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* net.cc (cygwin_getsockopt): Rearrange code slightly and handle 

TCP_NODELAY just like SO_KEEPALIVE and SO_DONTROUTE.
This commit is contained in:
Corinna Vinschen 2014-05-05 15:18:17 +00:00
parent 7e9b678464
commit 67797a9560
3 changed files with 29 additions and 24 deletions
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5
winsup/cygwin/ChangeLog
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@ -1,3 +1,8 @@
2014-05-05 Corinna Vinschen <corinna@vinschen.de>
* net.cc (cygwin_getsockopt): Rearrange code slightly and handle
TCP_NODELAY just like SO_KEEPALIVE and SO_DONTROUTE.
2014-05-03 Christopher Faylor <me.cygwin2014@cgf.cx> 2014-05-03 Christopher Faylor <me.cygwin2014@cgf.cx>
* spawn.cc (av::setup): Eat trailing whitespace on #! script. * spawn.cc (av::setup): Eat trailing whitespace on #! script.

27
winsup/cygwin/net.cc
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@ -923,33 +923,28 @@ cygwin_getsockopt (int fd, int level, int optname, void *optval,
(int *) optlen); (int *) optlen);
if (res == SOCKET_ERROR) if (res == SOCKET_ERROR)
set_winsock_errno (); set_winsock_errno ();
else if (level == SOL_SOCKET) else if (level == SOL_SOCKET && optname == SO_ERROR)
{
switch (optname)
{
case SO_ERROR:
{ {
int *e = (int *) optval; int *e = (int *) optval;
debug_printf ("WinSock SO_ERROR = %d", *e); debug_printf ("WinSock SO_ERROR = %d", *e);
*e = find_winsock_errno (*e); *e = find_winsock_errno (*e);
} }
break; else if (*optlen == 1)
case SO_KEEPALIVE: {
case SO_DONTROUTE: /* Regression in Vista and later: instead of a 4 byte BOOL value,
/* Regression in Vista and later: instead of a 4 byte BOOL a 1 byte BOOLEAN value is returned, in contrast to older systems
value, a 1 byte BOOLEAN value is returned, in contrast and the documentation. Since an int type is expected by the
to older systems and the documentation. Since an int calling application, we convert the result here. For some reason
type is expected by the calling application, we convert only three BSD-compatible socket options seem to be affected. */
the result here. */ if ((level == SOL_SOCKET
if (*optlen == 1) && (optname == SO_KEEPALIVE || optname == SO_DONTROUTE))
|| (level == IPPROTO_TCP && optname == TCP_NODELAY))
{ {
BOOLEAN *in = (BOOLEAN *) optval; BOOLEAN *in = (BOOLEAN *) optval;
int *out = (int *) optval; int *out = (int *) optval;
*out = *in; *out = *in;
*optlen = 4; *optlen = 4;
} }
break;
}
} }
} }

5
winsup/cygwin/release/1.7.30
View File

@ -34,3 +34,8 @@ Bug Fixes
when calling select on a dup'ed socket after an asynchronous connection when calling select on a dup'ed socket after an asynchronous connection
attempt. attempt.
Fixes: http://cygwin.com/ml/cygwin/2014-04/msg00510.html Fixes: http://cygwin.com/ml/cygwin/2014-04/msg00510.html
- Workaround the problem that getsockopt(IPPROTO_TCP,TCP_NODELAY) returns
the option value as a 1 byte value, while BSD and Linux expect a 4 byte
value.
Fixes: http://cygwin.com/ml/cygwin/2014-04/msg00624.html