| 1 | /* Blob write function for struct __*printf_buffer. Generic version. |
|---|---|
| 2 | Copyright (C) 2022-2024 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <printf_buffer.h> |
| 20 | |
| 21 | #include <assert.h> |
| 22 | #include <string.h> |
| 23 | |
| 24 | void |
| 25 | Xprintf_buffer_write (struct Xprintf_buffer *buf, |
| 26 | const CHAR_T *s, size_t count) |
| 27 | { |
| 28 | if (__glibc_unlikely (Xprintf_buffer_has_failed (buf))) |
| 29 | return; |
| 30 | |
| 31 | while (count > 0) |
| 32 | { |
| 33 | if (buf->write_ptr == buf->write_end && !Xprintf_buffer_flush (buf)) |
| 34 | return; |
| 35 | assert (buf->write_ptr != buf->write_end); |
| 36 | size_t to_copy = buf->write_end - buf->write_ptr; |
| 37 | if (to_copy > count) |
| 38 | to_copy = count; |
| 39 | MEMCPY (buf->write_ptr, s, to_copy); |
| 40 | buf->write_ptr += to_copy; |
| 41 | s += to_copy; |
| 42 | count -= to_copy; |
| 43 | } |
| 44 | } |
| 45 |