xref: /freebsd/lib/libpathconv/tests/abs2rel.c (revision e8d8bef961a50d4dc22501cde4fb9fb0be1b2532)
1 /*
2  * Copyright (c) 1997 Shigio Yamaguchi. All rights reserved.
3  * Copyright (c) 1999 Tama Communications Corporation. 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  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <unistd.h>
32 #include <string.h>
33 #include <sys/param.h>
34 #include <errno.h>
35 #include "../pathconv.h"
36 
37 int
38 main(int argc, char *argv[])
39 {
40 	char result[MAXPATHLEN];
41 	char cwd[MAXPATHLEN];
42 
43 	if (argc < 2) {
44 		fprintf(stderr, "usage: abs2rel path [base]\n");
45 		exit(1);
46 	}
47 	if (argc == 2) {
48 		if (!getcwd(cwd, MAXPATHLEN)) {
49 			fprintf(stderr, "cannot get current directory.\n");
50 			exit(1);
51 		}
52 	} else
53 		strcpy(cwd, argv[2]);
54 
55 	if (abs2rel(argv[1], cwd, result, MAXPATHLEN)) {
56 		printf("%s\n", result);
57 	} else
58 		printf("ERROR\n");
59 	exit(0);
60 }
61