mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 10:22:41 +08:00
6f25696828
* string/string.h (strndupa): Change to use return value of `memcpy' for more performance. * string/strndup.c: Likewise.
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/* Copyright (C) 1996 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., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
|
|
char *
|
|
__strndup (const char *s, size_t n)
|
|
{
|
|
size_t len = strnlen (s, n);
|
|
char *new = malloc (len + 1);
|
|
|
|
if (new == NULL)
|
|
return NULL;
|
|
|
|
new[len] = '\0';
|
|
return memcpy (new, s, len);
|
|
}
|
|
weak_alias (__strndup, strndup)
|