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

   1 #!/bin/sh
   2 # Copyright (C) 2006 OpenWrt.org
   3 # Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
   4
   5 alias debug=${DEBUG:-:}
   6
   7 # newline
   8 N="
   9 "
  10
  11 _C=0
  12
  13 hotplug_dev() {
  14         env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
  15 }
  16
  17 append() {
  18         local var="$1"
  19         local value="$2"
  20         local sep="${3:- }"
  21         eval "export ${var}=\"\${${var}:+\${${var}}${value:+$sep}}\$value\""
  22 }
  23
  24 reset_cb() {
  25         config_cb() {
  26                 return 0
  27         }
  28         option_cb() {
  29                 return 0
  30         }
  31 }
  32 reset_cb
  33
  34 config () {
  35     local cfgtype="$1"
  36     local name="$2"
  37     _C=$(($_C + 1))
  38     name="${name:-cfg${_C}}"
  39     config_cb "$cfgtype" "$name"
  40     export CONFIG_SECTION="$name"
  41     export CONFIG_${CONFIG_SECTION}_TYPE="$cfgtype"
  42 }
  43
  44 option () {
  45         local varname="$1"; shift
  46         export CONFIG_${CONFIG_SECTION}_${varname}="$*"
  47         option_cb "$varname" "$*"
  48 }
  49
  50 config_rename() {
  51         local OLD="$1"
  52         local NEW="$2"
  53         local oldsetting
  54         local newvar
  55
  56         [ -z "$OLD" -o -z "$NEW" ] && return
  57         for oldsetting in `set | grep ^CONFIG_${OLD}_ | \
  58                 sed -e 's/\(.*\)=.*$/\1/'` ; do
  59                 newvar="CONFIG_${NEW}_${oldsetting##CONFIG_${OLD}_}"
  60                 eval "${newvar}=\${$oldsetting}"
  61                 unset "$oldsetting"
  62         done
  63         [ "$CONFIG_SECTION" = "$OLD" ] && CONFIG_SECTION="$NEW"
  64 }
  65
  66 config_unset() {
  67         config_set "$1" "$2" ""
  68 }
  69
  70 config_clear() {
  71         [ -z "$CONFIG_SECTION" ] && return
  72         for oldsetting in `set | grep ^CONFIG_${CONFIG_SECTION}_ | \
  73                 sed -e 's/\(.*\)=.*$/\1/'` ; do
  74                 unset $oldsetting
  75         done
  76         unset CONFIG_SECTION
  77 }
  78
  79 config_load() {
  80         CONFIG_SECTION=
  81         local DIR="./"
  82         _C=0
  83         [ \! -e "$1" -a -e "/etc/config/$1" ] && {
  84                 DIR="/etc/config/"
  85         }
  86         [ -e "$DIR$1" ] && {
  87                 CONFIG_FILENAME="$DIR$1"
  88                 . ${CONFIG_FILENAME}
  89         } || return 1
  90         ${CD:+cd -} >/dev/null
  91         ${CONFIG_SECTION:+config_cb}
  92 }
  93
  94 config_get() {
  95         case "$3" in
  96                 "") eval "echo \"\${CONFIG_${1}_${2}}\"";;
  97                 *) eval "$1=\"\${CONFIG_${2}_${3}}\"";;
  98         esac
  99 }
 100
 101 config_set() {
 102         export CONFIG_${1}_${2}="${3}"
 103 }
 104
 105 load_modules() {
 106         sed 's/^[^#]/insmod &/' $* | ash 2>&- || :
 107 }
 108
 109 include() {
 110         for file in $(ls $1/*.sh 2>/dev/null); do
 111                 . $file
 112         done
 113 }
 114
 115 find_mtd_part() {
 116         local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
 117         PART="${PART##mtd}"
 118         echo "${PART:+/dev/mtdblock/$PART}"
 119 }
 120