Re: Problem with GetIpAddrTable for ADHOC connection

From:

"AliR" <AliR@online.nospam>

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 25 Aug 2006 11:20:13 -0500

Message-ID:

<44ef23a6$0$15196$a8266bb1@reader.corenews.com>

Are you trying to get the local ip?

CString QueryLocalIPAddress()
{
   WORD wVersionRequested;
   WSADATA wsaData;
   char name[255];
   CString IP;
   PHOSTENT hostinfo;
   wVersionRequested = MAKEWORD(2,0);

   if (WSAStartup(wVersionRequested, &wsaData)==0)
   {
      if(gethostname(name, sizeof(name))==0)
      {
         if((hostinfo=gethostbyname(name)) != NULL)
         {
            IP = inet_ntoa(*(struct in_addr*)* hostinfo->h_addr_list);
         }
      }

      WSACleanup();
   }

   return (IP);
}

AliR.

"mathieu" <mathieu@discussions.microsoft.com> wrote in message
news:FFF6487A-571D-463B-9A4C-5AD178C3A1C8@microsoft.com...

With wlanapi.h I connect automatically a PC and a embedded systems which

have

a wireless connection. The 2 systems are connected in adhoc and the IP
address is static. After I want to get the IP adress of the embedded

systems.

So I use GetIpAddrTable to get the address, but it doesn't work. In
MIB_IPADDRROW table it finds 2 entries which are fill with crap. I want to
get 192.168.0.1 and it gives me something like 013542.

Does somebody have an idea to resolve my problem?

Thank you

Mathieu

Code :

PMIB_IPADDRTABLE pIPAddrTable;
DWORD dwSize = 0;

pIPAddrTable = (MIB_IPADDRTABLE*) malloc( sizeof( MIB_IPADDRTABLE) );

// Make an initial call to GetIpAddrTable to get the
// necessary size into the dwSize variable
if (GetIpAddrTable(pIPAddrTable, &dwSize, 0) == ERROR_INSUFFICIENT_BUFFER)

{

GlobalFree( pIPAddrTable );
pIPAddrTable = (MIB_IPADDRTABLE *) malloc ( dwSize );
}