[v3,15/16] iotests: Add peek_file* functions
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Message ID 20191011152814.14791-16-mreitz@redhat.com
State New
Headers show
Series
  • qcow2: Let check -r all repair some snapshot bits
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Commit Message

Max Reitz Oct. 11, 2019, 3:28 p.m. UTC
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
 tests/qemu-iotests/common.rc | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Patch
diff mbox series

diff --git a/tests/qemu-iotests/common.rc b/tests/qemu-iotests/common.rc
index 12b4751848..fa7bae2422 100644
--- a/tests/qemu-iotests/common.rc
+++ b/tests/qemu-iotests/common.rc
@@ -53,6 +53,26 @@  poke_file()
     printf "$3" | dd "of=$1" bs=1 "seek=$2" conv=notrunc &>/dev/null
 }
 
+# peek_file_le 'test.img' 512 2 => 65534
+peek_file_le()
+{
+    # Wrap in echo $() to strip spaces
+    echo $(od -j"$2" -N"$3" --endian=little -An -vtu"$3" "$1")
+}
+
+# peek_file_be 'test.img' 512 2 => 65279
+peek_file_be()
+{
+    # Wrap in echo $() to strip spaces
+    echo $(od -j"$2" -N"$3" --endian=big -An -vtu"$3" "$1")
+}
+
+# peek_file_raw 'test.img' 512 2 => '\xff\xfe'
+peek_file_raw()
+{
+    dd if="$1" bs=1 skip="$2" count="$3" status=none
+}
+
 
 if ! . ./common.config
     then