Annotation of mandoc/main.c, Revision 1.342
1.342 ! schwarze 1: /* $Id: main.c,v 1.341 2020/01/20 10:37:15 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) {
451: if (argc < 1)
452: usage(ARG_NAME);
453: for (res = NULL, ressz = 0; argc > 0; argc--, argv++) {
454: (void)mansearch(&search, &conf.manpath,
455: 1, argv, &resn, &resnsz);
456: if (resnsz == 0)
457: (void)fs_search(&search, &conf.manpath,
1.340 schwarze 458: *argv, &resn, &resnsz);
459: if (resnsz == 0 && strchr(*argv, '/') == NULL) {
460: if (search.arch != NULL &&
461: arch_valid(search.arch, OSENUM) == 0)
462: warnx("Unknown architecture \"%s\".",
463: search.arch);
464: else if (search.sec != NULL)
465: warnx("No entry for %s in "
466: "section %s of the manual.",
467: *argv, search.sec);
468: else
469: warnx("No entry for %s in "
470: "the manual.", *argv);
471: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
472: continue;
473: }
1.338 schwarze 474: if (resnsz == 0) {
475: if (access(*argv, R_OK) == -1) {
476: mandoc_msg_setinfilename(*argv);
1.329 schwarze 477: mandoc_msg(MANDOCERR_BADARG_BAD,
478: 0, 0, "%s", strerror(errno));
479: mandoc_msg_setinfilename(NULL);
1.305 schwarze 480: continue;
481: }
1.338 schwarze 482: resnsz = 1;
483: resn = mandoc_calloc(resnsz, sizeof(*res));
484: resn->file = mandoc_strdup(*argv);
485: resn->ipath = SIZE_MAX;
486: resn->form = FORM_SRC;
487: }
488: if (outmode != OUTMODE_ONE || resnsz == 1) {
1.305 schwarze 489: res = mandoc_reallocarray(res,
1.338 schwarze 490: ressz + resnsz, sizeof(*res));
491: memcpy(res + ressz, resn,
492: sizeof(*resn) * resnsz);
493: ressz += resnsz;
494: continue;
1.305 schwarze 495: }
1.187 schwarze 496:
1.338 schwarze 497: /* Search for the best section. */
1.182 schwarze 498:
1.325 schwarze 499: best_prio = 40;
1.338 schwarze 500: for (ib = i = 0; i < resnsz; i++) {
501: sec = resn[i].file;
1.264 schwarze 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;
1.338 schwarze 522: ib = i;
1.182 schwarze 523: }
1.338 schwarze 524: res = mandoc_reallocarray(res, ressz + 1,
525: sizeof(*res));
526: memcpy(res + ressz++, resn + ib, sizeof(*resn));
1.181 schwarze 527: }
1.182 schwarze 528:
1.338 schwarze 529: /* apropos(1), whatis(1): Process the full search expression. */
530:
531: } else if (search.argmode != ARG_FILE) {
532: if (mansearch(&search, &conf.manpath,
533: argc, argv, &res, &ressz) == 0)
534: usage(search.argmode);
1.182 schwarze 535:
1.338 schwarze 536: if (ressz == 0) {
537: warnx("nothing appropriate");
538: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.182 schwarze 539: goto out;
1.338 schwarze 540: }
541:
542: /* mandoc(1): Take command line arguments as file names. */
543:
1.337 schwarze 544: } else {
1.338 schwarze 545: ressz = argc > 0 ? argc : 1;
546: res = mandoc_calloc(ressz, sizeof(*res));
547: for (i = 0; i < ressz; i++) {
1.337 schwarze 548: if (argc > 0)
549: res[i].file = mandoc_strdup(argv[i]);
550: res[i].ipath = SIZE_MAX;
551: res[i].form = FORM_SRC;
552: }
1.180 schwarze 553: }
554:
1.338 schwarze 555: switch (outmode) {
556: case OUTMODE_FLN:
557: for (i = 0; i < ressz; i++)
558: puts(res[i].file);
559: goto out;
560: case OUTMODE_LST:
561: for (i = 0; i < ressz; i++)
562: printf("%s - %s\n", res[i].names,
563: res[i].output == NULL ? "" :
564: res[i].output);
565: goto out;
566: default:
567: break;
568: }
1.255 schwarze 569:
1.329 schwarze 570: if (search.argmode == ARG_FILE && auxpaths != NULL) {
571: if (strcmp(auxpaths, "doc") == 0)
572: options |= MPARSE_MDOC;
573: else if (strcmp(auxpaths, "an") == 0)
574: options |= MPARSE_MAN;
575: }
1.241 schwarze 576:
1.249 schwarze 577: mchars_alloc();
1.334 schwarze 578: mp = mparse_alloc(options, os_e, os_s);
1.154 kristaps 579:
1.305 schwarze 580: /*
581: * Remember the original working directory, if possible.
582: * This will be needed if some names on the command line
583: * are page names and some are relative file names.
584: * Do not error out if the current directory is not
585: * readable: Maybe it won't be needed after all.
586: */
587: startdir = open(".", O_RDONLY | O_DIRECTORY);
588:
1.338 schwarze 589: for (i = 0; i < ressz; i++) {
590: process_onefile(mp, res + i, startdir, &outst, &conf);
1.335 schwarze 591: if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 592: break;
1.1 kristaps 593: }
1.305 schwarze 594: if (startdir != -1) {
595: (void)fchdir(startdir);
596: close(startdir);
597: }
1.1 kristaps 598:
1.335 schwarze 599: if (outst.outdata != NULL) {
600: switch (outst.outtype) {
1.252 schwarze 601: case OUTT_HTML:
1.335 schwarze 602: html_free(outst.outdata);
1.252 schwarze 603: break;
604: case OUTT_UTF8:
605: case OUTT_LOCALE:
606: case OUTT_ASCII:
1.335 schwarze 607: ascii_free(outst.outdata);
1.252 schwarze 608: break;
609: case OUTT_PDF:
610: case OUTT_PS:
1.335 schwarze 611: pspdf_free(outst.outdata);
1.252 schwarze 612: break;
613: default:
614: break;
615: }
1.250 schwarze 616: }
1.294 schwarze 617: mandoc_xr_free();
1.334 schwarze 618: mparse_free(mp);
1.249 schwarze 619: mchars_free();
1.182 schwarze 620:
621: out:
1.338 schwarze 622: mansearch_free(res, ressz);
1.337 schwarze 623: if (search.argmode != ARG_FILE)
1.229 schwarze 624: manconf_free(&conf);
1.1 kristaps 625:
1.336 schwarze 626: if (outst.tag_files != NULL) {
1.225 schwarze 627: fclose(stdout);
1.239 schwarze 628: tag_write();
1.336 schwarze 629: run_pager(outst.tag_files);
1.239 schwarze 630: tag_unlink();
1.337 schwarze 631: } else if (outst.had_output && outst.outtype != OUTT_LINT)
1.330 schwarze 632: mandoc_msg_summary();
633:
1.312 schwarze 634: return (int)mandoc_msg_getrc();
1.1 kristaps 635: }
636:
1.55 kristaps 637: static void
1.180 schwarze 638: usage(enum argmode argmode)
1.1 kristaps 639: {
1.180 schwarze 640: switch (argmode) {
641: case ARG_FILE:
1.287 schwarze 642: fputs("usage: mandoc [-ac] [-I os=name] "
643: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 644: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 645: break;
646: case ARG_NAME:
1.287 schwarze 647: fputs("usage: man [-acfhklw] [-C file] [-M path] "
648: "[-m path] [-S subsection]\n"
649: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 650: break;
651: case ARG_WORD:
1.287 schwarze 652: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 653: "[-M path] [-m path] [-O outkey] [-S arch]\n"
654: "\t [-s section] name ...\n", stderr);
1.180 schwarze 655: break;
656: case ARG_EXPR:
1.287 schwarze 657: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 658: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 659: "\t [-s section] expression ...\n", stderr);
660: break;
661: }
1.105 kristaps 662: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 663: }
1.213 schwarze 664:
665: static int
666: fs_lookup(const struct manpaths *paths, size_t ipath,
667: const char *sec, const char *arch, const char *name,
668: struct manpage **res, size_t *ressz)
669: {
1.326 schwarze 670: struct stat sb;
1.222 schwarze 671: glob_t globinfo;
1.213 schwarze 672: struct manpage *page;
673: char *file;
1.274 schwarze 674: int globres;
675: enum form form;
1.213 schwarze 676:
1.222 schwarze 677: form = FORM_SRC;
1.213 schwarze 678: mandoc_asprintf(&file, "%s/man%s/%s.%s",
679: paths->paths[ipath], sec, name, sec);
1.326 schwarze 680: if (stat(file, &sb) != -1)
1.213 schwarze 681: goto found;
682: free(file);
683:
684: mandoc_asprintf(&file, "%s/cat%s/%s.0",
685: paths->paths[ipath], sec, name);
1.326 schwarze 686: if (stat(file, &sb) != -1) {
1.213 schwarze 687: form = FORM_CAT;
688: goto found;
689: }
690: free(file);
691:
692: if (arch != NULL) {
693: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
694: paths->paths[ipath], sec, arch, name, sec);
1.326 schwarze 695: if (stat(file, &sb) != -1)
1.213 schwarze 696: goto found;
697: free(file);
698: }
1.222 schwarze 699:
1.240 schwarze 700: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 701: paths->paths[ipath], sec, name);
702: globres = glob(file, 0, NULL, &globinfo);
703: if (globres != 0 && globres != GLOB_NOMATCH)
1.329 schwarze 704: mandoc_msg(MANDOCERR_GLOB, 0, 0,
705: "%s: %s", file, strerror(errno));
1.222 schwarze 706: free(file);
707: if (globres == 0)
708: file = mandoc_strdup(*globinfo.gl_pathv);
709: globfree(&globinfo);
1.326 schwarze 710: if (globres == 0) {
711: if (stat(file, &sb) != -1)
712: goto found;
713: free(file);
714: }
1.296 schwarze 715: if (res != NULL || ipath + 1 != paths->sz)
1.329 schwarze 716: return -1;
1.213 schwarze 717:
1.296 schwarze 718: mandoc_asprintf(&file, "%s.%s", name, sec);
1.326 schwarze 719: globres = stat(file, &sb);
1.296 schwarze 720: free(file);
1.329 schwarze 721: return globres;
1.296 schwarze 722:
1.213 schwarze 723: found:
1.266 schwarze 724: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
725: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 726: if (res == NULL) {
727: free(file);
1.329 schwarze 728: return 0;
1.296 schwarze 729: }
1.329 schwarze 730: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.213 schwarze 731: page = *res + (*ressz - 1);
732: page->file = file;
733: page->names = NULL;
734: page->output = NULL;
1.323 schwarze 735: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 736: page->ipath = ipath;
737: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
738: page->form = form;
1.329 schwarze 739: return 0;
1.213 schwarze 740: }
741:
1.295 schwarze 742: static int
1.213 schwarze 743: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
1.340 schwarze 744: const char *name, struct manpage **res, size_t *ressz)
1.213 schwarze 745: {
746: const char *const sections[] =
1.264 schwarze 747: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 748: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
749:
1.340 schwarze 750: size_t ipath, isec;
1.213 schwarze 751:
752: assert(cfg->argmode == ARG_NAME);
1.295 schwarze 753: if (res != NULL)
754: *res = NULL;
1.340 schwarze 755: *ressz = 0;
756: for (ipath = 0; ipath < paths->sz; ipath++) {
757: if (cfg->sec != NULL) {
758: if (fs_lookup(paths, ipath, cfg->sec, cfg->arch,
759: name, res, ressz) != -1 && cfg->firstmatch)
760: return 0;
761: } else {
762: for (isec = 0; isec < nsec; isec++)
1.213 schwarze 763: if (fs_lookup(paths, ipath, sections[isec],
1.340 schwarze 764: cfg->arch, name, res, ressz) != -1 &&
1.213 schwarze 765: cfg->firstmatch)
1.329 schwarze 766: return 0;
1.213 schwarze 767: }
768: }
1.329 schwarze 769: return -1;
1.213 schwarze 770: }
1.68 joerg 771:
1.64 kristaps 772: static void
1.337 schwarze 773: process_onefile(struct mparse *mp, struct manpage *resp, int startdir,
774: struct outstate *outst, struct manconf *conf)
775: {
776: int fd;
777:
778: /*
779: * Changing directories is not needed in ARG_FILE mode.
780: * Do it on a best-effort basis. Even in case of
781: * failure, some functionality may still work.
782: */
783: if (resp->ipath != SIZE_MAX)
784: (void)chdir(conf->manpath.paths[resp->ipath]);
785: else if (startdir != -1)
786: (void)fchdir(startdir);
787:
788: mandoc_msg_setinfilename(resp->file);
789: if (resp->file != NULL) {
790: if ((fd = mparse_open(mp, resp->file)) == -1) {
791: mandoc_msg(resp->ipath == SIZE_MAX ?
792: MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
793: 0, 0, "%s", strerror(errno));
794: mandoc_msg_setinfilename(NULL);
795: return;
796: }
797: } else
798: fd = STDIN_FILENO;
799:
800: if (outst->use_pager) {
801: outst->use_pager = 0;
802: outst->tag_files = tag_init(conf->output.tag);
803: }
804:
805: if (outst->had_output && outst->outtype <= OUTT_UTF8) {
806: if (outst->outdata == NULL)
807: outdata_alloc(outst, &conf->output);
808: terminal_sepline(outst->outdata);
809: }
810:
811: if (resp->form == FORM_SRC)
812: parse(mp, fd, resp->file, outst, &conf->output);
813: else {
814: passthrough(fd, conf->output.synopsisonly);
815: outst->had_output = 1;
816: }
817:
818: if (ferror(stdout)) {
819: if (outst->tag_files != NULL) {
820: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
821: outst->tag_files->ofn, strerror(errno));
822: tag_unlink();
823: outst->tag_files = NULL;
824: } else
825: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
826: strerror(errno));
827: }
828: mandoc_msg_setinfilename(NULL);
829: }
830:
831: static void
1.335 schwarze 832: parse(struct mparse *mp, int fd, const char *file,
833: struct outstate *outst, struct manoutput *outconf)
1.1 kristaps 834: {
1.337 schwarze 835: static int previous;
836: struct roff_meta *meta;
1.112 kristaps 837:
1.337 schwarze 838: assert(fd >= 0);
839: if (file == NULL)
840: file = "<stdin>";
1.112 kristaps 841:
1.337 schwarze 842: if (previous)
843: mparse_reset(mp);
844: else
845: previous = 1;
1.112 kristaps 846:
1.334 schwarze 847: mparse_readfd(mp, fd, file);
1.261 schwarze 848: if (fd != STDIN_FILENO)
849: close(fd);
1.112 kristaps 850:
1.1 kristaps 851: /*
1.154 kristaps 852: * With -Wstop and warnings or errors of at least the requested
853: * level, do not produce output.
1.1 kristaps 854: */
855:
1.335 schwarze 856: if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 857: return;
1.111 kristaps 858:
1.335 schwarze 859: if (outst->outdata == NULL)
860: outdata_alloc(outst, outconf);
861: else if (outst->outtype == OUTT_HTML)
862: html_reset(outst);
1.111 kristaps 863:
1.315 schwarze 864: mandoc_xr_reset();
1.334 schwarze 865: meta = mparse_result(mp);
1.250 schwarze 866:
867: /* Execute the out device, if it exists. */
868:
1.337 schwarze 869: outst->had_output = 1;
1.315 schwarze 870: if (meta->macroset == MACROSET_MDOC) {
1.335 schwarze 871: switch (outst->outtype) {
1.173 schwarze 872: case OUTT_HTML:
1.335 schwarze 873: html_mdoc(outst->outdata, meta);
1.111 kristaps 874: break;
1.173 schwarze 875: case OUTT_TREE:
1.335 schwarze 876: tree_mdoc(outst->outdata, meta);
1.111 kristaps 877: break;
1.173 schwarze 878: case OUTT_MAN:
1.335 schwarze 879: man_mdoc(outst->outdata, meta);
1.164 schwarze 880: break;
1.173 schwarze 881: case OUTT_PDF:
882: case OUTT_ASCII:
883: case OUTT_UTF8:
884: case OUTT_LOCALE:
885: case OUTT_PS:
1.335 schwarze 886: terminal_mdoc(outst->outdata, meta);
1.250 schwarze 887: break;
1.285 schwarze 888: case OUTT_MARKDOWN:
1.335 schwarze 889: markdown_mdoc(outst->outdata, meta);
1.285 schwarze 890: break;
1.250 schwarze 891: default:
892: break;
893: }
894: }
1.315 schwarze 895: if (meta->macroset == MACROSET_MAN) {
1.335 schwarze 896: switch (outst->outtype) {
1.250 schwarze 897: case OUTT_HTML:
1.335 schwarze 898: html_man(outst->outdata, meta);
1.250 schwarze 899: break;
900: case OUTT_TREE:
1.335 schwarze 901: tree_man(outst->outdata, meta);
1.250 schwarze 902: break;
903: case OUTT_MAN:
1.334 schwarze 904: mparse_copy(mp);
1.250 schwarze 905: break;
906: case OUTT_PDF:
907: case OUTT_ASCII:
908: case OUTT_UTF8:
909: case OUTT_LOCALE:
910: case OUTT_PS:
1.335 schwarze 911: terminal_man(outst->outdata, meta);
1.111 kristaps 912: break;
913: default:
914: break;
915: }
1.276 schwarze 916: }
1.312 schwarze 917: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
918: check_xr();
1.294 schwarze 919: }
920:
921: static void
1.312 schwarze 922: check_xr(void)
1.294 schwarze 923: {
924: static struct manpaths paths;
925: struct mansearch search;
926: struct mandoc_xr *xr;
927: size_t sz;
928:
929: if (paths.sz == 0)
930: manpath_base(&paths);
931:
932: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 933: if (xr->line == -1)
934: continue;
1.294 schwarze 935: search.arch = NULL;
936: search.sec = xr->sec;
937: search.outkey = NULL;
938: search.argmode = ARG_NAME;
939: search.firstmatch = 1;
940: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 941: continue;
1.340 schwarze 942: if (fs_search(&search, &paths, xr->name, NULL, &sz) != -1)
1.294 schwarze 943: continue;
1.298 schwarze 944: if (xr->count == 1)
1.313 schwarze 945: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
946: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 947: else
1.313 schwarze 948: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
949: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 950: xr->name, xr->sec, xr->count);
1.294 schwarze 951: }
1.276 schwarze 952: }
953:
954: static void
1.335 schwarze 955: outdata_alloc(struct outstate *outst, struct manoutput *outconf)
1.276 schwarze 956: {
1.335 schwarze 957: switch (outst->outtype) {
1.276 schwarze 958: case OUTT_HTML:
1.335 schwarze 959: outst->outdata = html_alloc(outconf);
1.276 schwarze 960: break;
961: case OUTT_UTF8:
1.335 schwarze 962: outst->outdata = utf8_alloc(outconf);
1.276 schwarze 963: break;
964: case OUTT_LOCALE:
1.335 schwarze 965: outst->outdata = locale_alloc(outconf);
1.276 schwarze 966: break;
967: case OUTT_ASCII:
1.335 schwarze 968: outst->outdata = ascii_alloc(outconf);
1.276 schwarze 969: break;
970: case OUTT_PDF:
1.335 schwarze 971: outst->outdata = pdf_alloc(outconf);
1.276 schwarze 972: break;
973: case OUTT_PS:
1.335 schwarze 974: outst->outdata = ps_alloc(outconf);
1.276 schwarze 975: break;
976: default:
977: break;
1.111 kristaps 978: }
1.186 schwarze 979: }
980:
1.227 schwarze 981: static void
1.329 schwarze 982: passthrough(int fd, int synopsis_only)
1.186 schwarze 983: {
1.197 schwarze 984: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
985: const char synr[] = "SYNOPSIS";
986:
987: FILE *stream;
1.257 schwarze 988: char *line, *cp;
989: size_t linesz;
1.277 schwarze 990: ssize_t len, written;
1.329 schwarze 991: int lno, print;
1.210 schwarze 992:
1.329 schwarze 993: stream = NULL;
1.257 schwarze 994: line = NULL;
995: linesz = 0;
1.197 schwarze 996:
1.277 schwarze 997: if (fflush(stdout) == EOF) {
1.329 schwarze 998: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
999: goto done;
1.277 schwarze 1000: }
1.197 schwarze 1001: if ((stream = fdopen(fd, "r")) == NULL) {
1002: close(fd);
1.329 schwarze 1003: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
1004: goto done;
1.197 schwarze 1005: }
1.186 schwarze 1006:
1.329 schwarze 1007: lno = print = 0;
1.277 schwarze 1008: while ((len = getline(&line, &linesz, stream)) != -1) {
1.329 schwarze 1009: lno++;
1.257 schwarze 1010: cp = line;
1.197 schwarze 1011: if (synopsis_only) {
1012: if (print) {
1.257 schwarze 1013: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 1014: goto done;
1.277 schwarze 1015: while (isspace((unsigned char)*cp)) {
1.257 schwarze 1016: cp++;
1.277 schwarze 1017: len--;
1018: }
1.197 schwarze 1019: } else {
1.257 schwarze 1020: if (strcmp(cp, synb) == 0 ||
1021: strcmp(cp, synr) == 0)
1.197 schwarze 1022: print = 1;
1023: continue;
1024: }
1025: }
1.277 schwarze 1026: for (; len > 0; len -= written) {
1.329 schwarze 1027: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1028: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1029: "%s", strerror(errno));
1030: goto done;
1031: }
1.257 schwarze 1032: }
1.197 schwarze 1033: }
1.329 schwarze 1034: if (ferror(stream))
1035: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.193 schwarze 1036:
1.197 schwarze 1037: done:
1.257 schwarze 1038: free(line);
1.329 schwarze 1039: if (stream != NULL)
1040: fclose(stream);
1.1 kristaps 1041: }
1042:
1043: static int
1.334 schwarze 1044: woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1.1 kristaps 1045: {
1.34 kristaps 1046: char *v, *o;
1.293 schwarze 1047: const char *toks[11];
1.1 kristaps 1048:
1.103 schwarze 1049: toks[0] = "stop";
1050: toks[1] = "all";
1.293 schwarze 1051: toks[2] = "base";
1052: toks[3] = "style";
1053: toks[4] = "warning";
1054: toks[5] = "error";
1055: toks[6] = "unsupp";
1056: toks[7] = "fatal";
1057: toks[8] = "openbsd";
1058: toks[9] = "netbsd";
1059: toks[10] = NULL;
1.1 kristaps 1060:
1.34 kristaps 1061: while (*arg) {
1062: o = arg;
1.272 schwarze 1063: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1064: case 0:
1.334 schwarze 1065: *wstop = 1;
1.1 kristaps 1066: break;
1.173 schwarze 1067: case 1:
1068: case 2:
1.312 schwarze 1069: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1070: break;
1071: case 3:
1.312 schwarze 1072: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1073: break;
1.290 schwarze 1074: case 4:
1.312 schwarze 1075: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1076: break;
1.290 schwarze 1077: case 5:
1.312 schwarze 1078: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1079: break;
1.290 schwarze 1080: case 6:
1.312 schwarze 1081: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1082: break;
1083: case 7:
1.329 schwarze 1084: mandoc_msg_setmin(MANDOCERR_BADARG);
1.293 schwarze 1085: break;
1086: case 8:
1.312 schwarze 1087: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1088: *os_e = MANDOC_OS_OPENBSD;
1.293 schwarze 1089: break;
1090: case 9:
1.312 schwarze 1091: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1092: *os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1093: break;
1.1 kristaps 1094: default:
1.329 schwarze 1095: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1096: return -1;
1.1 kristaps 1097: }
1.34 kristaps 1098: }
1.329 schwarze 1099: return 0;
1.333 schwarze 1100: }
1101:
1102: /*
1103: * Wait until moved to the foreground,
1104: * then fork the pager and wait for the user to close it.
1105: */
1106: static void
1107: run_pager(struct tag_files *tag_files)
1108: {
1109: int signum, status;
1110: pid_t man_pgid, tc_pgid;
1111: pid_t pager_pid, wait_pid;
1112:
1113: man_pgid = getpgid(0);
1114: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
1115: man_pgid;
1116: pager_pid = 0;
1117: signum = SIGSTOP;
1118:
1119: for (;;) {
1120: /* Stop here until moved to the foreground. */
1121:
1122: tc_pgid = tcgetpgrp(tag_files->ofd);
1123: if (tc_pgid != man_pgid) {
1124: if (tc_pgid == pager_pid) {
1125: (void)tcsetpgrp(tag_files->ofd, man_pgid);
1126: if (signum == SIGTTIN)
1127: continue;
1128: } else
1129: tag_files->tcpgid = tc_pgid;
1130: kill(0, signum);
1131: continue;
1132: }
1133:
1134: /* Once in the foreground, activate the pager. */
1135:
1136: if (pager_pid) {
1137: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1138: kill(pager_pid, SIGCONT);
1139: } else
1140: pager_pid = spawn_pager(tag_files);
1141:
1142: /* Wait for the pager to stop or exit. */
1143:
1144: while ((wait_pid = waitpid(pager_pid, &status,
1145: WUNTRACED)) == -1 && errno == EINTR)
1146: continue;
1147:
1148: if (wait_pid == -1) {
1149: mandoc_msg(MANDOCERR_WAIT, 0, 0,
1150: "%s", strerror(errno));
1151: break;
1152: }
1153: if (!WIFSTOPPED(status))
1154: break;
1155:
1156: signum = WSTOPSIG(status);
1157: }
1.183 schwarze 1158: }
1159:
1.225 schwarze 1160: static pid_t
1.244 schwarze 1161: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1162: {
1.265 schwarze 1163: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1164: #define MAX_PAGER_ARGS 16
1165: char *argv[MAX_PAGER_ARGS];
1166: const char *pager;
1167: char *cp;
1.322 schwarze 1168: #if HAVE_LESS_T
1.239 schwarze 1169: size_t cmdlen;
1.322 schwarze 1170: #endif
1.309 schwarze 1171: int argc, use_ofn;
1.225 schwarze 1172: pid_t pager_pid;
1.183 schwarze 1173:
1.239 schwarze 1174: pager = getenv("MANPAGER");
1175: if (pager == NULL || *pager == '\0')
1176: pager = getenv("PAGER");
1177: if (pager == NULL || *pager == '\0')
1178: pager = "more -s";
1179: cp = mandoc_strdup(pager);
1180:
1181: /*
1182: * Parse the pager command into words.
1183: * Intentionally do not do anything fancy here.
1184: */
1185:
1186: argc = 0;
1.309 schwarze 1187: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1188: argv[argc++] = cp;
1189: cp = strchr(cp, ' ');
1190: if (cp == NULL)
1191: break;
1192: *cp++ = '\0';
1193: while (*cp == ' ')
1194: cp++;
1195: if (*cp == '\0')
1196: break;
1197: }
1198:
1.268 schwarze 1199: /* For less(1), use the tag file. */
1.239 schwarze 1200:
1.309 schwarze 1201: use_ofn = 1;
1.322 schwarze 1202: #if HAVE_LESS_T
1.332 schwarze 1203: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1204: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1205: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1206: argv[argc++] = mandoc_strdup("-T");
1207: argv[argc++] = tag_files->tfn;
1.309 schwarze 1208: if (tag_files->tagname != NULL) {
1209: argv[argc++] = mandoc_strdup("-t");
1210: argv[argc++] = tag_files->tagname;
1211: use_ofn = 0;
1212: }
1.244 schwarze 1213: }
1.239 schwarze 1214: }
1.322 schwarze 1215: #endif
1.309 schwarze 1216: if (use_ofn)
1217: argv[argc++] = tag_files->ofn;
1.239 schwarze 1218: argv[argc] = NULL;
1219:
1.225 schwarze 1220: switch (pager_pid = fork()) {
1.183 schwarze 1221: case -1:
1.329 schwarze 1222: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1223: exit(mandoc_msg_getrc());
1.183 schwarze 1224: case 0:
1.224 schwarze 1225: break;
1226: default:
1.258 schwarze 1227: (void)setpgid(pager_pid, 0);
1.279 schwarze 1228: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1229: #if HAVE_PLEDGE
1.329 schwarze 1230: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1231: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1232: "%s", strerror(errno));
1233: exit(mandoc_msg_getrc());
1234: }
1.255 schwarze 1235: #endif
1.259 schwarze 1236: tag_files->pager_pid = pager_pid;
1.245 schwarze 1237: return pager_pid;
1.184 schwarze 1238: }
1239:
1.224 schwarze 1240: /* The child process becomes the pager. */
1.184 schwarze 1241:
1.329 schwarze 1242: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1243: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1244: _exit(mandoc_msg_getrc());
1245: }
1.244 schwarze 1246: close(tag_files->ofd);
1.303 schwarze 1247: assert(tag_files->tfd == -1);
1.265 schwarze 1248:
1249: /* Do not start the pager before controlling the terminal. */
1250:
1.279 schwarze 1251: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1252: nanosleep(&timeout, NULL);
1253:
1.184 schwarze 1254: execvp(argv[0], argv);
1.329 schwarze 1255: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1256: _exit(mandoc_msg_getrc());
1.71 kristaps 1257: }
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