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