Bug#47921: Getsockopt -- Operation Not Supported

[Brent Fulgham <brent.fulgham@xpsystems.com>]

Package: libc0.2-dev
Version: 2.1.2-0pre12

Using a native-compiled version of apt, it fails while attempting
to make an http connection to the debian archive server.  The
failure occurs at this statement:

    unsigned int Err;
    unsigned int Len = sizeof(Err);
    if (getsockopt(Fd,SOL_SOCKET,SO_ERROR,&Err,&Len) != 0)
        return _error->Errno("getsockopt","Failed");

Where SOL_SOCKET and SO_ERROR are as defined in the socket.h header
file, and Fd is the socket descriptor (an int).

Failure is "Operation not supported".

=================================================================
(The routine in question)
// DoConnect - Attempt a connect operation				
// ---------------------------------------------------------------------
/* This helper function attempts a connection to a single address. */
static bool DoConnect(struct addrinfo *Addr,string Host,
		      unsigned long TimeOut,int &Fd,pkgAcqMethod *Owner)
{
   // Show a status indicator
   char Name[NI_MAXHOST];
   Name[0] = 0;
   getnameinfo(Addr->ai_addr,Addr->ai_addrlen,
	       Name,sizeof(Name),0,0,NI_NUMERICHOST);
   Owner->Status("Connecting to %s (%s)",Host.c_str(),Name);
   
   // Get a socket
   if ((Fd = socket(Addr->ai_family,Addr->ai_socktype,
		    Addr->ai_protocol)) < 0)
      return _error->Errno("socket","Could not create a socket");
   
   SetNonBlock(Fd,true);
   if (connect(Fd,Addr->ai_addr,Addr->ai_addrlen) < 0 &&
       errno != EINPROGRESS)
      return _error->Errno("connect","Cannot initiate the connection "
			   "to %s (%s).",Host.c_str(),Name);
   
   /* This implements a timeout for connect by opening the connection
      nonblocking */
   if (WaitFd(Fd,true,TimeOut) == false)
      return _error->Error("Could not connect to %s (%s), "
			   "connection timed out",Host.c_str(),Name);
   
   // Check the socket for an error condition
   unsigned int Err;
   unsigned int Len = sizeof(Err);
   if (getsockopt(Fd,SOL_SOCKET,SO_ERROR,&Err,&Len) != 0)
      return _error->Errno("getsockopt","Failed");
   
   if (Err != 0)
      return _error->Error("Could not connect to %s
(%s).",Host.c_str(),Name);

   return true;
}