When chroot-ing a program, you have to copy the necessary libraries for it under the chroot-ed directories. It is sometimes a troublesome task as some libraries may have some dependencies on other libraries as the program itself does. This script, lddcopy.sh, is a convenient shell script which copies all the necessary libraries recursively and p…

lddcopy.sh

#!/bin/sh
########################################################################
# lddcopy - A shell script to copy libraries for chrooted applications #
#                                       Yu Yagi ([email protected]) #
########################################################################

chroot=
opterr=
dryrun=
silent=false
while getopts "c:nq" param; do
    case $param in
        c) chroot="$OPTARG" ;;
        n) dryrun=echo ;;
        q) silent=true ;;
        ?) opterr=1; break;;
    esac
done

shift `expr $OPTIND - 1`
program=$1

if [ -z "$program" -o "$opterr" ]; then
    echo "Usage: `basename $0` -c [chroot-dir] [-n] [-q] [program]"
    echo "-c [chroot-dir]\tRoot directory of chroot (Default: /)"
    echo "-n             \tDry run (i.e. do nothing actually)"
    echo "-q             \tSuppress message outputs"
    exit 0
fi

if [ ! -d "$chroot/" ]; then
    echo "chroot directory is not found: $2" >&2
    exit 1
fi

for i in `ldd $program | awk '$1~/^[0-9]/{print $NF}'`; do
    # Do nothing for the program itself
    if [ $program = $i ]; then
        continue
    fi

    # Create a necessary directory
    if [ ! -d `dirname $chroot/$i` ]; then
        $dryrun /bin/mkdir -p `dirname $chroot/$i` || exit 1
    fi

    # Copy a library file
    if [ -f "$chroot/$i" ]; then
        $silent || echo "SKIP: $i -> $chroot/$i"
    else
        $dryrun /bin/cp $i $chroot/$i || exit 1
        $silent || echo "COPY: $i -> $chroot/$i"
    fi

    # Copy libraries recursively
    $0 `test "$chroot" && echo "-c $chroot"` `test "$dryrun" && echo "-n"` `$silent && echo "-q"` $i || exit 1
done