implement basic network server

tests/tcptest.c

@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "lfnetwork.h"
+
+void test_handler(Server *s) {
+    struct sockaddr_storage client_addr;
+        socklen_t client_addr_sz = sizeof(client_addr); 
+        int new_fd = accept(s->fd, (struct sockaddr *)&client_addr, &client_addr_sz);
+        if (new_fd == -1) {
+            printf("failed to accept. Errno: %d\n", errno);
+            return;
+        }
+
+        char buf[33];
+        inet_ntop(client_addr.ss_family, get_in_addr((struct sockaddr *)&client_addr), buf, 32);
+        printf("Received connection from %s\n", buf);
+
+        if (send(new_fd, "TEST SEND", 10, 0) == -1) {
+            printf("Failed to send hello world. Errno: %d\n", errno);
+        }
+        close(new_fd);
+}
+
+int main(int argc, char **argv) {
+    Server *server = new_server(SERVERTYPE_TCP, "18632", test_handler);
+    serve(server, DEFAULT_BACKLOG);
+    delete_server(server);
+}

tests/tests.c

@@ -4,6 +4,7 @@
 #include <unistd.h>
 
 #include "lflinkedlist.h"
+#include "lfnetwork.h"
 #include "lfset.h"
 #include "lfstack.h"
 #include "lfbinarytree.h"
@@ -426,4 +427,4 @@ int main() {
 #endif
 
     return 0;
-}
+}