Annotation of mandoc/main.c, Revision 1.334
1.334 ! schwarze 1: /* $Id: main.c,v 1.333 2019/07/26 18:01:43 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:
1.5 kristaps 80: struct curparse {
1.293 schwarze 81: struct manoutput *outopts; /* output options */
82: void *outdata; /* data for output */
1.148 kristaps 83: int wstop; /* stop after a file with a warning */
1.173 schwarze 84: enum outt outtype; /* which output to use */
1.79 kristaps 85: };
1.270 schwarze 86:
87:
88: int mandocdb(int, char *[]);
1.79 kristaps 89:
1.312 schwarze 90: static void check_xr(void);
1.213 schwarze 91: static int fs_lookup(const struct manpaths *,
92: size_t ipath, const char *,
93: const char *, const char *,
94: struct manpage **, size_t *);
1.295 schwarze 95: static int fs_search(const struct mansearch *,
1.213 schwarze 96: const struct manpaths *, int, char**,
97: struct manpage **, size_t *);
1.276 schwarze 98: static void outdata_alloc(struct curparse *);
1.334 ! schwarze 99: static void parse(struct mparse *, int, const char *,
! 100: struct curparse *);
1.329 schwarze 101: static void passthrough(int, int);
1.333 schwarze 102: static void run_pager(struct tag_files *);
1.244 schwarze 103: static pid_t spawn_pager(struct tag_files *);
1.283 schwarze 104: static void usage(enum argmode) __attribute__((__noreturn__));
1.334 ! schwarze 105: static int woptions(char *, enum mandoc_os *, int *);
1.1 kristaps 106:
1.182 schwarze 107: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.202 schwarze 108: static char help_arg[] = "help";
109: static char *help_argv[] = {help_arg, NULL};
1.1 kristaps 110:
1.173 schwarze 111:
1.1 kristaps 112: int
113: main(int argc, char *argv[])
114: {
1.334 ! schwarze 115: struct manconf conf; /* Manpaths and output options. */
1.5 kristaps 116: struct curparse curp;
1.334 ! schwarze 117: struct winsize ws; /* Result of ioctl(TIOCGWINSZ). */
! 118: struct mansearch search; /* Search options. */
! 119: struct manpage *res, *resp; /* Search results. */
! 120: struct mparse *mp; /* Opaque parser object. */
! 121: struct tag_files *tag_files; /* Tagging state variables. */
! 122: const char *conf_file; /* -C: alternate config file. */
! 123: const char *os_s; /* -I: Operating system for display. */
1.282 schwarze 124: const char *progname, *sec, *thisarg;
1.334 ! schwarze 125: char *defpaths; /* -M: override manpaths. */
! 126: char *auxpaths; /* -m: additional manpaths. */
! 127: char *oarg; /* -O: output option string. */
! 128: char *tagarg; /* -O tag: default value. */
1.207 schwarze 129: unsigned char *uc;
1.334 ! schwarze 130: size_t sz; /* Number of elements in res[]. */
! 131: size_t i, ssz;
! 132: int options; /* Parser options. */
! 133: int show_usage; /* Invalid argument: give up. */
! 134: int use_pager; /* According to command line. */
1.230 schwarze 135: int prio, best_prio;
1.305 schwarze 136: int fd, startdir;
1.180 schwarze 137: int c;
1.334 ! schwarze 138: enum mandoc_os os_e; /* Check base system conventions. */
! 139: enum outmode outmode; /* According to command line. */
1.1 kristaps 140:
1.254 schwarze 141: #if HAVE_PROGNAME
142: progname = getprogname();
143: #else
1.219 schwarze 144: if (argc < 1)
1.254 schwarze 145: progname = mandoc_strdup("mandoc");
146: else if ((progname = strrchr(argv[0], '/')) == NULL)
147: progname = argv[0];
1.54 kristaps 148: else
1.254 schwarze 149: ++progname;
150: setprogname(progname);
1.247 schwarze 151: #endif
1.203 schwarze 152:
1.317 schwarze 153: mandoc_msg_setoutfile(stderr);
1.254 schwarze 154: if (strncmp(progname, "mandocdb", 8) == 0 ||
155: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 156: return mandocdb(argc, argv);
1.179 schwarze 157:
1.255 schwarze 158: #if HAVE_PLEDGE
1.329 schwarze 159: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
160: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
161: return mandoc_msg_getrc();
162: }
1.269 kristaps 163: #endif
164: #if HAVE_SANDBOX_INIT
165: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
166: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 167: #endif
168:
1.180 schwarze 169: /* Search options. */
170:
1.229 schwarze 171: memset(&conf, 0, sizeof(conf));
1.334 ! schwarze 172: conf_file = NULL;
! 173: defpaths = auxpaths = NULL;
1.180 schwarze 174:
175: memset(&search, 0, sizeof(struct mansearch));
176: search.outkey = "Nd";
1.282 schwarze 177: oarg = NULL;
1.180 schwarze 178:
1.254 schwarze 179: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 180: search.argmode = ARG_NAME;
1.254 schwarze 181: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 182: search.argmode = ARG_EXPR;
1.254 schwarze 183: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 184: search.argmode = ARG_WORD;
1.254 schwarze 185: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 186: search.argmode = ARG_NAME;
1.180 schwarze 187: else
188: search.argmode = ARG_FILE;
189:
190: /* Parser and formatter options. */
1.54 kristaps 191:
1.334 ! schwarze 192: os_e = MANDOC_OS_OTHER;
! 193: os_s = NULL;
1.51 kristaps 194: memset(&curp, 0, sizeof(struct curparse));
1.201 schwarze 195: curp.outtype = OUTT_LOCALE;
1.230 schwarze 196: curp.outopts = &conf.output;
1.194 schwarze 197: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.19 kristaps 198:
1.244 schwarze 199: use_pager = 1;
200: tag_files = NULL;
1.180 schwarze 201: show_usage = 0;
1.181 schwarze 202: outmode = OUTMODE_DEF;
1.183 schwarze 203:
1.289 schwarze 204: while ((c = getopt(argc, argv,
205: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
206: if (c == 'i' && search.argmode == ARG_EXPR) {
207: optind--;
208: break;
209: }
1.1 kristaps 210: switch (c) {
1.181 schwarze 211: case 'a':
212: outmode = OUTMODE_ALL;
213: break;
1.180 schwarze 214: case 'C':
215: conf_file = optarg;
216: break;
1.183 schwarze 217: case 'c':
1.244 schwarze 218: use_pager = 0;
1.183 schwarze 219: break;
1.180 schwarze 220: case 'f':
221: search.argmode = ARG_WORD;
222: break;
1.190 schwarze 223: case 'h':
1.230 schwarze 224: conf.output.synopsisonly = 1;
1.244 schwarze 225: use_pager = 0;
1.190 schwarze 226: outmode = OUTMODE_ALL;
227: break;
1.173 schwarze 228: case 'I':
1.329 schwarze 229: if (strncmp(optarg, "os=", 3) != 0) {
230: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
231: "-I %s", optarg);
232: return mandoc_msg_getrc();
1.166 schwarze 233: }
1.334 ! schwarze 234: if (os_s != NULL) {
1.329 schwarze 235: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
236: "-I %s", optarg);
237: return mandoc_msg_getrc();
1.166 schwarze 238: }
1.334 ! schwarze 239: os_s = optarg + 3;
1.181 schwarze 240: break;
1.194 schwarze 241: case 'K':
1.329 schwarze 242: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
243: if (strcmp(optarg, "utf-8") == 0)
244: options |= MPARSE_UTF8;
245: else if (strcmp(optarg, "iso-8859-1") == 0)
246: options |= MPARSE_LATIN1;
247: else if (strcmp(optarg, "us-ascii") != 0) {
248: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
249: "-K %s", optarg);
250: return mandoc_msg_getrc();
251: }
1.194 schwarze 252: break;
1.180 schwarze 253: case 'k':
254: search.argmode = ARG_EXPR;
255: break;
1.188 schwarze 256: case 'l':
257: search.argmode = ARG_FILE;
258: outmode = OUTMODE_ALL;
259: break;
1.180 schwarze 260: case 'M':
261: defpaths = optarg;
262: break;
1.173 schwarze 263: case 'm':
1.180 schwarze 264: auxpaths = optarg;
1.10 kristaps 265: break;
1.173 schwarze 266: case 'O':
1.282 schwarze 267: oarg = optarg;
1.44 kristaps 268: break;
1.180 schwarze 269: case 'S':
270: search.arch = optarg;
271: break;
272: case 's':
273: search.sec = optarg;
274: break;
1.173 schwarze 275: case 'T':
1.329 schwarze 276: if (strcmp(optarg, "ascii") == 0)
277: curp.outtype = OUTT_ASCII;
278: else if (strcmp(optarg, "lint") == 0) {
279: curp.outtype = OUTT_LINT;
280: mandoc_msg_setoutfile(stdout);
281: mandoc_msg_setmin(MANDOCERR_BASE);
282: } else if (strcmp(optarg, "tree") == 0)
283: curp.outtype = OUTT_TREE;
284: else if (strcmp(optarg, "man") == 0)
285: curp.outtype = OUTT_MAN;
286: else if (strcmp(optarg, "html") == 0)
287: curp.outtype = OUTT_HTML;
288: else if (strcmp(optarg, "markdown") == 0)
289: curp.outtype = OUTT_MARKDOWN;
290: else if (strcmp(optarg, "utf8") == 0)
291: curp.outtype = OUTT_UTF8;
292: else if (strcmp(optarg, "locale") == 0)
293: curp.outtype = OUTT_LOCALE;
294: else if (strcmp(optarg, "ps") == 0)
295: curp.outtype = OUTT_PS;
296: else if (strcmp(optarg, "pdf") == 0)
297: curp.outtype = OUTT_PDF;
298: else {
299: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
300: "-T %s", optarg);
301: return mandoc_msg_getrc();
302: }
1.1 kristaps 303: break;
1.173 schwarze 304: case 'W':
1.334 ! schwarze 305: if (woptions(optarg, &os_e, &curp.wstop) == -1)
1.329 schwarze 306: return mandoc_msg_getrc();
1.1 kristaps 307: break;
1.181 schwarze 308: case 'w':
309: outmode = OUTMODE_FLN;
310: break;
1.1 kristaps 311: default:
1.180 schwarze 312: show_usage = 1;
313: break;
1.1 kristaps 314: }
1.180 schwarze 315: }
316:
317: if (show_usage)
318: usage(search.argmode);
319:
1.185 schwarze 320: /* Postprocess options. */
321:
1.181 schwarze 322: if (outmode == OUTMODE_DEF) {
323: switch (search.argmode) {
324: case ARG_FILE:
325: outmode = OUTMODE_ALL;
1.244 schwarze 326: use_pager = 0;
1.181 schwarze 327: break;
328: case ARG_NAME:
329: outmode = OUTMODE_ONE;
330: break;
331: default:
332: outmode = OUTMODE_LST;
333: break;
1.282 schwarze 334: }
335: }
336:
337: if (oarg != NULL) {
338: if (outmode == OUTMODE_LST)
339: search.outkey = oarg;
340: else {
341: while (oarg != NULL) {
342: if (manconf_output(&conf.output,
1.327 schwarze 343: strsep(&oarg, ","), 0) == -1)
1.329 schwarze 344: return mandoc_msg_getrc();
1.282 schwarze 345: }
1.181 schwarze 346: }
347: }
348:
1.315 schwarze 349: if (curp.outtype != OUTT_TREE || !curp.outopts->noval)
350: options |= MPARSE_VALIDATE;
351:
1.246 schwarze 352: if (outmode == OUTMODE_FLN ||
353: outmode == OUTMODE_LST ||
354: !isatty(STDOUT_FILENO))
355: use_pager = 0;
1.304 schwarze 356:
357: if (use_pager &&
358: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 359: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
360: ws.ws_col > 1) {
1.304 schwarze 361: if (conf.output.width == 0 && ws.ws_col < 79)
362: conf.output.width = ws.ws_col - 1;
363: if (conf.output.indent == 0 && ws.ws_col < 66)
364: conf.output.indent = 3;
365: }
1.246 schwarze 366:
1.255 schwarze 367: #if HAVE_PLEDGE
1.329 schwarze 368: if (use_pager == 0) {
369: if (pledge("stdio rpath", NULL) == -1) {
370: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
371: "%s", strerror(errno));
372: return mandoc_msg_getrc();
373: }
374: }
1.255 schwarze 375: #endif
376:
1.185 schwarze 377: /* Parse arguments. */
378:
1.219 schwarze 379: if (argc > 0) {
380: argc -= optind;
381: argv += optind;
382: }
1.186 schwarze 383: resp = NULL;
1.185 schwarze 384:
1.202 schwarze 385: /*
386: * Quirks for help(1)
387: * and for a man(1) section argument without -s.
388: */
389:
390: if (search.argmode == ARG_NAME) {
1.254 schwarze 391: if (*progname == 'h') {
1.202 schwarze 392: if (argc == 0) {
393: argv = help_argv;
394: argc = 1;
395: }
1.211 schwarze 396: } else if (argc > 1 &&
1.223 kristaps 397: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 398: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.324 schwarze 399: isalpha(uc[1]))) ||
1.207 schwarze 400: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 401: search.sec = (char *)uc;
1.202 schwarze 402: argv++;
403: argc--;
404: }
1.216 schwarze 405: if (search.arch == NULL)
406: search.arch = getenv("MACHINE");
1.223 kristaps 407: #ifdef MACHINE
1.216 schwarze 408: if (search.arch == NULL)
409: search.arch = MACHINE;
1.223 kristaps 410: #endif
1.185 schwarze 411: }
1.182 schwarze 412:
1.316 schwarze 413: /*
414: * Use the first argument for -O tag in addition to
415: * using it as a search term for man(1) or apropos(1).
416: */
417:
418: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
419: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
420: strchr(*argv, '=') : NULL;
421: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
422: }
423:
1.180 schwarze 424: /* man(1), whatis(1), apropos(1) */
425:
426: if (search.argmode != ARG_FILE) {
1.199 schwarze 427: if (search.argmode == ARG_NAME &&
428: outmode == OUTMODE_ONE)
429: search.firstmatch = 1;
1.182 schwarze 430:
431: /* Access the mandoc database. */
432:
1.229 schwarze 433: manconf_parse(&conf, conf_file, defpaths, auxpaths);
434: if ( ! mansearch(&search, &conf.manpath,
435: argc, argv, &res, &sz))
1.180 schwarze 436: usage(search.argmode);
1.213 schwarze 437:
1.305 schwarze 438: if (sz == 0 && search.argmode == ARG_NAME)
1.329 schwarze 439: (void)fs_search(&search, &conf.manpath,
1.305 schwarze 440: argc, argv, &res, &sz);
441:
442: if (search.argmode == ARG_NAME) {
443: for (c = 0; c < argc; c++) {
444: if (strchr(argv[c], '/') == NULL)
445: continue;
446: if (access(argv[c], R_OK) == -1) {
1.329 schwarze 447: mandoc_msg_setinfilename(argv[c]);
448: mandoc_msg(MANDOCERR_BADARG_BAD,
449: 0, 0, "%s", strerror(errno));
450: mandoc_msg_setinfilename(NULL);
1.305 schwarze 451: continue;
452: }
453: res = mandoc_reallocarray(res,
454: sz + 1, sizeof(*res));
455: res[sz].file = mandoc_strdup(argv[c]);
456: res[sz].names = NULL;
457: res[sz].output = NULL;
1.323 schwarze 458: res[sz].bits = 0;
1.305 schwarze 459: res[sz].ipath = SIZE_MAX;
460: res[sz].sec = 10;
461: res[sz].form = FORM_SRC;
462: sz++;
463: }
1.237 schwarze 464: }
1.187 schwarze 465:
466: if (sz == 0) {
1.305 schwarze 467: if (search.argmode != ARG_NAME)
468: warnx("nothing appropriate");
1.312 schwarze 469: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.187 schwarze 470: goto out;
471: }
1.182 schwarze 472:
473: /*
474: * For standard man(1) and -a output mode,
475: * prepare for copying filename pointers
476: * into the program parameter array.
477: */
478:
479: if (outmode == OUTMODE_ONE) {
480: argc = 1;
1.325 schwarze 481: best_prio = 40;
1.186 schwarze 482: } else if (outmode == OUTMODE_ALL)
1.182 schwarze 483: argc = (int)sz;
484:
485: /* Iterate all matching manuals. */
486:
1.213 schwarze 487: resp = res;
1.181 schwarze 488: for (i = 0; i < sz; i++) {
489: if (outmode == OUTMODE_FLN)
490: puts(res[i].file);
1.182 schwarze 491: else if (outmode == OUTMODE_LST)
1.181 schwarze 492: printf("%s - %s\n", res[i].names,
493: res[i].output == NULL ? "" :
494: res[i].output);
1.186 schwarze 495: else if (outmode == OUTMODE_ONE) {
1.182 schwarze 496: /* Search for the best section. */
1.264 schwarze 497: sec = res[i].file;
498: sec += strcspn(sec, "123456789");
499: if (sec[0] == '\0')
1.325 schwarze 500: continue; /* No section at all. */
1.264 schwarze 501: prio = sec_prios[sec[0] - '1'];
1.325 schwarze 502: if (search.sec != NULL) {
503: ssz = strlen(search.sec);
504: if (strncmp(sec, search.sec, ssz) == 0)
505: sec += ssz;
506: } else
507: sec++; /* Prefer without suffix. */
508: if (*sec != '/')
509: prio += 10; /* Wrong dir name. */
510: if (search.sec != NULL &&
511: (strlen(sec) <= ssz + 3 ||
512: strcmp(sec + strlen(sec) - ssz,
513: search.sec) != 0))
514: prio += 20; /* Wrong file ext. */
1.182 schwarze 515: if (prio >= best_prio)
516: continue;
517: best_prio = prio;
1.186 schwarze 518: resp = res + i;
1.182 schwarze 519: }
1.181 schwarze 520: }
1.182 schwarze 521:
522: /*
523: * For man(1), -a and -i output mode, fall through
524: * to the main mandoc(1) code iterating files
525: * and running the parsers on each of them.
526: */
527:
528: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
529: goto out;
1.180 schwarze 530: }
531:
532: /* mandoc(1) */
533:
1.255 schwarze 534: #if HAVE_PLEDGE
1.260 schwarze 535: if (use_pager) {
1.329 schwarze 536: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
537: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
538: "%s", strerror(errno));
539: return mandoc_msg_getrc();
540: }
1.260 schwarze 541: } else {
1.329 schwarze 542: if (pledge("stdio rpath", NULL) == -1) {
543: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
544: "%s", strerror(errno));
545: return mandoc_msg_getrc();
546: }
1.260 schwarze 547: }
1.255 schwarze 548: #endif
549:
1.329 schwarze 550: if (search.argmode == ARG_FILE && auxpaths != NULL) {
551: if (strcmp(auxpaths, "doc") == 0)
552: options |= MPARSE_MDOC;
553: else if (strcmp(auxpaths, "an") == 0)
554: options |= MPARSE_MAN;
555: }
1.241 schwarze 556:
1.249 schwarze 557: mchars_alloc();
1.334 ! schwarze 558: mp = mparse_alloc(options, os_e, os_s);
1.154 kristaps 559:
1.219 schwarze 560: if (argc < 1) {
1.316 schwarze 561: if (use_pager) {
1.244 schwarze 562: tag_files = tag_init();
1.328 schwarze 563: if (tag_files != NULL)
564: tag_files->tagname = conf.output.tag;
1.316 schwarze 565: }
1.312 schwarze 566: thisarg = "<stdin>";
567: mandoc_msg_setinfilename(thisarg);
1.334 ! schwarze 568: parse(mp, STDIN_FILENO, thisarg, &curp);
1.312 schwarze 569: mandoc_msg_setinfilename(NULL);
1.212 schwarze 570: }
1.64 kristaps 571:
1.305 schwarze 572: /*
573: * Remember the original working directory, if possible.
574: * This will be needed if some names on the command line
575: * are page names and some are relative file names.
576: * Do not error out if the current directory is not
577: * readable: Maybe it won't be needed after all.
578: */
579: startdir = open(".", O_RDONLY | O_DIRECTORY);
580:
1.219 schwarze 581: while (argc > 0) {
1.305 schwarze 582:
583: /*
584: * Changing directories is not needed in ARG_FILE mode.
585: * Do it on a best-effort basis. Even in case of
586: * failure, some functionality may still work.
587: */
588: if (resp != NULL) {
589: if (resp->ipath != SIZE_MAX)
590: (void)chdir(conf.manpath.paths[resp->ipath]);
591: else if (startdir != -1)
592: (void)fchdir(startdir);
1.312 schwarze 593: thisarg = resp->file;
594: } else
595: thisarg = *argv;
1.305 schwarze 596:
1.329 schwarze 597: mandoc_msg_setinfilename(thisarg);
1.334 ! schwarze 598: fd = mparse_open(mp, thisarg);
1.212 schwarze 599: if (fd != -1) {
1.244 schwarze 600: if (use_pager) {
1.309 schwarze 601: use_pager = 0;
1.244 schwarze 602: tag_files = tag_init();
1.328 schwarze 603: if (tag_files != NULL)
604: tag_files->tagname = conf.output.tag;
1.244 schwarze 605: }
1.212 schwarze 606:
1.312 schwarze 607: if (resp == NULL || resp->form == FORM_SRC)
1.334 ! schwarze 608: parse(mp, fd, thisarg, &curp);
1.305 schwarze 609: else
1.329 schwarze 610: passthrough(fd, conf.output.synopsisonly);
1.302 schwarze 611:
612: if (ferror(stdout)) {
613: if (tag_files != NULL) {
1.329 schwarze 614: mandoc_msg(MANDOCERR_WRITE, 0, 0,
615: "%s: %s", tag_files->ofn,
616: strerror(errno));
1.302 schwarze 617: tag_unlink();
618: tag_files = NULL;
619: } else
1.329 schwarze 620: mandoc_msg(MANDOCERR_WRITE, 0, 0,
621: "%s", strerror(errno));
1.302 schwarze 622: break;
623: }
1.212 schwarze 624:
1.276 schwarze 625: if (argc > 1 && curp.outtype <= OUTT_UTF8) {
626: if (curp.outdata == NULL)
627: outdata_alloc(&curp);
1.267 schwarze 628: terminal_sepline(curp.outdata);
1.276 schwarze 629: }
1.314 schwarze 630: } else
1.329 schwarze 631: mandoc_msg(resp == NULL ? MANDOCERR_BADARG_BAD :
632: MANDOCERR_OPEN, 0, 0, "%s", strerror(errno));
633:
634: mandoc_msg_setinfilename(NULL);
1.192 schwarze 635:
1.312 schwarze 636: if (curp.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 637: break;
1.210 schwarze 638:
1.212 schwarze 639: if (resp != NULL)
640: resp++;
641: else
642: argv++;
643: if (--argc)
1.334 ! schwarze 644: mparse_reset(mp);
1.1 kristaps 645: }
1.305 schwarze 646: if (startdir != -1) {
647: (void)fchdir(startdir);
648: close(startdir);
649: }
1.1 kristaps 650:
1.252 schwarze 651: if (curp.outdata != NULL) {
652: switch (curp.outtype) {
653: case OUTT_HTML:
654: html_free(curp.outdata);
655: break;
656: case OUTT_UTF8:
657: case OUTT_LOCALE:
658: case OUTT_ASCII:
659: ascii_free(curp.outdata);
660: break;
661: case OUTT_PDF:
662: case OUTT_PS:
663: pspdf_free(curp.outdata);
664: break;
665: default:
666: break;
667: }
1.250 schwarze 668: }
1.294 schwarze 669: mandoc_xr_free();
1.334 ! schwarze 670: mparse_free(mp);
1.249 schwarze 671: mchars_free();
1.182 schwarze 672:
673: out:
674: if (search.argmode != ARG_FILE) {
1.229 schwarze 675: manconf_free(&conf);
1.182 schwarze 676: mansearch_free(res, sz);
677: }
1.1 kristaps 678:
1.244 schwarze 679: if (tag_files != NULL) {
1.225 schwarze 680: fclose(stdout);
1.239 schwarze 681: tag_write();
1.333 schwarze 682: run_pager(tag_files);
1.239 schwarze 683: tag_unlink();
1.331 schwarze 684: } else if (curp.outtype != OUTT_LINT &&
685: (search.argmode == ARG_FILE || sz > 0))
1.330 schwarze 686: mandoc_msg_summary();
687:
1.312 schwarze 688: return (int)mandoc_msg_getrc();
1.1 kristaps 689: }
690:
1.55 kristaps 691: static void
1.180 schwarze 692: usage(enum argmode argmode)
1.1 kristaps 693: {
1.180 schwarze 694: switch (argmode) {
695: case ARG_FILE:
1.287 schwarze 696: fputs("usage: mandoc [-ac] [-I os=name] "
697: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 698: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 699: break;
700: case ARG_NAME:
1.287 schwarze 701: fputs("usage: man [-acfhklw] [-C file] [-M path] "
702: "[-m path] [-S subsection]\n"
703: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 704: break;
705: case ARG_WORD:
1.287 schwarze 706: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 707: "[-M path] [-m path] [-O outkey] [-S arch]\n"
708: "\t [-s section] name ...\n", stderr);
1.180 schwarze 709: break;
710: case ARG_EXPR:
1.287 schwarze 711: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 712: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 713: "\t [-s section] expression ...\n", stderr);
714: break;
715: }
1.105 kristaps 716: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 717: }
1.213 schwarze 718:
719: static int
720: fs_lookup(const struct manpaths *paths, size_t ipath,
721: const char *sec, const char *arch, const char *name,
722: struct manpage **res, size_t *ressz)
723: {
1.326 schwarze 724: struct stat sb;
1.222 schwarze 725: glob_t globinfo;
1.213 schwarze 726: struct manpage *page;
727: char *file;
1.274 schwarze 728: int globres;
729: enum form form;
1.213 schwarze 730:
1.222 schwarze 731: form = FORM_SRC;
1.213 schwarze 732: mandoc_asprintf(&file, "%s/man%s/%s.%s",
733: paths->paths[ipath], sec, name, sec);
1.326 schwarze 734: if (stat(file, &sb) != -1)
1.213 schwarze 735: goto found;
736: free(file);
737:
738: mandoc_asprintf(&file, "%s/cat%s/%s.0",
739: paths->paths[ipath], sec, name);
1.326 schwarze 740: if (stat(file, &sb) != -1) {
1.213 schwarze 741: form = FORM_CAT;
742: goto found;
743: }
744: free(file);
745:
746: if (arch != NULL) {
747: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
748: paths->paths[ipath], sec, arch, name, sec);
1.326 schwarze 749: if (stat(file, &sb) != -1)
1.213 schwarze 750: goto found;
751: free(file);
752: }
1.222 schwarze 753:
1.240 schwarze 754: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 755: paths->paths[ipath], sec, name);
756: globres = glob(file, 0, NULL, &globinfo);
757: if (globres != 0 && globres != GLOB_NOMATCH)
1.329 schwarze 758: mandoc_msg(MANDOCERR_GLOB, 0, 0,
759: "%s: %s", file, strerror(errno));
1.222 schwarze 760: free(file);
761: if (globres == 0)
762: file = mandoc_strdup(*globinfo.gl_pathv);
763: globfree(&globinfo);
1.326 schwarze 764: if (globres == 0) {
765: if (stat(file, &sb) != -1)
766: goto found;
767: free(file);
768: }
1.296 schwarze 769: if (res != NULL || ipath + 1 != paths->sz)
1.329 schwarze 770: return -1;
1.213 schwarze 771:
1.296 schwarze 772: mandoc_asprintf(&file, "%s.%s", name, sec);
1.326 schwarze 773: globres = stat(file, &sb);
1.296 schwarze 774: free(file);
1.329 schwarze 775: return globres;
1.296 schwarze 776:
1.213 schwarze 777: found:
1.266 schwarze 778: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
779: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 780: if (res == NULL) {
781: free(file);
1.329 schwarze 782: return 0;
1.296 schwarze 783: }
1.329 schwarze 784: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.213 schwarze 785: page = *res + (*ressz - 1);
786: page->file = file;
787: page->names = NULL;
788: page->output = NULL;
1.323 schwarze 789: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 790: page->ipath = ipath;
791: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
792: page->form = form;
1.329 schwarze 793: return 0;
1.213 schwarze 794: }
795:
1.295 schwarze 796: static int
1.213 schwarze 797: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
798: int argc, char **argv, struct manpage **res, size_t *ressz)
799: {
800: const char *const sections[] =
1.264 schwarze 801: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 802: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
803:
804: size_t ipath, isec, lastsz;
805:
806: assert(cfg->argmode == ARG_NAME);
807:
1.295 schwarze 808: if (res != NULL)
809: *res = NULL;
1.213 schwarze 810: *ressz = lastsz = 0;
811: while (argc) {
812: for (ipath = 0; ipath < paths->sz; ipath++) {
813: if (cfg->sec != NULL) {
814: if (fs_lookup(paths, ipath, cfg->sec,
1.329 schwarze 815: cfg->arch, *argv, res, ressz) != -1 &&
1.213 schwarze 816: cfg->firstmatch)
1.329 schwarze 817: return 0;
1.213 schwarze 818: } else for (isec = 0; isec < nsec; isec++)
819: if (fs_lookup(paths, ipath, sections[isec],
1.329 schwarze 820: cfg->arch, *argv, res, ressz) != -1 &&
1.213 schwarze 821: cfg->firstmatch)
1.329 schwarze 822: return 0;
1.213 schwarze 823: }
1.305 schwarze 824: if (res != NULL && *ressz == lastsz &&
1.307 schwarze 825: strchr(*argv, '/') == NULL) {
1.320 schwarze 826: if (cfg->arch != NULL &&
827: arch_valid(cfg->arch, OSENUM) == 0)
828: warnx("Unknown architecture \"%s\".",
829: cfg->arch);
830: else if (cfg->sec == NULL)
1.307 schwarze 831: warnx("No entry for %s in the manual.",
832: *argv);
833: else
834: warnx("No entry for %s in section %s "
835: "of the manual.", *argv, cfg->sec);
836: }
1.213 schwarze 837: lastsz = *ressz;
838: argv++;
839: argc--;
840: }
1.329 schwarze 841: return -1;
1.213 schwarze 842: }
1.68 joerg 843:
1.64 kristaps 844: static void
1.334 ! schwarze 845: parse(struct mparse *mp, int fd, const char *file, struct curparse *curp)
1.1 kristaps 846: {
1.315 schwarze 847: struct roff_meta *meta;
1.112 kristaps 848:
1.154 kristaps 849: /* Begin by parsing the file itself. */
1.112 kristaps 850:
1.154 kristaps 851: assert(file);
1.263 schwarze 852: assert(fd >= 0);
1.112 kristaps 853:
1.334 ! schwarze 854: mparse_readfd(mp, fd, file);
1.261 schwarze 855: if (fd != STDIN_FILENO)
856: close(fd);
1.112 kristaps 857:
1.1 kristaps 858: /*
1.154 kristaps 859: * With -Wstop and warnings or errors of at least the requested
860: * level, do not produce output.
1.1 kristaps 861: */
862:
1.312 schwarze 863: if (curp->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 864: return;
1.111 kristaps 865:
1.276 schwarze 866: if (curp->outdata == NULL)
867: outdata_alloc(curp);
1.319 schwarze 868: else if (curp->outtype == OUTT_HTML)
869: html_reset(curp);
1.111 kristaps 870:
1.315 schwarze 871: mandoc_xr_reset();
1.334 ! schwarze 872: meta = mparse_result(mp);
1.250 schwarze 873:
874: /* Execute the out device, if it exists. */
875:
1.315 schwarze 876: if (meta->macroset == MACROSET_MDOC) {
1.111 kristaps 877: switch (curp->outtype) {
1.173 schwarze 878: case OUTT_HTML:
1.315 schwarze 879: html_mdoc(curp->outdata, meta);
1.111 kristaps 880: break;
1.173 schwarze 881: case OUTT_TREE:
1.315 schwarze 882: tree_mdoc(curp->outdata, meta);
1.111 kristaps 883: break;
1.173 schwarze 884: case OUTT_MAN:
1.315 schwarze 885: man_mdoc(curp->outdata, meta);
1.164 schwarze 886: break;
1.173 schwarze 887: case OUTT_PDF:
888: case OUTT_ASCII:
889: case OUTT_UTF8:
890: case OUTT_LOCALE:
891: case OUTT_PS:
1.315 schwarze 892: terminal_mdoc(curp->outdata, meta);
1.250 schwarze 893: break;
1.285 schwarze 894: case OUTT_MARKDOWN:
1.315 schwarze 895: markdown_mdoc(curp->outdata, meta);
1.285 schwarze 896: break;
1.250 schwarze 897: default:
898: break;
899: }
900: }
1.315 schwarze 901: if (meta->macroset == MACROSET_MAN) {
1.250 schwarze 902: switch (curp->outtype) {
903: case OUTT_HTML:
1.315 schwarze 904: html_man(curp->outdata, meta);
1.250 schwarze 905: break;
906: case OUTT_TREE:
1.315 schwarze 907: tree_man(curp->outdata, meta);
1.250 schwarze 908: break;
909: case OUTT_MAN:
1.334 ! schwarze 910: mparse_copy(mp);
1.250 schwarze 911: break;
912: case OUTT_PDF:
913: case OUTT_ASCII:
914: case OUTT_UTF8:
915: case OUTT_LOCALE:
916: case OUTT_PS:
1.315 schwarze 917: terminal_man(curp->outdata, meta);
1.111 kristaps 918: break;
919: default:
920: break;
921: }
1.276 schwarze 922: }
1.312 schwarze 923: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
924: check_xr();
1.294 schwarze 925: }
926:
927: static void
1.312 schwarze 928: check_xr(void)
1.294 schwarze 929: {
930: static struct manpaths paths;
931: struct mansearch search;
932: struct mandoc_xr *xr;
933: size_t sz;
934:
935: if (paths.sz == 0)
936: manpath_base(&paths);
937:
938: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 939: if (xr->line == -1)
940: continue;
1.294 schwarze 941: search.arch = NULL;
942: search.sec = xr->sec;
943: search.outkey = NULL;
944: search.argmode = ARG_NAME;
945: search.firstmatch = 1;
946: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 947: continue;
1.329 schwarze 948: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz) != -1)
1.294 schwarze 949: continue;
1.298 schwarze 950: if (xr->count == 1)
1.313 schwarze 951: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
952: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 953: else
1.313 schwarze 954: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
955: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 956: xr->name, xr->sec, xr->count);
1.294 schwarze 957: }
1.276 schwarze 958: }
959:
960: static void
961: outdata_alloc(struct curparse *curp)
962: {
963: switch (curp->outtype) {
964: case OUTT_HTML:
965: curp->outdata = html_alloc(curp->outopts);
966: break;
967: case OUTT_UTF8:
968: curp->outdata = utf8_alloc(curp->outopts);
969: break;
970: case OUTT_LOCALE:
971: curp->outdata = locale_alloc(curp->outopts);
972: break;
973: case OUTT_ASCII:
974: curp->outdata = ascii_alloc(curp->outopts);
975: break;
976: case OUTT_PDF:
977: curp->outdata = pdf_alloc(curp->outopts);
978: break;
979: case OUTT_PS:
980: curp->outdata = ps_alloc(curp->outopts);
981: break;
982: default:
983: break;
1.111 kristaps 984: }
1.186 schwarze 985: }
986:
1.227 schwarze 987: static void
1.329 schwarze 988: passthrough(int fd, int synopsis_only)
1.186 schwarze 989: {
1.197 schwarze 990: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
991: const char synr[] = "SYNOPSIS";
992:
993: FILE *stream;
1.257 schwarze 994: char *line, *cp;
995: size_t linesz;
1.277 schwarze 996: ssize_t len, written;
1.329 schwarze 997: int lno, print;
1.210 schwarze 998:
1.329 schwarze 999: stream = NULL;
1.257 schwarze 1000: line = NULL;
1001: linesz = 0;
1.197 schwarze 1002:
1.277 schwarze 1003: if (fflush(stdout) == EOF) {
1.329 schwarze 1004: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
1005: goto done;
1.277 schwarze 1006: }
1.197 schwarze 1007: if ((stream = fdopen(fd, "r")) == NULL) {
1008: close(fd);
1.329 schwarze 1009: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
1010: goto done;
1.197 schwarze 1011: }
1.186 schwarze 1012:
1.329 schwarze 1013: lno = print = 0;
1.277 schwarze 1014: while ((len = getline(&line, &linesz, stream)) != -1) {
1.329 schwarze 1015: lno++;
1.257 schwarze 1016: cp = line;
1.197 schwarze 1017: if (synopsis_only) {
1018: if (print) {
1.257 schwarze 1019: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 1020: goto done;
1.277 schwarze 1021: while (isspace((unsigned char)*cp)) {
1.257 schwarze 1022: cp++;
1.277 schwarze 1023: len--;
1024: }
1.197 schwarze 1025: } else {
1.257 schwarze 1026: if (strcmp(cp, synb) == 0 ||
1027: strcmp(cp, synr) == 0)
1.197 schwarze 1028: print = 1;
1029: continue;
1030: }
1031: }
1.277 schwarze 1032: for (; len > 0; len -= written) {
1.329 schwarze 1033: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1034: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1035: "%s", strerror(errno));
1036: goto done;
1037: }
1.257 schwarze 1038: }
1.197 schwarze 1039: }
1.329 schwarze 1040: if (ferror(stream))
1041: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.193 schwarze 1042:
1.197 schwarze 1043: done:
1.257 schwarze 1044: free(line);
1.329 schwarze 1045: if (stream != NULL)
1046: fclose(stream);
1.1 kristaps 1047: }
1048:
1049: static int
1.334 ! schwarze 1050: woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1.1 kristaps 1051: {
1.34 kristaps 1052: char *v, *o;
1.293 schwarze 1053: const char *toks[11];
1.1 kristaps 1054:
1.103 schwarze 1055: toks[0] = "stop";
1056: toks[1] = "all";
1.293 schwarze 1057: toks[2] = "base";
1058: toks[3] = "style";
1059: toks[4] = "warning";
1060: toks[5] = "error";
1061: toks[6] = "unsupp";
1062: toks[7] = "fatal";
1063: toks[8] = "openbsd";
1064: toks[9] = "netbsd";
1065: toks[10] = NULL;
1.1 kristaps 1066:
1.34 kristaps 1067: while (*arg) {
1068: o = arg;
1.272 schwarze 1069: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1070: case 0:
1.334 ! schwarze 1071: *wstop = 1;
1.1 kristaps 1072: break;
1.173 schwarze 1073: case 1:
1074: case 2:
1.312 schwarze 1075: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1076: break;
1077: case 3:
1.312 schwarze 1078: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1079: break;
1.290 schwarze 1080: case 4:
1.312 schwarze 1081: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1082: break;
1.290 schwarze 1083: case 5:
1.312 schwarze 1084: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1085: break;
1.290 schwarze 1086: case 6:
1.312 schwarze 1087: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1088: break;
1089: case 7:
1.329 schwarze 1090: mandoc_msg_setmin(MANDOCERR_BADARG);
1.293 schwarze 1091: break;
1092: case 8:
1.312 schwarze 1093: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 ! schwarze 1094: *os_e = MANDOC_OS_OPENBSD;
1.293 schwarze 1095: break;
1096: case 9:
1.312 schwarze 1097: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 ! schwarze 1098: *os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1099: break;
1.1 kristaps 1100: default:
1.329 schwarze 1101: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1102: return -1;
1.1 kristaps 1103: }
1.34 kristaps 1104: }
1.329 schwarze 1105: return 0;
1.333 schwarze 1106: }
1107:
1108: /*
1109: * Wait until moved to the foreground,
1110: * then fork the pager and wait for the user to close it.
1111: */
1112: static void
1113: run_pager(struct tag_files *tag_files)
1114: {
1115: int signum, status;
1116: pid_t man_pgid, tc_pgid;
1117: pid_t pager_pid, wait_pid;
1118:
1119: man_pgid = getpgid(0);
1120: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
1121: man_pgid;
1122: pager_pid = 0;
1123: signum = SIGSTOP;
1124:
1125: for (;;) {
1126: /* Stop here until moved to the foreground. */
1127:
1128: tc_pgid = tcgetpgrp(tag_files->ofd);
1129: if (tc_pgid != man_pgid) {
1130: if (tc_pgid == pager_pid) {
1131: (void)tcsetpgrp(tag_files->ofd, man_pgid);
1132: if (signum == SIGTTIN)
1133: continue;
1134: } else
1135: tag_files->tcpgid = tc_pgid;
1136: kill(0, signum);
1137: continue;
1138: }
1139:
1140: /* Once in the foreground, activate the pager. */
1141:
1142: if (pager_pid) {
1143: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1144: kill(pager_pid, SIGCONT);
1145: } else
1146: pager_pid = spawn_pager(tag_files);
1147:
1148: /* Wait for the pager to stop or exit. */
1149:
1150: while ((wait_pid = waitpid(pager_pid, &status,
1151: WUNTRACED)) == -1 && errno == EINTR)
1152: continue;
1153:
1154: if (wait_pid == -1) {
1155: mandoc_msg(MANDOCERR_WAIT, 0, 0,
1156: "%s", strerror(errno));
1157: break;
1158: }
1159: if (!WIFSTOPPED(status))
1160: break;
1161:
1162: signum = WSTOPSIG(status);
1163: }
1.183 schwarze 1164: }
1165:
1.225 schwarze 1166: static pid_t
1.244 schwarze 1167: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1168: {
1.265 schwarze 1169: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1170: #define MAX_PAGER_ARGS 16
1171: char *argv[MAX_PAGER_ARGS];
1172: const char *pager;
1173: char *cp;
1.322 schwarze 1174: #if HAVE_LESS_T
1.239 schwarze 1175: size_t cmdlen;
1.322 schwarze 1176: #endif
1.309 schwarze 1177: int argc, use_ofn;
1.225 schwarze 1178: pid_t pager_pid;
1.183 schwarze 1179:
1.239 schwarze 1180: pager = getenv("MANPAGER");
1181: if (pager == NULL || *pager == '\0')
1182: pager = getenv("PAGER");
1183: if (pager == NULL || *pager == '\0')
1184: pager = "more -s";
1185: cp = mandoc_strdup(pager);
1186:
1187: /*
1188: * Parse the pager command into words.
1189: * Intentionally do not do anything fancy here.
1190: */
1191:
1192: argc = 0;
1.309 schwarze 1193: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1194: argv[argc++] = cp;
1195: cp = strchr(cp, ' ');
1196: if (cp == NULL)
1197: break;
1198: *cp++ = '\0';
1199: while (*cp == ' ')
1200: cp++;
1201: if (*cp == '\0')
1202: break;
1203: }
1204:
1.268 schwarze 1205: /* For less(1), use the tag file. */
1.239 schwarze 1206:
1.309 schwarze 1207: use_ofn = 1;
1.322 schwarze 1208: #if HAVE_LESS_T
1.332 schwarze 1209: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1210: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1211: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1212: argv[argc++] = mandoc_strdup("-T");
1213: argv[argc++] = tag_files->tfn;
1.309 schwarze 1214: if (tag_files->tagname != NULL) {
1215: argv[argc++] = mandoc_strdup("-t");
1216: argv[argc++] = tag_files->tagname;
1217: use_ofn = 0;
1218: }
1.244 schwarze 1219: }
1.239 schwarze 1220: }
1.322 schwarze 1221: #endif
1.309 schwarze 1222: if (use_ofn)
1223: argv[argc++] = tag_files->ofn;
1.239 schwarze 1224: argv[argc] = NULL;
1225:
1.225 schwarze 1226: switch (pager_pid = fork()) {
1.183 schwarze 1227: case -1:
1.329 schwarze 1228: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1229: exit(mandoc_msg_getrc());
1.183 schwarze 1230: case 0:
1.224 schwarze 1231: break;
1232: default:
1.258 schwarze 1233: (void)setpgid(pager_pid, 0);
1.279 schwarze 1234: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1235: #if HAVE_PLEDGE
1.329 schwarze 1236: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1237: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1238: "%s", strerror(errno));
1239: exit(mandoc_msg_getrc());
1240: }
1.255 schwarze 1241: #endif
1.259 schwarze 1242: tag_files->pager_pid = pager_pid;
1.245 schwarze 1243: return pager_pid;
1.184 schwarze 1244: }
1245:
1.224 schwarze 1246: /* The child process becomes the pager. */
1.184 schwarze 1247:
1.329 schwarze 1248: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1249: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1250: _exit(mandoc_msg_getrc());
1251: }
1.244 schwarze 1252: close(tag_files->ofd);
1.303 schwarze 1253: assert(tag_files->tfd == -1);
1.265 schwarze 1254:
1255: /* Do not start the pager before controlling the terminal. */
1256:
1.279 schwarze 1257: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1258: nanosleep(&timeout, NULL);
1259:
1.184 schwarze 1260: execvp(argv[0], argv);
1.329 schwarze 1261: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1262: _exit(mandoc_msg_getrc());
1.71 kristaps 1263: }
CVSweb