UDP Socket编程 C/C++实现 (Windows Platform SDK)
2015-04-04 11:59
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挺无聊一小程序,俩SB一人说一句,据说聊天程序最好用UDP写。 Server:
[csharp] view
plaincopy
#pragma comment (lib,"ws2_32.lib")
#include <Winsock2.h>
#include <stdio.h>
void main()
{
//版本协商
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
return;
}
/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return;
}
/* The WinSock DLL is acceptable. Proceed. */
//创建数据报套接字
SOCKET svr = socket(AF_INET,SOCK_DGRAM,0);
//创建本地地址信息
SOCKADDR_IN addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(6000);
addr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
int len = sizeof(sockaddr);
bind(svr,(sockaddr*)&addr,len);
//创建客户端地址对象
SOCKADDR_IN addrClient;
char recvBuf[128];
char sendBuf[128];
char tempBuf[256];
while(true)
{
//接收数据
recvfrom(svr,recvBuf,128,0,(sockaddr*)&addrClient,&len);
char* ipClient = inet_ntoa(addrClient.sin_addr);
sprintf(tempBuf,"%s said: %s/n",ipClient,recvBuf);
printf("%s",tempBuf);
gets(sendBuf);
//发送数据
sendto(svr,sendBuf,strlen(sendBuf)+1,0,(sockaddr*)&addrClient,len);
}
closesocket(svr);
WSACleanup();
}
Client:
[csharp] view
plaincopy
#pragma comment (lib,"ws2_32.lib")
#include <Winsock2.h>
#include <stdio.h>
void main()
{
//版本协商
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
return;
}
/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return;
}
/* The WinSock DLL is acceptable. Proceed. */
//创建服务器套接字
SOCKET Svr = socket(AF_INET,SOCK_DGRAM,0);
//创建地址
SOCKADDR_IN addrSvr;
addrSvr.sin_family = AF_INET;
addrSvr.sin_port = htons(6000);
addrSvr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
char recvBuf[128];
char sendBuf[128];
int len = sizeof(sockaddr);
while(true)
{
gets(sendBuf);
//发送数据
sendto(Svr,sendBuf,strlen(sendBuf)+1,0,(sockaddr*)&addrSvr,len);
//接收数据
recvfrom(Svr,recvBuf,128,0,(sockaddr*)&addrSvr,&len);
char* ipSvr = inet_ntoa(addrSvr.sin_addr);
printf("%s said: %s/n",ipSvr,recvBuf);
}
closesocket(Svr);
WSACleanup();
}
[csharp] view
plaincopy
#pragma comment (lib,"ws2_32.lib")
#include <Winsock2.h>
#include <stdio.h>
void main()
{
//版本协商
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
return;
}
/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return;
}
/* The WinSock DLL is acceptable. Proceed. */
//创建数据报套接字
SOCKET svr = socket(AF_INET,SOCK_DGRAM,0);
//创建本地地址信息
SOCKADDR_IN addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(6000);
addr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
int len = sizeof(sockaddr);
bind(svr,(sockaddr*)&addr,len);
//创建客户端地址对象
SOCKADDR_IN addrClient;
char recvBuf[128];
char sendBuf[128];
char tempBuf[256];
while(true)
{
//接收数据
recvfrom(svr,recvBuf,128,0,(sockaddr*)&addrClient,&len);
char* ipClient = inet_ntoa(addrClient.sin_addr);
sprintf(tempBuf,"%s said: %s/n",ipClient,recvBuf);
printf("%s",tempBuf);
gets(sendBuf);
//发送数据
sendto(svr,sendBuf,strlen(sendBuf)+1,0,(sockaddr*)&addrClient,len);
}
closesocket(svr);
WSACleanup();
}
Client:
[csharp] view
plaincopy
#pragma comment (lib,"ws2_32.lib")
#include <Winsock2.h>
#include <stdio.h>
void main()
{
//版本协商
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
return;
}
/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return;
}
/* The WinSock DLL is acceptable. Proceed. */
//创建服务器套接字
SOCKET Svr = socket(AF_INET,SOCK_DGRAM,0);
//创建地址
SOCKADDR_IN addrSvr;
addrSvr.sin_family = AF_INET;
addrSvr.sin_port = htons(6000);
addrSvr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
char recvBuf[128];
char sendBuf[128];
int len = sizeof(sockaddr);
while(true)
{
gets(sendBuf);
//发送数据
sendto(Svr,sendBuf,strlen(sendBuf)+1,0,(sockaddr*)&addrSvr,len);
//接收数据
recvfrom(Svr,recvBuf,128,0,(sockaddr*)&addrSvr,&len);
char* ipSvr = inet_ntoa(addrSvr.sin_addr);
printf("%s said: %s/n",ipSvr,recvBuf);
}
closesocket(Svr);
WSACleanup();
}
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