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Diffstat (limited to 'package/base-files/files/lib/functions.sh')
| -rwxr-xr-x | package/base-files/files/lib/functions.sh | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh new file mode 100755 index 000000000..b3a3885f2 --- /dev/null +++ b/package/base-files/files/lib/functions.sh @@ -0,0 +1,340 @@ +#!/bin/sh +# Copyright (C) 2006-2011 OpenWrt.org +# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de> + + +debug () { + ${DEBUG:-:} "$@" +} +mount() { + busybox mount "$@" +} + +# newline +N=" +" + +_C=0 +NO_EXPORT=1 +LOAD_STATE=1 +LIST_SEP=" " + +hotplug_dev() { + env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug-call net +} + +append() { + local var="$1" + local value="$2" + local sep="${3:- }" + + eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\"" +} + +list_contains() { + local var="$1" + local str="$2" + local val + + eval "val=\" \${$var} \"" + [ "${val%% $str *}" != "$val" ] +} + +list_remove() { + local var="$1" + local remove="$2" + local val + + eval "val=\" \${$var} \"" + val1="${val%% $remove *}" + [ "$val1" = "$val" ] && return + val2="${val##* $remove }" + [ "$val2" = "$val" ] && return + val="${val1## } ${val2%% }" + val="${val%% }" + eval "export ${NO_EXPORT:+-n} -- \"$var=\$val\"" +} + +config_load() { + [ -n "$IPKG_INSTROOT" ] && return 0 + uci_load "$@" +} + +reset_cb() { + config_cb() { return 0; } + option_cb() { return 0; } + list_cb() { return 0; } +} +reset_cb + +package() { + return 0 +} + +config () { + local cfgtype="$1" + local name="$2" + + export ${NO_EXPORT:+-n} CONFIG_NUM_SECTIONS=$(($CONFIG_NUM_SECTIONS + 1)) + name="${name:-cfg$CONFIG_NUM_SECTIONS}" + append CONFIG_SECTIONS "$name" + [ -n "$NO_CALLBACK" ] || config_cb "$cfgtype" "$name" + export ${NO_EXPORT:+-n} CONFIG_SECTION="$name" + export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_TYPE=$cfgtype" +} + +option () { + local varname="$1"; shift + local value="$*" + + export ${NO_EXPORT:+-n} "CONFIG_${CONFIG_SECTION}_${varname}=$value" + [ -n "$NO_CALLBACK" ] || option_cb "$varname" "$*" +} + +list() { + local varname="$1"; shift + local value="$*" + local len + + config_get len "$CONFIG_SECTION" "${varname}_LENGTH" 0 + [ $len = 0 ] && append CONFIG_LIST_STATE "${CONFIG_SECTION}_${varname}" + len=$(($len + 1)) + config_set "$CONFIG_SECTION" "${varname}_ITEM$len" "$value" + config_set "$CONFIG_SECTION" "${varname}_LENGTH" "$len" + append "CONFIG_${CONFIG_SECTION}_${varname}" "$value" "$LIST_SEP" + list_cb "$varname" "$*" +} + +config_rename() { + local OLD="$1" + local NEW="$2" + local oldvar + local newvar + + [ -n "$OLD" -a -n "$NEW" ] || return + for oldvar in `set | grep ^CONFIG_${OLD}_ | \ + sed -e 's/\(.*\)=.*$/\1/'` ; do + newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}" + eval "export ${NO_EXPORT:+-n} \"$newvar=\${$oldvar}\"" + unset "$oldvar" + done + export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , $NEW ,")" + + [ "$CONFIG_SECTION" = "$OLD" ] && export ${NO_EXPORT:+-n} CONFIG_SECTION="$NEW" +} + +config_unset() { + config_set "$1" "$2" "" +} + +config_clear() { + local SECTION="$1" + local oldvar + + list_remove CONFIG_SECTIONS "$SECTION" + export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}" + + for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \ + sed -e 's/\(.*\)=.*$/\1/'` ; do + unset $oldvar + done +} + +# config_get <variable> <section> <option> [<default>] +# config_get <section> <option> +config_get() { + case "$3" in + "") eval echo "\${CONFIG_${1}_${2}:-\${4}}";; + *) eval export ${NO_EXPORT:+-n} -- "${1}=\${CONFIG_${2}_${3}:-\${4}}";; + esac +} + +# config_get_bool <variable> <section> <option> [<default>] +config_get_bool() { + local _tmp + config_get _tmp "$2" "$3" "$4" + case "$_tmp" in + 1|on|true|enabled) _tmp=1;; + 0|off|false|disabled) _tmp=0;; + *) _tmp="$4";; + esac + export ${NO_EXPORT:+-n} "$1=$_tmp" +} + +config_set() { + local section="$1" + local option="$2" + local value="$3" + local old_section="$CONFIG_SECTION" + + CONFIG_SECTION="$section" + option "$option" "$value" + CONFIG_SECTION="$old_section" +} + +config_foreach() { + local ___function="$1" + [ "$#" -ge 1 ] && shift + local ___type="$1" + [ "$#" -ge 1 ] && shift + local section cfgtype + + [ -z "$CONFIG_SECTIONS" ] && return 0 + for section in ${CONFIG_SECTIONS}; do + config_get cfgtype "$section" TYPE + [ -n "$___type" -a "x$cfgtype" != "x$___type" ] && continue + eval "$___function \"\$section\" \"\$@\"" + done +} + +config_list_foreach() { + [ "$#" -ge 3 ] || return 0 + local section="$1"; shift + local option="$1"; shift + local function="$1"; shift + local val + local len + local c=1 + + config_get len "${section}" "${option}_LENGTH" + [ -z "$len" ] && return 0 + while [ $c -le "$len" ]; do + config_get val "${section}" "${option}_ITEM$c" + eval "$function \"\$val\" \"$@\"" + c="$(($c + 1))" + done +} + +load_modules() { + [ -d /etc/modules.d ] && { + cd /etc/modules.d + sed 's/^[^#]/insmod &/' $* | ash 2>&- || : + } +} + +include() { + local file + + for file in $(ls $1/*.sh 2>/dev/null); do + . $file + done +} + +find_mtd_part() { + local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')" + local PREFIX=/dev/mtdblock + + PART="${PART##mtd}" + [ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/ + echo "${PART:+$PREFIX$PART}" +} + +strtok() { # <string> { <variable> [<separator>] ... } + local tmp + local val="$1" + local count=0 + + shift + + while [ $# -gt 1 ]; do + tmp="${val%%$2*}" + + [ "$tmp" = "$val" ] && break + + val="${val#$tmp$2}" + + export ${NO_EXPORT:+-n} "$1=$tmp"; count=$((count+1)) + shift 2 + done + + if [ $# -gt 0 -a -n "$val" ]; then + export ${NO_EXPORT:+-n} "$1=$val"; count=$((count+1)) + fi + + return $count +} + + +jffs2_mark_erase() { + local part="$(find_mtd_part "$1")" + [ -z "$part" ] && { + echo Partition not found. + return 1 + } + echo -e "\xde\xad\xc0\xde" | mtd -qq write - "$1" +} + +uci_apply_defaults() { + cd /etc/uci-defaults || return 0 + files="$(ls)" + [ -z "$files" ] && return 0 + mkdir -p /tmp/.uci + for file in $files; do + ( . "./$(basename $file)" ) && rm -f "$file" + done + uci commit +} + +group_add() { + local name="$1" + local gid="$2" + local rc + [ -f "${IPKG_INSTROOT}/etc/group" ] || return 1 + [ -n "$IPKG_INSTROOT" ] || lock /var/lock/group + echo "${name}:x:${gid}:" >> ${IPKG_INSTROOT}/etc/group + rc=$? + [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/group + return $rc +} + +group_exists() { + grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/group +} + +user_add() { + local name="${1}" + local uid="${2}" + local gid="${3:-$2}" + local desc="${4:-$1}" + local home="${5:-/var/run/$1}" + local shell="${6:-/bin/false}" + local rc + [ -f "${IPKG_INSTROOT}/etc/passwd" ] || return 1 + [ -n "$IPKG_INSTROOT" ] || lock /var/lock/passwd + echo "${name}:x:${uid}:${gid}:${desc}:${home}:${shell}" >> ${IPKG_INSTROOT}/etc/passwd + echo "${name}:x:0:0:99999:7:::" >> ${IPKG_INSTROOT}/etc/shadow + rc=$? + [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/passwd + return $rc +} + +user_exists() { + grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/passwd +} + + +pi_include() { + if [ -f "/tmp/overlay/$1" ]; then + . "/tmp/overlay/$1" + elif [ -f "$1" ]; then + . "$1" + elif [ -d "/tmp/overlay/$1" ]; then + if [ -n "$(ls /tmp/overlay/$1/*.sh 2>/dev/null)" ]; then + for src_script in /tmp/overlay/$1/*.sh; do + . "$src_script" + done + fi + elif [ -d "$1" ]; then + if [ -n "$(ls $1/*.sh 2>/dev/null)" ]; then + for src_script in $1/*.sh; do + . "$src_script" + done + fi + else + echo "WARNING: $1 not found" + return 1 + fi + return 0 +} + +[ -z "$IPKG_INSTROOT" -a -f /lib/config/uci.sh ] && . /lib/config/uci.sh |