1 files changed, 130 insertions, 0 deletions
diff --git a/src/pty/ntapi_pty_io.c b/src/pty/ntapi_pty_io.c
new file mode 100644
index 0000000..f110371
--- /dev/null
+++ b/src/pty/ntapi_pty_io.c
@@ -0,0 +1,130 @@
+/********************************************************/
+/*  ntapi: Native API core library                      */
+/*  Copyright (C) 2013,2014,2015  Z. Gilboa             */
+/*  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  */
+/********************************************************/
+
+#include <psxtypes/psxtypes.h>
+#include <ntapi/nt_port.h>
+#include <ntapi/nt_tty.h>
+#include <ntapi/ntapi.h>
+#include "ntapi_impl.h"
+#include "ntapi_pty.h"
+
+static int32_t __stdcall __ntapi_pty_read_write(
+	nt_pty *		pty,
+	void *			hevent,
+	nt_io_apc_routine *	apc_routine,
+	void *			apc_context,
+	nt_iosb *		iosb,
+	void *			buffer,
+	size_t			nbytes,
+	nt_large_integer *	offset,
+	uint32_t *		key,
+	int32_t			opcode)
+{
+	int32_t		status;
+	nt_pty_io_msg	msg;
+	off_t		soffset;
+	int		mode;
+
+	mode = opcode - NT_TTY_PTY_READ;
+	soffset = mode * pty->section_size / 2;
+
+	if (offset && offset->quad)
+		return NT_STATUS_INVALID_PARAMETER;
+
+	else if (__ntapi->tt_sync_block_lock(&pty->sync[mode],1,0,0))
+		return NT_STATUS_RESOURCE_NOT_OWNED;
+
+	nbytes = nbytes <= pty->section_size / 2
+		? nbytes
+		: pty->section_size / 2;
+
+	__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		= opcode;
+
+	msg.data.ioinfo.hpty		= pty->hpty;
+	msg.data.ioinfo.hevent		= hevent;
+	msg.data.ioinfo.apc_routine	= apc_routine;
+	msg.data.ioinfo.apc_context	= apc_context;
+	msg.data.ioinfo.key		= key ? *key : 0;
+
+	msg.data.ioinfo.luid.high	= pty->luid.high;
+	msg.data.ioinfo.luid.low	= pty->luid.low;
+
+	msg.data.ioinfo.riosb		= iosb;
+	msg.data.ioinfo.raddr		= buffer;
+
+	__ntapi->tt_guid_copy(
+		&msg.data.ioinfo.guid,
+		&pty->guid);
+
+	msg.data.ioinfo.nbytes		= nbytes;
+	msg.data.ioinfo.offset		= soffset;
+
+	if (mode == __PTY_WRITE)
+		__ntapi->tt_generic_memcpy(
+			(char *)pty->section_addr + soffset,
+			(char *)buffer,
+			nbytes);
+
+	if ((status = __ntapi->zw_request_wait_reply_port(pty->hport,&msg,&msg)))
+		return status;
+	else if (msg.data.ttyinfo.status)
+		return msg.data.ttyinfo.status;
+
+	if (mode == __PTY_READ)
+		__ntapi->tt_generic_memcpy(
+			(char *)buffer,
+			(char *)pty->section_addr + soffset,
+			msg.data.ioinfo.iosb.info);
+
+	iosb->info   = msg.data.ioinfo.iosb.info;
+	iosb->status = msg.data.ioinfo.iosb.status;
+
+	return NT_STATUS_SUCCESS;
+}
+
+
+int32_t	__stdcall __ntapi_pty_read(
+	__in	nt_pty *		pty,
+	__in	void *			hevent		__optional,
+	__in	nt_io_apc_routine *	apc_routine	__optional,
+	__in	void *			apc_context	__optional,
+	__out	nt_iosb *		iosb,
+	__out	void *			buffer,
+	__in	uint32_t		nbytes,
+	__in	nt_large_integer *	offset		__optional,
+	__in	uint32_t *		key		__optional)
+{
+	return __ntapi_pty_read_write(
+		pty,
+		hevent,apc_routine,apc_context,
+		iosb,buffer,nbytes,offset,key,
+		NT_TTY_PTY_READ);
+}
+
+
+int32_t __stdcall __ntapi_pty_write(
+	__in	nt_pty *		pty,
+	__in 	void *			hevent		__optional,
+	__in	nt_io_apc_routine *	apc_routine	__optional,
+	__in	void * 			apc_context	__optional,
+	__out	nt_iosb *		iosb,
+	__in	void * 			buffer,
+	__in	uint32_t		nbytes,
+	__in	nt_large_integer *	offset		__optional,
+	__in	uint32_t *		key		__optional)
+{
+	return __ntapi_pty_read_write(
+		pty,
+		hevent,apc_routine,apc_context,
+		iosb,buffer,nbytes,offset,key,
+		NT_TTY_PTY_WRITE);
+}