rc.d/init.d/functions

#!/bin/bash
# $Header: /home/cvsd/magellan-cvs/magellan-src/magellan-initscripts/etc/rc.d/init.d/functions,v 1.5 2005-10-21 15:21:41 niro Exp $

# Begin $rc_base/init.d/functions - Run Level Control Functions

# Based on functions script from LFS-3.1 and earlier.
# Rewritten by Gerard Beekmans  - gerard@linuxfromscratch.org

# With code based on Matthias Benkmann's simpleinit-msb @
# http://winterdrache.de/linux/newboot/index.html

umask 022

export PATH="/bin:/usr/bin:/sbin:/usr/sbin"

KILLDELAY=3

COLUMNS=$(stty size)
COLUMNS=${COLUMNS##* }
COL=$[ $COLUMNS - 10 ]
WCOL=$[ $COLUMNS - 30 ]
WWCOL=$[ $COLUMNS - 40 ]
SET_COL="echo -en \\033[${COL}G"
SET_WCOL="echo -en \\033[${WCOL}G"
SET_WWCOL="echo -en \\033[${WWCOL}G"
CURS_UP="echo -en \\033[A"

NORMAL="echo -en \\033[0;39m"
SUCCESS="echo -en \\033[1;32m"
WARNING="echo -en \\033[1;33m"
FAILURE="echo -en \\033[1;31m"

COLRED="\033[1;6m\033[31m"
COLGREEN="\033[1;6m\033[32m"
COLYELLOW="\033[1;6m\033[33m"
COLBLUE="\033[1;6m\033[34m"
COLMAGENTA="\033[1;6m\033[35m"
COLWHITE="\033[1;6m\033[37m"
COLDEFAULT="\033[0m"

COLOREDSTAR="${COLBLUE}(${COLGREEN}*${COLBLUE})${COLDEFAULT} "

#location to save the started services
svcdir="/var/lib/init.d"
svclib="/lib/rcscripts"
svcmount="no"
svcfstype="tmpfs"
svcsize=1024


# dummy function; needed if splashutils are not installed
splash() {
	return 0
}


#source splash functions if exists
[ -f /etc/init.d/splash-functions ] && source /etc/init.d/splash-functions


print_error_msg()
{
	return 0
	echo
	$FAILURE
	echo -e "   An Error occurred."
	echo -e "   Script: ${COLWHITE}$i${COLRED}"
	echo -e "   Exitcode: ${COLWHITE}$error_value${COLRED}"
	echo
	$NORMAL
	echo
	echo "Press Enter to continue..."
	read
}

check_script_status()
{
	if [ ! -f $i ]
	then
		echo "$i is not a valid symlink"
		continue
	fi

	if [ ! -x $i ]
	then
		echo "$i is not executable, skipping"
		continue
	fi
}

update_svcstatus()
{
	#$1 script
	#$2 start/stop

	local SVCDIR_MOUNTED
	local SVCD_INITSCRIPT
	local x


	#do this only if proc is mounted
	[ ! -f /proc/mounts ] && return 0

	#check if svcdir is mounted
	SVCDIR_MOUNTED="$(cat /proc/mounts | grep ${svcdir} | cut -d ' ' -f2)"
	if [ "${SVCDIR_MOUNTED}" == "${svcdir}" ]
	then
		#check if statedir exists
		[ ! -d ${svcdir}/started ] && mkdir ${svcdir}/started

		#get real name of the initscript, not from the symlink
		if [ -L "$0" ]
		then
			x="$(readlink $0)"
			SVCD_INITSCRIPT="$(basename ${x})"
		else
			SVCD_INITSCRIPT="$(basename $0)"
		fi

		case $1 in
			start)
				#write to svcddir
				#write state
				echo ok > ${svcdir}/started/"${SVCD_INITSCRIPT}"
				;;
			stop)
				#echo "$(ls ${svcdir}/started)"
				if [ -f ${svcdir}/started/${SVCD_INITSCRIPT} ]
				then
					rm ${svcdir}/started/${SVCD_INITSCRIPT}
				fi
				;;
		esac
	fi
}

evaluate_retval()
{
	error_value=$?

	if [ $error_value = 0 ]
	then
		print_status success
	else
		print_status failure
	fi

	return $error_value
}

print_status()
{
	if [ $# = 0 ]
	then
		echo "Usage: $0 {success|warning|failure}"
		return 1
	fi

	$CURS_UP

	case "$1" in
		success)
			$SET_COL
			echo -e -n $COLBLUE"[  "
			$SUCCESS
			echo -e -n "OK"
			echo -e $COLBLUE"  ]"
			$NORMAL
			;;
		warning)
			case "$2" in
				running)
					$SET_WCOL
					echo "Already running"
					$CURS_UP
					;;
				not_running)
					$SET_WCOL
					echo "Not running"
					$CURS_UP
					;;
			esac
			$SET_COL
			echo -e -n $COLBLUE"[ "
			$WARNING
			echo -e -n "ATTN"
			echo -e $COLBLUE" ]"
			$NORMAL
			;;
		failure)
			$SET_COL
			echo -e -n $COLBLUE"["
			$FAILURE
			echo -e -n "FAILED"
			echo -e $COLBLUE"]"
			$NORMAL
			;;
	esac
}

getpids()
{
	base=${1##*/}
	pidlist=$(pidof -o $$ -o $PPID -x $base)
}

loadproc()
{
	if [ $# = 0 ]
	then
		echo "Usage: loadproc {program}"
		exit 1
	fi

	getpids $1

	if [ -z "$pidlist" ]
	then
		"$@"
		evaluate_retval
	else
		$SET_WCOL
		print_status warning running
	fi
}

killproc()
{
	if [ $# = 0 ]
	then
		echo "Usage: killproc {program} [signal]"
		exit 1
	fi

	if [ -z "$2" ]; then
		signal=TERM
		fallback=KILL
	else
		signal=${2##-}
		signal=${signal##SIG}
		fallback=""
	fi

	getpids $1

	if [ -n "$pidlist" ]; then
		failure=0

		for pid in $pidlist
		do
			kill -$signal $pid 2>/dev/null

			for ((i=0; $i<5000; i=$i+1)); do :; done

			for ((i=0; $i<$KILLDELAY; i=$i+1)); do
				kill -0 $pid 2>/dev/null || break
				sleep 1
			done

			if [ -n "$fallback" ]; then kill -$fallback $pid 2>/dev/null; fi

			kill -0 $pid 2>/dev/null && failure=1
		done

		base=${1##*/}
		if [ $failure = 0 ]; then rm -f /var/run/$base.pid; fi

		(exit $failure)
		evaluate_retval
	else
		$SET_WCOL
		print_status warning not_running
	fi
}

reloadproc()
{
	if [ $# = 0 ]
	then
		echo "Usage: reloadproc {program} [signal]"
		exit 1
	fi

	if [ -z "$2" ]; then
		signal=HUP
	else
		signal=${2##-}
		signal=${signal##SIG}

	fi

	getpids $1

	if [ -n "$pidlist" ]
	then
		failure=0

		for pid in $pidlist
		do
			kill -$signal $pid || failure=1
		done

		(exit $failure)
		evaluate_retval
	else
		$SET_WCOL
		print_status warning not_running
	fi
}

statusproc()
{
	if [ $# = 0 ]
	then
		echo "Usage: statusproc {program}"
		exit 1
	fi

	base=${1##*/}
	getpids $base

	if [ -n "$pidlist" ]
	then
		echo "$base is running with Process ID(s) $pidlist"
	else
		if [ -s /var/run/$base.pid ]
		then
			echo "$1 is not running but /var/run/$base.pid exists"
			return 1
		else
			echo "$1 is not running"
	 	fi
	fi
}

progressbar()
{
	if [ $# != 1 ]
	then
		echo "Usage: progressbar {progress}"
		exit 1
	fi

	if [ -f /proc/splash ]
	then
		echo "show $(( 65534 * $1 / 100 ))" > /proc/splash
	fi
}

kernel_major_version()
{
	local KV
	KV="$(uname -r|cut -d. -f1-2)"
	echo "${KV}"
}

dolisting() 
{
	local x=
	local y=
	local tmpstr=
	local mylist=
	local mypath="${*}"

	if [ "${mypath%/\*}" != "${mypath}" ]
	then
		mypath="${mypath%/\*}"
	fi

	for x in ${mypath}
	do
		[ ! -e "${x}" ] && continue

		if [ ! -d "${x}" ] && ( [ -L "${x}" -o -f "${x}" ] )
		then
			mylist="${mylist} $(ls "${x}" 2> /dev/null)"
		else
			[ "${x%/}" != "${x}" ] && x="${x%/}"

			cd "${x}"; tmpstr="$(ls)"

			for y in ${tmpstr}
			do
				mylist="${mylist} ${x}/${y}"
			done
		fi
	done

	echo "${mylist}"
}

# searches /proc/mounts for mounted fstypes (like ext3)
is_fstype_mounted() {
	local filesys
	local i
	filesys=$1

	i="$(cat /proc/mounts | grep ${filesys} | cut -d ' ' -f3)"
	[[ ${i} != ${filesys} ]] && return 1

	return 0
}

# searches /proc/mounts for mounted fs names (like udev, proc)
is_fs_mounted() {
	local filesys
	local i
	filesys=$1

	i="$(cat /proc/mounts | grep ${filesys} | cut -d ' ' -f1)"
	[[ ${i} != ${filesys} ]] && return 1

	return 0
}

# checks if kernel supports fs xy
kernel_supports_fs() {
	local filesys
	local i
	filesys=$1

	i="$(cat /proc/filesystems | grep ${filesys} | cut -d $'\t' -f2)"
	[[ ${i} != ${filesys} ]] && return 1

	return 0
}

# bool is_older_than(reference, files/dirs to check)
#
#   return 0 if any of the files/dirs are newer than
#   the reference file
#
#   EXAMPLE: if is_older_than a.out *.o ; then ...
is_older_than() {
	local x=
	local ref="$1"
	shift

	for x in "$@"
	do
		[[ ${x} -nt ${ref} ]] && return 0

		if [[ -d ${x} ]]
		then
			is_older_than "${ref}" "${x}"/* && return 0
		fi
	done

	return 1
}
1	niro	2	#!/bin/bash
2	niro	274	# $Header: /home/cvsd/magellan-cvs/magellan-src/magellan-initscripts/etc/rc.d/init.d/functions,v 1.5 2005-10-21 15:21:41 niro Exp $
3	niro	71
4	niro	2	# Begin $rc_base/init.d/functions - Run Level Control Functions
5
6			# Based on functions script from LFS-3.1 and earlier.
7			# Rewritten by Gerard Beekmans - gerard@linuxfromscratch.org
8
9			# With code based on Matthias Benkmann's simpleinit-msb @
10			# http://winterdrache.de/linux/newboot/index.html
11
12			umask 022
13
14			export PATH="/bin:/usr/bin:/sbin:/usr/sbin"
15
16			KILLDELAY=3
17
18			COLUMNS=$(stty size)
19			COLUMNS=${COLUMNS##* }
20			COL=$[ $COLUMNS - 10 ]
21			WCOL=$[ $COLUMNS - 30 ]
22			WWCOL=$[ $COLUMNS - 40 ]
23			SET_COL="echo -en \\033[${COL}G"
24			SET_WCOL="echo -en \\033[${WCOL}G"
25			SET_WWCOL="echo -en \\033[${WWCOL}G"
26			CURS_UP="echo -en \\033[A"
27
28			NORMAL="echo -en \\033[0;39m"
29			SUCCESS="echo -en \\033[1;32m"
30			WARNING="echo -en \\033[1;33m"
31			FAILURE="echo -en \\033[1;31m"
32
33			COLRED="\033[1;6m\033[31m"
34			COLGREEN="\033[1;6m\033[32m"
35			COLYELLOW="\033[1;6m\033[33m"
36			COLBLUE="\033[1;6m\033[34m"
37			COLMAGENTA="\033[1;6m\033[35m"
38			COLWHITE="\033[1;6m\033[37m"
39			COLDEFAULT="\033[0m"
40
41			COLOREDSTAR="${COLBLUE}(${COLGREEN}*${COLBLUE})${COLDEFAULT} "
42
43			#location to save the started services
44			svcdir="/var/lib/init.d"
45			svclib="/lib/rcscripts"
46			svcmount="no"
47			svcfstype="tmpfs"
48			svcsize=1024
49
50
51			# dummy function; needed if splashutils are not installed
52			splash() {
53	niro	12	return 0
54	niro	2	}
55
56
57			#source splash functions if exists
58			[ -f /etc/init.d/splash-functions ] && source /etc/init.d/splash-functions
59
60
61
62			print_error_msg()
63			{
64			return 0
65			echo
66			$FAILURE
67			echo -e " An Error occurred."
68			echo -e " Script: ${COLWHITE}$i${COLRED}"
69			echo -e " Exitcode: ${COLWHITE}$error_value${COLRED}"
70			echo
71			$NORMAL
72			echo
73			echo "Press Enter to continue..."
74			read
75			}
76
77			check_script_status()
78			{
79			if [ ! -f $i ]
80			then
81			echo "$i is not a valid symlink"
82			continue
83			fi
84
85			if [ ! -x $i ]
86			then
87			echo "$i is not executable, skipping"
88			continue
89			fi
90			}
91
92			update_svcstatus()
93			{
94			#$1 script
95			#$2 start/stop
96
97			local SVCDIR_MOUNTED
98			local SVCD_INITSCRIPT
99			local x
100
101
102			#do this only if proc is mounted
103			[ ! -f /proc/mounts ] && return 0
104
105			#check if svcdir is mounted
106			SVCDIR_MOUNTED="$(cat /proc/mounts \| grep ${svcdir} \| cut -d ' ' -f2)"
107			if [ "${SVCDIR_MOUNTED}" == "${svcdir}" ]
108			then
109			#check if statedir exists
110			[ ! -d ${svcdir}/started ] && mkdir ${svcdir}/started
111	niro	71
112	niro	2	#get real name of the initscript, not from the symlink
113			if [ -L "$0" ]
114			then
115			x="$(readlink $0)"
116			SVCD_INITSCRIPT="$(basename ${x})"
117			else
118			SVCD_INITSCRIPT="$(basename $0)"
119			fi
120
121			case $1 in
122			start)
123			#write to svcddir
124			#write state
125			echo ok > ${svcdir}/started/"${SVCD_INITSCRIPT}"
126			;;
127			stop)
128			#echo "$(ls ${svcdir}/started)"
129			if [ -f ${svcdir}/started/${SVCD_INITSCRIPT} ]
130			then
131			rm ${svcdir}/started/${SVCD_INITSCRIPT}
132			fi
133			;;
134			esac
135			fi
136			}
137
138			evaluate_retval()
139			{
140			error_value=$?
141
142			if [ $error_value = 0 ]
143			then
144			print_status success
145			else
146			print_status failure
147			fi
148
149			return $error_value
150			}
151
152			print_status()
153			{
154			if [ $# = 0 ]
155			then
156			echo "Usage: $0 {success\|warning\|failure}"
157			return 1
158			fi
159
160			$CURS_UP
161
162			case "$1" in
163			success)
164			$SET_COL
165			echo -e -n $COLBLUE"[ "
166			$SUCCESS
167			echo -e -n "OK"
168			echo -e $COLBLUE" ]"
169			$NORMAL
170			;;
171			warning)
172			case "$2" in
173			running)
174			$SET_WCOL
175			echo "Already running"
176			$CURS_UP
177			;;
178			not_running)
179			$SET_WCOL
180			echo "Not running"
181			$CURS_UP
182			;;
183			esac
184			$SET_COL
185			echo -e -n $COLBLUE"[ "
186			$WARNING
187			echo -e -n "ATTN"
188			echo -e $COLBLUE" ]"
189			$NORMAL
190			;;
191			failure)
192			$SET_COL
193			echo -e -n $COLBLUE"["
194			$FAILURE
195			echo -e -n "FAILED"
196			echo -e $COLBLUE"]"
197			$NORMAL
198			;;
199			esac
200			}
201
202			getpids()
203			{
204			base=${1##*/}
205			pidlist=$(pidof -o $$ -o $PPID -x $base)
206			}
207
208			loadproc()
209			{
210			if [ $# = 0 ]
211			then
212			echo "Usage: loadproc {program}"
213			exit 1
214			fi
215
216			getpids $1
217
218			if [ -z "$pidlist" ]
219			then
220			"$@"
221			evaluate_retval
222			else
223			$SET_WCOL
224			print_status warning running
225			fi
226			}
227
228			killproc()
229			{
230			if [ $# = 0 ]
231			then
232			echo "Usage: killproc {program} [signal]"
233			exit 1
234			fi
235
236			if [ -z "$2" ]; then
237			signal=TERM
238			fallback=KILL
239			else
240			signal=${2##-}
241			signal=${signal##SIG}
242			fallback=""
243			fi
244
245			getpids $1
246
247			if [ -n "$pidlist" ]; then
248			failure=0
249
250			for pid in $pidlist
251			do
252			kill -$signal $pid 2>/dev/null
253
254			for ((i=0; $i<5000; i=$i+1)); do :; done
255
256			for ((i=0; $i<$KILLDELAY; i=$i+1)); do
257			kill -0 $pid 2>/dev/null \|\| break
258			sleep 1
259			done
260
261			if [ -n "$fallback" ]; then kill -$fallback $pid 2>/dev/null; fi
262
263			kill -0 $pid 2>/dev/null && failure=1
264			done
265
266			base=${1##*/}
267			if [ $failure = 0 ]; then rm -f /var/run/$base.pid; fi
268
269			(exit $failure)
270			evaluate_retval
271			else
272			$SET_WCOL
273			print_status warning not_running
274			fi
275			}
276
277			reloadproc()
278			{
279			if [ $# = 0 ]
280			then
281			echo "Usage: reloadproc {program} [signal]"
282			exit 1
283			fi
284
285			if [ -z "$2" ]; then
286			signal=HUP
287			else
288			signal=${2##-}
289			signal=${signal##SIG}
290
291			fi
292
293			getpids $1
294
295			if [ -n "$pidlist" ]
296			then
297			failure=0
298
299			for pid in $pidlist
300			do
301			kill -$signal $pid \|\| failure=1
302			done
303
304			(exit $failure)
305			evaluate_retval
306			else
307			$SET_WCOL
308			print_status warning not_running
309			fi
310			}
311
312			statusproc()
313			{
314			if [ $# = 0 ]
315			then
316			echo "Usage: statusproc {program}"
317			exit 1
318			fi
319
320			base=${1##*/}
321			getpids $base
322
323			if [ -n "$pidlist" ]
324			then
325			echo "$base is running with Process ID(s) $pidlist"
326			else
327			if [ -s /var/run/$base.pid ]
328			then
329			echo "$1 is not running but /var/run/$base.pid exists"
330			return 1
331			else
332			echo "$1 is not running"
333			fi
334			fi
335			}
336
337			progressbar()
338			{
339			if [ $# != 1 ]
340			then
341			echo "Usage: progressbar {progress}"
342			exit 1
343			fi
344
345			if [ -f /proc/splash ]
346			then
347			echo "show $(( 65534 * $1 / 100 ))" > /proc/splash
348			fi
349			}
350
351			kernel_major_version()
352			{
353			local KV
354			KV="$(uname -r\|cut -d. -f1-2)"
355			echo "${KV}"
356			}
357
358			dolisting()
359			{
360			local x=
361			local y=
362			local tmpstr=
363			local mylist=
364			local mypath="${*}"
365
366			if [ "${mypath%/\*}" != "${mypath}" ]
367			then
368			mypath="${mypath%/\*}"
369			fi
370
371			for x in ${mypath}
372			do
373			[ ! -e "${x}" ] && continue
374
375			if [ ! -d "${x}" ] && ( [ -L "${x}" -o -f "${x}" ] )
376			then
377			mylist="${mylist} $(ls "${x}" 2> /dev/null)"
378			else
379			[ "${x%/}" != "${x}" ] && x="${x%/}"
380
381			cd "${x}"; tmpstr="$(ls)"
382
383			for y in ${tmpstr}
384			do
385			mylist="${mylist} ${x}/${y}"
386			done
387			fi
388			done
389
390			echo "${mylist}"
391			}
392	niro	147
393			# searches /proc/mounts for mounted fstypes (like ext3)
394			is_fstype_mounted() {
395			local filesys
396			local i
397			filesys=$1
398
399			i="$(cat /proc/mounts \| grep ${filesys} \| cut -d ' ' -f3)"
400			[[ ${i} != ${filesys} ]] && return 1
401
402			return 0
403			}
404
405			# searches /proc/mounts for mounted fs names (like udev, proc)
406			is_fs_mounted() {
407			local filesys
408			local i
409			filesys=$1
410
411			i="$(cat /proc/mounts \| grep ${filesys} \| cut -d ' ' -f1)"
412			[[ ${i} != ${filesys} ]] && return 1
413
414			return 0
415			}
416
417			# checks if kernel supports fs xy
418			kernel_supports_fs() {
419			local filesys
420			local i
421			filesys=$1
422
423			i="$(cat /proc/filesystems \| grep ${filesys} \| cut -d $'\t' -f2)"
424			[[ ${i} != ${filesys} ]] && return 1
425
426			return 0
427			}
428	niro	274
429			# bool is_older_than(reference, files/dirs to check)
430			#
431			# return 0 if any of the files/dirs are newer than
432			# the reference file
433			#
434			# EXAMPLE: if is_older_than a.out *.o ; then ...
435			is_older_than() {
436			local x=
437			local ref="$1"
438			shift
439
440			for x in "$@"
441			do
442			[[ ${x} -nt ${ref} ]] && return 0
443
444			if [[ -d ${x} ]]
445			then
446			is_older_than "${ref}" "${x}"/* && return 0
447			fi
448			done
449
450			return 1
451			}