API view IP address and Subnet

The main API getnetworkparams () and getadaptersinfo () functions enumerate all network adapters in windows, print the IP, gateway, and Mac, and convert the MAC address from hex to string.

/*
Add to project
Iphlpapi. Lib
File
*/

# Include <windows. h>
# Include <iphlpapi. h>
# Include <stdio. h>
# Include <time. h>

 

Void _ fastcall enumadapterinfo ()
{
// Obtain the address of the local network device

DWORD err;

Pfixed_info pfixedinfo;
DWORD fixedinfosize = 0;

Pip_adapter_info padapterinfo, padapt;
DWORD adapterinfosize;
Pip_addr_string paddrstr;

String pstrip = "";
String pstrgateway = "";
String pstrmac = "";

//
// Get the main IP configuration information for this machine using a fixed_info Structure
//
If (ERR = getnetworkparams (null, & fixedinfosize ))! = 0)
{
If (Err! = Error_buffer_overflow)
{
// Printf ("getnetworkparams sizing failed with error % d/N", err );
Return;
}
}

// Allocate memory from sizing information
If (pfixedinfo = (pfixed_info) globalalloc (gptr, fixedinfosize) = NULL)
{
// Printf ("Memory Allocation Error/N ");
Return;
}

Adapterinfosize = 0;

If (ERR = getadaptersinfo (null, & adapterinfosize ))! = 0)
{
If (Err! = Error_buffer_overflow)
{
// Printf ("getadaptersinfo sizing failed with error % d/N", err );
Return;
}
}

If (padapterinfo = (pip_adapter_info) globalalloc (gptr, adapterinfosize) = NULL)
{
// Printf ("Memory Allocation Error/N ");
Return;
}

// Get actual adapter Information
If (ERR = getadaptersinfo (padapterinfo, & adapterinfosize ))! = 0)
{
// Printf ("getadaptersinfo failed with error % d/N", err );
Return;
}

While (padapterinfo! = NULL)
{
Try
{
// Obtain the IP address and gateway
String IP = padapterinfo-> ipaddresslist. IPaddress. String;
String gateway = padapterinfo-> gatewaylist. IPaddress. String;

//-----------------------------------------
// Convert mac from hex
// Convert hex Mac to string Mac
String Strmac = "";

Char hexmac [mac_length];
Memset (hexmac, 0, mac_length );
// Obtain Mac
Memcpy (hexmac, padapterinfo-> address, mac_length );

// Get the length
Int length = strlen (hexmac );
// Temporary storage Mac
Char Buf [16];
// Cyclically Convert hex to Char
For (INT I = 0; I <length; I ++)
{
Sprintf (BUF, "% 2.2x", hexmac [I]);
If (Strmac. Length ()> 0)
{
Strmac = Strmac + "-";
}
// Add the corresponding Char to the Mac string
Strmac = Strmac + String (BUF [6]);
Strmac = Strmac + String (BUF [7]);
}
// Convert to uppercase
Pstrmac = Strmac. uppercase ();

//-----------------------------------------
// Obtain the IP address
Pstrip = IP;

//-----------------------------------------
// Obtain the Gateway
Pstrgateway = gateway;

Printf ("IP: % s \ n", IP. t_str ());
Printf ("Mac: % s \ n", pstrmac. t_str ());
Printf ("Gateway: % s \ n", pstrgateway. t_str ());
Printf ("------------------ \ n ");

}
Catch (...)
{
}

// No corresponding device found to traverse the next Device
Padapterinfo = padapterinfo-> next;
}
}

Q group 236201801 Discussion

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