grub/grub-core/gnulib/strndup.c

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/* A replacement function, for systems that lack strndup.
Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2005, 2006, 2007, 2009,
2010 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#include <config.h>
#include <string.h>
#include <stdlib.h>
char *
strndup (char const *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);
}