revert to using *_ifnames internally, too many problems with firewall, ppp, etc....

[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 e712647..27b0a6d 100755 (executable)
--- a/package/base-files/default/etc/functions.sh
+++ b/package/base-files/default/etc/functions.sh
@@ -1,8 +1,15 @@
 #!/bin/sh
-. /etc/nvram.sh
+# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
 
 alias debug=${DEBUG:-:}
 
+# newline
+N="
+"
+
+_C=0
+
 # valid interface?
 if_valid () (
   ifconfig "$1" >&- 2>&- ||
@@ -14,26 +21,79 @@ hotplug_dev() {
        env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
 }
 
-bitcount () {
-  local c=$1
-  echo $((
-  c=((c>> 1)&0x55555555)+(c&0x55555555),
-  c=((c>> 2)&0x33333333)+(c&0x33333333),
-  c=((c>> 4)&0x0f0f0f0f)+(c&0x0f0f0f0f),
-  c=((c>> 8)&0x00ff00ff)+(c&0x00ff00ff),
-  c=((c>>16)&0x0000ffff)+(c&0x0000ffff)
-  ))
+append() {
+       local var="$1"
+       local value="$2"
+       local sep="${3:- }"
+       eval "export ${var}=\"\${${var}:+\${${var}}${value:+$sep}}$value\""
 }
 
-valid_netmask () {
-  return $((-($1)&~$1))
+reset_cb() {
+       config_cb() {
+               return 0
+       }
+       option_cb() {
+               return 0
+       }
 }
+reset_cb
 
-ip2int () (
-  set $(echo $1 | tr '\.' ' ')
-  echo $(($1<<24|$2<<16|$3<<8|$4))
-)
+config () {
+    local cfgtype="$1"
+    local name="$2"
+    _C=$(($_C + 1))
+    name="${name:-cfg${_C}}"
+    config_cb "$cfgtype" "$name"
+    export CONFIG_SECTION="$name"
+    export CONFIG_${CONFIG_SECTION}_TYPE="$cfgtype"
+}
+
+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>&- || :
+}
 
-int2ip () {
-  echo $(($1>>24&255)).$(($1>>16&255)).$(($1>>8&255)).$(($1&255))
+include() {
+       for file in $(ls /lib/$1/*.sh 2>/dev/null); do
+               . $file
+       done
 }