xref: /illumos-gate/usr/src/lib/libmail/common/abspath.c (revision 118b2dbf1f4a745a7e35a5054a777c09bd90fff7)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 /*
31  *  NAME
32  *	abspath - expand a path relative to some `.'
33  *
34  *  SYNOPSIS
35  *	string *abspath(char *path, char *dot, string *to)
36  *
37  *  DESCRIPTION
38  *	If "path" is relative, ie: does not start with `.', the
39  *	the value of "dot" will be prepended and the result
40  *	returned in "to". Otherwise, the value of "path" is
41  *	returned in "to".
42  */
43 #include "libmail.h"
44 #include <sys/types.h>
45 
46 string *
47 abspath(char *path, char *dot, string *to)
48 {
49 	if (*path == '/') {
50 		to = s_append(to, path);
51 	} else {
52 		to = s_append(to, dot);
53 		to = s_append(to, path);
54 	}
55 	return (to);
56 }
57