1/*
2 * strdup() implementation with error checking (using xmalloc).
3 *
4 * Copyright (c) 1988, 1993
5 *      The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31#include "util.h"
32
33#include "coretype.h"
34
35#if defined(LIBC_SCCS) && !defined(lint)
36static char sccsid[] = "@(#)strdup.c    8.1 (Berkeley) 6/4/93";
37#endif /* LIBC_SCCS and not lint */
38
39
40#ifdef WITH_DMALLOC
41#undef yasm__xstrdup
42#endif
43
44char *
45yasm__xstrdup(const char *str)
46{
47        size_t len;
48        char *copy;
49
50        len = strlen(str) + 1;
51        copy = yasm_xmalloc(len);
52        memcpy(copy, str, len);
53        return (copy);
54}
55
56char *
57yasm__xstrndup(const char *str, size_t max)
58{
59        size_t len = 0;
60        char *copy;
61
62        while (len < max && str[len] != '\0')
63            len++;
64        copy = yasm_xmalloc(len+1);
65        memcpy(copy, str, len);
66        copy[len] = '\0';
67        return (copy);
68}
69