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Highly Adaptive Penguin
Join Date: May 2005
Location: United States
Posts: 251
Rep Power: 4 
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problem with network application
whenever i make a network program it always says "failed recv()" or "failed send()", and i can never get it to work. any suggestions?
here's the server:
#include<winsock.h>
#include<iostream.h>
#include<string.h>
#pragma comment(lib,"wsock32.lib")
SOCKET server;
SOCKET client;
int main()
{
WORD sockversion;
WSADATA wsaData;
int net;
sockversion=MAKEWORD(1,1);
WSAStartup(sockversion,&wsaData);
server=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
if(server==INVALID_SOCKET)
{
cout<<"invalid socket\n";
WSACleanup();
}
sockaddr_in sin;
sin.sin_family=PF_INET;
sin.sin_port=htons(8888);
sin.sin_addr.s_addr=INADDR_ANY;
net=bind(server,(LPSOCKADDR)&sin,sizeof(sin));
if(net==SOCKET_ERROR)
{
cout<<"failed bind()";
WSACleanup();
}
net=listen(server,4);
if(net==SOCKET_ERROR)
{
cout<<"failed listen\n";
WSACleanup();
}
client=accept(server,NULL,NULL);
if(client==INVALID_SOCKET)
{
cout<<"failed accept\n";
WSACleanup();
}
while(true);
{
char rdata[5000];
char data[5000];
net=recv(client,rdata,strlen(rdata),0);
if(net==SOCKET_ERROR)
{
cout<<"failed recv()\n";
WSACleanup();
}
cout<<"===================================\n";
cout<<"\n";
cout<<">>"<<rdata<<'\n';
cout<<"<you said>"<<data<<'\n';
cout<<"\n";
cout<<"===================================\n";
cout<<">> ";
cin.get(data,4999);
cin.ignore(80,'\n');
net=send(server,data,strlen(data),0);
if(net==SOCKET_ERROR)
{
cout<<"failed send\n";
WSACleanup();
}
}
WSACleanup();
closesocket(server);
closesocket(client);
return 0;
}
here's the client
#include<winsock.h>
#include<iostream.h>
#include<string.h>
#pragma comment(lib,"wsock32.lib")
SOCKET server;
SOCKET client;
int main()
{
WORD sockversion;
WSADATA wsaData;
int net;
sockversion=MAKEWORD(1,1);
WSAStartup(sockversion,&wsaData);
client=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
if(client==INVALID_SOCKET)
{
cout<<"invalid socket\n";
WSACleanup();
}
sockaddr_in sin;
sin.sin_familt=PF_INET;
sin.sin_port=htons(8888);
sin.sin_addr.s_addr=inet_addr("127.0.0.1");
net=connect(client,(LPSOCKADDR)&sin,sizeof(sin));
if(net==SOCKET_ERROR)
{
cout<<"failed to connect to server\n";
WSACleanup();
}
while(true);
{
char rdata[5000];
char data[5000];
net=send(server,data,strlen(data),0);
if(net==SOCKET_ERROR)
{
cout<<"failed send\n";
WSACleanup();
}
cout<<"===================================\n";
cout<<"\n";
cout<<">>"<<rdata<<'\n';
cout<<"<you said>"<<data<<'\n';
cout<<"\n";
cout<<"===================================\n";
cout<<">> ";
cin.get(data,4999);
cin.ignore(80,'\n');
net=recv(client,rdata,strlen(rdata),0);
if(net==SOCKET_ERROR)
{
cout<<"failed recv()\n";
WSACleanup();
}
}
WSACleanup();
closesocket(server);
closesocket(client);
return 0;
}
thanks in advance
Last edited by Mjordan2nd; Jul 1st, 2005 at 8:53 PM.
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