| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1995-2016 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 | <http://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 <libioP.h> |
| 28 | #include <stdio_ext.h> |
| 29 | |
| 30 | int |
| 31 | __vdprintf_chk (int d, int flags, const char *format, va_list arg) |
| 32 | { |
| 33 | struct _IO_FILE_plus tmpfil; |
| 34 | struct _IO_wide_data wd; |
| 35 | int done; |
| 36 | |
| 37 | #ifdef _IO_MTSAFE_IO |
| 38 | tmpfil.file._lock = NULL; |
| 39 | #endif |
| 40 | _IO_no_init (&tmpfil.file, _IO_USER_LOCK, 0, &wd, &_IO_wfile_jumps); |
| 41 | _IO_JUMPS (&tmpfil) = &_IO_file_jumps; |
| 42 | _IO_file_init (&tmpfil); |
| 43 | #if !_IO_UNIFIED_JUMPTABLES |
| 44 | tmpfil.vtable = NULL; |
| 45 | #endif |
| 46 | if (_IO_file_attach (&tmpfil.file, d) == NULL) |
| 47 | { |
| 48 | _IO_un_link (&tmpfil); |
| 49 | return EOF; |
| 50 | } |
| 51 | tmpfil.file._flags |= _IO_DELETE_DONT_CLOSE; |
| 52 | |
| 53 | _IO_mask_flags (&tmpfil.file, _IO_NO_READS, |
| 54 | _IO_NO_READS+_IO_NO_WRITES+_IO_IS_APPENDING); |
| 55 | |
| 56 | /* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n |
| 57 | can only come from read-only format strings. */ |
| 58 | if (flags > 0) |
| 59 | tmpfil.file._flags2 |= _IO_FLAGS2_FORTIFY; |
| 60 | |
| 61 | done = _IO_vfprintf (&tmpfil.file, format, arg); |
| 62 | |
| 63 | _IO_FINISH (&tmpfil.file); |
| 64 | |
| 65 | return done; |
| 66 | } |
| 67 | libc_hidden_def (__vdprintf_chk) |