xref: /freebsd/lib/libpathconv/tests/abs2rel.c (revision 59c8e88e72633afbc47a4ace0d2170d00d51f7dc)
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 
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <unistd.h>
30 #include <string.h>
31 #include <sys/param.h>
32 #include <errno.h>
33 #include "../pathconv.h"
34 
35 int
36 main(int argc, char *argv[])
37 {
38 	char result[MAXPATHLEN];
39 	char cwd[MAXPATHLEN];
40 
41 	if (argc < 2) {
42 		fprintf(stderr, "usage: abs2rel path [base]\n");
43 		exit(1);
44 	}
45 	if (argc == 2) {
46 		if (!getcwd(cwd, MAXPATHLEN)) {
47 			fprintf(stderr, "cannot get current directory.\n");
48 			exit(1);
49 		}
50 	} else
51 		strcpy(cwd, argv[2]);
52 
53 	if (abs2rel(argv[1], cwd, result, MAXPATHLEN)) {
54 		printf("%s\n", result);
55 	} else
56 		printf("ERROR\n");
57 	exit(0);
58 }
59