int main(int argc, char** argv)
{
int serverSocket; //Socket descriptor for server
int clientSocket; //Socket descriptor for client
struct sockaddr_in echoServerAddr; //local address
struct sockaddr_in echoClientAddr; //client address
unsigned short echoServerPort; //server port
unsigned int clientLen; //length of client address data structure
// if(argc != 2){
// fprintf(stderr, "Usage %s <Server Port>\n", argv[0]);
// exit(1);
// }
echoServerPort = PORT;
//create socket for incoming connections
if((serverSocket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0){
dieWithError("socket() failed");
}
//construct local address structure
memset(&echoServerAddr, 0, sizeof(echoServerAddr)); //zero out structure
echoServerAddr.sin_family = AF_INET; //internet address family
echoServerAddr.sin_addr.s_addr = htonl(INADDR_ANY); //any incoming interface
echoServerAddr.sin_port = htons(echoServerPort); //local port
//bind to the local address
if(bind(serverSocket, (struct sockaddr*)&echoServerAddr, sizeof(echoServerAddr)) < 0){
dieWithError("bind() failed");
}
//mark the socket so it will listen for incoming connections
if(listen(serverSocket, MAXPENDING) < 0){
dieWithError("listen() failed");
}
//set the size of the in-out parameter
clientLen = sizeof(echoClientAddr);
//wait for client to connect
if((clientSocket = accept(serverSocket, (struct sockaddr*)&echoClientAddr, &clientLen)) < 0){
dieWithError("accept() failed");
}
//clientSocket is connected to a client
printf("Handling client %s\n", inet_ntoa(echoClientAddr.sin_addr));
handleTCPClient(clientSocket);
}
int main( int argc, char **argv ) {
typedef enum Boolean { false, true } Boolean;
Boolean finished = false;
char buffer[1024];
in_port_t listenPort;
int serverSock;
static const char *version = "0.0.1";
static const char *phase = "prealpha";
struct sockaddr_in serverAddr;
if (argc != 2) usage(argv[0]);
listenPort = atoi(argv[1]);
printf("tcpserver -- TCP-based protocol development harness (server) v%s-%s\n", version, phase);
printf("Written by [email protected] -- Released under BSD3\n\n");
if ((serverSock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) error("socket()");
memset(&serverAddr, 0, sizeof(serverAddr));
serverAddr.sin_family = AF_INET;
serverAddr.sin_addr.s_addr = htonl(INADDR_ANY);
serverAddr.sin_port = htons(listenPort);
if (bind(serverSock, (struct sockaddr *) &serverAddr, sizeof(serverAddr)) < 0) sysError("bind()");
if (listen(serverSock, _TCPDEV_MAXCONN) < 0) sysError("listen()");
while (!finished) {
struct sockaddr_in clientAddr;
socklen_t clientAddrLength = sizeof(clientAddr);
int clientSock = accept(serverSock, (struct sockaddr *) &clientAddr, &clientAddrLength);
if (clientSock < 0) sysError("accept()");
char clientName[INET_ADDRSTRLEN];
if (inet_ntop(AF_INET, &clientAddr.sin_addr.s_addr, clientName, sizeof(clientName)) != NULL) {
printf("[+] inbound client: %s:%d\n", clientName, ntohs(clientAddr.sin_port));
} else {
printf("cannot get client address\n");
}
handleTCPClient(clientSock);
}
return 0;
}
