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/**
* Localchat
* Ben Burwell
*
* Parse received command packets
*/
void parse_command(char packet[256]) {
char separators[4] = ":";
char *type;
char *peer_username;
char *peer_ip;
char *peer_in_chat;
int updated_peer;
int i;
type = strtok(packet, separators);
if (strcmp(type, "ONLINE") == 0) {
// send a status broadcast
status_broadcast_once();
} else if (strcmp(type, "STATUS") == 0) {
// lock the peers
pthread_mutex_lock(&peer_table_lock);
// get username from packet
peer_username = strtok(NULL, separators);
peer_ip = strtok(NULL, separators);
peer_in_chat = strtok(NULL, separators);
// so we know whether to add a peer later
updated_peer = 0;
for (i = 0; i < num_peers_in_table; i++) {
if (strcmp(peer_username, peers[i].username) == 0) {
// found a matching username, update the peer
strcpy(peers[i].in_chat, peer_in_chat);
time( &(peers[i].last_seen) );
// we updated the peers, so we won't add it later
updated_peer = 1;
}
}
if (!updated_peer) {
// we didn't update a peer, so we need to add it to the table
strcpy(peers[num_peers_in_table].username, peer_username);
strcpy(peers[num_peers_in_table].ip, peer_ip);
strcpy(peers[num_peers_in_table].in_chat, peer_in_chat);
time( &(peers[num_peers_in_table].last_seen) );
num_peers_in_table++;
//printf("*** %s has come online. \n", peer_username);
}
pthread_mutex_unlock(&peer_table_lock);
} else {
if (DEBUG) printf("Unknown message type: %s \n", type);
}
}
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