diff options
Diffstat (limited to 'usr.bin/man/man.c')
| -rw-r--r-- | usr.bin/man/man.c | 939 |
1 files changed, 0 insertions, 939 deletions
diff --git a/usr.bin/man/man.c b/usr.bin/man/man.c deleted file mode 100644 index ed380019bbb..00000000000 --- a/usr.bin/man/man.c +++ /dev/null @@ -1,939 +0,0 @@ -/* $OpenBSD: man.c,v 1.49 2015/01/16 06:40:09 deraadt Exp $ */ -/* $NetBSD: man.c,v 1.7 1995/09/28 06:05:34 tls Exp $ */ - -/* - * Copyright (c) 2010, 2011, 2012 Ingo Schwarze <schwarze@openbsd.org> - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -/* - * Copyright (c) 1987, 1993, 1994, 1995 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/types.h> -#include <sys/queue.h> -#include <sys/stat.h> - -#include <ctype.h> -#include <err.h> -#include <errno.h> -#include <fcntl.h> -#include <fnmatch.h> -#include <glob.h> -#include <signal.h> -#include <stdio.h> -#include <libgen.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "config.h" -#include "pathnames.h" - -int f_all, f_where; -static char gbuf[MAXPATHLEN * 2]; -static TAG *section; - -extern char *__progname; - -static void clearlist(TAG *); -static void parse_path(TAG *, const char *); -static void append_subdirs(TAG *, const char *); -static void build_page(char *, char **); -static void cat(char *); -static int cleanup(int); -static void how(char *); -static void jump(char **, char *, char *); -static int manual(const char *, TAG *, glob_t *); -static void check_companion(char **, TAG *); -static void onsig(int); -static void usage(void); - -sigset_t blocksigs; - -int -main(int argc, char *argv[]) -{ - extern char *optarg; - extern int optind; - TAG *searchlist; - glob_t pg; - size_t len; - int ch, f_cat, f_how, found; - const char *pager, *p_path; - char **ap, *cmd, *machine, *p, *p_add, *sflag; - char *conffile; - - if (argv[1] == NULL && strcmp(basename(__progname), "help") == 0) { - static char *nargv[3]; - nargv[0] = "man"; - nargv[1] = "help"; - nargv[2] = NULL; - argv = nargv; - argc = 2; - } - - machine = sflag = NULL; - f_cat = f_how = 0; - conffile = p_add = NULL; - p_path = (const char *)NULL; - while ((ch = getopt(argc, argv, "aC:cfhkM:m:P:s:S:w-")) != -1) - switch (ch) { - case 'a': - f_all = 1; - break; - case 'C': - conffile = optarg; - break; - case 'c': - case '-': /* Deprecated. */ - f_cat = 1; - break; - case 'h': - f_how = 1; - break; - case 'm': - p_add = optarg; - break; - case 'M': - case 'P': /* Backward compatibility. */ - p_path = optarg; - break; - case 's': /* SVR4 compatibility. */ - sflag = optarg; - break; - case 'S': - machine = optarg; - break; - /* - * The -f and -k options are backward compatible - * ways of calling whatis(1) and apropos(1). - */ - case 'f': - jump(argv, "-f", "whatis"); - /* NOTREACHED */ - case 'k': - jump(argv, "-k", "apropos"); - /* NOTREACHED */ - case 'w': - f_where = 1; - break; - case '?': - default: - usage(); - } - argc -= optind; - argv += optind; - - if (!*argv) - usage(); - - if (!f_cat && !f_how && !f_where) { - if (!isatty(1)) - f_cat = 1; - else { - pager = getenv("MANPAGER"); - if (pager == NULL || *pager == '\0') - pager = getenv("PAGER"); - if (pager == NULL || *pager == '\0') - pager = _PATH_PAGER; - } - } - - /* Read the configuration file. */ - config(conffile); - - /* - * 1: If the user specified a section, - * use the section list from the configuration file. - * Otherwise, fall back to the default list or to an empty list. - */ - if (sflag && (section = getlist(sflag)) == NULL) - errx(1, "unknown manual section `%s'", sflag); - else if (argv[1] && (section = getlist(*argv)) != NULL) - ++argv; - - searchlist = section; - if (searchlist == NULL) - searchlist = getlist("_default"); - if (searchlist == NULL) - searchlist = addlist("_default"); - - /* - * 2: If the user set the -M option or defined the MANPATH variable, - * clear what we have and take the user's list instead. - */ - if (p_path == NULL) - p_path = getenv("MANPATH"); - - if (p_path) { - clearlist(searchlist); - parse_path(searchlist, p_path); - } - - /* - * 3: If the user set the -m option, insert the user's list before - * whatever list we have. - */ - if (p_add) - parse_path(searchlist, p_add); - - /* - * 4: Append the _subdir list where appropriate, - * and always append the machine type. - */ - if (machine || (machine = getenv("MACHINE"))) { - /* Avoid mangling argv/environment. */ - if ((machine = strdup(machine)) == NULL) - err(1, NULL); - for (p = machine; *p; ++p) - *p = tolower(*p); - } else - machine = MACHINE; - - append_subdirs(searchlist, machine); - - /* - * 5: Search for the files. Set up an interrupt handler, so the - * temporary files go away. - */ - (void)signal(SIGINT, onsig); - (void)signal(SIGHUP, onsig); - - sigemptyset(&blocksigs); - sigaddset(&blocksigs, SIGINT); - sigaddset(&blocksigs, SIGHUP); - - memset(&pg, 0, sizeof(pg)); - for (found = 0; *argv; ++argv) - if (manual(*argv, searchlist, &pg)) - found = 1; - - /* 6: If nothing found, we're done. */ - if (!found) { - (void)cleanup(0); - exit (1); - } - - /* 7: If it's simple, display it fast. */ - if (f_cat) { - for (ap = pg.gl_pathv; *ap != NULL; ++ap) { - if (**ap == '\0') - continue; - cat(*ap); - } - exit (cleanup(0)); - } - if (f_how) { - for (ap = pg.gl_pathv; *ap != NULL; ++ap) { - if (**ap == '\0') - continue; - how(*ap); - } - exit(cleanup(0)); - } - if (f_where) { - for (ap = pg.gl_pathv; *ap != NULL; ++ap) { - if (**ap == '\0') - continue; - (void)puts(*ap); - } - exit(cleanup(0)); - } - - /* - * 8: We display things in a single command; build a list of things - * to display. - */ - for (ap = pg.gl_pathv, len = strlen(pager) + 1; *ap != NULL; ++ap) { - if (**ap == '\0') - continue; - len += strlen(*ap) + 1; - } - if ((cmd = malloc(len)) == NULL) { - warn(NULL); - (void)cleanup(0); - exit(1); - } - p = cmd; - len = strlen(pager); - memcpy(p, pager, len); - p += len; - *p++ = ' '; - for (ap = pg.gl_pathv; *ap != NULL; ++ap) { - if (**ap == '\0') - continue; - len = strlen(*ap); - memcpy(p, *ap, len); - p += len; - *p++ = ' '; - } - *--p = '\0'; - - /* Use system(3) in case someone's pager is "pager arg1 arg2". */ - (void)system(cmd); - - exit(cleanup(0)); -} - -/* - * clearlist -- - * Remove all entries from a list, - * but leave the list header intact. - */ -static void -clearlist(TAG *t) -{ - ENTRY *e; - - while ((e = TAILQ_FIRST(&t->list)) != NULL) { - free(e->s); - TAILQ_REMOVE(&t->list, e, q); - free(e); - } -} - -/* - * parse_path -- - * Split the -M or -m argument or the MANPATH variable at colons, - * and insert the parts into the searchlist. - */ -static void -parse_path(TAG *t, const char *path) -{ - ENTRY *eplast = NULL, *ep; - char *p, *slashp, *path_copy; - - if ((path_copy = strdup(path)) == NULL) - err(1, NULL); - - while ((p = strsep(&path_copy, ":")) != NULL) { - /* Skip empty fields */ - if (*p == '\0') - continue; - - if ((ep = malloc(sizeof(ENTRY))) == NULL) - err(1, NULL); - - /* - * Bring section specific paths to the same format as - * used in the configuration file, ending in /{cat,man}N. - */ - if (section) { - slashp = p[strlen(p) - 1] == '/' ? "" : "/"; - (void)snprintf(gbuf, sizeof(gbuf), - "%s%s{cat,man}%s", p, slashp, t->s); - if ((ep->s = strdup(gbuf)) == NULL) - err(1, NULL); - } - - /* Without a section, subdirs will be appended later. */ - else - if ((ep->s = strdup(p)) == NULL) - err(1, NULL); - - /* - * Even in case of -M, inserting in front is fine: - * We have just cleared the list. - */ - if (eplast) - TAILQ_INSERT_AFTER(&t->list, eplast, ep, q); - else - TAILQ_INSERT_HEAD(&t->list, ep, q); - eplast = ep; - } - - free(path_copy); -} - -/* - * append_subdirs -- - * Iterate the searchlist and append section and machine - * subdirectories as needed. - */ -static void -append_subdirs(TAG *t, const char *machine) -{ - TAG *tsub; - ENTRY *eold, *elast, *enew, *esub; - char *slashp; - - eold = elast = TAILQ_FIRST(&t->list); - while (eold) { - - /* - * Section subdirectories *not* ending in a slash - * only get the machine suffix: They already had - * the {cat,man}N part in the configuration file - * or got it in parse_path(). - */ - if (section && eold->s[strlen(eold->s)-1] != '/') { - (void)snprintf(gbuf, sizeof(gbuf), "%s{/%s,}", - eold->s, machine); - free(eold->s); - if ((eold->s = strdup(gbuf)) == NULL) - err(1, NULL); - eold = elast = TAILQ_NEXT(eold, q); - continue; - } - - /* - * Without a section, expand each entry using the - * subdir list, then drop the original entry. - */ - esub = (tsub = getlist("_subdir")) == NULL ? - NULL : TAILQ_FIRST(&tsub->list); - while (esub) { - slashp = eold->s[strlen(eold->s)-1] == '/' ? "" : "/"; - (void)snprintf(gbuf, sizeof(gbuf), "%s%s%s{/%s,}", - eold->s, slashp, esub->s, machine); - if ((enew = malloc(sizeof(ENTRY))) == NULL || - (enew->s = strdup(gbuf)) == NULL) - err(1, NULL); - TAILQ_INSERT_AFTER(&t->list, elast, enew, q); - elast = enew; - esub = TAILQ_NEXT(esub, q); - } - elast = TAILQ_NEXT(elast, q); - TAILQ_REMOVE(&t->list, eold, q); - eold = elast; - } -} - -/* - * manual -- - * Search the manuals for the pages. - */ -static int -manual(const char *page, TAG *tag, glob_t *pg) -{ - ENTRY *ep, *e_sufp, *e_tag; - TAG *missp, *sufp; - int anyfound, cnt, found; - char *p, buf[MAXPATHLEN]; - - anyfound = 0; - buf[0] = '*'; - - /* Expand the search path. */ - if (f_all != f_where) { - e_tag = tag == NULL ? NULL : TAILQ_FIRST(&tag->list); - while (e_tag != NULL) { - if (glob(e_tag->s, GLOB_BRACE | GLOB_NOSORT, - NULL, pg)) { - /* No GLOB_NOMATCH here due to {arch,}. */ - warn("globbing directories"); - (void)cleanup(0); - exit(1); - } - for (cnt = 0; cnt < pg->gl_pathc; cnt++) { - if ((ep = malloc(sizeof(ENTRY))) == NULL || - (ep->s = strdup(pg->gl_pathv[cnt])) == - NULL) { - warn(NULL); - (void)cleanup(0); - exit(1); - } - TAILQ_INSERT_BEFORE(e_tag, ep, q); - } - ep = e_tag; - e_tag = TAILQ_NEXT(e_tag, q); - free(ep->s); - TAILQ_REMOVE(&tag->list, ep, q); - free(ep); - globfree(pg); - pg->gl_pathc = 0; - } - } - - /* For each element in the list... */ - e_tag = tag == NULL ? NULL : TAILQ_FIRST(&tag->list); - for (; e_tag != NULL; e_tag = TAILQ_NEXT(e_tag, q)) { - (void)snprintf(buf, sizeof(buf), "%s/%s.*", e_tag->s, page); - switch (glob(buf, GLOB_APPEND | GLOB_BRACE | GLOB_NOSORT, - NULL, pg)) { - case (0): - break; - case (GLOB_NOMATCH): - continue; - default: - warn("globbing files"); - (void)cleanup(0); - exit(1); - } - if (pg->gl_matchc == 0) - continue; - - /* Find out if it's really a man page. */ - for (cnt = pg->gl_pathc - pg->gl_matchc; - cnt < pg->gl_pathc; ++cnt) { - - if (!f_all || !f_where) { - check_companion(pg->gl_pathv + cnt, tag); - if (*pg->gl_pathv[cnt] == '\0') - continue; - } - - /* - * Try the _suffix key words first. - * - * XXX - * Older versions of man.conf didn't have the suffix - * key words, it was assumed that everything was a .0. - * We just test for .0 first, it's fast and probably - * going to hit. - */ - (void)snprintf(buf, sizeof(buf), "*/%s.0", page); - if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) - goto next; - - e_sufp = (sufp = getlist("_suffix")) == NULL ? - NULL : TAILQ_FIRST(&sufp->list); - for (found = 0; - e_sufp != NULL; e_sufp = TAILQ_NEXT(e_sufp, q)) { - (void)snprintf(buf, - sizeof(buf), "*/%s%s", page, e_sufp->s); - if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) { - found = 1; - break; - } - } - if (found) - goto next; - - /* Try the _build key words next. */ - e_sufp = (sufp = getlist("_build")) == NULL ? - NULL : TAILQ_FIRST(&sufp->list); - for (found = 0; - e_sufp != NULL; e_sufp = TAILQ_NEXT(e_sufp, q)) { - for (p = e_sufp->s; - *p != '\0' && !isspace(*p); ++p); - if (*p == '\0') - continue; - *p = '\0'; - (void)snprintf(buf, - sizeof(buf), "*/%s%s", page, e_sufp->s); - if (!fnmatch(buf, pg->gl_pathv[cnt], 0)) { - if (!f_where) - build_page(p + 1, - &pg->gl_pathv[cnt]); - *p = ' '; - found = 1; - break; - } - *p = ' '; - } - if (found) { -next: anyfound = 1; - if (!f_all && !f_where) { - /* Delete any other matches. */ - while (++cnt< pg->gl_pathc) - pg->gl_pathv[cnt] = ""; - break; - } - continue; - } - - /* It's not a man page, forget about it. */ - pg->gl_pathv[cnt] = ""; - } - - if (anyfound && !f_all && !f_where) - break; - } - - /* If not found, enter onto the missing list. */ - if (!anyfound) { - sigset_t osigs; - - sigprocmask(SIG_BLOCK, &blocksigs, &osigs); - - if ((missp = getlist("_missing")) == NULL) - missp = addlist("_missing"); - if ((ep = malloc(sizeof(ENTRY))) == NULL || - (ep->s = strdup(page)) == NULL) { - warn(NULL); - (void)cleanup(0); - exit(1); - } - TAILQ_INSERT_TAIL(&missp->list, ep, q); - sigprocmask(SIG_SETMASK, &osigs, NULL); - } - return (anyfound); -} - -/* - * check_companion -- - * Check for a companion [un]formatted page. - * If one is found, skip this page. - * Use the companion instead, unless it will be found anyway. - */ -static void -check_companion(char **orig, TAG *tag) { - struct stat sb_orig, sb_comp; - char *p, *pext, comp[MAXPATHLEN]; - ENTRY *entry; - size_t len; - int found; - - len = strlcpy(comp, *orig, sizeof(comp)); - /* The minus 2 avoids a buffer overrun in case of a trailing dot. */ - p = comp + len - 2; - - /* Locate the file name extension. */ - while (p > comp && *p != '.' && *p != '/') - p--; - if (*p != '.') - return; - pext = p + 1; - - /* Search for slashes. */ - for (found = 0; 1; p--) { - if (*p != '/') - continue; - - /* Did not find /{cat,man}. */ - if (p == comp) - return; - - /* Pass over one slash, the one before "page". */ - if (!found++) { - len = p - comp; - continue; - } - - /* Rewrite manN/page.N <-> catN/page.0. */ - if (!strncmp(p+1, "man", 3)) { - memcpy(++p, "cat", 3); - *pext++ = '0'; - break; - } else if (!strncmp(p+1, "cat", 3)) { - memcpy(++p, "man", 3); - p += 3; - while (*p != '/' && pext < comp + sizeof(comp) - 1) - *pext++ = *p++; - break; - - /* Accept one architecture subdir, but not more. */ - } else if (found > 2) - return; - } - *pext = '\0'; - - /* Check whether both files exist. */ - if (stat(*orig, &sb_orig) || stat(comp, &sb_comp)) - return; - - /* No action if the companion file is older. */ - if (sb_orig.st_mtim.tv_sec > sb_comp.st_mtim.tv_sec || ( - sb_orig.st_mtim.tv_sec == sb_comp.st_mtim.tv_sec && - sb_orig.st_mtim.tv_nsec > sb_comp.st_mtim.tv_nsec)) - return; - - /* Drop the companion if it is in the path, too. */ - if (f_all || f_where) - for(entry = TAILQ_FIRST(&tag->list); entry != NULL; - entry = TAILQ_NEXT(entry, q)) - if (!strncmp(entry->s, comp, len)) { - **orig = '\0'; - return; - } - - /* The companion file is newer, use it. */ - free(*orig); - if ((p = strdup(comp)) == NULL) { - warn(NULL); - (void)cleanup(0); - exit(1); - } - *orig = p; -} - -/* - * build_page -- - * Build a man page for display. - */ -static void -build_page(char *fmt, char **pathp) -{ - ENTRY *ep; - TAG *intmpp; - int fd, n; - char *p, *b; - char buf[MAXPATHLEN], cmd[MAXPATHLEN], tpath[MAXPATHLEN]; - sigset_t osigs; - - /* - * Historically man chdir'd to the root of the man tree. - * This was used in man pages that contained relative ".so" - * directives (including other man pages for command aliases etc.) - * It even went one step farther, by examining the first line - * of the man page and parsing the .so filename so it would - * make hard(?) links to the cat'ted man pages for space savings. - * (We don't do that here, but we could). - */ - - /* copy and find the end */ - for (b = buf, p = *pathp; (*b++ = *p++) != '\0';) - continue; - - /* skip the last two path components, page name and man[n] */ - for (--b, n = 2; b != buf; b--) - if (*b == '/') - if (--n == 0) { - *b = '\0'; - (void) chdir(buf); - } - - - /* Add a remove-when-done list. */ - sigprocmask(SIG_BLOCK, &blocksigs, &osigs); - if ((intmpp = getlist("_intmp")) == NULL) - intmpp = addlist("_intmp"); - sigprocmask(SIG_SETMASK, &osigs, NULL); - - /* Move to the printf(3) format string. */ - for (; *fmt && isspace(*fmt); ++fmt) - ; - - /* - * Get a temporary file and build a version of the file - * to display. Replace the old file name with the new one. - */ - (void)strlcpy(tpath, _PATH_TMPFILE, sizeof(tpath)); - if ((fd = mkstemp(tpath)) == -1) { - warn("%s", tpath); - (void)cleanup(0); - exit(1); - } - (void)snprintf(buf, sizeof(buf), "%s > %s", fmt, tpath); - (void)snprintf(cmd, sizeof(cmd), buf, *pathp); - (void)system(cmd); - (void)close(fd); - if ((*pathp = strdup(tpath)) == NULL) { - warn(NULL); - (void)cleanup(0); - exit(1); - } - - /* Link the built file into the remove-when-done list. */ - if ((ep = malloc(sizeof(ENTRY))) == NULL) { - warn(NULL); - (void)cleanup(0); - exit(1); - } - ep->s = *pathp; - - sigprocmask(SIG_BLOCK, &blocksigs, &osigs); - TAILQ_INSERT_TAIL(&intmpp->list, ep, q); - sigprocmask(SIG_SETMASK, &osigs, NULL); -} - -/* - * how -- - * display how information - */ -static void -how(char *fname) -{ - FILE *fp; - - int lcnt, print; - char *p, buf[256]; - - if (!(fp = fopen(fname, "r"))) { - warn("%s", fname); - (void)cleanup(0); - exit (1); - } -#define S1 "SYNOPSIS" -#define S2 "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS" - for (lcnt = print = 0; fgets(buf, sizeof(buf), fp);) { - if (!strncmp(buf, S1, sizeof(S1) - 1) || - !strncmp(buf, S2, sizeof(S2) - 1)) { - print = 1; - continue; - } else if (print) { - char *p = buf; - int allcaps = 0; - - while (*p) { - if (!allcaps && isalpha(*p)) - allcaps = 1; - if (isalpha(*p) && !isupper(*p)) { - allcaps = 0; - break; - } - p++; - } - if (allcaps) { - (void)fclose(fp); - return; - } - } - if (!print) - continue; - if (*buf == '\n') - ++lcnt; - else { - while (lcnt) { - --lcnt; - (void)putchar('\n'); - } - for (p = buf; isspace(*p); ++p) - ; - (void)fputs(p, stdout); - } - } - (void)fclose(fp); -} - -/* - * cat -- - * cat out the file - */ -static void -cat(char *fname) -{ - int fd, n; - char buf[2048]; - - if ((fd = open(fname, O_RDONLY, 0)) < 0) { - warn("%s", fname); - (void)cleanup(0); - exit(1); - } - while ((n = read(fd, buf, sizeof(buf))) > 0) - if (write(STDOUT_FILENO, buf, n) != n) { - warn("write"); - (void)cleanup(0); - exit (1); - } - if (n == -1) { - warn("read"); - (void)cleanup(0); - exit(1); - } - (void)close(fd); -} - -/* - * jump -- - * strip out flag argument and jump - */ -static void -jump(char **argv, char *flag, char *name) -{ - char **arg; - - argv[0] = name; - for (arg = argv + 1; *arg; ++arg) - if (!strcmp(*arg, flag)) - break; - for (; *arg; ++arg) - arg[0] = arg[1]; - execvp(name, argv); - (void)fprintf(stderr, "%s: Command not found.\n", name); - exit(1); -} - -/* - * onsig -- - * If signaled, delete the temporary files. - */ -static void -onsig(int signo) -{ - (void)cleanup(1); - - (void)signal(signo, SIG_DFL); - (void)kill(getpid(), signo); - - /* NOTREACHED */ - _exit(1); -} - -/* - * cleanup -- - * Clean up temporary files, show any error messages. - */ -static int -cleanup(int insig) -{ - TAG *intmpp, *missp; - ENTRY *ep; - int rval = 0; - - if (insig == 0) { - ep = (missp = getlist("_missing")) == NULL ? - NULL : TAILQ_FIRST(&missp->list); - if (ep != NULL) - for (; ep != NULL; ep = TAILQ_NEXT(ep, q)) { - if (section) - warnx("no entry for %s in " - "section %s of the manual.", - ep->s, section->s); - else - warnx("no entry for %s in the manual.", - ep->s); - rval = 1; - } - } - - ep = (intmpp = getlist("_intmp")) == NULL ? - NULL : TAILQ_FIRST(&intmpp->list); - for (; ep != NULL; ep = TAILQ_NEXT(ep, q)) - (void)unlink(ep->s); - return (rval); -} - -/* - * usage -- - * print usage message and die - */ -static void -usage(void) -{ - (void)fprintf(stderr, "usage: %s [-achw] [-C file] [-M path] [-m path] " - "[-S subsection] [-s section]\n\t [section] name ...\n", - __progname); - (void)fprintf(stderr, " %s -f command ...\n", __progname); - (void)fprintf(stderr, " %s -k keyword ...\n", __progname); - exit(1); -} |