| /* Tests for pread64 and pwrite64. |
| Copyright (C) 2000-2018 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/>. */ |
| |
| #define _FILE_OFFSET_BITS 64 |
| #include "tst-preadwrite-common.c" |
| |
| static int |
| do_test (void) |
| { |
| ssize_t ret; |
| |
| ret = do_test_with_offset (0); |
| if (ret == -1) |
| return 1; |
| |
| /* Create a sparse file larger than 4GB to check if offset is handled |
| correctly in p{write,read}64. */ |
| off_t base_offset = UINT32_MAX + 2048LL; |
| ret = do_test_with_offset (base_offset); |
| if (ret == -1) |
| return 1; |
| |
| struct stat st; |
| if (fstat (fd, &st) == -1) |
| { |
| printf ("error: fstat on temporary file failed: %m"); |
| return 1; |
| } |
| |
| /* The file size should >= base_offset plus bytes read. */ |
| off_t expected_value = base_offset + ret; |
| if (st.st_size < expected_value) |
| { |
| printf ("error: file size less than expected (%jd > %jd)\n", |
| (intmax_t) expected_value, (intmax_t) st.st_size); |
| return 1; |
| } |
| |
| return 0; |
| } |