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authorMiloslav Trmac <mitr@volny.cz>2006-01-26 03:02:59 +0000
committerMiloslav Trmac <mitr@volny.cz>2006-01-26 03:02:59 +0000
commit1a5a895793cdf4d0a963abde85e506fc77f04b51 (patch)
tree613ff8ae05b0ee6d13153871b7bdc1a6a978d5a0 /rc.d/init.d/functions
parent9f295f43adb7bcbbdc68f5a26fdda53a1b9a848b (diff)
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- Separate /var/run/*.pid handling and pidof calls to private functions
(#63440) - Update to implement current LSB specification for init script functions, notably including -p pidfile (#99325, #134363) (based in part on patch by Tobias Burnus) - Misc. cleanups: - Fix failures when run with (set -u) - Mark more variables as local
Diffstat (limited to 'rc.d/init.d/functions')
-rwxr-xr-xrc.d/init.d/functions172
1 files changed, 96 insertions, 76 deletions
diff --git a/rc.d/init.d/functions b/rc.d/init.d/functions
index bf66d1ee..4b89cdad 100755
--- a/rc.d/init.d/functions
+++ b/rc.d/init.d/functions
@@ -31,7 +31,7 @@ if [ -f /etc/sysconfig/i18n -a -z "${NOLOCALE:-}" ] ; then
;;
esac
else
- [ -n "$LC_MESSAGES" ] && export LC_MESSAGES
+ [ -n "${LC_MESSAGES:-}" ] && export LC_MESSAGES
export LANG
fi
fi
@@ -77,13 +77,42 @@ checkpid() {
done
return 1
}
-
+
+# __proc_pids {program} [pidfile]
+# Set $pid to pids from /var/run* for {program}. $pid should be declared
+# local in the caller.
+# Returns LSB exit code for the 'status' action.
+__pids_var_run() {
+ local base=${1##*/}
+ local pid_file=${2:-/var/run/$base.pid}
+
+ pid=
+ if [ -f "$pid_file" ] ; then
+ local line p
+ read line < "$pid_file"
+ for p in $line ; do
+ [ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && pid="$pid $p"
+ done
+ if [ -n "$pid" ]; then
+ return 0
+ fi
+ return 1 # "Program is dead and /var/run pid file exists"
+ fi
+ return 3 # "Program is not running"
+}
+
+# Output PIDs of matching processes, found using pidof
+__pids_pidof() {
+ pidof -c -o $$ -o $PPID -o %PPID -x "$1" || \
+ pidof -c -o $$ -o $PPID -o %PPID -x "${1##*/}"
+}
+
# A function to start a program.
daemon() {
# Test syntax.
- local gotbase= force=
- local base= user= nice= bg= pid=
+ local gotbase= force= nicelevel corelimit
+ local pid base= user= nice= bg= pid_file=
nicelevel=0
while [ "$1" != "${1##[-+]}" ]; do
case $1 in
@@ -107,6 +136,14 @@ daemon() {
user=${1#--user=}
shift
;;
+ --pidfile)
+ pid_file=$2
+ shift 2
+ ;;
+ --pidfile=?*)
+ pid_file=${$1#--pidfile=}
+ shift
+ ;;
--force)
force="force"
shift
@@ -124,24 +161,18 @@ daemon() {
[ -z "$gotbase" ] && base=${1##*/}
# See if it's already running. Look *only* at the pid file.
- if [ -f /var/run/${base}.pid ]; then
- local line p
- read line < /var/run/${base}.pid
- for p in $line ; do
- [ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && pid="$pid $p"
- done
- fi
-
- [ -n "${pid:-}" -a -z "${force:-}" ] && return
+ __pids_var_run "$1" "$pid_file"
+
+ [ -n "$pid" -a -z "$force" ] && return
# make sure it doesn't core dump anywhere unless requested
corelimit="ulimit -S -c ${DAEMON_COREFILE_LIMIT:-0}"
# if they set NICELEVEL in /etc/sysconfig/foo, honor it
- [ -n "$NICELEVEL" ] && nice="nice -n $NICELEVEL"
+ [ -n "${NICELEVEL:-}" ] && nice="nice -n $NICELEVEL"
# Echo daemon
- [ "${BOOTUP:-}" = "verbose" -a -z "$LSB" ] && echo -n " $base"
+ [ "${BOOTUP:-}" = "verbose" -a -z "${LSB:-}" ] && echo -n " $base"
# And start it up.
if [ -z "$user" ]; then
@@ -154,43 +185,35 @@ daemon() {
# A function to stop a program.
killproc() {
+ local RC killlevel= base pid pid_file=
+
RC=0
# Test syntax.
if [ "$#" -eq 0 ]; then
- echo $"Usage: killproc {program} [signal]"
+ echo $"Usage: killproc [-p pidfile] {program} [signal]"
return 1
fi
+ if [ "$1" = "-p" ]; then
+ pid_file=$2
+ shift 2
+ fi
- notset=0
# check for second arg to be kill level
- if [ -n "$2" ]; then
- killlevel=$2
- else
- notset=1
- killlevel="-9"
- fi
+ [ -n "${2:-}" ] && killlevel=$2
# Save basename.
base=${1##*/}
# Find pid.
- pid=
- if [ -f /var/run/${base}.pid ]; then
- local line p
- read line < /var/run/${base}.pid
- for p in $line ; do
- [ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && pid="$pid $p"
- done
- fi
- if [ -z "$pid" ]; then
- pid=`pidof -c -o $$ -o $PPID -o %PPID -x $1 || \
- pidof -c -o $$ -o $PPID -o %PPID -x $base`
+ __pids_var_run "$1" "$pid_file"
+ if [ -z "$pid_file" -a -z "$pid" ]; then
+ pid="$(__pids_pidof "$1")"
fi
# Kill it.
- if [ -n "${pid:-}" ] ; then
- [ "$BOOTUP" = "verbose" -a -z "$LSB" ] && echo -n "$base "
- if [ "$notset" -eq "1" ] ; then
+ if [ -n "$pid" ] ; then
+ [ "$BOOTUP" = "verbose" -a -z "${LSB:-}" ] && echo -n "$base "
+ if [ -z "$killlevel" ] ; then
if checkpid $pid 2>&1; then
# TERM first, then KILL if not dead
kill -TERM $pid >/dev/null 2>&1
@@ -212,15 +235,21 @@ killproc() {
kill $killlevel $pid >/dev/null 2>&1
RC=$?
[ "$RC" -eq 0 ] && success $"$base $killlevel" || failure $"$base $killlevel"
+ elif [ -n "${LSB:-}" ]; then
+ RC=7 # Program is not running
fi
fi
else
- failure $"$base shutdown"
- RC=0
+ if [ -n "${LSB:-}" -a -n "$killlevel" ]; then
+ RC=7 # Program is not running
+ else
+ failure $"$base shutdown"
+ RC=0
+ fi
fi
# Remove pid file if any.
- if [ "$notset" = "1" ]; then
+ if [ -z "$killlevel" ]; then
rm -f /var/run/$base.pid
fi
return $RC
@@ -228,52 +257,44 @@ killproc() {
# A function to find the pid of a program. Looks *only* at the pidfile
pidfileofproc() {
- local base=${1##*/}
-
+ local pid
+
# Test syntax.
if [ "$#" = 0 ] ; then
echo $"Usage: pidfileofproc {program}"
return 1
fi
- # First try "/var/run/*.pid" files
- if [ -f /var/run/$base.pid ] ; then
- local line p pid=
- read line < /var/run/$base.pid
- for p in $line ; do
- [ -z "${p//[0-9]/}" -a -d /proc/$p ] && pid="$pid $p"
- done
- if [ -n "$pid" ]; then
- echo $pid
- return 0
- fi
- fi
+ __pids_var_run "$1"
+ [ -n "$pid" ] && echo $pid
+ return 0
}
# A function to find the pid of a program.
pidofproc() {
- base=${1##*/}
+ local RC pid pid_file=
# Test syntax.
if [ "$#" = 0 ]; then
- echo $"Usage: pidofproc {program}"
+ echo $"Usage: pidofproc [-p pidfile] {program}"
return 1
fi
+ if [ "$1" = "-p" ]; then
+ pid_file=$2
+ shift 2
+ fi
+ fail_code=3 # "Program is not running"
# First try "/var/run/*.pid" files
- if [ -f /var/run/$base.pid ]; then
- local line p pid=
- read line < /var/run/$base.pid
- for p in $line ; do
- [ -z "${p//[0-9]/}" -a -d /proc/$p ] && pid="$pid $p"
- done
- if [ -n "$pid" ]; then
- echo $pid
- return 0
- fi
+ __pids_var_run "$1" "$pid_file"
+ RC=$?
+ if [ -n "$pid" ]; then
+ echo $pid
+ return 0
fi
- pidof -c -o $$ -o $PPID -o %PPID -x $1 || \
- pidof -c -o $$ -o $PPID -o %PPID -x $base
+
+ [ -n "$pid_file" ] && return $RC
+ __pids_pidof "$1" || return $RC
}
status() {
@@ -287,8 +308,7 @@ status() {
fi
# First try "pidof"
- pid=`pidof -o $$ -o $PPID -o %PPID -x $1 || \
- pidof -o $$ -o $PPID -o %PPID -x ${base}`
+ pid="$(__pids_pidof "$1")"
if [ -n "$pid" ]; then
echo $"${base} (pid $pid) is running..."
return 0
@@ -368,7 +388,7 @@ success() {
#if [ -z "${IN_INITLOG:-}" ]; then
# initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
#fi
- [ "$BOOTUP" != "verbose" -a -z "$LSB" ] && echo_success
+ [ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_success
return 0
}
@@ -378,7 +398,7 @@ failure() {
#if [ -z "${IN_INITLOG:-}" ]; then
# initlog $INITLOG_ARGS -n $0 -s "$1" -e 2
#fi
- [ "$BOOTUP" != "verbose" -a -z "$LSB" ] && echo_failure
+ [ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_failure
[ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --details=yes
[ -w /var/gdm/.gdmfifo ] && echo "BOOTUP_ERRORS" > /var/gdm/.gdmfifo &
return $rc
@@ -390,7 +410,7 @@ passed() {
#if [ -z "${IN_INITLOG:-}" ]; then
# initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
#fi
- [ "$BOOTUP" != "verbose" -a -z "$LSB" ] && echo_passed
+ [ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_passed
return $rc
}
@@ -400,7 +420,7 @@ warning() {
#if [ -z "${IN_INITLOG:-}" ]; then
# initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
#fi
- [ "$BOOTUP" != "verbose" -a -z "$LSB" ] && echo_warning
+ [ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_warning
return $rc
}
@@ -408,14 +428,14 @@ warning() {
action() {
STRING=$1
echo -n "$STRING "
- if [ "${RHGB_STARTED}" != "" -a -w /etc/rhgb/temp/rhgb-console ]; then
+ if [ "${RHGB_STARTED:-}" != "" -a -w /etc/rhgb/temp/rhgb-console ]; then
echo -n "$STRING " > /etc/rhgb/temp/rhgb-console
fi
shift
$* && success $"$STRING" || failure $"$STRING"
rc=$?
echo
- if [ "${RHGB_STARTED}" != "" -a -w /etc/rhgb/temp/rhgb-console ]; then
+ if [ "${RHGB_STARTED:-}" != "" -a -w /etc/rhgb/temp/rhgb-console ]; then
if [ "$rc" = "0" ]; then
echo_success > /etc/rhgb/temp/rhgb-console
else