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   skwksk
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http://www.hackerschool.org/HS_Boards/zboard.php?desc=asc&no=2166 [º¹»ç]


#include <winsock2.h>
#include <process.h>
#include <stdio.h>
#include <stdlib.h>

#define BUF 100

HANDLE mutex;
char message[BUF];

void Error(char *msg);
DWORD WINAPI sender(void *Csock);
DWORD WINAPI recver(void *Csock);

int main(int argc, char **argv)
{
        WSADATA wsadata;
        SOCKET sock_client;
        SOCKADDR_IN addr_client;
        HANDLE thread1,thread2;
        DWORD dwthread1,dwthread2;

        if(WSAStartup(MAKEWORD(2,2), &wsadata) != 0)
                Error("WSAStartup Error");

        if((sock_client = socket(AF_INET, SOCK_STREAM,0)) == INVALID_SOCKET){
                WSACleanup();
                Error("socket Error");
        }

        mutex = CreateMutex(NULL,false,NULL);

        memset(&addr_client, 0, sizeof(addr_client));
        addr_client.sin_family = PF_INET;
        addr_client.sin_addr.s_addr = inet_addr(argv[1]);
        addr_client.sin_port = htons(atoi(argv[2]));

        if(connect(sock_client,(SOCKADDR*)&addr_client,sizeof(addr_client))==SOCKET_ERROR){
                WSACleanup();
                Error("connect Error");
        }

        thread1 = (HANDLE)_beginthreadex(NULL, 0, (unsigned int(__stdcall *)(void*))sender, NULL, 0,(unsigned int*) &dwthread1);
        thread2 = (HANDLE)_beginthreadex(NULL, 0, (unsigned int(__stdcall *)(void*))recver, NULL, 0,(unsigned int*) &dwthread2);

        if(thread1==0||thread2==0){
                WSACleanup();
                Error("_beginthreadex Error");
        }

        WSACleanup();
        return 0;
}

DWORD WINAPI sender(void *Csock)
{
        SOCKET sock_client=(SOCKET)Csock;
        while(1){
                WaitForSingleObject(mutex,INFINITE);
                fgets(message,BUF,stdin);
                send(sock_client,message,strlen(message),0);
                ReleaseMutex(mutex);
        }
        closesocket(sock_client);
        return 0;
}

DWORD WINAPI recver(void *Csock)
{
        SOCKET sock_client = (SOCKET)Csock;
        int len;
        
        while(1){
                WaitForSingleObject(mutex,INFINITE);
                len=recv(sock_client,message,BUF-1,0);
                message[len]=0;
                fputs(message,stdout);
                ReleaseMutex(mutex);
        }
        closesocket(sock_client);
        return 0;
}

void Error(char *msg)
{
        fputs(msg,stderr);
        fputc('\0',stderr);
        exit(1);
}
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  Hit : 3625     Date : 2009/10/24 08:39



    
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