package/base-files/files/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 NO_EXPORT=1
  13 LOAD_STATE=1
  14
  15 hotplug_dev() {
  16         env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug-call net
  17 }
  18
  19 append() {
  20         local var="$1"
  21         local value="$2"
  22         local sep="${3:- }"
  23
  24         eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
  25 }
  26
  27 list_contains() {
  28         local var="$1"
  29         local str="$2"
  30         local val
  31
  32         eval "val=\" \${$var} \""
  33         [ "${val%% $str *}" != "$val" ]
  34 }
  35
  36 list_remove() {
  37         local var="$1"
  38         local remove="$2"
  39         local val
  40
  41         eval "val=\" \${$var} \""
  42         val1="${val%% $remove *}"
  43         [ "$val1" = "$val" ] && return
  44         val2="${val##* $remove }"
  45         [ "$val2" = "$val" ] && return
  46         val="${val1## } ${val2%% }"
  47         eval "export ${NO_EXPORT:+-n} -- \"$var=\$val\""
  48 }
  49
  50 config_load() {
  51         [ -n "$IPKG_INSTROOT" ] && return 0
  52         uci_load "$@"
  53 }
  54
  55 reset_cb() {
  56         config_cb() { return 0; }
  57         option_cb() { return 0; }
  58 }
  59 reset_cb
  60
  61 package() {
  62         return 0
  63 }
  64
  65 config () {
  66         local cfgtype="$1"
  67         local name="$2"
  68
  69         export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1))
  70         name="${name:-cfg$CONFIG_NUM_SECTIONS}"
  71         append CONFIG_SECTIONS "$name"
  72         [ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name"
  73         export ${NO_EXPORT:+-n} CONFIG_SECTION="$name"
  74         export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype"
  75 }
  76
  77 option () {
  78         local varname="$1"; shift
  79         local value="$*"
  80
  81         export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value"
  82         [ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*"
  83 }
  84
  85 config_rename() {
  86         local OLD="$1"
  87         local NEW="$2"
  88         local oldvar
  89         local newvar
  90
  91         [ -n "$OLD" -a -n "$NEW" ] || return
  92         for oldvar in `set | grep ^CONFIG_${OLD}_ | \
  93                 sed -e 's/\(.*\)=.*$/\1/'` ; do
  94                 newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}"
  95                 eval "export ${NO_EXPORT:+-n} \"$newvar=\${$oldvar}\""
  96                 unset "$oldvar"
  97         done
  98         export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , $NEW ,")"
  99
 100         [ "$CONFIG_SECTION" = "$OLD" ] && export ${NO_EXPORT:+-n} CONFIG_SECTION="$NEW"
 101 }
 102
 103 config_unset() {
 104         config_set "$1" "$2" ""
 105 }
 106
 107 config_clear() {
 108         local SECTION="$1"
 109         local oldvar
 110
 111         export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , ,")"
 112         export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
 113
 114         for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \
 115                 sed -e 's/\(.*\)=.*$/\1/'` ; do
 116                 unset $oldvar
 117         done
 118 }
 119
 120 config_get() {
 121         case "$3" in
 122                 "") eval "echo \"\${CONFIG_${1}_${2}}\"";;
 123                 *)  eval "export ${NO_EXPORT:+-n} -- \"$1=\${CONFIG_${2}_${3}}\"";;
 124         esac
 125 }
 126
 127 # config_get_bool <variable> <section> <option> [<default>]
 128 config_get_bool() {
 129         local _tmp
 130         config_get "_tmp" "$2" "$3"
 131         case "$_tmp" in
 132                 1|on|true|enabled) export ${NO_EXPORT:+-n} "$1=1";;
 133                 0|off|false|disabled) export ${NO_EXPORT:+-n} "$1=0";;
 134                 *) eval "$1=$4";;
 135         esac
 136 }
 137
 138 config_set() {
 139         local section="$1"
 140         local option="$2"
 141         local value="$3"
 142         local old_section="$CONFIG_SECTION"
 143
 144         CONFIG_SECTION="$section"
 145         option "$option" "$value"
 146         CONFIG_SECTION="$old_section"
 147 }
 148
 149 config_foreach() {
 150         local function="$1"
 151         [ "$#" -ge 1 ] && shift
 152         local type="$1"
 153         [ "$#" -ge 1 ] && shift
 154         local section cfgtype
 155
 156         [ -z "$CONFIG_SECTIONS" ] && return 0
 157         for section in ${CONFIG_SECTIONS}; do
 158                 config_get cfgtype "$section" TYPE
 159                 [ -n "$type" -a "x$cfgtype" != "x$type" ] && continue
 160                 eval "$function \"\$section\" \"\$@\""
 161         done
 162 }
 163
 164 load_modules() {
 165         [ -d /etc/modules.d ] && {
 166                 cd /etc/modules.d
 167                 sed 's/^[^#]/insmod &/' $* | ash 2>&- || :
 168         }
 169 }
 170
 171 include() {
 172         local file
 173
 174         for file in $(ls $1/*.sh 2>/dev/null); do
 175                 . $file
 176         done
 177 }
 178
 179 find_mtd_part() {
 180         local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
 181         local PREFIX=/dev/mtdblock
 182
 183         PART="${PART##mtd}"
 184         [ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/
 185         echo "${PART:+$PREFIX$PART}"
 186 }
 187
 188 strtok() { # <string> { <variable> [<separator>] ... }
 189         local tmp
 190         local val="$1"
 191         local count=0
 192
 193         shift
 194
 195         while [ $# -gt 1 ]; do
 196                 tmp="${val%%$2*}"
 197
 198                 [ "$tmp" = "$val" ] && break
 199
 200                 val="${val#$tmp$2}"
 201
 202                 export ${NO_EXPORT:+-n} "$1=$tmp"; count=$((count+1))
 203                 shift 2
 204         done
 205
 206         if [ $# -gt 0 -a -n "$val" ]; then
 207                 export ${NO_EXPORT:+-n} "$1=$val"; count=$((count+1))
 208         fi
 209
 210         return $count
 211 }
 212
 213
 214 jffs2_mark_erase() {
 215         local part="$(find_mtd_part "$1")"
 216         [ -z "$part" ] && {
 217                 echo Partition not found.
 218                 return 1
 219         }
 220         echo -e "\xde\xad\xc0\xde" | mtd -qq write - "$1"
 221 }
 222
 223 uci_apply_defaults() {(
 224         cd /etc/uci-defaults || return 0
 225         files="$(ls)"
 226         [ -z "$files" ] && return 0
 227         mkdir -p /tmp/.uci
 228         for file in $files; do
 229                 ( . "./$(basename $file)" ) && rm -f "$file"
 230         done
 231         uci commit
 232 )}
 233
 234 [ -z "$IPKG_INSTROOT" -a -f /lib/config/uci.sh ] && . /lib/config/uci.sh