From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001
From: James <>
Date: Wed, 4 Nov 2015 11:49:21 +0000
Subject: trunk-47381

---
 package/base-files/files/lib/functions.sh | 325 ++++++++++++++++++++++++++++++
 1 file changed, 325 insertions(+)
 create mode 100755 package/base-files/files/lib/functions.sh

(limited to 'package/base-files/files/lib/functions.sh')

diff --git a/package/base-files/files/lib/functions.sh b/package/base-files/files/lib/functions.sh
new file mode 100755
index 0000000..dde1ac4
--- /dev/null
+++ b/package/base-files/files/lib/functions.sh
@@ -0,0 +1,325 @@
+#!/bin/sh
+# Copyright (C) 2006-2014 OpenWrt.org
+# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
+# Copyright (C) 2010 Vertical Communications
+
+
+debug () {
+	${DEBUG:-:} "$@"
+}
+
+# newline
+N="
+"
+
+_C=0
+NO_EXPORT=1
+LOAD_STATE=1
+LIST_SEP=" "
+
+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" ]
+}
+
+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_unset() {
+	config_set "$1" "$2" ""
+}
+
+# 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|yes|enabled) _tmp=1;;
+		0|off|false|no|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
+}
+
+insert_modules() {
+	for m in $*; do
+		if [ -f /etc/modules.d/$m ]; then
+			sed 's/^[^#]/insmod &/' /etc/modules.d/$m | ash 2>&- || :
+		else
+			modprobe $m
+		fi
+	done
+}
+
+default_prerm() {
+	local name
+	name=$(basename ${1%.*})
+	[ -f /usr/lib/opkg/info/${name}.prerm-pkg ] && . /usr/lib/opkg/info/${name}.prerm-pkg
+	for i in `cat /usr/lib/opkg/info/${name}.list | grep "^/etc/init.d/"`; do
+		$i disable
+		$i stop
+	done
+}
+
+default_postinst() {
+	local root="${IPKG_INSTROOT}"
+	local pkgname="$(basename ${1%.*})"
+	local rusers="$(sed -ne 's/^Require-User: *//p' $root/usr/lib/opkg/info/${pkgname}.control 2>/dev/null)"
+	local ret=0
+
+	if [ -n "$rusers" ]; then
+		local tuple oIFS="$IFS"
+		for tuple in $rusers; do
+			local uid gid uname gname
+
+			IFS=":"
+			set -- $tuple; uname="$1"; gname="$2"
+			IFS="="
+			set -- $uname; uname="$1"; uid="$2"
+			set -- $gname; gname="$1"; gid="$2"
+			IFS="$oIFS"
+
+			if [ -n "$gname" ] && [ -n "$gid" ]; then
+				group_exists "$gname" || group_add "$gname" "$gid"
+			elif [ -n "$gname" ]; then
+				group_add_next "$gname"; gid=$?
+			fi
+
+			if [ -n "$uname" ]; then
+				user_exists "$uname" || user_add "$uname" "$uid" "$gid"
+			fi
+
+			if [ -n "$uname" ] && [ -n "$gname" ]; then
+				group_add_user "$gname" "$uname"
+			fi
+
+			unset uid gid uname gname
+		done
+	fi
+
+	if [ -f "$root/usr/lib/opkg/info/${pkgname}.postinst-pkg" ]; then
+		( . "$root/usr/lib/opkg/info/${pkgname}.postinst-pkg" )
+		ret=$?
+	fi
+
+	[ -n "$root" ] || rm -f /tmp/luci-indexcache 2>/dev/null
+
+	if [ "$PKG_UPGRADE" != "1" ]; then
+		local shell="$(which bash)"
+		for i in $(grep -s "^/etc/init.d/" "$root/usr/lib/opkg/info/${pkgname}.list"); do
+			if [ -n "$root" ]; then
+				${shell:-/bin/sh} "$root/etc/rc.common" "$root$i" enable
+			else
+				"$i" enable
+				"$i" start
+			fi
+		done
+	fi
+
+	return $ret
+}
+
+include() {
+	local file
+
+	for file in $(ls $1/*.sh 2>/dev/null); do
+		. $file
+	done
+}
+
+find_mtd_index() {
+	local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
+	local INDEX="${PART##mtd}"
+
+	echo ${INDEX}
+}
+
+find_mtd_part() {
+	local INDEX=$(find_mtd_index "$1")
+	local PREFIX=/dev/mtdblock
+
+	[ -d /dev/mtdblock ] && PREFIX=/dev/mtdblock/
+	echo "${INDEX:+$PREFIX$INDEX}"
+}
+
+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}:" ${IPKG_INSTROOT}/etc/group
+}
+
+group_add_next() {
+	local gid gids
+	gid=$(grep -s "^${1}:" ${IPKG_INSTROOT}/etc/group | cut -d: -f3)
+	[ -n "$gid" ] && return $gid
+	gids=$(cat ${IPKG_INSTROOT}/etc/group | cut -d: -f3)
+	gid=100
+	while [ -n "$(echo $gids | grep $gid)" ] ; do
+	        gid=$((gid + 1))
+	done
+	group_add $1 $gid
+	return $gid
+}
+
+group_add_user() {
+	local grp delim=","
+	grp=$(grep -s "^${1}:" ${IPKG_INSTROOT}/etc/group)
+	[ -z "$(echo $grp | cut -d: -f4 | grep $2)" ] || return
+	[ -n "$(echo $grp | grep ":$")" ] && delim=""
+	[ -n "$IPKG_INSTROOT" ] || lock /var/lock/passwd
+	sed -i "s/$grp/$grp$delim$2/g" ${IPKG_INSTROOT}/etc/group
+	[ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/passwd
+}
+
+user_add() {
+	local name="${1}"
+	local uid="${2}"
+	local gid="${3}"
+	local desc="${4:-$1}"
+	local home="${5:-/var/run/$1}"
+	local shell="${6:-/bin/false}"
+	local rc
+	[ -z "$uid" ] && {
+		uids=$(cat ${IPKG_INSTROOT}/etc/passwd | cut -d: -f3)
+		uid=100
+		while [ -n "$(echo $uids | grep $uid)" ] ; do
+		        uid=$((uid + 1))
+		done
+	}
+	[ -z "$gid" ] && gid=$uid
+	[ -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}:" ${IPKG_INSTROOT}/etc/passwd
+}
+
+[ -z "$IPKG_INSTROOT" -a -f /lib/config/uci.sh ] && . /lib/config/uci.sh
-- 
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