1c0f7d5595
* With some aws tape images, I have gotten some errors * We can install Linux/s390x to hercules with tun network support on NetBSD Changelog: unknown
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
$NetBSD: patch-scsitape.c,v 1.2 2013/10/15 14:14:53 ryoon Exp $
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--- scsitape.c.orig 2013-06-14 21:32:42.000000000 +0000
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+++ scsitape.c
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@@ -1261,7 +1261,11 @@ int readblkid_scsitape ( DEVBLK* dev, BY
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// value, also known as the >>LOGICAL<< value and *NOT*
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// the absolute/physical device-relative value)
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+#if defined(BSD) && BSD >= 199306
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+ struct mtget mtpos;
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+#else
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struct mtpos mtpos;
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+#endif
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BYTE blockid[4];
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if (ioctl_tape( dev->fd, MTIOCPOS, (char*) &mtpos ) < 0 )
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@@ -1326,6 +1330,19 @@ int locateblk_scsitape ( DEVBLK* dev, U3
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mtop.mt_count = CSWAP32( mtop.mt_count ); // (host <- guest)
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mtop.mt_op = MTSEEK;
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+#if defined(BSD) && BSD >= 199306
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+ /* Find out where we are so we can do a relative seek */
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+ {
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+ struct mtget here;
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+
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+ rc = ioctl_tape( dev->fd, MTIOCGET, (char*)&here );
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+ if (rc >= 0) {
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+ mtop.mt_count -= here.mt_blkno;
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+ mtop.mt_op = MTFSR;
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+ }
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+ }
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+#endif /* BSD */
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+
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// Ask the actual hardware to do an actual physical locate...
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if ((rc = ioctl_tape( dev->fd, MTIOCTOP, (char*)&mtop )) < 0)
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