#!/bin/sh -e

kinstall_t() {
    # install -Dm* -t alternative
    # usage: kinstall_t 755 /usr/bin file file2 file3
    mod=$1 dir=$2; mkdir -p "$dir"
    shift 2
    for file; do
        cp "$file" "$dir"
        chmod "$mod" "$dir/$file"
    done
}

patch -p0 < CVE-2020-28928.patch

[ "$CPT_CROSS_TRIPLET" ] && CC=$CPT_CROSS_TRIPLET-cc AR=$CPT_CROSS_TRIPLET-ar

cpt-configure \
    --syslibdir=/usr/lib

make
make DESTDIR="$1" install

mkdir -p "$1/usr/bin"

ARCH=$(sed -n '/^ARCH =/s/.* //p' config.mak)
ln -sf libc.so                     "$1/usr/lib/ld-musl-$ARCH.so.1"
ln -s  "../lib/ld-musl-$ARCH.so.1" "$1/usr/bin/ldd"

# Install BSD compatibility headers.
kinstall_t 755 "$1/usr/include/sys" cdefs.h queue.h tree.h

# Install getconf.
"${CC:=cc}" --static getconf.c -o "$1/usr/bin/getconf"

"$CC" -c __stack_chk_fail_local.c -o __stack_chk_fail_local.o
"${AR:-ar}" r "$1/usr/lib/libssp_nonshared.a" __stack_chk_fail_local.o

# Install getent
kinstall_t 755 "$1/usr/bin" getent