source: lib/strndup.c @ ee6e802

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivendag_formatrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since ee6e802 was ee6e802, checked in by Shane Alcock <salcock@…>, 4 years ago

Updated copyright blurb on all source files

In some cases, this meant adding copyright blurbs to files that
had never had them before.

  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 *
3 * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
4 * All rights reserved.
5 *
6 * This file is part of libtrace.
7 *
8 * This code has been developed by the University of Waikato WAND
9 * research group. For further information please see http://www.wand.net.nz/
10 *
11 * libtrace is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * libtrace is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
23 *
24 *
25 */
26#ifndef HAVE_STRNDUP
27
28#include <stdlib.h>
29#include <errno.h>
30#include <string.h>
31
32#include <libtrace_int.h>
33
34/* Some systems don't include strndup as part of their standard C library, so
35 * we need to provide our own version.
36 *
37 * Full credit to Matthew Luckie, who wrote this particular version and allowed
38 * us to borrow it.
39 */
40
41char *strndup(const char *s, size_t size)
42{
43  char   *str;
44  size_t  len;
45
46  if(size == 0 || s == NULL)
47    {
48      errno = EINVAL;
49      return NULL;
50    }
51
52  if(size > (len = strlen(s)))
53    {
54      size = len+1;
55    }
56
57  if((str = malloc(size)) == NULL)
58    {
59      errno = ENOMEM;
60      return NULL;
61    }
62
63  memcpy(str, s, size);
64  str[size-1] = '\0';
65
66  return str;
67}
68
69#endif
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