嵌入式

获取linux机器的IP和mac地址

2019-07-12 21:45发布

站内文章 / 嵌入式Linux
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#include // for ::strncpy #include // for ::ioctl #include // for inet_ntoa #include // for struct ifreq #include // for ::close #include #include #include using namespace std; int GetNetDeviceAddress(int fd, const char* netDevice, struct in_addr* addr); vector getNetDevName() {     vector result;     ifstream ifs("/proc/net/dev");     string line;     if(ifs) {         while(getline(ifs, line)) {             size_t end = 0;             if ((end = line.find(":")) != string::npos) {                 size_t start = line.find_first_not_of(' ');                 string name = line.substr(start, end-start);                 if (name.compare("lo")) {                     result.push_back(name);                 }             }         }     }     ifs.close();     return result; } vector getLocalIpAddress() {     vector ipAddrs;     vector netdevs = getNetDevName();     if (netdevs.size() <= 0) {         return ipAddrs;     }     for(size_t i=0; i 0) {             struct in_addr addr;             bzero(&addr, sizeof(addr));             if (!(GetNetDeviceAddress(sock, netdevs[i].c_str(), &addr))) {                 ipAddrs.push_back(inet_ntoa(addr));             }             ::close(sock);         }     }     return ipAddrs; } int GetNetDeviceAddress(int fd, const char* netDevice, struct in_addr* addr) {     struct ifreq req;     ::strncpy(req.ifr_name, netDevice, IF_NAMESIZE);     if (::ioctl(fd, SIOCGIFFLAGS, &req) < 0) {         return -1;     }     // Check whether network interface can be accessed     if ((req.ifr_flags & IFF_RUNNING) == 0) {         return -1;     }     // Retrieve binded IP address for the interface     if (::ioctl(fd, SIOCGIFADDR, &req) < 0) {         return -1;     }     else {         ::memcpy(addr, &(((struct sockaddr_in*)&req.ifr_addr)->sin_addr), sizeof(struct in_addr));     }     return 0; } vector getLocalMacAddress() {     vector macAddrs;     vector netdevs = getNetDevName();     if (netdevs.size() <= 0) {         return macAddrs;     }     for(size_t i=0; i 0) {             struct ifreq ifr_mac;             bzero(&ifr_mac, sizeof(ifr_mac));             ::strncpy(ifr_mac.ifr_name, netdevs[i].c_str(), IF_NAMESIZE);             char addr[32] = {0};             if (::ioctl(sock, SIOCGIFHWADDR, &ifr_mac) >= 0) {                 snprintf(addr, 32, "%02x:%02x:%02x:%02x:%2x:%2x",                         (unsigned char)ifr_mac.ifr_hwaddr.sa_data[0],                         (unsigned char)ifr_mac.ifr_hwaddr.sa_data[1],                         (unsigned char)ifr_mac.ifr_hwaddr.sa_data[2],                         (unsigned char)ifr_mac.ifr_hwaddr.sa_data[3],                         (unsigned char)ifr_mac.ifr_hwaddr.sa_data[4],                         (unsigned char)ifr_mac.ifr_hwaddr.sa_data[5]);                 macAddrs.push_back(addr);             }             else {                 cout<<"can not get local mac address for " << netdevs[i]< ips = getLocalIpAddress();     vector macs = getLocalMacAddress();     cout << "IP:"<

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