| /* Common function for preadv2 and pwritev2 tests. |
| Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <limits.h> |
| #include <support/check.h> |
| |
| static void |
| do_test_with_invalid_flags (void) |
| { |
| #ifndef RWF_HIPRI |
| # define RWF_HIPRI 0 |
| #endif |
| #ifndef RWF_DSYNC |
| # define RWF_DSYNC 0 |
| #endif |
| #ifndef RWF_SYNC |
| # define RWF_SYNC 0 |
| #endif |
| #ifndef RWF_NOWAIT |
| # define RWF_NOWAIT 0 |
| #endif |
| #ifndef RWF_APPEND |
| # define RWF_APPEND 0 |
| #endif |
| #define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT \ |
| | RWF_APPEND) |
| /* Set the next bit from the mask of all supported flags. */ |
| int invalid_flag = RWF_SUPPORTED != 0 ? __builtin_clz (RWF_SUPPORTED) : 2; |
| invalid_flag = 0x1 << ((sizeof (int) * CHAR_BIT) - invalid_flag); |
| |
| char buf[32]; |
| const struct iovec vec = { .iov_base = buf, .iov_len = sizeof (buf) }; |
| if (preadv2 (temp_fd, &vec, 1, 0, invalid_flag) != -1) |
| FAIL_EXIT1 ("preadv2 did not fail with an invalid flag"); |
| if (errno != ENOTSUP) |
| FAIL_EXIT1 ("preadv2 failure did not set errno to ENOTSUP (%d)", errno); |
| |
| /* This might fail for compat syscall (32 bits running on 64 bits kernel) |
| due a kernel issue. */ |
| if (pwritev2 (temp_fd, &vec, 1, 0, invalid_flag) != -1) |
| FAIL_EXIT1 ("pwritev2 did not fail with an invalid flag"); |
| if (errno != ENOTSUP) |
| FAIL_EXIT1 ("pwritev2 failure did not set errno to ENOTSUP (%d)", errno); |
| } |