[9] = "netbsd";
1071: toks[10] = NULL;
1.1 kristaps 1072:
1.34 kristaps 1073: while (*arg) {
1074: o = arg;
1.272 schwarze 1075: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1076: case 0:
1.334 schwarze 1077: *wstop = 1;
1.1 kristaps 1078: break;
1.173 schwarze 1079: case 1:
1080: case 2:
1.312 schwarze 1081: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1082: break;
1083: case 3:
1.312 schwarze 1084: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1085: break;
1.290 schwarze 1086: case 4:
1.312 schwarze 1087: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1088: break;
1.290 schwarze 1089: case 5:
1.312 schwarze 1090: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1091: break;
1.290 schwarze 1092: case 6:
1.312 schwarze 1093: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1094: break;
1095: case 7:
1.329 schwarze 1096: mandoc_msg_setmin(MANDOCERR_BADARG);
1.293 schwarze 1097: break;
1098: case 8:
1.312 schwarze 1099: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1100: *os_e = MANDOC_OS_OPENBSD;
1.293 schwarze 1101: break;
1102: case 9:
1.312 schwarze 1103: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1104: *os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1105: break;
1.1 kristaps 1106: default:
1.329 schwarze 1107: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1108: return -1;
1.1 kristaps 1109: }
1.34 kristaps 1110: }
1.329 schwarze 1111: return 0;
1.333 schwarze 1112: }
1113:
1114: /*
1115: * Wait until moved to the foreground,
1116: * then fork the pager and wait for the user to close it.
1117: */
1118: static void
1119: run_pager(struct tag_files *tag_files)
1120: {
1121: int signum, status;
1122: pid_t man_pgid, tc_pgid;
1123: pid_t pager_pid, wait_pid;
1124:
1125: man_pgid = getpgid(0);
1126: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
1127: man_pgid;
1128: pager_pid = 0;
1129: signum = SIGSTOP;
1130:
1131: for (;;) {
1132: /* Stop here until moved to the foreground. */
1133:
1134: tc_pgid = tcgetpgrp(tag_files->ofd);
1135: if (tc_pgid != man_pgid) {
1136: if (tc_pgid == pager_pid) {
1137: (void)tcsetpgrp(tag_files->ofd, man_pgid);
1138: if (signum == SIGTTIN)
1139: continue;
1140: } else
1141: tag_files->tcpgid = tc_pgid;
1142: kill(0, signum);
1143: continue;
1144: }
1145:
1146: /* Once in the foreground, activate the pager. */
1147:
1148: if (pager_pid) {
1149: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1150: kill(pager_pid, SIGCONT);
1151: } else
1152: pager_pid = spawn_pager(tag_files);
1153:
1154: /* Wait for the pager to stop or exit. */
1155:
1156: while ((wait_pid = waitpid(pager_pid, &status,
1157: WUNTRACED)) == -1 && errno == EINTR)
1158: continue;
1159:
1160: if (wait_pid == -1) {
1161: mandoc_msg(MANDOCERR_WAIT, 0, 0,
1162: "%s", strerror(errno));
1163: break;
1164: }
1165: if (!WIFSTOPPED(status))
1166: break;
1167:
1168: signum = WSTOPSIG(status);
1169: }
1.183 schwarze 1170: }
1171:
1.225 schwarze 1172: static pid_t
1.244 schwarze 1173: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1174: {
1.265 schwarze 1175: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1176: #define MAX_PAGER_ARGS 16
1177: char *argv[MAX_PAGER_ARGS];
1178: const char *pager;
1179: char *cp;
1.322 schwarze 1180: #if HAVE_LESS_T
1.239 schwarze 1181: size_t cmdlen;
1.322 schwarze 1182: #endif
1.309 schwarze 1183: int argc, use_ofn;
1.225 schwarze 1184: pid_t pager_pid;
1.183 schwarze 1185:
1.239 schwarze 1186: pager = getenv("MANPAGER");
1187: if (pager == NULL || *pager == '\0')
1188: pager = getenv("PAGER");
1189: if (pager == NULL || *pager == '\0')
1190: pager = "more -s";
1191: cp = mandoc_strdup(pager);
1192:
1193: /*
1194: * Parse the pager command into words.
1195: * Intentionally do not do anything fancy here.
1196: */
1197:
1198: argc = 0;
1.309 schwarze 1199: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1200: argv[argc++] = cp;
1201: cp = strchr(cp, ' ');
1202: if (cp == NULL)
1203: break;
1204: *cp++ = '\0';
1205: while (*cp == ' ')
1206: cp++;
1207: if (*cp == '\0')
1208: break;
1209: }
1210:
1.268 schwarze 1211: /* For less(1), use the tag file. */
1.239 schwarze 1212:
1.309 schwarze 1213: use_ofn = 1;
1.322 schwarze 1214: #if HAVE_LESS_T
1.332 schwarze 1215: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1216: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1217: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1218: argv[argc++] = mandoc_strdup("-T");
1219: argv[argc++] = tag_files->tfn;
1.309 schwarze 1220: if (tag_files->tagname != NULL) {
1221: argv[argc++] = mandoc_strdup("-t");
1222: argv[argc++] = tag_files->tagname;
1223: use_ofn = 0;
1224: }
1.244 schwarze 1225: }
1.239 schwarze 1226: }
1.322 schwarze 1227: #endif
1.309 schwarze 1228: if (use_ofn)
1229: argv[argc++] = tag_files->ofn;
1.239 schwarze 1230: argv[argc] = NULL;
1231:
1.225 schwarze 1232: switch (pager_pid = fork()) {
1.183 schwarze 1233: case -1:
1.329 schwarze 1234: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1235: exit(mandoc_msg_getrc());
1.183 schwarze 1236: case 0:
1.224 schwarze 1237: break;
1238: default:
1.258 schwarze 1239: (void)setpgid(pager_pid, 0);
1.279 schwarze 1240: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1241: #if HAVE_PLEDGE
1.329 schwarze 1242: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1243: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1244: "%s", strerror(errno));
1245: exit(mandoc_msg_getrc());
1246: }
1.255 schwarze 1247: #endif
1.259 schwarze 1248: tag_files->pager_pid = pager_pid;
1.245 schwarze 1249: return pager_pid;
1.184 schwarze 1250: }
1251:
1.224 schwarze 1252: /* The child process becomes the pager. */
1.184 schwarze 1253:
1.329 schwarze 1254: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1255: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1256: _exit(mandoc_msg_getrc());
1257: }
1.244 schwarze 1258: close(tag_files->ofd);
1.303 schwarze 1259: assert(tag_files->tfd == -1);
1.265 schwarze 1260:
1261: /* Do not start the pager before controlling the terminal. */
1262:
1.279 schwarze 1263: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1264: nanosleep(&timeout, NULL);
1265:
1.184 schwarze 1266: execvp(argv[0], argv);
1.329 schwarze 1267: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1268: _exit(mandoc_msg_getrc());
1.71 kristaps 1269: }
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