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Cygwin: AF_UNIX: fix dup 

Reorder so fhandler_socket::dup is called first.  Add missing
duplication of backing_file_handle.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2018-03-10 21:12:27 +01:00
parent 7b1028974b
commit 4f1ee1a3e7
1 changed files with 15 additions and 1 deletions
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16
winsup/cygwin/fhandler_socket_unix.cc
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@ -1029,7 +1029,21 @@ fhandler_socket_unix::~fhandler_socket_unix ()
int
fhandler_socket_unix::dup (fhandler_base *child, int flags)
{
if (fhandler_socket::dup (child, flags))
{
__seterrno ();
return -1;
}
fhandler_socket_unix *fhs = (fhandler_socket_unix *) child;
if (backing_file_handle && backing_file_handle != INVALID_HANDLE_VALUE
&& !DuplicateHandle (GetCurrentProcess (), backing_file_handle,
GetCurrentProcess (), &fhs->backing_file_handle,
0, TRUE, DUPLICATE_SAME_ACCESS))
{
__seterrno ();
fhs->close ();
return -1;
}
fhs->set_sun_path (get_sun_path ());
fhs->set_peer_sun_path (get_peer_sun_path ());
InitializeSRWLock (&fhs->conn_lock);
@ -1038,7 +1052,7 @@ fhandler_socket_unix::dup (fhandler_base *child, int flags)
fhs->connect_wait_thr = NULL;
fhs->cwt_termination_evt = NULL;
fhs->cwt_param = NULL;
return fhandler_socket::dup (child, flags);
return 0;
}
/* Waiter thread method. Here we wait for a pipe instance to become