added enet_socket_get_option() and ENET_SOCKOPT_ERROR

ChangeLog

@@ -1,3 +1,6 @@
+* added enet_socket_get_option() and ENET_SOCKOPT_ERROR
+* added enet_host_random_seed() platform stub
+
 ENet 1.3.8 (June 2, 2013):
 
 * added enet_linked_version() for checking the linked version 

include/enet/enet.h

@@ -60,7 +60,8 @@ typedef enum _ENetSocketOption
    ENET_SOCKOPT_SNDBUF    = 4,
    ENET_SOCKOPT_REUSEADDR = 5,
    ENET_SOCKOPT_RCVTIMEO  = 6,
-   ENET_SOCKOPT_SNDTIMEO  = 7
+   ENET_SOCKOPT_SNDTIMEO  = 7,
+   ENET_SOCKOPT_ERROR     = 8
 } ENetSocketOption;
 
 typedef enum _ENetSocketShutdown
@@ -491,6 +492,7 @@ ENET_API int        enet_socket_send (ENetSocket, const ENetAddress *, const ENe
 ENET_API int        enet_socket_receive (ENetSocket, ENetAddress *, ENetBuffer *, size_t);
 ENET_API int        enet_socket_wait (ENetSocket, enet_uint32 *, enet_uint32);
 ENET_API int        enet_socket_set_option (ENetSocket, ENetSocketOption, int);
+ENET_API int        enet_socket_get_option (ENetSocket, ENetSocketOption, int *);
 ENET_API int        enet_socket_shutdown (ENetSocket, ENetSocketShutdown);
 ENET_API void       enet_socket_destroy (ENetSocket);
 ENET_API int        enet_socketset_select (ENetSocket, ENetSocketSet *, ENetSocketSet *, enet_uint32);

unix.c

@@ -271,6 +271,19 @@ enet_socket_set_option (ENetSocket socket, ENetSocketOption option, int value)
     return result == -1 ? -1 : 0;
 }
 
+int
+enet_socket_get_option (ENetSocket socket, ENetSocketOption option, int * value)
+{
+    int result = -1;
+    switch (option)
+    {
+        case ENET_SOCKOPT_ERROR:
+            result = setsockopt (socket, SOL_SOCKET, SO_ERROR, (char *) value, sizeof (int));
+            break;
+    }
+    return result == -1 ? -1 : 0;
+}
+
 int
 enet_socket_connect (ENetSocket socket, const ENetAddress * address)
 {

win32.c

@@ -201,6 +201,19 @@ enet_socket_set_option (ENetSocket socket, ENetSocketOption option, int value)
     return result == SOCKET_ERROR ? -1 : 0;
 }
 
+int
+enet_socket_get_option (ENetSocket socket, ENetSocketOption option, int * value)
+{
+    int result = SOCKET_ERROR;
+    switch (option)
+    {
+        case ENET_SOCKOPT_ERROR:
+            result = setsockopt (socket, SOL_SOCKET, SO_ERROR, (char *) value, sizeof (int));
+            break;
+    }
+    return result == SOCKET_ERROR ? -1 : 0;
+}
+
 int
 enet_socket_connect (ENetSocket socket, const ENetAddress * address)
 {