From 777c02a39373e2e5e683f9e7503eacade47e66a2 Mon Sep 17 00:00:00 2001
From: Keith Bostic <bostic@ucbvax.Berkeley.EDU>
Date: Fri, 4 Mar 1988 05:03:40 -0800
Subject: [PATCH] break out main copy loop

SCCS-vsn: sys/stand.att/copy.c 7.5
SCCS-vsn: sys/stand.att/copy.c 7.5
SCCS-vsn: sys/stand.att/docopy.c 7.1
---
 usr/src/sys/stand.att/copy.c   |  2 +-
 usr/src/sys/stand.att/docopy.c | 52 ++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100644 usr/src/sys/stand.att/docopy.c

diff --git a/usr/src/sys/stand.att/copy.c b/usr/src/sys/stand.att/copy.c
index 83ae9ede0f..0883fd3c31 100644
--- a/usr/src/sys/stand.att/copy.c
+++ b/usr/src/sys/stand.att/copy.c
@@ -3,7 +3,7 @@
  * All rights reserved.  The Berkeley software License Agreement
  * specifies the terms and conditions for redistribution.
  *
- *	@(#)copy.c	7.4 (Berkeley) %G%
+ *	@(#)copy.c	7.5 (Berkeley) %G%
  */
 
 /*
diff --git a/usr/src/sys/stand.att/docopy.c b/usr/src/sys/stand.att/docopy.c
new file mode 100644
index 0000000000..794a1ca8b9
--- /dev/null
+++ b/usr/src/sys/stand.att/docopy.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 1988 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of California at Berkeley. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ *
+ *	@(#)docopy.c	7.1 (Berkeley) %G%
+ */
+#define	SIZE	10240
+
+docopy(from, to, nrecs)
+	register int from, to, nrecs;
+{
+	register int record, rcc, wcc;
+	char buf[SIZE];
+
+	for (record = 0;;) {
+		if (!(rcc = read(from, buffer, SIZE)))
+			break;
+		if (rcc < 0) {
+			printf("Record %d: read error, errno=%d\n",
+			    record, errno);
+			break;
+		}
+		if (rcc < SIZE)
+			printf("Record %d: read short; expected %d, got %d\n",
+			    record, SIZE, rcc);
+#ifdef vax
+		/* For bug in ht driver. */
+		if (rcc > SIZE)
+			rcc = SIZE;
+#endif
+		if ((wcc = write(to, buffer, rcc)) < 0) {
+			printf("Record %d: write error: errno=%d\n",
+			    record, errno);
+			break;
+		}
+		if (wcc < rcc) {
+			printf("Record %d: write short; expected %d, got %d\n",
+			    record, rcc, wcc);
+			break;
+		}
+		if (nrecs > 0 && ++record == nrecs)
+			break;
+	}
+	printf("copy completed: %d records copied\n", record);
+}
-- 
2.20.1