/*
* connect()
*
* Connect to the server
*
* Precondition: The server is running, and all fields are filled out
* Postcondition: A connection to the server is established, the connect window is destroyed,
* and the main window's widgets are reenabled
*
* @param GtkWidget* w The widget clicked. In this case, the ok button
* @param gpointer d The connect window
*/
void connect_server(GtkWidget* w, gpointer d)
{
char* message;
char* host;
int port;
struct sockaddr_in serv_addr;
struct hostent* server;
port = my_atoi((char*) gtk_entry_get_text((GtkEntry*) gl_env.user_input[1]));
message = (char*) gtk_entry_get_text((GtkEntry*) gl_env.user_input[2]);
host = (char*) gtk_entry_get_text((GtkEntry*) gl_env.user_input[0]);
if(port == 0 || my_strcmp(message, "") == 0 || my_strcmp(host, "") == 0) {
g_print("Please fill out all fields\n");
return;
}
if(port <= 0 || port > 65535)
{
my_str("Invalid port number!\n");
return;
}
memset(&serv_addr.sin_zero, 0, 8);
gl_env.sockfd = socket(AF_INET, SOCK_STREAM, 0);
if((server = gethostbyname(host)) == NULL)
{
my_str("Couldn't find the server hostname!\n");
return;
}
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(port);
memcpy(&serv_addr.sin_addr.s_addr, server->h_addr, server->h_length);
if(connect(gl_env.sockfd, (struct sockaddr*) &serv_addr, sizeof(serv_addr)) < 0)
{
my_str("Connection to server failed!\n");
return;
}
if(write(gl_env.sockfd, message, my_strlen(message) + 1) < 0)
{
my_str("Communication with server failed!\n");
return;
}
enable_main();
g_print("Connected!\n");
gtk_button_set_label((GtkButton*) gl_env.connect_button, "Disconnect");
gtk_widget_destroy(d);
}
void close_quit_window(GtkWidget* w, gpointer d)
{
enable_main();
gtk_widget_destroy(w);
}
