1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 /*static char sccsid[] = "from: @(#)whereis.c 8.1 (Berkeley) 6/6/93";*/ 42 static char *rcsid = "$Id: whereis.c,v 1.5 1994/09/18 02:14:34 mycroft Exp $"; 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 #include <sys/sysctl.h> 48 49 #include <err.h> 50 #include <errno.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 55 void usage __P((void)); 56 57 int 58 main(argc, argv) 59 int argc; 60 char *argv[]; 61 { 62 struct stat sb; 63 size_t len; 64 int ch, sverrno, mib[2]; 65 char *p, *t, *std, path[MAXPATHLEN]; 66 67 while ((ch = getopt(argc, argv, "")) != EOF) 68 switch (ch) { 69 case '?': 70 default: 71 usage(); 72 } 73 argc -= optind; 74 argv += optind; 75 76 if (argc == 0) 77 usage(); 78 79 /* Retrieve the standard path. */ 80 mib[0] = CTL_USER; 81 mib[1] = USER_CS_PATH; 82 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) 83 return (-1); 84 if (len == 0) 85 err(1, "user_cs_path: sysctl: zero length\n"); 86 if ((std = malloc(len)) == NULL) 87 err(1, NULL); 88 if (sysctl(mib, 2, std, &len, NULL, 0) == -1) { 89 sverrno = errno; 90 free(std); 91 errno = sverrno; 92 err(1, "sysctl: user_cs_path"); 93 } 94 95 /* For each path, for each program... */ 96 for (; *argv; ++argv) 97 for (p = std;; *p++ = ':') { 98 t = p; 99 if ((p = strchr(p, ':')) != NULL) { 100 *p = '\0'; 101 if (t == p) 102 t = "."; 103 } else 104 if (strlen(t) == 0) 105 t = "."; 106 (void)snprintf(path, sizeof(path), "%s/%s", t, *argv); 107 if (!stat(path, &sb)) 108 (void)printf("%s\n", path); 109 if (p == NULL) 110 break; 111 } 112 } 113 114 void 115 usage() 116 { 117 118 (void)fprintf(stderr, "usage: whereis program [...]\n"); 119 exit (1); 120 } 121