Wouldn't setsockopt(socket.SOL_ALG, socket.ALG_SET_AEAD_AUTHSIZE, None, taglen)
be more consistent? --Guido (mobile) On Aug 21, 2016 5:40 AM, "Christian Heimes" <christ...@python.org> wrote: > Hi, > > the socket.setsockopt(level, optname, value) method has two calling > variants. When it is called with a buffer-like object as value, it calls > the C API function setsockopt() with optval=buffer.buf and > optlen=buffer.len. When value is an integer, setsockopt() packs it as > int32 and sends it with optlen=4. > > --- > # example.py > import socket > sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) > sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, > b'\x00\x00\x00\x00') > sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) > --- > > $ strace -e setsockopt ./python example.py > setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [0], 4) = 0 > setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 > > > For AF_ALG (Linux Kernel crypto) I need a way to call the C API function > setsockopt() with optval=NULL and optlen as any arbitrary number. I have > been playing with multiple ideas. So far I liked the idea of > value=(None, int) most. > > setsockopt(socket.SOL_ALG, socket.ALG_SET_AEAD_AUTHSIZE, (None, taglen)) > > What do you think? > > Christian > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: https://mail.python.org/mailman/options/python-dev/ > guido%40python.org >
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