1 files changed, 70 insertions, 0 deletions
diff --git a/src/msq/ntapi_msq_query.c b/src/msq/ntapi_msq_query.c
new file mode 100644
index 0000000..28922ef
--- /dev/null
+++ b/src/msq/ntapi_msq_query.c
@@ -0,0 +1,70 @@
+/********************************************************/
+/*  ntapi: Native API core library                      */
+/*  Copyright (C) 2013--2017  Z. Gilboa                 */
+/*  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  */
+/********************************************************/
+
+#include <psxtypes/psxtypes.h>
+#include <ntapi/nt_file.h>
+#include <ntapi/nt_string.h>
+#include <ntapi/nt_atomic.h>
+#include <ntapi/nt_port.h>
+#include <ntapi/nt_ipc.h>
+#include <ntapi/nt_msq.h>
+#include <ntapi/ntapi.h>
+#include "ntapi_impl.h"
+
+int32_t	__stdcall __ntapi_msq_query(
+	__in	nt_msq_info *		msq,
+	__out	nt_io_status_block *	iosb,
+	__out	void *			msq_info,
+	__in	uint32_t		msq_info_length,
+	__in	int32_t			msq_info_class)
+{
+	int32_t			status;
+	nt_msq_info_msg		msg;
+
+	/* validate */
+	if (!iosb)
+		return NT_STATUS_INVALID_PARAMETER;
+
+	else if (!msq_info)
+		return NT_STATUS_INVALID_PARAMETER;
+
+	else if (msq_info_length < sizeof(msg.data.msqinfo))
+		return NT_STATUS_BUFFER_TOO_SMALL;
+
+	else if (msq_info_class)
+		return NT_STATUS_INVALID_INFO_CLASS;
+
+	/* msg */
+	__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_MSQ_QUERY;
+
+	msg.data.msqinfo.msqkey		= msq->msqkey;
+	msg.data.msqinfo.msqid		= msq->msqid;
+
+	if ((status = __ntapi->zw_request_wait_reply_port(msq->hport,&msg,&msg)))
+		return status;
+	else if (msg.data.ttyinfo.status)
+		return msg.data.ttyinfo.status;
+
+	/* reply */
+	if (msg.header.data_size != sizeof(msg.data))
+		return NT_STATUS_UNEXPECTED_IO_ERROR;
+
+	__ntapi->tt_generic_memcpy(
+		msq_info,
+		&msg.data.msqinfo,
+		sizeof(msg.data.msqinfo));
+
+	iosb->status = NT_STATUS_SUCCESS;
+	iosb->info   = sizeof(msg.data.msqinfo);
+
+	return NT_STATUS_SUCCESS;
+}