mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
fa3eb7d5e7
Otherwise on at least x86_64 and s390x there is an unwanted PLT entry in libc.so when configured with --enable-fortify-source=3 and build with -Os. This is observed in elf/check-localplt Extra PLT reference: libc.so: __strcpy_chk The call to PLT entry is in inet/ruserpass.c. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/* Copyright (C) 1991-2024 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <memcopy.h>
|
|
|
|
#undef strcpy
|
|
|
|
/* Copy SRC to DEST with checking of destination buffer overflow. */
|
|
char *
|
|
__strcpy_chk (char *dest, const char *src, size_t destlen)
|
|
{
|
|
size_t len = strlen (src);
|
|
if (len >= destlen)
|
|
__chk_fail ();
|
|
|
|
return memcpy (dest, src, len + 1);
|
|
}
|
|
libc_hidden_builtin_def (__strcpy_chk)
|