diff --git a/libc/include/sys/socket.h b/libc/include/sys/socket.h
index ed7c4a0..32d98ea 100644
--- a/libc/include/sys/socket.h
+++ b/libc/include/sys/socket.h
@@ -25,6 +25,7 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+
 #ifndef _SYS_SOCKET_H_
 #define _SYS_SOCKET_H_
 
@@ -32,6 +33,7 @@
 #include <sys/types.h>
 #include <linux/socket.h>
 
+#include <asm/fcntl.h>
 #include <asm/socket.h>
 #include <linux/sockios.h>
 #include <linux/uio.h>
@@ -61,13 +63,15 @@
 #define SOCK_PACKET      10
 #endif
 
-/* BIONIC: second argument to shutdown() */
+#define SOCK_CLOEXEC O_CLOEXEC
+#define SOCK_NONBLOCK O_NONBLOCK
+
 enum {
-    SHUT_RD = 0,        /* no more receptions */
+  SHUT_RD = 0,
 #define SHUT_RD         SHUT_RD
-    SHUT_WR,            /* no more transmissions */
+  SHUT_WR,
 #define SHUT_WR         SHUT_WR
-    SHUT_RDWR           /* no more receptions or transmissions */
+  SHUT_RDWR
 #define SHUT_RDWR       SHUT_RDWR
 };