Initial source

1 files changed, 51 insertions, 0 deletions

diff --git a/i386/dos/dos_tcgetattr.c b/i386/dos/dos_tcgetattr.c
new file mode 100644
index 0000000..8f0d493
--- /dev/null
+++ b/i386/dos/dos_tcgetattr.c
@@ -0,0 +1,51 @@
+/* 
+ * Copyright (c) 1995-1994 The University of Utah and
+ * the Computer Systems Laboratory at the University of Utah (CSL).
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify and distribute this software is hereby
+ * granted provided that (1) source code retains these copyright, permission,
+ * and disclaimer notices, and (2) redistributions including binaries
+ * reproduce the notices in supporting documentation, and (3) all advertising
+ * materials mentioning features or use of this software display the following
+ * acknowledgement: ``This product includes software developed by the
+ * Computer Systems Laboratory at the University of Utah.''
+ *
+ * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
+ * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
+ * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * CSL requests users of this software to return to csl-dist@cs.utah.edu any
+ * improvements that they make and grant CSL redistribution rights.
+ *
+ *      Author: Bryan Ford, University of Utah CSL
+ */
+
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/termios.h>
+
+#include "dos_io.h"
+
+int dos_tcgetattr(dos_fd_t fd, struct termios *t)
+{
+	int err;
+	struct real_call_data real_call_data;
+
+	dos_init_rcd(&real_call_data);
+
+	bzero(t, sizeof(*t));
+
+	/* First make sure this is actually a character device.  */
+	real_call_data.eax = 0x4400;
+	real_call_data.ebx = fd;
+	real_int(0x21, &real_call_data);
+	if (err = dos_check_err(&real_call_data))
+		return err;
+	if (!(real_call_data.edx & (1<<7)))
+		return ENOTTY;
+
+	return 0;
+}
+