File: strndup.c

package info (click to toggle)
hotway 1%3A0.8.4-2.1
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 1,072 kB
  • ctags: 772
  • sloc: ansic: 6,773; sh: 3,543; makefile: 118
file content (59 lines) | stat: -rwxr-xr-x 1,567 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <stdio.h>
#include <sys/types.h>

#if defined _LIBC || defined STDC_HEADERS
# include <stdlib.h>
# include <string.h>
#else
extern void *malloc ();
extern void *memcpy();
#endif

#undef __strndup
#undef strndup

extern size_t strnlen (const char *string, size_t maxlen);

#ifndef weak_alias
# define __strndup strndup
#endif

char *
__strndup (s, n)
     const char *s;
     size_t n;
{
  size_t len = strnlen (s, n);
  char *new = (char *) malloc (len + 1);

  if (new == NULL)
    return NULL;

  new[len] = '\0';
  return (char *) memcpy (new, s, len);
}
#ifdef weak_alias
weak_alias (__strndup, strndup)
#endif