1 /*- 2 * Copyright (c) 1991, 1993, 1994 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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 35 #include <err.h> 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <unistd.h> 39 40 static void usage(void) __dead2; 41 42 int 43 main(int argc, char *argv[]) 44 { 45 char buf[PATH_MAX]; 46 char *p; 47 int ch, i, qflag, rval; 48 49 qflag = 0; 50 while ((ch = getopt(argc, argv, "q")) != -1) { 51 switch (ch) { 52 case 'q': 53 qflag = 1; 54 break; 55 case '?': 56 default: 57 usage(); 58 } 59 } 60 argc -= optind; 61 argv += optind; 62 if (argc < 1) 63 usage(); 64 rval = 0; 65 for (i = 0; i < argc; i++) { 66 if ((p = realpath(argv[i], buf)) == NULL) { 67 if (!qflag) 68 warn("%s", argv[i]); 69 rval = 1; 70 } else 71 (void)printf("%s\n", p); 72 } 73 exit(rval); 74 } 75 76 static void 77 usage(void) 78 { 79 80 (void)fprintf(stderr, "usage: realpath [-q] path [...]\n"); 81 exit(1); 82 } 83