[记]WIndow/Linux 获取本机(全部)IPv4、IPv6、MAC地址方法 (C/C++)

Linux 获取本机IP、MAC地址用法大全

 //#include <sys/types.h>

 #include <ifaddrs.h>

 #include <sys/ioctl.h>

 #include <net/if.h>

 #include <string.h>

 #include <stdio.h>

 #include <unistd.h>

 #include <netdb.h>

 //#include <sys/socket.h>

 //#include <netinet/in.h>

 #include <arpa/inet.h>

 void pHx(unsigned char* p,int len){

   printf("Hex: ");

   for(int i=;i<len;i++){

     printf("%02X:",p[i]);

   }

   printf("\b\n");

 }

 char* getMac(char* mac,char* dv){

     struct   ifreq   ifreq;

     int   sock;

     if(!mac || !dv)

         return mac;

     if((sock=socket(AF_INET,SOCK_STREAM,)) <)

     {

         perror( "socket ");

         return mac;

     }

     strcpy(ifreq.ifr_name,dv);

     if(ioctl(sock,SIOCGIFHWADDR,&ifreq) <)

     {

         perror( "ioctl ");

         return mac;

     }

     pHx((unsigned char*)ifreq.ifr_hwaddr.sa_data,sizeof(ifreq.ifr_hwaddr.sa_data));

     sprintf(mac, "%02X:%02X:%02X:%02X:%02X:%02X", //以太网MAC地址的长度是48位

            (unsigned char)ifreq.ifr_hwaddr.sa_data[],

            (unsigned char)ifreq.ifr_hwaddr.sa_data[],

            (unsigned char)ifreq.ifr_hwaddr.sa_data[],

            (unsigned char)ifreq.ifr_hwaddr.sa_data[],

            (unsigned char)ifreq.ifr_hwaddr.sa_data[],

            (unsigned char)ifreq.ifr_hwaddr.sa_data[]);

     return mac;

 }

 int main (int argc, const char * argv[])

 {

     char hname[];

     struct hostent *hent;

     int i;

     gethostname(hname, sizeof(hname));

     //hent = gethostent();

     hent = gethostbyname(hname);

     printf("hostname: %s\n", hent->h_name);

 //----------------------------------------------------------

     printf("\n\n");

     char mac[];

     struct ifaddrs * ifap0=NULL,*ifap=NULL;

     void * tmpAddrPtr=NULL;

     getifaddrs(&ifap0);

     ifap=ifap0;

     while (ifap!=NULL) {

         if (ifap->ifa_addr->sa_family==AF_INET) { // check it is IP4

             // is a valid IP4 Address

             tmpAddrPtr=&((struct sockaddr_in *)ifap->ifa_addr)->sin_addr;

             char addressBuffer[INET_ADDRSTRLEN];

             inet_ntop(AF_INET, tmpAddrPtr, addressBuffer, INET_ADDRSTRLEN);

             if(strcmp(addressBuffer,"127.0.0.1")!=){

             printf("%s IPv4: %s\n", ifap->ifa_name, addressBuffer);

             printf("MAC: %s\n\n",getMac(mac,ifap->ifa_name));

             }

         } else if (ifap->ifa_addr->sa_family==AF_INET6) { // check it is IP6

             // is a valid IP6 Address

             tmpAddrPtr=&((struct sockaddr_in *)ifap->ifa_addr)->sin_addr;

             char addressBuffer[INET6_ADDRSTRLEN];

             inet_ntop(AF_INET6, tmpAddrPtr, addressBuffer, INET6_ADDRSTRLEN);

             if(strcmp(addressBuffer,"::")!=){

                 printf("%s IPv6: %s\n", ifap->ifa_name, addressBuffer);

                 printf("MAC: %s\n\n",getMac(mac,ifap->ifa_name));

             }

         }

         ifap=ifap->ifa_next;

     }

     if (ifap0) { freeifaddrs(ifap0); ifap0 = NULL; }

     return ;

 } 

输出:

hostname: localhost

eth0 IPv4: 192.168.42.2

MAC: 02:42:c0:a8:2a:02

eth0 IPv6: 0:0:fe80::42:c0ff

MAC: 02:42:c0:a8:2a:02

(更多参考:Linux 获取本机IP、MAC地址用法大全)

　　

windows下,详情见：http://www.cnblogs.com/lzpong/p/6137652.html