make find_mtd_part work without devfs

[openwrt.git] / package / base-files / files / etc / functions.sh

diff --git a/package/base-files/files/etc/functions.sh b/package/base-files/files/etc/functions.sh
index 0f3618e..c29ae77 100755 (executable)
--- a/package/base-files/files/etc/functions.sh
+++ b/package/base-files/files/etc/functions.sh
@@ -9,6 +9,7 @@ N="
 "
 
 _C=0
+NO_EXPORT=1
 
 hotplug_dev() {
        env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
@@ -19,7 +20,7 @@ append() {
        local value="$2"
        local sep="${3:- }"
        
-       eval "export -n -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
+       eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
 }
 
 reset_cb() {
@@ -31,19 +32,20 @@ reset_cb
 config () {
        local cfgtype="$1"
        local name="$2"
-    
-       _C=$((_C + 1))
-       name="${name:-cfg${_C}}"
+       
+       export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
+       name="${name:-cfg$CONFIG_NUM_SECTIONS}"
+       append CONFIG_SECTIONS "$name"
        config_cb "$cfgtype" "$name"
-       CONFIG_SECTION="$name"
-       export -n "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
+       export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
+       export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
 }
 
 option () {
        local varname="$1"; shift
        local value="$*"
        
-       export -n "CONFIG_${CONFIG_SECTION}_${varname}=$value"
+       export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
        option_cb "$varname" "$*"
 }
 
@@ -57,11 +59,12 @@ config_rename() {
        for oldvar in `set | grep ^CONFIG_${OLD}_ | \
                sed -e 's/\(.*\)=.*$/\1/'` ; do
                newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}"
-               eval "export -n \"$newvar=\${$oldvar}\""
+               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" ] && CONFIG_SECTION="$NEW"
+       [ "$CONFIG_SECTION" = "$OLD" ] && export ${NO_EXPORT:+-n} CONFIG_SECTION="$NEW"
 }
 
 config_unset() {
@@ -72,16 +75,21 @@ config_clear() {
        local SECTION="$1"
        local oldvar
        
-       for oldvar in `set | grep ^CONFIG_${SECTION}_ | \
+       export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , ,")"
+       export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
+
+       for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \
                sed -e 's/\(.*\)=.*$/\1/'` ; do 
                unset $oldvar 
        done
 }
 
 config_load() {
-       local file="/etc/config/$1"
+       local file="$UCI_ROOT/etc/config/$1"
        _C=0
-       CONFIG_SECTION=
+       export ${NO_EXPORT:+-n} CONFIG_SECTIONS=
+       export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=0
+       export ${NO_EXPORT:+-n} CONFIG_SECTION=
        
        [ -e "$file" ] && {
                . $file
@@ -93,7 +101,18 @@ config_load() {
 config_get() {
        case "$3" in
                "") eval "echo \"\${CONFIG_${1}_${2}}\"";;
-               *)  eval "export -n -- \"$1=\${CONFIG_${2}_${3}}\"";;
+               *)  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
 }
 
@@ -101,7 +120,20 @@ config_set() {
        local section="$1"
        local option="$2"
        local value="$3"
-       export -n "CONFIG_${section}_${option}=$value"
+       export ${NO_EXPORT:+-n} "CONFIG_${section}_${option}=$value"
+}
+
+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() {
@@ -119,9 +151,11 @@ include() {
 
 find_mtd_part() {
        local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
+       local PREFIX=/dev/mtdblock
        
        PART="${PART##mtd}"
-       echo "${PART:+/dev/mtdblock/$PART}"
+       [ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/
+       echo "${PART:+$PREFIX$PART}"
 }
 
 strtok() { # <string> { <variable> [<separator>] ... }
@@ -138,12 +172,12 @@ strtok() { # <string> { <variable> [<separator>] ... }
 
                val="${val#$tmp$2}"
 
-               export -n "$1=$tmp"; count=$((count+1))
+               export ${NO_EXPORT:+-n} "$1=$tmp"; count=$((count+1))
                shift 2
        done
 
        if [ $# -gt 0 -a "$val" ]; then
-               export -n "$1=$val"; count=$((count+1))
+               export ${NO_EXPORT:+-n} "$1=$val"; count=$((count+1))
        fi
 
        return $count