SliTaz Packages

Receipt for package "busybox-boot"

# SliTaz package receipt.

PACKAGE="busybox-boot"
VERSION="1.31.1"
CATEGORY="base-system"
SHORT_DESC="Many common UNIX utilities for core-5in1/boot flavor."
MAINTAINER="pascal.bellard@slitaz.org"
LICENSE="GPL2"
WEB_SITE="https://busybox.net/"
CONFIG_FILES=""

WANTED="busybox"
DEPENDS="linux syslinux"

# Rules to gen a SliTaz package suitable for Tazpkg.
genpkg_rules()
{
    mkdir -p $fs/usr/share/boot/bin $fs/usr/share/boot/dev
    jslinux=false
    CHOICE=static
    for i in uclibc musl ; do # diet's busybox umount crash
        [ -x $src/busybox-$i ] || continue
        [ -x $src/busybox-$CHOICE ] &&
            [ $(stat -c %s $src/busybox-$i) -ge \
              $(stat -c %s $src/busybox-$CHOICE) ] &&
            continue
        CHOICE=$i
    done
    cp -a $src/busybox-$CHOICE $fs/usr/share/boot/bin/busybox
    chmod 4755 $fs/usr/share/boot/bin/busybox
    mknod -m 660 $fs/usr/share/boot/dev/console c 5 1
    mknod -m 771 $fs/usr/share/boot/dev/null c 1 3
    mknod -m 660 $fs/usr/share/boot/dev/tty c 5 0
    mknod -m 660 $fs/usr/share/boot/dev/tty1 c 4 1
    if $jslinux; then
        mknod -m 644 $fs/usr/share/boot/dev/clipboard c 10 231
        mknod -m 660 $fs/usr/share/boot/dev/ttyS0 c 4 64
    fi
    cat > $fs/usr/share/boot/init <<EOT
#!/bin/busybox sh

export PATH=/bin
export HOME=/
export TERM=vt100

if [ -d /etc ]; then
    [ -n "\$domain" ] && echo search \$domain > /etc/resolv.conf
    for i in \$dns ; do echo nameserver \$i; done >> /etc/resolv.conf
    [ -n "\$broadcast" ] && BROADCAST="broadcast \$broadcast"
    [ -n "\$subnet" ] && NETMASK="netmask \$subnet"
    if ifconfig \$interface \${ip:-0.0.0.0} \$BROADCAST \$NETMASK ; then
        while route del default gw 0.0.0.0 dev \$interface ; do : ; done
        for i in \$router ; do route add default gw \$i dev \$interface; done
    fi
    exit
fi

mkdir /tmp /mnt /proc /etc
mount -t proc none /proc
mount -t devtmpfs none /dev

arg()
{
root="\$(sed "s/^/ /;s/\$/ /;/ \$1=/!d;s/.* \$1=\\([^ ]*\\).*/\\1/" </proc/cmdline)"
[ -n "\$root" ]
}

arg init
init=\${root:-/sbin/init}
[ -n "\$(sed 's/\$/ /;s/^/ /;/ ro /!d' /proc/cmdline)" ] && ro="-o ro"
[ -n "\$(sed 's/\$/ /;s/^/ /;/ rw /!d' /proc/cmdline)" ] && ro="-o rw"
arg root && root="\$(echo \$root | sed 's|/|\\\\/|g')" &&
    root="\$(blkid | sed "s/\"//g;/\$root/!d;s/:.*//;q")" &&
    [ -n "\$root" ] && mount \$ro \$root /mnt
arg loopfs && losetup /dev/loop0 /mnt/\$root && mount /dev/loop0 /mnt
arg subroot && cp /bin/busybox /mnt/\$root/dev/shm &&
    chroot="\$root/dev/shm/busybox chroot \$root"
[ -x /mnt/\$root/\$init ] && umount /dev && umount /proc && exec switch_root mnt \$chroot \$init

[ -d /proc/bus/usb ] && mount -t usbfs usbfs /proc/bus/usb
while read type dir ; do
    grep -qs \$type /proc/filesystems || continue
    [ -d "\$dir" ] || mkdir \$dir
    mount -t \$type none \$dir
done <<EOM
sysfs        /sys
devpts        /dev/pts
EOM

TTY=\$(tty 2>/dev/null)
TTY=\${TTY:-/dev/tty1}
EOT
    $jslinux && echo 'stty -F $TTY rows 30 2>/dev/null' >> $fs/usr/share/boot/init
    cat >> $fs/usr/share/boot/init <<EOT

udhcpc -b -s /init
while true; do
    busybox | sed '/Current/,\$!d'
    setsid sh -c "exec sh <\$TTY >\$TTY 2>&1"
done
EOT
    chmod +x $fs/usr/share/boot/init
    ( cd $fs/usr/share/boot ; find bin dev init | cpio -o -H newc > initrd )
    rm -rf $fs/usr/share/boot/bin $fs/usr/share/boot/dev $fs/usr/share/boot/init
}