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#!/bin/bash

function detect_version() {

    _tmpdir="/tmp/$$"

    mkdir -p $_tmpdir

    nash --force > /dev/null 2>&1 <<EOF
mount -t vfat LABEL=Share $_tmpdir
EOF
    if [ $? -eq 0 ]; then
        version="1.0"
    else
        version="1.05"
    fi
 
    umount $_tmpdir 2> /dev/null
    rmdir $_tmpdir 2> /dev/null
}

function check_vendor() {

    # list of supported vendors/models

    # mandriva flash 1.0 (france)
    vendors[0]="13fe"
    models[0]="1a00"
    # mandriva flash 1.0 (brazil)
    vendors[1]="0930"
    models[1]="653e"
    # mandriva flash 4GB (france)
    vendors[2]="13fe"
    models[2]="1d00"

    rc=1

    mount -t usbfs none /proc/bus/usb

    i=0
    while [ ! -z "${vendors[$i]}" ]; do

        grep "P:" /proc/bus/usb/devices | grep -q \
                "Vendor=${vendors[$i]} ProdID=${models[$i]}"
        if [ $? -eq 0 ]; then
            rc=0
            break
        fi

        let i++
    done

    umount /proc/bus/usb

    return $rc
}

function insert_pendrive() {

    _tmpdir="/tmp/rescue-temp"
    mkdir -p $_tmpdir

    modprobe usb-storage > /dev/null 2>&1
    modprobe vfat > /dev/null 2>&1

    echo
    echo -n 'Please insert your Mandriva Flash pen drive and press ENTER when ready: '
    read READY
    echo
    echo -n 'Detecting pen drive: '

    for ((i=0; $i <= 15 ; i++)); do
        nash --force > /dev/null 2>&1 <<EOF
mount -t vfat LABEL=MDVUSBROOT $_tmpdir
EOF
        if [ $? -ne 0 ]; then
            echo -n '.'
            sleep 1
        else
            echo -n ' found!'

            if ! check_vendor; then
                echo
                echo "This is not an official Mandriva Flash key!"
                echo
            fi

            cat /proc/mounts | grep $_tmpdir | cut -d' ' -f1 | \
                sed 's/[0-9]*$//g' > /tmp/rescue-device
            umount $_tmpdir
            rmdir $_tmpdir 2> /dev/null

            detect_version

            return 0
        fi
    done

    rmdir $_tmpdir 2> /dev/null

    echo
    echo
    echo "Couldn't detect Mandriva Flash pen drive!"
    echo

    return 1
}

function mount_usbroot() {

    nash --force > /dev/null 2>&1 <<EOF
mount -t vfat LABEL=MDVUSBROOT $1
EOF
    if [ $? -ne 0 ]; then
        echo "Error mounting device labeled MDVUSBROOT"
        return 1
    fi

    return 0
}

function mount_sharedroot() {

    nash --force > /dev/null 2>&1 <<EOF
mount -t vfat LABEL=Share $1
EOF
    if [ $? -ne 0 ]; then
        echo "Error mounting device labeled Share"
        return 1
    fi

    return 0
}

function progress() {

    echo -ne '\b|'
    usleep 100000
    echo -ne '\b/'
    usleep 100000
    echo -ne '\b-'
    usleep 100000
    echo -ne '\b\\'
    usleep 100000
}