Windows客户端开发获取系统mac地址(使用GetAdaptersInfo和GetAdaptersAddresses)

使用WMI可以获取本地计算机的mac信息&＃xff0c;现在就用另外两种方法获取mac地址&＃xff1a;
GetAdaptersInfo 和 GetAdaptersAddresses

GetAdaptersInfo
功能&＃xff1a;
The GetAdaptersInfo function retrieves adapter information for the local computer.
原型&＃xff1a;

DWORD GetAdaptersInfo(_Out_ PIP_ADAPTER_INFO pAdapterInfo,_Inout_ PULONG pOutBufLen
);

其中参数有PIP_ADAPTER_INFO&＃xff1a;

typedef struct _IP_ADAPTER_INFO {struct _IP_ADAPTER_INFO* Next;DWORD ComboIndex;char AdapterName[MAX_ADAPTER_NAME_LENGTH &＃43; 4];char Description[MAX_ADAPTER_DESCRIPTION_LENGTH &＃43; 4];UINT AddressLength;BYTE Address[MAX_ADAPTER_ADDRESS_LENGTH];DWORD Index;UINT Type;UINT DhcpEnabled;PIP_ADDR_STRING CurrentIpAddress;IP_ADDR_STRING IpAddressList;IP_ADDR_STRING GatewayList;IP_ADDR_STRING DhcpServer;BOOL HaveWins;IP_ADDR_STRING PrimaryWinsServer;IP_ADDR_STRING SecondaryWinsServer;time_t LeaseObtained;time_t LeaseExpires;
} IP_ADAPTER_INFO, *PIP_ADAPTER_INFO;

上面的结构体中&＃xff0c;我们注意关注Type、AddressLength、Address

Type:

#define MIB_IF_TYPE_OTHER 1
#define MIB_IF_TYPE_ETHERNET 6
#define MIB_IF_TYPE_TOKENRING 9
#define MIB_IF_TYPE_FDDI 15
#define MIB_IF_TYPE_PPP 23
#define MIB_IF_TYPE_LOOPBACK 24
#define MIB_IF_TYPE_SLIP 28

上代码&＃xff1a;

bool GetMacAddressByAdaptersInfo(std::string &mac_address)
{bool ret &＃61; false;ULONG out_buf_len &＃61; sizeof(IP_ADAPTER_INFO);PIP_ADAPTER_INFO adapter_info &＃61; (IP_ADAPTER_INFO*)malloc(sizeof(IP_ADAPTER_INFO));if (adapter_info &＃61;&＃61; NULL)return false;// Make an initial call to GetAdaptersInfo to get the necessary size into the out_buf_len variableif (GetAdaptersInfo(adapter_info, &out_buf_len) &＃61;&＃61; ERROR_BUFFER_OVERFLOW){free(adapter_info);adapter_info &＃61; (IP_ADAPTER_INFO *)malloc(out_buf_len);if (adapter_info &＃61;&＃61; NULL)return false;}if (GetAdaptersInfo(adapter_info, &out_buf_len) &＃61;&＃61; NO_ERROR){PIP_ADAPTER_INFO adapter &＃61; adapter_info;for (; adapter !&＃61; NULL; adapter &＃61; adapter->Next){// 确保是以太网if (adapter->Type !&＃61; MIB_IF_TYPE_ETHERNET)continue;// 确保MAC地址的长度为 00-00-00-00-00-00if (adapter->AddressLength !&＃61; 6)continue;std::cout <<"GetMacAddressByAdaptersInfo: " <<std::hex <<int(adapter->Address[0]) <<" "<<int(adapter->Address[1]) <<" "<<int(adapter->Address[2]) <<" "<<int(adapter->Address[3]) <<" "<<int(adapter->Address[4]) <<" "<<int(adapter->Address[5]) <<std::endl;ret &＃61; true;break;}}free(adapter_info);return ret;
}

注意&＃xff1a;
On Windows XP and later: Use the GetAdaptersAddresses function instead of GetAdaptersInfo.
所以稍后会介绍GetAdaptersAddresses。

GetAdaptersAddresses
功能&＃xff1a;
The GetAdaptersAddresses function retrieves the addresses associated with the adapters on the local computer.
原型&＃xff1a;
“&＃96;cpp
ULONG WINAPI GetAdaptersAddresses(
In ULONG Family,
In ULONG Flags,
In PVOID Reserved,
Inout PIP_ADAPTER_ADDRESSES AdapterAddresses,
Inout PULONG SizePointer
);

第一个参数Family我们设置为AF_UNSPEC&＃xff1a;
Return both IPv4 and IPv6 addresses associated with adapters with IPv4 or IPv6 enabled.其中参数PIP_ADAPTER_ADDRESSES&＃xff1a;
&＃96;&＃96;&＃96;cpp
typedef struct _IP_ADAPTER_ADDRESSES {union {ULONGLONG Alignment;struct {ULONG Length;DWORD IfIndex;};};struct _IP_ADAPTER_ADDRESSES *Next;PCHAR AdapterName;PIP_ADAPTER_UNICAST_ADDRESS FirstUnicastAddress;PIP_ADAPTER_ANYCAST_ADDRESS FirstAnycastAddress;PIP_ADAPTER_MULTICAST_ADDRESS FirstMulticastAddress;PIP_ADAPTER_DNS_SERVER_ADDRESS FirstDnsServerAddress;PWCHAR DnsSuffix;PWCHAR Description;PWCHAR FriendlyName;BYTE PhysicalAddress[MAX_ADAPTER_ADDRESS_LENGTH];DWORD PhysicalAddressLength;DWORD Flags;DWORD Mtu;DWORD IfType;IF_OPER_STATUS OperStatus;DWORD Ipv6IfIndex;DWORD ZoneIndices[16];PIP_ADAPTER_PREFIX FirstPrefix;ULONG64 TransmitLinkSpeed;ULONG64 ReceiveLinkSpeed;PIP_ADAPTER_WINS_SERVER_ADDRESS_LH FirstWinsServerAddress;PIP_ADAPTER_GATEWAY_ADDRESS_LH FirstGatewayAddress;ULONG Ipv4Metric;ULONG Ipv6Metric;IF_LUID Luid;SOCKET_ADDRESS Dhcpv4Server;NET_IF_COMPARTMENT_ID CompartmentId;NET_IF_NETWORK_GUID NetworkGuid;NET_IF_CONNECTION_TYPE ConnectionType;TUNNEL_TYPE TunnelType;SOCKET_ADDRESS Dhcpv6Server;BYTE Dhcpv6ClientDuid[MAX_DHCPV6_DUID_LENGTH];ULONG Dhcpv6ClientDuidLength;ULONG Dhcpv6Iaid;PIP_ADAPTER_DNS_SUFFIX FirstDnsSuffix;
} IP_ADAPTER_ADDRESSES, *PIP_ADAPTER_ADDRESSES;

上面结构体中我们关注&＃xff1a;PhysicalAddressLength、PhysicalAddress

上代码&＃xff1a;

bool GetMacAddressByAdaptersAddresses(std::string &mac_address)
{bool ret &＃61; false;ULONG out_buf_len &＃61; sizeof(IP_ADAPTER_ADDRESSES);PIP_ADAPTER_ADDRESSES addresses &＃61; (IP_ADAPTER_ADDRESSES*)malloc(out_buf_len);if (addresses &＃61;&＃61; NULL)return false;// Make an initial call to GetAdaptersAddresses to get the necessary size into the ulOutBufLen variableif (GetAdaptersAddresses(AF_UNSPEC, 0, NULL, addresses, &out_buf_len) &＃61;&＃61; ERROR_BUFFER_OVERFLOW){free(addresses);addresses &＃61; (IP_ADAPTER_ADDRESSES*)malloc(out_buf_len);if (addresses &＃61;&＃61; NULL)return false;}if (GetAdaptersAddresses(AF_UNSPEC, 0, NULL, addresses, &out_buf_len) &＃61;&＃61; NO_ERROR){// If successful, output some information from the data we receivedPIP_ADAPTER_ADDRESSES curr_addresses &＃61; addresses;for (; curr_addresses !&＃61; NULL; curr_addresses &＃61; curr_addresses->Next){// 确保MAC地址的长度为 00-00-00-00-00-00if (curr_addresses->PhysicalAddressLength !&＃61; 6)continue;std::cout <<"GetMacAddressByAdaptersAddresses: " <<std::hex <<int(curr_addresses->PhysicalAddress[0]) <<" "<<int(curr_addresses->PhysicalAddress[1]) <<" "<<int(curr_addresses->PhysicalAddress[2]) <<" "<<int(curr_addresses->PhysicalAddress[3]) <<" "<<int(curr_addresses->PhysicalAddress[4]) <<" "<<int(curr_addresses->PhysicalAddress[5]) <<std::endl;ret &＃61; true;break;}}free(addresses);return ret;
}