/* Single-threaded command line client. */
/* WINDOWS SOCKETS VERSION. */
/* Reads a sequence of commands to send to a server process */
/* over a socket connection. Wait for and display response. */
#include "Everything.h"
#include "ClientServer.h"/* Defines request and response records. */
static BOOL SendRequestMessage (REQUEST *, SOCKET);
static BOOL ReceiveResponseMessage (RESPONSE *, SOCKET);
struct sockaddr_in clientSAddr;/* Client Socket address structure */
int main (int argc, LPSTR argv[])
{
SOCKET clientSock = INVALID_SOCKET;
REQUEST request;/* See clntcrvr.h */
RESPONSE response;/* See clntcrvr.h */
WSADATA WSStartData; /* Socket library data structure */
BOOL quit = FALSE;
DWORD conVal;
/* Initialize the WS library. Ver 2.0 */
WSAStartup (MAKEWORD (2, 0), &WSStartData);
/* Connect to the server */
/* Follow the standard client socket/connect sequence */
clientSock = socket(AF_INET, SOCK_STREAM, 0);
memset (&clientSAddr, 0, sizeof(clientSAddr));
clientSAddr.sin_family = AF_INET;
if (argc >= 2)
clientSAddr.sin_addr.s_addr = inet_addr (argv[1]);
else
clientSAddr.sin_addr.s_addr = inet_addr ("127.0.0.1");
clientSAddr.sin_port = htons(SERVER_PORT);
conVal = connect (clientSock, (struct sockaddr *)&clientSAddr,
sizeof(clientSAddr));
/* Main loop to prompt user, send request, receive response */
while (!quit) {
_tprintf (_T("%s"), _T("\nEnter Command: "));
fgets (request.record, MAX_RQRS_LEN, stdin);
/* Get rid of the new line at the end */
request.record[strlen(request.record)-1] = '\0';
if (strcmp (request.record, "$Quit") == 0) quit = TRUE;
SendRequestMessage (&request, clientSock);
if (!quit) ReceiveResponseMessage (&response, clientSock);
}
shutdown (clientSock, SD_BOTH); /* Disallow sends and receives */
closesocket (clientSock);
WSACleanup();
_tprintf (_T("\n****Leaving client\n"));
return 0;
}
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