- //linux
- int GetLocalMacAddr(char *szMac,int *pnMacLen)
- {
- int sock;
- struct sockaddr_in sin;
- struct sockaddr sa;
- struct ifreq ifr;
- unsigned char mac[6];
- sock=socket(AF_INET,SOCK_DGRAM,0);
- if (sock==-1)
- {
- perror("socket");
- return 1;
- }
- strncpy(ifr.ifr_name,"eth0",sizeof(ifr.ifr_name));
- ifr.ifr_name[IFNAMSIZ-1] = 0;
- memset(mac,0,sizeof(mac));
- if (ioctl(sock,SIOCGIFHWADDR,&ifr)< 0)
- {
- perror("ioctl");
- return 2;
- }
- memcpy(&sa,&ifr.ifr_addr,sizeof(sin));
- memcpy(mac,sa.sa_data,sizeof(mac));
- char curmacstr[64];
- memset(curmacstr,0,sizeof(curmacstr));
- //sprintf(curmacstr,"%.2X-%.2X-%.2X-%.2X-%.2X-%.2X",mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
- sprintf(curmacstr,"%.2X:%.2X:%.2X:%.2X:%.2X:%.2X",mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
- strcpy(szMac,curmacstr);
- return 0;
- }
- // windows
- int CUtil::GetOtherMacAddr(char *szIP,char *szBuf,int *pnBufLen)
- {
- HRESULT hr;
- IPAddr ipAddr;
- ULONG pulMac[2];
- ULONG ulLen;
- char strMacAddr[100]={0};
- ipAddr = inet_addr (szIP);
- memset (pulMac, 0xff, sizeof (pulMac));
- ulLen = 6;
- hr = SendARP (ipAddr, 0, pulMac, &ulLen);
- if(hr!=NO_ERROR)
- return 1;
- unsigned char * mac_addr=(unsigned char*)pulMac;
- //sprintf(strMacAddr,"%02X-%02X-%02X-%02X-%02X-%02X",mac_addr[0],mac_addr[1],
- // mac_addr[2],mac_addr[3],mac_addr[4],mac_addr[5]);
- sprintf(strMacAddr,"%02X:%02X:%02X:%02X:%02X:%02X",mac_addr[0],mac_addr[1],
- mac_addr[2],mac_addr[3],mac_addr[4],mac_addr[5]);
- if ( *pnBufLen <= (int)strlen(strMacAddr) )
- return 2;
- strcpy(szBuf,strMacAddr);
- *pnBufLen = strlen(szBuf);
- return 0;
- }
- int CUtil::GetLocalMacAddr(char *szMac,int *pnMacLen,char *szIP /*=NULL */)
- {
- //如果指定了IP,则直接按IP获取MAC
- //否则,需要先获取本机名称,再获取IP,再获取MAC
- if ( szIP != NULL )
- return GetOtherMacAddr(szIP,szMac,pnMacLen);
- char szHostName[256] = {0};
- int nRet = gethostname(szHostName,256);
- if ( nRet == SOCKET_ERROR )
- return 1;
- //获取本机名称
- struct hostent* hHost = gethostbyname(szHostName);
- if ( hHost == NULL || hHost->h_addr_list[0] == NULL )
- return 2;
- //获取IP地址
- memset(szHostName,0,256);
- strcpy(szHostName,inet_ntoa(*(struct in_addr *)hHost->h_addr_list[0]));
- //获取MAC
- return GetOtherMacAddr(szHostName,szMac,pnMacLen);
- }
- //该片段来自于http://www.codesnippet.cn/detail/141020136390.html
来源: http://www.codesnippet.cn/detail/141020136390.html