From cc6e7cb3477cdb34c23be8ce246203d2b7f002de Mon Sep 17 00:00:00 2001
From: Ingo Weinhold <ingo_weinhold@gmx.de>
Date: Thu, 24 Apr 2008 21:30:38 +0000
Subject: [PATCH] Added the BSDish openpty().

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25135 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 headers/compatibility/bsd/pty.h | 19 ++++++++++++++
 src/libs/bsd/Jamfile            |  1 +
 src/libs/bsd/pty.cpp            | 44 +++++++++++++++++++++++++++++++++
 3 files changed, 64 insertions(+)
 create mode 100644 headers/compatibility/bsd/pty.h
 create mode 100644 src/libs/bsd/pty.cpp

diff --git a/headers/compatibility/bsd/pty.h b/headers/compatibility/bsd/pty.h
new file mode 100644
index 0000000000..dbb7334caa
--- /dev/null
+++ b/headers/compatibility/bsd/pty.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2008, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _BSD_PTY_H_
+#define _BSD_PTY_H_
+
+#include <sys/cdefs.h>
+#include <termios.h>
+
+
+__BEGIN_DECLS
+
+extern int		openpty(int* master, int* slave, char* name,
+					struct termios* termAttrs, struct winsize* windowSize);
+
+__END_DECLS
+
+#endif	// _BSD_PTY_H_
diff --git a/src/libs/bsd/Jamfile b/src/libs/bsd/Jamfile
index c5b6c2b53d..0e54903cfd 100644
--- a/src/libs/bsd/Jamfile
+++ b/src/libs/bsd/Jamfile
@@ -11,6 +11,7 @@ SharedLibrary libbsd.so :
 	getpass.c
 	issetugid.c
 	progname.c
+	pty.cpp
 	signal.c
 	stringlist.c
 	unvis.c
diff --git a/src/libs/bsd/pty.cpp b/src/libs/bsd/pty.cpp
new file mode 100644
index 0000000000..1cf6a98eae
--- /dev/null
+++ b/src/libs/bsd/pty.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2008, Ingo Weinhold, ingo_weinhold@gmx.de. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+
+#include <pty.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+
+
+int
+openpty(int* _master, int* _slave, char* name, struct termios* termAttrs,
+	struct winsize* windowSize)
+{
+	int master = posix_openpt(O_RDWR);
+	if (master < 0)
+    	return -1;
+
+	int slave;
+	const char *ttyName;
+	if (grantpt(master) != 0 || unlockpt(master) != 0
+		|| (ttyName = ptsname(master)) == NULL
+		|| (slave = open(ttyName, O_RDWR | O_NOCTTY)) < 0) {
+		close(master);
+		return -1;
+	}
+
+	if (termAttrs != NULL && tcsetattr(master, TCSANOW, termAttrs) != 0
+		|| windowSize != NULL
+			&& ioctl(master, TIOCSWINSZ, windowSize, sizeof(winsize)) != 0) {
+		close(slave);
+		close(master);
+	}
+
+	*_master = master;
+	*_slave = slave;
+
+	if (name != NULL)
+		strcpy(name, ttyName);
+
+	return 0;
+}