Description: Clarify pointer usage
Author: Christoph Biedl <debian.axhn@manchmal.in-ulm.de>
Bug: https://bitbucket.org/ripencc/bgpdump/issues/30/
Last-Update: 2016-07-19

    The read_asn function handles pointer to as_t and u_int16_t as well,
    behaviour is controlled by the third parameter.

    Type-cast parameter 2 to avoid incompatible-pointer-types warnings
    from gcc.

--- a/bgpdump_lib.c
+++ b/bgpdump_lib.c
@@ -337,10 +337,10 @@
     switch(entry->subtype) {
     case BGPDUMP_SUBTYPE_MRTD_BGP_UPDATE:
     case BGPDUMP_SUBTYPE_MRTD_BGP_KEEPALIVE:
-	read_asn(s, &entry->body.mrtd_message.source_as, ASN16_LEN);
+	read_asn(s, (as_t*) &entry->body.mrtd_message.source_as, ASN16_LEN);
 	entry->body.mrtd_message.source_ip = mstream_get_ipv4(s);
 
-	read_asn(s, &entry->body.mrtd_message.destination_as, ASN16_LEN);
+	read_asn(s, (as_t*) &entry->body.mrtd_message.destination_as, ASN16_LEN);
 	entry->body.mrtd_message.destination_ip = mstream_get_ipv4(s);
 
 	mstream_t withdraw_stream = mstream_copy(s, mstream_getw(s, NULL));
@@ -355,7 +355,7 @@
 								   &entry->body.mrtd_message.incomplete);
 	break;
     case BGPDUMP_SUBTYPE_MRTD_BGP_STATE_CHANGE:
-	read_asn(s, &entry->body.mrtd_state_change.destination_as, ASN16_LEN);
+	read_asn(s, (as_t*) &entry->body.mrtd_state_change.destination_as, ASN16_LEN);
 	entry->body.mrtd_state_change.destination_ip = mstream_get_ipv4(s);
 	entry->body.mrtd_state_change.old_state = mstream_getw(s, NULL);
 	entry->body.mrtd_state_change.new_state = mstream_getw(s, NULL);