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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #pragma once
     18 
     19 #include <sys/stat.h>
     20 #include <sys/types.h>
     21 #include <unistd.h>
     22 
     23 #if defined(_WIN32)
     24 // stat is broken on Win32: stat on a path with a trailing slash or backslash will always fail with
     25 // ENOENT.
     26 int adb_stat(const char* path, struct adb_stat* buf);
     27 
     28 // We later define a macro mapping 'stat' to 'adb_stat'. This causes:
     29 //   struct stat s;
     30 //   stat(filename, &s);
     31 // To turn into the following:
     32 //   struct adb_stat s;
     33 //   adb_stat(filename, &s);
     34 // To get this to work, we need to make 'struct adb_stat' the same as
     35 // 'struct stat'. Note that this definition of 'struct adb_stat' uses the
     36 // *current* macro definition of stat, so it may actually be inheriting from
     37 // struct _stat32i64 (or some other remapping).
     38 struct adb_stat : public stat {};
     39 
     40 #undef stat
     41 #define stat adb_stat
     42 
     43 // Windows doesn't have lstat.
     44 #define lstat adb_stat
     45 
     46 // mingw doesn't define S_IFLNK or S_ISLNK.
     47 #define S_IFLNK 0120000
     48 #define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
     49 
     50 // mingw defines S_IFBLK to a different value from bionic.
     51 #undef S_IFBLK
     52 #define S_IFBLK 0060000
     53 #undef S_ISBLK
     54 #define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK)
     55 #endif
     56 
     57 // Make sure that host file mode values match the ones on the device.
     58 static_assert(S_IFMT == 00170000, "");
     59 static_assert(S_IFLNK == 0120000, "");
     60 static_assert(S_IFREG == 0100000, "");
     61 static_assert(S_IFBLK == 0060000, "");
     62 static_assert(S_IFDIR == 0040000, "");
     63 static_assert(S_IFCHR == 0020000, "");
     64