rc.d/init.d/functions

#!/bin/bash
# $Header: /home/cvsd/magellan-cvs/magellan-src/magellan-initscripts/etc/rc.d/init.d/functions,v 1.7 2007-07-21 19:23:16 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()
{
	local error_value="$1"
	[[ -z ${error_value} ]] && error_value=$?

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

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	#!/bin/bash
2	# $Header: /home/cvsd/magellan-cvs/magellan-src/magellan-initscripts/etc/rc.d/init.d/functions,v 1.7 2007-07-21 19:23:16 niro Exp $
3
4	# 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	return 0
54	}
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
112	#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	local error_value="$1"
141	[[ -z ${error_value} ]] && error_value=$?
142
143	if [[ ${error_value} = 0 ]]
144	then
145	print_status success
146	else
147	print_status failure
148	fi
149
150	return ${error_value}
151	}
152
153	print_status()
154	{
155	if [ $# = 0 ]
156	then
157	echo "Usage: $0 {success\|warning\|failure}"
158	return 1
159	fi
160
161	$CURS_UP
162
163	case "$1" in
164	success)
165	$SET_COL
166	echo -e -n $COLBLUE"[ "
167	$SUCCESS
168	echo -e -n "OK"
169	echo -e $COLBLUE" ]"
170	$NORMAL
171	;;
172	warning)
173	case "$2" in
174	running)
175	$SET_WCOL
176	echo "Already running"
177	$CURS_UP
178	;;
179	not_running)
180	$SET_WCOL
181	echo "Not running"
182	$CURS_UP
183	;;
184	esac
185	$SET_COL
186	echo -e -n $COLBLUE"[ "
187	$WARNING
188	echo -e -n "ATTN"
189	echo -e $COLBLUE" ]"
190	$NORMAL
191	;;
192	failure)
193	$SET_COL
194	echo -e -n $COLBLUE"["
195	$FAILURE
196	echo -e -n "FAILED"
197	echo -e $COLBLUE"]"
198	$NORMAL
199	;;
200	esac
201	}
202
203	getpids()
204	{
205	base=${1##*/}
206	pidlist=$(pidof -o $$ -o $PPID -x $base)
207	}
208
209	loadproc()
210	{
211	if [ $# = 0 ]
212	then
213	echo "Usage: loadproc {program}"
214	exit 1
215	fi
216
217	getpids $1
218
219	if [ -z "$pidlist" ]
220	then
221	"$@"
222	evaluate_retval
223	else
224	$SET_WCOL
225	print_status warning running
226	fi
227	}
228
229	killproc()
230	{
231	if [ $# = 0 ]
232	then
233	echo "Usage: killproc {program} [signal]"
234	exit 1
235	fi
236
237	if [ -z "$2" ]; then
238	signal=TERM
239	fallback=KILL
240	else
241	signal=${2##-}
242	signal=${signal##SIG}
243	fallback=""
244	fi
245
246	getpids $1
247
248	if [ -n "$pidlist" ]; then
249	failure=0
250
251	for pid in $pidlist
252	do
253	kill -$signal $pid 2>/dev/null
254
255	for ((i=0; $i<5000; i=$i+1)); do :; done
256
257	for ((i=0; $i<$KILLDELAY; i=$i+1)); do
258	kill -0 $pid 2>/dev/null \|\| break
259	sleep 1
260	done
261
262	if [ -n "$fallback" ]; then kill -$fallback $pid 2>/dev/null; fi
263
264	kill -0 $pid 2>/dev/null && failure=1
265	done
266
267	base=${1##*/}
268	if [ $failure = 0 ]; then rm -f /var/run/$base.pid; fi
269
270	(exit $failure)
271	evaluate_retval
272	else
273	$SET_WCOL
274	print_status warning not_running
275	fi
276	}
277
278	reloadproc()
279	{
280	if [ $# = 0 ]
281	then
282	echo "Usage: reloadproc {program} [signal]"
283	exit 1
284	fi
285
286	if [ -z "$2" ]; then
287	signal=HUP
288	else
289	signal=${2##-}
290	signal=${signal##SIG}
291
292	fi
293
294	getpids $1
295
296	if [ -n "$pidlist" ]
297	then
298	failure=0
299
300	for pid in $pidlist
301	do
302	kill -$signal $pid \|\| failure=1
303	done
304
305	(exit $failure)
306	evaluate_retval
307	else
308	$SET_WCOL
309	print_status warning not_running
310	fi
311	}
312
313	statusproc()
314	{
315	if [ $# = 0 ]
316	then
317	echo "Usage: statusproc {program}"
318	exit 1
319	fi
320
321	base=${1##*/}
322	getpids $base
323
324	if [ -n "$pidlist" ]
325	then
326	echo "$base is running with Process ID(s) $pidlist"
327	else
328	if [ -s /var/run/$base.pid ]
329	then
330	echo "$1 is not running but /var/run/$base.pid exists"
331	return 1
332	else
333	echo "$1 is not running"
334	fi
335	fi
336	}
337
338	progressbar()
339	{
340	if [ $# != 1 ]
341	then
342	echo "Usage: progressbar {progress}"
343	exit 1
344	fi
345
346	if [ -f /proc/splash ]
347	then
348	echo "show $(( 65534 * $1 / 100 ))" > /proc/splash
349	fi
350	}
351
352	kernel_version()
353	{
354	local KV="$(uname -r \| cut -d- -f1)"
355	echo "${KV}"
356	}
357
358	kernel_major_version()
359	{
360	local KV
361	KV="$(uname -r \| cut -d. -f1-2)"
362	echo "${KV}"
363	}
364
365	dolisting()
366	{
367	local x=
368	local y=
369	local tmpstr=
370	local mylist=
371	local mypath="${*}"
372
373	if [ "${mypath%/\*}" != "${mypath}" ]
374	then
375	mypath="${mypath%/\*}"
376	fi
377
378	for x in ${mypath}
379	do
380	[ ! -e "${x}" ] && continue
381
382	if [ ! -d "${x}" ] && ( [ -L "${x}" -o -f "${x}" ] )
383	then
384	mylist="${mylist} $(ls "${x}" 2> /dev/null)"
385	else
386	[ "${x%/}" != "${x}" ] && x="${x%/}"
387
388	cd "${x}"; tmpstr="$(ls)"
389
390	for y in ${tmpstr}
391	do
392	mylist="${mylist} ${x}/${y}"
393	done
394	fi
395	done
396
397	echo "${mylist}"
398	}
399
400	# searches /proc/mounts for mounted fstypes (like ext3)
401	is_fstype_mounted() {
402	local filesys
403	local i
404	filesys=$1
405
406	i="$(cat /proc/mounts \| grep ${filesys} \| cut -d ' ' -f3)"
407	[[ ${i} != ${filesys} ]] && return 1
408
409	return 0
410	}
411
412	# searches /proc/mounts for mounted fs names (like udev, proc)
413	is_fs_mounted() {
414	local filesys
415	local i
416	filesys=$1
417
418	i="$(cat /proc/mounts \| grep ${filesys} \| cut -d ' ' -f1)"
419	[[ ${i} != ${filesys} ]] && return 1
420
421	return 0
422	}
423
424	# checks if kernel supports fs xy
425	kernel_supports_fs() {
426	local filesys
427	local i
428	filesys=$1
429
430	i="$(cat /proc/filesystems \| grep ${filesys} \| cut -d $'\t' -f2)"
431	[[ ${i} != ${filesys} ]] && return 1
432
433	return 0
434	}
435
436	# bool is_older_than(reference, files/dirs to check)
437	#
438	# return 0 if any of the files/dirs are newer than
439	# the reference file
440	#
441	# EXAMPLE: if is_older_than a.out *.o ; then ...
442	is_older_than() {
443	local x=
444	local ref="$1"
445	shift
446
447	for x in "$@"
448	do
449	[[ ${x} -nt ${ref} ]] && return 0
450
451	if [[ -d ${x} ]]
452	then
453	is_older_than "${ref}" "${x}"/* && return 0
454	fi
455	done
456
457	return 1
458	}