core: parser - helper function to return URI format for local rcv socket

src/core/parser/msg_parser.c

@@ -1102,6 +1102,91 @@ int get_src_uri(sip_msg_t *m, int tmode, str *uri)
 	return 0;
 }
 
+/**
+ * get received-on-socket ip, port and protocol in SIP URI format
+ * - tmode - 0: short format (transport=udp is not added, being default)
+ */
+int get_rcv_socket_uri(sip_msg_t *m, int tmode, str *uri)
+{
+	static char buf[MAX_URI_SIZE];
+	char* p;
+	str ip, port;
+	int len;
+	str proto;
+
+	if (!uri || !m || !m->rcv.bind_address) {
+		ERR("invalid parameter value\n");
+		return -1;
+	}
+
+	if(tmode==0) {
+		switch(m->rcv.proto) {
+			case PROTO_NONE:
+			case PROTO_UDP:
+				proto.s = 0; /* Do not add transport parameter, UDP is default */
+				proto.len = 0;
+			break;
+			default:
+				if(get_valid_proto_string(m->rcv.proto, 1, 0, &proto)<0) {
+					ERR("unknown transport protocol\n");
+					return -1;
+				}
+		}
+	} else {
+		if(get_valid_proto_string(m->rcv.proto, 1, 0, &proto)<0) {
+			ERR("unknown transport protocol\n");
+			return -1;
+		}
+	}
+
+	ip.s = m->rcv.bind_address->address_str.s;
+	ip.len = m->rcv.bind_address->address_str.len;
+
+	port.s = m->rcv.bind_address->port_no_str.s;
+	port.len = m->rcv.bind_address->port_no_str.len;
+
+	len = 4 + ip.len + 2*(m->rcv.src_ip.af==AF_INET6)+ 1 + port.len;
+	if (proto.s) {
+		len += TRANSPORT_PARAM_LEN;
+		len += proto.len;
+	}
+
+	if (len > MAX_URI_SIZE) {
+		ERR("buffer too small\n");
+		return -1;
+	}
+
+	p = buf;
+	memcpy(p, "sip:", 4);
+	p += 4;
+
+	if (m->rcv.src_ip.af==AF_INET6)
+		*p++ = '[';
+	memcpy(p, ip.s, ip.len);
+	p += ip.len;
+	if (m->rcv.src_ip.af==AF_INET6)
+		*p++ = ']';
+
+	*p++ = ':';
+
+	memcpy(p, port.s, port.len);
+	p += port.len;
+
+	if (proto.s) {
+		memcpy(p, TRANSPORT_PARAM, TRANSPORT_PARAM_LEN);
+		p += TRANSPORT_PARAM_LEN;
+
+		memcpy(p, proto.s, proto.len);
+		p += proto.len;
+	}
+
+	uri->s = buf;
+	uri->len = len;
+
+	return 0;
+}
+
+
 /*! \brief returns a pointer to the begining of the msg's body
  */
 char* get_body(sip_msg_t* const msg)

src/core/parser/msg_parser.h

@@ -498,4 +498,9 @@ void msg_ldata_reset(sip_msg_t*);
  */
 int get_src_uri(sip_msg_t *m, int tmode, str *uri);
 
+/**
+ * get received-on-socket ip, port and protocol in SIP URI format
+ */
+int get_rcv_socket_uri(sip_msg_t *m, int tmode, str *uri);
+
 #endif