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

@@ -13,6 +13,8 @@
 #include <netinet/in.h>
 #include <netdb.h>
 
+#include <net/address.hpp>
+
 namespace rmrf::net {
 
 	std::string format_network_error(int error) {
@@ -67,9 +69,44 @@ namespace rmrf::net {
 		}
 		return true;
 	}
+	
+	bool is_plain_ip_address(const std::string& interface_description) {
+		if(interface_description.starts_with("[") && interface_description.ends_with("]") && is_valid_ip6addr(interface_description.substr(1, interface_description.length() - 2).c_str())) {
+			return true;
+		}
+		return is_valid_ip4addr(interface_description.c_str()) || is_valid_ip6addr(interface_description.c_str());
+	}
+	
+	socketaddr parse_plain_ip_address(const std::string& interface_description, const uint16_t port, const socket_t socket_type) {
+		if(interface_description.find(':') != std::string::npos) {
+			// Assume IPv6
+			struct in6_addr addr;
+			if (interface_description.starts_with("[") && interface_description.ends_with("]")) {
+				details::inet6_aton(interface_description.substr(1, interface_description.length() - 2).c_str(), addr);
+			}
+			details::inet6_aton(interface_description.c_str(), addr);
+			
+			sockaddr_in6 addr_ip6;
+			addr_ip6.sin6_family = AF_INET6;
+			addr_ip6.sin6_addr = addr;
+			addr_ip6.sin6_port = htons(port);
+			socketaddr sa{addr_ip6};
+			return sa;
+		} else {
+			sockaddr_in addr_ip4;
+			addr_ip4.sin_family = AF_INET;
+			addr_ip4.sin_addr.s_addr = inet_aton(interface_description.c_str());
+			addr_ip4.sin_port = htons(80);
+			socketaddr sa{addr_ip4};
+			return sa;
+		}
+	}
 
 	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
+		if(is_plain_ip_address(interface_description)) {
+			std::list<socketaddr> l = {parse_plain_ip_address(interface_description, port, socket_type)};
+			return l;
+		}
 		struct addrinfo hints = {};
 		struct addrinfo* addrs;
 		hints.ai_family = AF_INET6;