fixes for common config functions

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

diff --git a/package/base-files/default/etc/functions.sh b/package/base-files/default/etc/functions.sh
index 526ca52..e87515d 100755 (executable)
--- a/package/base-files/default/etc/functions.sh
+++ b/package/base-files/default/etc/functions.sh
@@ -1,6 +1,12 @@
 #!/bin/sh
 alias debug=${DEBUG:-:}
 
+# newline
+N="
+"
+
+_C=0
+
 # valid interface?
 if_valid () (
   ifconfig "$1" >&- 2>&- ||
@@ -11,3 +17,74 @@ if_valid () (
 hotplug_dev() {
        env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
 }
+
+append() {
+       local var="$1"
+       local value="$2"
+       local sep="${3:- }"
+       eval "export ${var}=\"\${${var}:+\${${var}}${value:+$sep}}$value\""
+}
+
+reset_cb() {
+       config_cb() {
+               return 0
+       }
+       option_cb() {
+               return 0
+       }
+}
+reset_cb
+
+config () {
+       local type="$1"
+       local name="$2"
+       _C=$(($_C + 1))
+       name="${name:-cfg${_C}}"
+       config_cb "$type" "$name"
+       export CONFIG_SECTION="$name"
+       export CONFIG_${CONFIG_SECTION}_TYPE="$type"
+}
+
+option () {
+       local varname="$1" ; shift
+       export CONFIG_${CONFIG_SECTION}_${varname}="$*"
+       option_cb "$varname" "$*"
+}
+
+config_clear() {
+       [ -z "$CONFIG_SECTION" ] && return
+       for oldsetting in `set | grep ^CONFIG_${CONFIG_SECTION}_ | \
+               sed -e 's/\(.*\)=.*$/\1/'` ; do 
+               unset $oldsetting 
+       done
+       unset CONFIG_SECTION
+}
+
+config_load() {
+       local DIR="./"
+       _C=0
+       [ \! -e "$1" -a -e "/etc/config/$1" ] && {
+               DIR="/etc/config/"
+       }
+       [ -e "$DIR$1" ] && {
+               CONFIG_FILENAME="$DIR$1"
+               . ${CONFIG_FILENAME}
+       } || return 1
+       ${CD:+cd -} >/dev/null
+       ${CONFIG_SECTION:+config_cb}
+}
+
+config_get() {
+       case "$3" in
+               "") eval "echo \${CONFIG_${1}_${2}}";;
+               *) eval "$1=\"\${CONFIG_${2}_${3}}\"";;
+       esac
+}
+
+config_set() {
+       export CONFIG_${1}_${2}="${3}"
+}
+
+load_modules() {
+       sed 's/^[^#]/insmod &/' $* | ash 2>&- || :
+}