Annotation of src/usr.bin/apropos/apropos.c, Revision 1.1
1.1 ! deraadt 1: /* $NetBSD: apropos.c,v 1.5 1995/09/04 20:46:20 tls Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1987, 1993, 1994
! 5: * The Regents of the University of California. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: */
! 35:
! 36: #ifndef lint
! 37: static char copyright[] =
! 38: "@(#) Copyright (c) 1987, 1993, 1994\n\
! 39: The Regents of the University of California. All rights reserved.\n";
! 40: #endif /* not lint */
! 41:
! 42: #ifndef lint
! 43: #if 0
! 44: static char sccsid[] = "@(#)apropos.c 8.8 (Berkeley) 5/4/95";
! 45: #else
! 46: static char rcsid[] = "$NetBSD: apropos.c,v 1.5 1995/09/04 20:46:20 tls Exp $";
! 47: #endif
! 48: #endif /* not lint */
! 49:
! 50: #include <sys/param.h>
! 51: #include <sys/queue.h>
! 52:
! 53: #include <ctype.h>
! 54: #include <err.h>
! 55: #include <limits.h>
! 56: #include <stdio.h>
! 57: #include <stdlib.h>
! 58: #include <string.h>
! 59: #include <unistd.h>
! 60:
! 61: #include "../man/config.h"
! 62: #include "../man/pathnames.h"
! 63:
! 64: static int *found, foundman;
! 65:
! 66: void apropos __P((char **, char *, int));
! 67: void lowstr __P((char *, char *));
! 68: int match __P((char *, char *));
! 69: void usage __P((void));
! 70:
! 71: int
! 72: main(argc, argv)
! 73: int argc;
! 74: char *argv[];
! 75: {
! 76: ENTRY *ep;
! 77: TAG *tp;
! 78: int ch, rv;
! 79: char *conffile, **p, *p_augment, *p_path;
! 80:
! 81: conffile = NULL;
! 82: p_augment = p_path = NULL;
! 83: while ((ch = getopt(argc, argv, "C:M:m:P:")) != EOF)
! 84: switch (ch) {
! 85: case 'C':
! 86: conffile = optarg;
! 87: break;
! 88: case 'M':
! 89: case 'P': /* backward compatible */
! 90: p_path = optarg;
! 91: break;
! 92: case 'm':
! 93: p_augment = optarg;
! 94: break;
! 95: case '?':
! 96: default:
! 97: usage();
! 98: }
! 99: argv += optind;
! 100: argc -= optind;
! 101:
! 102: if (argc < 1)
! 103: usage();
! 104:
! 105: if ((found = malloc((u_int)argc * sizeof(int))) == NULL)
! 106: err(1, NULL);
! 107: memset(found, 0, argc * sizeof(int));
! 108:
! 109: for (p = argv; *p; ++p) /* convert to lower-case */
! 110: lowstr(*p, *p);
! 111:
! 112: if (p_augment)
! 113: apropos(argv, p_augment, 1);
! 114: if (p_path || (p_path = getenv("MANPATH")))
! 115: apropos(argv, p_path, 1);
! 116: else {
! 117: config(conffile);
! 118: ep = (tp = getlist("_whatdb")) == NULL ?
! 119: NULL : tp->list.tqh_first;
! 120: for (; ep != NULL; ep = ep->q.tqe_next)
! 121: apropos(argv, ep->s, 0);
! 122: }
! 123:
! 124: if (!foundman)
! 125: errx(1, "no %s file found", _PATH_WHATIS);
! 126:
! 127: rv = 1;
! 128: for (p = argv; *p; ++p)
! 129: if (found[p - argv])
! 130: rv = 0;
! 131: else
! 132: (void)printf("%s: nothing appropriate\n", *p);
! 133: exit(rv);
! 134: }
! 135:
! 136: void
! 137: apropos(argv, path, buildpath)
! 138: char **argv, *path;
! 139: int buildpath;
! 140: {
! 141: char *end, *name, **p;
! 142: char buf[LINE_MAX + 1], wbuf[LINE_MAX + 1];
! 143:
! 144: for (name = path; name; name = end) { /* through name list */
! 145: if (end = strchr(name, ':'))
! 146: *end++ = '\0';
! 147:
! 148: if (buildpath) {
! 149: char hold[MAXPATHLEN + 1];
! 150:
! 151: (void)sprintf(hold, "%s/%s", name, _PATH_WHATIS);
! 152: name = hold;
! 153: }
! 154:
! 155: if (!freopen(name, "r", stdin))
! 156: continue;
! 157:
! 158: foundman = 1;
! 159:
! 160: /* for each file found */
! 161: while (fgets(buf, sizeof(buf), stdin)) {
! 162: if (!strchr(buf, '\n')) {
! 163: warnx("%s: line too long", name);
! 164: continue;
! 165: }
! 166: lowstr(buf, wbuf);
! 167: for (p = argv; *p; ++p)
! 168: if (match(wbuf, *p)) {
! 169: (void)printf("%s", buf);
! 170: found[p - argv] = 1;
! 171:
! 172: /* only print line once */
! 173: while (*++p)
! 174: if (match(wbuf, *p))
! 175: found[p - argv] = 1;
! 176: break;
! 177: }
! 178: }
! 179: }
! 180: }
! 181:
! 182: /*
! 183: * match --
! 184: * match anywhere the string appears
! 185: */
! 186: int
! 187: match(bp, str)
! 188: char *bp, *str;
! 189: {
! 190: int len;
! 191: char test;
! 192:
! 193: if (!*bp)
! 194: return (0);
! 195: /* backward compatible: everything matches empty string */
! 196: if (!*str)
! 197: return (1);
! 198: for (test = *str++, len = strlen(str); *bp;)
! 199: if (test == *bp++ && !strncmp(bp, str, len))
! 200: return (1);
! 201: return (0);
! 202: }
! 203:
! 204: /*
! 205: * lowstr --
! 206: * convert a string to lower case
! 207: */
! 208: void
! 209: lowstr(from, to)
! 210: char *from, *to;
! 211: {
! 212: char ch;
! 213:
! 214: while ((ch = *from++) && ch != '\n')
! 215: *to++ = isupper(ch) ? tolower(ch) : ch;
! 216: *to = '\0';
! 217: }
! 218:
! 219: /*
! 220: * usage --
! 221: * print usage message and die
! 222: */
! 223: void
! 224: usage()
! 225: {
! 226:
! 227: (void)fprintf(stderr,
! 228: "usage: apropos [-C file] [-M path] [-m path] keyword ...\n");
! 229: exit(1);
! 230: }
![[BACK]](/icons/back.gif){kind=icon}
Return to apropos.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / apropos