| 1 | /* Copyright (C) 1991-2022 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 | #include <stdarg.h> |
|---|
| 19 | #include <libio/libioP.h> |
|---|
| 20 | |
|---|
| 21 | |
|---|
| 22 | /* Write formatted output from FORMAT to a string which is |
|---|
| 23 | allocated with malloc and stored in *STRING_PTR. */ |
|---|
| 24 | int |
|---|
| 25 | __asprintf_chk (char **result_ptr, int flag, const char *format, ...) |
|---|
| 26 | { |
|---|
| 27 | /* For flag > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n |
|---|
| 28 | can only come from read-only format strings. */ |
|---|
| 29 | unsigned int mode = (flag > 0) ? PRINTF_FORTIFY : 0; |
|---|
| 30 | va_list ap; |
|---|
| 31 | int ret; |
|---|
| 32 | |
|---|
| 33 | va_start (ap, format); |
|---|
| 34 | ret = __vasprintf_internal (result_ptr, format, ap, mode_flags: mode); |
|---|
| 35 | va_end (ap); |
|---|
| 36 | |
|---|
| 37 | return ret; |
|---|
| 38 | } |
|---|
| 39 | |
|---|
