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 d54a346..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>&- ||
@@ -12,18 +18,31 @@ hotplug_dev() {
        env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
 }
 
-config_cb() {
-       return 0
+append() {
+       local var="$1"
+       local value="$2"
+       local sep="${3:- }"
+       eval "export ${var}=\"\${${var}:+\${${var}}${value:+$sep}}$value\""
 }
-option_cb() {
-       return 0
+
+reset_cb() {
+       config_cb() {
+               return 0
+       }
+       option_cb() {
+               return 0
+       }
 }
+reset_cb
 
 config () {
-       config_cb "$@"
-       _C=$((${_C:-0} + 1))
-       export CONFIG_SECTION="${2:-cfg${_C}}"
-       export CONFIG_${CONFIG_SECTION}_TYPE="$1"
+       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 () {
@@ -42,12 +61,16 @@ config_clear() {
 }
 
 config_load() {
-       local CD=""
-       if [ \! -e "$1" -a -e "/etc/config/$1" ]; then
-               cd /etc/config && local CD=1
-       fi
-       [ -e "$1" ] && . $1
-       ${CD:+cd - >/dev/null}
+       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}
 }