c语言mac地址解析函数 c语言获取mac地址
用C语言写个程序：先获取本机MAC地址，据此得到Link Local地址（IPv6 Address)
麻烦，不爱动手，上网查一下，就那么两个api，一用就ok了。easy的很。
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#include winsock2.h
#include Iphlpapi.h
#include stdio.h
void byte2Hex(unsigned char bData,unsigned char hex[])
{
int high=bData/16,low =bData %16;
hex[0] = (high 10)?('0'+high):('A'+high-10);
hex[1] = (low 10)?('0'+low):('A'+low-10);
}
int getLocalMac(unsigned char *mac) //获取本机MAC地址
{
ULONG ulSize=0;
PIP_ADAPTER_INFO pInfo=NULL;
int temp=0;
temp = GetAdaptersInfo(pInfo,ulSize);//第一次调用，获取缓冲区大小
pInfo=(PIP_ADAPTER_INFO)malloc(ulSize);
temp = GetAdaptersInfo(pInfo,ulSize);
int iCount=0;
while(pInfo)//遍历每一张网卡
{
// pInfo-Address 是MAC地址
for(int i=0;i(int)pInfo-AddressLength;i++)
{
byte2Hex(pInfo-Address[i],mac[iCount]);
iCount+=2;
if(i(int)pInfo-AddressLength-1)
{
mac[iCount++] = ':';
}else
{
mac[iCount++] = '#';
}
}
pInfo = pInfo-Next;
}
if(iCount 0)
{
mac[--iCount]='\0';
return iCount;
}
else return -1;
}
int main(int argc, char* argv[])
{
unsigned char address[1024];
if(getLocalMac(address)0)
{
printf("mac-%s\n",address);
}else
{
printf("invoke getMAC error!\n");
}
return 0;
}
需要这两个：iphlpapi.lib ， ws2_32.lib 静态库（VC添加到工程LINK里）
查询MAC地址的C语言代码…要求简单精炼！
#include windows.h
#include wincon.h
#include stdlib.h
#include stdio.h
typedef struct _ASTAT_
{
ADAPTER_STATUS adapt;
NAME_BUFFER NameBuff [30];
}ASTAT, * PASTAT;
ASTAT Adapter;
void main (void)
{
NCB ncb;
UCHAR uRetCode;
char NetName[50];
memset( ncb, 0, sizeof(ncb) );
ncb.ncb_command = NCBRESET;
ncb.ncb_lana_num = 0;
uRetCode = Netbios( ncb );
printf( "The NCBRESET return code is: 0x%x \n ", uRetCode );
memset( ncb, 0, sizeof(ncb) );
ncb.ncb_command = NCBASTAT;
ncb.ncb_lana_num = 0;
strcpy( (char*)ncb.ncb_callname, "* " );
ncb.ncb_buffer = (unsigned char *) Adapter;
ncb.ncb_length = sizeof(Adapter);
uRetCode = Netbios( ncb );
printf( "The NCBASTAT return code is: 0x%x \n ", uRetCode );
if ( uRetCode == 0 )
{
printf( "The Ethernet Number is: %02x%02x%02x%02x%02x%02x\n ",
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] );
}
}
c语言，获取本机mac地址，那位大神解答下。
有个简单的方法，提供给你个思路
system("ipconfig /all tmp.txt");
然后打开tmp.txt
查找本地连接 再找之后的Physical Address字符串，然后找冒号，
取这个冒号后面的值就是mac了
C语言如何获取嵌入式linux网卡上的mac地址
全对应的
getmacaddress.c
#include stdio.h
#if defined(WIN32) || (!defined(__GNUC__) !defined(__clang__))
#include winsock2.h
#include iphlpapi.h
#include stdlib.h
#pragma comment(lib, "IPHLPAPI.lib")
#elif defined(__linux__)
#include string.h //strncpy
#include sys/ioctl.h
#include sys/socket.h
#include net/if.h
#else
//bsd
#include sys/types.h //FreeBSD u_int
#include ifaddrs.h
#include net/if.h
#include net/if_dl.h
#include net/if_types.h
#endif
void getmacaddress(char *mac_address){
#if defined(WIN32) || (!defined(__GNUC__) !defined(__clang__))
PIP_ADAPTER_INFO pAdapterInfo;
PIP_ADAPTER_INFO pAdapter;
ULONG ulOutBufLen = sizeof(IP_ADAPTER_INFO);
unsigned char *addr;
mac_address[0]=0;
pAdapterInfo = (IP_ADAPTER_INFO*)malloc(sizeof(IP_ADAPTER_INFO));
if(!pAdapterInfo)return;
if(GetAdaptersInfo(pAdapterInfo, ulOutBufLen) == ERROR_BUFFER_OVERFLOW){
free(pAdapterInfo);
pAdapterInfo = (IP_ADAPTER_INFO*)malloc(ulOutBufLen);
if(!pAdapterInfo)return;
}
if(GetAdaptersInfo(pAdapterInfo, ulOutBufLen) == NO_ERROR){
pAdapter = pAdapterInfo;
if(pAdapter){
addr = pAdapter-Address;
sprintf(mac_address,"%02x:%02x:%02x:%02x:%02x:%02x",
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
}
}
free(pAdapterInfo);
#elif defined(__linux__)
mac_address[0]=0;
struct ifreq *ifr, *ifend;
struct ifreq ifreq;
struct ifconf ifc;
struct ifreq ifs[16];
int fd;
unsigned char *addr;
fd = socket(AF_INET, SOCK_DGRAM, 0);
ifc.ifc_len = sizeof(ifs);
ifc.ifc_req = ifs;
if(ioctl(fd, SIOCGIFCONF, ifc)0){close(fd);return;}
ifend = ifs + (ifc.ifc_len / sizeof(struct ifreq));
for(ifr = ifc.ifc_req;ifr ifend;ifr++){
if(ifr-ifr_addr.sa_family == AF_INET){
strncpy(ifreq.ifr_name, ifr-ifr_name, sizeof(ifreq.ifr_name));
if(ioctl(fd, SIOCGIFHWADDR, ifreq)0)continue;
addr = ifreq.ifr_hwaddr.sa_data;
sprintf(mac_address,"%02x:%02x:%02x:%02x:%02x:%02x",
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
}
}
close(fd);
#else
//bsd
mac_address[0]=0;
struct ifaddrs *ifa_list, *ifa;
struct sockaddr_dl *dl;
unsigned char *addr;
if(getifaddrs(ifa_list)0)return;
for(ifa = ifa_list;ifa;ifa = ifa-ifa_next){
dl = (struct sockaddr_dl*)ifa-ifa_addr;
if (dl-sdl_family == AF_LINK dl-sdl_type == IFT_ETHER) {
addr = (unsigned char*)LLADDR(dl);
sprintf(mac_address,"%02x:%02x:%02x:%02x:%02x:%02x",
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
return;
}
}
freeifaddrs(ifa_list);
#endif
}
如何用C语言获取网卡的mac地址
为什么一定要用C语言呢？这个用C语言比较麻烦，需要的知识比较多，完全可以用更简单的办法啊。命令行上这样的命令“ipconfig -all | find "物理地址"”，可以很简单的就得到了。
如果是英文系统， 将“物理地址”换成“Physical Address”即可。
如果非的要用C语言，则可以先调用system函数， system("ipconfig -all | find \"物理地址\" temp.txt" ); 将mac地址信息存入临时文件temp.txt；然后再从中提取。
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