e4b3badb4629af874820f268f350e827616b17b8
[openwrt/svn-archive/archive.git] / package / base-files / files / lib / functions.sh
1 #!/bin/sh
2 # Copyright (C) 2006 OpenWrt.org
3 # Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
4
5
6 debug () {
7 ${DEBUG:-:} "$@"
8 }
9 mount() {
10 busybox mount "$@"
11 }
12
13 # newline
14 N="
15 "
16
17 _C=0
18 NO_EXPORT=1
19 LOAD_STATE=1
20 LIST_SEP=" "
21
22 hotplug_dev() {
23 env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug-call net
24 }
25
26 append() {
27 local var="$1"
28 local value="$2"
29 local sep="${3:- }"
30
31 eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
32 }
33
34 list_contains() {
35 local var="$1"
36 local str="$2"
37 local val
38
39 eval "val=\" \${$var} \""
40 [ "${val%% $str *}" != "$val" ]
41 }
42
43 list_remove() {
44 local var="$1"
45 local remove="$2"
46 local val
47
48 eval "val=\" \${$var} \""
49 val1="${val%% $remove *}"
50 [ "$val1" = "$val" ] && return
51 val2="${val##* $remove }"
52 [ "$val2" = "$val" ] && return
53 val="${val1## } ${val2%% }"
54 val="${val%% }"
55 eval "export ${NO_EXPORT:+-n} -- \"$var=\$val\""
56 }
57
58 config_load() {
59 [ -n "$IPKG_INSTROOT" ] && return 0
60 uci_load "$@"
61 }
62
63 reset_cb() {
64 config_cb() { return 0; }
65 option_cb() { return 0; }
66 list_cb() { return 0; }
67 }
68 reset_cb
69
70 package() {
71 return 0
72 }
73
74 config () {
75 local cfgtype="$1"
76 local name="$2"
77
78 export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
79 name="${name:-cfg$CONFIG_NUM_SECTIONS}"
80 append CONFIG_SECTIONS "$name"
81 [ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name"
82 export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
83 export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
84 }
85
86 option () {
87 local varname="$1"; shift
88 local value="$*"
89
90 export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
91 [ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*"
92 }
93
94 list() {
95 local varname="$1"; shift
96 local value="$*"
97 local len
98
99 config_get len "$CONFIG_SECTION" "${varname}_LENGTH" 0
100 [ $len = 0 ] && append CONFIG_LIST_STATE "${CONFIG_SECTION}_${varname}"
101 len=$(($len + 1))
102 config_set "$CONFIG_SECTION" "${varname}_ITEM$len" "$value"
103 config_set "$CONFIG_SECTION" "${varname}_LENGTH" "$len"
104 append "CONFIG_${CONFIG_SECTION}_${varname}" "$value" "$LIST_SEP"
105 list_cb "$varname" "$*"
106 }
107
108 config_rename() {
109 local OLD="$1"
110 local NEW="$2"
111 local oldvar
112 local newvar
113
114 [ -n "$OLD" -a -n "$NEW" ] || return
115 for oldvar in `set | grep ^CONFIG_${OLD}_ | \
116 sed -e 's/\(.*\)=.*$/\1/'` ; do
117 newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}"
118 eval "export ${NO_EXPORT:+-n} \"$newvar=\${$oldvar}\""
119 unset "$oldvar"
120 done
121 export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , $NEW ,")"
122
123 [ "$CONFIG_SECTION" = "$OLD" ] && export ${NO_EXPORT:+-n} CONFIG_SECTION="$NEW"
124 }
125
126 config_unset() {
127 config_set "$1" "$2" ""
128 }
129
130 config_clear() {
131 local SECTION="$1"
132 local oldvar
133
134 list_remove CONFIG_SECTIONS "$SECTION"
135 export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
136
137 for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \
138 sed -e 's/\(.*\)=.*$/\1/'` ; do
139 unset $oldvar
140 done
141 }
142
143 # config_get <variable> <section> <option> [<default>]
144 # config_get <section> <option>
145 config_get() {
146 case "$3" in
147 "") eval echo "\${CONFIG_${1}_${2}:-\${4}}";;
148 *) eval export ${NO_EXPORT:+-n} -- "${1}=\${CONFIG_${2}_${3}:-\${4}}";;
149 esac
150 }
151
152 # config_get_bool <variable> <section> <option> [<default>]
153 config_get_bool() {
154 local _tmp
155 config_get _tmp "$2" "$3" "$4"
156 case "$_tmp" in
157 1|on|true|enabled) _tmp=1;;
158 0|off|false|disabled) _tmp=0;;
159 *) _tmp="$4";;
160 esac
161 export ${NO_EXPORT:+-n} "$1=$_tmp"
162 }
163
164 config_set() {
165 local section="$1"
166 local option="$2"
167 local value="$3"
168 local old_section="$CONFIG_SECTION"
169
170 CONFIG_SECTION="$section"
171 option "$option" "$value"
172 CONFIG_SECTION="$old_section"
173 }
174
175 config_foreach() {
176 local function="$1"
177 [ "$#" -ge 1 ] && shift
178 local type="$1"
179 [ "$#" -ge 1 ] && shift
180 local section cfgtype
181
182 [ -z "$CONFIG_SECTIONS" ] && return 0
183 for section in ${CONFIG_SECTIONS}; do
184 config_get cfgtype "$section" TYPE
185 [ -n "$type" -a "x$cfgtype" != "x$type" ] && continue
186 eval "$function \"\$section\" \"\$@\""
187 done
188 }
189
190 config_list_foreach() {
191 [ "$#" -ge 3 ] || return 0
192 local section="$1"; shift
193 local option="$1"; shift
194 local function="$1"; shift
195 local val
196 local len
197 local c=1
198
199 config_get len "${section}" "${option}_LENGTH"
200 [ -z "$len" ] && return 0
201 while [ $c -le "$len" ]; do
202 config_get val "${section}" "${option}_ITEM$c"
203 eval "$function \"\$val\" \"$@\""
204 c="$(($c + 1))"
205 done
206 }
207
208 load_modules() {
209 [ -d /etc/modules.d ] && {
210 cd /etc/modules.d
211 sed 's/^[^#]/insmod &/' $* | ash 2>&- || :
212 }
213 }
214
215 include() {
216 local file
217
218 for file in $(ls $1/*.sh 2>/dev/null); do
219 . $file
220 done
221 }
222
223 find_mtd_part() {
224 local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
225 local PREFIX=/dev/mtdblock
226
227 PART="${PART##mtd}"
228 [ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/
229 echo "${PART:+$PREFIX$PART}"
230 }
231
232 strtok() { # <string> { <variable> [<separator>] ... }
233 local tmp
234 local val="$1"
235 local count=0
236
237 shift
238
239 while [ $# -gt 1 ]; do
240 tmp="${val%%$2*}"
241
242 [ "$tmp" = "$val" ] && break
243
244 val="${val#$tmp$2}"
245
246 export ${NO_EXPORT:+-n} "$1=$tmp"; count=$((count+1))
247 shift 2
248 done
249
250 if [ $# -gt 0 -a -n "$val" ]; then
251 export ${NO_EXPORT:+-n} "$1=$val"; count=$((count+1))
252 fi
253
254 return $count
255 }
256
257
258 jffs2_mark_erase() {
259 local part="$(find_mtd_part "$1")"
260 [ -z "$part" ] && {
261 echo Partition not found.
262 return 1
263 }
264 echo -e "\xde\xad\xc0\xde" | mtd -qq write - "$1"
265 }
266
267 uci_apply_defaults() {
268 cd /etc/uci-defaults || return 0
269 files="$(ls)"
270 [ -z "$files" ] && return 0
271 mkdir -p /tmp/.uci
272 for file in $files; do
273 ( . "./$(basename $file)" ) && rm -f "$file"
274 done
275 uci commit
276 }
277
278 service_kill() {
279 local name="${1}"
280 local pid="${2:-$(pidof "$name")}"
281 local grace="${3:-5}"
282
283 [ -f "$pid" ] && pid="$(head -n1 "$pid" 2>/dev/null)"
284
285 for pid in $pid; do
286 [ -d "/proc/$pid" ] || continue
287 local try=0
288 kill -TERM $pid 2>/dev/null && \
289 while grep -qs "$name" "/proc/$pid/cmdline" && [ $((try++)) -lt $grace ]; do sleep 1; done
290 kill -KILL $pid 2>/dev/null && \
291 while grep -qs "$name" "/proc/$pid/cmdline"; do sleep 1; done
292 done
293 }
294
295
296 pi_include() {
297 if [ -f "/tmp/overlay/$1" ]; then
298 . "/tmp/overlay/$1"
299 elif [ -f "$1" ]; then
300 . "$1"
301 elif [ -d "/tmp/overlay/$1" ]; then
302 if [ -n "$(ls /tmp/overlay/$1/*.sh 2>/dev/null)" ]; then
303 for src_script in /tmp/overlay/$1/*.sh; do
304 . "$src_script"
305 done
306 fi
307 elif [ -d "$1" ]; then
308 if [ -n "$(ls $1/*.sh 2>/dev/null)" ]; then
309 for src_script in $1/*.sh; do
310 . "$src_script"
311 done
312 fi
313 else
314 echo "WARNING: $1 not found"
315 return 1
316 fi
317 return 0
318 }
319
320 [ -z "$IPKG_INSTROOT" -a -f /lib/config/uci.sh ] && . /lib/config/uci.sh