Contents of /tags/busybox-init-0_1_12/rc/functions
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Wed Dec 15 17:44:36 2010 UTC (13 years, 9 months ago) by niro
Original Path: trunk/busybox-initscripts/rc/functions
File size: 7443 byte(s)
Wed Dec 15 17:44:36 2010 UTC (13 years, 9 months ago) by niro
Original Path: trunk/busybox-initscripts/rc/functions
File size: 7443 byte(s)
-added rc_print() and rc_echo() functions and replaced all corresponding echos with them -added bootsplash support and initialize splash -mount.rc: record mdev as mounted - equivalent to udev -mount.rc: added devtmpfs to NO_FS -rc-config: added mdev to RC_EXCLUDE -removed udev.rc, should be installed with udev itself
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 | |
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 $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 | { |
403 | local filesys |
404 | local i |
405 | filesys=$1 |
406 | |
407 | i="$(cat /proc/mounts | grep ${filesys} | cut -d ' ' -f3)" |
408 | [[ ${i} != ${filesys} ]] && return 1 |
409 | |
410 | return 0 |
411 | } |
412 | |
413 | # searches /proc/mounts for mounted fs names (like udev, proc) |
414 | is_fs_mounted() |
415 | { |
416 | local filesys |
417 | local i |
418 | filesys=$1 |
419 | |
420 | i="$(cat /proc/mounts | grep ${filesys} | cut -d ' ' -f1)" |
421 | [[ ${i} != ${filesys} ]] && return 1 |
422 | |
423 | return 0 |
424 | } |
425 | |
426 | # checks if kernel supports fs xy |
427 | kernel_supports_fs() |
428 | { |
429 | local filesys |
430 | local i |
431 | filesys=$1 |
432 | |
433 | i="$(cat /proc/filesystems | grep ${filesys} | cut -d $'\t' -f2)" |
434 | [[ ${i} != ${filesys} ]] && return 1 |
435 | |
436 | return 0 |
437 | } |
438 | |
439 | # bool is_older_than(reference, files/dirs to check) |
440 | # |
441 | # return 0 if any of the files/dirs are newer than |
442 | # the reference file |
443 | # |
444 | # EXAMPLE: if is_older_than a.out *.o ; then ... |
445 | is_older_than() |
446 | { |
447 | local x= |
448 | local ref="$1" |
449 | shift |
450 | |
451 | for x in "$@" |
452 | do |
453 | [[ ${x} -nt ${ref} ]] && return 0 |
454 | |
455 | if [[ -d ${x} ]] |
456 | then |
457 | is_older_than "${ref}" "${x}"/* && return 0 |
458 | fi |
459 | done |
460 | |
461 | return 1 |
462 | } |