Messages in this thread |  | | | Date | Wed, 28 Oct 1998 13:27:55 -0500 (EST) | | From | Alexander Viro <> | | Subject | [RFC] Is sendmsg without data but with cmsg OK? |
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Alan, the current code in net/af_unix.c silently discards messages with zero length of data part, even if they do contain cmsg's. Does something terrrible a-la POSIX require such behaviour? If it doesn't I have a patch for you ;-/ I think that current behaviour is wrong, because a) if all we are going to do is to pass some descriptors, well, sending some dummy data seems klugy. b) even if such messages should be discarded it's not too nice to discard them silently. c) discarding such beasts for SOCK_STREAM and allowing them for SOCK_DGRAM sounds wrong. Cheers, Al -- There are no "civil aviation for dummies" books out there and most of you would probably be scared and spend a lot of your time looking up if there was one. :-)
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