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