Fix some memory leaks.

src/interfaces/odbc/environ.c

@@ -425,6 +425,7 @@ char rv = 1;
 		if (conns[lf] && conns[lf]->henv == self)
 			rv = rv && CC_Destructor(conns[lf]);
 	}
+	free(self);
 
 	mylog("exit EN_Destructor: rv = %d\n", rv);
 	return rv;

src/interfaces/odbc/socket.c

@@ -58,11 +58,18 @@ SocketClass *rv;
 
 		rv->buffer_in = (unsigned char *) malloc(globals.socket_buffersize);
 		if ( ! rv->buffer_in)
+		{
+			free(rv);
 			return NULL;
+		}
 
 		rv->buffer_out = (unsigned char *) malloc(globals.socket_buffersize);
 		if ( ! rv->buffer_out)
+		{
+			free(rv->buffer_in);
+			free(rv);
 			return NULL;
+		}
 		
         rv->errormsg = NULL;
         rv->errornumber = 0;