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Diffstat (limited to 'fs/initramfs/gen_initramfs_list.sh')
| -rw-r--r-- | fs/initramfs/gen_initramfs_list.sh | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/fs/initramfs/gen_initramfs_list.sh b/fs/initramfs/gen_initramfs_list.sh deleted file mode 100644 index 26252b619..000000000 --- a/fs/initramfs/gen_initramfs_list.sh +++ /dev/null @@ -1,203 +0,0 @@ -#!/bin/sh -# Copyright (C) Martin Schlemmer <azarah@nosferatu.za.org> -# Released under the terms of the GNU GPL -# -# Generate a newline separated list of entries from the file/directory -# supplied as an argument. -# -# If a file/directory is not supplied then generate a small dummy file. -# -# The output is suitable for gen_init_cpio built from usr/gen_init_cpio.c. -# - -default_initramfs() { - cat <<-EOF - # This is a very simple, default initramfs - - dir /dev 0755 0 0 - nod /dev/console 0600 0 0 c 5 1 - dir /root 0700 0 0 - EOF -} - -filetype() { - local argv1="$1" - - # symlink test must come before file test - if [ -L "$argv1" ]; then - echo "slink" - elif [ -f "$argv1" ]; then - echo "file" - elif [ -d "$argv1" ]; then - echo "dir" - elif [ -b "$argv1" -o -c "$argv1" ]; then - echo "nod" - elif [ -p "$argv1" ]; then - echo "pipe" - elif [ -S "$argv1" ]; then - echo "sock" - else - echo "invalid" - fi - return 0 -} - -print_mtime() { - local argv1="$1" - local mymtime="0" - - if [ -e "$argv1" ]; then - mymtime=$(find "$argv1" -printf "%T@\n" | sort -r | head -n 1) - fi - - echo "# Last modified: $mymtime" - echo -} - -parse() { - local location="$1" - local name=$(echo "$location" | sed -e "s,$srcdir,,") - # change '//' into '/' - name=$(echo $name | sed -e 's,/[/]*,/,g') - local mode="$2" - local uid="$3" - local gid="$4" - local ftype=$(filetype "$location") - # remap uid/gid to 0 if necessary - [ "x$uid" != "x" ] && [ $uid -eq $root_uid ] && uid=0 - [ "x$gid" != "x" ] && [ $gid -eq $root_gid ] && gid=0 - local str="$mode $uid $gid" - - [ "$ftype" = "invalid" ] && return 0 - [ "$location" = "$srcdir" ] && return 0 - - case "$ftype" in - "file") - str="$ftype $name $location $str" - ;; - "nod") - local devtype= - local maj=$(LC_ALL=C ls -l "$location" | \ - awk '{sub(/,/, "", $5); print $5}') - local min=$(LC_ALL=C ls -l "$location" | \ - awk '{print $6}') - - if [ -b "$location" ]; then - devtype="b" - else - devtype="c" - fi - str="$ftype $name $str $devtype $maj $min" - ;; - "slink") - local target=$(LC_ALL=C ls -l "$location" | \ - awk '{print $11}') - str="$ftype $name $target $str" - ;; - *) - str="$ftype $name $str" - ;; - esac - - echo "$str" - - return 0 -} - -usage() { - printf "Usage:\n" - printf "$0 [ [-u <root_uid>] [-g <root_gid>] [-d | <cpio_source>] ] . . .\n" - printf "\n" - printf -- "-u <root_uid> User ID to map to user ID 0 (root).\n" - printf " <root_uid> is only meaningful if <cpio_source>\n" - printf " is a directory.\n" - printf -- "-g <root_gid> Group ID to map to group ID 0 (root).\n" - printf " <root_gid> is only meaningful if <cpio_source>\n" - printf " is a directory.\n" - printf "<cpio_source> File list or directory for cpio archive.\n" - printf " If <cpio_source> is not provided then a\n" - printf " a default list will be output.\n" - printf -- "-d Output the default cpio list. If no <cpio_source>\n" - printf " is given then the default cpio list will be output.\n" - printf "\n" - printf "All options may be repeated and are interpreted sequentially\n" - printf "and immediately. -u and -g states are preserved across\n" - printf "<cpio_source> options so an explicit \"-u 0 -g 0\" is required\n" - printf "to reset the root/group mapping.\n" -} - -build_list() { - printf "\n#####################\n# $cpio_source\n" - - if [ -f "$cpio_source" ]; then - print_mtime "$cpio_source" - cat "$cpio_source" - elif [ -d "$cpio_source" ]; then - srcdir=$(echo "$cpio_source" | sed -e 's://*:/:g;s:/$::') - dirlist=$(find "$srcdir" -printf "%p %m %U %G\n" 2>/dev/null) - - # If $dirlist is only one line, then the directory is empty - if [ "$(echo "$dirlist" | wc -l)" -gt 1 ]; then - print_mtime "$cpio_source" - - echo "$dirlist" | \ - while read x; do - parse $x - done - else - # Failsafe in case directory is empty - default_initramfs - fi - else - echo " $0: Cannot open '$cpio_source'" >&2 - exit 1 - fi -} - - -root_uid=0 -root_gid=0 - -while [ $# -gt 0 ]; do - arg="$1" - shift - case "$arg" in - "-u") - root_uid="$1" - shift - ;; - "-g") - root_gid="$1" - shift - ;; - "-d") - default_list="$arg" - default_initramfs - ;; - "-h") - usage - exit 0 - ;; - *) - case "$arg" in - "-"*) - printf "ERROR: unknown option \"$arg\"\n" >&2 - printf "If the filename validly begins with '-', then it must be prefixed\n" >&2 - printf "by './' so that it won't be interpreted as an option." >&2 - printf "\n" >&2 - usage >&2 - exit 1 - ;; - *) - cpio_source="$arg" - build_list - ;; - esac - ;; - esac -done - -# spit out the default cpio list if a source hasn't been specified -[ -z "$cpio_source" -a -z "$default_list" ] && default_initramfs - -exit 0 |