Annotation of src/usr.bin/whereis/whereis.c, Revision 1.1.1.1
1.1 deraadt 1: /* $NetBSD: whereis.c,v 1.6 1995/08/31 21:54:52 jtc Exp $ */
2:
3: /*-
4: * Copyright (c) 1993
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) 1993\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[] = "@(#)whereis.c 8.3 (Berkeley) 5/4/95";
45: #endif
46: static char *rcsid = "$NetBSD: whereis.c,v 1.6 1995/08/31 21:54:52 jtc Exp $";
47: #endif /* not lint */
48:
49: #include <sys/param.h>
50: #include <sys/stat.h>
51: #include <sys/sysctl.h>
52:
53: #include <err.h>
54: #include <errno.h>
55: #include <stdio.h>
56: #include <stdlib.h>
57: #include <string.h>
58: #include <unistd.h>
59:
60: void usage __P((void));
61:
62: int
63: main(argc, argv)
64: int argc;
65: char *argv[];
66: {
67: struct stat sb;
68: size_t len;
69: int ch, sverrno, mib[2];
70: char *p, *t, *std, path[MAXPATHLEN];
71:
72: while ((ch = getopt(argc, argv, "")) != EOF)
73: switch (ch) {
74: case '?':
75: default:
76: usage();
77: }
78: argc -= optind;
79: argv += optind;
80:
81: if (argc == 0)
82: usage();
83:
84: /* Retrieve the standard path. */
85: mib[0] = CTL_USER;
86: mib[1] = USER_CS_PATH;
87: if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1)
88: return (-1);
89: if (len == 0)
90: err(1, "user_cs_path: sysctl: zero length\n");
91: if ((std = malloc(len)) == NULL)
92: err(1, NULL);
93: if (sysctl(mib, 2, std, &len, NULL, 0) == -1) {
94: sverrno = errno;
95: free(std);
96: errno = sverrno;
97: err(1, "sysctl: user_cs_path");
98: }
99:
100: /* For each path, for each program... */
101: for (; *argv; ++argv)
102: for (p = std;; *p++ = ':') {
103: t = p;
104: if ((p = strchr(p, ':')) != NULL) {
105: *p = '\0';
106: if (t == p)
107: t = ".";
108: } else
109: if (strlen(t) == 0)
110: t = ".";
111: (void)snprintf(path, sizeof(path), "%s/%s", t, *argv);
112: if (!stat(path, &sb))
113: (void)printf("%s\n", path);
114: if (p == NULL)
115: break;
116: }
117: }
118:
119: void
120: usage()
121: {
122:
123: (void)fprintf(stderr, "usage: whereis program [...]\n");
124: exit (1);
125: }