glibc/string/strndup.c
Roland McGrath 6f25696828 Sat Jul 27 04:37:34 1996 Ulrich Drepper <drepper@cygnus.com>
* string/string.h (strndupa): Change to use return value of
	`memcpy' for more performance.
	* string/strndup.c: Likewise.
1996-07-27 09:36:38 +00:00

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)