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