/* $NetBSD: apropos.c,v 1.9 1997/10/20 02:11:32 lukem Exp $ */ /* * Copyright (c) 1987, 1993, 1994 * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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 #ifndef lint __COPYRIGHT("@(#) Copyright (c) 1987, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"); #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)apropos.c 8.8 (Berkeley) 5/4/95"; #else __RCSID("$NetBSD: apropos.c,v 1.9 1997/10/20 02:11:32 lukem Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include "config.h" #include "pathnames.h" static int *found, foundman; int main __P((int, char **)); void apropos __P((char **, char *, int)); void lowstr __P((char *, char *)); int match __P((char *, char *)); void usage __P((void)); int main(argc, argv) int argc; char *argv[]; { ENTRY *ep; TAG *tp; int ch, rv; char *conffile, **p, *p_augment, *p_path; glob_t pg; conffile = NULL; p_augment = p_path = NULL; while ((ch = getopt(argc, argv, "C:M:m:P:")) != -1) switch (ch) { case 'C': conffile = optarg; break; case 'M': case 'P': /* backward compatible */ p_path = optarg; break; case 'm': p_augment = optarg; break; case '?': default: usage(); } argv += optind; argc -= optind; if (argc < 1) usage(); if ((found = malloc((u_int)argc * sizeof(int))) == NULL) err(1, "malloc"); memset(found, 0, argc * sizeof(int)); for (p = argv; *p; ++p) /* convert to lower-case */ lowstr(*p, *p); if (p_augment) apropos(argv, p_augment, 1); if (p_path || (p_path = getenv("MANPATH"))) apropos(argv, p_path, 1); else { config(conffile); ep = (tp = getlist("_whatdb")) == NULL ? NULL : tp->list.tqh_first; for (; ep != NULL; ep = ep->q.tqe_next) { if (glob(ep->s, GLOB_BRACE | GLOB_NOSORT | GLOB_QUOTE, NULL, &pg) != 0) err(1, "glob"); for (p = pg.gl_pathv; pg.gl_pathc && *p; p++) apropos(argv, *p, 0); globfree(&pg); } } if (!foundman) errx(1, "no %s file found", _PATH_WHATIS); rv = 1; for (p = argv; *p; ++p) if (found[p - argv]) rv = 0; else (void)printf("%s: nothing appropriate\n", *p); exit(rv); } void apropos(argv, path, buildpath) char **argv, *path; int buildpath; { char *end, *name, **p; char buf[LINE_MAX + 1], wbuf[LINE_MAX + 1]; char hold[MAXPATHLEN + 1]; for (name = path; name; name = end) { /* through name list */ if ((end = strchr(name, ':'))) *end++ = '\0'; if (buildpath) { (void)sprintf(hold, "%s/%s", name, _PATH_WHATIS); name = hold; } if (!freopen(name, "r", stdin)) continue; foundman = 1; /* for each file found */ while (fgets(buf, sizeof(buf), stdin)) { if (!strchr(buf, '\n')) { warnx("%s: line too long", name); continue; } lowstr(buf, wbuf); for (p = argv; *p; ++p) if (match(wbuf, *p)) { (void)printf("%s", buf); found[p - argv] = 1; /* only print line once */ while (*++p) if (match(wbuf, *p)) found[p - argv] = 1; break; } } } } /* * match -- * match anywhere the string appears */ int match(bp, str) char *bp, *str; { int len; char test; if (!*bp) return (0); /* backward compatible: everything matches empty string */ if (!*str) return (1); for (test = *str++, len = strlen(str); *bp;) if (test == *bp++ && !strncmp(bp, str, len)) return (1); return (0); } /* * lowstr -- * convert a string to lower case */ void lowstr(from, to) char *from, *to; { char ch; while ((ch = *from++) && ch != '\n') *to++ = isupper(ch) ? tolower(ch) : ch; *to = '\0'; } /* * usage -- * print usage message and die */ void usage() { (void)fprintf(stderr, "usage: apropos [-C file] [-M path] [-m path] keyword ...\n"); exit(1); }