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Cygwin: AF_UNIX: SCM_RIGHTS: support tape descriptors

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Untested.
This commit is contained in:
Ken Brown 2021-01-13 10:30:49 -05:00
parent d262fdde0d
commit 852e494f93
2 changed files with 23 additions and 9 deletions

4
winsup/cygwin/fhandler_socket_unix.cc

@ -2034,8 +2034,8 @@ fhandler_socket_unix::serialize (int fd)
case DEV_SD_MAJOR:
case DEV_SD1_MAJOR ... DEV_SD7_MAJOR:
case DEV_SD_HIGHPART_START ... DEV_SD_HIGHPART_END:
break;
case DEV_TAPE_MAJOR:
break;
case DEV_SERIAL_MAJOR:
set_errno (EOPNOTSUPP);
goto out;
@ -2137,8 +2137,8 @@ fhandler_socket_unix::deserialize (void *bufp)
case DEV_SD_MAJOR:
case DEV_SD1_MAJOR ... DEV_SD7_MAJOR:
case DEV_SD_HIGHPART_START ... DEV_SD_HIGHPART_END:
break;
case DEV_TAPE_MAJOR:
break;
case DEV_SERIAL_MAJOR:
set_errno (EOPNOTSUPP);
return -1;

28
winsup/cygwin/fhandler_tape.cc

@ -1469,31 +1469,45 @@ fhandler_dev_tape::fstat (struct stat *buf)
}
int
fhandler_dev_tape::dup (fhandler_base *child, int flags, DWORD)
fhandler_dev_tape::dup (fhandler_base *child, int flags, DWORD src_pid)
{
HANDLE src_proc = GetCurrentProcess ();
if (src_pid && !(src_proc = OpenProcess (PROCESS_DUP_HANDLE, false, src_pid)))
{
debug_printf ("can't open source process %d, %E", src_pid);
return -1;
}
lock (-1);
fhandler_dev_tape *fh = (fhandler_dev_tape *) child;
if (!DuplicateHandle (GetCurrentProcess (), mt_mtx,
if (!DuplicateHandle (src_proc, mt_mtx,
GetCurrentProcess (), &fh->mt_mtx,
0, TRUE, DUPLICATE_SAME_ACCESS))
{
debug_printf ("dup(%s) failed, mutex handle %p, %E",
get_name (), mt_mtx);
__seterrno ();
return unlock (-1);
goto err;
}
fh->ov.hEvent = NULL;
if (ov.hEvent &&
!DuplicateHandle (GetCurrentProcess (), ov.hEvent,
!DuplicateHandle (src_proc, ov.hEvent,
GetCurrentProcess (), &fh->ov.hEvent,
0, TRUE, DUPLICATE_SAME_ACCESS))
{
debug_printf ("dup(%s) failed, event handle %p, %E",
get_name (), ov.hEvent);
__seterrno ();
return unlock (-1);
goto err_close_mt_mtx;
}
if (src_proc != GetCurrentProcess ())
CloseHandle (src_proc);
return unlock (fhandler_dev_raw::dup (child, flags));
err_close_mt_mtx:
CloseHandle (fh->mt_mtx);
err:
__seterrno ();
if (src_proc != GetCurrentProcess ())
CloseHandle (src_proc);
return unlock (-1);
}
void