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 } 126