Annotation of /tags/busybox-init-0_1_7/rc/functions
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Mon Jun 2 22:53:36 2008 UTC (16 years, 3 months ago) by niro
Original Path: trunk/busybox-initscripts/rc/functions
File size: 7374 byte(s)
Mon Jun 2 22:53:36 2008 UTC (16 years, 3 months ago) by niro
Original Path: trunk/busybox-initscripts/rc/functions
File size: 7374 byte(s)
-busybox doesn't know the -x function in pidof
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 | #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() { return 0; } | ||
53 | |||
54 | |||
55 | #source splash functions if exists | ||
56 | [ -f /etc/init.d/splash-functions ] && source /etc/init.d/splash-functions | ||
57 | |||
58 | |||
59 | |||
60 | print_error_msg() | ||
61 | { | ||
62 | return 0 | ||
63 | echo | ||
64 | $FAILURE | ||
65 | echo -e " An Error occurred." | ||
66 | echo -e " Script: ${COLWHITE}$i${COLRED}" | ||
67 | echo -e " Exitcode: ${COLWHITE}$error_value${COLRED}" | ||
68 | echo | ||
69 | $NORMAL | ||
70 | echo | ||
71 | echo "Press Enter to continue..." | ||
72 | read | ||
73 | } | ||
74 | |||
75 | check_script_status() | ||
76 | { | ||
77 | if [ ! -f $i ] | ||
78 | then | ||
79 | echo "$i is not a valid symlink" | ||
80 | continue | ||
81 | fi | ||
82 | |||
83 | if [ ! -x $i ] | ||
84 | then | ||
85 | echo "$i is not executable, skipping" | ||
86 | continue | ||
87 | fi | ||
88 | } | ||
89 | |||
90 | update_svcstatus() | ||
91 | { | ||
92 | #$1 script | ||
93 | #$2 start/stop | ||
94 | |||
95 | local SVCDIR_MOUNTED | ||
96 | local SVCD_INITSCRIPT | ||
97 | local x | ||
98 | |||
99 | |||
100 | #do this only if proc is mounted | ||
101 | [ ! -f /proc/mounts ] && return 0 | ||
102 | |||
103 | #check if svcdir is mounted | ||
104 | SVCDIR_MOUNTED="$(cat /proc/mounts | grep ${svcdir} | cut -d ' ' -f2)" | ||
105 | if [ "${SVCDIR_MOUNTED}" == "${svcdir}" ] | ||
106 | then | ||
107 | #check if statedir exists | ||
108 | [ ! -d ${svcdir}/started ] && mkdir ${svcdir}/started | ||
109 | |||
110 | #get real name of the initscript, not from the symlink | ||
111 | if [ -L "$0" ] | ||
112 | then | ||
113 | x="$(readlink $0)" | ||
114 | SVCD_INITSCRIPT="$(basename ${x})" | ||
115 | else | ||
116 | SVCD_INITSCRIPT="$(basename $0)" | ||
117 | fi | ||
118 | |||
119 | case $1 in | ||
120 | start) | ||
121 | #write to svcddir | ||
122 | #write state | ||
123 | echo ok > ${svcdir}/started/"${SVCD_INITSCRIPT}" | ||
124 | ;; | ||
125 | stop) | ||
126 | #echo "$(ls ${svcdir}/started)" | ||
127 | if [ -f ${svcdir}/started/${SVCD_INITSCRIPT} ] | ||
128 | then | ||
129 | rm ${svcdir}/started/${SVCD_INITSCRIPT} | ||
130 | fi | ||
131 | ;; | ||
132 | esac | ||
133 | fi | ||
134 | } | ||
135 | |||
136 | evaluate_retval() | ||
137 | { | ||
138 | local error_value="$1" | ||
139 | [[ -z ${error_value} ]] && error_value=$? | ||
140 | |||
141 | if [[ ${error_value} = 0 ]] | ||
142 | then | ||
143 | print_status success | ||
144 | else | ||
145 | print_status failure | ||
146 | fi | ||
147 | |||
148 | return ${error_value} | ||
149 | } | ||
150 | |||
151 | print_status() | ||
152 | { | ||
153 | if [ $# = 0 ] | ||
154 | then | ||
155 | echo "Usage: $0 {success|warning|failure}" | ||
156 | return 1 | ||
157 | fi | ||
158 | |||
159 | $CURS_UP | ||
160 | |||
161 | case "$1" in | ||
162 | success) | ||
163 | $SET_COL | ||
164 | echo -e -n $COLBLUE"[ " | ||
165 | $SUCCESS | ||
166 | echo -e -n "OK" | ||
167 | echo -e $COLBLUE" ]" | ||
168 | $NORMAL | ||
169 | ;; | ||
170 | warning) | ||
171 | case "$2" in | ||
172 | running) | ||
173 | $SET_WCOL | ||
174 | echo "Already running" | ||
175 | $CURS_UP | ||
176 | ;; | ||
177 | not_running) | ||
178 | $SET_WCOL | ||
179 | echo "Not running" | ||
180 | $CURS_UP | ||
181 | ;; | ||
182 | esac | ||
183 | $SET_COL | ||
184 | echo -e -n $COLBLUE"[ " | ||
185 | $WARNING | ||
186 | echo -e -n "ATTN" | ||
187 | echo -e $COLBLUE" ]" | ||
188 | $NORMAL | ||
189 | ;; | ||
190 | failure) | ||
191 | $SET_COL | ||
192 | echo -e -n $COLBLUE"[" | ||
193 | $FAILURE | ||
194 | echo -e -n "FAILED" | ||
195 | echo -e $COLBLUE"]" | ||
196 | $NORMAL | ||
197 | ;; | ||
198 | esac | ||
199 | } | ||
200 | |||
201 | getpids() | ||
202 | { | ||
203 | base=${1##*/} | ||
204 | niro | 729 | pidlist=$(pidof -o $$ -o $PPID $base) |
205 | niro | 724 | } |
206 | |||
207 | loadproc() | ||
208 | { | ||
209 | if [ $# = 0 ] | ||
210 | then | ||
211 | echo "Usage: loadproc {program}" | ||
212 | exit 1 | ||
213 | fi | ||
214 | |||
215 | getpids $1 | ||
216 | |||
217 | if [ -z "$pidlist" ] | ||
218 | then | ||
219 | "$@" | ||
220 | evaluate_retval | ||
221 | else | ||
222 | $SET_WCOL | ||
223 | print_status warning running | ||
224 | fi | ||
225 | } | ||
226 | |||
227 | killproc() | ||
228 | { | ||
229 | if [ $# = 0 ] | ||
230 | then | ||
231 | echo "Usage: killproc {program} [signal]" | ||
232 | exit 1 | ||
233 | fi | ||
234 | |||
235 | if [ -z "$2" ]; then | ||
236 | signal=TERM | ||
237 | fallback=KILL | ||
238 | else | ||
239 | signal=${2##-} | ||
240 | signal=${signal##SIG} | ||
241 | fallback="" | ||
242 | fi | ||
243 | |||
244 | getpids $1 | ||
245 | |||
246 | if [ -n "$pidlist" ]; then | ||
247 | failure=0 | ||
248 | |||
249 | for pid in $pidlist | ||
250 | do | ||
251 | kill -$signal $pid 2>/dev/null | ||
252 | |||
253 | for ((i=0; $i<5000; i=$i+1)); do :; done | ||
254 | |||
255 | for ((i=0; $i<$KILLDELAY; i=$i+1)); do | ||
256 | kill -0 $pid 2>/dev/null || break | ||
257 | sleep 1 | ||
258 | done | ||
259 | |||
260 | if [ -n "$fallback" ]; then kill -$fallback $pid 2>/dev/null; fi | ||
261 | |||
262 | kill -0 $pid 2>/dev/null && failure=1 | ||
263 | done | ||
264 | |||
265 | base=${1##*/} | ||
266 | if [ $failure = 0 ]; then rm -f /var/run/$base.pid; fi | ||
267 | |||
268 | (exit $failure) | ||
269 | evaluate_retval | ||
270 | else | ||
271 | $SET_WCOL | ||
272 | print_status warning not_running | ||
273 | fi | ||
274 | } | ||
275 | |||
276 | reloadproc() | ||
277 | { | ||
278 | if [ $# = 0 ] | ||
279 | then | ||
280 | echo "Usage: reloadproc {program} [signal]" | ||
281 | exit 1 | ||
282 | fi | ||
283 | |||
284 | if [ -z "$2" ]; then | ||
285 | signal=HUP | ||
286 | else | ||
287 | signal=${2##-} | ||
288 | signal=${signal##SIG} | ||
289 | |||
290 | fi | ||
291 | |||
292 | getpids $1 | ||
293 | |||
294 | if [ -n "$pidlist" ] | ||
295 | then | ||
296 | failure=0 | ||
297 | |||
298 | for pid in $pidlist | ||
299 | do | ||
300 | kill -$signal $pid || failure=1 | ||
301 | done | ||
302 | |||
303 | (exit $failure) | ||
304 | evaluate_retval | ||
305 | else | ||
306 | $SET_WCOL | ||
307 | print_status warning not_running | ||
308 | fi | ||
309 | } | ||
310 | |||
311 | statusproc() | ||
312 | { | ||
313 | if [ $# = 0 ] | ||
314 | then | ||
315 | echo "Usage: statusproc {program}" | ||
316 | exit 1 | ||
317 | fi | ||
318 | |||
319 | base=${1##*/} | ||
320 | getpids $base | ||
321 | |||
322 | if [ -n "$pidlist" ] | ||
323 | then | ||
324 | echo "$base is running with Process ID(s) $pidlist" | ||
325 | else | ||
326 | if [ -s /var/run/$base.pid ] | ||
327 | then | ||
328 | echo "$1 is not running but /var/run/$base.pid exists" | ||
329 | return 1 | ||
330 | else | ||
331 | echo "$1 is not running" | ||
332 | fi | ||
333 | fi | ||
334 | } | ||
335 | |||
336 | progressbar() | ||
337 | { | ||
338 | if [ $# != 1 ] | ||
339 | then | ||
340 | echo "Usage: progressbar {progress}" | ||
341 | exit 1 | ||
342 | fi | ||
343 | |||
344 | if [ -f /proc/splash ] | ||
345 | then | ||
346 | echo "show $(( 65534 * $1 / 100 ))" > /proc/splash | ||
347 | fi | ||
348 | } | ||
349 | |||
350 | kernel_version() | ||
351 | { | ||
352 | local KV="$(uname -r | cut -d- -f1)" | ||
353 | echo "${KV}" | ||
354 | } | ||
355 | |||
356 | kernel_major_version() | ||
357 | { | ||
358 | local KV | ||
359 | KV="$(uname -r | cut -d. -f1-2)" | ||
360 | echo "${KV}" | ||
361 | } | ||
362 | |||
363 | dolisting() | ||
364 | { | ||
365 | local x= | ||
366 | local y= | ||
367 | local tmpstr= | ||
368 | local mylist= | ||
369 | local mypath="${*}" | ||
370 | |||
371 | if [ "${mypath%/\*}" != "${mypath}" ] | ||
372 | then | ||
373 | mypath="${mypath%/\*}" | ||
374 | fi | ||
375 | |||
376 | for x in ${mypath} | ||
377 | do | ||
378 | [ ! -e "${x}" ] && continue | ||
379 | |||
380 | if [ ! -d "${x}" ] && ( [ -L "${x}" -o -f "${x}" ] ) | ||
381 | then | ||
382 | mylist="${mylist} $(ls "${x}" 2> /dev/null)" | ||
383 | else | ||
384 | [ "${x%/}" != "${x}" ] && x="${x%/}" | ||
385 | |||
386 | cd "${x}"; tmpstr="$(ls)" | ||
387 | |||
388 | for y in ${tmpstr} | ||
389 | do | ||
390 | mylist="${mylist} ${x}/${y}" | ||
391 | done | ||
392 | fi | ||
393 | done | ||
394 | |||
395 | echo "${mylist}" | ||
396 | } | ||
397 | |||
398 | # searches /proc/mounts for mounted fstypes (like ext3) | ||
399 | is_fstype_mounted() | ||
400 | { | ||
401 | local filesys | ||
402 | local i | ||
403 | filesys=$1 | ||
404 | |||
405 | i="$(cat /proc/mounts | grep ${filesys} | cut -d ' ' -f3)" | ||
406 | [[ ${i} != ${filesys} ]] && return 1 | ||
407 | |||
408 | return 0 | ||
409 | } | ||
410 | |||
411 | # searches /proc/mounts for mounted fs names (like udev, proc) | ||
412 | is_fs_mounted() | ||
413 | { | ||
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 | { | ||
427 | local filesys | ||
428 | local i | ||
429 | filesys=$1 | ||
430 | |||
431 | i="$(cat /proc/filesystems | grep ${filesys} | cut -d $'\t' -f2)" | ||
432 | [[ ${i} != ${filesys} ]] && return 1 | ||
433 | |||
434 | return 0 | ||
435 | } | ||
436 | |||
437 | # bool is_older_than(reference, files/dirs to check) | ||
438 | # | ||
439 | # return 0 if any of the files/dirs are newer than | ||
440 | # the reference file | ||
441 | # | ||
442 | # EXAMPLE: if is_older_than a.out *.o ; then ... | ||
443 | is_older_than() | ||
444 | { | ||
445 | local x= | ||
446 | local ref="$1" | ||
447 | shift | ||
448 | |||
449 | for x in "$@" | ||
450 | do | ||
451 | [[ ${x} -nt ${ref} ]] && return 0 | ||
452 | |||
453 | if [[ -d ${x} ]] | ||
454 | then | ||
455 | is_older_than "${ref}" "${x}"/* && return 0 | ||
456 | fi | ||
457 | done | ||
458 | |||
459 | return 1 | ||
460 | } |