diff options
Diffstat (limited to 'debug/vwprintf_chk.c')
| -rw-r--r-- | debug/vwprintf_chk.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/debug/vwprintf_chk.c b/debug/vwprintf_chk.c index 51b67c159d..c95bf13e6c 100644 --- a/debug/vwprintf_chk.c +++ b/debug/vwprintf_chk.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991-2018 Free Software Foundation, Inc. +/* Copyright (C) 1991-2019 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 @@ -13,29 +13,18 @@ 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/>. */ + <https://www.gnu.org/licenses/>. */ -#include <stdarg.h> -#include <stdio.h> -#include <wchar.h> -#include "../libio/libioP.h" +#include <libio/libioP.h> /* Write formatted output to stdout from the format string FORMAT. */ int __vwprintf_chk (int flag, const wchar_t *format, va_list ap) { - int done; + /* For flag > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n + can only come from read-only format strings. */ + unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0; - _IO_acquire_lock_clear_flags2 (stdout); - if (flag > 0) - stdout->_flags2 |= _IO_FLAGS2_FORTIFY; - - done = _IO_vfwprintf (stdout, format, ap); - - if (flag > 0) - stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY; - _IO_release_lock (stdout); - - return done; + return __vfwprintf_internal (stdout, format, ap, mode); } |