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* fhandler.cc (fhandler_base::fork_fixup): Protect dup'ed handle and record it

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as non-inheritable for debugging purposes in case there is a subsequent fork or
exec.
* fhandler_tty.cc (fhandler_tty_common::fixup_after_fork): Allow fork_fixup to
call ProtecHandle.
This commit is contained in:
Christopher Faylor
2001-10-06 01:04:24 +00:00
parent 3cf6936e3b
commit a448b8cf34
3 changed files with 19 additions and 10 deletions
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8
winsup/cygwin/ChangeLog
View File

@@ -1,3 +1,11 @@
Fri Oct 5 21:01:14 2001 Christopher Faylor <cgf@cygnus.com>
* fhandler.cc (fhandler_base::fork_fixup): Protect dup'ed handle and
record it as non-inheritable for debugging purposes in case there is a
subsequent fork or exec.
* fhandler_tty.cc (fhandler_tty_common::fixup_after_fork): Allow
fork_fixup to call ProtecHandle.
Fri Oct 5 14:22:47 2001 Christopher Faylor <cgf@cygnus.com>
* path.cc (get_raw_device_number): Correct length arguments for

11
winsup/cygwin/fhandler.cc
View File

@@ -1624,9 +1624,16 @@ fhandler_base::fork_fixup (HANDLE parent, HANDLE &h, const char *name)
{
if (!get_close_on_exec ())
debug_printf ("handle %p already opened", h);
else if (!DuplicateHandle (parent, h, hMainProc, &h, 0, !get_close_on_exec (),
DUPLICATE_SAME_ACCESS))
else if (!DuplicateHandle (parent, h, hMainProc, &h, 0, 0,
DUPLICATE_SAME_ACCESS))
system_printf ("%s - %E, handle %s<%p>", get_name (), name, h);
#ifdef DEBUG
else
{
ProtectHandle1 (h, name);
setclexec_pid (h, 0);
}
#endif
}
void

10
winsup/cygwin/fhandler_tty.cc
View File

@@ -1143,15 +1143,9 @@ fhandler_tty_common::fixup_after_fork (HANDLE parent)
if (ioctl_done_event)
fork_fixup (parent, ioctl_done_event, "ioctl_done_event");
if (output_mutex)
{
fork_fixup (parent, output_mutex, "output_mutex");
ProtectHandle (output_mutex);
}
fork_fixup (parent, output_mutex, "output_mutex");
if (input_mutex)
{
fork_fixup (parent, input_mutex, "input_mutex");
ProtectHandle (input_mutex);
}
fork_fixup (parent, input_mutex, "input_mutex");
if (input_available_event)
fork_fixup (parent, input_available_event, "input_available_event");
fork_fixup (parent, inuse, "inuse");