From ab2aa3063ff3c37f49f3243507993982a314c165 Mon Sep 17 00:00:00 2001
From: Theo de Raadt <deraadt@cvs.openbsd.org>
Date: Sat, 21 Oct 1995 14:24:55 +0000
Subject: mt -f /dev/rcd* offline support

---
 sys/scsi/cd.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'sys')

diff --git a/sys/scsi/cd.c b/sys/scsi/cd.c
index 3dbe5c741f7..62e499e858a 100644
--- a/sys/scsi/cd.c
+++ b/sys/scsi/cd.c
@@ -54,6 +54,7 @@
 #include <sys/file.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
+#include <sys/mtio.h>
 #include <sys/buf.h>
 #include <sys/uio.h>
 #include <sys/malloc.h>
@@ -800,6 +801,9 @@ cdioctl(dev, cmd, addr, flag, p)
 		return scsi_start(cd->sc_link, SSS_START, 0);
 	case CDIOCSTOP:
 		return scsi_start(cd->sc_link, SSS_STOP, 0);
+	case MTIOCTOP:
+		if (((struct mtop *)addr)->mt_op != MTOFFL)
+			return EIO;
 	case CDIOCEJECT:
 		return scsi_start(cd->sc_link, SSS_STOP|SSS_LOEJ, 0);
 	case CDIOCALLOW:
-- 
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