1 /* $NetBSD: realpath.c,v 1.1 2020/02/02 21:49:44 kamil Exp $ */ 2 /*- 3 * SPDX-License-Identifier: BSD-3-Clause 4 * 5 * Copyright (c) 1991, 1993, 1994 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 #if !defined(lint) 35 #if 0 36 __FBSDID("$FreeBSD: head/bin/realpath/realpath.c 326025 2017-11-20 19:49:47Z pfg $"); 37 #else 38 __RCSID("$NetBSD: realpath.c,v 1.1 2020/02/02 21:49:44 kamil Exp $"); 39 #endif 40 #endif /* not lint */ 41 42 #include <sys/param.h> 43 44 #include <err.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <unistd.h> 48 49 static void usage(void) __dead; 50 51 int 52 main(int argc, char *argv[]) 53 { 54 char buf[PATH_MAX]; 55 char *p; 56 const char *path; 57 int ch, qflag, rval; 58 59 setprogname(argv[0]); 60 61 qflag = 0; 62 while ((ch = getopt(argc, argv, "q")) != -1) { 63 switch (ch) { 64 case 'q': 65 qflag = 1; 66 break; 67 case '?': 68 default: 69 usage(); 70 } 71 } 72 argc -= optind; 73 argv += optind; 74 path = *argv != NULL ? *argv++ : "."; 75 rval = 0; 76 do { 77 if ((p = realpath(path, buf)) == NULL) { 78 if (!qflag) 79 warn("%s", path); 80 rval = 1; 81 } else 82 (void)printf("%s\n", p); 83 } while ((path = *argv++) != NULL); 84 exit(rval); 85 } 86 87 static void 88 usage(void) 89 { 90 91 (void)fprintf(stderr, "usage: %s [-q] [path ...]\n", getprogname()); 92 exit(1); 93 } 94