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160 lines
3.4 KiB
160 lines
3.4 KiB
#!/bin/sh -e
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# NEEDED: lz4 readelf tar cat awk cut sed sh sort
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WORKDIR="$(basename "$1")"
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if [ -z "$LIBPATH" ]; then
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LIBPATH='/lib'
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fi
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PAYLOAD_SCRIPT='payload'
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LIBLIST="$WORKDIR"/liblist
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SUMFILE="$WORKDIR"/checksum
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tmpfile="$WORKDIR"/tt
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die ()
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{
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echo "$1"
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exit
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}
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getlibs ()
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{
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tmplist="$WORKDIR"/tmplist
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touch "$LIBLIST"
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# Take the executable and get the first level dependencies
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readelf -d "$1" |
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grep NEEDED |
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awk '{print $5}' |
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sed s/\\[// | sed s/\\]// > "$tmplist"
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# While there are more dependencies
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while [ "$(cat "$tmplist")" ]; do
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# Add them to the master file
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cat "$LIBLIST" "$tmplist" > "$tmpfile"
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mv -f "$tmpfile" "$LIBLIST"
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# Copy them to lib/
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while read -r l; do
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( IFS=:
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for p in $LIBPATH; do
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find -L "$p" -maxdepth 2 -name "$l" -exec cp -n {} "$WORKDIR"/lib/ \;
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done
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)
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done < "$tmplist"
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# Extract their dependencies
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touch "$tmpfile"
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for f in "$WORKDIR"/lib/*; do
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if grep -Fq "$(basename "$f")" "$tmplist"; then
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readelf -d "$f" |
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grep NEEDED |
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awk '{print $5}' |
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sed s/\\[// | sed s/\\]// >> "$tmpfile"
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fi
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done
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sort -u "$tmpfile" > "$tmplist"
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done
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sort -u "$LIBLIST" > "$tmpfile"
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mv -f "$tmpfile" "$LIBLIST"
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rm -f "$tmplist"
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}
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if ! [ "$WORKDIR" ]; then
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die 'Not enough arguments'
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fi
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if ! [ -d "$WORKDIR" ]; then
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die 'Argument is not a directory'
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fi
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if [ -e "$WORKDIR"/bin ]; then
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if ! [ -d "$WORKDIR"/bin ]; then
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die 'bin/ is not a directory'
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fi
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else
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die 'Directory does not contain bin/'
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fi
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if ! [ -e "$WORKDIR"/id ]; then
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die 'id file not present'
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fi
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if [ "$(ls -1 "$WORKDIR"/bin)" ]; then
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for f in "$WORKDIR"/bin/*; do
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if ! [ -x "$f" ]; then
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die "$f is not executable"
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fi
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done
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else
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die 'bin/ is empty, there has to be at least one executable'
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fi
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# Create necessary directories and files
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mkdir -p "$WORKDIR"/lib
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mkdir -p "$WORKDIR"/ext
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mkdir -p "$WORKDIR"/man
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touch "$WORKDIR"/env
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# TODO: add usage and error checking
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DIRNAME="$WORKDIR"/"$(head -1 "$WORKDIR"/id | awk '{print $1}')"
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echo "Fetching dependencies..."
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if [ -s "$WORKDIR"/deps ]; then
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while read -r d; do
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( IFS=:
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for p in $PATH; do
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find -L "$p" -maxdepth 2 -name "$d" -exec cp -n {} "$WORKDIR"/bin/ \;
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done
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)
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done < "$tmplist"
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fi
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echo "Fetching libraries and stripping binaries..."
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# TODO: get al binary dependencies from deps file
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# Get all dependencies and strip them
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for b in "$WORKDIR"/bin/*; do
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getlibs "$b"
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strip "$b"
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done
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echo "Stripping libraries..."
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for l in "$WORKDIR"/lib/*; do
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strip "$l"
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done
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echo "Compressing destination directory..."
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if [ -d "$DIRNAME" ]; then
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rm -rf "$DIRNAME"
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fi
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mkdir -p "$DIRNAME"
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cp -r "$WORKDIR"/bin "$DIRNAME"/
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cp -r "$WORKDIR"/lib "$DIRNAME"/
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cp -r "$WORKDIR"/man "$DIRNAME"/
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cp -r "$WORKDIR"/ext "$DIRNAME"/
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cp "$WORKDIR"/env "$DIRNAME"/
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cp "$WORKDIR"/id "$DIRNAME"/
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tar -c -f "$DIRNAME".tar -C "$WORKDIR" "$(basename "$DIRNAME")"
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md5sum -b "$DIRNAME".tar | cut -d " " -f1 > "$SUMFILE"
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lz4 --rm -9 -c "$DIRNAME.tar" > "$DIRNAME".tar.lz4
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echo "Injecting payload..."
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sed s/SUM/"$(cat "$SUMFILE")"/ "$PAYLOAD_SCRIPT" |
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sed s/ID/"$(basename "$DIRNAME")"/ |
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awk '!/^ *#/ && NF' > tpp
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size="$(wc -c tpp | cut -d " " -f1)"
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strsize="$(echo "BYTES" | wc -c)"
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numsize="$(echo "$size" | wc -c)"
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normsize="$((size - (strsize - numsize) + 1))"
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sed s/BYTES/"$normsize"/ tpp > tpr
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cat tpr "$DIRNAME".tar.lz4 > "$DIRNAME".tin
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echo "Cleaning up..."
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rm -f tpr tpp
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chmod +x "$DIRNAME".tin
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rm -rf "$DIRNAME" "$DIRNAME".tar*
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