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salvage: Zero corrupted header

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In the salvager, if we read in a corrupt header (either we get a short
read or the magic is mismatched), make sure we zero out the contents,
so we don't read garbage further on.

Change-Id: Ifb4b9fc1b25d5eab470f0950a1d3bb240f75b0d3
Reviewed-on: http://gerrit.openafs.org/2527
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
This commit is contained in:
Andrew Deason 2010-07-28 12:00:37 -05:00 committed by Derrick Brashear
parent 9da5e4700b
commit 1c002a5b5d
1 changed files with 3 additions and 0 deletions
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3
src/vol/vol-salvage.c
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@ -2377,6 +2377,9 @@ SalvageHeader(register struct stuff *sp, struct InodeSummary *isp, int check,
Log("Part of the header (%s) is corrupted; recreating\n", Log("Part of the header (%s) is corrupted; recreating\n",
sp->description); sp->description);
recreate = 1; recreate = 1;
/* header can be garbage; make sure we don't read garbage data from
* it below */
memset(&header, 0, sizeof(header));
} }
if (sp->inodeType == VI_VOLINFO if (sp->inodeType == VI_VOLINFO
&& header.volumeInfo.destroyMe == DESTROY_ME) { && header.volumeInfo.destroyMe == DESTROY_ME) {