DESCRIPTION = "BusyBox combines tiny versions of many common UNIX utilities into a single \
small executable. It provides minimalist replacements for most of the \
utilities you usually find in GNU fileutils, shellutils, etc. The utilities \
in BusyBox generally have fewer options than their full-featured GNU \
cousins; however, the options that are included provide the expected \
functionality and behave very much like their GNU counterparts. BusyBox \
provides a fairly complete POSIX environment for any small or embedded \
system."
HOMEPAGE = "http://www.busybox.net"
LICENSE = "GPLv2"
SECTION = "base"
PRIORITY = "required"

INC_PR = "r34"

SRC_URI = "\
  file://busybox-cron \
  file://busybox-httpd \
  file://busybox-udhcpd \
  file://default.script file://simple.script \
  file://dhcp-hostname.patch \
  file://hwclock.sh \
  file://hwclock-default \
  file://ifupdown-spurious-environ.patch \
  file://mount.busybox \
  file://syslog \
  file://syslog.conf \
  file://udhcpscript.patch \
  file://umount.busybox \
"

SRC_URI_append_nylon = " file://xargs-double-size.patch"

export EXTRA_CFLAGS = "${CFLAGS}"
EXTRA_OEMAKE_append = " CROSS=${HOST_PREFIX}"
PACKAGES =+ "${PN}-mountall ${PN}-httpd ${PN}-syslog ${PN}-udhcpd"

# We need this RRECOMMENDS_${PN} because libc dlopens libgcc
# and shlib mechanism can not detect it because its not
# listed in the NEEDED field.
RRECOMMENDS_${PN} += "libgcc"

FILES_${PN}-mountall = "${sysconfdir}/default/mountall.${PN}"
RDEPENDS_${PN} += "${PN}-mountall"

# Make busybox recommend busybox-syslog for those images that expect it
RRECOMMENDS_${PN} += "libgcc ${PN}-syslog"

FILES_${PN}-httpd = "${sysconfdir}/init.d/busybox-httpd /srv/www"
FILES_${PN}-syslog = "${sysconfdir}/init.d/syslog.${PN} ${sysconfdir}/syslog.conf"
FILES_${PN}-udhcpd = "${sysconfdir}/init.d/busybox-udhcpd"

FILES_${PN} += "${datadir}/udhcpc"

# syslog initscript is handled explicitly because order of
# update-rc.d and update-alternatives is important (see below)
INITSCRIPT_PACKAGES = "${PN}-httpd ${PN}-udhcpd"
INITSCRIPT_NAME_${PN}-httpd = "busybox-httpd"
INITSCRIPT_NAME_${PN}-syslog = "syslog"
INITSCRIPT_NAME_${PN}-udhcpd = "busybox-udhcpd"
CONFFILES_${PN}-syslog = "${sysconfdir}/syslog.conf"

# This disables the syslog startup links in slugos (see slugos-init)
INITSCRIPT_PARAMS_${PN}-syslog_slugos = "start 20 ."

RDEPENDS_${PN}-httpd += "${PN}"
RDEPENDS_${PN}-syslog += "${PN}"
RDEPENDS_${PN}-udhcpd += "${PN}"

# Use gcc for linking so LDFLAGS actually makes sense
LD = "${CC} -nostdlib"

inherit cml1 update-rc.d
require busybox-config.inc

configmangle = '/CROSS_COMPILER_PREFIX/d; \
		/CONFIG_EXTRA_CFLAGS/d; \
		'
OE_FEATURES := "${@features_to_busybox_conf(d)}"
OE_DEL      := "${@features_to_busybox_del(d)}"
DO_IPv4 := ${@base_contains('DISTRO_FEATURES', 'ipv4', 1, 0, d)}
DO_IPv6 := ${@base_contains('DISTRO_FEATURES', 'ipv6', 1, 0, d)}
python () {
  if "${OE_DEL}":
    bb.data.setVar('configmangle_append', "${OE_DEL}" + "\n", d)
  if "${OE_FEATURES}":
    bb.data.setVar('configmangle_append',
                   "/^### DISTRO FEATURES$/a\\\n%s\n\n" %
                   ("\\n".join((bb.data.expand("${OE_FEATURES}", d).split("\n")))),
                   d)
  bb.data.setVar('configmangle_append',
                 "/^### CROSS$/a\\\n%s\n" %
                  ("\\n".join(["CONFIG_CROSS_COMPILER_PREFIX=\"${TARGET_PREFIX}\"",
			       "CONFIG_EXTRA_CFLAGS=\"${CFLAGS}\""
                        ])
                  ),
                 d)
}

do_configure () {
	sed -e 's#@DATADIR@#${datadir}#g' \
		< ${WORKDIR}/defconfig > ${S}/.config
	for i in 'CROSS' 'DISTRO FEATURES'; do echo "### $i"; done >> \
		${S}/.config
	sed -i -e '${configmangle}' ${S}/.config
	if test ${DO_IPv4} -eq 0 && test ${DO_IPv6} -eq 0; then
	  # disable networking applets
	  mv ${S}/.config ${S}/.config.oe-tmp
	  awk 'BEGIN{net=0}
	  /^# Networking Utilities/{net=1}
	  /^#$/{if(net){net=net+1}}
	  {if(net==2&&$0 !~ /^#/&&$1){print("# "$1" is not set")}else{print}}' \
		  ${S}/.config.oe-tmp > ${S}/.config
	fi
	cml1_do_configure
}

do_compile() {
	unset CFLAGS CPPFLAGS CXXFLAGS
	base_do_compile
	# Busybox will force a strip, we do not want that.  Future-proof
	# in case later versions do this better.
	cp busybox_unstripped busybox || true
}

do_install () {
	oe_runmake busybox.links
	if [ "${prefix}" != "/usr" ]; then
		sed "s:^/usr/:${prefix}/:" busybox.links > busybox.links.new
		mv busybox.links.new busybox.links
	fi
	if [ "${base_sbindir}" != "/sbin" ]; then
		sed "s:^/sbin/:${base_sbindir}/:" busybox.links > busybox.links.new
		mv busybox.links.new busybox.links
	fi

	install -d ${D}${sysconfdir}/init.d

	if ! grep -q "CONFIG_FEATURE_INDIVIDUAL=y" ${WORKDIR}/defconfig; then
		# Install /bin/busybox, and the /bin/sh link so the postinst script
		# can run. Let update-alternatives handle the rest.
		install -d ${D}${base_bindir}
		if grep -q "CONFIG_FEATURE_SUID=y" ${WORKDIR}/defconfig; then
			install -m 4755 ${S}/busybox ${D}${base_bindir}
		else
			install -m 0755 ${S}/busybox ${D}${base_bindir}
		fi
		ln -sf busybox ${D}${base_bindir}/sh
	else
		install -d ${D}${base_bindir} ${D}${base_sbindir}
		install -d ${D}${libdir} ${D}${bindir} ${D}${sbindir}
		cat busybox.links | while read FILE; do
			NAME=`basename "$FILE"`
			install -m 0755 "0_lib/$NAME" "${D}$FILE.${PN}"
		done
		# add suid bit where needed
		for i in `grep -E "APPLET.*_BB_SUID_((MAYBE|REQUIRE))" include/applets.h | grep -v _BB_SUID_DROP | cut -f 3 -d '(' | cut -f 1 -d ','`; do
			find ${D} -name $i.${PN} -exec chmod a+s {} \;
		done
		install -m 0755 0_lib/libbusybox.so.${PV} ${D}${libdir}/libbusybox.so.${PV}
		ln -sf sh.${PN} ${D}${base_bindir}/sh
		ln -sf ln.${PN} ${D}${base_bindir}/ln
		ln -sf test.${PN} ${D}${bindir}/test
		if [ -f ${D}/linuxrc.${PN} ]; then
			mv ${D}/linuxrc.${PN} ${D}/linuxrc
		fi
	fi

	if grep -q "CONFIG_SYSLOGD=y" ${WORKDIR}/defconfig; then
		install -m 0755 ${WORKDIR}/syslog ${D}${sysconfdir}/init.d/syslog.${PN}
		install -m 644 ${WORKDIR}/syslog.conf ${D}${sysconfdir}/
	fi
	if grep "CONFIG_CROND=y" ${WORKDIR}/defconfig; then
		install -m 0755 ${WORKDIR}/busybox-cron ${D}${sysconfdir}/init.d/
	fi
	if grep "CONFIG_HTTPD=y" ${WORKDIR}/defconfig; then
		install -m 0755 ${WORKDIR}/busybox-httpd ${D}${sysconfdir}/init.d/
		install -d ${D}/srv/www
	fi
	if grep "CONFIG_APP_UDHCPD=y" ${WORKDIR}/defconfig; then
		install -m 0755 ${WORKDIR}/busybox-udhcpd ${D}${sysconfdir}/init.d/
	fi
	if grep "CONFIG_HWCLOCK=y" ${WORKDIR}/defconfig; then
		install -d ${D}${sysconfdir}/default
		install -m 0755 ${WORKDIR}/hwclock.sh ${D}${sysconfdir}/init.d/
		install -m 0644 ${WORKDIR}/hwclock-default ${D}${sysconfdir}/default/hwclock
	fi
	if grep "CONFIG_APP_UDHCPC=y" ${WORKDIR}/defconfig; then
		install -d ${D}${sysconfdir}/udhcpc.d
		install -d ${D}${datadir}/udhcpc
                install -m 0755 ${WORKDIR}/simple.script ${D}${sysconfdir}/udhcpc.d/50default
		install -m 0755 ${WORKDIR}/default.script ${D}${datadir}/udhcpc/default.script
	fi
	if grep "CONFIG_FEATURE_MOUNT_FSTAB=y" ${WORKDIR}/defconfig; then
		install -d ${D}${sysconfdir}/default
		install -m 644 ${WORKDIR}/mountall ${D}${sysconfdir}/default/mountall.${PN}
	fi

	install -m 0644 ${S}/busybox.links ${D}${sysconfdir}
}

pkg_postinst_${PN} () {
	# If we are not making an image we create links for the utilities that doesn't exist
	# so the update-alternatives script will get the utilities it needs
	# (update-alternatives have no problem replacing links later anyway)
	test -n 2> /dev/null || alias test='busybox test'
	ln --help >/dev/null 2>&1 || alias ln='busybox ln'
	if test "x$D" = "x"; then
		while read link; do
			if test ! -h "$link"; then
				if test -f "$link.busybox"; then
					to="$link.busybox"
				else
					case "$link" in
						/*/*/*) to="../../bin/busybox";;
						/bin/*) to="busybox";;
						/*/*) to="../bin/busybox";;
						/*) to="/bin/busybox";;
					esac
				fi
				ln -s $to $link
			fi
		done </etc/busybox.links
	fi

	# This adds the links, remember that this has to work when building an image too, hence the $D
	set +e
	while read link; do
		if test -f "$D$link.${PN}"; then
			to="$link.${PN}"
		else
			case "$link" in
				/*/*/*) to="../../bin/busybox";;
				/bin/*) to="busybox";;
				/*/*) to="../bin/busybox";;
				/*) to="/bin/busybox";;
			esac
		fi
		bn=`basename $link`
		update-alternatives --install $link $bn $to 50
	done <$D/etc/busybox.links
	set -e
}

pkg_postinst_${PN}-mountall () {
	update-alternatives --install ${sysconfdir}/default/mountall default_mountall mountall.${PN} 50
}
pkg_prerm_${PN}-mountall () {
	update-alternatives --remove default_mountall mountall.${PN}
}

pkg_postinst_${PN}-syslog () {
	update-alternatives --install ${sysconfdir}/init.d/syslog syslog-init syslog.${PN} 50

	if test "x$D" != "x"; then
		OPT="-r $D"
	else
		OPT="-s"
	fi
	# remove all rc.d-links potentially created from alternative
	# syslog packages before creating new ones
	update-rc.d $OPT -f syslog remove
	update-rc.d $OPT syslog start 20 2 3 4 5 . stop 90 0 1 6 .
}

pkg_prerm_${PN}-syslog () {
	if test "x$D" = "x"; then
		if test "$1" = "upgrade" -o "$1" = "remove"; then
			/etc/init.d/syslog stop
		fi
	fi

	update-alternatives --remove syslog-init syslog.${PN}
}

pkg_postrm_${PN}-syslog () {
	if test "x$D" != "x"; then
		OPT="-r $D"
	else
		OPT=""
	fi
	if test "$1" = "remove" -o "$1" = "purge"; then
		if ! test -e "/etc/init.d/syslog"; then
			update-rc.d $OPT syslog remove
		fi
	fi
}

pkg_prerm_${PN} () {
	# This is so you can make busybox commit suicide - removing busybox with no other packages
	# providing its files, this will make update-alternatives work, but the update-rc.d part
	# for syslog, httpd and/or udhcpd will fail if there is no other package providing sh
	tmpdir=`mktemp -d /tmp/busyboxrm-XXXXXX`
	ln -s /bin/busybox $tmpdir/[
	ln -s /bin/busybox $tmpdir/test
	ln -s /bin/busybox $tmpdir/head
	ln -s /bin/busybox $tmpdir/sh
	ln -s /bin/busybox $tmpdir/basename
	ln -s /bin/busybox $tmpdir/echo
	ln -s /bin/busybox $tmpdir/mv
	ln -s /bin/busybox $tmpdir/ln
	ln -s /bin/busybox $tmpdir/dirname
	ln -s /bin/busybox $tmpdir/rm
	ln -s /bin/busybox $tmpdir/sed
	ln -s /bin/busybox $tmpdir/sort
	export PATH=$PATH:$tmpdir

	while read link
	do
		case "$link" in
			/*/*/*) to="../../bin/busybox";;
			/bin/*) to="busybox";;
			/*/*) to="../bin/busybox";;
			/*) to="/bin/busybox";;
		esac
		bn=`basename $link`
		sh /usr/bin/update-alternatives --remove $bn $to
	done </etc/busybox.links
}

PACKAGES =+ "${PN}-mdev"
FILES_${PN}-mdev = "${sysconfdir}/mdev ${sysconfdir}/mdev.conf ${sysconfdir}/init.d/mdev"
RDEPENDS_${PN}-mdev += "${PN}"

PACKAGES =+ "${PN}-linuxrc"
FILES_${PN}-linuxrc = "linuxrc"
RDEPENDS_${PN}-linuxrc += "${PN}"

pkg_postinst_${PN}-mdev() {
if test "x$D" != "x"; then
	OPT="-r $D"
else
	OPT="-s"
fi
	update-rc.d $OPT mdev start 06 S .
}