1/* $NetBSD: whereis.c,v 1.8 1997/10/20 02:22:55 mrg 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#include <sys/cdefs.h> 37#ifndef lint 38__COPYRIGHT("@(#) 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 44static char sccsid[] = "@(#)whereis.c 8.3 (Berkeley) 5/4/95"; 45#endif 46__RCSID("$NetBSD: whereis.c,v 1.8 1997/10/20 02:22:55 mrg 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 60void usage __P((void)); 61int main __P((int, char *[])); 62 63int 64main(argc, argv) 65 int argc; 66 char *argv[]; 67{ 68 struct stat sb; 69 size_t len; 70 int ch, sverrno, mib[2]; 71 char *p, *t, *std, path[MAXPATHLEN]; 72 73 while ((ch = getopt(argc, argv, "")) != -1) 74 switch (ch) { 75 case '?': 76 default: 77 usage(); 78 } 79 argc -= optind; 80 argv += optind; 81 82 if (argc == 0) 83 usage(); 84 85 /* Retrieve the standard path. */ 86 mib[0] = CTL_USER; 87 mib[1] = USER_CS_PATH; 88 if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) 89 return (-1); 90 if (len == 0) 91 err(1, "user_cs_path: sysctl: zero length\n"); 92 if ((std = malloc(len)) == NULL) 93 err(1, "%s", ""); 94 if (sysctl(mib, 2, std, &len, NULL, 0) == -1) { 95 sverrno = errno; 96 free(std); 97 errno = sverrno; 98 err(1, "sysctl: user_cs_path"); 99 } 100 101 /* For each path, for each program... */ 102 for (; *argv; ++argv) 103 for (p = std;; *p++ = ':') { 104 t = p; 105 if ((p = strchr(p, ':')) != NULL) { 106 *p = '\0'; 107 if (t == p) 108 t = "."; 109 } else 110 if (strlen(t) == 0) 111 t = "."; 112 (void)snprintf(path, sizeof(path), "%s/%s", t, *argv); 113 if (!stat(path, &sb)) 114 (void)printf("%s\n", path); 115 if (p == NULL) 116 break; 117 } 118 119 return (0); 120} 121 122void 123usage() 124{ 125 126 (void)fprintf(stderr, "usage: whereis program [...]\n"); 127 exit (1); 128} 129