Auto merge of #2194 - coolreader18:windows-fcntl, r=JohnTitor

Add all O_* codes from fcntl.h on windows

Author: bors

libc-test/build.rs

@@ -584,6 +584,8 @@ fn test_windows(target: &str) {
             // FIXME: API error:
             // SIG_ERR type is "void (*)(int)", not "int"
             "SIG_ERR" => true,
+            // FIXME: newer windows-gnu environment on CI?
+            "_O_OBTAIN_DIR" if gnu => true,
             _ => false,
         }
     });

libc-test/semver/windows.txt

@@ -94,16 +94,25 @@ LC_NUMERIC
 LC_TIME
 L_tmpnam
 NSIG
+O_RDONLY
+O_WRONLY
+O_RDWR
 O_APPEND
-O_BINARY
 O_CREAT
+O_TRUNC
 O_EXCL
-O_NOINHERIT
-O_RDONLY
-O_RDWR
 O_TEXT
-O_TRUNC
-O_WRONLY
+O_BINARY
+_O_WTEXT
+_O_U16TEXT
+_O_U8TEXT
+O_RAW
+O_NOINHERIT
+O_TEMPORARY
+_O_SHORT_LIVED
+_O_OBTAIN_DIR
+O_SEQUENTIAL
+O_RANDOM
 RAND_MAX
 SEEK_CUR
 SEEK_END

src/windows/mod.rs

@@ -117,16 +117,27 @@ pub const BUFSIZ: ::c_uint = 512;
 pub const FOPEN_MAX: ::c_uint = 20;
 pub const FILENAME_MAX: ::c_uint = 260;
 
-pub const O_RDONLY: ::c_int = 0;
-pub const O_WRONLY: ::c_int = 1;
-pub const O_RDWR: ::c_int = 2;
-pub const O_APPEND: ::c_int = 8;
-pub const O_CREAT: ::c_int = 256;
-pub const O_EXCL: ::c_int = 1024;
-pub const O_TEXT: ::c_int = 16384;
-pub const O_BINARY: ::c_int = 32768;
-pub const O_NOINHERIT: ::c_int = 128;
-pub const O_TRUNC: ::c_int = 512;
+// fcntl.h
+pub const O_RDONLY: ::c_int = 0x0000;
+pub const O_WRONLY: ::c_int = 0x0001;
+pub const O_RDWR: ::c_int = 0x0002;
+pub const O_APPEND: ::c_int = 0x0008;
+pub const O_CREAT: ::c_int = 0x0100;
+pub const O_TRUNC: ::c_int = 0x0200;
+pub const O_EXCL: ::c_int = 0x0400;
+pub const O_TEXT: ::c_int = 0x4000;
+pub const O_BINARY: ::c_int = 0x8000;
+pub const _O_WTEXT: ::c_int = 0x10000;
+pub const _O_U16TEXT: ::c_int = 0x20000;
+pub const _O_U8TEXT: ::c_int = 0x40000;
+pub const O_RAW: ::c_int = O_BINARY;
+pub const O_NOINHERIT: ::c_int = 0x0080;
+pub const O_TEMPORARY: ::c_int = 0x0040;
+pub const _O_SHORT_LIVED: ::c_int = 0x1000;
+pub const _O_OBTAIN_DIR: ::c_int = 0x2000;
+pub const O_SEQUENTIAL: ::c_int = 0x0020;
+pub const O_RANDOM: ::c_int = 0x0010;
+
 pub const S_IFCHR: ::c_int = 8192;
 pub const S_IFDIR: ::c_int = 16384;
 pub const S_IFREG: ::c_int = 32768;