| George Burgess IV | b97049c | 2017-07-24 15:05:05 -0700 | [diff] [blame] | 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) |
| George Burgess IV | 52dde5f | 2017-07-31 21:16:05 -0700 | [diff] [blame] | 36 | #define __umask_invalid_mode_str "'umask' called with invalid mode" |
| George Burgess IV | b97049c | 2017-07-24 15:05:05 -0700 | [diff] [blame] | 37 | |
| 38 | #if defined(__clang__) |
| 39 | |
| 40 | #if __ANDROID_API__ >= __ANDROID_API_J_MR2__ |
| George Burgess IV | 52dde5f | 2017-07-31 21:16:05 -0700 | [diff] [blame] | 41 | /* Abuse enable_if to make this an overload of umask. */ |
| George Burgess IV | b97049c | 2017-07-24 15:05:05 -0700 | [diff] [blame] | 42 | __BIONIC_FORTIFY_INLINE |
| George Burgess IV | 52dde5f | 2017-07-31 21:16:05 -0700 | [diff] [blame] | 43 | mode_t umask(mode_t mode) |
| 44 | __overloadable |
| 45 | __enable_if(1, "") |
| 46 | __clang_error_if(mode & ~0777, __umask_invalid_mode_str) { |
| George Burgess IV | b97049c | 2017-07-24 15:05:05 -0700 | [diff] [blame] | 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) */ |