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#!/bin/bash
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#
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# Initial script for Live operating system
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# This script are launching before starting init from linux-live script.
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# Current dir allways must be set to root (/)
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# All system path must be relative, except initrd dirs
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ENABLED=yes
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[[ ${ENABLED} != yes ]] && exit 0
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DEBUGMODE=no
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PATH=.:/:/usr/bin:/usr/local/bin:/usr/local/sbin
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unset ROOTFS; [[ -d /usr/lib/ublinux ]] || ROOTFS=.
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SOURCE=${ROOTFS}/usr/lib/ublinux/functions; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null || exit 0
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SOURCE=${ROOTFS}/usr/lib/ublinux/os-config; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null || exit 0
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debug_mode "$0" "$@"
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SYSCONF="${ROOTFS}/${SYSCONF}"
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SOURCE=${SYSCONF}/config; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null
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SOURCE=${SYSCONF}/network; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null
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exec_hostname(){
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local PARAM="$@"
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[[ -n ${PARAM} ]] && eval "${PARAM%%=*}='${PARAM#*=}'"
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SET_HOSTNAME="${HOSTNAME}"
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[[ -z ${SET_HOSTNAME} ]] && SET_HOSTNAME=ublinux-live
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tail -c1 -- hosts | grep -qx $'\n' || echo >> ${ROOTFS}/etc/hosts
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HOSTS_1="127.0.0.1 sb-ssl.l.google.com safebrowsing.clients.google.com safebrowsing.cache.l.google.com"
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grep -q "^\s*${HOSTS_1}\s*$" ${ROOTFS}/etc/hosts || echo "${HOSTS_1}" >> ${ROOTFS}/etc/hosts
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HOSTS_2="127.0.0.1 ${SET_HOSTNAME%%.*}"
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grep -q "^\s*${HOSTS_2}\s*$" ${ROOTFS}/etc/hosts || echo "${HOSTS_2}" >> ${ROOTFS}/etc/hosts
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echo "${SET_HOSTNAME}" > ${ROOTFS}/etc/hostname
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[[ ${SET_HOSTNAME} != ${SET_HOSTNAME#*.} ]] && DOMAIN="${SET_HOSTNAME#*.}"
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if [[ ${DOMAIN} != "" ]]; then
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HOSTNAME="${SET_HOSTNAME%%.*}.${DOMAIN}"
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HOSTS_3="127.0.0.1 ${SET_HOSTNAME}"
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grep -q "^\s*${HOSTS_3}\s*$" ${ROOTFS}/etc/hosts || echo "${HOSTS_3}" >> ${ROOTFS}/etc/hosts
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## Указать доменных пользователей AccountsService, что-бы были видны для выбора логина в DM
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ls -d ${ROOTFS}/home/*@*/ 2>/dev/null | xargs -ri basename {} | xargs -ri touch ${ROOTFS}/var/lib/AccountsService/users/{}
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## Домен для сервера dhcpd
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sed s/"option domain-name .*"/"option domain-name \"${DOMAIN}\";"/g -i ${ROOTFS}/etc/dhcpd.conf
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sed s/"option nis-domain .*"/"option nis-domain \"${DOMAIN}\";"/g -i ${ROOTFS}/etc/dhcpd.conf
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## Имя хоста записать в конфиг с постфиксом домена
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sed /^HOSTNAME=/d -i ${ROOTFS}/etc/ublinux/config
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echo "HOSTNAME=${SET_HOSTNAME}" >> ${ROOTFS}/etc/ublinux/config
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fi
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}
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exec_hostname_live(){
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[[ -z ${ROOTFS} ]] || return 0
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local PARAM="$@"
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[[ -n ${PARAM} ]] && eval "${PARAM%%=*}='${PARAM#*=}'"
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SET_HOSTNAME="${HOSTNAME}"
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[[ -z ${SET_HOSTNAME} ]] && SET_HOSTNAME=ublinux-live
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[[ ${SET_HOSTNAME} != ${SET_HOSTNAME#*.} ]] && DOMAIN="${SET_HOSTNAME#*.}"
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[[ ${DOMAIN} != "" ]] && ubconfig -q set network DOMAIN="${DOMAIN}"
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hostnamectl set-hostname ${SET_HOSTNAME}
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## Если меняется имя хоста в запущенных X, то новое имя добавляем в xauth
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who | grep "(:[0-9.]*)$" | cut -d' ' -f1 | xargs -ri su {} -c "xauth list | sed 's|^.*/|su {} -c \\\\\"xauth add ${SET_HOSTNAME}/|;s|$|\\\\\"|'" | xargs -ri sh -c '{}'
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}
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################
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##### MAIN #####
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################
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if [[ -z $@ || $1 == set ]]; then
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shift
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KERNEL_HOSTNAME=$(cmdline_value hostname)
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[[ ${KERNEL_HOSTNAME} == "" ]] || HOSTNAME=${KERNEL_HOSTNAME}
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exec_hostname $@
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exec_hostname_live $@
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elif [[ $1 == remove ]]; then
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shift
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exec_hostname $@
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exec_hostname_live $@
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fi
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