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/*
This program demonstrates very basic TCP usage of the ENSOCKET plugin
*/
#include <stdio.h>
#include "cssysdef.h"
#include "csutil/scf.h"
#include "csutil/cfgfile.h"
#include "inetwork/driver2.h"
#include "inetwork/socket2.h"
#include "inetwork/sockerr.h"
CS_IMPLEMENT_APPLICATION
iNetworkDriver2 *driver = NULL;
iNetworkSocket2 *server = NULL;
iNetworkSocket2 *client = NULL;
void usage ( char *arg )
{
printf("Usage: %s [server/client] [hostname*] [port]\n",arg);
printf(" * - specify hostname only if you are using client mode.\n");
}
int main(int argc, char *argv[])
{
int role = -1; // 0 - server 1 - client
char hostname[65]; // RFCs say that DNS hostnames are not longer than 64 bytes...
int port = 0;
char buffer[1024];
if (argc < 3)
{
usage(argv[0]);
return 0;
}
if (strcasecmp(argv[1],"server") == 0)
{
role = 0;
}
if (strcasecmp(argv[1],"client") == 0)
{
role = 1;
}
if (role == -1)
{
printf("you must specify client or server\n");
usage(argv[0]);
return 0;
}
if (role == 0)
{
port = atoi(argv[2]);
} else {
if (argc < 4) {
printf("please specify a hostname and port\n");
usage(argv[0]);
return 0;
}
strncpy(hostname,argv[2],64); // so we dont fill our buffer
port = atoi(argv[3]);
}
if (port == 0)
{
printf("you must specify a port\n");
usage(argv[0]);
return 0;
}
if (role == 0)
{
printf("server running tcp on port %d.\n",port);
} else {
printf("server running udp on port %d.\n",port);
}
// This method requires you register dlls with scfreg (or manually) in scf.cfg
csConfigFile config ("scf.cfg");
scfInitialize (&config);
driver = SCF_CREATE_INSTANCE("crystalspace.network.driver.sockets2", iNetworkDriver2);
if (!driver)
{
printf("Unable to load the network plugin.\n");
return 0;
}
if (role == 0)
{
// act as a server
server = driver->CreateSocket(CS_NET_SOCKET_TYPE_TCP);
if (server == NULL)
{
printf("unable to create socket\n");
return 0;
}
server->WaitForConnection(0,port,5);
if (server->LastError() != CS_NET_SOCKET_NOERROR)
{
printf("unable to bind to port %d\n",port);
return 0;
}
printf("waiting for connection on port %d...",port);
client = server->Accept();
if (client == NULL)
{
printf("unable to accept connection\n");
return 0;
}
printf("client connection from %s\n",client->RemoteName());
client->Recv(buffer,1024);
printf("I got '%s' from the client.\n",buffer);
client->Close();
server->DecRef();
return 0;
} else {
// act as a client
client = driver->CreateSocket(CS_NET_SOCKET_TYPE_TCP);
if (client == NULL)
{
printf("unable to create socket\n");
return 0;
}
printf("connecting to %s port %d...",hostname,port);
client->Connect(hostname,port);
if (client->IsConnected() == FALSE)
{
printf("unable to resolve %s\n",hostname);
return 0;
}
sprintf(buffer,"CrystalSpace Network Tutorial Using ENSOCKET Plugin!");
client->Send(buffer,strlen(buffer));
client->Close();
client->DecRef();
}
driver->DecRef();
return 0;
}
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