diff -r 560e07f7a6a1 -r f7dfef88947d src/client.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/client.c	Mon Mar 17 15:39:36 2014 +0100
@@ -0,0 +1,83 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2014 Mike Becker. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "terminal-chess.h"
+#include "input.h"
+#include <ncurses.h>
+
+int client_run(Settings *settings) {
+    Server server;
+    int exit_code = EXIT_SUCCESS;
+
+    if (net_find(&server, settings->serverhost, settings->port)) {
+        fprintf(stderr, "Can't find server\n");
+        exit_code = EXIT_FAILURE;
+        goto quit;
+    }
+
+    if (net_connect(&server)) {
+        perror("Can't connect to server");
+        exit_code = EXIT_FAILURE;
+        goto quit;
+    }
+
+    /* net version handshake */
+    int fd = server.fd;
+    if (net_recieve_code(fd) != NETCODE_VERSION) {
+        fprintf(stderr, "Server uses an incompatible software version.\n");
+        exit_code = EXIT_FAILURE;
+        goto quit;
+    } else {
+        net_send_code(fd, NETCODE_VERSION);
+    }
+
+    printw("Connection established!\n\n");
+    refresh();
+
+    if (net_recieve_code(fd) == NETCODE_GAMEINFO) {
+        net_recieve_data(fd, &(settings->gameinfo),
+            sizeof(settings->gameinfo));
+        dump_gameinfo(&(settings->gameinfo));
+        printw("Accept challenge (y/n)? ");
+        if (prompt_yesno()) {
+            net_send_code(fd, NETCODE_ACCEPT);
+            // TODO: start game
+        } else {
+            net_send_code(fd, NETCODE_DECLINE);
+        }
+    } else {
+        fprintf(stderr, "Server sent invalid gameinfo.\n");
+        exit_code = EXIT_FAILURE;
+        goto quit;
+    }
+    
+quit:
+    net_destroy(&server);
+    return exit_code;
+}