socket-util: Move sock_errno() to socket-util.

[sliver-openvswitch.git] / lib / socket-util.h

diff --git a/lib/socket-util.h b/lib/socket-util.h
index d8fbd68..6e55a4c 100644 (file)
--- a/lib/socket-util.h
+++ b/lib/socket-util.h
@@ -17,6 +17,7 @@
 #ifndef SOCKET_UTIL_H
 #define SOCKET_UTIL_H 1
 
+#include <errno.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/time.h>
@@ -99,4 +100,15 @@ static inline int rpl_setsockopt(int sock, int level, int optname,
 }
 #endif
 
+/* In Windows platform, errno is not set for socket calls.
+ * The last error has to be gotten from WSAGetLastError(). */
+static inline int sock_errno(void)
+{
+#ifdef _WIN32
+    return WSAGetLastError();
+#else
+    return errno;
+#endif
+}
+
 #endif /* socket-util.h */