diff options
Diffstat (limited to 'REORG.TODO/debug/memmove_chk.c')
-rw-r--r-- | REORG.TODO/debug/memmove_chk.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/REORG.TODO/debug/memmove_chk.c b/REORG.TODO/debug/memmove_chk.c new file mode 100644 index 0000000000..abd21306e2 --- /dev/null +++ b/REORG.TODO/debug/memmove_chk.c @@ -0,0 +1,35 @@ +/* Copy memory to memory until the specified number of bytes + has been copied with error checking. Overlap is handled correctly. + Copyright (C) 1991-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Torbjorn Granlund (tege@sics.se). + + 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 <string.h> +#include <memcopy.h> + +#ifndef MEMMOVE_CHK +# define MEMMOVE_CHK __memmove_chk +#endif + +void * +MEMMOVE_CHK (void *dest, const void *src, size_t len, size_t destlen) +{ + if (__glibc_unlikely (destlen < len)) + __chk_fail (); + + return memmove (dest, src, len); +} |