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On 12/08/2009 13:54, Jon TURNEY wrote:Hmmm... but if it's really the size of the sockname argument which is causing the accept() to fail, this would be a bug in cygwin's accept() implementation, as it's supposed to truncate the data written to the sockname, rather than fail if it won't fit [1]. If that actually is the case, since we don't actually use the peer address here, the code as stands is correct (if a little odd).
I suppose I need to write a small test case to look at this...
[1] http://www.opengroup.org/onlinepubs/009695399/functions/accept.html
A couple of small programs which hopefully demonstrate this problem.
(As is, the connection fails, but uncommenting the alternate definition of cliaddr in listener.c allows it to work)
I'd hazard a guess that perhaps this is because the underlying winsock accept() doesn't have this truncate behaviour and considers a too-small address_len an error.
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