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-rw-r--r--src/pty/ptyc_pty_ctx.c92
1 files changed, 92 insertions, 0 deletions
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;
+ }
+}