void CreateTcpSocket2()
{
/*-------------------------Create a TCP Socket 2-----------------------------*/
t_server3.sin_family = AF_INET;
t_server3.sin_addr.s_addr = htonl(INADDR_ANY);
t_server3.sin_port = htons(10253);
tcp_sock3 = socket (AF_INET,SOCK_STREAM,0);
if (tcp_sock3 <0)
{
perror("Error in Creating Socket");
exit(-1);
}
reusePort(tcp_sock3);
/*--------------------Binding to the TCP Server port-----------------------*/
if ((bind( tcp_sock3, (SA *) &t_server3, sizeof(t_server3))) == -1)
{
close(tcp_sock3);
perror("Error in Binding in Socket 1");
exit(-1);
}
/*-------------------listen for the clients-----------------------*/
listen(tcp_sock3,22);
}
main(int argc, char* argv[])
{
int sd;
struct sockaddr_in server;
char buf[512];
int rc;
int msg_flags;
struct sockaddr_in cliaddr;
int len;
struct sctp_sndrcvinfo sri;
struct sctp_event_subscribe evnts;
int stream_increment=1;
struct sctp_initmsg initm;
server.sin_family = AF_INET;
server.sin_addr.s_addr = htonl(INADDR_ANY);
server.sin_port = htons(atoi(argv[1]));
sd = socket (AF_INET,SOCK_SEQPACKET,IPPROTO_SCTP);
reusePort(sd);
if ( bind( sd, (SA *) &server, sizeof(server) ) < 0 ){
printf("error binding\n");
exit(-1) ;
}
listen(sd, 1);
for(;;){
len = sizeof(struct sockaddr_in);
rc = sctp_recvmsg(sd, buf, sizeof(buf), (SA *)&cliaddr, &len, &sri, &msg_flags);
buf[rc]= (char) NULL;
printf("sctp_recvmsg: %s\n", buf);
rc = recvfrom (sd, buf, sizeof(buf), 0, (SA *) &cliaddr, &len);
buf[rc]= (char) NULL;
printf("recvfrom: %s\n", buf);
len = sizeof(cliaddr);
getpeername(sd, (SA *) &cliaddr, &len);
printf("remote addr: %s, port %d\n",
inet_ntop(AF_INET, &cliaddr.sin_addr, buf,
sizeof(buf)), ntohs(cliaddr.sin_port));
}
}
void CreateUdpSocket()
{
sprintf(bufip,"%d.%d.%d.%d",x1,x2,x3,x4);
Multicastip = bufip;
udp_server.sin_family=AF_INET;
udp_server.sin_addr.s_addr=inet_addr(Multicastip);
udp_server.sin_port=htons(px);
//getSharedMem();
udp_socket_fd= socket(AF_INET,SOCK_DGRAM,0);
if (udp_socket_fd<0) {
perror("opening datagram socket");
exit(-1);
}
reusePort(udp_socket_fd);
if ( bind( udp_socket_fd, (SA *) &udp_server, sizeof(udp_server) ) < 0 ) {
close(udp_socket_fd);
perror("binding name to datagram socket");
exit(-1);
}
joinGroup(udp_socket_fd, Multicastip);
}
int main(int argc, char* argv[])
{
struct sockaddr_in client;
//Validate input
if (argc != 2)
{
cout << "Usage: panserver <portnumber>" << endl;
return -1;
}
// initialize shared memory
initSharedMem();
// Initialize the ports
panel.server.sin_port = htons(atoi(argv[1]));
audience.server.sin_port = htons(atoi(argv[1])+1);
/** Create socket on which to send and receive */
if ( panel.CreatSocket() < 0 ) // create panel socket
return -1;
if ( audience.CreatSocket() < 0 ) // create panel socket
return -1;
reusePort(panel.socket_s); //reuse the binding port when execute program
if ( panel.BindConnection() < 0 ) // Check for binding errors
return -1;
reusePort(audience.socket_s);//reuse the binding port when execute program
if ( audience.BindConnection() < 0 ) // Check for binding errors
return -1;
/** get panel port information and prints it out */
if ( panel.GetSocketName() ) // check socket name validity
return -1;
/** get audience port information and prints it out */
if ( audience.GetSocketName() ) // check socket name validity
return -1;
/** accept TCP connections from clients and fork a process to serve each */
listen(panel.socket_s,10);
listen(audience.socket_s,10);
for(;;){
audience_pid = fork();
/* This is the audience server */
if ( audience_pid == 0) {
signal (SIGQUIT, SIG_IGN);
signal (SIGINT, SIG_IGN);
signal (SIGTSTP,SIG_IGN);
signal (SIGTERM,SIG_IGN);
cout << "Forked AUDIENCE Server, PID=" << getpid() << endl;
ServAudience(audience, client);
}
else
{
//This is to handle the quit function
if (signal(SIGQUIT, CloseMeeting) == SIG_ERR) {
fprintf(stderr, "cannot set handler for SIGQUIT\n");
}
//list people in the room
if (signal(SIGINT, inthandle) == SIG_ERR) {
fprintf(stderr, "cannot set handler for SIGINT\n");
}
//Handle dead signal
if (signal(SIGTERM, SomeoneIsLeaving) == SIG_ERR) {
fprintf(stderr, "cannot set handler for SIGTERM\n");
}
//Handle ctrl+Z
if (signal(SIGTSTP, AllowQA) == SIG_ERR) {
fprintf(stderr, "cannot set handler for SIGTSTP\n");
}
cout << "AUDIENCE server started at port: (" << ntohs(audience.server.sin_port) << ")" << endl;
cout << "PANELIST server started at port: (" << ntohs(panel.server.sin_port) << ")" << endl;
ServPanelist(panel, client);
}
wait(NULL);
}
}
main(int argc, char *argv[])
{
//checking the arguments
if (argc != 4 || argc == 2 )
{
printf("Usage: ChatClient <shost> <sport> <u/m>\n");
printf("e.g.: ChatClient atria 10123 u \n");
exit(1);
}
if ( (hp = gethostbyname(argv[1])) == NULL ) {
addr.sin_addr.s_addr = inet_addr(argv[1]);
if ((hp = gethostbyaddr((char *) &addr.sin_addr.s_addr,
sizeof(addr.sin_addr.s_addr),AF_INET)) == NULL) {
fprintf(stderr, "Can't find host %s\n", argv[1]);
exit(-1);
}
}
printf("\n>> UMChatServer :\t %s\n", hp->h_name);
bcopy ( hp->h_addr, &(server.sin_addr), hp->h_length);
printf(">> UMChatServer IP:\t %s \n", inet_ntoa(server.sin_addr));
server.sin_family = AF_INET;
server.sin_port = htons(atoi(argv[2]));
sd = socket (AF_INET,SOCK_STREAM,0);
if ( connect(sd, (SA *) &server, sizeof(server)) < 0 ) {
close(sd);
perror("connecting to server socket");
exit(0);
}
length = sizeof(client);
if ( getsockname (sd, (SA *)&client,&length) ) {
perror("getting socket name");
exit(0);
}
TCPPort = ntohs(client.sin_port);
userName=getlogin();
if(strcmp(argv[3],"m" )== 0)
{
//send logic
char octet='0';
sprintf(buf, "%c", octet);
sprintf(userBuf, "%s", userName);
if (send(sd,userBuf, sizeof(userBuf), 0) <0 )
perror("sending user name");
usleep(1000);
if (send(sd,buf , sizeof(buf), 0) <0 )
perror("sending MIP message");
}
if(strcmp(argv[3],"u" )== 0)
{
//send logic
char octet='1';
sprintf(buf, "%c", octet);
sprintf(userBuf, "%s", userName);
if (send(sd,userBuf, sizeof(userBuf), 0) <0 )
perror("sending user name");
usleep(1000);
if (send(sd,buf , sizeof(buf), 0) <0 )
perror("sending MIP message");
}
printf(">> ChatClient TCP Port:\t %d\n", TCPPort);
//multicast
if(strcmp(argv[3],"m" )== 0)
{
if( (rc=recv(sd, MIP, sizeof(MIP), 0)) < 0){
perror("receiving MIP message");
exit(-1);
}
if (rc > 0){
MIP[rc]='\0';
printf(">> MCAST IP:\t %s", MIP);
}
if( (rc=recv(sd, MPort, sizeof(MPort), 0)) < 0){
perror("receiving MPort message");
exit(-1);
}
if (rc > 0){
MPort[rc]='\0';
printf(">> MCAST Port:\t %s\n", MPort);
}
if( (rc=recv(sd, listNumber, sizeof(listNumber), 0)) < 0){
perror("receiving list message");
exit(-1);
}
if (rc > 0){
listNumber[rc]='\0';
printf(">> LIST Code:\t %s\n", listNumber);
}
if( (rc=recv(sd, exitNumber, sizeof(exitNumber), 0)) < 0){
perror("receiving exit message");
exit(-1);
}
if (rc > 0){
exitNumber[rc]='\0';
printf(">> END Code:\t %s\n", exitNumber);
}
//multicast
MulticastIPAddress = MIP;
UDPPort = htons(atoi( MPort ) );
LocalHostR.sin_family = AF_INET;
LocalHostR.sin_port = UDPPort;
LocalHostR.sin_addr.s_addr = htonl(INADDR_ANY);
if ((UDPsocketR = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
printf("can't create UDP socket R: \n");
exit(-1);
}
reusePort(UDPsocketR);
if (bind(UDPsocketR, (SA *) & LocalHostR, sizeof(LocalHostR)) < 0) {
printf("error in bind R\n");
exit(-1);
}
LocalHostS.sin_family = AF_INET;
LocalHostS.sin_port = htons(TCPPort);
LocalHostS.sin_addr.s_addr = htonl(INADDR_ANY);
if ((UDPsocketS = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
printf("can't create UDP socket S: \n");
exit(-1);
}
if (bind(UDPsocketS, (SA *) & LocalHostS, sizeof(LocalHostS)) < 0) {
printf("error in bind S\n");
exit(-1);
}
TimeToLive = 2;
setTTLvalue(UDPsocketR, &TimeToLive);
loop = 1; /* enable loopback */
setLoopback(UDPsocketR, loop);
joinGroup(UDPsocketR, MIP);
signal( SIGQUIT, QUIThandler );
if (fork() == 0)
sendMessage(0, UDPsocketS);
getMessage(UDPsocketR, 1);
}
//unicast
if(strcmp(argv[3],"u" )== 0)
{
if( (rc=recv(sd, MPort, sizeof(MPort), 0)) < 0){
perror("receiving MPort message");
exit(-1);
}
if (rc > 0){
MPort[rc]='\0';
printf(">> MCAST Port:\t %s\n", MPort);
}
if( (rc=recv(sd, listNumber, sizeof(listNumber), 0)) < 0){
perror("receiving list message");
exit(-1);
}
if (rc > 0){
listNumber[rc]='\0';
printf(">> LIST Code:\t %s\n", listNumber);
}
if( (rc=recv(sd, exitNumber, sizeof(exitNumber), 0)) < 0){
perror("receiving exit message");
exit(-1);
}
if (rc > 0){
exitNumber[rc]='\0';
printf(">> END Code:\t %s\n", exitNumber);
}
//creates udp socket
UDPPort = htons(atoi( MPort ) );
LocalHostS.sin_family = AF_INET;
LocalHostS.sin_port =UDPPort;
LocalHostS.sin_addr.s_addr = htonl(INADDR_ANY);
if ((UDPsocketS = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
printf("can't create UDP socket S: \n");
exit(-1);
}
if (bind(UDPsocketS, (SA *) & LocalHostS, sizeof(LocalHostS)) < 0) {
printf("error in bind S\n");
exit(-1);
}
if (fork() == 0)
sendMessage(0, UDPsocketS);
getMessage(UDPsocketS, 1);
}
}
main(int argc, char *argv[])
{
FD_SET(0, &full_fd);
if (argc != 4) {
printf("Usage: ChatClient <host> <port> <m|u|s>\n");
printf("e.g.: ChatClient atria 10123 u \n");
exit(1);
}
if ((username = getlogin()) == NULL) perror("Who are you?\n");
if ( (hp = gethostbyname(argv[1])) == NULL ) {
addr.sin_addr.s_addr = inet_addr(argv[1]);
if ((hp = gethostbyaddr((char *) &addr.sin_addr.s_addr,
sizeof(addr.sin_addr.s_addr),AF_INET)) == NULL) {
fprintf(stderr, "Can't find host %s\n", argv[1]);
exit(-1);
}
}
printf("\n UMChatServer --> %s\n", hp->h_name);
bcopy ( hp->h_addr, &(TCPserver.sin_addr), hp->h_length);
bcopy ( hp->h_addr, &(UDPserver.sin_addr), hp->h_length);
bcopy ( hp->h_addr, &(SCTP_Qserver.sin_addr), hp->h_length);
printf(" UMChatServer IP: %s \n", inet_ntoa(TCPserver.sin_addr));
SCTP_Qserver.sin_family = AF_INET;
TCPserver.sin_family = AF_INET;
UDPserver.sin_family = AF_INET;
TCPserver.sin_port = htons(atoi(argv[2]));
if (strcmp(argv[3], "s") == 0) TYPE=S;
if (strcmp(argv[3], "m") == 0) TYPE=M;
if (strcmp(argv[3], "u") == 0) TYPE=U;
if (TYPE == S)
{
SCTPsocket = socket (AF_INET,SOCK_STREAM,IPPROTO_SCTP);
if ( connect(SCTPsocket, (SA *) &TCPserver, sizeof(TCPserver)) < 0 ) {
close(SCTPsocket);
perror("connecting to UMChatServer socket");
exit(0);
}
if ( send(SCTPsocket, username, strlen(username), 0) < 0)
perror("send username message");
length = sizeof(client);
if ( getsockname (SCTPsocket, (SA *)&client,&length) ) {
perror("getting socket name");
exit(0);
}
SCTPPort = ntohs(client.sin_port);
}
else
{
TCP_socket = socket (AF_INET,SOCK_STREAM,0);
if ( connect(TCP_socket, (SA *) &TCPserver, sizeof(TCPserver)) < 0 ) {
close(TCP_socket);
perror("connecting to UMChatServer socket.....");
exit(0);
}
if ( send(TCP_socket, username, strlen(username), 0) < 0)
perror("send username message");
length = sizeof(client);
if ( getsockname (TCP_socket, (SA *)&client,&length) ) {
perror("getting socket name");
exit(0);
}
TCPPort = ntohs(client.sin_port);
}
if (TYPE == M)
{
if ( send(TCP_socket, MChat, strlen(MChat), 0) < 0)
perror("send MChat message");
if( (rc=recv(TCP_socket, MIP, sizeof(MIP), 0)) < 0)
perror("receiving MIP message");
if (rc > 0)
{
MIP[rc]='\0';
printf("THE MCAST IP --> %s", MIP);
}
}
if (TYPE == U)
{
if ( send(TCP_socket, UChat, strlen(UChat), 0) < 0)
perror("send UChat message");
}
if (TYPE == S)
{
if( (rc=recv(SCTPsocket, MPort, sizeof(MPort), 0)) < 0)
perror("receiving MPort message 01");
if (rc > 0)
{
MPort[rc]='\0';
printf(" THE MCAST Port --> %s\n", MPort);
}
strcat(record,inet_ntoa(SCTP_Qserver.sin_addr));
strcat(record,":");
strcat(record,MPort);
sprintf(ServerAddr, "[%s] ", record);
UDPPort = htons(atoi( MPort ) );
SCTP_Qserver.sin_port = UDPPort;
if( (rc=recv(SCTPsocket, RandomCODE1, sizeof(RandomCODE1), 0)) < 0)
perror("receiving RandomCODE1 message");
if (rc > 0){
RandomCODE1[rc]='\0';
printf(" THE LIST Code --> %s\n", RandomCODE1);
}
if( (rc=recv(SCTPsocket, RandomCODE2, sizeof(RandomCODE2), 0)) < 0)
perror("receiving RandomCODE2 message");
if (rc > 0){
RandomCODE2[rc]='\0';
printf("THE END Code --> %s\n\n", RandomCODE2);
}
}
else
{
if( (rc=recv(TCP_socket, MPort, sizeof(MPort), 0)) < 0)
perror("receiving MPort message");
if (rc > 0)
{
MPort[rc]='\0';
printf(" THE MCAST Port --> %s\n", MPort);
}
strcat(record,inet_ntoa(UDPserver.sin_addr));
strcat(record,":");
strcat(record,MPort);
sprintf(ServerAddr, "[%s] ", record);
UDPPort = htons(atoi( MPort ) );
UDPserver.sin_port = UDPPort;
if( (rc=recv(TCP_socket, RandomCODE1, sizeof(RandomCODE1), 0)) < 0)
perror("receiving RandomCODE1 message");
if (rc > 0){
RandomCODE1[rc]='\0';
printf(" THE LIST Code --> %s\n", RandomCODE1);
}
if( (rc=recv(TCP_socket, RandomCODE2, sizeof(RandomCODE2), 0)) < 0)
perror("receiving RandomCODE2 message");
if (rc > 0){
RandomCODE2[rc]='\0';
printf(" THE END Code --> %s\n\n", RandomCODE2);
}
}
LocalHostUS.sin_family = AF_INET;
LocalHostUS.sin_port = htons(TCPPort);
LocalHostUS.sin_addr.s_addr = htonl(INADDR_ANY);
LocalHostSCTP_Q.sin_family = AF_INET;
LocalHostSCTP_Q.sin_port = htons(client.sin_port)+1;
LocalHostSCTP_Q.sin_addr.s_addr = htonl(INADDR_ANY);
MulticastIPAddress = MIP;
UDPPort = htons(atoi( MPort ) );
LocalHostUR.sin_family = AF_INET;
LocalHostUR.sin_port = UDPPort;
LocalHostUR.sin_addr.s_addr = htonl(INADDR_ANY);
GroupAddress.sin_family = AF_INET;
GroupAddress.sin_port = UDPPort;
GroupAddress.sin_addr.s_addr = inet_addr(MulticastIPAddress);
if ((UDPsocket = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
perror("can't create UDP socket S: \n");
if (bind(UDPsocket, (SA *) & LocalHostUS, sizeof(LocalHostUS)) < 0) printf("error in bind UDP S\n");
FD_SET(UDPsocket, &full_fd);
if ((SCTP_Qsocket = socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP)) < 0)
perror("can't create SCTP-Q socket S: \n");
reusePort(SCTP_Qsocket);
if (bind(SCTP_Qsocket, (SA *) & LocalHostSCTP_Q, sizeof(LocalHostSCTP_Q)) < 0) printf("error in bind SCTP_Q S\n");
FD_SET(SCTP_Qsocket, &full_fd);
if (TYPE == M) {
if ((MCASTsocket = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
perror("can't create UDP MCASTsocket R: \n");
reusePort(MCASTsocket);
if (bind(MCASTsocket, (SA *) & LocalHostUR, sizeof(LocalHostUR)) < 0)
perror("error in bind R\n");
joinGroup(MCASTsocket, MIP);
FD_SET(MCASTsocket, &full_fd);
}
TimeToLive = 2;
setTTLvalue(UDPsocket, &TimeToLive);
loop = 1;
setLoopback(UDPsocket, loop);
signal( SIGQUIT, QUIThandler );
signal( SIGINT, INThandler);
char recvBuf[MAXLINE];
int bytes = 0;
if (TYPE == U) {
if (sendto(UDPsocket,EchoTest,strlen(EchoTest),0,(SA *)&UDPserver,sizeof(UDPserver)) < 0)
perror("error in sendto EchoTest UDPsocket \n");
}
if (TYPE == S) {
char EchoTest[100];
strcpy(EchoTest,"WELCOME, New SCTP: ");
strcat(EchoTest,username);
strcat(EchoTest,"\n");
if (sendto(SCTP_Qsocket,EchoTest,strlen(EchoTest),0,(SA *)&SCTP_Qserver,sizeof(SCTP_Qserver)) < 0)
perror("error in send to EchoTest SCTP_Qsocket \n");
}
if (TYPE == M) {
if (sendto(UDPsocket,EchoTest,strlen(EchoTest),0,(SA *)&UDPserver,sizeof(UDPserver)) < 0)
perror("error in send to EchoTest UDPsocket \n");
if (sendto(MCASTsocket,EchoTest,strlen(EchoTest),0,(SA *)&UDPserver,sizeof(UDPserver)) < 0)
perror("error in send to EchoTest MCASTsocket \n");
if ( (bytes = recvfrom(UDPsocket, recvBuf, MAXLINE, 0, (SA *) &from, &fromlen) ) < 0)
perror("error in rec from EchoTest UDPsocket \n");
}
sleep(1);
selectHandle();
}
