/**
* find a client
*/
p_client next_client_by_message(p_client client, char *message) {
static int oldclient = 0;
// return to start if client is null
if (client == 0) {
oldclient =0;
}
p_client check = get_client_idx(oldclient);
// if some unknown client is given, find it.
if (client != check) {
oldclient = find_client_idx(client);
}
// check next client
oldclient++;
if ( oldclient < count_clients()) {
// if it matches the message, return it
check = get_client_idx(oldclient);
if (filter_match(check, message)) {
return check;
}
// else check next client
return next_client_by_message(check, message);
}
return 0;
}
/**
* return the index of a client.. or -1;
*/
int find_client_idx(p_client client) {
int i;
for (i = 0; i < count_clients(); i++) {
if (get_client_idx(i) == client) {
return i;
}
}
return -1;
}
int run_server(int argc, char ** argv) {
DEBUG_OUT("---DEBUG MODE---\n");
if (argc < 4) {
printf("Usage: %s <port> <adminname> <adminpass>\n", argv[0]);
return 0;
}
server_port = atoi(argv[1]);
DEBUG_OUT("Port: %d\n", server_port);
strcpy(admin_name, argv[2]);
strcpy(admin_pass, argv[3]);
/* Create server socket */
server_socket = socket(AF_INET, SOCK_STREAM, 0);
if (server_socket == -1) {
perror("socket");
exit(-1);
}
DEBUG_OUT("Got server socket\n");
/* Reuse address */
socket_flags = 1;
if (setsockopt(server_socket, SOL_SOCKET, SO_REUSEADDR, &socket_flags, sizeof(socket_flags)) < 0) {
perror("setsockopt");
exit(-1);
}
/* Make socket non blocking */
socket_flags = fcntl(server_socket, F_GETFL, 0);
if (fcntl(server_socket, F_SETFL, socket_flags | O_NONBLOCK) != 0) {
perror("fcntl");
exit(-1);
}
DEBUG_OUT("Server socket is non blocking\n");
/* Bind to our port */
memset(&server_addr, 0, sizeof(struct sockaddr_in));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(server_port);
server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(server_socket, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) {
perror("bind");
exit(-1);
}
DEBUG_OUT("Server socket is bound\n");
/* Allocate queue for 10 sockets */
listen(server_socket, 10);
DEBUG_OUT("Server socket has room for 10 incoming connections\n");
/* Add to readset */
FD_ZERO(&readset);
FD_SET(server_socket, &readset);
/* Initialize client buffer */
memset(client_buffer, 0, sizeof(client_buffer));
for (i = 0; i < MAX_CLIENTS - 1; i++) {
client_buffer[i].next = &client_buffer[i + 1];
}
free_clients = &client_buffer[0];
/* Run IO loop */
while (1) {
reads = readset;
DEBUG_OUT("Waiting forever for IO. ");
DEBUG_OUT("Active client count: %d", count_clients(active_clients));
DEBUG_OUT(" Free client count: %d\n", count_clients(free_clients));
selected = select(FD_SETSIZE, &reads, NULL, NULL, NULL);
if (selected < 0) {
perror("select");
exit(-1);
}
DEBUG_OUT("select() returned %d\n", selected);
if (selected > 0) {
handle_clients();
handle_server();
}
}
return 0;
}
