Description of problem:

[root@rk-build RPMS]# up2date --get-source sendmail

Fetching all package list for channel: rhel-i386-ws-4-beta...
########################################

Fetching package list for channel: rhel-i386-ws-4-beta...
########################################
fd: <rhn.transports.File instance at 0xf66c738c>

sendmail-8.13.1-2.src.rpm...
Traceback (most recent call last):
  File "/usr/sbin/up2date", line 1249, in ?
    sys.exit(main() or 0)
  File "/usr/sbin/up2date", line 715, in main
    return getPackages(pkgNames, source=1)
  File "/usr/sbin/up2date", line 1066, in getPackages
    onlySource = source)
  File "/usr/share/rhn/up2date_client/up2date.py", line 203, in getPackage
    progressCallback)
  File "/usr/share/rhn/up2date_client/rpcServer.py", line 310, in doCall
    ret = apply(method, args, kwargs)
  File "/usr/share/rhn/up2date_client/repoDirector.py", line 38, in
getPackageSource
    return self.handlers[channel['type']].getPackageSource(channel,
pkg, msgCallback, progressCallback)
  File "/usr/share/rhn/up2date_client/rpmSource.py", line 198, in
getPackageSource
    MsgCallback, progressCallback)
  File "/usr/share/rhn/up2date_client/repoBackends/up2dateRepo.py",
line 182, in getPackageSource
    buffer = self._readFD(fd, filePath)
TypeError: _readFD() takes at least 6 arguments (3 given)
[root@rk-build RPMS]#