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$NetBSD: patch-af,v 1.1 2001/02/22 11:34:59 agc Exp $
> From Wofgang Solfrank (ws@tools.de)
> What I discovered was a problem in ckddasd.c, where there are two lseeks
> with an offset of -(CKDDASD_RECHDR_SIZE). Now CKDDASD_RECHDR_SIZE is
> defined (in hercules.h) as sizeof(CKDDASD_RECHDR), which happens to be
> an unsigned int. Since the offset in the lseek (and in the ckd_lseek
> that is used as an interface routine to it) is of type off_t, i.e. 64-bit,
> the unsigned is zero-extended to 64 bits, and thus the sign is lost.
--- ckddasd.c 2001/02/22 10:54:55 1.1
+++ ckddasd.c 2001/02/22 10:55:26
@@ -1663,7 +1663,7 @@
}
/* Backspace over end of track marker */
- rc = ckd_lseek (dev, dev->fd, -(CKDDASD_RECHDR_SIZE), SEEK_CUR);
+ rc = ckd_lseek (dev, dev->fd, (int) -(CKDDASD_RECHDR_SIZE), SEEK_CUR);
if (rc == -1)
{
/* Handle seek error condition */
@@ -1813,7 +1813,7 @@
}
/* Backspace over end of track marker */
- rc = ckd_lseek (dev, dev->fd, -(CKDDASD_RECHDR_SIZE), SEEK_CUR);
+ rc = ckd_lseek (dev, dev->fd, (int) -(CKDDASD_RECHDR_SIZE), SEEK_CUR);
if (rc == -1)
{
/* Handle seek error condition */
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