From 57636446c36f9f7ae3121dee57731429e49a1a06 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Mon, 18 Jun 2018 09:16:52 +0000
Subject: pty client interfaces: pty_xquery(): added NT_PTY_CONTEXT_INFORMATION
 support.

---
 include/ntapi/nt_tty.h     |  8 +++++
 src/pty/ntapi_pty_xquery.c | 73 ++++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 78 insertions(+), 3 deletions(-)

diff --git a/include/ntapi/nt_tty.h b/include/ntapi/nt_tty.h
index b574ce2..38a176d 100644
--- a/include/ntapi/nt_tty.h
+++ b/include/ntapi/nt_tty.h
@@ -274,6 +274,14 @@ typedef struct __attr_ptr_size_aligned__ _nt_pty_fd_info {
 } nt_pty_fd_info;
 
 
+typedef struct __attr_ptr_size_aligned__ _nt_pty_context_info {
+	void *		hpty;
+	nt_guid		guid;
+	nt_luid		luid;
+	uintptr_t	ctxarg[4];
+} nt_pty_context_info;
+
+
 typedef struct __attr_ptr_size_aligned__ _nt_pty_io_info {
 	void *		hpty;
 	void *		hevent;
diff --git a/src/pty/ntapi_pty_xquery.c b/src/pty/ntapi_pty_xquery.c
index 075d9b1..bc28061 100644
--- a/src/pty/ntapi_pty_xquery.c
+++ b/src/pty/ntapi_pty_xquery.c
@@ -48,9 +48,6 @@ static int32_t __pty_xquery_inherit_info(
 	else if (msg.data.ttyinfo.status)
 		return msg.data.ttyinfo.status;
 
-	iosb->info   = msg.data.ctlinfo.iosb.info;
-	iosb->status = msg.data.ctlinfo.iosb.status;
-
 	inherit            = (nt_pty_inherit_info *)pty_info;
 	inherit->hpty      = msg.data.ctlinfo.hpty;
 	inherit->luid.low  = msg.data.ctlinfo.luid.low;
@@ -65,6 +62,70 @@ static int32_t __pty_xquery_inherit_info(
 		&inherit->guid,
 		&msg.data.ctlinfo.guid);
 
+	iosb->status = NT_STATUS_SUCCESS;
+	iosb->info   = sizeof(*inherit);
+
+	return NT_STATUS_SUCCESS;
+}
+
+
+static int32_t __pty_xquery_context_info(
+	void *			hport,
+	nt_io_status_block *	iosb,
+	void *			pty_info,
+	uint32_t		pty_info_length,
+	nt_pty_client_info *	pty_client_info)
+{
+	int32_t			status;
+	nt_pty_sigctl_msg	msg;
+	nt_pty_context_info * 	context;
+
+	if (pty_info_length < sizeof(nt_pty_inherit_info))
+		return NT_STATUS_INVALID_PARAMETER;
+
+	__ntapi->tt_aligned_block_memset(
+		&msg,0,sizeof(msg));
+
+	msg.header.msg_type        = NT_LPC_NEW_MESSAGE;
+	msg.header.data_size       = sizeof(msg.data);
+	msg.header.msg_size        = sizeof(msg);
+	msg.data.ttyinfo.opcode    = NT_TTY_PTY_QUERY;
+
+	msg.data.ctlinfo.hpty      = NT_INVALID_HANDLE_VALUE;
+	msg.data.ctlinfo.ctlcode   = NT_PTY_CONTEXT_INFORMATION;
+
+	msg.data.ctlinfo.ctxarg[0] = pty_client_info->any[0];
+	msg.data.ctlinfo.ctxarg[1] = pty_client_info->any[1];
+	msg.data.ctlinfo.ctxarg[2] = pty_client_info->any[2];
+	msg.data.ctlinfo.ctxarg[3] = pty_client_info->any[3];
+
+	__ntapi->tt_guid_copy(
+		&msg.data.ctlinfo.guid,
+		&(nt_guid)TTY_PTS_GUID);
+
+	if ((status = __ntapi->zw_request_wait_reply_port(hport,&msg,&msg)))
+		return status;
+
+	else if (msg.data.ttyinfo.status)
+		return msg.data.ttyinfo.status;
+
+	context            = (nt_pty_context_info *)pty_info;
+	context->hpty      = msg.data.ctlinfo.hpty;
+	context->luid.low  = msg.data.ctlinfo.luid.low;
+	context->luid.high = msg.data.ctlinfo.luid.high;
+
+	context->ctxarg[0] = msg.data.ctlinfo.ctxarg[0];
+	context->ctxarg[1] = msg.data.ctlinfo.ctxarg[1];
+	context->ctxarg[2] = msg.data.ctlinfo.ctxarg[2];
+	context->ctxarg[3] = msg.data.ctlinfo.ctxarg[3];
+
+	__ntapi->tt_guid_copy(
+		&context->guid,
+		&msg.data.ctlinfo.guid);
+
+	iosb->status = NT_STATUS_SUCCESS;
+	iosb->info   = sizeof(*context);
+
 	return NT_STATUS_SUCCESS;
 }
 
@@ -83,5 +144,11 @@ int32_t	__stdcall __ntapi_pty_xquery(
 			pty_info_length,
 			pty_client_info);
 
+	else if (pty_info_class == NT_PTY_CONTEXT_INFORMATION)
+		return __pty_xquery_context_info(
+			hport,iosb,pty_info,
+			pty_info_length,
+			pty_client_info);
+
 	return NT_STATUS_WRONG_COMPARTMENT;
 }
-- 
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