First unit tests

Bugs that still remain:

• The socketaddr factory (DNS lookup) does not yet seam to be fully functional.
• UDP socket test needs to pass
• TCP socket test needs to pass
• Unit Test for socketaddr Factory lookups
• Segfault at test shutdown needs to be fixed.
• fcntl needs to be checked for correct flag retuns

src/net/sock_address_factory.cpp

@@ -4,7 +4,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include <list>
 
 #include <arpa/inet.h>
 
@@ -66,16 +65,17 @@ namespace rmrf::net {
 		} else {
 			throw std::invalid_argument("The resulting address family should exist. Instead it is " + std::to_string(looked_up_addrs->ai_family));
 		}
-		return false;
+		return true;
 	}
 
-	socketaddr get_first_general_socketaddr(const std::string& interface_description, const uint16_t port, const socket_t socket_type) {
+	std::list<socketaddr> get_socketaddr_list(const std::string& interface_description, const uint16_t port, const socket_t socket_type) {
 		// TODO handle lookup of multiple addresses
 		struct addrinfo hints = {};
 		struct addrinfo* addrs;
 		hints.ai_family = AF_INET6;
 		hints.ai_socktype = socket_type == TCP ? SOCK_STREAM : SOCK_DGRAM;
 		hints.ai_protocol =  socket_type == TCP ? IPPROTO_TCP : IPPROTO_UDP;
+		
 		auto dns_error = getaddrinfo(interface_description.c_str(), NULL, &hints, &addrs);
 		if (dns_error != 0) {
 			hints.ai_family = AF_UNSPEC;
@@ -90,6 +90,11 @@ namespace rmrf::net {
 			decode_address(l, result_ptr, port);
 		}
 		freeaddrinfo(addrs);
+		return l;
+	}
+	
+	socketaddr get_first_general_socketaddr(const std::string& interface_description, const uint16_t port, const socket_t socket_type) {
+		const auto l = get_socketaddr_list(interface_description, port, socket_type);
 		if (l.size() > 0) {
 			return l.front();
 		} else {