141 lines
3.9 KiB
Diff
141 lines
3.9 KiB
Diff
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From 7d9bb76ac7cf6996318a0cfbc8576d8d307bff3e Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Tue, 16 Apr 2013 10:44:56 +0200
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Subject: [PATCH] lsinitrd: switch to getopt and add "-f" and "-k" parameter
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---
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lsinitrd.1.asc | 10 +++++++++-
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lsinitrd.sh | 61 +++++++++++++++++++++++++++++++++++++++++++---------------
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2 files changed, 54 insertions(+), 17 deletions(-)
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diff --git a/lsinitrd.1.asc b/lsinitrd.1.asc
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index fd98161..4293910 100644
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--- a/lsinitrd.1.asc
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+++ b/lsinitrd.1.asc
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@@ -10,7 +10,9 @@ lsinitrd - tool to show the contents of an initramfs image
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SYNOPSIS
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--------
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-*lsinitrd* ['OPTION...'] [<image>]
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+*lsinitrd* ['OPTION...'] [<image> [<filename> [<filename> [...] ]]]
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+
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+*lsinitrd* ['OPTION...'] -k <kernel-version>
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DESCRIPTION
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-----------
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@@ -26,6 +28,12 @@ OPTIONS
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**-s, --size**::
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sort the contents of the initramfs by size.
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+**-f, --file** _<filename>_::
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+ print the contents of <filename>.
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+
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+**-k, --kver** _<kernel version>_::
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+ inspect the initramfs of <kernel version>.
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+
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AVAILABILITY
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------------
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The lsinitrd command is part of the dracut package and is available from
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diff --git a/lsinitrd.sh b/lsinitrd.sh
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index 1b27393..42e30d9 100755
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--- a/lsinitrd.sh
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+++ b/lsinitrd.sh
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@@ -22,29 +22,51 @@
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usage()
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{
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{
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- echo "Usage: ${0##*/} [-s] [<initramfs file> [<filename>]]"
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+ echo "Usage: ${0##*/} [options] [<initramfs file> [<filename> [<filename> [...] ]]]"
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+ echo "Usage: ${0##*/} [options] -k <kernel version>"
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echo
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- echo "-h, --help print a help message and exit."
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- echo "-s, --size sort the contents of the initramfs by size."
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+ echo "-h, --help print a help message and exit."
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+ echo "-s, --size sort the contents of the initramfs by size."
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+ echo "-f, --file <filename> print the contents of <filename>."
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+ echo "-k, --kver <kernel version> inspect the initramfs of <kernel version>."
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echo
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} >&2
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}
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-[[ $# -le 2 ]] || { usage ; exit 1 ; }
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-
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sorted=0
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-while getopts "s" opt; do
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- case $opt in
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- s) sorted=1;;
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- h) usage; exit 0;;
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- \?) usage; exit 1;;
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+declare -A filenames
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+
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+unset POSIXLY_CORRECT
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+TEMP=$(getopt \
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+ -o "shf:k:" \
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+ --long kver: \
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+ --long file: \
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+ --long help \
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+ --long size \
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+ -- "$@")
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+
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+if (( $? != 0 )); then
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+ usage
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+ exit 1
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+fi
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+
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+eval set -- "$TEMP"
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+
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+while (($# > 0)); do
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+ case $1 in
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+ -k|--kver) KERNEL_VERSION="$2"; shift;;
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+ -f|--file) filenames[${2#/}]=1; shift;;
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+ -s|--size) sorted=1;;
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+ -h|--help) usage; exit 0;;
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+ --) shift;break;;
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+ *) usage; exit 1;;
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esac
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+ shift
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done
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-shift $((OPTIND-1))
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-KERNEL_VERSION="$(uname -r)"
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+[[ $KERNEL_VERSION ]] || KERNEL_VERSION="$(uname -r)"
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-if [[ "$1" ]]; then
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+if [[ $1 ]]; then
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image="$1"
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if ! [[ -f "$image" ]]; then
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{
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@@ -57,13 +79,20 @@ if [[ "$1" ]]; then
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else
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[[ -f /etc/machine-id ]] && read MACHINE_ID < /etc/machine-id
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- if [[ $MACHINE_ID ]] && [[ -d /boot/${MACHINE_ID} || -L /boot/${MACHINE_ID} ]] ; then
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+ if [[ -d /boot/loader/entries || -L /boot/loader/entries ]] \
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+ && [[ $MACHINE_ID ]] \
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+ && [[ -d /boot/${MACHINE_ID} || -L /boot/${MACHINE_ID} ]] ; then
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image="/boot/${MACHINE_ID}/${KERNEL_VERSION}/initrd"
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else
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image="/boot/initramfs-${KERNEL_VERSION}.img"
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fi
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fi
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+shift
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+while (($# > 0)); do
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+ filenames[${1#/}]=1;
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+ shift
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+done
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if ! [[ -f "$image" ]]; then
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{
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@@ -93,8 +122,8 @@ elif [[ "$FILE_T" =~ :\ data ]]; then
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CAT="xzcat $XZ_SINGLE_STREAM"
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fi
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-if [[ $# -eq 2 ]]; then
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- $CAT $image | cpio --extract --verbose --quiet --to-stdout ${2#/} 2>/dev/null
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+if (( ${#filenames[@]} > 0 )); then
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+ $CAT $image | cpio --extract --verbose --quiet --to-stdout ${!filenames[@]} 2>/dev/null
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exit $?
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fi
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