Contents of /tags/busybox-init-0_1_15/rc/functions
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Thu Jan 27 20:41:59 2011 UTC (13 years, 8 months ago) by niro
Original Path: trunk/busybox-initscripts/rc/functions
File size: 7530 byte(s)
Thu Jan 27 20:41:59 2011 UTC (13 years, 8 months ago) by niro
Original Path: trunk/busybox-initscripts/rc/functions
File size: 7530 byte(s)
-merged with upstream
1 | #!/bin/sh |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/busybox-initscripts/rc/functions,v 1.2 2008-06-02 22:53:36 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 | rc_echo() { echo $@; } |
51 | rc_print() { rc_echo -e "${COLOREDSTAR}$@"; } |
52 | |
53 | # dummy function; needed if splashutils are not installed |
54 | splash() { return 0; } |
55 | |
56 | # source splash functions if exists |
57 | [ -f /etc/init.d/splash-functions ] && source /etc/init.d/splash-functions |
58 | |
59 | print_error_msg() |
60 | { |
61 | return 0 |
62 | echo |
63 | $FAILURE |
64 | echo -e " An Error occurred." |
65 | echo -e " Script: ${COLWHITE}$i${COLRED}" |
66 | echo -e " Exitcode: ${COLWHITE}$error_value${COLRED}" |
67 | echo |
68 | $NORMAL |
69 | echo |
70 | echo "Press Enter to continue..." |
71 | read |
72 | } |
73 | |
74 | check_script_status() |
75 | { |
76 | if [ ! -f $i ] |
77 | then |
78 | echo "$i is not a valid symlink" |
79 | continue |
80 | fi |
81 | |
82 | if [ ! -x $i ] |
83 | then |
84 | echo "$i is not executable, skipping" |
85 | continue |
86 | fi |
87 | } |
88 | |
89 | update_svcstatus() |
90 | { |
91 | #$1 script |
92 | #$2 start/stop |
93 | |
94 | local SVCDIR_MOUNTED |
95 | local SVCD_INITSCRIPT |
96 | local x |
97 | |
98 | #do this only if proc is mounted |
99 | [ ! -f /proc/mounts ] && return 0 |
100 | |
101 | #check if svcdir is mounted |
102 | SVCDIR_MOUNTED="$(cat /proc/mounts | grep ${svcdir} | cut -d ' ' -f2)" |
103 | if [ "${SVCDIR_MOUNTED}" == "${svcdir}" ] |
104 | then |
105 | #check if statedir exists |
106 | [ ! -d ${svcdir}/started ] && mkdir ${svcdir}/started |
107 | |
108 | #get real name of the initscript, not from the symlink |
109 | if [ -L "$0" ] |
110 | then |
111 | x="$(readlink $0)" |
112 | SVCD_INITSCRIPT="$(basename ${x})" |
113 | else |
114 | SVCD_INITSCRIPT="$(basename $0)" |
115 | fi |
116 | |
117 | case $1 in |
118 | start) |
119 | #write to svcddir |
120 | #write state |
121 | echo ok > ${svcdir}/started/"${SVCD_INITSCRIPT}" |
122 | ;; |
123 | stop) |
124 | #echo "$(ls ${svcdir}/started)" |
125 | if [ -f ${svcdir}/started/${SVCD_INITSCRIPT} ] |
126 | then |
127 | rm ${svcdir}/started/${SVCD_INITSCRIPT} |
128 | fi |
129 | ;; |
130 | esac |
131 | fi |
132 | } |
133 | |
134 | evaluate_retval() |
135 | { |
136 | local error_value="$1" |
137 | [[ -z ${error_value} ]] && error_value=$? |
138 | |
139 | if [[ ${error_value} = 0 ]] |
140 | then |
141 | print_status success |
142 | else |
143 | print_status failure |
144 | fi |
145 | |
146 | return ${error_value} |
147 | } |
148 | |
149 | print_status() |
150 | { |
151 | if [ $# = 0 ] |
152 | then |
153 | echo "Usage: $0 {success|warning|failure}" |
154 | return 1 |
155 | fi |
156 | |
157 | $CURS_UP |
158 | |
159 | case "$1" in |
160 | success) |
161 | $SET_COL |
162 | echo -e -n $COLBLUE"[ " |
163 | $SUCCESS |
164 | echo -e -n "OK" |
165 | echo -e $COLBLUE" ]" |
166 | $NORMAL |
167 | ;; |
168 | warning) |
169 | case "$2" in |
170 | running) |
171 | $SET_WCOL |
172 | echo "Already running" |
173 | $CURS_UP |
174 | ;; |
175 | not_running) |
176 | $SET_WCOL |
177 | echo "Not running" |
178 | $CURS_UP |
179 | ;; |
180 | esac |
181 | $SET_COL |
182 | echo -e -n $COLBLUE"[ " |
183 | $WARNING |
184 | echo -e -n "ATTN" |
185 | echo -e $COLBLUE" ]" |
186 | $NORMAL |
187 | ;; |
188 | failure) |
189 | $SET_COL |
190 | echo -e -n $COLBLUE"[" |
191 | $FAILURE |
192 | echo -e -n "FAILED" |
193 | echo -e $COLBLUE"]" |
194 | $NORMAL |
195 | ;; |
196 | esac |
197 | } |
198 | |
199 | getpids() |
200 | { |
201 | base=${1##*/} |
202 | pidlist=$(pidof -o $$ -o $PPID $base) |
203 | } |
204 | |
205 | loadproc() |
206 | { |
207 | if [ $# = 0 ] |
208 | then |
209 | echo "Usage: loadproc {program}" |
210 | exit 1 |
211 | fi |
212 | |
213 | getpids $1 |
214 | |
215 | if [ -z "$pidlist" ] |
216 | then |
217 | "$@" |
218 | evaluate_retval |
219 | else |
220 | $SET_WCOL |
221 | print_status warning running |
222 | fi |
223 | } |
224 | |
225 | killproc() |
226 | { |
227 | if [ $# = 0 ] |
228 | then |
229 | echo "Usage: killproc {program} [signal]" |
230 | exit 1 |
231 | fi |
232 | |
233 | if [ -z "$2" ]; then |
234 | signal=TERM |
235 | fallback=KILL |
236 | else |
237 | signal=${2##-} |
238 | signal=${signal##SIG} |
239 | fallback="" |
240 | fi |
241 | |
242 | getpids $1 |
243 | |
244 | if [ -n "$pidlist" ]; then |
245 | failure=0 |
246 | |
247 | for pid in $pidlist |
248 | do |
249 | kill -$signal $pid 2>/dev/null |
250 | |
251 | for ((i=0; $i<5000; i=$i+1)); do :; done |
252 | |
253 | for ((i=0; $i<$KILLDELAY; i=$i+1)); do |
254 | kill -0 $pid 2>/dev/null || break |
255 | sleep 1 |
256 | done |
257 | |
258 | if [ -n "$fallback" ]; then kill -$fallback $pid 2>/dev/null; fi |
259 | |
260 | kill -0 $pid 2>/dev/null && failure=1 |
261 | done |
262 | |
263 | base=${1##*/} |
264 | if [ $failure = 0 ]; then rm -f /var/run/$base.pid; fi |
265 | |
266 | (exit $failure) |
267 | evaluate_retval |
268 | else |
269 | $SET_WCOL |
270 | print_status warning not_running |
271 | fi |
272 | } |
273 | |
274 | reloadproc() |
275 | { |
276 | if [ $# = 0 ] |
277 | then |
278 | echo "Usage: reloadproc {program} [signal]" |
279 | exit 1 |
280 | fi |
281 | |
282 | if [ -z "$2" ]; then |
283 | signal=HUP |
284 | else |
285 | signal=${2##-} |
286 | signal=${signal##SIG} |
287 | fi |
288 | |
289 | getpids $1 |
290 | |
291 | if [ -n "$pidlist" ] |
292 | then |
293 | failure=0 |
294 | |
295 | for pid in $pidlist |
296 | do |
297 | kill -$signal $pid || failure=1 |
298 | done |
299 | |
300 | (exit $failure) |
301 | evaluate_retval |
302 | else |
303 | $SET_WCOL |
304 | print_status warning not_running |
305 | fi |
306 | } |
307 | |
308 | statusproc() |
309 | { |
310 | if [ $# = 0 ] |
311 | then |
312 | echo "Usage: statusproc {program}" |
313 | exit 1 |
314 | fi |
315 | |
316 | base=${1##*/} |
317 | getpids $base |
318 | |
319 | if [ -n "$pidlist" ] |
320 | then |
321 | echo "$base is running with Process ID(s) $pidlist" |
322 | else |
323 | if [ -s /var/run/$base.pid ] |
324 | then |
325 | echo "$1 is not running but /var/run/$base.pid exists" |
326 | return 1 |
327 | else |
328 | echo "$1 is not running" |
329 | fi |
330 | fi |
331 | } |
332 | |
333 | progressbar() |
334 | { |
335 | if [ $# != 1 ] |
336 | then |
337 | echo "Usage: progressbar {progress}" |
338 | exit 1 |
339 | fi |
340 | |
341 | if [ -f /proc/splash ] |
342 | then |
343 | echo "show $(( 65534 * $1 / 100 ))" > /proc/splash |
344 | fi |
345 | } |
346 | |
347 | kernel_version() |
348 | { |
349 | local KV="$(uname -r | cut -d- -f1)" |
350 | echo "${KV}" |
351 | } |
352 | |
353 | kernel_major_version() |
354 | { |
355 | local KV |
356 | KV="$(uname -r | cut -d. -f1-2)" |
357 | echo "${KV}" |
358 | } |
359 | |
360 | dolisting() |
361 | { |
362 | local x= |
363 | local y= |
364 | local tmpstr= |
365 | local mylist= |
366 | local mypath="${*}" |
367 | |
368 | if [ "${mypath%/\*}" != "${mypath}" ] |
369 | then |
370 | mypath="${mypath%/\*}" |
371 | fi |
372 | |
373 | for x in ${mypath} |
374 | do |
375 | [ ! -e "${x}" ] && continue |
376 | |
377 | if [ ! -d "${x}" ] && ( [ -L "${x}" -o -f "${x}" ] ) |
378 | then |
379 | mylist="${mylist} $(ls "${x}" 2> /dev/null)" |
380 | else |
381 | [ "${x%/}" != "${x}" ] && x="${x%/}" |
382 | |
383 | cd "${x}"; tmpstr="$(ls)" |
384 | |
385 | for y in ${tmpstr} |
386 | do |
387 | mylist="${mylist} ${x}/${y}" |
388 | done |
389 | fi |
390 | done |
391 | |
392 | echo "${mylist}" |
393 | } |
394 | |
395 | # searches /proc/mounts for mounted fstypes (like ext3) |
396 | is_fstype_mounted() |
397 | { |
398 | local filesys |
399 | local i |
400 | filesys=$1 |
401 | |
402 | i="$(cat /proc/mounts | grep ${filesys} | cut -d ' ' -f3)" |
403 | [[ ${i} != ${filesys} ]] && return 1 |
404 | |
405 | return 0 |
406 | } |
407 | |
408 | # searches /proc/mounts for mounted fs names (like udev, proc) |
409 | is_fs_mounted() |
410 | { |
411 | local filesys |
412 | local i |
413 | filesys=$1 |
414 | |
415 | i="$(cat /proc/mounts | grep ${filesys} | cut -d ' ' -f1)" |
416 | [[ ${i} != ${filesys} ]] && return 1 |
417 | |
418 | return 0 |
419 | } |
420 | |
421 | # checks if kernel supports fs xy |
422 | kernel_supports_fs() |
423 | { |
424 | local filesys |
425 | local i |
426 | filesys=$1 |
427 | |
428 | i="$(cat /proc/filesystems | grep ${filesys} | cut -d $'\t' -f2)" |
429 | [[ ${i} != ${filesys} ]] && return 1 |
430 | |
431 | return 0 |
432 | } |
433 | |
434 | # bool is_older_than(reference, files/dirs to check) |
435 | # |
436 | # return 0 if any of the files/dirs are newer than |
437 | # the reference file |
438 | # |
439 | # EXAMPLE: if is_older_than a.out *.o ; then ... |
440 | is_older_than() |
441 | { |
442 | local x= |
443 | local ref="$1" |
444 | shift |
445 | |
446 | for x in "$@" |
447 | do |
448 | [[ ${x} -nt ${ref} ]] && return 0 |
449 | |
450 | if [[ -d ${x} ]] |
451 | then |
452 | is_older_than "${ref}" "${x}"/* && return 0 |
453 | fi |
454 | done |
455 | |
456 | return 1 |
457 | } |
458 | |
459 | start_devicemanager() { touch /dev/.none; return 0; } |
460 | stop_devicemanager() { return 0; } |