TCP connection fails at recv() function - sockets

Question

I'm a newbie in socket programming.
I'm trying to interface in TCP between server and client by following a certain protocol.
After the connection is established, the communication starts by client sending a certain packet to the server. My program fails at the recv() function at client side.
Let me share you the client side of my code:
iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (iResult != 0)
{
printf("WSAStartup failed with error: %d\n", iResult);
return 1;
}
ZeroMemory(&hints, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
iResult = getaddrinfo(LOCAL_IP, "8081", &hints, &result);
if (iResult != 0)
{
printf("getaddrinfo failed with error: %d\n", iResult);
WSACleanup();
return 1;
}
// Attempt to connect to an address until one succeeds
for (ptr = result; ptr != NULL; ptr = ptr->ai_next)
{
// Create a SOCKET for connecting to server
ConnectSocket = socket(ptr->ai_family, ptr->ai_socktype,
ptr->ai_protocol);
if (ConnectSocket == INVALID_SOCKET)
{
printf("socket failed with error: %ld\n", WSAGetLastError());
WSACleanup();
return 1;
}
// Connect to server.
iResult = connect(ConnectSocket, ptr->ai_addr, (int)ptr->ai_addrlen);
if (iResult == SOCKET_ERROR)
{
closesocket(ConnectSocket);
ConnectSocket = INVALID_SOCKET;
continue;
}
break;
}
MSG_PDDAU_INFO_PACKET* ps8ptr = new MSG_PDDAU_INFO_PACKET;
memset(ps8bufrecv, 0, DEFAULT_BUFLEN);
s32packetlen = sizeof(MSG_PDDAU_INFO_PACKET);
printf("size %d\n", sizeof(MSG_PDDAU_INFO_PACKET));
iResult = recv(ConnectSocket, ps8bufrecv, s32packetlen, 0);
if (iResult == -1)
{
printf("Here !\n");
fprintf(stderr, "recv Error Occurred %s (%d)\n", strerror(errno), errno);
return -1;
}
memcpy(ps8ptr,ps8bufrecv,sizeof(MSG_PDDAU_INFO_PACKET));
And here is the server side of the code:
nErrorStatus = WSAStartup(wVersionRequested, &wsaData);
serv_sock = socket(PF_INET, SOCK_STREAM, 0);
if(serv_sock == -1)
{
printf( "socket() Error..Error --> Code %d ", WSAGetLastError() );
error_handling("socket error");
}
memset(&serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = PF_INET;
serv_addr.sin_addr.s_addr = inet_addr(ip);
serv_addr.sin_port = htons(CLIENT_PORT_NUMBER);
if(bind(serv_sock, (struct sockaddr*) &serv_addr, sizeof(serv_addr)) == -1)
{
printf( "bind() Error..Error --> Code %d ", WSAGetLastError() );
error_handling("bind error");
}
if(listen(serv_sock, 5) == -1)
{
printf( "listen() Error..Error --> Code %d ", WSAGetLastError() );
error_handling("listen error");
}
clnt_addr_size = sizeof(clnt_addr);
clnt_sock = accept(serv_sock, (struct sockaddr*)&clnt_addr, &clnt_addr_size);
if(clnt_sock == -1)
{
printf( "accept() Error..Error --> Code %d ", WSAGetLastError() );
error_handling("accept error");
}
MSG_PDDAU_INFO_PACKET* ps8ptr = new MSG_PDDAU_INFO_PACKET;
ps8ptr->header.msg_id = MSG_PDDAU_INFO_ID;
ps8ptr->header.msg_type = MSG_REQUEST_TYPE;
ps8ptr->time_enable = 0x01;
s32packetlen = sizeof(MSG_PDDAU_INFO_PACKET);
memset(ps8bufsend, 0, DEFAULT_BUFLEN);
memcpy(ps8bufsend,ps8ptr, s32packetlen);
iResult = send(clnt_sock, ps8bufsend, s32packetlen, 0);
if (iResult == -1)
{
fprintf(stderr, "send Error Occurred %s (%d)\n", strerror(errno), errno);
return -1;
}
The code keeps failing at the first recv/send interface after the connection, and the error message looks like below.
Server side:
Time msg id : 5
Time setting failed
Client side:
recv Error Occurred Invalid argument (22)
I don't know what's the correct way to communicate in my case.
It'd be great if anyone can point out my problem here.