vs2010 网络编程练习

// hostconfig.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include "hostconfig.h"#include "winsock2.h"#include <string>#include <Nb30.h>#pragma comment(lib, "ws2_32.lib")#pragma comment(lib,"Netapi32.lib")#ifdef _DEBUG#define new DEBUG_NEW#endif// The one and only application objectCWinApp theApp;using namespace std;void init();void getHostName(char *);void getIP(char*);int getMac();void setIP(string s);char mac[15];int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]){int nRetCode = 0;HMODULE hModule = ::GetModuleHandle(NULL);if (hModule != NULL){// initialize MFC and print and error on failureif (!AfxWinInit(hModule, NULL, ::GetCommandLine(), 0)){// TODO: change error code to suit your needs_tprintf(_T("Fatal Error: MFC initialization failed/n"));nRetCode = 1;}else{// TODO: code your application's behavior here.init();char hostname[128];getHostName(hostname);getIP(hostname);getMac();string newIP;cout<<"请输入新的本地ip"<<endl;cin>>newIP;setIP(newIP);}}else{// TODO: change error code to suit your needs_tprintf(_T("Fatal Error: GetModuleHandle failed/n"));nRetCode = 1;}system("pause");return nRetCode;}void init(){WSADATA wsa;if (WSAStartup(MAKEWORD(2,2), &wsa) != 0){cout<<"WSAStartup failed!/n";}}void getHostName(char* a){if (gethostname(a,128)==0){cout<<a<<endl;}else{cout<<"can not get hostname"<<endl;}}void getIP(char* a){struct hostent *pHost;pHost=gethostbyname(a);for( int i = 0; pHost!= NULL && pHost->h_addr_list[i]!= NULL; i++ ) { const char* pIP=inet_ntoa (*(struct in_addr* )pHost->h_addr_list[i]);cout<<pIP<<endl;}}int getMac(){NCB ncb; UCHAR uRetCode; int num = 0; LANA_ENUM lana_enum; memset(&ncb, 0, sizeof(ncb) ); ncb.ncb_command = NCBENUM; // 对网卡发送请求的命令,获取网卡数ncb.ncb_buffer = (unsigned char*)&lana_enum; ncb.ncb_length = sizeof(lana_enum); struct ASTAT //copy头文件中定义{ADAPTER_STATUS adapt;NAME_BUFFER NameBuf[30];};//向网卡发送NCBENUM命令,以获取当前机器的网卡信息,如有多少个网卡 //每张网卡的编号等 uRetCode = Netbios(&ncb); if (uRetCode == 0) { num = lana_enum.length; //对每一张网卡,以其网卡编号为输入编号,获取其MAC地址 for (int i = 0; i < num; i++) { ASTAT Adapter; memset(&ncb,0,sizeof(ncb)); //使用之前要使ncb结构清0ncb.ncb_command=NCBRESET; //对选定的网卡发送命令,以便进行初始化ncb.ncb_lana_num=lana_enum.lana[i];uRetCode=Netbios(&ncb);//memset(&ncb,0,sizeof(ncb)); ncb.ncb_command=NCBASTAT;strcpy((char*)ncb.ncb_callname,"*");ncb.ncb_buffer=(UCHAR*)&Adapter;ncb.ncb_length=sizeof(Adapter);//接着发送命令获取网卡信息uRetCode=Netbios(&ncb);if(uRetCode==0){char *lpmac;sprintf(mac,"%02X-%02X-%02X-%02X-%02X-%02X",Adapter.adapt.adapter_address[0],Adapter.adapt.adapter_address[1],Adapter.adapt.adapter_address[2],Adapter.adapt.adapter_address[3],Adapter.adapt.adapter_address[4],Adapter.adapt.adapter_address[5]);lpmac=mac;cout<<lpmac<<endl;}else{cout<<"exceptions:"<<(int)uRetCode<<endl;}} } return num; }void setIP(string s){string cmd="netsh interface ip set address name=/"无线网络连接/" source=static addr="+s+" mask=255.255.255.0 gateway=192.168.1.1 ";WinExec(cmd.c_str() , SW_SHOW);//WinExec("netsh interface ip set address name=/"无线网络连接/" source=static addr=192.168.1.5 mask=255.255.255.0 gateway=192.168.1.1 ", SW_SHOW);}

参照vc++网络高级编程。在拿网卡时调试了好久。。。后来在呀爷的帮助下，才发现。。。原来写错了个字母。。。正确为NCBASTAT;

还有，网卡不活动时是测试不到的。。。