1 files changed, 25 insertions, 0 deletions

diff --git a/Documentation/BK-usage/unbz64wrap b/Documentation/BK-usage/unbz64wrap
new file mode 100755
index 000000000000..4fc3e73e9a81
--- /dev/null
+++ b/Documentation/BK-usage/unbz64wrap
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+# unbz64wrap - the receiving side of a bzip2 | base64 stream
+# Andreas Dilger <adilger@clusterfs.com>   Jan 2002
+
+# Sadly, mimencode does not appear to have good "begin" and "end" markers
+# like uuencode does, and it is picky about getting the right start/end of
+# the base64 stream, so we handle this explicitly here.
+
+PATH=$PATH:/usr/bin:/usr/local/bin:/usr/freeware/bin
+
+if mimencode -u < /dev/null > /dev/null 2>&1 ; then
+        SHOW=
+        while read LINE; do
+                case $LINE in
+                begin-base64*) SHOW=YES ;;
+                ====) SHOW= ;;
+                *) [ "$SHOW" ] && echo "$LINE" ;;
+                esac
+        done | mimencode -u | bunzip2
+        exit $?
+else
+        cat - | uudecode -o /dev/stdout | bunzip2
+        exit $?
+fi