Annotation 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 | niro | 724 | #!/bin/sh |
2 | niro | 729 | # $Header: /home/cvsd/magellan-cvs/magellan-src/busybox-initscripts/rc/functions,v 1.2 2008-06-02 22:53:36 niro Exp $ |
3 | niro | 724 | |
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 | niro | 1195 | # location to save the started services |
44 | niro | 724 | svcdir="/var/lib/init.d" |
45 | svclib="/lib/rcscripts" | ||
46 | svcmount="no" | ||
47 | svcfstype="tmpfs" | ||
48 | svcsize=1024 | ||
49 | |||
50 | niro | 1168 | rc_echo() { echo $@; } |
51 | rc_print() { rc_echo -e "${COLOREDSTAR}$@"; } | ||
52 | niro | 724 | |
53 | # dummy function; needed if splashutils are not installed | ||
54 | splash() { return 0; } | ||
55 | |||
56 | niro | 1195 | # source splash functions if exists |
57 | niro | 724 | [ -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 | niro | 729 | pidlist=$(pidof -o $$ -o $PPID $base) |
203 | niro | 724 | } |
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 | niro | 1195 | |
459 | start_devicemanager() { touch /dev/.none; return 0; } | ||
460 | stop_devicemanager() { return 0; } |