glibc/string/strcpy.c
David S. Miller 50f81fd74b Remove all traces of reg_char.
* sysdeps/generic/memcopy.h (reg_char): Delete.
	* debug/strcat_chk.c: Use char, not reg_char.
	* debug/strcpy_chk.c: Likewise.
	* debug/strncat_chk.c: Likewise.
	* debug/strncpy_chk.c: Likewise.
	* string/memchr.c: Likewise.
	* string/memrchr.c: Likewise.
	* string/rawmemchr.c: Likewise.
	* string/strcat.c: Likewise.
	* string/strchr.c: Likewise.
	* string/strchrnul.c: Likewise.
	* string/strcmp.c: Likewise.
	* string/strcpy.c: Likewise.
	* string/strncat.c: Likewise.
	* string/strncmp.c: Likewise.
	* string/strncpy.c: Likewise.
2012-04-18 16:19:10 -07:00

50 lines
1.3 KiB
C

/* Copyright (C) 1991, 1997, 2000, 2003 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stddef.h>
#include <string.h>
#include <memcopy.h>
#include <bp-checks.h>
#undef strcpy
/* Copy SRC to DEST. */
char *
strcpy (dest, src)
char *dest;
const char *src;
{
char c;
char *__unbounded s = (char *__unbounded) CHECK_BOUNDS_LOW (src);
const ptrdiff_t off = CHECK_BOUNDS_LOW (dest) - s - 1;
size_t n;
do
{
c = *s++;
s[off] = c;
}
while (c != '\0');
n = s - src;
(void) CHECK_BOUNDS_HIGH (src + n);
(void) CHECK_BOUNDS_HIGH (dest + n);
return dest;
}
libc_hidden_builtin_def (strcpy)