xref: /illumos-gate/usr/src/lib/libmail/common/abspath.c (revision 71269a2275bf5a143dad6461eee2710a344e7261)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  *  NAME
34  *	abspath - expand a path relative to some `.'
35  *
36  *  SYNOPSIS
37  *	string *abspath(char *path, char *dot, string *to)
38  *
39  *  DESCRIPTION
40  *	If "path" is relative, ie: does not start with `.', the
41  *	the value of "dot" will be prepended and the result
42  *	returned in "to". Otherwise, the value of "path" is
43  *	returned in "to".
44  */
45 #include "libmail.h"
46 #include <sys/types.h>
47 
48 string *
49 abspath(char *path, char *dot, string *to)
50 {
51 	if (*path == '/') {
52 		to = s_append(to, path);
53 	} else {
54 		to = s_append(to, dot);
55 		to = s_append(to, path);
56 	}
57 	return (to);
58 }
59