diff options
Diffstat (limited to 'debug/vprintf_chk.c')
| -rw-r--r-- | debug/vprintf_chk.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/debug/vprintf_chk.c b/debug/vprintf_chk.c index b3b2c53df2..69fcb721ac 100644 --- a/debug/vprintf_chk.c +++ b/debug/vprintf_chk.c @@ -15,27 +15,17 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <stdarg.h> -#include <stdio.h> -#include "../libio/libioP.h" +#include <libio/libioP.h> /* Write formatted output to stdout from the format string FORMAT. */ int ___vprintf_chk (int flag, const char *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 = vfprintf (stdout, format, ap); - - if (flag > 0) - stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY; - _IO_release_lock (stdout); - - return done; + return __vfprintf_internal (stdout, format, ap, mode); } ldbl_strong_alias (___vprintf_chk, __vprintf_chk) |