Get hostname and ip address of local computer (2)

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Following is a code that gets local machine IP addresses. The advantages over the article by Jeff Lundgren are that my code
recognises ALL IP addresses and is ready for IPv6 😉

char szHostName[128];

if( gethostname(szHostName, 128) == 0 )
{
	// Get host adresses
	struct hostent * pHost;
	int i;

	pHost = gethostbyname(szHostName);

	for( i = 0; pHost!= NULL && pHost->h_addr_list[i]!= NULL; i++ )
 	{
		 CString str;
 		int j;

 		for( j = 0; j < pHost->h_length; j++ )
 		{
			 CString addr;

 			if( j > 0 )
 				str += ".";

 			addr.Format("%u", (unsigned int)((unsigned
		 	char*)pHost->h_addr_list[i])[j]);
			str += addr;
 		}
  		// str now contains one local IP address - do whatever you want to do with it (probably add it to a list)
 	}
}