net/mac-to-devinfo/files/devinfo-functions.sh

   1 #!/bin/sh
   2 # Shell script compatibility wrappers for /sbin/uci
   3 #
   4 # Copyright (C) 2008  Felix Fietkau <nbd@openwrt.org>
   5 # Copyright (C) 2009  Daniel Dickinson <crazycshore@gmail.com>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15 # General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20
  21 # $UCI and $UCISTATE must be set
  22
  23 CONFIG_APPEND=
  24 _C=0
  25 LOAD_STATE=1
  26 LIST_SEP=" "
  27
  28 config_load() {
  29     local PACKAGE="$1"
  30     local DATA
  31     local RET
  32
  33     _C=0
  34
  35     if [ -z "$CONFIG_APPEND" ]; then
  36         CONFIG_SECTIONS=
  37         CONFIG_NUM_SECTIONS=0
  38         CONFIG_SECTION=
  39     fi
  40     export NO_EXPORT=
  41     DATA="$($UCI -P $UCISTATE -S -n export "$PACKAGE" 2>/dev/null)"
  42         RET="$?"
  43         [ "$RET" != 0 -o -z "$DATA" ] || eval "$DATA"
  44         unset DATA
  45
  46         ${CONFIG_SECTION:+config_cb}
  47         return "$RET"
  48 }
  49
  50 reset_cb() {
  51         config_cb() { return 0; }
  52         option_cb() { return 0; }
  53         list_cb() { return 0; }
  54 }
  55 reset_cb
  56 config () {
  57         local cfgtype="$1"
  58         local name="$2"
  59
  60         CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
  61         name="${name:-cfg$CONFIG_NUM_SECTIONS}"
  62         append CONFIG_SECTIONS "$name"
  63         [ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name"
  64         CONFIG_SECTION="$name"
  65         eval "CONFIG_${CONFIG_SECTION}_TYPE=\"$cfgtype\""
  66 }
  67
  68 option () {
  69         local varname="$1"; shift
  70         local value="$*"
  71
  72         eval "CONFIG_${CONFIG_SECTION}_${varname}=\"$value\""
  73         [ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*"
  74 }
  75
  76 list() {
  77         local varname="$1"; shift
  78         local value="$*"
  79         local len
  80
  81         config_get len "$CONFIG_SECTION" "${varname}_LENGTH"
  82         len="$((${len:-0} + 1))"
  83         config_set "$CONFIG_SECTION" "${varname}_ITEM$len" "$value"
  84         config_set "$CONFIG_SECTION" "${varname}_LENGTH" "$len"
  85         append "CONFIG_${CONFIG_SECTION}_${varname}" "$value" "$LIST_SEP"
  86         list_cb "$varname" "$*"
  87 }
  88
  89 config_get() {
  90         case "$3" in
  91                 "") eval "echo \"\${CONFIG_${1}_${2}}\"";;
  92                 *)  eval "$1=\${CONFIG_${2}_${3}}";;
  93         esac
  94 }
  95
  96 config_foreach() {
  97         local function="$1"
  98         [ "$#" -ge 1 ] && shift
  99         local type="$1"
 100         [ "$#" -ge 1 ] && shift
 101         local section cfgtype
 102
 103         [ -z "$CONFIG_SECTIONS" ] && return 0
 104         for section in ${CONFIG_SECTIONS}; do
 105                 config_get cfgtype "$section" TYPE
 106                 [ -n "$type" -a "x$cfgtype" != "x$type" ] && continue
 107                 $function "$section" "$@"
 108         done
 109 }
 110
 111 package() {
 112         return 0
 113 }
 114
 115 append() {
 116         local var="$1"
 117         local value="$2"
 118         local sep="${3:- }"
 119
 120         eval "$var=\${$var:+\${$var}\${value:+\$sep}}\$value"
 121 }
 122