# functions This file contains functions to be used by most or all
# shell scripts in the /etc/init.d directory.
#
-# $Id: functions,v 1.59 2000/10/22 20:55:23 misiek Exp $
+# $Id: functions,v 1.64 2001/05/15 16:03:38 baggins Exp $
#
# Author: Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
# Hacked by: Greg Galloway and Marc Ewing
INIT_COL=67
# Source configuration if available - may override default values
-[ -f /etc/sysconfig/system ] && . /etc/sysconfig/system
+[ -r /etc/sysconfig/system ] && . /etc/sysconfig/system
[ -z "$COLUMNS" ] && COLUMNS=80
# printf equivalent
printf_()
{
+ typeset text m
text="$1" ;
shift ;
if [ $# -gt 0 ]; then
# National language support function
nls()
{
-if [ -x /bin/gettext -o -x /usr/bin/gettext ]; then
- OLD_NLS_DOMAIN="$NLS_DOMAIN"
- if [ "$1" = "--nls-domain" ]; then
- shift
- NLS_DOMAIN="$1"
- shift
- fi
- if [ -z "$NLS_DOMAIN" ]; then
- NLS_DOMAIN="rc-scripts"
+ typeset msg_echo old_nls_domain text message
+ msg_echo='\n'
+ old_nls_domain="$NLS_DOMAIN"
+ # parse command line
+ # don't use -o instead || here - this will broke ksh --misiek
+ while [ "$1" != "${1##-}" ] || [ "$1" != "${1##+}" ]; do
+ case "$1" in
+ --nls-domain)
+ shift
+ NLS_DOMAIN="$1"
+ shift
+ ;;
+ -n)
+ msg_echo=''
+ shift
+ ;;
+ esac
+ done
+ message="$1"
+ shift
+ # empty message, so we return --misiek
+ if [ -z "$message" ]; then
+ NLS_DOMAIN="$old_nls_domain"
+ echo -en "$msg_echo"
+ return
fi
- MESSAGE="$1"
- # avoid translating empty text. --misiek
- if [ -n "$MESSAGE" ]; then
- text="`TEXTDOMAINDIR="/etc/sysconfig/locale" gettext -e --domain="$NLS_DOMAIN" "$MESSAGE"`"
+
+ if [ -x /bin/gettext -o -x /usr/bin/gettext ]; then
+ text=$(TEXTDOMAINDIR="/etc/sysconfig/locale" gettext -e --domain="${NLS_DOMAIN:-rc-scripts}" "$message")
+ printf_ "$text" "$@"
else
- text="$MESSAGE"
+ printf_ "$message" "$@"
fi
- shift
- printf_ "$text" "$@"
- echo
- NLS_DOMAIN="$OLD_NLS_DOMAIN"
-else
- echo "$@"
-fi
+
+ echo -en "$msg_echo"
+ NLS_DOMAIN="$old_nls_domain"
}
-msg_Network_Down()
+msg_network_down()
{
nls "ERROR: Networking is down. %s can't be run." "$1"
}
show "Starting %s service" "$1"
}
-msg_Already_Running()
+msg_already_running()
{
nls "%s service is already running." "$1"
}
show "Stopping %s service" "$1"
}
-msg_Not_Running()
+msg_not_running()
{
nls "%s service is not running." "$1"
}
show "Reloading %s service" "$1"
}
-msg_Usage()
+msg_usage()
{
nls "Usage: %s" "$*"
}
# Some functions to handle PLD-style messages
show()
{
- what="`nls --nls-domain rc-scripts "DONE"`"; typeset -i offset=${#what}
- text="`nls "$@"`"
+ typeset text
+ text=$(nls "$@")
echo -n "$text"
awk "BEGIN { for (j=length(\"$text\"); j<$INIT_COL; j++) printf \".\" }"
}
# used).
progress()
{
+ typeset COLOR
if [ -n "$2" ]; then COLOR="$2"; else COLOR="2"; fi
deltext
- echo -n "`termput setaf 6`[`termput setaf "$COLOR"` `nls --nls-domain rc-scripts "$1"` `termput setaf 6`]`termput op`"
+ echo -n "$(termput setaf 6)[$(termput setaf "$COLOR") $(nls --nls-domain rc-scripts "$1") $(termput setaf 6)]$(termput op)"
}
busy()
{
progress "FAIL" 1
echo
+ return 1
}
died()
{
progress "DIED" 1
echo
+ return 1
}
deltext()
# Usage run_cmd Message command_to_run
run_cmd()
{
- exit_code=0
- _ERRORS=""
- MESSAGE=$1
- show "$MESSAGE"; busy
+ typeset exit_code errors message force_err
+ typeset -i force_err=0
+ typeset -i exit_code=0
+ case "$1" in
+ -a)
+ force_err=1
+ shift
+ ;;
+ esac
+ message=$1
+ show "$message"; busy
shift
- if _ERRORS="`HOME=/tmp TMPDIR=/tmp initlog -c \"$*\" 2>&1`"; then
+ if errors=$(HOME=/tmp TMPDIR=/tmp initlog -c "$*" 2>&1); then
ok
+ log_success "$1 $message"
else
- fail; [ -n "$_ERRORS" ] && echo $_ERRORS
+ fail
+ log_failed "$1 $message"
exit_code=1
fi
- unset _ERRORS
+ [ -n "$errors" ] && [ $exit_code -eq 1 -o $force_err -eq 1 ] && echo "$errors"
return $exit_code
}
-# compatibility functions
-action()
-{
- STRING=$1
- shift
- run_cmd "$STRING" "$*"
-}
-
# A function to start a program (now it's usefull on read-only filesystem too)
daemon()
{
- nicelevel=0
- exit_code=0
- _ERRORS=""
+ typeset errors="" prog=""
+ typeset -i exit_code=0
[ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
- # Test syntax.
- case $1 in
- '') msg_Usage " daemon [+/-nicelevel] {program}"
- return 1;;
- -*|+*) SERVICE_RUN_NICE_LEVEL=$1
- shift;;
- esac
+ # Test syntax. Don't use -o instead || here - this will broke ksh --misiek
+ while [ "$1" != "${1##-}" ] || [ "$1" != "${1##+}" ]; do
+ case $1 in
+ '') msg_usage " daemon [--user user] [+/-nicelevel] {program}"
+ return 1
+ ;;
+ --check)
+ # for compatibility with redhat/mandrake
+ nls "warning: --check option is ignored!"
+ shift
+ shift
+ ;;
+ --user)
+ shift
+ prog="/bin/su $1 -c"
+ shift
+ ;;
+ -*|+*) SERVICE_RUN_NICE_LEVEL=$1
+ shift;;
+ esac
+ done
+ prog="$prog "$*""
# make sure it doesn't core dump anywhere; while this could mask
# problems with the daemon, it also closes some security problems
# And start it up.
busy
- if _ERRORS="`HOME=/tmp TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} initlog -c "$*" 2>&1`"; then
+ if errors=$(HOME=/tmp TMPDIR=/tmp nice -n ${SERVICE_RUN_NICE_LEVEL:-$DEFAULT_SERVICE_RUN_NICE_LEVEL} initlog -c "$prog" 2>&1); then
+ log_success "$1 startup"
ok
else
exit_code=1
fail
- [ -n "$_ERRORS" ] && echo $_ERRORS
+ log_failed "$1 startup"
+ [ -n "$errors" ] && echo "$errors"
fi
- unset _ERRORS
return $exit_code
}
# A function to stop a program.
killproc()
{
+ typeset notset killlevel base pid
# Test syntax.
if [ $# = 0 ]; then
- msg_Usage " killproc {program} [signal]"
+ msg_usage " killproc {program} [signal]"
return 1
fi
busy
- notset=0
+ typeset -i notset=0
# check for second arg to be kill level
- if [ "$2" != "" ] ; then
+ if [ -n "$2" ] ; then
killlevel=$2
else
notset=1
fi
# Save basename.
- base=`basename $1`
+ base=$(basename $1)
# Find pid.
- pid=`pidofproc $base`
+ pid=$(pidofproc $base)
# Kill it.
- if [ "$pid" != "" ] ; then
+ if [ -n "$pid" ] ; then
if [ "$notset" = "1" ] ; then
if ps h $pid>/dev/null 2>&1; then
# TERM first, then KILL if not dead
fi
fi
fi
- ps h $pid >/dev/null 2>&1 && fail || ok
+ if (ps h $pid >/dev/null 2>&1); then
+ fail
+ log_failed "$1 shutdown"
+ else
+ ok
+ log_success "$1 shutdown"
+ fi
else
died
+ log_failed "$1 shutdown"
fi
# use specified level only
else
if ps h $pid >/dev/null 2>&1; then
- kill $killlevel $pid && ok || fail
+ if (kill $killlevel $pid); then
+ ok
+ log_success "$1 shutdown"
+ else
+ fail
+ log_failed "$1 shutdown"
+ fi
else
died
+ log_failed "$1 shutdown"
fi
fi
else
died
+ log_failed "$1 shutdown"
fi
# Remove pid file if any.
# A function to find the pid of a program.
pidofproc()
{
+ typeset pid
# Test syntax.
if [ $# = 0 ] ; then
- msg_Usage " pidofproc {program}"
+ msg_usage " pidofproc {program}"
return 1
fi
# First try "/var/run/*.pid" files
if [ -f /var/run/$1.pid ] ; then
- pid=`head -1 /var/run/$1.pid`
- if [ "$pid" != "" ] ; then
+ pid=$(head -1 /var/run/$1.pid)
+ if [ -n "$pid" ] ; then
echo $pid
return 0
fi
fi
# Next try "pidof"
- pid=`pidof $1`
- if [ "$pid" != "" ] ; then
+ pid=$(pidof -o $$ -o $PPID -o %PPID -x $1)
+ if [ -n "$pid" ] ; then
echo $pid
return 0
fi
{
# Test syntax.
if [ $# = 0 ] ; then
- msg_Usage " status {program}"
+ msg_usage " status {subsys} [{daemon}]"
return 1
fi
+ subsys=$1
+ daemon=${2:-$subsys}
+
# First try "pidof"
- pid=`pidof $1`
- if [ "$pid" != "" ] ; then
- nls "%s (pid %s) is running..." "$1" "$pid"
+ pid=$(pidof -o $$ -o $PPID -o %PPID -x $daemon)
+ if [ -n "$pid" ] ; then
+ nls "%s (pid %s) is running..." "$daemon" "$pid"
return 0
else
pid=`ps ax | awk 'BEGIN { prog=ARGV[1]; ARGC=1 }
(("[" prog "]") == $5) ||
((prog ":") == $5)) { print $1 ; exit 0 } }' $1`
if [ "$pid" != "" ] ; then
- nls "%s (pid %s) is running..." "$1" "$pid"
+ nls "%s (pid %s) is running..." "$daemon" "$pid"
return 0
fi
fi
# Next try "/var/run/*.pid" files
- if [ -f /var/run/$1.pid ] ; then
- pid=`head -1 /var/run/$1.pid`
- if [ "$pid" != "" ] ; then
+ if [ -f /var/run/$daemon.pid ] ; then
+ pid=$(head -1 /var/run/$1.pid)
+ if [ -n "$pid" ] ; then
nls "%s dead but pid file exists" "$1"
return 1
fi
fi
- # See if /var/lock/subsys/$1 exists
- if [ -f /var/lock/subsys/$1 ]; then
- nls "%s dead but subsys locked" "$1"
+ # See if /var/lock/subsys/$subsys exists
+ if [ -f /var/lock/subsys/$subsys ]; then
+ nls "%s dead but subsys locked" "$daemon"
return 2
fi
- nls "%s is stopped" "$1"
+ nls "%s is stopped" "$subsys"
return 3
}
# Confirm whether we really want to run this service
confirm() {
- echo -n "`nls "Start service %s (Y)es/(N)o/(C)ontinue? [Y] " $1`"
+ typeset answer
+ nls -n "Start service %s (Y)es/(N)o/(C)ontinue? [Y] " "$1"
read answer
case $answer in
y|Y|t|T|j|J|"")
{
# Test syntax
if [ $# = 0 ] ; then
- msg_Usage " is_yes {value}"
+ msg_usage " is_yes {value}"
return 2
fi
# Check value
- [ "$1" = "yes" ] ||\
- [ "$1" = "Yes" ] ||\
- [ "$1" = "YES" ] ||\
- [ "$1" = "true" ] ||\
- [ "$1" = "True" ] ||\
- [ "$1" = "TRUE" ] ||\
- [ "$1" = "Y" ]||\
- [ "$1" = "y" ]||\
- [ "$1" = "1" ] ||\
- return 1
- return 0
+ case "$1" in
+ yes|Yes|YES|true|True|TRUE|on|On|ON|Y|y|1)
+ # true returns zero
+ return 0
+ ;;
+ *)
+ # false returns one
+ return 1
+ ;;
+ esac
}
is_no()
{
# Test syntax
if [ $# = 0 ] ; then
- msg_Usage " is_no {value}"
+ msg_usage " is_no {value}"
return 2
fi
-
- # Check value
- [ "$1" = "no" ] ||\
- [ "$1" = "No" ] ||\
- [ "$1" = "NO" ] ||\
- [ "$1" = "false" ] ||\
- [ "$1" = "False" ] ||\
- [ "$1" = "FALSE" ] ||\
- [ "$1" = "N" ] ||\
- [ "$1" = "n" ] ||\
- [ "$1" = "0" ] ||\
- [ "$1" = "" ] ||\
+
+ # It's important that is_no() should always return logical
+ # negation of is_yes(). Really ALWAYS. --misiek
+ # NOTE: This means that passing value which mean neither "yes" nor
+ # "no" will return "true", beacause it does not mean "yes". Weird,
+ # isn't it? :) --mkochano
+ if is_yes "$1" ; then
return 1
- return 0
+ else
+ return 0
+ fi
+}
+
+# module is needed (ie. is requested, is available and isn't loaded already)
+is_module()
+{
+ # module name without .o at end
+ if ! (lsmod | grep -q "$1"); then
+ if (ls -R /lib/modules/$(uname -r)/ 2> /dev/null | grep -q "${1}.o"); then
+ # true
+ return 0
+ fi
+ fi
+ # false
+ return 1
}
_modprobe()
{
+ typeset parsed single die args foo result
parsed=no
- while is_no $parsed ; do
+ while is_no "$parsed" ; do
case "$1" in
"single")
single=yes
if is_yes "${single}" ; then
foo="$@"
show "Loading %s kernel module(s)" "$foo"
- unset foo
busy
fi
if [ -x /sbin/modprobe ] ; then
if is_yes "${single}" ; then
deltext
if [ $result == "0" ] ; then
- is_yes "${single}" && ok
+ is_yes "$single" && ok
else
fail
if is_yes "$die" ; then
fi
fi
fi
- unset single die args result
}
+
+log_success ()
+{
+ initlog -n $0 -s "$1 $2" -e 1
+}
+
+log_failed ()
+{
+ initlog -n $0 -s "$1 $2" -e 2
+}
+
+# RedHat/Mandrake specific functions
+action () { STRING=$1; shift; run_cmd "$STRING" "$*"; }
+success () { return 0; }
+failure () { return 1; }
+
+# TO BE REMOVED SOON. --misiek
+msg_Network_Down () { msg_network_down "$*"; }
+msg_Already_Running () { msg_already_running "$*"; }
+msg_Not_Running () { msg_not_running "$*"; }
+msg_Usage () { msg_usage "$*"; }
+
+# This must be last line !
+# vi:syntax=sh:tw=78:ts=8:sw=4
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