http://cache.baidu.com/c?m=9f65cb4a8c8507ed4fece7631046893b4c4380146d96864968d4e414c422461f1c26a4ed743f4344829f272356b2495ee8fa2b70311e22b386c8884ddbba972238885067315ecc55578e59f9c45125c037912ab2f348b9fda66584aea392830b11dd52756d80879c5b704edd6f81556dbce48e48644810cdfa3115a10227&p=8f66c64ad7c450ef08e2977b4a4f9d&user=baidu
Visual C++通过snmp获取mac地址
在visual c++环境下获取MAC地址的方式有很多种，但我觉得下面的方法最好。因为它不依赖平台platform SDK (现在已经不支持VC++ 6 now anyway), 或者其他库。
但要注意一些问题：因为要使用WSAStartup()函数，所以需要引入WS2_32.dll。#pragma comment(lib,"Ws2_32.lib")
#include <winsock.h>
#pragma comment(lib,"Ws2_32.lib")
#pragma comment(lib,"Snmpapi.lib")
#include <snmp.h>
#include <conio.h>
#include <stdio.h>
typedef BOOL(WINAPI * pSnmpExtensionInit) (
IN DWORD dwTimeZeroReference,
OUT HANDLE * hPollForTrapEvent,
OUT AsnObjectIdentifier * supportedView);
typedef BOOL(WINAPI * pSnmpExtensionTrap) (
OUT AsnObjectIdentifier * enterprise,
OUT AsnInteger * genericTrap,
OUT AsnInteger * specificTrap,
OUT AsnTimeticks * timeStamp,
OUT RFC1157VarBindList * variableBindings);
typedef BOOL(WINAPI * pSnmpExtensionQuery) (
IN BYTE requestType,
IN OUT RFC1157VarBindList * variableBindings,
OUT AsnInteger * errorStatus,
OUT AsnInteger * errorIndex);
typedef BOOL(WINAPI * pSnmpExtensionInitEx) (
OUT AsnObjectIdentifier * supportedView);
void main()
{
WSADATA WinsockData;
if (WSAStartup(MAKEWORD(2, 0), &WinsockData) != 0) {
fprintf(stderr, "This program requires Winsock 2.x!\n");
return;
}
HINSTANCE m_hInst;
pSnmpExtensionInit m_Init;
pSnmpExtensionInitEx m_InitEx;
pSnmpExtensionQuery m_Query;
pSnmpExtensionTrap m_Trap;
HANDLE PollForTrapEvent;
AsnObjectIdentifier SupportedView;
UINT OID_ifEntryType[] = {
1, 3, 6, 1, 2, 1, 2, 2, 1, 3
};
UINT OID_ifEntryNum[] = {
1, 3, 6, 1, 2, 1, 2, 1
};
UINT OID_ipMACEntAddr[] = {
1, 3, 6, 1, 2, 1, 2, 2, 1, 6
}; //, 1 ,6 };
AsnObjectIdentifier MIB_ifMACEntAddr =
{ sizeof(OID_ipMACEntAddr) / sizeof(UINT), OID_ipMACEntAddr };
AsnObjectIdentifier MIB_ifEntryType = {
sizeof(OID_ifEntryType) / sizeof(UINT), OID_ifEntryType
};
AsnObjectIdentifier MIB_ifEntryNum = {
sizeof(OID_ifEntryNum) / sizeof(UINT), OID_ifEntryNum
};
RFC1157VarBindList varBindList;
RFC1157VarBind varBind[2];
AsnInteger errorStatus;
AsnInteger errorIndex;
AsnObjectIdentifier MIB_NULL = {
0, 0
};
int ret;
int dtmp;
int i = 0, j = 0;
BOOL found = FALSE;
char TempEthernet[13];
m_Init = NULL;
m_InitEx = NULL;
m_Query = NULL;
m_Trap = NULL;
/* Load the SNMP dll and get the addresses of the functions
necessary */
m_hInst = LoadLibrary("inetmib1.dll");
if (m_hInst < (HINSTANCE) HINSTANCE_ERROR) {
m_hInst = NULL;
return;
}
m_Init =
(pSnmpExtensionInit) GetProcAddress(m_hInst, "SnmpExtensionInit");
m_InitEx =
(pSnmpExtensionInitEx) GetProcAddress(m_hInst,
"SnmpExtensionInitEx");
m_Query =
(pSnmpExtensionQuery) GetProcAddress(m_hInst,
"SnmpExtensionQuery");
m_Trap =
(pSnmpExtensionTrap) GetProcAddress(m_hInst, "SnmpExtensionTrap");
m_Init(GetTickCount(), &PollForTrapEvent, &SupportedView);
/* Initialize the variable list to be retrieved by m_Query */
varBindList.list = varBind;
varBind[0].name = MIB_NULL;
varBind[1].name = MIB_NULL;
/* Copy in the OID to find the number of entries in the
Inteface table */
varBindList.len = 1; /* Only retrieving one item */
SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryNum);
ret =
m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
&errorIndex);
printf("# of adapters in this system : %i\n",
varBind[0].value.asnValue.number); varBindList.len = 2;
/* Copy in the OID of ifType, the type of interface */
SNMP_oidcpy(&varBind[0].name, &MIB_ifEntryType);
/* Copy in the OID of ifPhysAddress, the address */
SNMP_oidcpy(&varBind[1].name, &MIB_ifMACEntAddr);
do {
/* Submit the query. Responses will be loaded into varBindList.
We can expect this call to succeed a # of times corresponding
to the # of adapters reported to be in the system */
ret =
m_Query(ASN_RFC1157_GETNEXTREQUEST, &varBindList, &errorStatus,
&errorIndex); if (!ret) ret = 1;
else
/* Confirm that the proper type has been returned */
ret =
SNMP_oidncmp(&varBind[0].name, &MIB_ifEntryType,
MIB_ifEntryType.idLength); if (!ret) {
j++;
dtmp = varBind[0].value.asnValue.number;
printf("Interface #%i type : %i\n", j, dtmp);
/* Type 6 describes ethernet interfaces */
if (dtmp == 6) {
/* Confirm that we have an address here */
ret =
SNMP_oidncmp(&varBind[1].name, &MIB_ifMACEntAddr,
MIB_ifMACEntAddr.idLength);
if ((!ret)
&& (varBind[1].value.asnValue.address.stream != NULL)) {
if (
(varBind[1].value.asnValue.address.stream[0] ==
0x44)
&& (varBind[1].value.asnValue.address.stream[1] ==
0x45)
&& (varBind[1].value.asnValue.address.stream[2] ==
0x53)
&& (varBind[1].value.asnValue.address.stream[3] ==
0x54)
&& (varBind[1].value.asnValue.address.stream[4] ==
0x00)) {
/* Ignore all dial-up networking adapters */
printf("Interface #%i is a DUN adapter\n", j);
continue;
}
if (
(varBind[1].value.asnValue.address.stream[0] ==
0x00)
&& (varBind[1].value.asnValue.address.stream[1] ==
0x00)
&& (varBind[1].value.asnValue.address.stream[2] ==
0x00)
&& (varBind[1].value.asnValue.address.stream[3] ==
0x00)
&& (varBind[1].value.asnValue.address.stream[4] ==
0x00)
&& (varBind[1].value.asnValue.address.stream[5] ==
0x00)) {
/* Ignore NULL addresses returned by other network
interfaces */
printf("Interface #%i is a NULL address\n", j);
continue;
}
sprintf(TempEthernet, "%02x%02x%02x%02x%02x%02x",
varBind[1].value.asnValue.address.stream[0],
varBind[1].value.asnValue.address.stream[1],
varBind[1].value.asnValue.address.stream[2],
varBind[1].value.asnValue.address.stream[3],
varBind[1].value.asnValue.address.stream[4],
varBind[1].value.asnValue.address.stream[5]);
printf("MAC Address of interface #%i: %s\n", j,
