Annotation of mandoc/main.c, Revision 1.340
1.340 ! schwarze 1: /* $Id: main.c,v 1.339 2019/07/28 18:36:06 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 *,
1.340 ! schwarze 98: const struct manpaths *, const char *,
1.213 schwarze 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,
1.340 ! schwarze 446: *argv, &resn, &resnsz);
! 447: if (resnsz == 0 && strchr(*argv, '/') == NULL) {
! 448: if (search.arch != NULL &&
! 449: arch_valid(search.arch, OSENUM) == 0)
! 450: warnx("Unknown architecture \"%s\".",
! 451: search.arch);
! 452: else if (search.sec != NULL)
! 453: warnx("No entry for %s in "
! 454: "section %s of the manual.",
! 455: *argv, search.sec);
! 456: else
! 457: warnx("No entry for %s in "
! 458: "the manual.", *argv);
! 459: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
! 460: continue;
! 461: }
1.338 schwarze 462: if (resnsz == 0) {
463: if (access(*argv, R_OK) == -1) {
464: mandoc_msg_setinfilename(*argv);
1.329 schwarze 465: mandoc_msg(MANDOCERR_BADARG_BAD,
466: 0, 0, "%s", strerror(errno));
467: mandoc_msg_setinfilename(NULL);
1.305 schwarze 468: continue;
469: }
1.338 schwarze 470: resnsz = 1;
471: resn = mandoc_calloc(resnsz, sizeof(*res));
472: resn->file = mandoc_strdup(*argv);
473: resn->ipath = SIZE_MAX;
474: resn->form = FORM_SRC;
475: }
476: if (outmode != OUTMODE_ONE || resnsz == 1) {
1.305 schwarze 477: res = mandoc_reallocarray(res,
1.338 schwarze 478: ressz + resnsz, sizeof(*res));
479: memcpy(res + ressz, resn,
480: sizeof(*resn) * resnsz);
481: ressz += resnsz;
482: continue;
1.305 schwarze 483: }
1.187 schwarze 484:
1.338 schwarze 485: /* Search for the best section. */
1.182 schwarze 486:
1.325 schwarze 487: best_prio = 40;
1.338 schwarze 488: for (ib = i = 0; i < resnsz; i++) {
489: sec = resn[i].file;
1.264 schwarze 490: sec += strcspn(sec, "123456789");
491: if (sec[0] == '\0')
1.325 schwarze 492: continue; /* No section at all. */
1.264 schwarze 493: prio = sec_prios[sec[0] - '1'];
1.325 schwarze 494: if (search.sec != NULL) {
495: ssz = strlen(search.sec);
496: if (strncmp(sec, search.sec, ssz) == 0)
497: sec += ssz;
498: } else
499: sec++; /* Prefer without suffix. */
500: if (*sec != '/')
501: prio += 10; /* Wrong dir name. */
502: if (search.sec != NULL &&
503: (strlen(sec) <= ssz + 3 ||
504: strcmp(sec + strlen(sec) - ssz,
505: search.sec) != 0))
506: prio += 20; /* Wrong file ext. */
1.182 schwarze 507: if (prio >= best_prio)
508: continue;
509: best_prio = prio;
1.338 schwarze 510: ib = i;
1.182 schwarze 511: }
1.338 schwarze 512: res = mandoc_reallocarray(res, ressz + 1,
513: sizeof(*res));
514: memcpy(res + ressz++, resn + ib, sizeof(*resn));
1.181 schwarze 515: }
1.182 schwarze 516:
1.338 schwarze 517: /* apropos(1), whatis(1): Process the full search expression. */
518:
519: } else if (search.argmode != ARG_FILE) {
520: if (mansearch(&search, &conf.manpath,
521: argc, argv, &res, &ressz) == 0)
522: usage(search.argmode);
1.182 schwarze 523:
1.338 schwarze 524: if (ressz == 0) {
525: warnx("nothing appropriate");
526: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.182 schwarze 527: goto out;
1.338 schwarze 528: }
529:
530: /* mandoc(1): Take command line arguments as file names. */
531:
1.337 schwarze 532: } else {
1.338 schwarze 533: ressz = argc > 0 ? argc : 1;
534: res = mandoc_calloc(ressz, sizeof(*res));
535: for (i = 0; i < ressz; i++) {
1.337 schwarze 536: if (argc > 0)
537: res[i].file = mandoc_strdup(argv[i]);
538: res[i].ipath = SIZE_MAX;
539: res[i].form = FORM_SRC;
540: }
1.180 schwarze 541: }
542:
1.338 schwarze 543: switch (outmode) {
544: case OUTMODE_FLN:
545: for (i = 0; i < ressz; i++)
546: puts(res[i].file);
547: goto out;
548: case OUTMODE_LST:
549: for (i = 0; i < ressz; i++)
550: printf("%s - %s\n", res[i].names,
551: res[i].output == NULL ? "" :
552: res[i].output);
553: goto out;
554: default:
555: break;
556: }
1.255 schwarze 557:
1.329 schwarze 558: if (search.argmode == ARG_FILE && auxpaths != NULL) {
559: if (strcmp(auxpaths, "doc") == 0)
560: options |= MPARSE_MDOC;
561: else if (strcmp(auxpaths, "an") == 0)
562: options |= MPARSE_MAN;
563: }
1.241 schwarze 564:
1.249 schwarze 565: mchars_alloc();
1.334 schwarze 566: mp = mparse_alloc(options, os_e, os_s);
1.154 kristaps 567:
1.305 schwarze 568: /*
569: * Remember the original working directory, if possible.
570: * This will be needed if some names on the command line
571: * are page names and some are relative file names.
572: * Do not error out if the current directory is not
573: * readable: Maybe it won't be needed after all.
574: */
575: startdir = open(".", O_RDONLY | O_DIRECTORY);
576:
1.338 schwarze 577: for (i = 0; i < ressz; i++) {
578: process_onefile(mp, res + i, startdir, &outst, &conf);
1.335 schwarze 579: if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 580: break;
1.1 kristaps 581: }
1.305 schwarze 582: if (startdir != -1) {
583: (void)fchdir(startdir);
584: close(startdir);
585: }
1.1 kristaps 586:
1.335 schwarze 587: if (outst.outdata != NULL) {
588: switch (outst.outtype) {
1.252 schwarze 589: case OUTT_HTML:
1.335 schwarze 590: html_free(outst.outdata);
1.252 schwarze 591: break;
592: case OUTT_UTF8:
593: case OUTT_LOCALE:
594: case OUTT_ASCII:
1.335 schwarze 595: ascii_free(outst.outdata);
1.252 schwarze 596: break;
597: case OUTT_PDF:
598: case OUTT_PS:
1.335 schwarze 599: pspdf_free(outst.outdata);
1.252 schwarze 600: break;
601: default:
602: break;
603: }
1.250 schwarze 604: }
1.294 schwarze 605: mandoc_xr_free();
1.334 schwarze 606: mparse_free(mp);
1.249 schwarze 607: mchars_free();
1.182 schwarze 608:
609: out:
1.338 schwarze 610: mansearch_free(res, ressz);
1.337 schwarze 611: if (search.argmode != ARG_FILE)
1.229 schwarze 612: manconf_free(&conf);
1.1 kristaps 613:
1.336 schwarze 614: if (outst.tag_files != NULL) {
1.225 schwarze 615: fclose(stdout);
1.239 schwarze 616: tag_write();
1.336 schwarze 617: run_pager(outst.tag_files);
1.239 schwarze 618: tag_unlink();
1.337 schwarze 619: } else if (outst.had_output && outst.outtype != OUTT_LINT)
1.330 schwarze 620: mandoc_msg_summary();
621:
1.312 schwarze 622: return (int)mandoc_msg_getrc();
1.1 kristaps 623: }
624:
1.55 kristaps 625: static void
1.180 schwarze 626: usage(enum argmode argmode)
1.1 kristaps 627: {
1.180 schwarze 628: switch (argmode) {
629: case ARG_FILE:
1.287 schwarze 630: fputs("usage: mandoc [-ac] [-I os=name] "
631: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 632: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 633: break;
634: case ARG_NAME:
1.287 schwarze 635: fputs("usage: man [-acfhklw] [-C file] [-M path] "
636: "[-m path] [-S subsection]\n"
637: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 638: break;
639: case ARG_WORD:
1.287 schwarze 640: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 641: "[-M path] [-m path] [-O outkey] [-S arch]\n"
642: "\t [-s section] name ...\n", stderr);
1.180 schwarze 643: break;
644: case ARG_EXPR:
1.287 schwarze 645: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 646: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 647: "\t [-s section] expression ...\n", stderr);
648: break;
649: }
1.105 kristaps 650: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 651: }
1.213 schwarze 652:
653: static int
654: fs_lookup(const struct manpaths *paths, size_t ipath,
655: const char *sec, const char *arch, const char *name,
656: struct manpage **res, size_t *ressz)
657: {
1.326 schwarze 658: struct stat sb;
1.222 schwarze 659: glob_t globinfo;
1.213 schwarze 660: struct manpage *page;
661: char *file;
1.274 schwarze 662: int globres;
663: enum form form;
1.213 schwarze 664:
1.222 schwarze 665: form = FORM_SRC;
1.213 schwarze 666: mandoc_asprintf(&file, "%s/man%s/%s.%s",
667: paths->paths[ipath], sec, name, sec);
1.326 schwarze 668: if (stat(file, &sb) != -1)
1.213 schwarze 669: goto found;
670: free(file);
671:
672: mandoc_asprintf(&file, "%s/cat%s/%s.0",
673: paths->paths[ipath], sec, name);
1.326 schwarze 674: if (stat(file, &sb) != -1) {
1.213 schwarze 675: form = FORM_CAT;
676: goto found;
677: }
678: free(file);
679:
680: if (arch != NULL) {
681: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
682: paths->paths[ipath], sec, arch, name, sec);
1.326 schwarze 683: if (stat(file, &sb) != -1)
1.213 schwarze 684: goto found;
685: free(file);
686: }
1.222 schwarze 687:
1.240 schwarze 688: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 689: paths->paths[ipath], sec, name);
690: globres = glob(file, 0, NULL, &globinfo);
691: if (globres != 0 && globres != GLOB_NOMATCH)
1.329 schwarze 692: mandoc_msg(MANDOCERR_GLOB, 0, 0,
693: "%s: %s", file, strerror(errno));
1.222 schwarze 694: free(file);
695: if (globres == 0)
696: file = mandoc_strdup(*globinfo.gl_pathv);
697: globfree(&globinfo);
1.326 schwarze 698: if (globres == 0) {
699: if (stat(file, &sb) != -1)
700: goto found;
701: free(file);
702: }
1.296 schwarze 703: if (res != NULL || ipath + 1 != paths->sz)
1.329 schwarze 704: return -1;
1.213 schwarze 705:
1.296 schwarze 706: mandoc_asprintf(&file, "%s.%s", name, sec);
1.326 schwarze 707: globres = stat(file, &sb);
1.296 schwarze 708: free(file);
1.329 schwarze 709: return globres;
1.296 schwarze 710:
1.213 schwarze 711: found:
1.266 schwarze 712: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
713: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 714: if (res == NULL) {
715: free(file);
1.329 schwarze 716: return 0;
1.296 schwarze 717: }
1.329 schwarze 718: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.213 schwarze 719: page = *res + (*ressz - 1);
720: page->file = file;
721: page->names = NULL;
722: page->output = NULL;
1.323 schwarze 723: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 724: page->ipath = ipath;
725: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
726: page->form = form;
1.329 schwarze 727: return 0;
1.213 schwarze 728: }
729:
1.295 schwarze 730: static int
1.213 schwarze 731: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
1.340 ! schwarze 732: const char *name, struct manpage **res, size_t *ressz)
1.213 schwarze 733: {
734: const char *const sections[] =
1.264 schwarze 735: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 736: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
737:
1.340 ! schwarze 738: size_t ipath, isec;
1.213 schwarze 739:
740: assert(cfg->argmode == ARG_NAME);
1.295 schwarze 741: if (res != NULL)
742: *res = NULL;
1.340 ! schwarze 743: *ressz = 0;
! 744: for (ipath = 0; ipath < paths->sz; ipath++) {
! 745: if (cfg->sec != NULL) {
! 746: if (fs_lookup(paths, ipath, cfg->sec, cfg->arch,
! 747: name, res, ressz) != -1 && cfg->firstmatch)
! 748: return 0;
! 749: } else {
! 750: for (isec = 0; isec < nsec; isec++)
1.213 schwarze 751: if (fs_lookup(paths, ipath, sections[isec],
1.340 ! schwarze 752: cfg->arch, name, res, ressz) != -1 &&
1.213 schwarze 753: cfg->firstmatch)
1.329 schwarze 754: return 0;
1.213 schwarze 755: }
756: }
1.329 schwarze 757: return -1;
1.213 schwarze 758: }
1.68 joerg 759:
1.64 kristaps 760: static void
1.337 schwarze 761: process_onefile(struct mparse *mp, struct manpage *resp, int startdir,
762: struct outstate *outst, struct manconf *conf)
763: {
764: int fd;
765:
766: /*
767: * Changing directories is not needed in ARG_FILE mode.
768: * Do it on a best-effort basis. Even in case of
769: * failure, some functionality may still work.
770: */
771: if (resp->ipath != SIZE_MAX)
772: (void)chdir(conf->manpath.paths[resp->ipath]);
773: else if (startdir != -1)
774: (void)fchdir(startdir);
775:
776: mandoc_msg_setinfilename(resp->file);
777: if (resp->file != NULL) {
778: if ((fd = mparse_open(mp, resp->file)) == -1) {
779: mandoc_msg(resp->ipath == SIZE_MAX ?
780: MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
781: 0, 0, "%s", strerror(errno));
782: mandoc_msg_setinfilename(NULL);
783: return;
784: }
785: } else
786: fd = STDIN_FILENO;
787:
788: if (outst->use_pager) {
789: outst->use_pager = 0;
790: outst->tag_files = tag_init(conf->output.tag);
791: }
792:
793: if (outst->had_output && outst->outtype <= OUTT_UTF8) {
794: if (outst->outdata == NULL)
795: outdata_alloc(outst, &conf->output);
796: terminal_sepline(outst->outdata);
797: }
798:
799: if (resp->form == FORM_SRC)
800: parse(mp, fd, resp->file, outst, &conf->output);
801: else {
802: passthrough(fd, conf->output.synopsisonly);
803: outst->had_output = 1;
804: }
805:
806: if (ferror(stdout)) {
807: if (outst->tag_files != NULL) {
808: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
809: outst->tag_files->ofn, strerror(errno));
810: tag_unlink();
811: outst->tag_files = NULL;
812: } else
813: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
814: strerror(errno));
815: }
816: mandoc_msg_setinfilename(NULL);
817: }
818:
819: static void
1.335 schwarze 820: parse(struct mparse *mp, int fd, const char *file,
821: struct outstate *outst, struct manoutput *outconf)
1.1 kristaps 822: {
1.337 schwarze 823: static int previous;
824: struct roff_meta *meta;
1.112 kristaps 825:
1.337 schwarze 826: assert(fd >= 0);
827: if (file == NULL)
828: file = "<stdin>";
1.112 kristaps 829:
1.337 schwarze 830: if (previous)
831: mparse_reset(mp);
832: else
833: previous = 1;
1.112 kristaps 834:
1.334 schwarze 835: mparse_readfd(mp, fd, file);
1.261 schwarze 836: if (fd != STDIN_FILENO)
837: close(fd);
1.112 kristaps 838:
1.1 kristaps 839: /*
1.154 kristaps 840: * With -Wstop and warnings or errors of at least the requested
841: * level, do not produce output.
1.1 kristaps 842: */
843:
1.335 schwarze 844: if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 845: return;
1.111 kristaps 846:
1.335 schwarze 847: if (outst->outdata == NULL)
848: outdata_alloc(outst, outconf);
849: else if (outst->outtype == OUTT_HTML)
850: html_reset(outst);
1.111 kristaps 851:
1.315 schwarze 852: mandoc_xr_reset();
1.334 schwarze 853: meta = mparse_result(mp);
1.250 schwarze 854:
855: /* Execute the out device, if it exists. */
856:
1.337 schwarze 857: outst->had_output = 1;
1.315 schwarze 858: if (meta->macroset == MACROSET_MDOC) {
1.335 schwarze 859: switch (outst->outtype) {
1.173 schwarze 860: case OUTT_HTML:
1.335 schwarze 861: html_mdoc(outst->outdata, meta);
1.111 kristaps 862: break;
1.173 schwarze 863: case OUTT_TREE:
1.335 schwarze 864: tree_mdoc(outst->outdata, meta);
1.111 kristaps 865: break;
1.173 schwarze 866: case OUTT_MAN:
1.335 schwarze 867: man_mdoc(outst->outdata, meta);
1.164 schwarze 868: break;
1.173 schwarze 869: case OUTT_PDF:
870: case OUTT_ASCII:
871: case OUTT_UTF8:
872: case OUTT_LOCALE:
873: case OUTT_PS:
1.335 schwarze 874: terminal_mdoc(outst->outdata, meta);
1.250 schwarze 875: break;
1.285 schwarze 876: case OUTT_MARKDOWN:
1.335 schwarze 877: markdown_mdoc(outst->outdata, meta);
1.285 schwarze 878: break;
1.250 schwarze 879: default:
880: break;
881: }
882: }
1.315 schwarze 883: if (meta->macroset == MACROSET_MAN) {
1.335 schwarze 884: switch (outst->outtype) {
1.250 schwarze 885: case OUTT_HTML:
1.335 schwarze 886: html_man(outst->outdata, meta);
1.250 schwarze 887: break;
888: case OUTT_TREE:
1.335 schwarze 889: tree_man(outst->outdata, meta);
1.250 schwarze 890: break;
891: case OUTT_MAN:
1.334 schwarze 892: mparse_copy(mp);
1.250 schwarze 893: break;
894: case OUTT_PDF:
895: case OUTT_ASCII:
896: case OUTT_UTF8:
897: case OUTT_LOCALE:
898: case OUTT_PS:
1.335 schwarze 899: terminal_man(outst->outdata, meta);
1.111 kristaps 900: break;
901: default:
902: break;
903: }
1.276 schwarze 904: }
1.312 schwarze 905: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
906: check_xr();
1.294 schwarze 907: }
908:
909: static void
1.312 schwarze 910: check_xr(void)
1.294 schwarze 911: {
912: static struct manpaths paths;
913: struct mansearch search;
914: struct mandoc_xr *xr;
915: size_t sz;
916:
917: if (paths.sz == 0)
918: manpath_base(&paths);
919:
920: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 921: if (xr->line == -1)
922: continue;
1.294 schwarze 923: search.arch = NULL;
924: search.sec = xr->sec;
925: search.outkey = NULL;
926: search.argmode = ARG_NAME;
927: search.firstmatch = 1;
928: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 929: continue;
1.340 ! schwarze 930: if (fs_search(&search, &paths, xr->name, NULL, &sz) != -1)
1.294 schwarze 931: continue;
1.298 schwarze 932: if (xr->count == 1)
1.313 schwarze 933: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
934: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 935: else
1.313 schwarze 936: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
937: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 938: xr->name, xr->sec, xr->count);
1.294 schwarze 939: }
1.276 schwarze 940: }
941:
942: static void
1.335 schwarze 943: outdata_alloc(struct outstate *outst, struct manoutput *outconf)
1.276 schwarze 944: {
1.335 schwarze 945: switch (outst->outtype) {
1.276 schwarze 946: case OUTT_HTML:
1.335 schwarze 947: outst->outdata = html_alloc(outconf);
1.276 schwarze 948: break;
949: case OUTT_UTF8:
1.335 schwarze 950: outst->outdata = utf8_alloc(outconf);
1.276 schwarze 951: break;
952: case OUTT_LOCALE:
1.335 schwarze 953: outst->outdata = locale_alloc(outconf);
1.276 schwarze 954: break;
955: case OUTT_ASCII:
1.335 schwarze 956: outst->outdata = ascii_alloc(outconf);
1.276 schwarze 957: break;
958: case OUTT_PDF:
1.335 schwarze 959: outst->outdata = pdf_alloc(outconf);
1.276 schwarze 960: break;
961: case OUTT_PS:
1.335 schwarze 962: outst->outdata = ps_alloc(outconf);
1.276 schwarze 963: break;
964: default:
965: break;
1.111 kristaps 966: }
1.186 schwarze 967: }
968:
1.227 schwarze 969: static void
1.329 schwarze 970: passthrough(int fd, int synopsis_only)
1.186 schwarze 971: {
1.197 schwarze 972: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
973: const char synr[] = "SYNOPSIS";
974:
975: FILE *stream;
1.257 schwarze 976: char *line, *cp;
977: size_t linesz;
1.277 schwarze 978: ssize_t len, written;
1.329 schwarze 979: int lno, print;
1.210 schwarze 980:
1.329 schwarze 981: stream = NULL;
1.257 schwarze 982: line = NULL;
983: linesz = 0;
1.197 schwarze 984:
1.277 schwarze 985: if (fflush(stdout) == EOF) {
1.329 schwarze 986: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
987: goto done;
1.277 schwarze 988: }
1.197 schwarze 989: if ((stream = fdopen(fd, "r")) == NULL) {
990: close(fd);
1.329 schwarze 991: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
992: goto done;
1.197 schwarze 993: }
1.186 schwarze 994:
1.329 schwarze 995: lno = print = 0;
1.277 schwarze 996: while ((len = getline(&line, &linesz, stream)) != -1) {
1.329 schwarze 997: lno++;
1.257 schwarze 998: cp = line;
1.197 schwarze 999: if (synopsis_only) {
1000: if (print) {
1.257 schwarze 1001: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 1002: goto done;
1.277 schwarze 1003: while (isspace((unsigned char)*cp)) {
1.257 schwarze 1004: cp++;
1.277 schwarze 1005: len--;
1006: }
1.197 schwarze 1007: } else {
1.257 schwarze 1008: if (strcmp(cp, synb) == 0 ||
1009: strcmp(cp, synr) == 0)
1.197 schwarze 1010: print = 1;
1011: continue;
1012: }
1013: }
1.277 schwarze 1014: for (; len > 0; len -= written) {
1.329 schwarze 1015: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1016: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1017: "%s", strerror(errno));
1018: goto done;
1019: }
1.257 schwarze 1020: }
1.197 schwarze 1021: }
1.329 schwarze 1022: if (ferror(stream))
1023: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.193 schwarze 1024:
1.197 schwarze 1025: done:
1.257 schwarze 1026: free(line);
1.329 schwarze 1027: if (stream != NULL)
1028: fclose(stream);
1.1 kristaps 1029: }
1030:
1031: static int
1.334 schwarze 1032: woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1.1 kristaps 1033: {
1.34 kristaps 1034: char *v, *o;
1.293 schwarze 1035: const char *toks[11];
1.1 kristaps 1036:
1.103 schwarze 1037: toks[0] = "stop";
1038: toks[1] = "all";
1.293 schwarze 1039: toks[2] = "base";
1040: toks[3] = "style";
1041: toks[4] = "warning";
1042: toks[5] = "error";
1043: toks[6] = "unsupp";
1044: toks[7] = "fatal";
1045: toks[8] = "openbsd";
1046: toks[9] = "netbsd";
1047: toks[10] = NULL;
1.1 kristaps 1048:
1.34 kristaps 1049: while (*arg) {
1050: o = arg;
1.272 schwarze 1051: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1052: case 0:
1.334 schwarze 1053: *wstop = 1;
1.1 kristaps 1054: break;
1.173 schwarze 1055: case 1:
1056: case 2:
1.312 schwarze 1057: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1058: break;
1059: case 3:
1.312 schwarze 1060: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1061: break;
1.290 schwarze 1062: case 4:
1.312 schwarze 1063: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1064: break;
1.290 schwarze 1065: case 5:
1.312 schwarze 1066: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1067: break;
1.290 schwarze 1068: case 6:
1.312 schwarze 1069: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1070: break;
1071: case 7:
1.329 schwarze 1072: mandoc_msg_setmin(MANDOCERR_BADARG);
1.293 schwarze 1073: break;
1074: case 8:
1.312 schwarze 1075: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1076: *os_e = MANDOC_OS_OPENBSD;
1.293 schwarze 1077: break;
1078: case 9:
1.312 schwarze 1079: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1080: *os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1081: break;
1.1 kristaps 1082: default:
1.329 schwarze 1083: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1084: return -1;
1.1 kristaps 1085: }
1.34 kristaps 1086: }
1.329 schwarze 1087: return 0;
1.333 schwarze 1088: }
1089:
1090: /*
1091: * Wait until moved to the foreground,
1092: * then fork the pager and wait for the user to close it.
1093: */
1094: static void
1095: run_pager(struct tag_files *tag_files)
1096: {
1097: int signum, status;
1098: pid_t man_pgid, tc_pgid;
1099: pid_t pager_pid, wait_pid;
1100:
1101: man_pgid = getpgid(0);
1102: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
1103: man_pgid;
1104: pager_pid = 0;
1105: signum = SIGSTOP;
1106:
1107: for (;;) {
1108: /* Stop here until moved to the foreground. */
1109:
1110: tc_pgid = tcgetpgrp(tag_files->ofd);
1111: if (tc_pgid != man_pgid) {
1112: if (tc_pgid == pager_pid) {
1113: (void)tcsetpgrp(tag_files->ofd, man_pgid);
1114: if (signum == SIGTTIN)
1115: continue;
1116: } else
1117: tag_files->tcpgid = tc_pgid;
1118: kill(0, signum);
1119: continue;
1120: }
1121:
1122: /* Once in the foreground, activate the pager. */
1123:
1124: if (pager_pid) {
1125: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1126: kill(pager_pid, SIGCONT);
1127: } else
1128: pager_pid = spawn_pager(tag_files);
1129:
1130: /* Wait for the pager to stop or exit. */
1131:
1132: while ((wait_pid = waitpid(pager_pid, &status,
1133: WUNTRACED)) == -1 && errno == EINTR)
1134: continue;
1135:
1136: if (wait_pid == -1) {
1137: mandoc_msg(MANDOCERR_WAIT, 0, 0,
1138: "%s", strerror(errno));
1139: break;
1140: }
1141: if (!WIFSTOPPED(status))
1142: break;
1143:
1144: signum = WSTOPSIG(status);
1145: }
1.183 schwarze 1146: }
1147:
1.225 schwarze 1148: static pid_t
1.244 schwarze 1149: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1150: {
1.265 schwarze 1151: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1152: #define MAX_PAGER_ARGS 16
1153: char *argv[MAX_PAGER_ARGS];
1154: const char *pager;
1155: char *cp;
1.322 schwarze 1156: #if HAVE_LESS_T
1.239 schwarze 1157: size_t cmdlen;
1.322 schwarze 1158: #endif
1.309 schwarze 1159: int argc, use_ofn;
1.225 schwarze 1160: pid_t pager_pid;
1.183 schwarze 1161:
1.239 schwarze 1162: pager = getenv("MANPAGER");
1163: if (pager == NULL || *pager == '\0')
1164: pager = getenv("PAGER");
1165: if (pager == NULL || *pager == '\0')
1166: pager = "more -s";
1167: cp = mandoc_strdup(pager);
1168:
1169: /*
1170: * Parse the pager command into words.
1171: * Intentionally do not do anything fancy here.
1172: */
1173:
1174: argc = 0;
1.309 schwarze 1175: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1176: argv[argc++] = cp;
1177: cp = strchr(cp, ' ');
1178: if (cp == NULL)
1179: break;
1180: *cp++ = '\0';
1181: while (*cp == ' ')
1182: cp++;
1183: if (*cp == '\0')
1184: break;
1185: }
1186:
1.268 schwarze 1187: /* For less(1), use the tag file. */
1.239 schwarze 1188:
1.309 schwarze 1189: use_ofn = 1;
1.322 schwarze 1190: #if HAVE_LESS_T
1.332 schwarze 1191: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1192: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1193: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1194: argv[argc++] = mandoc_strdup("-T");
1195: argv[argc++] = tag_files->tfn;
1.309 schwarze 1196: if (tag_files->tagname != NULL) {
1197: argv[argc++] = mandoc_strdup("-t");
1198: argv[argc++] = tag_files->tagname;
1199: use_ofn = 0;
1200: }
1.244 schwarze 1201: }
1.239 schwarze 1202: }
1.322 schwarze 1203: #endif
1.309 schwarze 1204: if (use_ofn)
1205: argv[argc++] = tag_files->ofn;
1.239 schwarze 1206: argv[argc] = NULL;
1207:
1.225 schwarze 1208: switch (pager_pid = fork()) {
1.183 schwarze 1209: case -1:
1.329 schwarze 1210: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1211: exit(mandoc_msg_getrc());
1.183 schwarze 1212: case 0:
1.224 schwarze 1213: break;
1214: default:
1.258 schwarze 1215: (void)setpgid(pager_pid, 0);
1.279 schwarze 1216: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1217: #if HAVE_PLEDGE
1.329 schwarze 1218: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1219: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1220: "%s", strerror(errno));
1221: exit(mandoc_msg_getrc());
1222: }
1.255 schwarze 1223: #endif
1.259 schwarze 1224: tag_files->pager_pid = pager_pid;
1.245 schwarze 1225: return pager_pid;
1.184 schwarze 1226: }
1227:
1.224 schwarze 1228: /* The child process becomes the pager. */
1.184 schwarze 1229:
1.329 schwarze 1230: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1231: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1232: _exit(mandoc_msg_getrc());
1233: }
1.244 schwarze 1234: close(tag_files->ofd);
1.303 schwarze 1235: assert(tag_files->tfd == -1);
1.265 schwarze 1236:
1237: /* Do not start the pager before controlling the terminal. */
1238:
1.279 schwarze 1239: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1240: nanosleep(&timeout, NULL);
1241:
1.184 schwarze 1242: execvp(argv[0], argv);
1.329 schwarze 1243: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1244: _exit(mandoc_msg_getrc());
1.71 kristaps 1245: }
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