/* Basic fallocate64 test (no specific flags is checked). Copyright (C) 2016-2018 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-fallocate-common.c" static int do_test (void) { ssize_t ret; ret = do_test_with_offset (0); if (ret == 1) return 1; off_t base_offset = UINT32_MAX + 2048LL; ret = do_test_with_offset (base_offset); if (ret == 1) return 1; struct stat st; if (fstat (temp_fd, &st) == -1) FAIL_EXIT1 ("fstat on temporary file failed: %m"); /* The file size should >= base_offset plus bytes written. */ off_t expected_value = base_offset + ret; if (st.st_size < expected_value) FAIL_EXIT1 ("file size less than expected (%jd > %jd)", (intmax_t) expected_value, (intmax_t) st.st_size); return 0; }