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标题: C语言经典算法之底层编程：winsock2 [打印本页]

作者: 苹果也疯狂 时间: 2014-5-9 17:10 标题: C语言经典算法之底层编程：winsock2

#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "winsock2.h"
#include "ctype.h"
#include "time.h"
#pragma comment(lib,"WSOCK32")
#define SERVER_PORT 5000
#define DefaultHTML "login.htm"
SOCKET sockfd;
char *r200 = "HTTP/1.0 200\n";
char *r302 = "HTTP/1.0 302Found\n";
char *notfound ="HTTP/1.0 404 NotFound\n";
char *header = "Content-type:text/html\n";
char *end = "\n";
char *version="0.1.0";
void WriteRedirect(SOCKET connfd,char *loc)
{
time_t now;
char Buffer[1025];
now=time(NULL);
send(connfd,r302,strlen(r302),0);
sprintf(Buffer,"Location: %s\n",loc);
send(connfd,Buffer,strlen(Buffer),0);
sprintf(Buffer,"Server: Web Chat Server %s\n",version);
send(connfd,Buffer,strlen(Buffer),0);
sprintf(Buffer,"Date: %s",ctime(&now)); /* ctime 输出的时候自动在行尾输出\n*/
sprintf(Buffer,"Expires: %s",ctime(&now)); /* ctime 输出的时候自动在行尾输出\n*/
sprintf(Buffer,"Last-Modified: %s",ctime(&now)); /*ctime 输出的时候自动在行尾输出\n */
send(connfd,Buffer,strlen(Buffer),0);

sprintf(Buffer,"Cache-Control: no-cache\nPragma:no-cache\n");
send(connfd,Buffer,strlen(Buffer),0);
send(connfd,header,strlen(header),0);
send(connfd,end,strlen(end),0);
}
void main()
{
char Server_name[128];
WSADATA wsaData;
struct hostent *hp;
struct sockaddr_in addrServer;
SOCKADDR addrtemp;
int nlen = sizeof(addrtemp);
SOCKET connfd;
char *data="HTTP/1.1 200 OK\r\nDate: Tue, 21 Sep 2001 02:19:57GMT\r\nServer: iis5\r\nContent-Type: text/html\r\n\r\n<html><head><title>UntitledDocument</title><meta http-equiv='Content-Type' content='text/html;charset=gb2312'></head><body bgcolor=#FFFFFFtext=#000000><center><br><br>这是一个测试</body></html>";
WSAStartup(0x202,&wsaData); //初始化Winsock资源
sockfd = socket(AF_INET,SOCK_STREAM,0); //建立套接字
//AF_INET:TCP/IP地址族
//SOCK_STREAM:数据流方式
gethostname(Server_name,128); //获取机器的名称
hp = gethostbyname(Server_name); //通过机器名称获取主机的信息
//初始化sockaddr_in结构
//包括IP地址sin_addr、协议族sinfamily和使用的端口sin_port
memset(&addrServer,0,sizeof(addrServer));
memcpy(&(addrServer.sin_addr),hp->h_addr,hp->h_length);
addrServer.sin_family = AF_INET;
addrServer.sin_port = htons((unsigned short)SERVER_PORT);
if(SOCKET_ERROR ==bind(sockfd,(LPSOCKADDR)&addrServer,sizeof(addrServer)))
{
printf("Bind Socket Error ! \r\n");
return;
}
else
printf("Bind Socket Success . ..\r\n");
listen(sockfd,5); //在socketServer上监听连接信息
printf("Wait for a connection . . .\r\n");
for(;;)
{
ZeroMemory((void*)&addrtemp,sizeof(addrtemp));
  nlen = sizeof(addrtemp);
  connfd =accept(sockfd,&addrtemp,&nlen); //接受连接请求并生成专用的接收socket
WriteRedirect(connfd,"chkusrpw.htm");
  closesocket(connfd);
}
closesocket(sockfd);
WSACleanup();
return;
}

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