openwrtv4/package/base-files/files/etc/functions.sh

199 lines
4 KiB
Bash
Raw Normal View History

#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
alias debug=${DEBUG:-:}
# newline
N="
"
_C=0
NO_EXPORT=1
hotplug_dev() {
env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug-call net
}
append() {
local var="$1"
local value="$2"
local sep="${3:- }"
eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
}
reset_cb() {
config_cb() { return 0; }
option_cb() { return 0; }
}
reset_cb
config () {
local cfgtype="$1"
local name="$2"
export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
name="${name:-cfg$CONFIG_NUM_SECTIONS}"
append CONFIG_SECTIONS "$name"
[ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name"
export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
}
option () {
local varname="$1"; shift
local value="$*"
export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
[ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*"
}
config_rename() {
local OLD="$1"
local NEW="$2"
local oldvar
local newvar
[ "$OLD" -a "$NEW" ] || return
for oldvar in `set | grep ^CONFIG_${OLD}_ | \
sed -e 's/\(.*\)=.*$/\1/'` ; do
newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}"
eval "export ${NO_EXPORT:+-n} \"$newvar=\${$oldvar}\""
unset "$oldvar"
done
export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , $NEW ,")"
[ "$CONFIG_SECTION" = "$OLD" ] && export ${NO_EXPORT:+-n} CONFIG_SECTION="$NEW"
}
config_unset() {
config_set "$1" "$2" ""
}
config_clear() {
local SECTION="$1"
local oldvar
export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , ,")"
export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
2007-01-29 22:07:17 +00:00
for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \
sed -e 's/\(.*\)=.*$/\1/'` ; do
unset $oldvar
done
}
config_load() {
local file="$UCI_ROOT/etc/config/$1"
_C=0
export ${NO_EXPORT:+-n} CONFIG_SECTIONS=
export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=0
export ${NO_EXPORT:+-n} CONFIG_SECTION=
[ -e "$file" ] && {
. $file
} || return 1
${CONFIG_SECTION:+config_cb}
}
config_get() {
case "$3" in
"") eval "echo \"\${CONFIG_${1}_${2}}\"";;
*) eval "export ${NO_EXPORT:+-n} -- \"$1=\${CONFIG_${2}_${3}}\"";;
esac
}
# config_get_bool <variable> <section> <option> [<default>]
config_get_bool() {
local _tmp
config_get "_tmp" "$2" "$3"
case "$_tmp" in
1|on|enabled) export ${NO_EXPORT:+-n} "$1=1";;
0|off|disabled) export ${NO_EXPORT:+-n} "$1=0";;
*) eval "$1=${4:-0}";;
esac
}
config_set() {
local section="$1"
local option="$2"
local value="$3"
local old_section="$CONFIG_SECTION"
CONFIG_SECTION="$section"
option "$option" "$value"
CONFIG_SECTION="$old_section"
}
config_foreach() {
local function="$1"
local type="$2"
local section cfgtype
[ -z "$CONFIG_SECTIONS" ] && return 0
for section in ${CONFIG_SECTIONS}; do
config_get cfgtype "$section" TYPE
[ -n "$type" -a "$cfgtype" != "$type" ] && continue
eval "$function \"\$section\""
done
}
load_modules() {
cd /etc/modules.d
sed 's/^[^#]/insmod &/' $* | ash 2>&- || :
}
include() {
local file
for file in $(ls $1/*.sh 2>/dev/null); do
. $file
done
}
find_mtd_part() {
local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
local PREFIX=/dev/mtdblock
PART="${PART##mtd}"
[ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/
echo "${PART:+$PREFIX$PART}"
}
strtok() { # <string> { <variable> [<separator>] ... }
local tmp
local val="$1"
local count=0
shift
while [ $# -gt 1 ]; do
tmp="${val%%$2*}"
[ "$tmp" = "$val" ] && break
val="${val#$tmp$2}"
export ${NO_EXPORT:+-n} "$1=$tmp"; count=$((count+1))
shift 2
done
if [ $# -gt 0 -a "$val" ]; then
export ${NO_EXPORT:+-n} "$1=$val"; count=$((count+1))
fi
return $count
}
jffs2_mark_erase() {
local part="$(find_mtd_part "$1")"
[ -z "$part" ] && {
echo Partition not found.
return 1
}
echo -e "\xde\xad\xc0\xde" | mtd -qq write - "$1"
}