keyfiles: Fixed the windows defines.

src/keyfiles.c

@@ -33,7 +33,7 @@
 #include <string.h>
 #include <stdlib.h>
 
-#ifndef _WIN32
+#ifdef _WIN32
 # if _MSC_VER >= 1400
 #  include <io.h>
 #  undef open
@@ -43,6 +43,7 @@
 #  undef read
 #  define read _read
 # endif /* _MSC_VER */
+#else
 # include <arpa/inet.h>
 #endif