Annotation of mandoc/main.c, Revision 1.337
1.337 ! schwarze 1: /* $Id: main.c,v 1.336 2019/07/27 13:40:57 schwarze Exp $ */
1.1 kristaps 2: /*
1.183 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.317 schwarze 4: * Copyright (c) 2010-2012, 2014-2019 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>
1.269 kristaps 35: #if HAVE_SANDBOX_INIT
36: #include <sandbox.h>
37: #endif
1.226 schwarze 38: #include <signal.h>
1.1 kristaps 39: #include <stdio.h>
1.45 kristaps 40: #include <stdint.h>
1.1 kristaps 41: #include <stdlib.h>
42: #include <string.h>
1.321 schwarze 43: #include <termios.h>
1.265 schwarze 44: #include <time.h>
1.1 kristaps 45: #include <unistd.h>
46:
1.231 schwarze 47: #include "mandoc_aux.h"
1.71 kristaps 48: #include "mandoc.h"
1.294 schwarze 49: #include "mandoc_xr.h"
1.231 schwarze 50: #include "roff.h"
1.1 kristaps 51: #include "mdoc.h"
1.10 kristaps 52: #include "man.h"
1.311 schwarze 53: #include "mandoc_parse.h"
1.239 schwarze 54: #include "tag.h"
1.231 schwarze 55: #include "main.h"
1.229 schwarze 56: #include "manconf.h"
1.180 schwarze 57: #include "mansearch.h"
1.16 kristaps 58:
1.181 schwarze 59: enum outmode {
60: OUTMODE_DEF = 0,
61: OUTMODE_FLN,
62: OUTMODE_LST,
63: OUTMODE_ALL,
64: OUTMODE_ONE
65: };
66:
1.19 kristaps 67: enum outt {
1.154 kristaps 68: OUTT_ASCII = 0, /* -Tascii */
1.162 kristaps 69: OUTT_LOCALE, /* -Tlocale */
1.163 kristaps 70: OUTT_UTF8, /* -Tutf8 */
1.154 kristaps 71: OUTT_TREE, /* -Ttree */
1.164 schwarze 72: OUTT_MAN, /* -Tman */
1.154 kristaps 73: OUTT_HTML, /* -Thtml */
1.285 schwarze 74: OUTT_MARKDOWN, /* -Tmarkdown */
1.154 kristaps 75: OUTT_LINT, /* -Tlint */
76: OUTT_PS, /* -Tps */
77: OUTT_PDF /* -Tpdf */
1.19 kristaps 78: };
79:
1.335 schwarze 80: struct outstate {
1.336 schwarze 81: struct tag_files *tag_files; /* Tagging state variables. */
1.293 schwarze 82: void *outdata; /* data for output */
1.336 schwarze 83: int use_pager;
1.148 kristaps 84: int wstop; /* stop after a file with a warning */
1.337 ! schwarze 85: int had_output; /* Some output was generated. */
1.173 schwarze 86: enum outt outtype; /* which output to use */
1.79 kristaps 87: };
1.270 schwarze 88:
89:
90: int mandocdb(int, char *[]);
1.79 kristaps 91:
1.312 schwarze 92: static void check_xr(void);
1.213 schwarze 93: static int fs_lookup(const struct manpaths *,
94: size_t ipath, const char *,
95: const char *, const char *,
96: struct manpage **, size_t *);
1.295 schwarze 97: static int fs_search(const struct mansearch *,
1.213 schwarze 98: const struct manpaths *, int, char**,
99: struct manpage **, size_t *);
1.335 schwarze 100: static void outdata_alloc(struct outstate *, struct manoutput *);
1.334 schwarze 101: static void parse(struct mparse *, int, const char *,
1.335 schwarze 102: struct outstate *, struct manoutput *);
1.329 schwarze 103: static void passthrough(int, int);
1.337 ! schwarze 104: static void process_onefile(struct mparse *, struct manpage *,
! 105: int, struct outstate *, struct manconf *);
1.333 schwarze 106: static void run_pager(struct tag_files *);
1.244 schwarze 107: static pid_t spawn_pager(struct tag_files *);
1.283 schwarze 108: static void usage(enum argmode) __attribute__((__noreturn__));
1.334 schwarze 109: static int woptions(char *, enum mandoc_os *, int *);
1.1 kristaps 110:
1.182 schwarze 111: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.202 schwarze 112: static char help_arg[] = "help";
113: static char *help_argv[] = {help_arg, NULL};
1.1 kristaps 114:
1.173 schwarze 115:
1.1 kristaps 116: int
117: main(int argc, char *argv[])
118: {
1.334 schwarze 119: struct manconf conf; /* Manpaths and output options. */
1.335 schwarze 120: struct outstate outst; /* Output state. */
1.334 schwarze 121: struct winsize ws; /* Result of ioctl(TIOCGWINSZ). */
122: struct mansearch search; /* Search options. */
123: struct manpage *res, *resp; /* Search results. */
124: struct mparse *mp; /* Opaque parser object. */
125: const char *conf_file; /* -C: alternate config file. */
126: const char *os_s; /* -I: Operating system for display. */
1.337 ! schwarze 127: const char *progname, *sec;
1.334 schwarze 128: char *defpaths; /* -M: override manpaths. */
129: char *auxpaths; /* -m: additional manpaths. */
130: char *oarg; /* -O: output option string. */
131: char *tagarg; /* -O tag: default value. */
1.207 schwarze 132: unsigned char *uc;
1.334 schwarze 133: size_t sz; /* Number of elements in res[]. */
134: size_t i, ssz;
135: int options; /* Parser options. */
136: int show_usage; /* Invalid argument: give up. */
1.230 schwarze 137: int prio, best_prio;
1.337 ! schwarze 138: int startdir;
1.180 schwarze 139: int c;
1.334 schwarze 140: enum mandoc_os os_e; /* Check base system conventions. */
141: enum outmode outmode; /* According to command line. */
1.1 kristaps 142:
1.254 schwarze 143: #if HAVE_PROGNAME
144: progname = getprogname();
145: #else
1.219 schwarze 146: if (argc < 1)
1.254 schwarze 147: progname = mandoc_strdup("mandoc");
148: else if ((progname = strrchr(argv[0], '/')) == NULL)
149: progname = argv[0];
1.54 kristaps 150: else
1.254 schwarze 151: ++progname;
152: setprogname(progname);
1.247 schwarze 153: #endif
1.203 schwarze 154:
1.317 schwarze 155: mandoc_msg_setoutfile(stderr);
1.254 schwarze 156: if (strncmp(progname, "mandocdb", 8) == 0 ||
157: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 158: return mandocdb(argc, argv);
1.179 schwarze 159:
1.255 schwarze 160: #if HAVE_PLEDGE
1.329 schwarze 161: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
162: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
163: return mandoc_msg_getrc();
164: }
1.269 kristaps 165: #endif
166: #if HAVE_SANDBOX_INIT
167: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
168: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 169: #endif
170:
1.180 schwarze 171: /* Search options. */
172:
1.229 schwarze 173: memset(&conf, 0, sizeof(conf));
1.334 schwarze 174: conf_file = NULL;
175: defpaths = auxpaths = NULL;
1.180 schwarze 176:
177: memset(&search, 0, sizeof(struct mansearch));
178: search.outkey = "Nd";
1.282 schwarze 179: oarg = NULL;
1.180 schwarze 180:
1.254 schwarze 181: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 182: search.argmode = ARG_NAME;
1.254 schwarze 183: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 184: search.argmode = ARG_EXPR;
1.254 schwarze 185: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 186: search.argmode = ARG_WORD;
1.254 schwarze 187: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 188: search.argmode = ARG_NAME;
1.180 schwarze 189: else
190: search.argmode = ARG_FILE;
191:
1.335 schwarze 192: /* Parser options. */
1.54 kristaps 193:
1.335 schwarze 194: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.334 schwarze 195: os_e = MANDOC_OS_OTHER;
196: os_s = NULL;
1.335 schwarze 197:
198: /* Formatter options. */
199:
200: memset(&outst, 0, sizeof(outst));
1.336 schwarze 201: outst.tag_files = NULL;
1.335 schwarze 202: outst.outtype = OUTT_LOCALE;
1.336 schwarze 203: outst.use_pager = 1;
1.19 kristaps 204:
1.180 schwarze 205: show_usage = 0;
1.181 schwarze 206: outmode = OUTMODE_DEF;
1.183 schwarze 207:
1.289 schwarze 208: while ((c = getopt(argc, argv,
209: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
210: if (c == 'i' && search.argmode == ARG_EXPR) {
211: optind--;
212: break;
213: }
1.1 kristaps 214: switch (c) {
1.181 schwarze 215: case 'a':
216: outmode = OUTMODE_ALL;
217: break;
1.180 schwarze 218: case 'C':
219: conf_file = optarg;
220: break;
1.183 schwarze 221: case 'c':
1.336 schwarze 222: outst.use_pager = 0;
1.183 schwarze 223: break;
1.180 schwarze 224: case 'f':
225: search.argmode = ARG_WORD;
226: break;
1.190 schwarze 227: case 'h':
1.230 schwarze 228: conf.output.synopsisonly = 1;
1.336 schwarze 229: outst.use_pager = 0;
1.190 schwarze 230: outmode = OUTMODE_ALL;
231: break;
1.173 schwarze 232: case 'I':
1.329 schwarze 233: if (strncmp(optarg, "os=", 3) != 0) {
234: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
235: "-I %s", optarg);
236: return mandoc_msg_getrc();
1.166 schwarze 237: }
1.334 schwarze 238: if (os_s != NULL) {
1.329 schwarze 239: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
240: "-I %s", optarg);
241: return mandoc_msg_getrc();
1.166 schwarze 242: }
1.334 schwarze 243: os_s = optarg + 3;
1.181 schwarze 244: break;
1.194 schwarze 245: case 'K':
1.329 schwarze 246: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
247: if (strcmp(optarg, "utf-8") == 0)
248: options |= MPARSE_UTF8;
249: else if (strcmp(optarg, "iso-8859-1") == 0)
250: options |= MPARSE_LATIN1;
251: else if (strcmp(optarg, "us-ascii") != 0) {
252: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
253: "-K %s", optarg);
254: return mandoc_msg_getrc();
255: }
1.194 schwarze 256: break;
1.180 schwarze 257: case 'k':
258: search.argmode = ARG_EXPR;
259: break;
1.188 schwarze 260: case 'l':
261: search.argmode = ARG_FILE;
262: outmode = OUTMODE_ALL;
263: break;
1.180 schwarze 264: case 'M':
265: defpaths = optarg;
266: break;
1.173 schwarze 267: case 'm':
1.180 schwarze 268: auxpaths = optarg;
1.10 kristaps 269: break;
1.173 schwarze 270: case 'O':
1.282 schwarze 271: oarg = optarg;
1.44 kristaps 272: break;
1.180 schwarze 273: case 'S':
274: search.arch = optarg;
275: break;
276: case 's':
277: search.sec = optarg;
278: break;
1.173 schwarze 279: case 'T':
1.329 schwarze 280: if (strcmp(optarg, "ascii") == 0)
1.335 schwarze 281: outst.outtype = OUTT_ASCII;
1.329 schwarze 282: else if (strcmp(optarg, "lint") == 0) {
1.335 schwarze 283: outst.outtype = OUTT_LINT;
1.329 schwarze 284: mandoc_msg_setoutfile(stdout);
285: mandoc_msg_setmin(MANDOCERR_BASE);
286: } else if (strcmp(optarg, "tree") == 0)
1.335 schwarze 287: outst.outtype = OUTT_TREE;
1.329 schwarze 288: else if (strcmp(optarg, "man") == 0)
1.335 schwarze 289: outst.outtype = OUTT_MAN;
1.329 schwarze 290: else if (strcmp(optarg, "html") == 0)
1.335 schwarze 291: outst.outtype = OUTT_HTML;
1.329 schwarze 292: else if (strcmp(optarg, "markdown") == 0)
1.335 schwarze 293: outst.outtype = OUTT_MARKDOWN;
1.329 schwarze 294: else if (strcmp(optarg, "utf8") == 0)
1.335 schwarze 295: outst.outtype = OUTT_UTF8;
1.329 schwarze 296: else if (strcmp(optarg, "locale") == 0)
1.335 schwarze 297: outst.outtype = OUTT_LOCALE;
1.329 schwarze 298: else if (strcmp(optarg, "ps") == 0)
1.335 schwarze 299: outst.outtype = OUTT_PS;
1.329 schwarze 300: else if (strcmp(optarg, "pdf") == 0)
1.335 schwarze 301: outst.outtype = OUTT_PDF;
1.329 schwarze 302: else {
303: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
304: "-T %s", optarg);
305: return mandoc_msg_getrc();
306: }
1.1 kristaps 307: break;
1.173 schwarze 308: case 'W':
1.335 schwarze 309: if (woptions(optarg, &os_e, &outst.wstop) == -1)
1.329 schwarze 310: return mandoc_msg_getrc();
1.1 kristaps 311: break;
1.181 schwarze 312: case 'w':
313: outmode = OUTMODE_FLN;
314: break;
1.1 kristaps 315: default:
1.180 schwarze 316: show_usage = 1;
317: break;
1.1 kristaps 318: }
1.180 schwarze 319: }
320:
321: if (show_usage)
322: usage(search.argmode);
323:
1.185 schwarze 324: /* Postprocess options. */
325:
1.181 schwarze 326: if (outmode == OUTMODE_DEF) {
327: switch (search.argmode) {
328: case ARG_FILE:
329: outmode = OUTMODE_ALL;
1.336 schwarze 330: outst.use_pager = 0;
1.181 schwarze 331: break;
332: case ARG_NAME:
333: outmode = OUTMODE_ONE;
334: break;
335: default:
336: outmode = OUTMODE_LST;
337: break;
1.282 schwarze 338: }
339: }
340:
341: if (oarg != NULL) {
342: if (outmode == OUTMODE_LST)
343: search.outkey = oarg;
344: else {
345: while (oarg != NULL) {
346: if (manconf_output(&conf.output,
1.327 schwarze 347: strsep(&oarg, ","), 0) == -1)
1.329 schwarze 348: return mandoc_msg_getrc();
1.282 schwarze 349: }
1.181 schwarze 350: }
351: }
352:
1.335 schwarze 353: if (outst.outtype != OUTT_TREE || conf.output.noval == 0)
1.315 schwarze 354: options |= MPARSE_VALIDATE;
355:
1.246 schwarze 356: if (outmode == OUTMODE_FLN ||
357: outmode == OUTMODE_LST ||
358: !isatty(STDOUT_FILENO))
1.336 schwarze 359: outst.use_pager = 0;
1.304 schwarze 360:
1.336 schwarze 361: if (outst.use_pager &&
1.304 schwarze 362: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 363: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
364: ws.ws_col > 1) {
1.304 schwarze 365: if (conf.output.width == 0 && ws.ws_col < 79)
366: conf.output.width = ws.ws_col - 1;
367: if (conf.output.indent == 0 && ws.ws_col < 66)
368: conf.output.indent = 3;
369: }
1.246 schwarze 370:
1.255 schwarze 371: #if HAVE_PLEDGE
1.336 schwarze 372: if (outst.use_pager == 0) {
1.329 schwarze 373: if (pledge("stdio rpath", NULL) == -1) {
374: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
375: "%s", strerror(errno));
376: return mandoc_msg_getrc();
377: }
378: }
1.255 schwarze 379: #endif
380:
1.185 schwarze 381: /* Parse arguments. */
382:
1.219 schwarze 383: if (argc > 0) {
384: argc -= optind;
385: argv += optind;
386: }
1.186 schwarze 387: resp = NULL;
1.185 schwarze 388:
1.202 schwarze 389: /*
390: * Quirks for help(1)
391: * and for a man(1) section argument without -s.
392: */
393:
394: if (search.argmode == ARG_NAME) {
1.254 schwarze 395: if (*progname == 'h') {
1.202 schwarze 396: if (argc == 0) {
397: argv = help_argv;
398: argc = 1;
399: }
1.211 schwarze 400: } else if (argc > 1 &&
1.223 kristaps 401: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 402: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.324 schwarze 403: isalpha(uc[1]))) ||
1.207 schwarze 404: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 405: search.sec = (char *)uc;
1.202 schwarze 406: argv++;
407: argc--;
408: }
1.216 schwarze 409: if (search.arch == NULL)
410: search.arch = getenv("MACHINE");
1.223 kristaps 411: #ifdef MACHINE
1.216 schwarze 412: if (search.arch == NULL)
413: search.arch = MACHINE;
1.223 kristaps 414: #endif
1.185 schwarze 415: }
1.182 schwarze 416:
1.316 schwarze 417: /*
418: * Use the first argument for -O tag in addition to
419: * using it as a search term for man(1) or apropos(1).
420: */
421:
422: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
423: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
424: strchr(*argv, '=') : NULL;
425: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
426: }
427:
1.180 schwarze 428: /* man(1), whatis(1), apropos(1) */
429:
430: if (search.argmode != ARG_FILE) {
1.199 schwarze 431: if (search.argmode == ARG_NAME &&
432: outmode == OUTMODE_ONE)
433: search.firstmatch = 1;
1.182 schwarze 434:
435: /* Access the mandoc database. */
436:
1.229 schwarze 437: manconf_parse(&conf, conf_file, defpaths, auxpaths);
438: if ( ! mansearch(&search, &conf.manpath,
439: argc, argv, &res, &sz))
1.180 schwarze 440: usage(search.argmode);
1.213 schwarze 441:
1.305 schwarze 442: if (sz == 0 && search.argmode == ARG_NAME)
1.329 schwarze 443: (void)fs_search(&search, &conf.manpath,
1.305 schwarze 444: argc, argv, &res, &sz);
445:
446: if (search.argmode == ARG_NAME) {
447: for (c = 0; c < argc; c++) {
448: if (strchr(argv[c], '/') == NULL)
449: continue;
450: if (access(argv[c], R_OK) == -1) {
1.329 schwarze 451: mandoc_msg_setinfilename(argv[c]);
452: mandoc_msg(MANDOCERR_BADARG_BAD,
453: 0, 0, "%s", strerror(errno));
454: mandoc_msg_setinfilename(NULL);
1.305 schwarze 455: continue;
456: }
457: res = mandoc_reallocarray(res,
458: sz + 1, sizeof(*res));
459: res[sz].file = mandoc_strdup(argv[c]);
460: res[sz].names = NULL;
461: res[sz].output = NULL;
1.323 schwarze 462: res[sz].bits = 0;
1.305 schwarze 463: res[sz].ipath = SIZE_MAX;
464: res[sz].sec = 10;
465: res[sz].form = FORM_SRC;
466: sz++;
467: }
1.237 schwarze 468: }
1.187 schwarze 469:
470: if (sz == 0) {
1.305 schwarze 471: if (search.argmode != ARG_NAME)
472: warnx("nothing appropriate");
1.312 schwarze 473: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.187 schwarze 474: goto out;
475: }
1.182 schwarze 476:
477: /*
478: * For standard man(1) and -a output mode,
479: * prepare for copying filename pointers
480: * into the program parameter array.
481: */
482:
483: if (outmode == OUTMODE_ONE) {
484: argc = 1;
1.325 schwarze 485: best_prio = 40;
1.186 schwarze 486: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 487: argc = (int)sz;
488:
489: /* Iterate all matching manuals. */
490:
1.213 schwarze 491: resp = res;
1.181 schwarze 492: for (i = 0; i < sz; i++) {
493: if (outmode == OUTMODE_FLN)
494: puts(res[i].file);
1.182 schwarze 495: else if (outmode == OUTMODE_LST)
1.181 schwarze 496: printf("%s - %s\n", res[i].names,
497: res[i].output == NULL ? "" :
498: res[i].output);
1.186 schwarze 499: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 500: /* Search for the best section. */
1.264 schwarze 501: sec = res[i].file;
502: sec += strcspn(sec, "123456789");
503: if (sec[0] == '\0')
1.325 schwarze 504: continue; /* No section at all. */
1.264 schwarze 505: prio = sec_prios[sec[0] - '1'];
1.325 schwarze 506: if (search.sec != NULL) {
507: ssz = strlen(search.sec);
508: if (strncmp(sec, search.sec, ssz) == 0)
509: sec += ssz;
510: } else
511: sec++; /* Prefer without suffix. */
512: if (*sec != '/')
513: prio += 10; /* Wrong dir name. */
514: if (search.sec != NULL &&
515: (strlen(sec) <= ssz + 3 ||
516: strcmp(sec + strlen(sec) - ssz,
517: search.sec) != 0))
518: prio += 20; /* Wrong file ext. */
1.182 schwarze 519: if (prio >= best_prio)
520: continue;
521: best_prio = prio;
1.186 schwarze 522: resp = res + i;
1.182 schwarze 523: }
1.181 schwarze 524: }
1.182 schwarze 525:
526: /*
527: * For man(1), -a and -i output mode, fall through
528: * to the main mandoc(1) code iterating files
529: * and running the parsers on each of them.
530: */
531:
532: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
533: goto out;
1.337 ! schwarze 534: } else {
! 535: sz = argc > 0 ? argc : 1;
! 536: resp = res = mandoc_recallocarray(NULL, 0, sz, sizeof(*res));
! 537: for (i = 0; i < sz; i++) {
! 538: if (argc > 0)
! 539: res[i].file = mandoc_strdup(argv[i]);
! 540: res[i].ipath = SIZE_MAX;
! 541: res[i].form = FORM_SRC;
! 542: }
! 543: if (argc < 1)
! 544: argc = 1;
1.180 schwarze 545: }
546:
547: /* mandoc(1) */
548:
1.255 schwarze 549: #if HAVE_PLEDGE
1.336 schwarze 550: if (outst.use_pager) {
1.329 schwarze 551: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
552: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
553: "%s", strerror(errno));
554: return mandoc_msg_getrc();
555: }
1.260 schwarze 556: } else {
1.329 schwarze 557: if (pledge("stdio rpath", NULL) == -1) {
558: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
559: "%s", strerror(errno));
560: return mandoc_msg_getrc();
561: }
1.260 schwarze 562: }
1.255 schwarze 563: #endif
564:
1.329 schwarze 565: if (search.argmode == ARG_FILE && auxpaths != NULL) {
566: if (strcmp(auxpaths, "doc") == 0)
567: options |= MPARSE_MDOC;
568: else if (strcmp(auxpaths, "an") == 0)
569: options |= MPARSE_MAN;
570: }
1.241 schwarze 571:
1.249 schwarze 572: mchars_alloc();
1.334 schwarze 573: mp = mparse_alloc(options, os_e, os_s);
1.154 kristaps 574:
1.305 schwarze 575: /*
576: * Remember the original working directory, if possible.
577: * This will be needed if some names on the command line
578: * are page names and some are relative file names.
579: * Do not error out if the current directory is not
580: * readable: Maybe it won't be needed after all.
581: */
582: startdir = open(".", O_RDONLY | O_DIRECTORY);
583:
1.337 ! schwarze 584: while (argc-- > 0) {
! 585: process_onefile(mp, resp++, startdir, &outst, &conf);
1.335 schwarze 586: if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 587: break;
1.1 kristaps 588: }
1.305 schwarze 589: if (startdir != -1) {
590: (void)fchdir(startdir);
591: close(startdir);
592: }
1.1 kristaps 593:
1.335 schwarze 594: if (outst.outdata != NULL) {
595: switch (outst.outtype) {
1.252 schwarze 596: case OUTT_HTML:
1.335 schwarze 597: html_free(outst.outdata);
1.252 schwarze 598: break;
599: case OUTT_UTF8:
600: case OUTT_LOCALE:
601: case OUTT_ASCII:
1.335 schwarze 602: ascii_free(outst.outdata);
1.252 schwarze 603: break;
604: case OUTT_PDF:
605: case OUTT_PS:
1.335 schwarze 606: pspdf_free(outst.outdata);
1.252 schwarze 607: break;
608: default:
609: break;
610: }
1.250 schwarze 611: }
1.294 schwarze 612: mandoc_xr_free();
1.334 schwarze 613: mparse_free(mp);
1.249 schwarze 614: mchars_free();
1.182 schwarze 615:
616: out:
1.337 ! schwarze 617: mansearch_free(res, sz);
! 618: if (search.argmode != ARG_FILE)
1.229 schwarze 619: manconf_free(&conf);
1.1 kristaps 620:
1.336 schwarze 621: if (outst.tag_files != NULL) {
1.225 schwarze 622: fclose(stdout);
1.239 schwarze 623: tag_write();
1.336 schwarze 624: run_pager(outst.tag_files);
1.239 schwarze 625: tag_unlink();
1.337 ! schwarze 626: } else if (outst.had_output && outst.outtype != OUTT_LINT)
1.330 schwarze 627: mandoc_msg_summary();
628:
1.312 schwarze 629: return (int)mandoc_msg_getrc();
1.1 kristaps 630: }
631:
1.55 kristaps 632: static void
1.180 schwarze 633: usage(enum argmode argmode)
1.1 kristaps 634: {
1.180 schwarze 635: switch (argmode) {
636: case ARG_FILE:
1.287 schwarze 637: fputs("usage: mandoc [-ac] [-I os=name] "
638: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 639: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 640: break;
641: case ARG_NAME:
1.287 schwarze 642: fputs("usage: man [-acfhklw] [-C file] [-M path] "
643: "[-m path] [-S subsection]\n"
644: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 645: break;
646: case ARG_WORD:
1.287 schwarze 647: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 648: "[-M path] [-m path] [-O outkey] [-S arch]\n"
649: "\t [-s section] name ...\n", stderr);
1.180 schwarze 650: break;
651: case ARG_EXPR:
1.287 schwarze 652: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 653: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 654: "\t [-s section] expression ...\n", stderr);
655: break;
656: }
1.105 kristaps 657: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 658: }
1.213 schwarze 659:
660: static int
661: fs_lookup(const struct manpaths *paths, size_t ipath,
662: const char *sec, const char *arch, const char *name,
663: struct manpage **res, size_t *ressz)
664: {
1.326 schwarze 665: struct stat sb;
1.222 schwarze 666: glob_t globinfo;
1.213 schwarze 667: struct manpage *page;
668: char *file;
1.274 schwarze 669: int globres;
670: enum form form;
1.213 schwarze 671:
1.222 schwarze 672: form = FORM_SRC;
1.213 schwarze 673: mandoc_asprintf(&file, "%s/man%s/%s.%s",
674: paths->paths[ipath], sec, name, sec);
1.326 schwarze 675: if (stat(file, &sb) != -1)
1.213 schwarze 676: goto found;
677: free(file);
678:
679: mandoc_asprintf(&file, "%s/cat%s/%s.0",
680: paths->paths[ipath], sec, name);
1.326 schwarze 681: if (stat(file, &sb) != -1) {
1.213 schwarze 682: form = FORM_CAT;
683: goto found;
684: }
685: free(file);
686:
687: if (arch != NULL) {
688: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
689: paths->paths[ipath], sec, arch, name, sec);
1.326 schwarze 690: if (stat(file, &sb) != -1)
1.213 schwarze 691: goto found;
692: free(file);
693: }
1.222 schwarze 694:
1.240 schwarze 695: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 696: paths->paths[ipath], sec, name);
697: globres = glob(file, 0, NULL, &globinfo);
698: if (globres != 0 && globres != GLOB_NOMATCH)
1.329 schwarze 699: mandoc_msg(MANDOCERR_GLOB, 0, 0,
700: "%s: %s", file, strerror(errno));
1.222 schwarze 701: free(file);
702: if (globres == 0)
703: file = mandoc_strdup(*globinfo.gl_pathv);
704: globfree(&globinfo);
1.326 schwarze 705: if (globres == 0) {
706: if (stat(file, &sb) != -1)
707: goto found;
708: free(file);
709: }
1.296 schwarze 710: if (res != NULL || ipath + 1 != paths->sz)
1.329 schwarze 711: return -1;
1.213 schwarze 712:
1.296 schwarze 713: mandoc_asprintf(&file, "%s.%s", name, sec);
1.326 schwarze 714: globres = stat(file, &sb);
1.296 schwarze 715: free(file);
1.329 schwarze 716: return globres;
1.296 schwarze 717:
1.213 schwarze 718: found:
1.266 schwarze 719: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
720: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 721: if (res == NULL) {
722: free(file);
1.329 schwarze 723: return 0;
1.296 schwarze 724: }
1.329 schwarze 725: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.213 schwarze 726: page = *res + (*ressz - 1);
727: page->file = file;
728: page->names = NULL;
729: page->output = NULL;
1.323 schwarze 730: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 731: page->ipath = ipath;
732: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
733: page->form = form;
1.329 schwarze 734: return 0;
1.213 schwarze 735: }
736:
1.295 schwarze 737: static int
1.213 schwarze 738: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
739: int argc, char **argv, struct manpage **res, size_t *ressz)
740: {
741: const char *const sections[] =
1.264 schwarze 742: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 743: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
744:
745: size_t ipath, isec, lastsz;
746:
747: assert(cfg->argmode == ARG_NAME);
748:
1.295 schwarze 749: if (res != NULL)
750: *res = NULL;
1.213 schwarze 751: *ressz = lastsz = 0;
752: while (argc) {
753: for (ipath = 0; ipath < paths->sz; ipath++) {
754: if (cfg->sec != NULL) {
755: if (fs_lookup(paths, ipath, cfg->sec,
1.329 schwarze 756: cfg->arch, *argv, res, ressz) != -1 &&
1.213 schwarze 757: cfg->firstmatch)
1.329 schwarze 758: return 0;
1.213 schwarze 759: } else for (isec = 0; isec < nsec; isec++)
760: if (fs_lookup(paths, ipath, sections[isec],
1.329 schwarze 761: cfg->arch, *argv, res, ressz) != -1 &&
1.213 schwarze 762: cfg->firstmatch)
1.329 schwarze 763: return 0;
1.213 schwarze 764: }
1.305 schwarze 765: if (res != NULL && *ressz == lastsz &&
1.307 schwarze 766: strchr(*argv, '/') == NULL) {
1.320 schwarze 767: if (cfg->arch != NULL &&
768: arch_valid(cfg->arch, OSENUM) == 0)
769: warnx("Unknown architecture \"%s\".",
770: cfg->arch);
771: else if (cfg->sec == NULL)
1.307 schwarze 772: warnx("No entry for %s in the manual.",
773: *argv);
774: else
775: warnx("No entry for %s in section %s "
776: "of the manual.", *argv, cfg->sec);
777: }
1.213 schwarze 778: lastsz = *ressz;
779: argv++;
780: argc--;
781: }
1.329 schwarze 782: return -1;
1.213 schwarze 783: }
1.68 joerg 784:
1.64 kristaps 785: static void
1.337 ! schwarze 786: process_onefile(struct mparse *mp, struct manpage *resp, int startdir,
! 787: struct outstate *outst, struct manconf *conf)
! 788: {
! 789: int fd;
! 790:
! 791: /*
! 792: * Changing directories is not needed in ARG_FILE mode.
! 793: * Do it on a best-effort basis. Even in case of
! 794: * failure, some functionality may still work.
! 795: */
! 796: if (resp->ipath != SIZE_MAX)
! 797: (void)chdir(conf->manpath.paths[resp->ipath]);
! 798: else if (startdir != -1)
! 799: (void)fchdir(startdir);
! 800:
! 801: mandoc_msg_setinfilename(resp->file);
! 802: if (resp->file != NULL) {
! 803: if ((fd = mparse_open(mp, resp->file)) == -1) {
! 804: mandoc_msg(resp->ipath == SIZE_MAX ?
! 805: MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
! 806: 0, 0, "%s", strerror(errno));
! 807: mandoc_msg_setinfilename(NULL);
! 808: return;
! 809: }
! 810: } else
! 811: fd = STDIN_FILENO;
! 812:
! 813: if (outst->use_pager) {
! 814: outst->use_pager = 0;
! 815: outst->tag_files = tag_init(conf->output.tag);
! 816: }
! 817:
! 818: if (outst->had_output && outst->outtype <= OUTT_UTF8) {
! 819: if (outst->outdata == NULL)
! 820: outdata_alloc(outst, &conf->output);
! 821: terminal_sepline(outst->outdata);
! 822: }
! 823:
! 824: if (resp->form == FORM_SRC)
! 825: parse(mp, fd, resp->file, outst, &conf->output);
! 826: else {
! 827: passthrough(fd, conf->output.synopsisonly);
! 828: outst->had_output = 1;
! 829: }
! 830:
! 831: if (ferror(stdout)) {
! 832: if (outst->tag_files != NULL) {
! 833: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
! 834: outst->tag_files->ofn, strerror(errno));
! 835: tag_unlink();
! 836: outst->tag_files = NULL;
! 837: } else
! 838: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
! 839: strerror(errno));
! 840: }
! 841: mandoc_msg_setinfilename(NULL);
! 842: }
! 843:
! 844: static void
1.335 schwarze 845: parse(struct mparse *mp, int fd, const char *file,
846: struct outstate *outst, struct manoutput *outconf)
1.1 kristaps 847: {
1.337 ! schwarze 848: static int previous;
! 849: struct roff_meta *meta;
1.112 kristaps 850:
1.337 ! schwarze 851: assert(fd >= 0);
! 852: if (file == NULL)
! 853: file = "<stdin>";
1.112 kristaps 854:
1.337 ! schwarze 855: if (previous)
! 856: mparse_reset(mp);
! 857: else
! 858: previous = 1;
1.112 kristaps 859:
1.334 schwarze 860: mparse_readfd(mp, fd, file);
1.261 schwarze 861: if (fd != STDIN_FILENO)
862: close(fd);
1.112 kristaps 863:
1.1 kristaps 864: /*
1.154 kristaps 865: * With -Wstop and warnings or errors of at least the requested
866: * level, do not produce output.
1.1 kristaps 867: */
868:
1.335 schwarze 869: if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 870: return;
1.111 kristaps 871:
1.335 schwarze 872: if (outst->outdata == NULL)
873: outdata_alloc(outst, outconf);
874: else if (outst->outtype == OUTT_HTML)
875: html_reset(outst);
1.111 kristaps 876:
1.315 schwarze 877: mandoc_xr_reset();
1.334 schwarze 878: meta = mparse_result(mp);
1.250 schwarze 879:
880: /* Execute the out device, if it exists. */
881:
1.337 ! schwarze 882: outst->had_output = 1;
1.315 schwarze 883: if (meta->macroset == MACROSET_MDOC) {
1.335 schwarze 884: switch (outst->outtype) {
1.173 schwarze 885: case OUTT_HTML:
1.335 schwarze 886: html_mdoc(outst->outdata, meta);
1.111 kristaps 887: break;
1.173 schwarze 888: case OUTT_TREE:
1.335 schwarze 889: tree_mdoc(outst->outdata, meta);
1.111 kristaps 890: break;
1.173 schwarze 891: case OUTT_MAN:
1.335 schwarze 892: man_mdoc(outst->outdata, meta);
1.164 schwarze 893: break;
1.173 schwarze 894: case OUTT_PDF:
895: case OUTT_ASCII:
896: case OUTT_UTF8:
897: case OUTT_LOCALE:
898: case OUTT_PS:
1.335 schwarze 899: terminal_mdoc(outst->outdata, meta);
1.250 schwarze 900: break;
1.285 schwarze 901: case OUTT_MARKDOWN:
1.335 schwarze 902: markdown_mdoc(outst->outdata, meta);
1.285 schwarze 903: break;
1.250 schwarze 904: default:
905: break;
906: }
907: }
1.315 schwarze 908: if (meta->macroset == MACROSET_MAN) {
1.335 schwarze 909: switch (outst->outtype) {
1.250 schwarze 910: case OUTT_HTML:
1.335 schwarze 911: html_man(outst->outdata, meta);
1.250 schwarze 912: break;
913: case OUTT_TREE:
1.335 schwarze 914: tree_man(outst->outdata, meta);
1.250 schwarze 915: break;
916: case OUTT_MAN:
1.334 schwarze 917: mparse_copy(mp);
1.250 schwarze 918: break;
919: case OUTT_PDF:
920: case OUTT_ASCII:
921: case OUTT_UTF8:
922: case OUTT_LOCALE:
923: case OUTT_PS:
1.335 schwarze 924: terminal_man(outst->outdata, meta);
1.111 kristaps 925: break;
926: default:
927: break;
928: }
1.276 schwarze 929: }
1.312 schwarze 930: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
931: check_xr();
1.294 schwarze 932: }
933:
934: static void
1.312 schwarze 935: check_xr(void)
1.294 schwarze 936: {
937: static struct manpaths paths;
938: struct mansearch search;
939: struct mandoc_xr *xr;
940: size_t sz;
941:
942: if (paths.sz == 0)
943: manpath_base(&paths);
944:
945: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 946: if (xr->line == -1)
947: continue;
1.294 schwarze 948: search.arch = NULL;
949: search.sec = xr->sec;
950: search.outkey = NULL;
951: search.argmode = ARG_NAME;
952: search.firstmatch = 1;
953: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 954: continue;
1.329 schwarze 955: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz) != -1)
1.294 schwarze 956: continue;
1.298 schwarze 957: if (xr->count == 1)
1.313 schwarze 958: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
959: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 960: else
1.313 schwarze 961: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
962: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 963: xr->name, xr->sec, xr->count);
1.294 schwarze 964: }
1.276 schwarze 965: }
966:
967: static void
1.335 schwarze 968: outdata_alloc(struct outstate *outst, struct manoutput *outconf)
1.276 schwarze 969: {
1.335 schwarze 970: switch (outst->outtype) {
1.276 schwarze 971: case OUTT_HTML:
1.335 schwarze 972: outst->outdata = html_alloc(outconf);
1.276 schwarze 973: break;
974: case OUTT_UTF8:
1.335 schwarze 975: outst->outdata = utf8_alloc(outconf);
1.276 schwarze 976: break;
977: case OUTT_LOCALE:
1.335 schwarze 978: outst->outdata = locale_alloc(outconf);
1.276 schwarze 979: break;
980: case OUTT_ASCII:
1.335 schwarze 981: outst->outdata = ascii_alloc(outconf);
1.276 schwarze 982: break;
983: case OUTT_PDF:
1.335 schwarze 984: outst->outdata = pdf_alloc(outconf);
1.276 schwarze 985: break;
986: case OUTT_PS:
1.335 schwarze 987: outst->outdata = ps_alloc(outconf);
1.276 schwarze 988: break;
989: default:
990: break;
1.111 kristaps 991: }
1.186 schwarze 992: }
993:
1.227 schwarze 994: static void
1.329 schwarze 995: passthrough(int fd, int synopsis_only)
1.186 schwarze 996: {
1.197 schwarze 997: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
998: const char synr[] = "SYNOPSIS";
999:
1000: FILE *stream;
1.257 schwarze 1001: char *line, *cp;
1002: size_t linesz;
1.277 schwarze 1003: ssize_t len, written;
1.329 schwarze 1004: int lno, print;
1.210 schwarze 1005:
1.329 schwarze 1006: stream = NULL;
1.257 schwarze 1007: line = NULL;
1008: linesz = 0;
1.197 schwarze 1009:
1.277 schwarze 1010: if (fflush(stdout) == EOF) {
1.329 schwarze 1011: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
1012: goto done;
1.277 schwarze 1013: }
1.197 schwarze 1014: if ((stream = fdopen(fd, "r")) == NULL) {
1015: close(fd);
1.329 schwarze 1016: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
1017: goto done;
1.197 schwarze 1018: }
1.186 schwarze 1019:
1.329 schwarze 1020: lno = print = 0;
1.277 schwarze 1021: while ((len = getline(&line, &linesz, stream)) != -1) {
1.329 schwarze 1022: lno++;
1.257 schwarze 1023: cp = line;
1.197 schwarze 1024: if (synopsis_only) {
1025: if (print) {
1.257 schwarze 1026: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 1027: goto done;
1.277 schwarze 1028: while (isspace((unsigned char)*cp)) {
1.257 schwarze 1029: cp++;
1.277 schwarze 1030: len--;
1031: }
1.197 schwarze 1032: } else {
1.257 schwarze 1033: if (strcmp(cp, synb) == 0 ||
1034: strcmp(cp, synr) == 0)
1.197 schwarze 1035: print = 1;
1036: continue;
1037: }
1038: }
1.277 schwarze 1039: for (; len > 0; len -= written) {
1.329 schwarze 1040: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1041: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1042: "%s", strerror(errno));
1043: goto done;
1044: }
1.257 schwarze 1045: }
1.197 schwarze 1046: }
1.329 schwarze 1047: if (ferror(stream))
1048: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.193 schwarze 1049:
1.197 schwarze 1050: done:
1.257 schwarze 1051: free(line);
1.329 schwarze 1052: if (stream != NULL)
1053: fclose(stream);
1.1 kristaps 1054: }
1055:
1056: static int
1.334 schwarze 1057: woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1.1 kristaps 1058: {
1.34 kristaps 1059: char *v, *o;
1.293 schwarze 1060: const char *toks[11];
1.1 kristaps 1061:
1.103 schwarze 1062: toks[0] = "stop";
1063: toks[1] = "all";
1.293 schwarze 1064: toks[2] = "base";
1065: toks[3] = "style";
1066: toks[4] = "warning";
1067: toks[5] = "error";
1068: toks[6] = "unsupp";
1069: toks[7] = "fatal";
1070: toks[8] = "openbsd";
1071: toks[9] = "netbsd";
1072: toks[10] = NULL;
1.1 kristaps 1073:
1.34 kristaps 1074: while (*arg) {
1075: o = arg;
1.272 schwarze 1076: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1077: case 0:
1.334 schwarze 1078: *wstop = 1;
1.1 kristaps 1079: break;
1.173 schwarze 1080: case 1:
1081: case 2:
1.312 schwarze 1082: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1083: break;
1084: case 3:
1.312 schwarze 1085: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1086: break;
1.290 schwarze 1087: case 4:
1.312 schwarze 1088: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1089: break;
1.290 schwarze 1090: case 5:
1.312 schwarze 1091: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1092: break;
1.290 schwarze 1093: case 6:
1.312 schwarze 1094: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1095: break;
1096: case 7:
1.329 schwarze 1097: mandoc_msg_setmin(MANDOCERR_BADARG);
1.293 schwarze 1098: break;
1099: case 8:
1.312 schwarze 1100: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1101: *os_e = MANDOC_OS_OPENBSD;
1.293 schwarze 1102: break;
1103: case 9:
1.312 schwarze 1104: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1105: *os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1106: break;
1.1 kristaps 1107: default:
1.329 schwarze 1108: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1109: return -1;
1.1 kristaps 1110: }
1.34 kristaps 1111: }
1.329 schwarze 1112: return 0;
1.333 schwarze 1113: }
1114:
1115: /*
1116: * Wait until moved to the foreground,
1117: * then fork the pager and wait for the user to close it.
1118: */
1119: static void
1120: run_pager(struct tag_files *tag_files)
1121: {
1122: int signum, status;
1123: pid_t man_pgid, tc_pgid;
1124: pid_t pager_pid, wait_pid;
1125:
1126: man_pgid = getpgid(0);
1127: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
1128: man_pgid;
1129: pager_pid = 0;
1130: signum = SIGSTOP;
1131:
1132: for (;;) {
1133: /* Stop here until moved to the foreground. */
1134:
1135: tc_pgid = tcgetpgrp(tag_files->ofd);
1136: if (tc_pgid != man_pgid) {
1137: if (tc_pgid == pager_pid) {
1138: (void)tcsetpgrp(tag_files->ofd, man_pgid);
1139: if (signum == SIGTTIN)
1140: continue;
1141: } else
1142: tag_files->tcpgid = tc_pgid;
1143: kill(0, signum);
1144: continue;
1145: }
1146:
1147: /* Once in the foreground, activate the pager. */
1148:
1149: if (pager_pid) {
1150: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1151: kill(pager_pid, SIGCONT);
1152: } else
1153: pager_pid = spawn_pager(tag_files);
1154:
1155: /* Wait for the pager to stop or exit. */
1156:
1157: while ((wait_pid = waitpid(pager_pid, &status,
1158: WUNTRACED)) == -1 && errno == EINTR)
1159: continue;
1160:
1161: if (wait_pid == -1) {
1162: mandoc_msg(MANDOCERR_WAIT, 0, 0,
1163: "%s", strerror(errno));
1164: break;
1165: }
1166: if (!WIFSTOPPED(status))
1167: break;
1168:
1169: signum = WSTOPSIG(status);
1170: }
1.183 schwarze 1171: }
1172:
1.225 schwarze 1173: static pid_t
1.244 schwarze 1174: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1175: {
1.265 schwarze 1176: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1177: #define MAX_PAGER_ARGS 16
1178: char *argv[MAX_PAGER_ARGS];
1179: const char *pager;
1180: char *cp;
1.322 schwarze 1181: #if HAVE_LESS_T
1.239 schwarze 1182: size_t cmdlen;
1.322 schwarze 1183: #endif
1.309 schwarze 1184: int argc, use_ofn;
1.225 schwarze 1185: pid_t pager_pid;
1.183 schwarze 1186:
1.239 schwarze 1187: pager = getenv("MANPAGER");
1188: if (pager == NULL || *pager == '\0')
1189: pager = getenv("PAGER");
1190: if (pager == NULL || *pager == '\0')
1191: pager = "more -s";
1192: cp = mandoc_strdup(pager);
1193:
1194: /*
1195: * Parse the pager command into words.
1196: * Intentionally do not do anything fancy here.
1197: */
1198:
1199: argc = 0;
1.309 schwarze 1200: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1201: argv[argc++] = cp;
1202: cp = strchr(cp, ' ');
1203: if (cp == NULL)
1204: break;
1205: *cp++ = '\0';
1206: while (*cp == ' ')
1207: cp++;
1208: if (*cp == '\0')
1209: break;
1210: }
1211:
1.268 schwarze 1212: /* For less(1), use the tag file. */
1.239 schwarze 1213:
1.309 schwarze 1214: use_ofn = 1;
1.322 schwarze 1215: #if HAVE_LESS_T
1.332 schwarze 1216: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1217: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1218: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1219: argv[argc++] = mandoc_strdup("-T");
1220: argv[argc++] = tag_files->tfn;
1.309 schwarze 1221: if (tag_files->tagname != NULL) {
1222: argv[argc++] = mandoc_strdup("-t");
1223: argv[argc++] = tag_files->tagname;
1224: use_ofn = 0;
1225: }
1.244 schwarze 1226: }
1.239 schwarze 1227: }
1.322 schwarze 1228: #endif
1.309 schwarze 1229: if (use_ofn)
1230: argv[argc++] = tag_files->ofn;
1.239 schwarze 1231: argv[argc] = NULL;
1232:
1.225 schwarze 1233: switch (pager_pid = fork()) {
1.183 schwarze 1234: case -1:
1.329 schwarze 1235: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1236: exit(mandoc_msg_getrc());
1.183 schwarze 1237: case 0:
1.224 schwarze 1238: break;
1239: default:
1.258 schwarze 1240: (void)setpgid(pager_pid, 0);
1.279 schwarze 1241: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1242: #if HAVE_PLEDGE
1.329 schwarze 1243: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1244: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1245: "%s", strerror(errno));
1246: exit(mandoc_msg_getrc());
1247: }
1.255 schwarze 1248: #endif
1.259 schwarze 1249: tag_files->pager_pid = pager_pid;
1.245 schwarze 1250: return pager_pid;
1.184 schwarze 1251: }
1252:
1.224 schwarze 1253: /* The child process becomes the pager. */
1.184 schwarze 1254:
1.329 schwarze 1255: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1256: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1257: _exit(mandoc_msg_getrc());
1258: }
1.244 schwarze 1259: close(tag_files->ofd);
1.303 schwarze 1260: assert(tag_files->tfd == -1);
1.265 schwarze 1261:
1262: /* Do not start the pager before controlling the terminal. */
1263:
1.279 schwarze 1264: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1265: nanosleep(&timeout, NULL);
1266:
1.184 schwarze 1267: execvp(argv[0], argv);
1.329 schwarze 1268: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1269: _exit(mandoc_msg_getrc());
1.71 kristaps 1270: }
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