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[] = "@(#)whereis.c 8.1 (Berkeley) 6/6/93"; 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/stat.h> 46 #include <sys/sysctl.h> 47 48 #include <err.h> 49 #include <errno.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 54 void usage __P((void)); 55 56 int 57 main(argc, argv) 58 int argc; 59 char *argv[]; 60 { 61 struct stat sb; 62 size_t len; 63 int ch, sverrno, mib[2]; 64 char *p, *t, *std, path[MAXPATHLEN]; 65 66 while ((ch = getopt(argc, argv, "")) != EOF) 67 switch (ch) { 68 case '?': 69 default: 70 usage(); 71 } 72 argc -= optind; 73 argv += optind; 74 75 /* Retrieve the standard path. */ 76 mib[0] = CTL_USER; 77 mib[1] = USER_CS_PATH; 78 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) 79 return (-1); 80 if (len == 0) 81 err(1, "user_cs_path: sysctl: zero length\n"); 82 if ((std = malloc(len)) == NULL) 83 err(1, NULL); 84 if (sysctl(mib, 2, std, &len, NULL, 0) == -1) { 85 sverrno = errno; 86 free(std); 87 errno = sverrno; 88 err(1, "sysctl: user_cs_path"); 89 } 90 91 /* For each path, for each program... */ 92 for (; *argv; ++argv) 93 for (p = std;; *p++ = ':') { 94 t = p; 95 if ((p = strchr(p, ':')) != NULL) { 96 *p = '\0'; 97 if (t == p) 98 t = "."; 99 } else 100 if (strlen(t) == 0) 101 t = "."; 102 (void)snprintf(path, sizeof(path), "%s/%s", t, *argv); 103 if (!stat(path, &sb)) 104 (void)printf("%s\n", path); 105 if (p == NULL) 106 break; 107 } 108 } 109 110 void 111 usage() 112 { 113 (void)fprintf(stderr, "whereis: program ...\n"); 114 exit (1); 115 } 116