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-rw-r--r--source/a/sysvinit-functions/functions577
1 files changed, 577 insertions, 0 deletions
diff --git a/source/a/sysvinit-functions/functions b/source/a/sysvinit-functions/functions
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+# -*-Shell-script-*-
+#
+# functions This file contains functions to be used by most or all
+# shell scripts in the /etc/init.d directory.
+#
+
+TEXTDOMAIN=initscripts
+
+# Make sure umask is sane
+umask 022
+
+# Set up a default search path.
+PATH="/sbin:/usr/sbin:/bin:/usr/bin"
+export PATH
+
+# Get a sane screen width
+[ -z "${COLUMNS:-}" ] && COLUMNS=80
+
+[ -z "${CONSOLETYPE:-}" ] && CONSOLETYPE="`/sbin/consoletype`"
+
+if [ -f /etc/sysconfig/i18n -a -z "${NOLOCALE:-}" ] ; then
+ . /etc/profile.d/lang.sh
+fi
+
+# Read in our configuration
+if [ -z "${BOOTUP:-}" ]; then
+ if [ -f /etc/sysconfig/init ]; then
+ . /etc/sysconfig/init
+ else
+ # This all seem confusing? Look in /etc/sysconfig/init,
+ # or in /usr/doc/initscripts-*/sysconfig.txt
+ BOOTUP=color
+ RES_COL=60
+ MOVE_TO_COL="echo -en \\033[${RES_COL}G"
+ SETCOLOR_SUCCESS="echo -en \\033[1;32m"
+ SETCOLOR_FAILURE="echo -en \\033[1;31m"
+ SETCOLOR_WARNING="echo -en \\033[1;33m"
+ SETCOLOR_NORMAL="echo -en \\033[0;39m"
+ LOGLEVEL=1
+ fi
+ if [ "$CONSOLETYPE" = "serial" ]; then
+ BOOTUP=serial
+ MOVE_TO_COL=
+ SETCOLOR_SUCCESS=
+ SETCOLOR_FAILURE=
+ SETCOLOR_WARNING=
+ SETCOLOR_NORMAL=
+ fi
+fi
+
+if [ "${BOOTUP:-}" != "verbose" ]; then
+ INITLOG_ARGS="-q"
+else
+ INITLOG_ARGS=
+fi
+
+# Interpret escape sequences in an fstab entry
+fstab_decode_str() {
+ fstab-decode echo "$1"
+}
+
+# Check if $pid (could be plural) are running
+checkpid() {
+ local i
+
+ for i in $* ; do
+ [ -d "/proc/$i" ] && return 0
+ done
+ return 1
+}
+
+# __umount_loop awk_program fstab_file first_msg retry_msg umount_args
+# awk_program should process fstab_file and return a list of fstab-encoded
+# paths; it doesn't have to handle comments in fstab_file.
+__umount_loop() {
+ local remaining sig=
+ local retry=3
+
+ remaining=$(LC_ALL=C awk "/^#/ {next} $1" "$2" | sort -r)
+ while [ -n "$remaining" -a "$retry" -gt 0 ]; do
+ if [ "$retry" -eq 3 ]; then
+ action "$3" fstab-decode umount $5 $remaining
+ else
+ action "$4" fstab-decode umount $5 $remaining
+ fi
+ sleep 2
+ remaining=$(LC_ALL=C awk "/^#/ {next} $1" "$2" | sort -r)
+ [ -z "$remaining" ] && break
+ fstab-decode /sbin/fuser -k -m $sig $remaining >/dev/null
+ sleep 5
+ retry=$(($retry -1))
+ sig=-9
+ done
+}
+
+# Similar to __umount loop above, specialized for loopback devices
+__umount_loopback_loop() {
+ local remaining devremaining sig=
+ local retry=3
+
+ remaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $2}' /proc/mounts)
+ devremaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $1}' /proc/mounts)
+ while [ -n "$remaining" -a "$retry" -gt 0 ]; do
+ if [ "$retry" -eq 3 ]; then
+ action $"Unmounting loopback filesystems: " \
+ fstab-decode umount $remaining
+ else
+ action $"Unmounting loopback filesystems (retry):" \
+ fstab-decode umount $remaining
+ fi
+ for dev in $devremaining ; do
+ losetup $dev > /dev/null 2>&1 && \
+ action $"Detaching loopback device $dev: " \
+ losetup -d $dev
+ done
+ remaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $2}' /proc/mounts)
+ devremaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $1}' /proc/mounts)
+ [ -z "$remaining" ] && break
+ fstab-decode /sbin/fuser -k -m $sig $remaining >/dev/null
+ sleep 5
+ retry=$(($retry -1))
+ sig=-9
+ done
+}
+
+# __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= nicelevel corelimit
+ local pid base= user= nice= bg= pid_file=
+ nicelevel=0
+ while [ "$1" != "${1##[-+]}" ]; do
+ case $1 in
+ '') echo $"$0: Usage: daemon [+/-nicelevel] {program}"
+ return 1;;
+ --check)
+ base=$2
+ gotbase="yes"
+ shift 2
+ ;;
+ --check=?*)
+ base=${1#--check=}
+ gotbase="yes"
+ shift
+ ;;
+ --user)
+ user=$2
+ shift 2
+ ;;
+ --user=?*)
+ user=${1#--user=}
+ shift
+ ;;
+ --pidfile)
+ pid_file=$2
+ shift 2
+ ;;
+ --pidfile=?*)
+ pid_file=${1#--pidfile=}
+ shift
+ ;;
+ --force)
+ force="force"
+ shift
+ ;;
+ [-+][0-9]*)
+ nice="nice -n $1"
+ shift
+ ;;
+ *) echo $"$0: Usage: daemon [+/-nicelevel] {program}"
+ return 1;;
+ esac
+ done
+
+ # Save basename.
+ [ -z "$gotbase" ] && base=${1##*/}
+
+ # See if it's already running. Look *only* at the pid file.
+ __pids_var_run "$base" "$pid_file"
+
+ [ -n "$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 $NICELEVEL"
+
+ # Echo daemon
+ [ "${BOOTUP:-}" = "verbose" -a -z "${LSB:-}" ] && echo -n " $base"
+
+ # And start it up.
+ if [ -z "$user" ]; then
+ $nice /bin/bash -c "$corelimit >/dev/null 2>&1 ; $*"
+ else
+ $nice runuser -s /bin/bash - $user -c "$corelimit >/dev/null 2>&1 ; $*"
+ fi
+ [ "$?" -eq 0 ] && success $"$base startup" || failure $"$base startup"
+}
+
+# A function to stop a program.
+killproc() {
+ local RC killlevel= base pid pid_file= delay
+
+ RC=0; delay=3
+ # Test syntax.
+ if [ "$#" -eq 0 ]; then
+ echo $"Usage: killproc [-p pidfile] [ -d delay] {program} [-signal]"
+ return 1
+ fi
+ if [ "$1" = "-p" ]; then
+ pid_file=$2
+ shift 2
+ fi
+ if [ "$1" = "-d" ]; then
+ delay=$2
+ shift 2
+ fi
+
+
+ # check for second arg to be kill level
+ [ -n "${2:-}" ] && killlevel=$2
+
+ # Save basename.
+ base=${1##*/}
+
+ # Find pid.
+ __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 "$base "
+ if [ -z "$killlevel" ] ; then
+ if checkpid $pid 2>&1; then
+ # TERM first, then KILL if not dead
+ kill -TERM $pid >/dev/null 2>&1
+ usleep 100000
+ if checkpid $pid && sleep 1 &&
+ checkpid $pid && sleep $delay &&
+ checkpid $pid ; then
+ kill -KILL $pid >/dev/null 2>&1
+ usleep 100000
+ fi
+ fi
+ checkpid $pid
+ RC=$?
+ [ "$RC" -eq 0 ] && failure $"$base shutdown" || success $"$base shutdown"
+ RC=$((! $RC))
+ # use specified level only
+ else
+ if checkpid $pid; then
+ 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
+ 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 [ -z "$killlevel" ]; then
+ rm -f "${pid_file:-/var/run/$base.pid}"
+ fi
+ return $RC
+}
+
+# A function to find the pid of a program. Looks *only* at the pidfile
+pidfileofproc() {
+ local pid
+
+ # Test syntax.
+ if [ "$#" = 0 ] ; then
+ echo $"Usage: pidfileofproc {program}"
+ return 1
+ fi
+
+ __pids_var_run "$1"
+ [ -n "$pid" ] && echo $pid
+ return 0
+}
+
+# A function to find the pid of a program.
+pidofproc() {
+ local RC pid pid_file=
+
+ # Test syntax.
+ if [ "$#" = 0 ]; then
+ 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
+ __pids_var_run "$1" "$pid_file"
+ RC=$?
+ if [ -n "$pid" ]; then
+ echo $pid
+ return 0
+ fi
+
+ [ -n "$pid_file" ] && return $RC
+ __pids_pidof "$1" || return $RC
+}
+
+status() {
+ local base pid pid_file=
+
+ # Test syntax.
+ if [ "$#" = 0 ] ; then
+ echo $"Usage: status [-p pidfile] {program}"
+ return 1
+ fi
+ if [ "$1" = "-p" ]; then
+ pid_file=$2
+ shift 2
+ fi
+ base=${1##*/}
+
+ # First try "pidof"
+ pid="$(__pids_pidof "$1")"
+ if [ -n "$pid" ]; then
+ echo $"${base} (pid $pid) is running..."
+ return 0
+ fi
+
+ # Next try "/var/run/*.pid" files
+ __pids_var_run "$1" "$pid_file"
+ case "$?" in
+ 0)
+ echo $"${base} (pid $pid) is running..."
+ return 0
+ ;;
+ 1)
+ echo $"${base} dead but pid file exists"
+ return 1
+ ;;
+ esac
+ # See if /var/lock/subsys/${base} exists
+ if [ -f /var/lock/subsys/${base} ]; then
+ echo $"${base} dead but subsys locked"
+ return 2
+ fi
+ echo $"${base} is stopped"
+ return 3
+}
+
+echo_success() {
+ [ "$BOOTUP" = "color" ] && $MOVE_TO_COL
+ echo -n "["
+ [ "$BOOTUP" = "color" ] && $SETCOLOR_SUCCESS
+ echo -n $" OK "
+ [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
+ echo -n "]"
+ echo -ne "\r"
+ return 0
+}
+
+echo_failure() {
+ [ "$BOOTUP" = "color" ] && $MOVE_TO_COL
+ echo -n "["
+ [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
+ echo -n $"FAILED"
+ [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
+ echo -n "]"
+ echo -ne "\r"
+ return 1
+}
+
+echo_passed() {
+ [ "$BOOTUP" = "color" ] && $MOVE_TO_COL
+ echo -n "["
+ [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
+ echo -n $"PASSED"
+ [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
+ echo -n "]"
+ echo -ne "\r"
+ return 1
+}
+
+echo_warning() {
+ [ "$BOOTUP" = "color" ] && $MOVE_TO_COL
+ echo -n "["
+ [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
+ echo -n $"WARNING"
+ [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
+ echo -n "]"
+ echo -ne "\r"
+ return 1
+}
+
+# Inform the graphical boot of our current state
+update_boot_stage() {
+ if [ "$GRAPHICAL" = "yes" -a -x /usr/bin/rhgb-client ]; then
+ /usr/bin/rhgb-client --update="$1"
+ fi
+ return 0
+}
+
+# Log that something succeeded
+success() {
+ #if [ -z "${IN_INITLOG:-}" ]; then
+ # initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
+ #fi
+ [ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_success
+ return 0
+}
+
+# Log that something failed
+failure() {
+ local rc=$?
+ #if [ -z "${IN_INITLOG:-}" ]; then
+ # initlog $INITLOG_ARGS -n $0 -s "$1" -e 2
+ #fi
+ [ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_failure
+ [ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --details=yes
+ return $rc
+}
+
+# Log that something passed, but may have had errors. Useful for fsck
+passed() {
+ local rc=$?
+ #if [ -z "${IN_INITLOG:-}" ]; then
+ # initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
+ #fi
+ [ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_passed
+ return $rc
+}
+
+# Log a warning
+warning() {
+ local rc=$?
+ #if [ -z "${IN_INITLOG:-}" ]; then
+ # initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
+ #fi
+ [ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_warning
+ return $rc
+}
+
+# Run some action. Log its output.
+action() {
+ local STRING rc
+
+ STRING=$1
+ echo -n "$STRING "
+ 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 [ "$rc" = "0" ]; then
+ echo_success > /etc/rhgb/temp/rhgb-console
+ else
+ echo_failure > /etc/rhgb/temp/rhgb-console
+ [ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --details=yes
+ fi
+ echo > /etc/rhgb/temp/rhgb-console
+ fi
+ return $rc
+}
+
+# returns OK if $1 contains $2
+strstr() {
+ [ "${1#*$2*}" = "$1" ] && return 1
+ return 0
+}
+
+# Confirm whether we really want to run this service
+confirm() {
+ [ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --details=yes
+ while : ; do
+ echo -n $"Start service $1 (Y)es/(N)o/(C)ontinue? [Y] "
+ read answer
+ if strstr $"yY" "$answer" || [ "$answer" = "" ] ; then
+ return 0
+ elif strstr $"cC" "$answer" ; then
+ rm -f /var/run/confirm
+ [ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --details=no
+ return 2
+ elif strstr $"nN" "$answer" ; then
+ return 1
+ fi
+ done
+}
+
+# resolve a device node to its major:minor numbers in decimal or hex
+get_numeric_dev() {
+(
+ fmt="%d:%d"
+ if [ "$1" == "hex" ]; then
+ fmt="%x:%x"
+ fi
+ ls -lH "$2" | awk '{ sub(/,/, "", $5); printf("'"$fmt"'", $5, $6); }'
+) 2>/dev/null
+}
+
+# find the working name for a running dm device with the same table as one
+# that dmraid would create
+resolve_dm_name() {
+(
+ name="$1"
+
+ line=$(/sbin/dmraid -ay -t --ignorelocking | \
+ egrep -iv "no block devices found|No RAID disks" | \
+ awk -F ':' "{ if (\$1 ~ /^$name$/) { print \$2; }}")
+ for x in $line ; do
+ if [[ "$x" =~ "^/dev/" ]] ; then
+ majmin=$(get_numeric_dev dec $x)
+ line=$(echo "$line" | sed -e "s,$x\( \|$\),$majmin\1,g")
+ fi
+ done
+ line=$(echo "$line" | sed -e 's/^[ \t]*//' -e 's/[ \t]*$//' \
+ -e 's/ core [12] [[:digit:]]\+ / core [12] [[:digit:]]\\+ /')
+ /sbin/dmsetup table | \
+ sed -n -e "s/.*\(no block devices found\|No devices found\).*//" \
+ -e "s/\(^[^:]\+\): $line\( \+$\|$\)/\1/p"
+) 2>/dev/null
+}
+
+# Check whether file $1 is a backup or rpm-generated file and should be ignored
+is_ignored_file() {
+ case "$1" in
+ *~ | *.bak | *.orig | *.rpmnew | *.rpmorig | *.rpmsave)
+ return 0
+ ;;
+ esac
+ return 1
+}
+# A sed expression to filter out the files that is_ignored_file recognizes
+__sed_discard_ignored_files='/\(~\|\.bak\|\.orig\|\.rpmnew\|\.rpmorig\|\.rpmsave\)$/d'
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-16 10:27:48 +0000