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Diffstat (limited to 'winsup/cygwin/fhandler_tty.cc')
-rw-r--r--winsup/cygwin/fhandler_tty.cc25
1 files changed, 14 insertions, 11 deletions
diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
index 5016c5a4f..2c7f1e8cd 100644
--- a/winsup/cygwin/fhandler_tty.cc
+++ b/winsup/cygwin/fhandler_tty.cc
@@ -915,9 +915,12 @@ fhandler_tty_slave::read (void *ptr, size_t& len)
}
int
-fhandler_tty_slave::dup (fhandler_base *child)
+fhandler_tty_slave::dup (fhandler_base *child, HANDLE from_proc)
{
fhandler_tty_slave *arch = (fhandler_tty_slave *) archetype;
+ if (!arch) /* Might happen on descriptor passing */
+ return !((fhandler_tty_slave *) child)->open (get_flags (), 0);
+
*(fhandler_tty_slave *) child = *arch;
child->usecount = 0;
arch->usecount++;
@@ -928,7 +931,7 @@ fhandler_tty_slave::dup (fhandler_base *child)
}
int
-fhandler_tty_common::dup (fhandler_base *child)
+fhandler_tty_common::dup (fhandler_base *child, HANDLE from_proc)
{
fhandler_tty_slave *fts = (fhandler_tty_slave *) child;
int errind;
@@ -941,7 +944,7 @@ fhandler_tty_common::dup (fhandler_base *child)
if (output_done_event == NULL)
fts->output_done_event = NULL;
- else if (!DuplicateHandle (hMainProc, output_done_event, hMainProc,
+ else if (!DuplicateHandle (from_proc, output_done_event, hMainProc,
&fts->output_done_event, 0, 1,
DUPLICATE_SAME_ACCESS))
{
@@ -950,7 +953,7 @@ fhandler_tty_common::dup (fhandler_base *child)
}
if (ioctl_request_event == NULL)
fts->ioctl_request_event = NULL;
- else if (!DuplicateHandle (hMainProc, ioctl_request_event, hMainProc,
+ else if (!DuplicateHandle (from_proc, ioctl_request_event, hMainProc,
&fts->ioctl_request_event, 0, 1,
DUPLICATE_SAME_ACCESS))
{
@@ -959,35 +962,35 @@ fhandler_tty_common::dup (fhandler_base *child)
}
if (ioctl_done_event == NULL)
fts->ioctl_done_event = NULL;
- else if (!DuplicateHandle (hMainProc, ioctl_done_event, hMainProc,
+ else if (!DuplicateHandle (from_proc, ioctl_done_event, hMainProc,
&fts->ioctl_done_event, 0, 1,
DUPLICATE_SAME_ACCESS))
{
errind = 3;
goto err;
}
- if (!DuplicateHandle (hMainProc, input_available_event, hMainProc,
+ if (!DuplicateHandle (from_proc, input_available_event, hMainProc,
&fts->input_available_event, 0, 1,
DUPLICATE_SAME_ACCESS))
{
errind = 4;
goto err;
}
- if (!DuplicateHandle (hMainProc, output_mutex, hMainProc,
+ if (!DuplicateHandle (from_proc, output_mutex, hMainProc,
&fts->output_mutex, 0, 1,
DUPLICATE_SAME_ACCESS))
{
errind = 5;
goto err;
}
- if (!DuplicateHandle (hMainProc, input_mutex, hMainProc,
+ if (!DuplicateHandle (from_proc, input_mutex, hMainProc,
&fts->input_mutex, 0, 1,
DUPLICATE_SAME_ACCESS))
{
errind = 6;
goto err;
}
- if (!DuplicateHandle (hMainProc, get_handle (), hMainProc,
+ if (!DuplicateHandle (from_proc, get_handle (), hMainProc,
&nh, 0, 1,
DUPLICATE_SAME_ACCESS))
{
@@ -996,7 +999,7 @@ fhandler_tty_common::dup (fhandler_base *child)
}
fts->set_io_handle (nh);
- if (!DuplicateHandle (hMainProc, get_output_handle (), hMainProc,
+ if (!DuplicateHandle (from_proc, get_output_handle (), hMainProc,
&nh, 0, 1,
DUPLICATE_SAME_ACCESS))
{
@@ -1007,7 +1010,7 @@ fhandler_tty_common::dup (fhandler_base *child)
if (inuse == NULL)
fts->inuse = NULL;
- else if (!DuplicateHandle (hMainProc, inuse, hMainProc,
+ else if (!DuplicateHandle (from_proc, inuse, hMainProc,
&fts->inuse, 0, 1,
DUPLICATE_SAME_ACCESS))
{