1 files changed, 65 insertions, 0 deletions
diff --git a/usr/src/ucbcmd/plot/libplot/hp2648/subr.c b/usr/src/ucbcmd/plot/libplot/hp2648/subr.c
new file mode 100644
index 0000000000..3fecfb3922
--- /dev/null
+++ b/usr/src/ucbcmd/plot/libplot/hp2648/subr.c
@@ -0,0 +1,65 @@
+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+#ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.1	*/
+
+/*
+ * Copyright (c) 1980 Regents of the University of California.
+ * All rights reserved. The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ */
+
+/*
+ * Copyright (c) 1983, 1984 1985, 1986, 1987, 1988, Sun Microsystems, Inc.
+ * All Rights Reserved.
+ */
+
+
+#include <sgtty.h>
+#include "hp2648.h"
+
+handshake()
+{
+	int i;
+	char ch;
+
+	if( shakehands != TRUE )
+		return;
+	ch = ' ';
+	putchar(ENQ);
+	fflush(stdout);
+	while(1){
+		i = read(fildes, &ch, 1);
+		if(i < 0)
+			continue;
+		if(ch == ACK)
+			break;
+		putchar('Z');
+		fflush(stdout);
+		stty(fildes, &sarg);
+		exit(0);
+	}
+}
+
+buffready(n)
+int n;
+{
+	buffcount = buffcount + n;
+	if(buffcount >= 80){
+		handshake();
+		putchar(ESC); 
+		putchar(GRAPHIC);
+		putchar(PLOT);
+		putchar(BINARY);
+		buffcount = n+4;
+	}
+}
+
+itoa(num,byte1,byte2)
+int num;
+char *byte1,*byte2;
+{
+	*byte1 = (num & 037) | 040;
+	*byte2 = ((num>>5) & 037) | 040;
+}