On May 5 14:34, Corinna Vinschen wrote: > Only, starting with Windows Vista, getsockopt suddenly returned with > optlen set to 1, which is sizeof(BOOLEAN), the boolean type used by the > underlying kernel. And this has never been fixed again. > > Cygwin already handles this problem by converting the value to a > sizeof(int) value and changing optlen accordingly, but only for the > socket options SOL_SOCKET/SO_KEEPALIVE and SOL_SOCKET/SO_DONTROUTE. > > I will fix that at one point, but I have to dig into that a bit more to > see which socket options have to be special-cased, or if this > special-casing can be radically simplified somehow. Special-casing > dozens of socket options just to tweak the return type isn't exactly > fun.
Funny enough, of all BSD/Linux-compatible options, only three seem to be affected at all, SOL_SOCKET/SO_KEEPALIVE, SOL_SOCKET/SO_DONTROUTE, and IPPROTO_TCP/TCP_NODELAY. I applied a patch which is supposed to fix this problem, and I just generated a new developer snapshot which is, as usual, available on http://cygwin.com/snapshots/ Please give it a try. Thanks, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat
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