1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef _LIBCPP___FILESYSTEM_PERMS_H 11 #define _LIBCPP___FILESYSTEM_PERMS_H 12 13 #include <__config> 14 15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 16 # pragma GCC system_header 17 #endif 18 19 #if _LIBCPP_STD_VER >= 17 20 21 _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM 22 23 // On Windows, these permission bits map to one single readonly flag per 24 // file, and the executable bit is always returned as set. When setting 25 // permissions, as long as the write bit is set for either owner, group or 26 // others, the readonly flag is cleared. 27 enum class perms : unsigned { 28 none = 0, 29 30 owner_read = 0400, 31 owner_write = 0200, 32 owner_exec = 0100, 33 owner_all = 0700, 34 35 group_read = 040, 36 group_write = 020, 37 group_exec = 010, 38 group_all = 070, 39 40 others_read = 04, 41 others_write = 02, 42 others_exec = 01, 43 others_all = 07, 44 45 all = 0777, 46 47 set_uid = 04000, 48 set_gid = 02000, 49 sticky_bit = 01000, 50 mask = 07777, 51 unknown = 0xFFFF, 52 }; 53 54 _LIBCPP_HIDE_FROM_ABI inline constexpr perms operator&(perms __lhs, perms __rhs) { 55 return static_cast<perms>(static_cast<unsigned>(__lhs) & static_cast<unsigned>(__rhs)); 56 } 57 58 _LIBCPP_HIDE_FROM_ABI inline constexpr perms operator|(perms __lhs, perms __rhs) { 59 return static_cast<perms>(static_cast<unsigned>(__lhs) | static_cast<unsigned>(__rhs)); 60 } 61 62 _LIBCPP_HIDE_FROM_ABI inline constexpr perms operator^(perms __lhs, perms __rhs) { 63 return static_cast<perms>(static_cast<unsigned>(__lhs) ^ static_cast<unsigned>(__rhs)); 64 } 65 66 _LIBCPP_HIDE_FROM_ABI inline constexpr perms operator~(perms __lhs) { 67 return static_cast<perms>(~static_cast<unsigned>(__lhs)); 68 } 69 70 _LIBCPP_HIDE_FROM_ABI inline perms& operator&=(perms& __lhs, perms __rhs) { return __lhs = __lhs & __rhs; } 71 72 _LIBCPP_HIDE_FROM_ABI inline perms& operator|=(perms& __lhs, perms __rhs) { return __lhs = __lhs | __rhs; } 73 74 _LIBCPP_HIDE_FROM_ABI inline perms& operator^=(perms& __lhs, perms __rhs) { return __lhs = __lhs ^ __rhs; } 75 76 _LIBCPP_END_NAMESPACE_FILESYSTEM 77 78 #endif // _LIBCPP_STD_VER >= 17 79 80 #endif // _LIBCPP___FILESYSTEM_PERMS_H 81