From 97bbba6938fc22605026b4cff3c5cc524c7bdf38 Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Thu, 17 Mar 2016 14:45:24 +0100

Subject: [PATCH] lsinitrd: add "--unpack" to lsinitrd

also "--unpackearly" and "--verbose"

---

 lsinitrd.1.asc |  9 +++++++++

 lsinitrd.sh    | 43 ++++++++++++++++++++++++++++++++-----------

 2 files changed, 41 insertions(+), 11 deletions(-)

diff --git a/lsinitrd.1.asc b/lsinitrd.1.asc

index 4293910..b6a704c 100644

--- a/lsinitrd.1.asc

+++ b/lsinitrd.1.asc

@@ -34,6 +34,15 @@ OPTIONS

 **-k, --kver** _<kernel version>_::

     inspect the initramfs of <kernel version>.

+**--unpack**::

+    unpack the initramfs to the current directory, instead of displaying the contents.

+

+**--unpackearly**::

+    unpack the early microcode initramfs to the current directory, instead of displaying the contents.

+

+**-v, --verbose**::

+    unpack verbosely

+

 AVAILABILITY

 ------------

 The lsinitrd command is part of the dracut package and is available from

diff --git a/lsinitrd.sh b/lsinitrd.sh

index 441fb92..224b9c1 100755

--- a/lsinitrd.sh

+++ b/lsinitrd.sh

@@ -27,6 +27,9 @@ usage()

         echo "-s, --size                  sort the contents of the initramfs by size."

         echo "-m, --mod                   list modules."

         echo "-f, --file <filename>       print the contents of <filename>."

+        echo "--unpack                    unpack the initramfs, instead of displaying the contents."

+        echo "--unpackearly               unpack the early microcode part of the initramfs."

+        echo "-v, --verbose               unpack verbosely."

         echo "-k, --kver <kernel version> inspect the initramfs of <kernel version>."

         echo

     } >&2

@@ -37,16 +40,21 @@ usage()

 sorted=0

 modules=0

+unpack=0

+unset verbose

 declare -A filenames

 unset POSIXLY_CORRECT

 TEMP=$(getopt \

-    -o "shmf:k:" \

+    -o "vshmf:k:" \

     --long kver: \

     --long file: \

     --long mod \

     --long help \

     --long size \

+    --long unpack \

+    --long unpackearly \

+    --long verbose \

     -- "$@")

 if (( $? != 0 )); then

@@ -58,13 +66,16 @@ eval set -- "$TEMP"

 while (($# > 0)); do

     case $1 in

-        -k|--kver)  KERNEL_VERSION="$2"; shift;;

-        -f|--file)  filenames[${2#/}]=1; shift;;

-        -s|--size)  sorted=1;;

-        -h|--help)  usage; exit 0;;

-        -m|--mod)   modules=1;;

-        --)         shift;break;;

-        *)          usage; exit 1;;

+        -k|--kver)     KERNEL_VERSION="$2"; shift;;

+        -f|--file)     filenames[${2#/}]=1; shift;;

+        -s|--size)     sorted=1;;

+        -h|--help)     usage; exit 0;;

+        -m|--mod)      modules=1;;

+        -v|--verbose)  verbose="--verbose";;

+        --unpack)      unpack=1;;

+        --unpackearly) unpackearly=1;;

+        --)            shift;break;;

+        *)             usage; exit 1;;

     esac

     shift

 done

@@ -147,8 +158,14 @@ list_files()

     echo "========================================================================"

 }

+unpack_files()

+{

+    $CAT "$image" | cpio -id --quiet $verbose

+    ((ret+=$?))

+}

+

-if (( ${#filenames[@]} <= 0 )); then

+if (( ${#filenames[@]} <= 0 )) && [[ -z "$unpack" ]] && [[ -z "$unpackearly" ]]; then

     echo "Image: $image: $(du -h $image | while read a b || [ -n "$a" ]; do echo $a;done)"

     echo "========================================================================"

 fi

@@ -159,7 +176,9 @@ case $bin in

         CAT="cat --"

         is_early=$(cpio --extract --verbose --quiet --to-stdout -- 'early_cpio' < "$image" 2>/dev/null)

         if [[ "$is_early" ]]; then

-            if (( ${#filenames[@]} > 0 )); then

+            if [[ -n "$unpackearly" ]]; then

+                unpack_files

+            elif (( ${#filenames[@]} > 0 )); then

                 extract_files

             else

                 echo "Early CPIO image"

@@ -218,7 +237,9 @@ fi

 ret=0

-if (( ${#filenames[@]} > 0 )); then

+if [[ -n "$unpack" ]]; then

+    unpack_files

+elif (( ${#filenames[@]} > 0 )); then

     extract_files

 else

     version=$($CAT "$image" | cpio --extract --verbose --quiet --to-stdout -- \