1 /* Basic fallocate64 test (no specific flags is checked). 2 Copyright (C) 2016-2021 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 #define _FILE_OFFSET_BITS 64 20 #include "tst-fallocate-common.c" 21 22 static int do_test(void)23do_test (void) 24 { 25 ssize_t ret; 26 27 ret = do_test_with_offset (0); 28 if (ret == 1) 29 return 1; 30 31 off_t base_offset = UINT32_MAX + 2048LL; 32 ret = do_test_with_offset (base_offset); 33 if (ret == 1) 34 return 1; 35 36 struct stat st; 37 if (fstat (temp_fd, &st) == -1) 38 FAIL_EXIT1 ("fstat on temporary file failed: %m"); 39 40 /* The file size should >= base_offset plus bytes written. */ 41 off_t expected_value = base_offset + ret; 42 if (st.st_size < expected_value) 43 FAIL_EXIT1 ("file size less than expected (%jd > %jd)", 44 (intmax_t) expected_value, (intmax_t) st.st_size); 45 46 return 0; 47 } 48