请问如何枚举本机的所有的网卡和modem，并且获得他们的名称，IP地址和子网掩码？

[xiaochai123]

请问如何枚举本机的所有的网卡和modem，并且获得他们的名称，IP地址和子网掩码？

[Kudeet]

得到网卡对应的IP:
http://community.csdn.net/Expert/FAQ/FAQ_Index.asp?id=195802

[gracezhu]

int MyGetHostIP(LPDWORD lpIP, LPDWORD lpMask)
{
WORD wVersionRequested = MAKEWORD(2, 2);
WSADATA wsaData;
if (WSAStartup(wVersionRequested, &wsaData) != 0) return 0;
int nAdapter = 0;
do
{
char szHostname[256];
if ( gethostname(szHostname, sizeof(szHostname)) ) break;
HOSTENT* pHostEnt = gethostbyname(szHostname);
if (pHostEnt == NULL) break;
if (pHostEnt->h_length != 4) break;

while ( pHostEnt->h_addr_list[nAdapter] )
{
in_addr address;
CopyMemory(&address.S_un.S_addr, pHostEnt->h_addr_list[nAdapter], pHostEnt->h_length);
*(lpIP + nAdapter) = address.S_un.S_addr;

if ( ++nAdapter >= 16 ) break;
}
} while(0);
WSACleanup();
return nAdapter;
}
使用IP Helper(需要安装SDK)的GetAdaptersInfo　API函数，它可以枚举出当前OS下的有效的网卡信息，具体实现如下：

#include <Iphlpapi.h>
#pragma comment(lib, "Iphlpapi.lib")

// Get and print information from IP_ADDR_STRING structure.
void PrintIPs(PIP_ADDR_STRING pCurIP, bool bFullInf, CString &strADDRList)
{
strADDRList = "";
if (pCurIP->IpAddress.String[0] == '\0')
{
strADDRList = "not presented\n\n";
return;
}
CString strTemp;
if (bFullInf)
{
do
{
strTemp.Format("IP Addr:[%s] Subnet Mask:[%s]\r\n",
pCurIP->IpAddress.String,
pCurIP->IpMask.String[0] == '\0' ? "no" : pCurIP->IpMask.String);
strADDRList += strTemp;
} while ((pCurIP = pCurIP->Next) != NULL);
}
else
{
do
{
strTemp.Format("%s ", pCurIP->IpAddress.String);
strADDRList += strTemp;
} while ((pCurIP = pCurIP->Next) != NULL);
}

}

void GetNICInfo()
{

IP_ADAPTER_INFO * IpAdaptersInfo,*IpAdaptersInfoHead;
ULONG ulOutBufLen;
DWORD dwRetVal;
CString strMsg;
CString strOutPut;
IpAdaptersInfo = (IP_ADAPTER_INFO *) GlobalAlloc( GPTR, sizeof( IP_ADAPTER_INFO ));
ulOutBufLen = sizeof( IP_ADAPTER_INFO );

if( ERROR_BUFFER_OVERFLOW == GetAdaptersInfo(IpAdaptersInfo,&ulOutBufLen))
{
GlobalFree( IpAdaptersInfo );
IpAdaptersInfo =(IP_ADAPTER_INFO *) GlobalAlloc( GPTR, ulOutBufLen );
}

if ( dwRetVal = GetAdaptersInfo( IpAdaptersInfo, &ulOutBufLen ) )
{
strMsg.Format(
"Call to GetAdaptersInfo failed. Return Value: %08x\r\n",
dwRetVal );
strOutPut+=strMsg;
}
else
{
IpAdaptersInfoHead = IpAdaptersInfo;
do
{
strMsg.Format( "MAC Address: %02x-%02x-%02x-%02x-%02x-%02x\r\n",
IpAdaptersInfo->Address[0],
IpAdaptersInfo->Address[1],
IpAdaptersInfo->Address[2],
IpAdaptersInfo->Address[3],
IpAdaptersInfo->Address[4],
IpAdaptersInfo->Address[5]);
strOutPut+=strMsg;
PrintIPs(&(IpAdaptersInfo->IpAddressList),TRUE, strMsg);
strOutPut+=strMsg;
strOutPut+="\r\n";

IpAdaptersInfo = IpAdaptersInfo->Next;
} while (IpAdaptersInfo);
}
GlobalFree( IpAdaptersInfoHead );
AfxMessageBox(strOutPut);
}
//search previous article

[xiaochai123]

up

[xiaoleixyz]

使用IP Helper(需要安装SDK)的GetAdaptersInfo　API函数，它可以枚举出当前OS下的有效的网卡信息，具体实现如下：

#include <Iphlpapi.h>
#pragma comment(lib, "Iphlpapi.lib")

// Get and print information from IP_ADDR_STRING structure.
void PrintIPs(PIP_ADDR_STRING pCurIP, bool bFullInf, CString &strADDRList)
{
strADDRList = "";
if (pCurIP->IpAddress.String[0] == '\0')
{
strADDRList = "not presented\n\n";
return;
}
CString strTemp;
if (bFullInf)
{
do
{
strTemp.Format("IP Addr:[%s] Subnet Mask:[%s]\r\n",
pCurIP->IpAddress.String,
pCurIP->IpMask.String[0] == '\0' ? "no" : pCurIP->IpMask.String);
strADDRList += strTemp;
} while ((pCurIP = pCurIP->Next) != NULL);
}
else
{
do
{
strTemp.Format("%s ", pCurIP->IpAddress.String);
strADDRList += strTemp;
} while ((pCurIP = pCurIP->Next) != NULL);
}

}

void GetNICInfo()
{

IP_ADAPTER_INFO * IpAdaptersInfo,*IpAdaptersInfoHead;
ULONG ulOutBufLen;
DWORD dwRetVal;
CString strMsg;
CString strOutPut;
IpAdaptersInfo = (IP_ADAPTER_INFO *) GlobalAlloc( GPTR, sizeof( IP_ADAPTER_INFO ));
ulOutBufLen = sizeof( IP_ADAPTER_INFO );

if( ERROR_BUFFER_OVERFLOW == GetAdaptersInfo(IpAdaptersInfo,&ulOutBufLen))
{
GlobalFree( IpAdaptersInfo );
IpAdaptersInfo =(IP_ADAPTER_INFO *) GlobalAlloc( GPTR, ulOutBufLen );
}

if ( dwRetVal = GetAdaptersInfo( IpAdaptersInfo, &ulOutBufLen ) )
{
strMsg.Format(
"Call to GetAdaptersInfo failed. Return Value: %08x\r\n",
dwRetVal );
strOutPut+=strMsg;
}
else
{
IpAdaptersInfoHead = IpAdaptersInfo;
do
{
strMsg.Format( "MAC Address: %02x-%02x-%02x-%02x-%02x-%02x\r\n",
IpAdaptersInfo->Address[0],
IpAdaptersInfo->Address[1],
IpAdaptersInfo->Address[2],
IpAdaptersInfo->Address[3],
IpAdaptersInfo->Address[4],
IpAdaptersInfo->Address[5]);
strOutPut+=strMsg;
PrintIPs(&(IpAdaptersInfo->IpAddressList),TRUE, strMsg);
strOutPut+=strMsg;
strOutPut+="\r\n";

IpAdaptersInfo = IpAdaptersInfo->Next;
} while (IpAdaptersInfo);
}
GlobalFree( IpAdaptersInfoHead );
AfxMessageBox(strOutPut);
}
//search previous article

[xiaoleixyz]

int MyGetHostIP(LPDWORD lpIP, LPDWORD lpMask)
{
WORD wVersionRequested = MAKEWORD(2, 2);
WSADATA wsaData;
if (WSAStartup(wVersionRequested, &wsaData) != 0) return 0;
int nAdapter = 0;
do
{
char szHostname[256];
if ( gethostname(szHostname, sizeof(szHostname)) ) break;
HOSTENT* pHostEnt = gethostbyname(szHostname);
if (pHostEnt == NULL) break;
if (pHostEnt->h_length != 4) break;

while ( pHostEnt->h_addr_list[nAdapter] )
{
in_addr address;
CopyMemory(&address.S_un.S_addr, pHostEnt->h_addr_list[nAdapter], pHostEnt->h_length);
*(lpIP + nAdapter) = address.S_un.S_addr;

if ( ++nAdapter >= 16 ) break;
}
} while(0);
WSACleanup();
return nAdapter;
}

[xdsh00]

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