Annotation of mandoc/main.c, Revision 1.341
1.341 ! schwarze 1: /* $Id: main.c,v 1.340 2019/07/28 19:41:21 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>
1.341 ! schwarze 35: #include <limits.h>
1.269 kristaps 36: #if HAVE_SANDBOX_INIT
37: #include <sandbox.h>
38: #endif
1.226 schwarze 39: #include <signal.h>
1.1 kristaps 40: #include <stdio.h>
1.45 kristaps 41: #include <stdint.h>
1.1 kristaps 42: #include <stdlib.h>
43: #include <string.h>
1.321 schwarze 44: #include <termios.h>
1.265 schwarze 45: #include <time.h>
1.1 kristaps 46: #include <unistd.h>
47:
1.231 schwarze 48: #include "mandoc_aux.h"
1.71 kristaps 49: #include "mandoc.h"
1.294 schwarze 50: #include "mandoc_xr.h"
1.231 schwarze 51: #include "roff.h"
1.1 kristaps 52: #include "mdoc.h"
1.10 kristaps 53: #include "man.h"
1.311 schwarze 54: #include "mandoc_parse.h"
1.239 schwarze 55: #include "tag.h"
1.231 schwarze 56: #include "main.h"
1.229 schwarze 57: #include "manconf.h"
1.180 schwarze 58: #include "mansearch.h"
1.16 kristaps 59:
1.181 schwarze 60: enum outmode {
61: OUTMODE_DEF = 0,
62: OUTMODE_FLN,
63: OUTMODE_LST,
64: OUTMODE_ALL,
65: OUTMODE_ONE
66: };
67:
1.19 kristaps 68: enum outt {
1.154 kristaps 69: OUTT_ASCII = 0, /* -Tascii */
1.162 kristaps 70: OUTT_LOCALE, /* -Tlocale */
1.163 kristaps 71: OUTT_UTF8, /* -Tutf8 */
1.154 kristaps 72: OUTT_TREE, /* -Ttree */
1.164 schwarze 73: OUTT_MAN, /* -Tman */
1.154 kristaps 74: OUTT_HTML, /* -Thtml */
1.285 schwarze 75: OUTT_MARKDOWN, /* -Tmarkdown */
1.154 kristaps 76: OUTT_LINT, /* -Tlint */
77: OUTT_PS, /* -Tps */
78: OUTT_PDF /* -Tpdf */
1.19 kristaps 79: };
80:
1.335 schwarze 81: struct outstate {
1.336 schwarze 82: struct tag_files *tag_files; /* Tagging state variables. */
1.293 schwarze 83: void *outdata; /* data for output */
1.336 schwarze 84: int use_pager;
1.148 kristaps 85: int wstop; /* stop after a file with a warning */
1.337 schwarze 86: int had_output; /* Some output was generated. */
1.173 schwarze 87: enum outt outtype; /* which output to use */
1.79 kristaps 88: };
1.270 schwarze 89:
90:
91: int mandocdb(int, char *[]);
1.79 kristaps 92:
1.312 schwarze 93: static void check_xr(void);
1.213 schwarze 94: static int fs_lookup(const struct manpaths *,
95: size_t ipath, const char *,
96: const char *, const char *,
97: struct manpage **, size_t *);
1.295 schwarze 98: static int fs_search(const struct mansearch *,
1.340 schwarze 99: const struct manpaths *, const char *,
1.213 schwarze 100: struct manpage **, size_t *);
1.335 schwarze 101: static void outdata_alloc(struct outstate *, struct manoutput *);
1.334 schwarze 102: static void parse(struct mparse *, int, const char *,
1.335 schwarze 103: struct outstate *, struct manoutput *);
1.329 schwarze 104: static void passthrough(int, int);
1.337 schwarze 105: static void process_onefile(struct mparse *, struct manpage *,
106: int, struct outstate *, struct manconf *);
1.333 schwarze 107: static void run_pager(struct tag_files *);
1.244 schwarze 108: static pid_t spawn_pager(struct tag_files *);
1.283 schwarze 109: static void usage(enum argmode) __attribute__((__noreturn__));
1.334 schwarze 110: static int woptions(char *, enum mandoc_os *, int *);
1.1 kristaps 111:
1.182 schwarze 112: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.202 schwarze 113: static char help_arg[] = "help";
114: static char *help_argv[] = {help_arg, NULL};
1.1 kristaps 115:
1.173 schwarze 116:
1.1 kristaps 117: int
118: main(int argc, char *argv[])
119: {
1.334 schwarze 120: struct manconf conf; /* Manpaths and output options. */
1.335 schwarze 121: struct outstate outst; /* Output state. */
1.334 schwarze 122: struct winsize ws; /* Result of ioctl(TIOCGWINSZ). */
123: struct mansearch search; /* Search options. */
1.338 schwarze 124: struct manpage *res; /* Complete list of search results. */
125: struct manpage *resn; /* Search results for one name. */
1.334 schwarze 126: struct mparse *mp; /* Opaque parser object. */
127: const char *conf_file; /* -C: alternate config file. */
128: const char *os_s; /* -I: Operating system for display. */
1.337 schwarze 129: const char *progname, *sec;
1.334 schwarze 130: char *defpaths; /* -M: override manpaths. */
131: char *auxpaths; /* -m: additional manpaths. */
132: char *oarg; /* -O: output option string. */
133: char *tagarg; /* -O tag: default value. */
1.207 schwarze 134: unsigned char *uc;
1.338 schwarze 135: size_t ressz; /* Number of elements in res[]. */
136: size_t resnsz; /* Number of elements in resn[]. */
137: size_t i, ib, ssz;
1.334 schwarze 138: int options; /* Parser options. */
139: int show_usage; /* Invalid argument: give up. */
1.230 schwarze 140: int prio, best_prio;
1.337 schwarze 141: int startdir;
1.180 schwarze 142: int c;
1.334 schwarze 143: enum mandoc_os os_e; /* Check base system conventions. */
144: enum outmode outmode; /* According to command line. */
1.1 kristaps 145:
1.254 schwarze 146: #if HAVE_PROGNAME
147: progname = getprogname();
148: #else
1.219 schwarze 149: if (argc < 1)
1.254 schwarze 150: progname = mandoc_strdup("mandoc");
151: else if ((progname = strrchr(argv[0], '/')) == NULL)
152: progname = argv[0];
1.54 kristaps 153: else
1.254 schwarze 154: ++progname;
155: setprogname(progname);
1.247 schwarze 156: #endif
1.203 schwarze 157:
1.317 schwarze 158: mandoc_msg_setoutfile(stderr);
1.254 schwarze 159: if (strncmp(progname, "mandocdb", 8) == 0 ||
160: strcmp(progname, BINM_MAKEWHATIS) == 0)
1.245 schwarze 161: return mandocdb(argc, argv);
1.179 schwarze 162:
1.255 schwarze 163: #if HAVE_PLEDGE
1.329 schwarze 164: if (pledge("stdio rpath tmppath tty proc exec", NULL) == -1) {
165: mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno));
166: return mandoc_msg_getrc();
167: }
1.269 kristaps 168: #endif
169: #if HAVE_SANDBOX_INIT
170: if (sandbox_init(kSBXProfileNoInternet, SANDBOX_NAMED, NULL) == -1)
171: errx((int)MANDOCLEVEL_SYSERR, "sandbox_init");
1.255 schwarze 172: #endif
173:
1.180 schwarze 174: /* Search options. */
175:
1.229 schwarze 176: memset(&conf, 0, sizeof(conf));
1.334 schwarze 177: conf_file = NULL;
178: defpaths = auxpaths = NULL;
1.180 schwarze 179:
180: memset(&search, 0, sizeof(struct mansearch));
181: search.outkey = "Nd";
1.282 schwarze 182: oarg = NULL;
1.180 schwarze 183:
1.254 schwarze 184: if (strcmp(progname, BINM_MAN) == 0)
1.180 schwarze 185: search.argmode = ARG_NAME;
1.254 schwarze 186: else if (strcmp(progname, BINM_APROPOS) == 0)
1.180 schwarze 187: search.argmode = ARG_EXPR;
1.254 schwarze 188: else if (strcmp(progname, BINM_WHATIS) == 0)
1.180 schwarze 189: search.argmode = ARG_WORD;
1.254 schwarze 190: else if (strncmp(progname, "help", 4) == 0)
1.202 schwarze 191: search.argmode = ARG_NAME;
1.180 schwarze 192: else
193: search.argmode = ARG_FILE;
194:
1.335 schwarze 195: /* Parser options. */
1.54 kristaps 196:
1.335 schwarze 197: options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
1.334 schwarze 198: os_e = MANDOC_OS_OTHER;
199: os_s = NULL;
1.335 schwarze 200:
201: /* Formatter options. */
202:
203: memset(&outst, 0, sizeof(outst));
1.336 schwarze 204: outst.tag_files = NULL;
1.335 schwarze 205: outst.outtype = OUTT_LOCALE;
1.336 schwarze 206: outst.use_pager = 1;
1.19 kristaps 207:
1.180 schwarze 208: show_usage = 0;
1.181 schwarze 209: outmode = OUTMODE_DEF;
1.183 schwarze 210:
1.289 schwarze 211: while ((c = getopt(argc, argv,
212: "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) {
213: if (c == 'i' && search.argmode == ARG_EXPR) {
214: optind--;
215: break;
216: }
1.1 kristaps 217: switch (c) {
1.181 schwarze 218: case 'a':
219: outmode = OUTMODE_ALL;
220: break;
1.180 schwarze 221: case 'C':
222: conf_file = optarg;
223: break;
1.183 schwarze 224: case 'c':
1.336 schwarze 225: outst.use_pager = 0;
1.183 schwarze 226: break;
1.180 schwarze 227: case 'f':
228: search.argmode = ARG_WORD;
229: break;
1.190 schwarze 230: case 'h':
1.230 schwarze 231: conf.output.synopsisonly = 1;
1.336 schwarze 232: outst.use_pager = 0;
1.190 schwarze 233: outmode = OUTMODE_ALL;
234: break;
1.173 schwarze 235: case 'I':
1.329 schwarze 236: if (strncmp(optarg, "os=", 3) != 0) {
237: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
238: "-I %s", optarg);
239: return mandoc_msg_getrc();
1.166 schwarze 240: }
1.334 schwarze 241: if (os_s != NULL) {
1.329 schwarze 242: mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0,
243: "-I %s", optarg);
244: return mandoc_msg_getrc();
1.166 schwarze 245: }
1.334 schwarze 246: os_s = optarg + 3;
1.181 schwarze 247: break;
1.194 schwarze 248: case 'K':
1.329 schwarze 249: options &= ~(MPARSE_UTF8 | MPARSE_LATIN1);
250: if (strcmp(optarg, "utf-8") == 0)
251: options |= MPARSE_UTF8;
252: else if (strcmp(optarg, "iso-8859-1") == 0)
253: options |= MPARSE_LATIN1;
254: else if (strcmp(optarg, "us-ascii") != 0) {
255: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
256: "-K %s", optarg);
257: return mandoc_msg_getrc();
258: }
1.194 schwarze 259: break;
1.180 schwarze 260: case 'k':
261: search.argmode = ARG_EXPR;
262: break;
1.188 schwarze 263: case 'l':
264: search.argmode = ARG_FILE;
265: outmode = OUTMODE_ALL;
266: break;
1.180 schwarze 267: case 'M':
268: defpaths = optarg;
269: break;
1.173 schwarze 270: case 'm':
1.180 schwarze 271: auxpaths = optarg;
1.10 kristaps 272: break;
1.173 schwarze 273: case 'O':
1.282 schwarze 274: oarg = optarg;
1.44 kristaps 275: break;
1.180 schwarze 276: case 'S':
277: search.arch = optarg;
278: break;
279: case 's':
280: search.sec = optarg;
281: break;
1.173 schwarze 282: case 'T':
1.329 schwarze 283: if (strcmp(optarg, "ascii") == 0)
1.335 schwarze 284: outst.outtype = OUTT_ASCII;
1.329 schwarze 285: else if (strcmp(optarg, "lint") == 0) {
1.335 schwarze 286: outst.outtype = OUTT_LINT;
1.329 schwarze 287: mandoc_msg_setoutfile(stdout);
288: mandoc_msg_setmin(MANDOCERR_BASE);
289: } else if (strcmp(optarg, "tree") == 0)
1.335 schwarze 290: outst.outtype = OUTT_TREE;
1.329 schwarze 291: else if (strcmp(optarg, "man") == 0)
1.335 schwarze 292: outst.outtype = OUTT_MAN;
1.329 schwarze 293: else if (strcmp(optarg, "html") == 0)
1.335 schwarze 294: outst.outtype = OUTT_HTML;
1.329 schwarze 295: else if (strcmp(optarg, "markdown") == 0)
1.335 schwarze 296: outst.outtype = OUTT_MARKDOWN;
1.329 schwarze 297: else if (strcmp(optarg, "utf8") == 0)
1.335 schwarze 298: outst.outtype = OUTT_UTF8;
1.329 schwarze 299: else if (strcmp(optarg, "locale") == 0)
1.335 schwarze 300: outst.outtype = OUTT_LOCALE;
1.329 schwarze 301: else if (strcmp(optarg, "ps") == 0)
1.335 schwarze 302: outst.outtype = OUTT_PS;
1.329 schwarze 303: else if (strcmp(optarg, "pdf") == 0)
1.335 schwarze 304: outst.outtype = OUTT_PDF;
1.329 schwarze 305: else {
306: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0,
307: "-T %s", optarg);
308: return mandoc_msg_getrc();
309: }
1.1 kristaps 310: break;
1.173 schwarze 311: case 'W':
1.335 schwarze 312: if (woptions(optarg, &os_e, &outst.wstop) == -1)
1.329 schwarze 313: return mandoc_msg_getrc();
1.1 kristaps 314: break;
1.181 schwarze 315: case 'w':
316: outmode = OUTMODE_FLN;
317: break;
1.1 kristaps 318: default:
1.180 schwarze 319: show_usage = 1;
320: break;
1.1 kristaps 321: }
1.180 schwarze 322: }
323:
324: if (show_usage)
325: usage(search.argmode);
326:
1.185 schwarze 327: /* Postprocess options. */
328:
1.181 schwarze 329: if (outmode == OUTMODE_DEF) {
330: switch (search.argmode) {
331: case ARG_FILE:
332: outmode = OUTMODE_ALL;
1.336 schwarze 333: outst.use_pager = 0;
1.181 schwarze 334: break;
335: case ARG_NAME:
336: outmode = OUTMODE_ONE;
337: break;
338: default:
339: outmode = OUTMODE_LST;
340: break;
1.282 schwarze 341: }
342: }
343:
344: if (oarg != NULL) {
345: if (outmode == OUTMODE_LST)
346: search.outkey = oarg;
347: else {
348: while (oarg != NULL) {
349: if (manconf_output(&conf.output,
1.327 schwarze 350: strsep(&oarg, ","), 0) == -1)
1.329 schwarze 351: return mandoc_msg_getrc();
1.282 schwarze 352: }
1.181 schwarze 353: }
354: }
355:
1.335 schwarze 356: if (outst.outtype != OUTT_TREE || conf.output.noval == 0)
1.315 schwarze 357: options |= MPARSE_VALIDATE;
358:
1.246 schwarze 359: if (outmode == OUTMODE_FLN ||
360: outmode == OUTMODE_LST ||
361: !isatty(STDOUT_FILENO))
1.336 schwarze 362: outst.use_pager = 0;
1.304 schwarze 363:
1.336 schwarze 364: if (outst.use_pager &&
1.304 schwarze 365: (conf.output.width == 0 || conf.output.indent == 0) &&
1.306 schwarze 366: ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 &&
367: ws.ws_col > 1) {
1.304 schwarze 368: if (conf.output.width == 0 && ws.ws_col < 79)
369: conf.output.width = ws.ws_col - 1;
370: if (conf.output.indent == 0 && ws.ws_col < 66)
371: conf.output.indent = 3;
372: }
1.246 schwarze 373:
1.255 schwarze 374: #if HAVE_PLEDGE
1.336 schwarze 375: if (outst.use_pager == 0) {
1.329 schwarze 376: if (pledge("stdio rpath", NULL) == -1) {
377: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
378: "%s", strerror(errno));
379: return mandoc_msg_getrc();
380: }
381: }
1.255 schwarze 382: #endif
383:
1.185 schwarze 384: /* Parse arguments. */
385:
1.219 schwarze 386: if (argc > 0) {
387: argc -= optind;
388: argv += optind;
389: }
1.185 schwarze 390:
1.202 schwarze 391: /*
1.338 schwarze 392: * Quirks for help(1) and man(1),
393: * in particular for a section argument without -s.
1.202 schwarze 394: */
395:
396: if (search.argmode == ARG_NAME) {
1.254 schwarze 397: if (*progname == 'h') {
1.202 schwarze 398: if (argc == 0) {
399: argv = help_argv;
400: argc = 1;
401: }
1.211 schwarze 402: } else if (argc > 1 &&
1.223 kristaps 403: ((uc = (unsigned char *)argv[0]) != NULL) &&
1.207 schwarze 404: ((isdigit(uc[0]) && (uc[1] == '\0' ||
1.324 schwarze 405: isalpha(uc[1]))) ||
1.207 schwarze 406: (uc[0] == 'n' && uc[1] == '\0'))) {
1.223 kristaps 407: search.sec = (char *)uc;
1.202 schwarze 408: argv++;
409: argc--;
410: }
1.216 schwarze 411: if (search.arch == NULL)
412: search.arch = getenv("MACHINE");
1.223 kristaps 413: #ifdef MACHINE
1.216 schwarze 414: if (search.arch == NULL)
415: search.arch = MACHINE;
1.223 kristaps 416: #endif
1.338 schwarze 417: if (outmode == OUTMODE_ONE)
418: search.firstmatch = 1;
1.185 schwarze 419: }
1.182 schwarze 420:
1.316 schwarze 421: /*
422: * Use the first argument for -O tag in addition to
423: * using it as a search term for man(1) or apropos(1).
424: */
425:
426: if (conf.output.tag != NULL && *conf.output.tag == '\0') {
427: tagarg = argc > 0 && search.argmode == ARG_EXPR ?
428: strchr(*argv, '=') : NULL;
429: conf.output.tag = tagarg == NULL ? *argv : tagarg + 1;
430: }
431:
1.338 schwarze 432: /* Read the configuration file. */
1.180 schwarze 433:
1.338 schwarze 434: if (search.argmode != ARG_FILE)
435: manconf_parse(&conf, conf_file, defpaths, auxpaths);
1.182 schwarze 436:
1.338 schwarze 437: /* man(1): Resolve each name individually. */
1.182 schwarze 438:
1.338 schwarze 439: if (search.argmode == ARG_NAME) {
440: if (argc < 1)
441: usage(ARG_NAME);
442: for (res = NULL, ressz = 0; argc > 0; argc--, argv++) {
443: (void)mansearch(&search, &conf.manpath,
444: 1, argv, &resn, &resnsz);
445: if (resnsz == 0)
446: (void)fs_search(&search, &conf.manpath,
1.340 schwarze 447: *argv, &resn, &resnsz);
448: if (resnsz == 0 && strchr(*argv, '/') == NULL) {
449: if (search.arch != NULL &&
450: arch_valid(search.arch, OSENUM) == 0)
451: warnx("Unknown architecture \"%s\".",
452: search.arch);
453: else if (search.sec != NULL)
454: warnx("No entry for %s in "
455: "section %s of the manual.",
456: *argv, search.sec);
457: else
458: warnx("No entry for %s in "
459: "the manual.", *argv);
460: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
461: continue;
462: }
1.338 schwarze 463: if (resnsz == 0) {
464: if (access(*argv, R_OK) == -1) {
465: mandoc_msg_setinfilename(*argv);
1.329 schwarze 466: mandoc_msg(MANDOCERR_BADARG_BAD,
467: 0, 0, "%s", strerror(errno));
468: mandoc_msg_setinfilename(NULL);
1.305 schwarze 469: continue;
470: }
1.338 schwarze 471: resnsz = 1;
472: resn = mandoc_calloc(resnsz, sizeof(*res));
473: resn->file = mandoc_strdup(*argv);
474: resn->ipath = SIZE_MAX;
475: resn->form = FORM_SRC;
476: }
477: if (outmode != OUTMODE_ONE || resnsz == 1) {
1.305 schwarze 478: res = mandoc_reallocarray(res,
1.338 schwarze 479: ressz + resnsz, sizeof(*res));
480: memcpy(res + ressz, resn,
481: sizeof(*resn) * resnsz);
482: ressz += resnsz;
483: continue;
1.305 schwarze 484: }
1.187 schwarze 485:
1.338 schwarze 486: /* Search for the best section. */
1.182 schwarze 487:
1.325 schwarze 488: best_prio = 40;
1.338 schwarze 489: for (ib = i = 0; i < resnsz; i++) {
490: sec = resn[i].file;
1.264 schwarze 491: sec += strcspn(sec, "123456789");
492: if (sec[0] == '\0')
1.325 schwarze 493: continue; /* No section at all. */
1.264 schwarze 494: prio = sec_prios[sec[0] - '1'];
1.325 schwarze 495: if (search.sec != NULL) {
496: ssz = strlen(search.sec);
497: if (strncmp(sec, search.sec, ssz) == 0)
498: sec += ssz;
499: } else
500: sec++; /* Prefer without suffix. */
501: if (*sec != '/')
502: prio += 10; /* Wrong dir name. */
503: if (search.sec != NULL &&
504: (strlen(sec) <= ssz + 3 ||
505: strcmp(sec + strlen(sec) - ssz,
506: search.sec) != 0))
507: prio += 20; /* Wrong file ext. */
1.182 schwarze 508: if (prio >= best_prio)
509: continue;
510: best_prio = prio;
1.338 schwarze 511: ib = i;
1.182 schwarze 512: }
1.338 schwarze 513: res = mandoc_reallocarray(res, ressz + 1,
514: sizeof(*res));
515: memcpy(res + ressz++, resn + ib, sizeof(*resn));
1.181 schwarze 516: }
1.182 schwarze 517:
1.338 schwarze 518: /* apropos(1), whatis(1): Process the full search expression. */
519:
520: } else if (search.argmode != ARG_FILE) {
521: if (mansearch(&search, &conf.manpath,
522: argc, argv, &res, &ressz) == 0)
523: usage(search.argmode);
1.182 schwarze 524:
1.338 schwarze 525: if (ressz == 0) {
526: warnx("nothing appropriate");
527: mandoc_msg_setrc(MANDOCLEVEL_BADARG);
1.182 schwarze 528: goto out;
1.338 schwarze 529: }
530:
531: /* mandoc(1): Take command line arguments as file names. */
532:
1.337 schwarze 533: } else {
1.338 schwarze 534: ressz = argc > 0 ? argc : 1;
535: res = mandoc_calloc(ressz, sizeof(*res));
536: for (i = 0; i < ressz; i++) {
1.337 schwarze 537: if (argc > 0)
538: res[i].file = mandoc_strdup(argv[i]);
539: res[i].ipath = SIZE_MAX;
540: res[i].form = FORM_SRC;
541: }
1.180 schwarze 542: }
543:
1.338 schwarze 544: switch (outmode) {
545: case OUTMODE_FLN:
546: for (i = 0; i < ressz; i++)
547: puts(res[i].file);
548: goto out;
549: case OUTMODE_LST:
550: for (i = 0; i < ressz; i++)
551: printf("%s - %s\n", res[i].names,
552: res[i].output == NULL ? "" :
553: res[i].output);
554: goto out;
555: default:
556: break;
557: }
1.255 schwarze 558:
1.329 schwarze 559: if (search.argmode == ARG_FILE && auxpaths != NULL) {
560: if (strcmp(auxpaths, "doc") == 0)
561: options |= MPARSE_MDOC;
562: else if (strcmp(auxpaths, "an") == 0)
563: options |= MPARSE_MAN;
564: }
1.241 schwarze 565:
1.249 schwarze 566: mchars_alloc();
1.334 schwarze 567: mp = mparse_alloc(options, os_e, os_s);
1.154 kristaps 568:
1.305 schwarze 569: /*
570: * Remember the original working directory, if possible.
571: * This will be needed if some names on the command line
572: * are page names and some are relative file names.
573: * Do not error out if the current directory is not
574: * readable: Maybe it won't be needed after all.
575: */
576: startdir = open(".", O_RDONLY | O_DIRECTORY);
577:
1.338 schwarze 578: for (i = 0; i < ressz; i++) {
579: process_onefile(mp, res + i, startdir, &outst, &conf);
1.335 schwarze 580: if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.64 kristaps 581: break;
1.1 kristaps 582: }
1.305 schwarze 583: if (startdir != -1) {
584: (void)fchdir(startdir);
585: close(startdir);
586: }
1.1 kristaps 587:
1.335 schwarze 588: if (outst.outdata != NULL) {
589: switch (outst.outtype) {
1.252 schwarze 590: case OUTT_HTML:
1.335 schwarze 591: html_free(outst.outdata);
1.252 schwarze 592: break;
593: case OUTT_UTF8:
594: case OUTT_LOCALE:
595: case OUTT_ASCII:
1.335 schwarze 596: ascii_free(outst.outdata);
1.252 schwarze 597: break;
598: case OUTT_PDF:
599: case OUTT_PS:
1.335 schwarze 600: pspdf_free(outst.outdata);
1.252 schwarze 601: break;
602: default:
603: break;
604: }
1.250 schwarze 605: }
1.294 schwarze 606: mandoc_xr_free();
1.334 schwarze 607: mparse_free(mp);
1.249 schwarze 608: mchars_free();
1.182 schwarze 609:
610: out:
1.338 schwarze 611: mansearch_free(res, ressz);
1.337 schwarze 612: if (search.argmode != ARG_FILE)
1.229 schwarze 613: manconf_free(&conf);
1.1 kristaps 614:
1.336 schwarze 615: if (outst.tag_files != NULL) {
1.225 schwarze 616: fclose(stdout);
1.239 schwarze 617: tag_write();
1.336 schwarze 618: run_pager(outst.tag_files);
1.239 schwarze 619: tag_unlink();
1.337 schwarze 620: } else if (outst.had_output && outst.outtype != OUTT_LINT)
1.330 schwarze 621: mandoc_msg_summary();
622:
1.312 schwarze 623: return (int)mandoc_msg_getrc();
1.1 kristaps 624: }
625:
1.55 kristaps 626: static void
1.180 schwarze 627: usage(enum argmode argmode)
1.1 kristaps 628: {
1.180 schwarze 629: switch (argmode) {
630: case ARG_FILE:
1.287 schwarze 631: fputs("usage: mandoc [-ac] [-I os=name] "
632: "[-K encoding] [-mdoc | -man] [-O options]\n"
1.228 schwarze 633: "\t [-T output] [-W level] [file ...]\n", stderr);
1.180 schwarze 634: break;
635: case ARG_NAME:
1.287 schwarze 636: fputs("usage: man [-acfhklw] [-C file] [-M path] "
637: "[-m path] [-S subsection]\n"
638: "\t [[-s] section] name ...\n", stderr);
1.180 schwarze 639: break;
640: case ARG_WORD:
1.287 schwarze 641: fputs("usage: whatis [-afk] [-C file] "
1.188 schwarze 642: "[-M path] [-m path] [-O outkey] [-S arch]\n"
643: "\t [-s section] name ...\n", stderr);
1.180 schwarze 644: break;
645: case ARG_EXPR:
1.287 schwarze 646: fputs("usage: apropos [-afk] [-C file] "
1.188 schwarze 647: "[-M path] [-m path] [-O outkey] [-S arch]\n"
1.180 schwarze 648: "\t [-s section] expression ...\n", stderr);
649: break;
650: }
1.105 kristaps 651: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 652: }
1.213 schwarze 653:
654: static int
655: fs_lookup(const struct manpaths *paths, size_t ipath,
656: const char *sec, const char *arch, const char *name,
657: struct manpage **res, size_t *ressz)
658: {
1.326 schwarze 659: struct stat sb;
1.222 schwarze 660: glob_t globinfo;
1.213 schwarze 661: struct manpage *page;
662: char *file;
1.274 schwarze 663: int globres;
664: enum form form;
1.213 schwarze 665:
1.222 schwarze 666: form = FORM_SRC;
1.213 schwarze 667: mandoc_asprintf(&file, "%s/man%s/%s.%s",
668: paths->paths[ipath], sec, name, sec);
1.326 schwarze 669: if (stat(file, &sb) != -1)
1.213 schwarze 670: goto found;
671: free(file);
672:
673: mandoc_asprintf(&file, "%s/cat%s/%s.0",
674: paths->paths[ipath], sec, name);
1.326 schwarze 675: if (stat(file, &sb) != -1) {
1.213 schwarze 676: form = FORM_CAT;
677: goto found;
678: }
679: free(file);
680:
681: if (arch != NULL) {
682: mandoc_asprintf(&file, "%s/man%s/%s/%s.%s",
683: paths->paths[ipath], sec, arch, name, sec);
1.326 schwarze 684: if (stat(file, &sb) != -1)
1.213 schwarze 685: goto found;
686: free(file);
687: }
1.222 schwarze 688:
1.240 schwarze 689: mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
1.222 schwarze 690: paths->paths[ipath], sec, name);
691: globres = glob(file, 0, NULL, &globinfo);
692: if (globres != 0 && globres != GLOB_NOMATCH)
1.329 schwarze 693: mandoc_msg(MANDOCERR_GLOB, 0, 0,
694: "%s: %s", file, strerror(errno));
1.222 schwarze 695: free(file);
696: if (globres == 0)
697: file = mandoc_strdup(*globinfo.gl_pathv);
698: globfree(&globinfo);
1.326 schwarze 699: if (globres == 0) {
700: if (stat(file, &sb) != -1)
701: goto found;
702: free(file);
703: }
1.296 schwarze 704: if (res != NULL || ipath + 1 != paths->sz)
1.329 schwarze 705: return -1;
1.213 schwarze 706:
1.296 schwarze 707: mandoc_asprintf(&file, "%s.%s", name, sec);
1.326 schwarze 708: globres = stat(file, &sb);
1.296 schwarze 709: free(file);
1.329 schwarze 710: return globres;
1.296 schwarze 711:
1.213 schwarze 712: found:
1.266 schwarze 713: warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s",
714: name, sec, BINM_MAKEWHATIS, paths->paths[ipath]);
1.296 schwarze 715: if (res == NULL) {
716: free(file);
1.329 schwarze 717: return 0;
1.296 schwarze 718: }
1.329 schwarze 719: *res = mandoc_reallocarray(*res, ++*ressz, sizeof(**res));
1.213 schwarze 720: page = *res + (*ressz - 1);
721: page->file = file;
722: page->names = NULL;
723: page->output = NULL;
1.323 schwarze 724: page->bits = NAME_FILE & NAME_MASK;
1.213 schwarze 725: page->ipath = ipath;
726: page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10;
727: page->form = form;
1.329 schwarze 728: return 0;
1.213 schwarze 729: }
730:
1.295 schwarze 731: static int
1.213 schwarze 732: fs_search(const struct mansearch *cfg, const struct manpaths *paths,
1.340 schwarze 733: const char *name, struct manpage **res, size_t *ressz)
1.213 schwarze 734: {
735: const char *const sections[] =
1.264 schwarze 736: {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"};
1.213 schwarze 737: const size_t nsec = sizeof(sections)/sizeof(sections[0]);
738:
1.340 schwarze 739: size_t ipath, isec;
1.213 schwarze 740:
741: assert(cfg->argmode == ARG_NAME);
1.295 schwarze 742: if (res != NULL)
743: *res = NULL;
1.340 schwarze 744: *ressz = 0;
745: for (ipath = 0; ipath < paths->sz; ipath++) {
746: if (cfg->sec != NULL) {
747: if (fs_lookup(paths, ipath, cfg->sec, cfg->arch,
748: name, res, ressz) != -1 && cfg->firstmatch)
749: return 0;
750: } else {
751: for (isec = 0; isec < nsec; isec++)
1.213 schwarze 752: if (fs_lookup(paths, ipath, sections[isec],
1.340 schwarze 753: cfg->arch, name, res, ressz) != -1 &&
1.213 schwarze 754: cfg->firstmatch)
1.329 schwarze 755: return 0;
1.213 schwarze 756: }
757: }
1.329 schwarze 758: return -1;
1.213 schwarze 759: }
1.68 joerg 760:
1.64 kristaps 761: static void
1.337 schwarze 762: process_onefile(struct mparse *mp, struct manpage *resp, int startdir,
763: struct outstate *outst, struct manconf *conf)
764: {
765: int fd;
766:
767: /*
768: * Changing directories is not needed in ARG_FILE mode.
769: * Do it on a best-effort basis. Even in case of
770: * failure, some functionality may still work.
771: */
772: if (resp->ipath != SIZE_MAX)
773: (void)chdir(conf->manpath.paths[resp->ipath]);
774: else if (startdir != -1)
775: (void)fchdir(startdir);
776:
777: mandoc_msg_setinfilename(resp->file);
778: if (resp->file != NULL) {
779: if ((fd = mparse_open(mp, resp->file)) == -1) {
780: mandoc_msg(resp->ipath == SIZE_MAX ?
781: MANDOCERR_BADARG_BAD : MANDOCERR_OPEN,
782: 0, 0, "%s", strerror(errno));
783: mandoc_msg_setinfilename(NULL);
784: return;
785: }
786: } else
787: fd = STDIN_FILENO;
788:
789: if (outst->use_pager) {
790: outst->use_pager = 0;
791: outst->tag_files = tag_init(conf->output.tag);
792: }
793:
794: if (outst->had_output && outst->outtype <= OUTT_UTF8) {
795: if (outst->outdata == NULL)
796: outdata_alloc(outst, &conf->output);
797: terminal_sepline(outst->outdata);
798: }
799:
800: if (resp->form == FORM_SRC)
801: parse(mp, fd, resp->file, outst, &conf->output);
802: else {
803: passthrough(fd, conf->output.synopsisonly);
804: outst->had_output = 1;
805: }
806:
807: if (ferror(stdout)) {
808: if (outst->tag_files != NULL) {
809: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s",
810: outst->tag_files->ofn, strerror(errno));
811: tag_unlink();
812: outst->tag_files = NULL;
813: } else
814: mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s",
815: strerror(errno));
816: }
817: mandoc_msg_setinfilename(NULL);
818: }
819:
820: static void
1.335 schwarze 821: parse(struct mparse *mp, int fd, const char *file,
822: struct outstate *outst, struct manoutput *outconf)
1.1 kristaps 823: {
1.337 schwarze 824: static int previous;
825: struct roff_meta *meta;
1.112 kristaps 826:
1.337 schwarze 827: assert(fd >= 0);
828: if (file == NULL)
829: file = "<stdin>";
1.112 kristaps 830:
1.337 schwarze 831: if (previous)
832: mparse_reset(mp);
833: else
834: previous = 1;
1.112 kristaps 835:
1.334 schwarze 836: mparse_readfd(mp, fd, file);
1.261 schwarze 837: if (fd != STDIN_FILENO)
838: close(fd);
1.112 kristaps 839:
1.1 kristaps 840: /*
1.154 kristaps 841: * With -Wstop and warnings or errors of at least the requested
842: * level, do not produce output.
1.1 kristaps 843: */
844:
1.335 schwarze 845: if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK)
1.227 schwarze 846: return;
1.111 kristaps 847:
1.335 schwarze 848: if (outst->outdata == NULL)
849: outdata_alloc(outst, outconf);
850: else if (outst->outtype == OUTT_HTML)
851: html_reset(outst);
1.111 kristaps 852:
1.315 schwarze 853: mandoc_xr_reset();
1.334 schwarze 854: meta = mparse_result(mp);
1.250 schwarze 855:
856: /* Execute the out device, if it exists. */
857:
1.337 schwarze 858: outst->had_output = 1;
1.315 schwarze 859: if (meta->macroset == MACROSET_MDOC) {
1.335 schwarze 860: switch (outst->outtype) {
1.173 schwarze 861: case OUTT_HTML:
1.335 schwarze 862: html_mdoc(outst->outdata, meta);
1.111 kristaps 863: break;
1.173 schwarze 864: case OUTT_TREE:
1.335 schwarze 865: tree_mdoc(outst->outdata, meta);
1.111 kristaps 866: break;
1.173 schwarze 867: case OUTT_MAN:
1.335 schwarze 868: man_mdoc(outst->outdata, meta);
1.164 schwarze 869: break;
1.173 schwarze 870: case OUTT_PDF:
871: case OUTT_ASCII:
872: case OUTT_UTF8:
873: case OUTT_LOCALE:
874: case OUTT_PS:
1.335 schwarze 875: terminal_mdoc(outst->outdata, meta);
1.250 schwarze 876: break;
1.285 schwarze 877: case OUTT_MARKDOWN:
1.335 schwarze 878: markdown_mdoc(outst->outdata, meta);
1.285 schwarze 879: break;
1.250 schwarze 880: default:
881: break;
882: }
883: }
1.315 schwarze 884: if (meta->macroset == MACROSET_MAN) {
1.335 schwarze 885: switch (outst->outtype) {
1.250 schwarze 886: case OUTT_HTML:
1.335 schwarze 887: html_man(outst->outdata, meta);
1.250 schwarze 888: break;
889: case OUTT_TREE:
1.335 schwarze 890: tree_man(outst->outdata, meta);
1.250 schwarze 891: break;
892: case OUTT_MAN:
1.334 schwarze 893: mparse_copy(mp);
1.250 schwarze 894: break;
895: case OUTT_PDF:
896: case OUTT_ASCII:
897: case OUTT_UTF8:
898: case OUTT_LOCALE:
899: case OUTT_PS:
1.335 schwarze 900: terminal_man(outst->outdata, meta);
1.111 kristaps 901: break;
902: default:
903: break;
904: }
1.276 schwarze 905: }
1.312 schwarze 906: if (mandoc_msg_getmin() < MANDOCERR_STYLE)
907: check_xr();
1.294 schwarze 908: }
909:
910: static void
1.312 schwarze 911: check_xr(void)
1.294 schwarze 912: {
913: static struct manpaths paths;
914: struct mansearch search;
915: struct mandoc_xr *xr;
916: size_t sz;
917:
918: if (paths.sz == 0)
919: manpath_base(&paths);
920:
921: for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) {
1.297 schwarze 922: if (xr->line == -1)
923: continue;
1.294 schwarze 924: search.arch = NULL;
925: search.sec = xr->sec;
926: search.outkey = NULL;
927: search.argmode = ARG_NAME;
928: search.firstmatch = 1;
929: if (mansearch(&search, &paths, 1, &xr->name, NULL, &sz))
1.295 schwarze 930: continue;
1.340 schwarze 931: if (fs_search(&search, &paths, xr->name, NULL, &sz) != -1)
1.294 schwarze 932: continue;
1.298 schwarze 933: if (xr->count == 1)
1.313 schwarze 934: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
935: xr->pos + 1, "Xr %s %s", xr->name, xr->sec);
1.298 schwarze 936: else
1.313 schwarze 937: mandoc_msg(MANDOCERR_XR_BAD, xr->line,
938: xr->pos + 1, "Xr %s %s (%d times)",
1.298 schwarze 939: xr->name, xr->sec, xr->count);
1.294 schwarze 940: }
1.276 schwarze 941: }
942:
943: static void
1.335 schwarze 944: outdata_alloc(struct outstate *outst, struct manoutput *outconf)
1.276 schwarze 945: {
1.335 schwarze 946: switch (outst->outtype) {
1.276 schwarze 947: case OUTT_HTML:
1.335 schwarze 948: outst->outdata = html_alloc(outconf);
1.276 schwarze 949: break;
950: case OUTT_UTF8:
1.335 schwarze 951: outst->outdata = utf8_alloc(outconf);
1.276 schwarze 952: break;
953: case OUTT_LOCALE:
1.335 schwarze 954: outst->outdata = locale_alloc(outconf);
1.276 schwarze 955: break;
956: case OUTT_ASCII:
1.335 schwarze 957: outst->outdata = ascii_alloc(outconf);
1.276 schwarze 958: break;
959: case OUTT_PDF:
1.335 schwarze 960: outst->outdata = pdf_alloc(outconf);
1.276 schwarze 961: break;
962: case OUTT_PS:
1.335 schwarze 963: outst->outdata = ps_alloc(outconf);
1.276 schwarze 964: break;
965: default:
966: break;
1.111 kristaps 967: }
1.186 schwarze 968: }
969:
1.227 schwarze 970: static void
1.329 schwarze 971: passthrough(int fd, int synopsis_only)
1.186 schwarze 972: {
1.197 schwarze 973: const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS";
974: const char synr[] = "SYNOPSIS";
975:
976: FILE *stream;
1.257 schwarze 977: char *line, *cp;
978: size_t linesz;
1.277 schwarze 979: ssize_t len, written;
1.329 schwarze 980: int lno, print;
1.210 schwarze 981:
1.329 schwarze 982: stream = NULL;
1.257 schwarze 983: line = NULL;
984: linesz = 0;
1.197 schwarze 985:
1.277 schwarze 986: if (fflush(stdout) == EOF) {
1.329 schwarze 987: mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno));
988: goto done;
1.277 schwarze 989: }
1.197 schwarze 990: if ((stream = fdopen(fd, "r")) == NULL) {
991: close(fd);
1.329 schwarze 992: mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno));
993: goto done;
1.197 schwarze 994: }
1.186 schwarze 995:
1.329 schwarze 996: lno = print = 0;
1.277 schwarze 997: while ((len = getline(&line, &linesz, stream)) != -1) {
1.329 schwarze 998: lno++;
1.257 schwarze 999: cp = line;
1.197 schwarze 1000: if (synopsis_only) {
1001: if (print) {
1.257 schwarze 1002: if ( ! isspace((unsigned char)*cp))
1.197 schwarze 1003: goto done;
1.277 schwarze 1004: while (isspace((unsigned char)*cp)) {
1.257 schwarze 1005: cp++;
1.277 schwarze 1006: len--;
1007: }
1.197 schwarze 1008: } else {
1.257 schwarze 1009: if (strcmp(cp, synb) == 0 ||
1010: strcmp(cp, synr) == 0)
1.197 schwarze 1011: print = 1;
1012: continue;
1013: }
1014: }
1.277 schwarze 1015: for (; len > 0; len -= written) {
1.329 schwarze 1016: if ((written = write(STDOUT_FILENO, cp, len)) == -1) {
1017: mandoc_msg(MANDOCERR_WRITE, 0, 0,
1018: "%s", strerror(errno));
1019: goto done;
1020: }
1.257 schwarze 1021: }
1.197 schwarze 1022: }
1.329 schwarze 1023: if (ferror(stream))
1024: mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno));
1.193 schwarze 1025:
1.197 schwarze 1026: done:
1.257 schwarze 1027: free(line);
1.329 schwarze 1028: if (stream != NULL)
1029: fclose(stream);
1.1 kristaps 1030: }
1031:
1032: static int
1.334 schwarze 1033: woptions(char *arg, enum mandoc_os *os_e, int *wstop)
1.1 kristaps 1034: {
1.34 kristaps 1035: char *v, *o;
1.293 schwarze 1036: const char *toks[11];
1.1 kristaps 1037:
1.103 schwarze 1038: toks[0] = "stop";
1039: toks[1] = "all";
1.293 schwarze 1040: toks[2] = "base";
1041: toks[3] = "style";
1042: toks[4] = "warning";
1043: toks[5] = "error";
1044: toks[6] = "unsupp";
1045: toks[7] = "fatal";
1046: toks[8] = "openbsd";
1047: toks[9] = "netbsd";
1048: toks[10] = NULL;
1.1 kristaps 1049:
1.34 kristaps 1050: while (*arg) {
1051: o = arg;
1.272 schwarze 1052: switch (getsubopt(&arg, (char * const *)toks, &v)) {
1.173 schwarze 1053: case 0:
1.334 schwarze 1054: *wstop = 1;
1.1 kristaps 1055: break;
1.173 schwarze 1056: case 1:
1057: case 2:
1.312 schwarze 1058: mandoc_msg_setmin(MANDOCERR_BASE);
1.290 schwarze 1059: break;
1060: case 3:
1.312 schwarze 1061: mandoc_msg_setmin(MANDOCERR_STYLE);
1.1 kristaps 1062: break;
1.290 schwarze 1063: case 4:
1.312 schwarze 1064: mandoc_msg_setmin(MANDOCERR_WARNING);
1.24 kristaps 1065: break;
1.290 schwarze 1066: case 5:
1.312 schwarze 1067: mandoc_msg_setmin(MANDOCERR_ERROR);
1.217 schwarze 1068: break;
1.290 schwarze 1069: case 6:
1.312 schwarze 1070: mandoc_msg_setmin(MANDOCERR_UNSUPP);
1.293 schwarze 1071: break;
1072: case 7:
1.329 schwarze 1073: mandoc_msg_setmin(MANDOCERR_BADARG);
1.293 schwarze 1074: break;
1075: case 8:
1.312 schwarze 1076: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1077: *os_e = MANDOC_OS_OPENBSD;
1.293 schwarze 1078: break;
1079: case 9:
1.312 schwarze 1080: mandoc_msg_setmin(MANDOCERR_BASE);
1.334 schwarze 1081: *os_e = MANDOC_OS_NETBSD;
1.50 kristaps 1082: break;
1.1 kristaps 1083: default:
1.329 schwarze 1084: mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o);
1085: return -1;
1.1 kristaps 1086: }
1.34 kristaps 1087: }
1.329 schwarze 1088: return 0;
1.333 schwarze 1089: }
1090:
1091: /*
1092: * Wait until moved to the foreground,
1093: * then fork the pager and wait for the user to close it.
1094: */
1095: static void
1096: run_pager(struct tag_files *tag_files)
1097: {
1098: int signum, status;
1099: pid_t man_pgid, tc_pgid;
1100: pid_t pager_pid, wait_pid;
1101:
1102: man_pgid = getpgid(0);
1103: tag_files->tcpgid = man_pgid == getpid() ? getpgid(getppid()) :
1104: man_pgid;
1105: pager_pid = 0;
1106: signum = SIGSTOP;
1107:
1108: for (;;) {
1109: /* Stop here until moved to the foreground. */
1110:
1111: tc_pgid = tcgetpgrp(tag_files->ofd);
1112: if (tc_pgid != man_pgid) {
1113: if (tc_pgid == pager_pid) {
1114: (void)tcsetpgrp(tag_files->ofd, man_pgid);
1115: if (signum == SIGTTIN)
1116: continue;
1117: } else
1118: tag_files->tcpgid = tc_pgid;
1119: kill(0, signum);
1120: continue;
1121: }
1122:
1123: /* Once in the foreground, activate the pager. */
1124:
1125: if (pager_pid) {
1126: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1127: kill(pager_pid, SIGCONT);
1128: } else
1129: pager_pid = spawn_pager(tag_files);
1130:
1131: /* Wait for the pager to stop or exit. */
1132:
1133: while ((wait_pid = waitpid(pager_pid, &status,
1134: WUNTRACED)) == -1 && errno == EINTR)
1135: continue;
1136:
1137: if (wait_pid == -1) {
1138: mandoc_msg(MANDOCERR_WAIT, 0, 0,
1139: "%s", strerror(errno));
1140: break;
1141: }
1142: if (!WIFSTOPPED(status))
1143: break;
1144:
1145: signum = WSTOPSIG(status);
1146: }
1.183 schwarze 1147: }
1148:
1.225 schwarze 1149: static pid_t
1.244 schwarze 1150: spawn_pager(struct tag_files *tag_files)
1.183 schwarze 1151: {
1.265 schwarze 1152: const struct timespec timeout = { 0, 100000000 }; /* 0.1s */
1.184 schwarze 1153: #define MAX_PAGER_ARGS 16
1154: char *argv[MAX_PAGER_ARGS];
1155: const char *pager;
1156: char *cp;
1.322 schwarze 1157: #if HAVE_LESS_T
1.239 schwarze 1158: size_t cmdlen;
1.322 schwarze 1159: #endif
1.309 schwarze 1160: int argc, use_ofn;
1.225 schwarze 1161: pid_t pager_pid;
1.183 schwarze 1162:
1.239 schwarze 1163: pager = getenv("MANPAGER");
1164: if (pager == NULL || *pager == '\0')
1165: pager = getenv("PAGER");
1166: if (pager == NULL || *pager == '\0')
1167: pager = "more -s";
1168: cp = mandoc_strdup(pager);
1169:
1170: /*
1171: * Parse the pager command into words.
1172: * Intentionally do not do anything fancy here.
1173: */
1174:
1175: argc = 0;
1.309 schwarze 1176: while (argc + 5 < MAX_PAGER_ARGS) {
1.239 schwarze 1177: argv[argc++] = cp;
1178: cp = strchr(cp, ' ');
1179: if (cp == NULL)
1180: break;
1181: *cp++ = '\0';
1182: while (*cp == ' ')
1183: cp++;
1184: if (*cp == '\0')
1185: break;
1186: }
1187:
1.268 schwarze 1188: /* For less(1), use the tag file. */
1.239 schwarze 1189:
1.309 schwarze 1190: use_ofn = 1;
1.322 schwarze 1191: #if HAVE_LESS_T
1.332 schwarze 1192: if (*tag_files->tfn != '\0' && (cmdlen = strlen(argv[0])) >= 4) {
1.239 schwarze 1193: cp = argv[0] + cmdlen - 4;
1.268 schwarze 1194: if (strcmp(cp, "less") == 0) {
1.244 schwarze 1195: argv[argc++] = mandoc_strdup("-T");
1196: argv[argc++] = tag_files->tfn;
1.309 schwarze 1197: if (tag_files->tagname != NULL) {
1198: argv[argc++] = mandoc_strdup("-t");
1199: argv[argc++] = tag_files->tagname;
1200: use_ofn = 0;
1201: }
1.244 schwarze 1202: }
1.239 schwarze 1203: }
1.322 schwarze 1204: #endif
1.309 schwarze 1205: if (use_ofn)
1206: argv[argc++] = tag_files->ofn;
1.239 schwarze 1207: argv[argc] = NULL;
1208:
1.225 schwarze 1209: switch (pager_pid = fork()) {
1.183 schwarze 1210: case -1:
1.329 schwarze 1211: mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno));
1212: exit(mandoc_msg_getrc());
1.183 schwarze 1213: case 0:
1.224 schwarze 1214: break;
1215: default:
1.258 schwarze 1216: (void)setpgid(pager_pid, 0);
1.279 schwarze 1217: (void)tcsetpgrp(tag_files->ofd, pager_pid);
1.255 schwarze 1218: #if HAVE_PLEDGE
1.329 schwarze 1219: if (pledge("stdio rpath tmppath tty proc", NULL) == -1) {
1220: mandoc_msg(MANDOCERR_PLEDGE, 0, 0,
1221: "%s", strerror(errno));
1222: exit(mandoc_msg_getrc());
1223: }
1.255 schwarze 1224: #endif
1.259 schwarze 1225: tag_files->pager_pid = pager_pid;
1.245 schwarze 1226: return pager_pid;
1.184 schwarze 1227: }
1228:
1.224 schwarze 1229: /* The child process becomes the pager. */
1.184 schwarze 1230:
1.329 schwarze 1231: if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
1232: mandoc_msg(MANDOCERR_DUP, 0, 0, "%s", strerror(errno));
1233: _exit(mandoc_msg_getrc());
1234: }
1.244 schwarze 1235: close(tag_files->ofd);
1.303 schwarze 1236: assert(tag_files->tfd == -1);
1.265 schwarze 1237:
1238: /* Do not start the pager before controlling the terminal. */
1239:
1.279 schwarze 1240: while (tcgetpgrp(STDOUT_FILENO) != getpid())
1.265 schwarze 1241: nanosleep(&timeout, NULL);
1242:
1.184 schwarze 1243: execvp(argv[0], argv);
1.329 schwarze 1244: mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno));
1245: _exit(mandoc_msg_getrc());
1.71 kristaps 1246: }
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