Basic server, needs to be tested, now need to write client code

src/main.cpp

@@ -1,6 +1,6 @@
 /*
-- [ ] Setup so that both client and server are in one program?
-    - [ ] I would like to make it nicely visible in debugger, I don't want to switch etc.
+- [ ] Create threads and put client code, server code on separate
+- [ ] Create client code
 
 */
 #define WIN32_LEAN_AND_MEAN
@@ -173,10 +173,9 @@ void serialize_addrinfo(struct addrinfo* in) {
     }
 }
 
-
 #define PORT "8000"
 
-int main() {
+void run_server() {
     WSADATA wsaData;
 
     int err_wsa_startup = WSAStartup(MAKEWORD(2, 2), &wsaData);
@@ -236,6 +235,32 @@ int main() {
 
     debugf("waiting for connections...");
 
+    sockaddr_storage their_addr = {};
+    while (1) {
+        int their_addrlen = sizeof(their_addr);
+        SOCKET conn_sock = accept(socket_fd, (sockaddr *)&their_addr, &their_addrlen);
+        if (conn_sock == -1) {
+            debugf("failed to accept connection %s", serialize_error_code(WSAGetLastError()));
+            continue;
+        }
+        defer { closesocket(conn_sock); };
+
+        // @todo: this might be a little wrong, also the win32 and unix seem to differ on field names in sockaddr
+        char s[INET6_ADDRSTRLEN];
+        sockaddr *n = (sockaddr *)&their_addr;
+        inet_ntop(their_addr.ss_family, n->sa_data, s, sizeof(s));
+        debugf("server: got connection from: %s", s);
+
+        const char *msg = "Hello world";
+        int send_err_code = send(conn_sock, msg, (int)strlen(msg), 0);
+        if (send_err_code == -1) {
+            debugf("failed to send message %s", serialize_error_code(WSAGetLastError()));
+        }
+    }
+}
+
+int main() {
+    run_server();
     debugf("exiting...");
     return 0;
 }