From 758757c1b8af4bd84592b18f0517a7cfbdad4600 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Wed, 17 Jul 2019 14:59:02 -0500
Subject: [PATCH] src/script/unhexdump-C: script to reverse a 'hexdump -C'
 style hexdump

Notably, this is the format for the bufferlist::hexdump() dump.

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/script/unhexdump-C | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100755 src/script/unhexdump-C

diff --git a/src/script/unhexdump-C b/src/script/unhexdump-C
new file mode 100755
index 00000000000..b4e75597347
--- /dev/null
+++ b/src/script/unhexdump-C
@@ -0,0 +1,18 @@
+#/bin/bash
+
+cat $1 | \
+    sed -E 's/ /: /' | \
+    cut -c 1-59 | \
+    sed -E 's/ (..) (..)/ \1\2/g' | \
+    sed 's/  / /g' | \
+    grep ': '  | \
+    xxd -r > $2
+
+# real hexdump -C has a trailing file size, but it isn't always
+# present
+hexsize=$(tail -1 $1)
+if [ ${#hexsize} = 8 ]; then
+    decsize=$(printf '%d' $hexsize)
+    echo "truncate up to $decsize"
+    truncate --size $decsize $2
+fi
-- 
2.47.3