Thank u very much! it works like a dream.
----- Original Message -----
Sent: Tuesday, July 01, 2003 3:54
PM
Subject: RE: [WinPcap-users] retreiving
adapter info
I just
knew you were going to ask that question. ;>)
I
omitted that part of the code so it wouldn't be confusing and most people
don't care about Windows 95/98.
Since
you do, here is the version that will work on any version of windows supported
by WinPCap.
int
main(int argc, char* argv[])
{
DWORD dwVersion;
DWORD
dwWindowsMajorVersion;
unsigned int i;
long lRC; // Long
return code.
WCHAR AdapterName[8192]; // string that contains a
list of the network adapters
WCHAR *temp, *temp1;
char
AdapterList[MAX_NUM_ADAPTERS][1024];
char TempAsciiString[8192];
//ascii strings
(win95)
char AdapterNamea[8192]; // string that contains a list of
the network adapters
char *tempa,*temp1a;
unsigned
int AdapterNum = 0;
ULONG
AdapterLength;
memset(AdapterList, 0, (MAX_NUM_ADAPTERS * 1024)
);
memset(AdapterName, 0, sizeof(AdapterName)
);
memset(AdapterNamea, 0, sizeof(AdapterNamea)
);
memset(TempAsciiString, 0, sizeof(TempAsciiString)
);
// obtain the name of the adapters installed on this
machine
AdapterLength=4096;
printf("\n===============================================\n");
printf("Valid
Packet Sniffing Adapters:\n");
i=0;
// the data returned by PacketGetAdapterNames is
different in Win95/98
// and WinNT/2000/XP.
// We have to
check the OS on which we are
running
dwVersion=GetVersion();
dwWindowsMajorVersion
= (DWORD)(LOBYTE(LOWORD(dwVersion)));
if (!(dwVersion >=
0x80000000 && dwWindowsMajorVersion >= 4))
{ //
Windows NT/2000/XP
if(PacketGetAdapterNames((char
*)AdapterName, &AdapterLength) ==
FALSE)
{
printf("Error: Unable to retrieve
the list of the
adapters!\n");
exit(-1);
}
//
The string returned is a multi-byte string.
temp =
AdapterName;
temp1 = AdapterName;
while
(true)
{
if( (*temp1 == '\0') &&
(*(temp1+1) == '\0') )
{
//
We're at the end of the
string.
break;
}
if
(*(temp1+1) == '\0')
{
//
Temp1 points to the end of the string.
nRC =
WideCharToMultiByte(CP_ACP, 0, temp, -1,
TempAsciiString,
sizeof(TempAsciiString), 0,
0);
if (nRC >
0)
{
memcpy(AdapterList[i],
TempAsciiString, (temp1 -
temp)+1);
}
temp =
temp1+2;
i++;
}
temp1++;
}
AdapterNum=i;
for (i = 0; i < AdapterNum;
i++)
{
printf("%d- %s\n", i+1,
AdapterList[i]);
}
printf("\n");
}
else {
//windows
95/98
if(PacketGetAdapterNames(AdapterNamea,&AdapterLength)==FALSE)
{
printf("Error:
Unable to retrieve the list of the
adapters!\n");
exit(-1);
}
tempa
= AdapterNamea;
temp1a = AdapterNamea;
while
(true)
{
if( (*temp1a == '\0') &&
(*(temp1a+1) == '\0') )
{
//
We're at the end of the
string.
break;
}
if
(*(temp1a+1) == '\0')
{
//
Temp1 points to the end of the
string.
memcpy(AdapterList[i], tempa, (temp1a -
tempa)+1);
tempa =
temp1a+2;
i++;
}
temp1a++;
}
AdapterNum=i;
for (i = 0; i < AdapterNum;
i++)
{
printf("%d- %s\n", i+1,
AdapterList[i]);
}
printf("\n");
}
}
Thank you,
David Barnish
Senior Software
Engineer
Research And
Development
[EMAIL PROTECTED]
Spanlink
Communications
7125 Northland Terrace, Suite 100
Brooklyn Park,
Minnesota 55428
(763) 971-2000
It works, but I have a question: can this code
also be used under Win95 or 98? I know there is a difference between them
and NT or XP. And what do I have to change to make it work under both
systems?
Thank U
----- Original Message -----
Sent: Monday, June 30, 2003 4:03
PM
Subject: RE: [WinPcap-users]
retreiving adapter info
Try
this...
unsigned int
i;
int nRC;
WCHAR AdapterName[8192]; // string
that contains a list of the network adapters
WCHAR *temp,
*temp1;
char AdapterList[MAX_NUM_ADAPTERS][1024];
char TempAsciiString[8192];
unsigned
int AdapterNum =
0;
ULONG AdapterLength;
memset(AdapterList, 0, (MAX_NUM_ADAPTERS * 1024)
);
memset(AdapterName, 0, sizeof(AdapterName)
);
memset(TempAsciiString, 0, sizeof(TempAsciiString)
);
// obtain the name of the adapters installed on this
machine
AdapterLength=4096;
i=0;
if(PacketGetAdapterNames((char *)AdapterName,
&AdapterLength) == FALSE)
{
printf("Error:
Unable to retrieve the list of the
adapters!\n");
exit(-1);
}
// The string returned is a multi-byte string on WinNT or
later versions of Windows.
temp = AdapterName;
temp1 =
AdapterName;
while (true)
{
if( (*temp1
== '\0') && (*(temp1+1) == '\0')
)
{
// We're at the end of the
string.
break;
}
if
(*(temp1+1) == '\0')
{
// Temp1
points to the end of the string.
nRC =
WideCharToMultiByte(CP_ACP, 0, temp, -1,
TempAsciiString,
sizeof(TempAsciiString), 0,
0);
if (nRC >
0)
{
memcpy(AdapterList[i],
TempAsciiString, (temp1 -
temp)+1);
}
temp =
temp1+2;
i++;
}
temp1++;
}
AdapterNum=i;
for (i = 0; i < AdapterNum;
i++)
{
printf("%d- %s\n", i+1,
AdapterList[i]);
}
printf("\n");
David Barnish
-----Original Message-----
From: Annie Deroo
[mailto:[EMAIL PROTECTED]
Sent: Sunday, June 29, 2003
8:21 AM
To: [EMAIL PROTECTED]
Subject:
[WinPcap-users] retreiving adapter info
How can I get a list of my adapters? I know
the function PacketGetAdapterNames gives me all the adapters on my
computers, but how do I show information about them in a Visual C++
program? Functions like wprintf(L"\n%d- %s\n",i+1,AdapterList[i])
(output = 7) and printf("\n%d- %s\n",i+1,AdapterList[i]) (error when
running) can't be used to put a CString in a list or in a messagebox!
The compiler says: left of '.SymbolicLink' must have class/struct/union
type, when I use the SymbolicLink part of the adapters. In my program I
want to show info about the available adapters in a list and let the
user select one. I'm sure this is done before in Visual C++, so if
somebody knows how I could do that or knows where I can find code that
does that, let me know. Thank
U
