RPC and XDR with python
Randall Hopper
aa8vb at vislab.epa.gov
Tue Apr 13 07:11:31 EDT 1999
|Does anybody know where these resource are located.
|python.org has a couple of ref but nothing concrete
|
|It would be better find an example thou
Well, haven't looked for RPC, but XDR is there. Here's a code snip from
something I wrote recently, brutally cut and simplified to highlight how
xdrlib can be used:
-------------- next part --------------
import os # popen
import struct # unpack
import xdrlib # Unpacker
import string # join
#
# Basic example
#
fp = os.popen( "SomeXDRGeneratingTool" )
buffer = fp.read()
fp.close()
unpacker = xdrlib.Unpacker( buffer )
a_double = unpacker.unpack_double()
an_int = unpacker.unpack_int()
a_float = unpacker.unpack_float()
#
# Utility rtn to read an undelimited array
#
def UnpackString( unpacker, str_len ):
""" Unpack an undelimited XDR string with the characters stored as ints
"""
str = string.join(
unpacker.unpack_farray( str_len,
lambda unp=unpacker: chr( unp.unpack_uint() ) ),
'' )
end = string.find( str, "\0" )
if end < 0: end = len( str )
return string.rstrip( str[ 0:end ] )
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