1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SYS_STAT_H_ 30 #error "Never include this file directly; instead, include <sys/stat.h>" 31 #endif 32 33 mode_t __umask_chk(mode_t) __INTRODUCED_IN(18); 34 35 #if defined(__BIONIC_FORTIFY) 36 #define __umask_invalid_mode_str "'umask' called with invalid mode" 37 38 #if defined(__clang__) 39 40 #if __ANDROID_API__ >= __ANDROID_API_J_MR2__ 41 /* Abuse enable_if to make this an overload of umask. */ 42 __BIONIC_FORTIFY_INLINE 43 mode_t umask(mode_t mode) 44 __overloadable 45 __enable_if(1, "") 46 __clang_error_if(mode & ~0777, __umask_invalid_mode_str) { 47 return __umask_chk(mode); 48 } 49 #endif /* __ANDROID_API__ >= __ANDROID_API_J_MR2__ */ 50 51 #else /* defined(__clang__) */ 52 __errordecl(__umask_invalid_mode, __umask_invalid_mode_str); 53 extern mode_t __umask_real(mode_t) __RENAME(umask); 54 55 #if __ANDROID_API__ >= __ANDROID_API_J_MR2__ 56 __BIONIC_FORTIFY_INLINE 57 mode_t umask(mode_t mode) { 58 if (__builtin_constant_p(mode)) { 59 if ((mode & 0777) != mode) { 60 __umask_invalid_mode(); 61 } 62 return __umask_real(mode); 63 } 64 return __umask_chk(mode); 65 } 66 #endif /* __ANDROID_API__ >= __ANDROID_API_J_MR2__ */ 67 68 #endif /* defined(__clang__) */ 69 #undef __umask_invalid_mode_str 70 71 #endif /* defined(__BIONIC_FORTIFY) */ 72
