Add O_DIRECT for NetBSD and FreeBSD-like

Author: equal-l2

src/unix/bsd/freebsdlike/mod.rs

@@ -273,6 +273,8 @@ pub const L_tmpnam: ::c_uint = 1024;
 pub const TMP_MAX: ::c_uint = 308915776;
 
 pub const O_NOCTTY: ::c_int = 32768;
+pub const O_DIRECT: ::c_int = 0x00010000;
+
 pub const S_IFIFO: mode_t = 4096;
 pub const S_IFCHR: mode_t = 8192;
 pub const S_IFBLK: mode_t = 24576;

src/unix/bsd/netbsdlike/netbsd/mod.rs

@@ -271,6 +271,7 @@ pub const O_ALT_IO: ::c_int = 0x40000;
 pub const O_NOSIGPIPE: ::c_int = 0x1000000;
 pub const O_SEARCH: ::c_int = 0x800000;
 pub const O_DIRECTORY: ::c_int = 0x200000;
+pub const O_DIRECT : ::c_int = 0x00080000;
 
 pub const MS_SYNC : ::c_int = 0x4;
 pub const MS_INVALIDATE : ::c_int = 0x2;