| 1 | /* Copyright (C) 1995-2021 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <https://www.gnu.org/licenses/>. |
| 17 | |
| 18 | As a special exception, if you link the code in this file with |
| 19 | files compiled with a GNU compiler to produce an executable, |
| 20 | that does not cause the resulting executable to be covered by |
| 21 | the GNU Lesser General Public License. This exception does not |
| 22 | however invalidate any other reasons why the executable file |
| 23 | might be covered by the GNU Lesser General Public License. |
| 24 | This exception applies to code released by its copyright holders |
| 25 | in files containing the exception. */ |
| 26 | |
| 27 | #include <libio/libioP.h> |
| 28 | |
| 29 | int |
| 30 | __vdprintf_chk (int d, int flag, const char *format, va_list ap) |
| 31 | { |
| 32 | /* For flag > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n |
| 33 | can only come from read-only format strings. */ |
| 34 | unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0; |
| 35 | |
| 36 | return __vdprintf_internal (d, format, ap, mode); |
| 37 | } |
| 38 | |