Annotation of mandoc/main.c, Revision 1.339
1.339 ! schwarze 1: /* $Id: main.c,v 1.338 2019/07/28 18:23:17 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. */
1.338 schwarze 123: struct manpage *res; /* Complete list of search results. */
124: struct manpage *resn; /* Search results for one name. */
1.334 schwarze 125: struct mparse *mp; /* Opaque parser object. */
126: const char *conf_file; /* -C: alternate config file. */
127: const char *os_s; /* -I: Operating system for display. */
1.337 schwarze 128: const char *progname, *sec;
1.334 schwarze 129: char *defpaths; /* -M: override manpaths. */
130: char *auxpaths; /* -m: additional manpaths. */
131: char *oarg; /* -O: output option string. */
132: char *tagarg; /* -O tag: default value. */
1.207 schwarze 133: unsigned char *uc;
1.338 schwarze 134: size_t ressz; /* Number of elements in res[]. */
135: size_t resnsz; /* Number of elements in resn[]. */
136: size_t i, ib, ssz;
1.334 schwarze 137: int options; /* Parser options. */
138: int show_usage; /* Invalid argument: give up. */
1.230 schwarze 139: int prio, best_prio;
1.337 schwarze 140: int startdir;
1.180 schwarze 141: int c;
1.334 schwarze 142: enum mandoc_os os_e; /* Check base system conventions. */
143: enum outmode outmode; /* According to command line. */
1.1 kristaps 144:
1.254 schwarze 145: #if HAVE_PROGNAME
146: progname = getprogname();
147: #else
1.219 schwarze 148: if (argc < 1)
1.254 schwarze 149: progname = mandoc_strdup("mandoc");
150: else if ((progname = strrchr(argv[0], '/')) == NULL)
151: progname = argv[0];
1.54 kristaps 152: else
1.254 schwarze 153: ++progname;
154: setprogname(progname);
1.247 schwarze 155: #endif
1.203 schwarze 156:
1.317 schwarze 157: mandoc_msg_setoutfile(stderr);
1.254 schwarze 158: if (strncmp(progname, "mandocdb", 8) == 0 ||
159: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 160: return mandocdb(argc, argv);
1.179 schwarze 161:
1.255 schwarze 162: #if HAVE_PLEDGE
1.329 schwarze 163: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
164: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
165: return mandoc_msg_getrc();
166: }
1.269 kristaps 167: #endif
168: #if HAVE_SANDBOX_INIT
169: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
170: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 171: #endif
172:
1.180 schwarze 173: /* Search options. */
174:
1.229 schwarze 175: memset(&conf, 0, sizeof(conf));
1.334 schwarze 176: conf_file = NULL;
177: defpaths = auxpaths = NULL;
1.180 schwarze 178:
179: memset(&search, 0, sizeof(struct mansearch));
180: search.outkey = "Nd";
1.282 schwarze 181: oarg = NULL;
1.180 schwarze 182:
1.254 schwarze 183: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 184: search.argmode = ARG_NAME;
1.254 schwarze 185: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 186: search.argmode = ARG_EXPR;
1.254 schwarze 187: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 188: search.argmode = ARG_WORD;
1.254 schwarze 189: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 190: search.argmode = ARG_NAME;
1.180 schwarze 191: else
192: search.argmode = ARG_FILE;
193:
1.335 schwarze 194: /* Parser options. */
1.54 kristaps 195:
1.335 schwarze 196: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.334 schwarze 197: os_e = MANDOC_OS_OTHER;
198: os_s = NULL;
1.335 schwarze 199:
200: /* Formatter options. */
201:
202: memset(&outst, 0, sizeof(outst));
1.336 schwarze 203: outst.tag_files = NULL;
1.335 schwarze 204: outst.outtype = OUTT_LOCALE;
1.336 schwarze 205: outst.use_pager = 1;
1.19 kristaps 206:
1.180 schwarze 207: show_usage = 0;
1.181 schwarze 208: outmode = OUTMODE_DEF;
1.183 schwarze 209:
1.289 schwarze 210: while ((c = getopt(argc, argv,
211: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
212: if (c == 'i' && search.argmode == ARG_EXPR) {
213: optind--;
214: break;
215: }
1.1 kristaps 216: switch (c) {
1.181 schwarze 217: case 'a':
218: outmode = OUTMODE_ALL;
219: break;
1.180 schwarze 220: case 'C':
221: conf_file = optarg;
222: break;
1.183 schwarze 223: case 'c':
1.336 schwarze 224: outst.use_pager = 0;
1.183 schwarze 225: break;
1.180 schwarze 226: case 'f':
227: search.argmode = ARG_WORD;
228: break;
1.190 schwarze 229: case 'h':
1.230 schwarze 230: conf.output.synopsisonly = 1;
1.336 schwarze 231: outst.use_pager = 0;
1.190 schwarze 232: outmode = OUTMODE_ALL;
233: break;
1.173 schwarze 234: case 'I':
1.329 schwarze 235: if (strncmp(optarg, "os=", 3) != 0) {
236: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
237: "-I %s", optarg);
238: return mandoc_msg_getrc();
1.166 schwarze 239: }
1.334 schwarze 240: if (os_s != NULL) {
1.329 schwarze 241: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
242: "-I %s", optarg);
243: return mandoc_msg_getrc();
1.166 schwarze 244: }
1.334 schwarze 245: os_s = optarg + 3;
1.181 schwarze 246: break;
1.194 schwarze 247: case 'K':
1.329 schwarze 248: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
249: if (strcmp(optarg, "utf-8") == 0)
250: options |= MPARSE_UTF8;
251: else if (strcmp(optarg, "iso-8859-1") == 0)
252: options |= MPARSE_LATIN1;
253: else if (strcmp(optarg, "us-ascii") != 0) {
254: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
255: "-K %s", optarg);
256: return mandoc_msg_getrc();
257: }
1.194 schwarze 258: break;
1.180 schwarze 259: case 'k':
260: search.argmode = ARG_EXPR;
261: break;
1.188 schwarze 262: case 'l':
263: search.argmode = ARG_FILE;
264: outmode = OUTMODE_ALL;
265: break;
1.180 schwarze 266: case 'M':
267: defpaths = optarg;
268: break;
1.173 schwarze 269: case 'm':
1.180 schwarze 270: auxpaths = optarg;
1.10 kristaps 271: break;
1.173 schwarze 272: case 'O':
1.282 schwarze 273: oarg = optarg;
1.44 kristaps 274: break;
1.180 schwarze 275: case 'S':
276: search.arch = optarg;
277: break;
278: case 's':
279: search.sec = optarg;
280: break;
1.173 schwarze 281: case 'T':
1.329 schwarze 282: if (strcmp(optarg, "ascii") == 0)
1.335 schwarze 283: outst.outtype = OUTT_ASCII;
1.329 schwarze 284: else if (strcmp(optarg, "lint") == 0) {
1.335 schwarze 285: outst.outtype = OUTT_LINT;
1.329 schwarze 286: mandoc_msg_setoutfile(stdout);
287: mandoc_msg_setmin(MANDOCERR_BASE);
288: } else if (strcmp(optarg, "tree") == 0)
1.335 schwarze 289: outst.outtype = OUTT_TREE;
1.329 schwarze 290: else if (strcmp(optarg, "man") == 0)
1.335 schwarze 291: outst.outtype = OUTT_MAN;
1.329 schwarze 292: else if (strcmp(optarg, "html") == 0)
1.335 schwarze 293: outst.outtype = OUTT_HTML;
1.329 schwarze 294: else if (strcmp(optarg, "markdown") == 0)
1.335 schwarze 295: outst.outtype = OUTT_MARKDOWN;
1.329 schwarze 296: else if (strcmp(optarg, "utf8") == 0)
1.335 schwarze 297: outst.outtype = OUTT_UTF8;
1.329 schwarze 298: else if (strcmp(optarg, "locale") == 0)
1.335 schwarze 299: outst.outtype = OUTT_LOCALE;
1.329 schwarze 300: else if (strcmp(optarg, "ps") == 0)
1.335 schwarze 301: outst.outtype = OUTT_PS;
1.329 schwarze 302: else if (strcmp(optarg, "pdf") == 0)
1.335 schwarze 303: outst.outtype = OUTT_PDF;
1.329 schwarze 304: else {
305: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
306: "-T %s", optarg);
307: return mandoc_msg_getrc();
308: }
1.1 kristaps 309: break;
1.173 schwarze 310: case 'W':
1.335 schwarze 311: if (woptions(optarg, &os_e, &outst.wstop) == -1)
1.329 schwarze 312: return mandoc_msg_getrc();
1.1 kristaps 313: break;
1.181 schwarze 314: case 'w':
315: outmode = OUTMODE_FLN;
316: break;
1.1 kristaps 317: default:
1.180 schwarze 318: show_usage = 1;
319: break;
1.1 kristaps 320: }
1.180 schwarze 321: }
322:
323: if (show_usage)
324: usage(search.argmode);
325:
1.185 schwarze 326: /* Postprocess options. */
327:
1.181 schwarze 328: if (outmode == OUTMODE_DEF) {
329: switch (search.argmode) {
330: case ARG_FILE:
331: outmode = OUTMODE_ALL;
1.336 schwarze 332: outst.use_pager = 0;
1.181 schwarze 333: break;
334: case ARG_NAME:
335: outmode = OUTMODE_ONE;
336: break;
337: default:
338: outmode = OUTMODE_LST;
339: break;
1.282 schwarze 340: }
341: }
342:
343: if (oarg != NULL) {
344: if (outmode == OUTMODE_LST)
345: search.outkey = oarg;
346: else {
347: while (oarg != NULL) {
348: if (manconf_output(&conf.output,
1.327 schwarze 349: strsep(&oarg, ","), 0) == -1)
1.329 schwarze 350: return mandoc_msg_getrc();
1.282 schwarze 351: }
1.181 schwarze 352: }
353: }
354:
1.335 schwarze 355: if (outst.outtype != OUTT_TREE || conf.output.noval == 0)
1.315 schwarze 356: options |= MPARSE_VALIDATE;
357:
1.246 schwarze 358: if (outmode == OUTMODE_FLN ||
359: outmode == OUTMODE_LST ||
360: !isatty(STDOUT_FILENO))
1.336 schwarze 361: outst.use_pager = 0;
1.304 schwarze 362:
1.336 schwarze 363: if (outst.use_pager &&
1.304 schwarze 364: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 365: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
366: ws.ws_col > 1) {
1.304 schwarze 367: if (conf.output.width == 0 && ws.ws_col < 79)
368: conf.output.width = ws.ws_col - 1;
369: if (conf.output.indent == 0 && ws.ws_col < 66)
370: conf.output.indent = 3;
371: }
1.246 schwarze 372:
1.255 schwarze 373: #if HAVE_PLEDGE
1.336 schwarze 374: if (outst.use_pager == 0) {
1.329 schwarze 375: if (pledge("stdio rpath", NULL) == -1) {
376: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
377: "%s", strerror(errno));
378: return mandoc_msg_getrc();
379: }
380: }
1.255 schwarze 381: #endif
382:
1.185 schwarze 383: /* Parse arguments. */
384:
1.219 schwarze 385: if (argc > 0) {
386: argc -= optind;
387: argv += optind;
388: }
1.185 schwarze 389:
1.202 schwarze 390: /*
1.338 schwarze 391: * Quirks for help(1) and man(1),
392: * in particular for a section argument without -s.
1.202 schwarze 393: */
394:
395: if (search.argmode == ARG_NAME) {
1.254 schwarze 396: if (*progname == 'h') {
1.202 schwarze 397: if (argc == 0) {
398: argv = help_argv;
399: argc = 1;
400: }
1.211 schwarze 401: } else if (argc > 1 &&
1.223 kristaps 402: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 403: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.324 schwarze 404: isalpha(uc[1]))) ||
1.207 schwarze 405: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 406: search.sec = (char *)uc;
1.202 schwarze 407: argv++;
408: argc--;
409: }
1.216 schwarze 410: if (search.arch == NULL)
411: search.arch = getenv("MACHINE");
1.223 kristaps 412: #ifdef MACHINE
1.216 schwarze 413: if (search.arch == NULL)
414: search.arch = MACHINE;
1.223 kristaps 415: #endif
1.338 schwarze 416: if (outmode == OUTMODE_ONE)
417: search.firstmatch = 1;
1.185 schwarze 418: }
1.182 schwarze 419:
1.316 schwarze 420: /*
421: * Use the first argument for -O tag in addition to
422: * using it as a search term for man(1) or apropos(1).
423: */
424:
425: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
426: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
427: strchr(*argv, '=') : NULL;
428: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
429: }
430:
1.338 schwarze 431: /* Read the configuration file. */
1.180 schwarze 432:
1.338 schwarze 433: if (search.argmode != ARG_FILE)
434: manconf_parse(&conf, conf_file, defpaths, auxpaths);
1.182 schwarze 435:
1.338 schwarze 436: /* man(1): Resolve each name individually. */
1.182 schwarze 437:
1.338 schwarze 438: if (search.argmode == ARG_NAME) {
439: if (argc < 1)
440: usage(ARG_NAME);
441: for (res = NULL, ressz = 0; argc > 0; argc--, argv++) {
442: (void)mansearch(&search, &conf.manpath,
443: 1, argv, &resn, &resnsz);
444: if (resnsz == 0)
445: (void)fs_search(&search, &conf.manpath,
446: 1, argv, &resn, &resnsz);
447: if (resnsz == 0) {
448: if (strchr(*argv, '/') == NULL) {
449: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.305 schwarze 450: continue;
1.338 schwarze 451: }
452: if (access(*argv, R_OK) == -1) {
453: mandoc_msg_setinfilename(*argv);
1.329 schwarze 454: mandoc_msg(MANDOCERR_BADARG_BAD,
455: 0, 0, "%s", strerror(errno));
456: mandoc_msg_setinfilename(NULL);
1.305 schwarze 457: continue;
458: }
1.338 schwarze 459: resnsz = 1;
460: resn = mandoc_calloc(resnsz, sizeof(*res));
461: resn->file = mandoc_strdup(*argv);
462: resn->ipath = SIZE_MAX;
463: resn->form = FORM_SRC;
464: }
465: if (outmode != OUTMODE_ONE || resnsz == 1) {
1.305 schwarze 466: res = mandoc_reallocarray(res,
1.338 schwarze 467: ressz + resnsz, sizeof(*res));
468: memcpy(res + ressz, resn,
469: sizeof(*resn) * resnsz);
470: ressz += resnsz;
471: continue;
1.305 schwarze 472: }
1.187 schwarze 473:
1.338 schwarze 474: /* Search for the best section. */
1.182 schwarze 475:
1.325 schwarze 476: best_prio = 40;
1.338 schwarze 477: for (ib = i = 0; i < resnsz; i++) {
478: sec = resn[i].file;
1.264 schwarze 479: sec += strcspn(sec, "123456789");
480: if (sec[0] == '\0')
1.325 schwarze 481: continue; /* No section at all. */
1.264 schwarze 482: prio = sec_prios[sec[0] - '1'];
1.325 schwarze 483: if (search.sec != NULL) {
484: ssz = strlen(search.sec);
485: if (strncmp(sec, search.sec, ssz) == 0)
486: sec += ssz;
487: } else
488: sec++; /* Prefer without suffix. */
489: if (*sec != '/')
490: prio += 10; /* Wrong dir name. */
491: if (search.sec != NULL &&
492: (strlen(sec) <= ssz + 3 ||
493: strcmp(sec + strlen(sec) - ssz,
494: search.sec) != 0))
495: prio += 20; /* Wrong file ext. */
1.182 schwarze 496: if (prio >= best_prio)
497: continue;
498: best_prio = prio;
1.338 schwarze 499: ib = i;
1.182 schwarze 500: }
1.338 schwarze 501: res = mandoc_reallocarray(res, ressz + 1,
502: sizeof(*res));
503: memcpy(res + ressz++, resn + ib, sizeof(*resn));
1.181 schwarze 504: }
1.182 schwarze 505:
1.338 schwarze 506: /* apropos(1), whatis(1): Process the full search expression. */
507:
508: } else if (search.argmode != ARG_FILE) {
509: if (mansearch(&search, &conf.manpath,
510: argc, argv, &res, &ressz) == 0)
511: usage(search.argmode);
1.182 schwarze 512:
1.338 schwarze 513: if (ressz == 0) {
514: warnx("nothing appropriate");
515: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.182 schwarze 516: goto out;
1.338 schwarze 517: }
518:
519: /* mandoc(1): Take command line arguments as file names. */
520:
1.337 schwarze 521: } else {
1.338 schwarze 522: ressz = argc > 0 ? argc : 1;
523: res = mandoc_calloc(ressz, sizeof(*res));
524: for (i = 0; i < ressz; i++) {
1.337 schwarze 525: if (argc > 0)
526: res[i].file = mandoc_strdup(argv[i]);
527: res[i].ipath = SIZE_MAX;
528: res[i].form = FORM_SRC;
529: }
1.180 schwarze 530: }
531:
1.338 schwarze 532: switch (outmode) {
533: case OUTMODE_FLN:
534: for (i = 0; i < ressz; i++)
535: puts(res[i].file);
536: goto out;
537: case OUTMODE_LST:
538: for (i = 0; i < ressz; i++)
539: printf("%s - %s\n", res[i].names,
540: res[i].output == NULL ? "" :
541: res[i].output);
542: goto out;
543: default:
544: break;
545: }
1.255 schwarze 546:
1.329 schwarze 547: if (search.argmode == ARG_FILE && auxpaths != NULL) {
548: if (strcmp(auxpaths, "doc") == 0)
549: options |= MPARSE_MDOC;
550: else if (strcmp(auxpaths, "an") == 0)
551: options |= MPARSE_MAN;
552: }
1.241 schwarze 553:
1.249 schwarze 554: mchars_alloc();
1.334 schwarze 555: mp = mparse_alloc(options, os_e, os_s);
1.154 kristaps 556:
1.305 schwarze 557: /*
558: * Remember the original working directory, if possible.
559: * This will be needed if some names on the command line
560: * are page names and some are relative file names.
561: * Do not error out if the current directory is not
562: * readable: Maybe it won't be needed after all.
563: */
564: startdir = open(".", O_RDONLY | O_DIRECTORY);
565:
1.338 schwarze 566: for (i = 0; i < ressz; i++) {
567: process_onefile(mp, res + i, startdir, &outst, &conf);
1.335 schwarze 568: if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 569: break;
1.1 kristaps 570: }
1.305 schwarze 571: if (startdir != -1) {
572: (void)fchdir(startdir);
573: close(startdir);
574: }
1.1 kristaps 575:
1.335 schwarze 576: if (outst.outdata != NULL) {
577: switch (outst.outtype) {
1.252 schwarze 578: case OUTT_HTML:
1.335 schwarze 579: html_free(outst.outdata);
1.252 schwarze 580: break;
581: case OUTT_UTF8:
582: case OUTT_LOCALE:
583: case OUTT_ASCII:
1.335 schwarze 584: ascii_free(outst.outdata);
1.252 schwarze 585: break;
586: case OUTT_PDF:
587: case OUTT_PS:
1.335 schwarze 588: pspdf_free(outst.outdata);
1.252 schwarze 589: break;
590: default:
591: break;
592: }
1.250 schwarze 593: }
1.294 schwarze 594: mandoc_xr_free();
1.334 schwarze 595: mparse_free(mp);
1.249 schwarze 596: mchars_free();
1.182 schwarze 597:
598: out:
1.338 schwarze 599: mansearch_free(res, ressz);
1.337 schwarze 600: if (search.argmode != ARG_FILE)
1.229 schwarze 601: manconf_free(&conf);
1.1 kristaps 602:
1.336 schwarze 603: if (outst.tag_files != NULL) {
1.225 schwarze 604: fclose(stdout);
1.239 schwarze 605: tag_write();
1.336 schwarze 606: run_pager(outst.tag_files);
1.239 schwarze 607: tag_unlink();
1.337 schwarze 608: } else if (outst.had_output && outst.outtype != OUTT_LINT)
1.330 schwarze 609: mandoc_msg_summary();
610:
1.312 schwarze 611: return (int)mandoc_msg_getrc();
1.1 kristaps 612: }
613:
1.55 kristaps 614: static void
1.180 schwarze 615: usage(enum argmode argmode)
1.1 kristaps 616: {
1.180 schwarze 617: switch (argmode) {
618: case ARG_FILE:
1.287 schwarze 619: fputs("usage: mandoc [-ac] [-I os=name] "
620: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 621: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 622: break;
623: case ARG_NAME:
1.287 schwarze 624: fputs("usage: man [-acfhklw] [-C file] [-M path] "
625: "[-m path] [-S subsection]\n"
626: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 627: break;
628: case ARG_WORD:
1.287 schwarze 629: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 630: "[-M path] [-m path] [-O outkey] [-S arch]\n"
631: "\t [-s section] name ...\n", stderr);
1.180 schwarze 632: break;
633: case ARG_EXPR:
1.287 schwarze 634: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 635: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 636: "\t [-s section] expression ...\n", stderr);
637: break;
638: }
1.105 kristaps 639: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 640: }
1.213 schwarze 641:
642: static int
643: fs_lookup(const struct manpaths *paths, size_t ipath,
644: const char *sec, const char *arch, const char *name,
645: struct manpage **res, size_t *ressz)
646: {
1.326 schwarze 647: struct stat sb;
1.222 schwarze 648: glob_t globinfo;
1.213 schwarze 649: struct manpage *page;
650: char *file;
1.274 schwarze 651: int globres;
652: enum form form;
1.213 schwarze 653:
1.222 schwarze 654: form = FORM_SRC;
1.213 schwarze 655: mandoc_asprintf(&file, "%s/man%s/%s.%s",
656: paths->paths[ipath], sec, name, sec);
1.326 schwarze 657: if (stat(file, &sb) != -1)
1.213 schwarze 658: goto found;
659: free(file);
660:
661: mandoc_asprintf(&file, "%s/cat%s/%s.0",
662: paths->paths[ipath], sec, name);
1.326 schwarze 663: if (stat(file, &sb) != -1) {
1.213 schwarze 664: form = FORM_CAT;
665: goto found;
666: }
667: free(file);
668:
669: if (arch != NULL) {
670: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
671: paths->paths[ipath], sec, arch, name, sec);
1.326 schwarze 672: if (stat(file, &sb) != -1)
1.213 schwarze 673: goto found;
674: free(file);
675: }
1.222 schwarze 676:
1.240 schwarze 677: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 678: paths->paths[ipath], sec, name);
679: globres = glob(file, 0, NULL, &globinfo);
680: if (globres != 0 && globres != GLOB_NOMATCH)
1.329 schwarze 681: mandoc_msg(MANDOCERR_GLOB, 0, 0,
682: "%s: %s", file, strerror(errno));
1.222 schwarze 683: free(file);
684: if (globres == 0)
685: file = mandoc_strdup(*globinfo.gl_pathv);
686: globfree(&globinfo);
1.326 schwarze 687: if (globres == 0) {
688: if (stat(file, &sb) != -1)
689: goto found;
690: free(file);
691: }
1.296 schwarze 692: if (res != NULL || ipath + 1 != paths->sz)
1.329 schwarze 693: return -1;
1.213 schwarze 694:
1.296 schwarze 695: mandoc_asprintf(&file, "%s.%s", name, sec);
1.326 schwarze 696: globres = stat(file, &sb);
1.296 schwarze 697: free(file);
1.329 schwarze 698: return globres;
1.296 schwarze 699:
1.213 schwarze 700: found:
1.266 schwarze 701: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
702: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 703: if (res == NULL) {
704: free(file);
1.329 schwarze 705: return 0;
1.296 schwarze 706: }
1.329 schwarze 707: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.213 schwarze 708: page = *res + (*ressz - 1);
709: page->file = file;
710: page->names = NULL;
711: page->output = NULL;
1.323 schwarze 712: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 713: page->ipath = ipath;
714: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
715: page->form = form;
1.329 schwarze 716: return 0;
1.213 schwarze 717: }
718:
1.295 schwarze 719: static int
1.213 schwarze 720: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
721: int argc, char **argv, struct manpage **res, size_t *ressz)
722: {
723: const char *const sections[] =
1.264 schwarze 724: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 725: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
726:
727: size_t ipath, isec, lastsz;
728:
729: assert(cfg->argmode == ARG_NAME);
730:
1.295 schwarze 731: if (res != NULL)
732: *res = NULL;
1.213 schwarze 733: *ressz = lastsz = 0;
734: while (argc) {
735: for (ipath = 0; ipath < paths->sz; ipath++) {
736: if (cfg->sec != NULL) {
737: if (fs_lookup(paths, ipath, cfg->sec,
1.329 schwarze 738: cfg->arch, *argv, res, ressz) != -1 &&
1.213 schwarze 739: cfg->firstmatch)
1.329 schwarze 740: return 0;
1.213 schwarze 741: } else for (isec = 0; isec < nsec; isec++)
742: if (fs_lookup(paths, ipath, sections[isec],
1.329 schwarze 743: cfg->arch, *argv, res, ressz) != -1 &&
1.213 schwarze 744: cfg->firstmatch)
1.329 schwarze 745: return 0;
1.213 schwarze 746: }
1.305 schwarze 747: if (res != NULL && *ressz == lastsz &&
1.307 schwarze 748: strchr(*argv, '/') == NULL) {
1.320 schwarze 749: if (cfg->arch != NULL &&
750: arch_valid(cfg->arch, OSENUM) == 0)
751: warnx("Unknown architecture \"%s\".",
752: cfg->arch);
753: else if (cfg->sec == NULL)
1.307 schwarze 754: warnx("No entry for %s in the manual.",
755: *argv);
756: else
757: warnx("No entry for %s in section %s "
758: "of the manual.", *argv, cfg->sec);
759: }
1.213 schwarze 760: lastsz = *ressz;
761: argv++;
762: argc--;
763: }
1.329 schwarze 764: return -1;
1.213 schwarze 765: }
1.68 joerg 766:
1.64 kristaps 767: static void
1.337 schwarze 768: process_onefile(struct mparse *mp, struct manpage *resp, int startdir,
769: struct outstate *outst, struct manconf *conf)
770: {
771: int fd;
772:
773: /*
774: * Changing directories is not needed in ARG_FILE mode.
775: * Do it on a best-effort basis. Even in case of
776: * failure, some functionality may still work.
777: */
778: if (resp->ipath != SIZE_MAX)
779: (void)chdir(conf->manpath.paths[resp->ipath]);
780: else if (startdir != -1)
781: (void)fchdir(startdir);
782:
783: mandoc_msg_setinfilename(resp->file);
784: if (resp->file != NULL) {
785: if ((fd = mparse_open(mp, resp->file)) == -1) {
786: mandoc_msg(resp->ipath == SIZE_MAX ?
787: MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
788: 0, 0, "%s", strerror(errno));
789: mandoc_msg_setinfilename(NULL);
790: return;
791: }
792: } else
793: fd = STDIN_FILENO;
794:
795: if (outst->use_pager) {
796: outst->use_pager = 0;
797: outst->tag_files = tag_init(conf->output.tag);
798: }
799:
800: if (outst->had_output && outst->outtype <= OUTT_UTF8) {
801: if (outst->outdata == NULL)
802: outdata_alloc(outst, &conf->output);
803: terminal_sepline(outst->outdata);
804: }
805:
806: if (resp->form == FORM_SRC)
807: parse(mp, fd, resp->file, outst, &conf->output);
808: else {
809: passthrough(fd, conf->output.synopsisonly);
810: outst->had_output = 1;
811: }
812:
813: if (ferror(stdout)) {
814: if (outst->tag_files != NULL) {
815: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
816: outst->tag_files->ofn, strerror(errno));
817: tag_unlink();
818: outst->tag_files = NULL;
819: } else
820: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
821: strerror(errno));
822: }
823: mandoc_msg_setinfilename(NULL);
824: }
825:
826: static void
1.335 schwarze 827: parse(struct mparse *mp, int fd, const char *file,
828: struct outstate *outst, struct manoutput *outconf)
1.1 kristaps 829: {
1.337 schwarze 830: static int previous;
831: struct roff_meta *meta;
1.112 kristaps 832:
1.337 schwarze 833: assert(fd >= 0);
834: if (file == NULL)
835: file = "<stdin>";
1.112 kristaps 836:
1.337 schwarze 837: if (previous)
838: mparse_reset(mp);
839: else
840: previous = 1;
1.112 kristaps 841:
1.334 schwarze 842: mparse_readfd(mp, fd, file);
1.261 schwarze 843: if (fd != STDIN_FILENO)
844: close(fd);
1.112 kristaps 845:
1.1 kristaps 846: /*
1.154 kristaps 847: * With -Wstop and warnings or errors of at least the requested
848: * level, do not produce output.
1.1 kristaps 849: */
850:
1.335 schwarze 851: if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 852: return;
1.111 kristaps 853:
1.335 schwarze 854: if (outst->outdata == NULL)
855: outdata_alloc(outst, outconf);
856: else if (outst->outtype == OUTT_HTML)
857: html_reset(outst);
1.111 kristaps 858:
1.315 schwarze 859: mandoc_xr_reset();
1.334 schwarze 860: meta = mparse_result(mp);
1.250 schwarze 861:
862: /* Execute the out device, if it exists. */
863:
1.337 schwarze 864: outst->had_output = 1;
1.315 schwarze 865: if (meta->macroset == MACROSET_MDOC) {
1.335 schwarze 866: switch (outst->outtype) {
1.173 schwarze 867: case OUTT_HTML:
1.335 schwarze 868: html_mdoc(outst->outdata, meta);
1.111 kristaps 869: break;
1.173 schwarze 870: case OUTT_TREE:
1.335 schwarze 871: tree_mdoc(outst->outdata, meta);
1.111 kristaps 872: break;
1.173 schwarze 873: case OUTT_MAN:
1.335 schwarze 874: man_mdoc(outst->outdata, meta);
1.164 schwarze 875: break;
1.173 schwarze 876: case OUTT_PDF:
877: case OUTT_ASCII:
878: case OUTT_UTF8:
879: case OUTT_LOCALE:
880: case OUTT_PS:
1.335 schwarze 881: terminal_mdoc(outst->outdata, meta);
1.250 schwarze 882: break;
1.285 schwarze 883: case OUTT_MARKDOWN:
1.335 schwarze 884: markdown_mdoc(outst->outdata, meta);
1.285 schwarze 885: break;
1.250 schwarze 886: default:
887: break;
888: }
889: }
1.315 schwarze 890: if (meta->macroset == MACROSET_MAN) {
1.335 schwarze 891: switch (outst->outtype) {
1.250 schwarze 892: case OUTT_HTML:
1.335 schwarze 893: html_man(outst->outdata, meta);
1.250 schwarze 894: break;
895: case OUTT_TREE:
1.335 schwarze 896: tree_man(outst->outdata, meta);
1.250 schwarze 897: break;
898: case OUTT_MAN:
1.334 schwarze 899: mparse_copy(mp);
1.250 schwarze 900: break;
901: case OUTT_PDF:
902: case OUTT_ASCII:
903: case OUTT_UTF8:
904: case OUTT_LOCALE:
905: case OUTT_PS:
1.335 schwarze 906: terminal_man(outst->outdata, meta);
1.111 kristaps 907: break;
908: default:
909: break;
910: }
1.276 schwarze 911: }
1.312 schwarze 912: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
913: check_xr();
1.294 schwarze 914: }
915:
916: static void
1.312 schwarze 917: check_xr(void)
1.294 schwarze 918: {
919: static struct manpaths paths;
920: struct mansearch search;
921: struct mandoc_xr *xr;
922: size_t sz;
923:
924: if (paths.sz == 0)
925: manpath_base(&paths);
926:
927: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 928: if (xr->line == -1)
929: continue;
1.294 schwarze 930: search.arch = NULL;
931: search.sec = xr->sec;
932: search.outkey = NULL;
933: search.argmode = ARG_NAME;
934: search.firstmatch = 1;
935: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 936: continue;
1.329 schwarze 937: if (fs_search(&search, &paths, 1, &xr->name, NULL, &sz) != -1)
1.294 schwarze 938: continue;
1.298 schwarze 939: if (xr->count == 1)
1.313 schwarze 940: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
941: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 942: else
1.313 schwarze 943: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
944: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 945: xr->name, xr->sec, xr->count);
1.294 schwarze 946: }
1.276 schwarze 947: }
948:
949: static void
1.335 schwarze 950: outdata_alloc(struct outstate *outst, struct manoutput *outconf)
1.276 schwarze 951: {
1.335 schwarze 952: switch (outst->outtype) {
1.276 schwarze 953: case OUTT_HTML:
1.335 schwarze 954: outst->outdata = html_alloc(outconf);
1.276 schwarze 955: break;
956: case OUTT_UTF8:
1.335 schwarze 957: outst->outdata = utf8_alloc(outconf);
1.276 schwarze 958: break;
959: case OUTT_LOCALE:
1.335 schwarze 960: outst->outdata = locale_alloc(outconf);
1.276 schwarze 961: break;
962: case OUTT_ASCII:
1.335 schwarze 963: outst->outdata = ascii_alloc(outconf);
1.276 schwarze 964: break;
965: case OUTT_PDF:
1.335 schwarze 966: outst->outdata = pdf_alloc(outconf);
1.276 schwarze 967: break;
968: case OUTT_PS:
1.335 schwarze 969: outst->outdata = ps_alloc(outconf);
1.276 schwarze 970: break;
971: default:
972: break;
1.111 kristaps 973: }
1.186 schwarze 974: }
975:
1.227 schwarze 976: static void
1.329 schwarze 977: passthrough(int fd, int synopsis_only)
1.186 schwarze 978: {
1.197 schwarze 979: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
980: const char synr[] = "SYNOPSIS";
981:
982: FILE *stream;
1.257 schwarze 983: char *line, *cp;
984: size_t linesz;
1.277 schwarze 985: ssize_t len, written;
1.329 schwarze 986: int lno, print;
1.210 schwarze 987:
1.329 schwarze 988: stream = NULL;
1.257 schwarze 989: line = NULL;
990: linesz = 0;
1.197 schwarze 991:
1.277 schwarze 992: if (fflush(stdout) == EOF) {
1.329 schwarze 993: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
994: goto done;
1.277 schwarze 995: }
1.197 schwarze 996: if ((stream = fdopen(fd, "r")) == NULL) {
997: close(fd);
1.329 schwarze 998: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
999: goto done;
1.197 schwarze 1000: }
1.186 schwarze 1001:
1.329 schwarze 1002: lno = print = 0;
1.277 schwarze 1003: while ((len = getline(&line, &linesz, stream)) != -1) {
1.329 schwarze 1004: lno++;
1.257 schwarze 1005: cp = line;
1.197 schwarze 1006: if (synopsis_only) {
1007: if (print) {
1.257 schwarze 1008: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 1009: goto done;
1.277 schwarze 1010: while (isspace((unsigned char)*cp)) {
1.257 schwarze 1011: cp++;
1.277 schwarze 1012: len--;
1013: }
1.197 schwarze 1014: } else {
1.257 schwarze 1015: if (strcmp(cp, synb) == 0 ||
1016: strcmp(cp, synr) == 0)
1.197 schwarze 1017: print = 1;
1018: continue;
1019: }
1020: }
1.277 schwarze 1021: for (; len > 0; len -= written) {
1.329 schwarze 1022: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1023: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1024: "%s", strerror(errno));
1025: goto done;
1026: }
1.257 schwarze 1027: }
1.197 schwarze 1028: }
1.329 schwarze 1029: if (ferror(stream))
1030: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.193 schwarze 1031:
1.197 schwarze 1032: done:
1.257 schwarze 1033: free(line);
1.329 schwarze 1034: if (stream != NULL)
1035: fclose(stream);
1.1 kristaps 1036: }
1037:
1038: static int
1.334 schwarze 1039: woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1.1 kristaps 1040: {
1.34 kristaps 1041: char *v, *o;
1.293 schwarze 1042: const char *toks[11];
1.1 kristaps 1043:
1.103 schwarze 1044: toks[0] = "stop";
1045: toks[1] = "all";
1.293 schwarze 1046: toks[2] = "base";
1047: toks[3] = "style";
1048: toks[4] = "warning";
1049: toks[5] = "error";
1050: toks[6] = "unsupp";
1051: toks[7] = "fatal";
1052: toks[8] = "openbsd";
1053: toks[9] = "netbsd";
1054: toks[10] = NULL;
1.1 kristaps 1055:
1.34 kristaps 1056: while (*arg) {
1057: o = arg;
1.272 schwarze 1058: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1059: case 0:
1.334 schwarze 1060: *wstop = 1;
1.1 kristaps 1061: break;
1.173 schwarze 1062: case 1:
1063: case 2:
1.312 schwarze 1064: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1065: break;
1066: case 3:
1.312 schwarze 1067: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1068: break;
1.290 schwarze 1069: case 4:
1.312 schwarze 1070: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1071: break;
1.290 schwarze 1072: case 5:
1.312 schwarze 1073: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1074: break;
1.290 schwarze 1075: case 6:
1.312 schwarze 1076: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1077: break;
1078: case 7:
1.329 schwarze 1079: mandoc_msg_setmin(MANDOCERR_BADARG);
1.293 schwarze 1080: break;
1081: case 8:
1.312 schwarze 1082: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1083: *os_e = MANDOC_OS_OPENBSD;
1.293 schwarze 1084: break;
1085: case 9:
1.312 schwarze 1086: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1087: *os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1088: break;
1.1 kristaps 1089: default:
1.329 schwarze 1090: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1091: return -1;
1.1 kristaps 1092: }
1.34 kristaps 1093: }
1.329 schwarze 1094: return 0;
1.333 schwarze 1095: }
1096:
1097: /*
1098: * Wait until moved to the foreground,
1099: * then fork the pager and wait for the user to close it.
1100: */
1101: static void
1102: run_pager(struct tag_files *tag_files)
1103: {
1104: int signum, status;
1105: pid_t man_pgid, tc_pgid;
1106: pid_t pager_pid, wait_pid;
1107:
1108: man_pgid = getpgid(0);
1109: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
1110: man_pgid;
1111: pager_pid = 0;
1112: signum = SIGSTOP;
1113:
1114: for (;;) {
1115: /* Stop here until moved to the foreground. */
1116:
1117: tc_pgid = tcgetpgrp(tag_files->ofd);
1118: if (tc_pgid != man_pgid) {
1119: if (tc_pgid == pager_pid) {
1120: (void)tcsetpgrp(tag_files->ofd, man_pgid);
1121: if (signum == SIGTTIN)
1122: continue;
1123: } else
1124: tag_files->tcpgid = tc_pgid;
1125: kill(0, signum);
1126: continue;
1127: }
1128:
1129: /* Once in the foreground, activate the pager. */
1130:
1131: if (pager_pid) {
1132: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1133: kill(pager_pid, SIGCONT);
1134: } else
1135: pager_pid = spawn_pager(tag_files);
1136:
1137: /* Wait for the pager to stop or exit. */
1138:
1139: while ((wait_pid = waitpid(pager_pid, &status,
1140: WUNTRACED)) == -1 && errno == EINTR)
1141: continue;
1142:
1143: if (wait_pid == -1) {
1144: mandoc_msg(MANDOCERR_WAIT, 0, 0,
1145: "%s", strerror(errno));
1146: break;
1147: }
1148: if (!WIFSTOPPED(status))
1149: break;
1150:
1151: signum = WSTOPSIG(status);
1152: }
1.183 schwarze 1153: }
1154:
1.225 schwarze 1155: static pid_t
1.244 schwarze 1156: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1157: {
1.265 schwarze 1158: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1159: #define MAX_PAGER_ARGS 16
1160: char *argv[MAX_PAGER_ARGS];
1161: const char *pager;
1162: char *cp;
1.322 schwarze 1163: #if HAVE_LESS_T
1.239 schwarze 1164: size_t cmdlen;
1.322 schwarze 1165: #endif
1.309 schwarze 1166: int argc, use_ofn;
1.225 schwarze 1167: pid_t pager_pid;
1.183 schwarze 1168:
1.239 schwarze 1169: pager = getenv("MANPAGER");
1170: if (pager == NULL || *pager == '\0')
1171: pager = getenv("PAGER");
1172: if (pager == NULL || *pager == '\0')
1173: pager = "more -s";
1174: cp = mandoc_strdup(pager);
1175:
1176: /*
1177: * Parse the pager command into words.
1178: * Intentionally do not do anything fancy here.
1179: */
1180:
1181: argc = 0;
1.309 schwarze 1182: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1183: argv[argc++] = cp;
1184: cp = strchr(cp, ' ');
1185: if (cp == NULL)
1186: break;
1187: *cp++ = '\0';
1188: while (*cp == ' ')
1189: cp++;
1190: if (*cp == '\0')
1191: break;
1192: }
1193:
1.268 schwarze 1194: /* For less(1), use the tag file. */
1.239 schwarze 1195:
1.309 schwarze 1196: use_ofn = 1;
1.322 schwarze 1197: #if HAVE_LESS_T
1.332 schwarze 1198: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1199: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1200: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1201: argv[argc++] = mandoc_strdup("-T");
1202: argv[argc++] = tag_files->tfn;
1.309 schwarze 1203: if (tag_files->tagname != NULL) {
1204: argv[argc++] = mandoc_strdup("-t");
1205: argv[argc++] = tag_files->tagname;
1206: use_ofn = 0;
1207: }
1.244 schwarze 1208: }
1.239 schwarze 1209: }
1.322 schwarze 1210: #endif
1.309 schwarze 1211: if (use_ofn)
1212: argv[argc++] = tag_files->ofn;
1.239 schwarze 1213: argv[argc] = NULL;
1214:
1.225 schwarze 1215: switch (pager_pid = fork()) {
1.183 schwarze 1216: case -1:
1.329 schwarze 1217: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1218: exit(mandoc_msg_getrc());
1.183 schwarze 1219: case 0:
1.224 schwarze 1220: break;
1221: default:
1.258 schwarze 1222: (void)setpgid(pager_pid, 0);
1.279 schwarze 1223: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1224: #if HAVE_PLEDGE
1.329 schwarze 1225: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1226: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1227: "%s", strerror(errno));
1228: exit(mandoc_msg_getrc());
1229: }
1.255 schwarze 1230: #endif
1.259 schwarze 1231: tag_files->pager_pid = pager_pid;
1.245 schwarze 1232: return pager_pid;
1.184 schwarze 1233: }
1234:
1.224 schwarze 1235: /* The child process becomes the pager. */
1.184 schwarze 1236:
1.329 schwarze 1237: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1238: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1239: _exit(mandoc_msg_getrc());
1240: }
1.244 schwarze 1241: close(tag_files->ofd);
1.303 schwarze 1242: assert(tag_files->tfd == -1);
1.265 schwarze 1243:
1244: /* Do not start the pager before controlling the terminal. */
1245:
1.279 schwarze 1246: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1247: nanosleep(&timeout, NULL);
1248:
1.184 schwarze 1249: execvp(argv[0], argv);
1.329 schwarze 1250: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1251: _exit(mandoc_msg_getrc());
1.71 kristaps 1252: }
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