From af27dfdd0ae13b638a472ce834e5fccd718a84ca Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sun, 15 Jul 2018 06:05:03 -0400
Subject: internals: added ptyc_write().

---
 src/internal/ptycon_nolibc_impl.h |  1 +
 src/internal/ptycon_ntaio_impl.c  | 69 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)

(limited to 'src/internal')

diff --git a/src/internal/ptycon_nolibc_impl.h b/src/internal/ptycon_nolibc_impl.h
index 7050c03..0359205 100644
--- a/src/internal/ptycon_nolibc_impl.h
+++ b/src/internal/ptycon_nolibc_impl.h
@@ -29,6 +29,7 @@
 typedef struct ptyc_file FILE;
 
 int	ptyc_isatty(int fildes);
+int	ptyc_write(int, const void *, size_t);
 int	ptyc_fileno(void * any);
 
 int	ptyc_sprintf(char * str, const char * fmt, ...);
diff --git a/src/internal/ptycon_ntaio_impl.c b/src/internal/ptycon_ntaio_impl.c
index 7055aa4..b0ba88b 100644
--- a/src/internal/ptycon_ntaio_impl.c
+++ b/src/internal/ptycon_ntaio_impl.c
@@ -5,6 +5,7 @@
 /*********************************************************/
 
 #include <ntapi/ntapi.h>
+#include <stdio.h>
 
 extern const ntapi_vtbl * ptyc_ntapi;
 
@@ -161,3 +162,71 @@ int ptyc_fileno(void * any)
 {
 	return (int)(intptr_t)any;
 }
+
+int ptyc_write(int fd, const void * buf, size_t size)
+{
+	int32_t			status;
+	nt_runtime_data *	rtdata;
+	ntapi_zw_write_file *	iofn;
+	void *			hio;
+	void *			hevent;
+	int			fdtype;
+	nt_iosb			iosb;
+
+	/* size */
+	if (size >= 0x80000000)
+		return NT_STATUS_INVALID_PARAMETER;
+
+	/* rtdata */
+	if (ptyc_ntapi->tt_get_runtime_data(&rtdata,0))
+		return NT_STATUS_REINITIALIZATION_NEEDED;
+
+	/* hio, io type */
+	if (fd == STDIN_FILENO) {
+		hio    = rtdata->hstdin;
+		fdtype = rtdata->stdin_type;
+
+	} else if (fd == STDOUT_FILENO) {
+		hio    = rtdata->hstdout;
+		fdtype = rtdata->stdout_type;
+
+	} else if (fd == STDERR_FILENO) {
+		hio    = rtdata->hstderr;
+		fdtype = rtdata->stderr_type;
+	} else {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (!hio)
+		return NT_STATUS_INVALID_HANDLE;
+
+	/* iofn */
+	iofn = (fdtype ==  NT_FILE_TYPE_PTY)
+		? (ntapi_zw_write_file *)ptyc_ntapi->pty_write
+		: ptyc_ntapi->zw_write_file;
+
+	/* hevent */
+	if ((status = ptyc_ntapi->tt_create_private_event(
+			&hevent,
+			NT_NOTIFICATION_EVENT,
+			NT_EVENT_NOT_SIGNALED)))
+		return status;
+
+	/* iowrite */
+	status = iofn(
+		hio,hevent,
+		0,0,&iosb,
+		(void *)buf,size,
+		0,0);
+
+	/* wait */
+	if (status == NT_STATUS_PENDING)
+		status = ptyc_ntapi->zw_wait_for_single_object(
+			hevent,0,0);
+
+	/* hevent */
+	ptyc_ntapi->zw_close(hevent);
+
+	/* ret */
+	return status ? status : iosb.status;
+}
-- 
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