1 /* 2 * Copyright (c) 2022 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #include <errno.h> 30 #include <fcntl.h> 31 #include <unistd.h> 32 33 #include <darwintest.h> 34 #include <darwintest_utils.h> 35 36 T_GLOBAL_META( 37 T_META_RUN_CONCURRENTLY(true), 38 T_META_NAMESPACE("xnu.vfs"), 39 T_META_OWNER("chrisjd") 40 ); 41 42 T_DECL(read_nullbuf, "read into a NULL buffer should fail") 43 { 44 int fd; 45 ssize_t result; 46 47 fd = open("/etc/passwd", O_RDONLY); 48 T_ASSERT_NE(fd, -1, "open /etc/passwd for reading"); 49 50 result = read(fd, NULL, 8); 51 T_ASSERT_EQ(result, -1, "expected to fail"); 52 T_ASSERT_EQ(errno, EFAULT, "should have errno == EFAULT"); 53 } 54