- D.2. /lib/lsb/init-functions -

#!/bin/sh
-########################################################################
-#
-# Begin /lib/lsb/init-funtions
-#
-# Description : Run Level Control Functions
-#
-# Authors     : Gerard Beekmans - gerard@linuxfromscratch.org
-#             : DJ Lucas - dj@linuxfromscratch.org
-# Update      : Bruce Dubbs - bdubbs@linuxfromscratch.org
-#
-# Version     : LFS 7.0
-#
-# Notes       : With code based on Matthias Benkmann's simpleinit-msb
-#               http://winterdrache.de/linux/newboot/index.html
-#
-#               The file should be located in /lib/lsb
-#
-########################################################################
-
-## Environmental setup
-# Setup default values for environment
-umask 022
-export PATH="/bin:/usr/bin:/sbin:/usr/sbin"
-
-## Set color commands, used via echo
-# Please consult `man console_codes for more information
-# under the "ECMA-48 Set Graphics Rendition" section
-#
-# Warning: when switching from a 8bit to a 9bit font,
-# the linux console will reinterpret the bold (1;) to
-# the top 256 glyphs of the 9bit font.  This does
-# not affect framebuffer consoles
-
-NORMAL="\\033[0;39m"         # Standard console grey
-SUCCESS="\\033[1;32m"        # Success is green
-WARNING="\\033[1;33m"        # Warnings are yellow
-FAILURE="\\033[1;31m"        # Failures are red
-INFO="\\033[1;36m"           # Information is light cyan
-BRACKET="\\033[1;34m"        # Brackets are blue
-
-# Use a colored prefix
-BMPREFIX="      "
-SUCCESS_PREFIX="${SUCCESS}  *  ${NORMAL} "
-FAILURE_PREFIX="${FAILURE}*****${NORMAL} "
-WARNING_PREFIX="${WARNING} *** ${NORMAL} "
-SKIP_PREFIX="${INFO}  S   ${NORMAL}"
-
-SUCCESS_SUFFIX="${BRACKET}[${SUCCESS}  OK  ${BRACKET}]${NORMAL}"
-FAILURE_SUFFIX="${BRACKET}[${FAILURE} FAIL ${BRACKET}]${NORMAL}"
-WARNING_SUFFIX="${BRACKET}[${WARNING} WARN ${BRACKET}]${NORMAL}"
-SKIP_SUFFIX="${BRACKET}[${INFO} SKIP ${BRACKET}]${NORMAL}"
-
-BOOTLOG=/run/bootlog
-KILLDELAY=3
-SCRIPT_STAT="0"
-
-# Set any user specified environment variables e.g. HEADLESS
-[ -r /etc/sysconfig/rc.site ]  && . /etc/sysconfig/rc.site
-
-## Screen Dimensions
-# Find current screen size
-if [ -z "${COLUMNS}" ]; then
-   COLUMNS=$(stty size)
-   COLUMNS=${COLUMNS##* }
-fi
-
-# When using remote connections, such as a serial port, stty size returns 0
-if [ "${COLUMNS}" = "0" ]; then
-   COLUMNS=80
-fi
-
-## Measurements for positioning result messages
-COL=$((${COLUMNS} - 8))
-WCOL=$((${COL} - 2))
-
-## Set Cursor Position Commands, used via echo
-SET_COL="\\033[${COL}G"      # at the $COL char
-SET_WCOL="\\033[${WCOL}G"    # at the $WCOL char
-CURS_UP="\\033[1A\\033[0G"   # Up one line, at the 0'th char
-CURS_ZERO="\\033[0G"
-
-################################################################################
-# start_daemon()                                                               #
-# Usage: start_daemon [-f] [-n nicelevel] [-p pidfile] pathname [args...]      #
-#                                                                              #
-# Purpose: This runs the specified program as a daemon                         #
-#                                                                              #
-# Inputs: -f: (force) run the program even if it is already running.           #
-#         -n nicelevel: specify a nice level. See 'man nice(1)'.               #
-#         -p pidfile: use the specified file to determine PIDs.                #
-#         pathname: the complete path to the specified program                 #
-#         args: additional arguments passed to the program (pathname)          #
-#                                                                              #
-# Return values (as defined by LSB exit codes):                                #
-#       0 - program is running or service is OK                                #
-#       1 - generic or unspecified error                                       #
-#       2 - invalid or excessive argument(s)                                   #
-#       5 - program is not installed                                           #
-################################################################################
-start_daemon()
-{
-    local force=""
-    local nice="0"
-    local pidfile=""
-    local pidlist=""
-    local retval=""
-
-    # Process arguments
-    while true
-    do
-        case "${1}" in
-
-            -f)
-                force="1"
-                shift 1
-                ;;
-
-            -n)
-                nice="${2}"
-                shift 2
-                ;;
-
-            -p)
-                pidfile="${2}"
-                shift 2
-                ;;
-
-            -*)
-                return 2
-                ;;
-
-            *)
-                program="${1}"
-                break
-                ;;
-        esac
-    done
-
-    # Check for a valid program
-    if [ ! -e "${program}" ]; then return 5; fi
-
-    # Execute
-    if [ -z "${force}" ]; then
-        if [ -z "${pidfile}" ]; then
-            # Determine the pid by discovery
-            pidlist=`pidofproc "${1}"`
-            retval="${?}"
-        else
-            # The PID file contains the needed PIDs
-            # Note that by LSB requirement, the path must be given to pidofproc,
-            # however, it is not used by the current implementation or standard.
-            pidlist=`pidofproc -p "${pidfile}" "${1}"`
-            retval="${?}"
-        fi
-
-        # Return a value ONLY
-        # It is the init script's (or distribution's functions) responsibility
-        # to log messages!
-        case "${retval}" in
-
-            0)
-                # Program is already running correctly, this is a
-                # successful start.
-                return 0
-                ;;
-
-            1)
-                # Program is not running, but an invalid pid file exists
-                # remove the pid file and continue
-                rm -f "${pidfile}"
-                ;;
-
-            3)
-                # Program is not running and no pidfile exists
-                # do nothing here, let start_deamon continue.
-                ;;
-
-            *)
-                # Others as returned by status values shall not be interpreted
-                # and returned as an unspecified error.
-                return 1
-                ;;
-        esac
-    fi
-
-    # Do the start!
-    nice -n "${nice}" "${@}"
-}
-
-################################################################################
-# killproc()                                                                   #
-# Usage: killproc [-p pidfile] pathname [signal]                               #
-#                                                                              #
-# Purpose: Send control signals to running processes                           #
-#                                                                              #
-# Inputs: -p pidfile, uses the specified pidfile                               #
-#         pathname, pathname to the specified program                          #
-#         signal, send this signal to pathname                                 #
-#                                                                              #
-# Return values (as defined by LSB exit codes):                                #
-#       0 - program (pathname) has stopped/is already stopped or a             #
-#           running program has been sent specified signal and stopped         #
-#           successfully                                                       #
-#       1 - generic or unspecified error                                       #
-#       2 - invalid or excessive argument(s)                                   #
-#       5 - program is not installed                                           #
-#       7 - program is not running and a signal was supplied                   #
-################################################################################
-killproc()
-{
-    local pidfile
-    local program
-    local prefix
-    local progname
-    local signal="-TERM"
-    local fallback="-KILL"
-    local nosig
-    local pidlist
-    local retval
-    local pid
-    local delay="30"
-    local piddead
-    local dtime
-
-    # Process arguments
-    while true; do
-        case "${1}" in
-            -p)
-                pidfile="${2}"
-                shift 2
-                ;;
-
-             *)
-                 program="${1}"
-                 if [ -n "${2}" ]; then
-                     signal="${2}"
-                     fallback=""
-                 else
-                     nosig=1
-                 fi
-
-                 # Error on additional arguments
-                 if [ -n "${3}" ]; then
-                     return 2
-                 else
-                     break
-                 fi
-                 ;;
-        esac
-    done
-
-    # Check for a valid program
-    if [ ! -e "${program}" ]; then return 5; fi
-
-    # Check for a valid signal
-    check_signal "${signal}"
-    if [ "${?}" -ne "0" ]; then return 2; fi
-
-    # Get a list of pids
-    if [ -z "${pidfile}" ]; then
-        # determine the pid by discovery
-        pidlist=`pidofproc "${1}"`
-        retval="${?}"
-    else
-        # The PID file contains the needed PIDs
-        # Note that by LSB requirement, the path must be given to pidofproc,
-        # however, it is not used by the current implementation or standard.
-        pidlist=`pidofproc -p "${pidfile}" "${1}"`
-        retval="${?}"
-    fi
-
-    # Return a value ONLY
-    # It is the init script's (or distribution's functions) responsibility
-    # to log messages!
-    case "${retval}" in
-
-        0)
-            # Program is running correctly
-            # Do nothing here, let killproc continue.
-            ;;
-
-        1)
-            # Program is not running, but an invalid pid file exists
-            # Remove the pid file.
-
-            progname=${program##*/}
-
-            if [[ -e "/run/${progname}.pid" ]]; then
-                pidfile="/run/${progname}.pid"
-                rm -f "${pidfile}"
-            fi
-
-            # This is only a success if no signal was passed.
-            if [ -n "${nosig}" ]; then
-                return 0
-            else
-                return 7
-            fi
-            ;;
-
-        3)
-            # Program is not running and no pidfile exists
-            # This is only a success if no signal was passed.
-            if [ -n "${nosig}" ]; then
-                return 0
-            else
-                return 7
-            fi
-            ;;
-
-        *)
-            # Others as returned by status values shall not be interpreted
-            # and returned as an unspecified error.
-            return 1
-            ;;
-    esac
-
-    # Perform different actions for exit signals and control signals
-    check_sig_type "${signal}"
-
-    if [ "${?}" -eq "0" ]; then # Signal is used to terminate the program
-
-        # Account for empty pidlist (pid file still exists and no
-        # signal was given)
-        if [ "${pidlist}" != "" ]; then
-
-            # Kill the list of pids
-            for pid in ${pidlist}; do
-
-                kill -0 "${pid}" 2> /dev/null
-
-                if [ "${?}" -ne "0" ]; then
-                    # Process is dead, continue to next and assume all is well
-                    continue
-                else
-                    kill "${signal}" "${pid}" 2> /dev/null
-
-                    # Wait up to ${delay}/10 seconds to for "${pid}" to
-                    # terminate in 10ths of a second
-
-                    while [ "${delay}" -ne "0" ]; do
-                        kill -0 "${pid}" 2> /dev/null || piddead="1"
-                        if [ "${piddead}" = "1" ]; then break; fi
-                        sleep 0.1
-                        delay="$(( ${delay} - 1 ))"
-                    done
-
-                    # If a fallback is set, and program is still running, then
-                    # use the fallback
-                    if [ -n "${fallback}" -a "${piddead}" != "1" ]; then
-                        kill "${fallback}" "${pid}" 2> /dev/null
-                        sleep 1
-                        # Check again, and fail if still running
-                        kill -0 "${pid}" 2> /dev/null && return 1
-                    fi
-                fi
-            done
-        fi
-
-        # Check for and remove stale PID files.
-        if [ -z "${pidfile}" ]; then
-            # Find the basename of $program
-            prefix=`echo "${program}" | sed 's/[^/]*$//'`
-            progname=`echo "${program}" | sed "s@${prefix}@@"`
-
-            if [ -e "/run/${progname}.pid" ]; then
-                rm -f "/run/${progname}.pid" 2> /dev/null
-            fi
-        else
-            if [ -e "${pidfile}" ]; then rm -f "${pidfile}" 2> /dev/null; fi
-        fi
-
-    # For signals that do not expect a program to exit, simply
-    # let kill do its job, and evaluate kill's return for value
-
-    else # check_sig_type - signal is not used to terminate program
-        for pid in ${pidlist}; do
-            kill "${signal}" "${pid}"
-            if [ "${?}" -ne "0" ]; then return 1; fi
-        done
-    fi
-}
-
-################################################################################
-# pidofproc()                                                                  #
-# Usage: pidofproc [-p pidfile] pathname                                       #
-#                                                                              #
-# Purpose: This function returns one or more pid(s) for a particular daemon    #
-#                                                                              #
-# Inputs: -p pidfile, use the specified pidfile instead of pidof               #
-#         pathname, path to the specified program                              #
-#                                                                              #
-# Return values (as defined by LSB status codes):                              #
-#       0 - Success (PIDs to stdout)                                           #
-#       1 - Program is dead, PID file still exists (remaining PIDs output)     #
-#       3 - Program is not running (no output)                                 #
-################################################################################
-pidofproc()
-{
-    local pidfile
-    local program
-    local prefix
-    local progname
-    local pidlist
-    local lpids
-    local exitstatus="0"
-
-    # Process arguments
-    while true; do
-        case "${1}" in
-
-            -p)
-                pidfile="${2}"
-                shift 2
-                ;;
-
-            *)
-                program="${1}"
-                if [ -n "${2}" ]; then
-                    # Too many arguments
-                    # Since this is status, return unknown
-                    return 4
-                else
-                    break
-                fi
-                ;;
-        esac
-    done
-
-    # If a PID file is not specified, try and find one.
-    if [ -z "${pidfile}" ]; then
-        # Get the program's basename
-        prefix=`echo "${program}" | sed 's/[^/]*$//'`
-
-        if [ -z "${prefix}" ]; then
-           progname="${program}"
-        else
-           progname=`echo "${program}" | sed "s@${prefix}@@"`
-        fi
-
-        # If a PID file exists with that name, assume that is it.
-        if [ -e "/run/${progname}.pid" ]; then
-            pidfile="/run/${progname}.pid"
-        fi
-    fi
-
-    # If a PID file is set and exists, use it.
-    if [ -n "${pidfile}" -a -e "${pidfile}" ]; then
-
-        # Use the value in the first line of the pidfile
-        pidlist=`/bin/head -n1 "${pidfile}"`
-        # This can optionally be written as 'sed 1q' to repalce 'head -n1'
-        # should LFS move /bin/head to /usr/bin/head
-    else
-        # Use pidof
-        pidlist=`pidof "${program}"`
-    fi
-
-    # Figure out if all listed PIDs are running.
-    for pid in ${pidlist}; do
-        kill -0 ${pid} 2> /dev/null
-
-        if [ "${?}" -eq "0" ]; then
-            lpids="${lpids}${pid} "
-        else
-            exitstatus="1"
-        fi
-    done
-
-    if [ -z "${lpids}" -a ! -f "${pidfile}" ]; then
-        return 3
-    else
-        echo "${lpids}"
-        return "${exitstatus}"
-    fi
-}
-
-################################################################################
-# statusproc()                                                                 #
-# Usage: statusproc [-p pidfile] pathname                                      #
-#                                                                              #
-# Purpose: This function prints the status of a particular daemon to stdout    #
-#                                                                              #
-# Inputs: -p pidfile, use the specified pidfile instead of pidof               #
-#         pathname, path to the specified program                              #
-#                                                                              #
-# Return values:                                                               #
-#       0 - Status printed                                                     #
-#       1 - Input error. The daemon to check was not specified.                #
-################################################################################
-statusproc()
-{
-   local pidfile
-   local pidlist
-
-   if [ "${#}" = "0" ]; then
-      echo "Usage: statusproc [-p pidfle] {program}"
-      exit 1
-   fi
-
-   # Process arguments
-   while true; do
-       case "${1}" in
-
-           -p)
-               pidfile="${2}"
-               shift 2
-               ;;
-
-           *)
-               if [ -n "${2}" ]; then
-                   echo "Too many arguments"
-                   return 1
-               else
-                   break
-               fi
-               ;;
-       esac
-   done
-
-   if [ -n "${pidfile}" ]; then
-      pidlist=`pidofproc -p "${pidfile}" $@`
-   else
-      pidlist=`pidofproc $@`
-   fi
-
-   # Trim trailing blanks
-   pidlist=`echo "${pidlist}" | sed -r 's/ +$//'`
-
-   base="${1##*/}"
-
-   if [ -n "${pidlist}" ]; then
-      /bin/echo -e "${INFO}${base} is running with Process" \
-         "ID(s) ${pidlist}.${NORMAL}"
-   else
-      if [ -n "${base}" -a -e "/run/${base}.pid" ]; then
-         /bin/echo -e "${WARNING}${1} is not running but" \
-            "/run/${base}.pid exists.${NORMAL}"
-      else
-         if [ -n "${pidfile}" -a -e "${pidfile}" ]; then
-            /bin/echo -e "${WARNING}${1} is not running" \
-               "but ${pidfile} exists.${NORMAL}"
-         else
-            /bin/echo -e "${INFO}${1} is not running.${NORMAL}"
-         fi
-      fi
-   fi
-}
-
-################################################################################
-# timespec()                                                                   #
-#                                                                              #
-# Purpose: An internal utility function to format a timestamp                  #
-#          a boot log file.  Sets the STAMP variable.                          #
-#                                                                              #
-# Return value: Not used                                                       #
-################################################################################
-timespec()
-{
-   STAMP="$(echo `date +"%b %d %T %:z"` `hostname`) "
-   return 0
-}
-
-################################################################################
-# log_success_msg()                                                            #
-# Usage: log_success_msg ["message"]                                           #
-#                                                                              #
-# Purpose: Print a successful status message to the screen and                 #
-#          a boot log file.                                                    #
-#                                                                              #
-# Inputs: $@ - Message                                                         #
-#                                                                              #
-# Return values: Not used                                                      #
-################################################################################
-log_success_msg()
-{
-    /bin/echo -n -e "${BMPREFIX}${@}"
-    /bin/echo -e "${CURS_ZERO}${SUCCESS_PREFIX}${SET_COL}${SUCCESS_SUFFIX}"
-
-    # Strip non-printable characters from log file
-    logmessage=`echo "${@}" | sed 's/\\\033[^a-zA-Z]*.//g'`
-
-    timespec
-    /bin/echo -e "${STAMP} ${logmessage} OK" >> ${BOOTLOG}
-
-    return 0
-}
-
-log_success_msg2()
-{
-    /bin/echo -n -e "${BMPREFIX}${@}"
-    /bin/echo -e "${CURS_ZERO}${SUCCESS_PREFIX}${SET_COL}${SUCCESS_SUFFIX}"
-
-    echo " OK" >> ${BOOTLOG}
-
-    return 0
-}
-
-################################################################################
-# log_failure_msg()                                                            #
-# Usage: log_failure_msg ["message"]                                           #
-#                                                                              #
-# Purpose: Print a failure status message to the screen and                    #
-#          a boot log file.                                                    #
-#                                                                              #
-# Inputs: $@ - Message                                                         #
-#                                                                              #
-# Return values: Not used                                                      #
-################################################################################
-log_failure_msg()
-{
-    /bin/echo -n -e "${BMPREFIX}${@}"
-    /bin/echo -e "${CURS_ZERO}${FAILURE_PREFIX}${SET_COL}${FAILURE_SUFFIX}"
-
-    # Strip non-printable characters from log file
-
-    timespec
-    logmessage=`echo "${@}" | sed 's/\\\033[^a-zA-Z]*.//g'`
-    /bin/echo -e "${STAMP} ${logmessage} FAIL" >> ${BOOTLOG}
-
-    return 0
-}
-
-log_failure_msg2()
-{
-    /bin/echo -n -e "${BMPREFIX}${@}"
-    /bin/echo -e "${CURS_ZERO}${FAILURE_PREFIX}${SET_COL}${FAILURE_SUFFIX}"
-
-    echo "FAIL" >> ${BOOTLOG}
-
-    return 0
-}
-
-################################################################################
-# log_warning_msg()                                                            #
-# Usage: log_warning_msg ["message"]                                           #
-#                                                                              #
-# Purpose: Print a warning status message to the screen and                    #
-#          a boot log file.                                                    #
-#                                                                              #
-# Return values: Not used                                                      #
-################################################################################
-log_warning_msg()
-{
-    /bin/echo -n -e "${BMPREFIX}${@}"
-    /bin/echo -e "${CURS_ZERO}${WARNING_PREFIX}${SET_COL}${WARNING_SUFFIX}"
-
-    # Strip non-printable characters from log file
-    logmessage=`echo "${@}" | sed 's/\\\033[^a-zA-Z]*.//g'`
-    timespec
-    /bin/echo -e "${STAMP} ${logmessage} WARN" >> ${BOOTLOG}
-
-    return 0
-}
-
-log_skip_msg()
-{
-    /bin/echo -n -e "${BMPREFIX}${@}"
-    /bin/echo -e "${CURS_ZERO}${SKIP_PREFIX}${SET_COL}${SKIP_SUFFIX}"
-
-    # Strip non-printable characters from log file
-    logmessage=`echo "${@}" | sed 's/\\\033[^a-zA-Z]*.//g'`
-    /bin/echo "SKIP" >> ${BOOTLOG}
-
-    return 0
-}
-
-################################################################################
-# log_info_msg()                                                               #
-# Usage: log_info_msg message                                                  #
-#                                                                              #
-# Purpose: Print an information message to the screen and                      #
-#          a boot log file.  Does not print a trailing newline character.      #
-#                                                                              #
-# Return values: Not used                                                      #
-################################################################################
-log_info_msg()
-{
-    /bin/echo -n -e "${BMPREFIX}${@}"
-
-    # Strip non-printable characters from log file
-    logmessage=`echo "${@}" | sed 's/\\\033[^a-zA-Z]*.//g'`
-    timespec
-    /bin/echo -n -e "${STAMP} ${logmessage}" >> ${BOOTLOG}
-
-    return 0
-}
-
-log_info_msg2()
-{
-    /bin/echo -n -e "${@}"
-
-    # Strip non-printable characters from log file
-    logmessage=`echo "${@}" | sed 's/\\\033[^a-zA-Z]*.//g'`
-    /bin/echo -n -e "${logmessage}" >> ${BOOTLOG}
-
-    return 0
-}
-
-################################################################################
-# evaluate_retval()                                                            #
-# Usage: Evaluate a return value and print success or failure as appropriate  #
-#                                                                              #
-# Purpose: Convenience function to terminate an info message                   #
-#                                                                              #
-# Return values: Not used                                                      #
-################################################################################
-evaluate_retval()
-{
-   local error_value="${?}"
-
-   if [ ${error_value} = 0 ]; then
-      log_success_msg2
-   else
-      log_failure_msg2
-   fi
-}
-
-################################################################################
-# check_signal()                                                               #
-# Usage: check_signal [ -{signal} ]                                            #
-#                                                                              #
-# Purpose: Check for a valid signal.  This is not defined by any LSB draft,    #
-#          however, it is required to check the signals to determine if the    #
-#          signals chosen are invalid arguments to the other functions.        #
-#                                                                              #
-# Inputs: Accepts a single string value in the form of -{signal}               #
-#                                                                              #
-# Return values:                                                               #
-#       0 - Success (signal is valid                                           #
-#       1 - Signal is not valid                                                #
-################################################################################
-check_signal()
-{
-    local valsig
-
-    # Add error handling for invalid signals
-    valsig=" -ALRM -HUP -INT -KILL -PIPE -POLL -PROF -TERM -USR1 -USR2"
-    valsig="${valsig} -VTALRM -STKFLT -PWR -WINCH -CHLD -URG -TSTP -TTIN"
-    valsig="${valsig} -TTOU -STOP -CONT -ABRT -FPE -ILL -QUIT -SEGV -TRAP"
-    valsig="${valsig} -SYS -EMT -BUS -XCPU -XFSZ -0 -1 -2 -3 -4 -5 -6 -8 -9"
-    valsig="${valsig} -11 -13 -14 -15 "
-
-    echo "${valsig}" | grep -- " ${1} " > /dev/null
-
-    if [ "${?}" -eq "0" ]; then
-        return 0
-    else
-        return 1
-    fi
-}
-
-################################################################################
-# check_sig_type()                                                             #
-# Usage: check_signal [ -{signal} | {signal} ]                                 #
-#                                                                              #
-# Purpose: Check if signal is a program termination signal or a control signal #
-#          This is not defined by any LSB draft, however, it is required to    #
-#          check the signals to determine if they are intended to end a        #
-#          program or simply to control it.                                    #
-#                                                                              #
-# Inputs: Accepts a single string value in the form or -{signal} or {signal}   #
-#                                                                              #
-# Return values:                                                               #
-#       0 - Signal is used for program termination                             #
-#       1 - Signal is used for program control                                 #
-################################################################################
-check_sig_type()
-{
-    local valsig
-
-    # The list of termination signals (limited to generally used items)
-    valsig=" -ALRM -INT -KILL -TERM -PWR -STOP -ABRT -QUIT -2 -3 -6 -9 -14 -15 "
-
-    echo "${valsig}" | grep -- " ${1} " > /dev/null
-
-    if [ "${?}" -eq "0" ]; then
-        return 0
-    else
-        return 1
-    fi
-}
-
-################################################################################
-# wait_for_user()                                                              #
-#                                                                              #
-# Purpose: Wait for the user to respond if not a headless system               #
-#                                                                              #
-################################################################################
-wait_for_user()
-{
-   # Wait for the user by default
-   [ "${HEADLESS=0}" = "0" ] && read ENTER
-   return 0
-}
-
-################################################################################
-# is_true()                                                                    #
-#                                                                              #
-# Purpose: Utility to test if a variable is true | yes | 1                     #
-#                                                                              #
-################################################################################
-is_true()
-{
-   [ "$1" = "1" ] || [ "$1" = "yes" ] || [ "$1" = "true" ] ||  [ "$1" = "y" ] ||
-   [ "$1" = "t" ]
-}
-
-# End /lib/lsb/init-functions
-
- Линукс с нуля - Версия 12.1 -

- Приложение D. Скрипты загрузки и настройки системы-20230728 -

- D.2. - /lib/lsb/init-functions -
