int main(int argc, char *argv[])
{
int nListenSock = -1, nLocalSock = -1, nRemoteSock = -1;
pid_t nChild;
if (argc != 2) /* 命令行参数：“proxy1 本地端口” */
{
PrintLog(stdout, "proxy1 LOCALPORT\n");
return 1;
}
/* ---------------------------父进程------------------------------- */
/* ① 创建侦听套接字 */
ASSERT(CreateSock(&nListenSock, atoi(argv[1]), 8) == 0);
PrintLog(stdout, "listen service: service is activated.");
InitServer(); /* ② 进程转后台运行 */
while (1)
{
/* ③ 等待并创建连接套接字 */
if (!VERIFY(AcceptSock(&nLocalSock, nListenSock) == 0))
continue; /* ③ 继续等待 */
VERIFY((nChild = fork()) >= 0); /* ④ 创建子进程 */
if (nChild == 0) break; /* 子进程跳转到子进程代码 */
close(nLocalSock); /* ⑤ 父进程关闭连接套接字 */
}
/* ---------------------------子进程------------------------------- */
close(nListenSock); /* ⑦ 子进程关闭侦听套接字 */
/* 解析HTTP报文头，并与目标服务器建立连接 */
if (HttpConnect(nLocalSock, &nRemoteSock) == 0)
SendReciveServer(nLocalSock, nRemoteSock); /* 通信转发 */
if (nLocalSock >= 0) close(nLocalSock); /* ⑨ 子进程关闭本地端套接字 */
if (nRemoteSock >= 0) close(nRemoteSock);/* ⑨ 子进程关闭目标端套接字 */
}
int main()
{
int nSock, nSock1;
pid_t nChild;
char buf[2048], szAddr[30];
memset(buf, 0, sizeof(buf));
ASSERT(CreateSock(&nSock, 9001, 9) == 0);
while(1)
{
ASSERT(AcceptSock(&nSock1, nSock) == 0);
nChild = fork();
if (nChild == 0)
{
break;
}
close(nSock1);
}
close(nSock);
memset(szAddr, 0, sizeof(szAddr));
LocateRemoteAddr(nSock1, szAddr);
recv(nSock1, buf, sizeof(buf), 0);
PrintLog(stderr, buf);
sprintf(buf, "HTTP/1.1 200 OK\n%s%s%s", szHtml1, szAddr, szHtml2);
send(nSock1, buf, strlen(buf), 0);
PrintLog(stderr, buf);
close(nSock1);
}
int main()
{
int nSock,nSock1;
char buf[2048];
//创建端口号为9001的侦听套接字
VERIFY(CreateSock(&nSock,9001,9) != 0, "Create Listen SOCKET");
//接收客户端连接申请，创建连接套接字nSock1
VERIFY(AcceptSock(&nSock1,nSock) != 0,"Link");
memset(buf,0,sizeof(buf));
//接收客户端发送的TCP数据消息
recv(nSock1,buf,sizeof(buf),0);
fprintf(stderr,buf);
close(nSock); //关闭侦听套接字
close(nSock1); //关闭连接套接字
return 0;
}
