diff --git a/miniupnpc/receivedata.c b/miniupnpc/receivedata.c
index f9b9901..0c9ae02 100644
--- a/miniupnpc/receivedata.c
+++ b/miniupnpc/receivedata.c
@@ -1,16 +1,17 @@
-/* $Id: receivedata.c,v 1.4 2012/06/23 22:34:47 nanard Exp $ */
+/* $Id: receivedata.c,v 1.6 2014/11/13 13:51:52 nanard Exp $ */
 /* Project : miniupnp
  * Website : http://miniupnp.free.fr/
  * Author : Thomas Bernard
- * Copyright (c) 2011-2012 Thomas Bernard
+ * Copyright (c) 2011-2014 Thomas Bernard
  * This software is subject to the conditions detailed in the
  * LICENCE file provided in this distribution. */
 
 #include <stdio.h>
+#include <string.h>
 #ifdef _WIN32
 #include <winsock2.h>
 #include <ws2tcpip.h>
-#else
+#else /* _WIN32 */
 #include <unistd.h>
 #if defined(__amigaos__) && !defined(__amigaos4__)
 #define socklen_t int
@@ -21,10 +22,10 @@
 #include <netinet/in.h>
 #if !defined(__amigaos__) && !defined(__amigaos4__)
 #include <poll.h>
-#endif
+#endif	/* !defined(__amigaos__) && !defined(__amigaos4__) */
 #include <errno.h>
 #define MINIUPNPC_IGNORE_EINTR
-#endif
+#endif /* _WIN32 */
 
 #ifdef _WIN32
 #define PRINT_SOCKET_ERROR(x)    printf("Socket error: %s, %d\n", x, WSAGetLastError());
@@ -42,20 +43,20 @@ receivedata(int socket,
 #if MINIUPNPC_GET_SRC_ADDR
 	struct sockaddr_storage src_addr;
 	socklen_t src_addr_len = sizeof(src_addr);
-#endif
+#endif	/* MINIUPNPC_GET_SRC_ADDR */
     int n;
 #if !defined(_WIN32) && !defined(__amigaos__) && !defined(__amigaos4__)
 	/* using poll */
     struct pollfd fds[1]; /* for the poll */
 #ifdef MINIUPNPC_IGNORE_EINTR
     do {
-#endif
+#endif	/* MINIUPNPC_IGNORE_EINTR */
         fds[0].fd = socket;
         fds[0].events = POLLIN;
         n = poll(fds, 1, timeout);
 #ifdef MINIUPNPC_IGNORE_EINTR
     } while(n < 0 && errno == EINTR);
-#endif
+#endif	/* MINIUPNPC_IGNORE_EINTR */
     if(n < 0) {
         PRINT_SOCKET_ERROR("poll");
         return -1;
@@ -63,7 +64,7 @@ receivedata(int socket,
 		/* timeout */
         return 0;
     }
-#else /* !defined(_WIN32) && !defined(__amigaos__) && !defined(__amigaos4__) */
+#else	/* !defined(_WIN32) && !defined(__amigaos__) && !defined(__amigaos4__) */
 	/* using select under _WIN32 and amigaos */
     fd_set socketSet;
     TIMEVAL timeval;
@@ -78,13 +79,13 @@ receivedata(int socket,
     } else if(n == 0) {
         return 0;
     }
-#endif
+#endif	/* !defined(_WIN32) && !defined(__amigaos__) && !defined(__amigaos4__) */
 #if MINIUPNPC_GET_SRC_ADDR
 	n = recvfrom(socket, data, length, 0,
 	             (struct sockaddr *)&src_addr, &src_addr_len);
-#else
+#else	/* MINIUPNPC_GET_SRC_ADDR */
 	n = recv(socket, data, length, 0);
-#endif
+#endif	/* MINIUPNPC_GET_SRC_ADDR */
 	if(n<0) {
 		PRINT_SOCKET_ERROR("recv");
 	}
@@ -93,12 +94,11 @@ receivedata(int socket,
 		const struct sockaddr_in6 * src_addr6 = (struct sockaddr_in6 *)&src_addr;
 #ifdef DEBUG
 		printf("scope_id=%u\n", src_addr6->sin6_scope_id);
-#endif
+#endif	/* DEBUG */
 		if(scope_id)
 			*scope_id = src_addr6->sin6_scope_id;
 	}
-#endif
+#endif	/* MINIUPNPC_GET_SRC_ADDR */
 	return n;
 }
 
-