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) 1988 AT&T */
28 /* All Rights Reserved */
29
30 #pragma ident "%Z%%M% %I% %E% SMI"
31
32 #pragma weak _strdup = strdup
33
34 #include "lint.h"
35 #include <string.h>
36 #include <stdlib.h>
37 #include <sys/types.h>
38
39 /*
40 * string duplication
41 * returns pointer to a new string which is the duplicate of string
42 * pointed to by s1
43 * NULL is returned if new string can't be created
44 */
45 char *
strdup(const char * s1)46 strdup(const char *s1)
47 {
48 char *s2 = malloc(strlen(s1) + 1);
49
50 if (s2)
51 (void) strcpy(s2, s1);
52 return (s2);
53 }
54