1*aa772005SRobert Watson /*-
2*aa772005SRobert Watson * Copyright (c) 2012 The FreeBSD Foundation
3*aa772005SRobert Watson * All rights reserved.
4*aa772005SRobert Watson *
5*aa772005SRobert Watson * This software was developed by Pawel Jakub Dawidek under sponsorship from
6*aa772005SRobert Watson * the FreeBSD Foundation.
7*aa772005SRobert Watson *
8*aa772005SRobert Watson * Redistribution and use in source and binary forms, with or without
9*aa772005SRobert Watson * modification, are permitted provided that the following conditions
10*aa772005SRobert Watson * are met:
11*aa772005SRobert Watson * 1. Redistributions of source code must retain the above copyright
12*aa772005SRobert Watson * notice, this list of conditions and the following disclaimer.
13*aa772005SRobert Watson * 2. Redistributions in binary form must reproduce the above copyright
14*aa772005SRobert Watson * notice, this list of conditions and the following disclaimer in the
15*aa772005SRobert Watson * documentation and/or other materials provided with the distribution.
16*aa772005SRobert Watson *
17*aa772005SRobert Watson * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18*aa772005SRobert Watson * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19*aa772005SRobert Watson * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20*aa772005SRobert Watson * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21*aa772005SRobert Watson * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22*aa772005SRobert Watson * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23*aa772005SRobert Watson * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24*aa772005SRobert Watson * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25*aa772005SRobert Watson * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26*aa772005SRobert Watson * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27*aa772005SRobert Watson * SUCH DAMAGE.
28*aa772005SRobert Watson */
29*aa772005SRobert Watson
30*aa772005SRobert Watson #ifndef _STRNDUP_H_
31*aa772005SRobert Watson #define _STRNDUP_H_
32*aa772005SRobert Watson
33*aa772005SRobert Watson #include <stdlib.h>
34*aa772005SRobert Watson #include <string.h>
35*aa772005SRobert Watson
36*aa772005SRobert Watson static char *
strndup(const char * str,size_t len)37*aa772005SRobert Watson strndup(const char *str, size_t len)
38*aa772005SRobert Watson {
39*aa772005SRobert Watson size_t outlen;
40*aa772005SRobert Watson char *outstr;
41*aa772005SRobert Watson
42*aa772005SRobert Watson outlen = strlen(str);
43*aa772005SRobert Watson if (outlen > len)
44*aa772005SRobert Watson outlen = len;
45*aa772005SRobert Watson outstr = malloc(outlen + 1);
46*aa772005SRobert Watson if (outstr != NULL) {
47*aa772005SRobert Watson memcpy(outstr, str, outlen);
48*aa772005SRobert Watson outstr[outlen] = '\0';
49*aa772005SRobert Watson }
50*aa772005SRobert Watson return (outstr);
51*aa772005SRobert Watson }
52*aa772005SRobert Watson
53*aa772005SRobert Watson #endif /* !_STRNDUP_H_ */
54