From 538c8a5109b56d1d0a26631fa93913341214501d Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Tue, 5 Jul 2016 17:00:06 -0400
Subject: pty layer: added ptyc_alloc_pty(), ptyc_free_pty().

---
 src/driver/ptyc_amain.c          |  3 ++
 src/driver/ptyc_driver_ctx.c     |  1 +
 src/internal/ptycon_ioctl_impl.h | 22 ++++++++++
 src/pty/ptyc_pty_ctx.c           | 92 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 118 insertions(+)
 create mode 100644 src/internal/ptycon_ioctl_impl.h
 create mode 100644 src/pty/ptyc_pty_ctx.c

(limited to 'src')

diff --git a/src/driver/ptyc_amain.c b/src/driver/ptyc_amain.c
index 4762d3a..3a5ca68 100644
--- a/src/driver/ptyc_amain.c
+++ b/src/driver/ptyc_amain.c
@@ -70,5 +70,8 @@ int ptyc_main(int argc, char ** argv, char ** envp)
 		if ((ptyc_version(dctx)) < 0)
 			return ptyc_exit(dctx,2);
 
+	if (ptyc_alloc_pty(dctx))
+		return ptyc_exit(dctx,2);
+
 	return ptyc_exit(dctx,ret);
 }
diff --git a/src/driver/ptyc_driver_ctx.c b/src/driver/ptyc_driver_ctx.c
index 78ffb54..d403a98 100644
--- a/src/driver/ptyc_driver_ctx.c
+++ b/src/driver/ptyc_driver_ctx.c
@@ -236,6 +236,7 @@ int ptyc_create_driver_ctx(
 
 static void ptyc_free_driver_ctx_impl(struct ptyc_driver_ctx_alloc * ictx)
 {
+	ptyc_free_pty(&ictx->ctx.ctx);
 	argv_free(ictx->meta);
 	free(ictx);
 }
diff --git a/src/internal/ptycon_ioctl_impl.h b/src/internal/ptycon_ioctl_impl.h
new file mode 100644
index 0000000..dacd689
--- /dev/null
+++ b/src/internal/ptycon_ioctl_impl.h
@@ -0,0 +1,22 @@
+#ifndef PTYCON_IOCTL_IMPL_H
+#define PTYCON_IOCTL_IMPL_H
+
+#include <ntapi/ntapi.h>
+
+static int32_t ptyc_grant(nt_pty * hptm)
+{
+	nt_tty_sigctl_info	ctlinfo;
+	nt_iosb			iosb;
+
+	ntapi->tt_aligned_block_memset(
+		&ctlinfo,0,sizeof(ctlinfo));
+
+	return ntapi->pty_ioctl(
+		hptm,
+		0,0,0,
+		&iosb,TTY_TIOCSPTLCK,
+		&ctlinfo,sizeof(ctlinfo),
+		&ctlinfo,sizeof(ctlinfo));
+}
+
+#endif
diff --git a/src/pty/ptyc_pty_ctx.c b/src/pty/ptyc_pty_ctx.c
new file mode 100644
index 0000000..31a9c26
--- /dev/null
+++ b/src/pty/ptyc_pty_ctx.c
@@ -0,0 +1,92 @@
+/*********************************************************/
+/*  ptycon: a pty-console bridge                         */
+/*  Copyright (C) 2016  Z. Gilboa                        */
+/*  Released under GPLv2 and GPLv3; see COPYING.PTYCON.  */
+/*********************************************************/
+
+#include <psxtypes/psxtypes.h>
+#include <ntapi/ntapi.h>
+#include <ptycon/ptycon.h>
+#include "ptycon_driver_impl.h"
+#include "ptycon_ioctl_impl.h"
+#include "ptycon_status_impl.h"
+
+static int32_t ptyc_pty_open(nt_pty * hptm, nt_guid * pty_guid, nt_pty ** hpty)
+{
+	nt_vfd_dev_name		pty_name;
+	nt_oa			oa = {sizeof(oa),0,0,0,0,0};
+
+	ntapi->vfd_dev_name_init(
+		&pty_name,pty_guid);
+
+	oa.obj_name = &pty_name.name;
+	oa.root_dir = hptm;
+
+	return ntapi->pty_open(
+		0,hpty,
+		NT_FILE_ALL_ACCESS,
+		&oa,0,0,0);
+}
+
+static int32_t ptyc_ptm_open(const struct ptyc_common_ctx * cctx)
+{
+	nt_guid pty_guid = TTY_PTM_GUID;
+	return ptyc_pty_open(
+		0,&pty_guid,
+		(nt_pty **)&cctx->hptm);
+}
+
+static int32_t ptyc_pts_open(const struct ptyc_common_ctx * cctx)
+{
+	int32_t status;
+	nt_guid pty_guid = TTY_PTS_GUID;
+
+	if ((status = ptyc_grant(cctx->hptm)))
+		return status;
+
+	return ptyc_pty_open(
+		cctx->hptm,&pty_guid,
+		(nt_pty **)&cctx->hpts);
+}
+
+int ptyc_alloc_pty(struct ptyc_driver_ctx * dctx)
+{
+	int32_t status;
+
+	if (dctx->cctx->hpts || dctx->cctx->hptm)
+		return ptyc_set_status(
+			dctx,NT_STATUS_DEVICE_ALREADY_ATTACHED);
+
+	if ((status = ptyc_ptm_open(dctx->cctx)))
+		return ptyc_set_status(
+			dctx,status);
+
+	if (!(dctx->cctx->drvflags & PTYC_DRIVER_DBG_OVEN)
+			&& !(dctx->cctx->drvflags & PTYC_DRIVER_DBG_RAW))
+		return ptyc_set_status(
+			dctx,NT_STATUS_SUCCESS);
+
+	if ((status = ptyc_pts_open(dctx->cctx)))
+		return ptyc_set_status(
+			dctx,status);
+
+	return ptyc_set_status(
+		dctx,NT_STATUS_SUCCESS);
+}
+
+void ptyc_free_pty(struct ptyc_driver_ctx * dctx)
+{
+	struct ptyc_common_ctx * cctx;
+
+	cctx = (struct ptyc_common_ctx *)dctx->cctx;
+
+	if (cctx->hpts) {
+		ntapi->pty_close(cctx->hpts);
+		cctx->hpts = 0;
+	}
+
+	if (cctx->hptm) {
+		ntapi->pty_close(cctx->hptm);
+		cctx->hptm = 0;
+	}
+}
-- 
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