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[Qemu-devel] [PATCH v3 04/10] qemu-iotests: add poke_file utility functi
From: |
Fam Zheng |
Subject: |
[Qemu-devel] [PATCH v3 04/10] qemu-iotests: add poke_file utility function |
Date: |
Tue, 6 Aug 2013 09:40:37 +0800 |
From: Stefan Hajnoczi <address@hidden>
The new poke_file function sets bytes at an offset in a file given a
printf-style format string. It can be used to corrupt an image file for
test coverage of error paths.
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
tests/qemu-iotests/common.rc | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index e9ba358..5e077c3 100644
--- a/tests/qemu-iotests/common.rc
+++ b/tests/qemu-iotests/common.rc
@@ -34,6 +34,12 @@ dd()
fi
}
+# poke_file 'test.img' 512 '\xff\xfe'
+poke_file()
+{
+ printf "$3" | dd "of=$1" bs=1 "seek=$2" conv=notrunc &>/dev/null
+}
+
# we need common.config
if [ "$iam" != "check" ]
then
--
1.8.3.4
- [Qemu-devel] [PATCH v3 00/10] vmdk: Input validation fixes, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 01/10] vmdk: Make VMDK3Header QEMU_PACKED, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 02/10] vmdk: Make VmdkGrainMarker QEMU_PACKED, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 03/10] vmdk: use unsigned values for on disk header fields, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 04/10] qemu-iotests: add poke_file utility function,
Fam Zheng <=
- [Qemu-devel] [PATCH v3 05/10] qemu-iotests: add empty test case for vmdk, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 06/10] vmdk: check granularity field in opening, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 07/10] vmdk: check l2 table size when opening, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 08/10] vmdk: check l1 size before opening image, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 09/10] vmdk: use heap allocation for whole_grain, Fam Zheng, 2013/08/05
- [Qemu-devel] [PATCH v3 10/10] vmdk: rename num_gtes_per_gte to num_gtes_per_gt, Fam Zheng, 2013/08/05
- Re: [Qemu-devel] [PATCH v3 00/10] vmdk: Input validation fixes, Stefan Hajnoczi, 2013/08/06