1 files changed, 79 insertions, 0 deletions
diff --git a/package/base-files/src/etc/functions.sh b/package/base-files/src/etc/functions.sh
new file mode 100644
index 000000000..5d76f4843
--- /dev/null
+++ b/package/base-files/src/etc/functions.sh
@@ -0,0 +1,79 @@
+# newline
+N="
+"
+
+append() {
+	local var="$1"
+	local value="$2"
+	local sep="${3:- }"
+
+	eval "export -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
+}
+
+load_modules() {
+	(sed "s,^[^#][^[:space:]]*,insmod /lib/modules/$(uname -r)/&.ko," $* | sh 2>&- || :)
+}
+
+user_exists() {
+	grep -q "^$1:" $IPKG_INSTROOT/etc/passwd 2>&-
+}
+
+group_exists() {
+	grep -q "^$1:" $IPKG_INSTROOT/etc/group 2>&-
+}
+
+service_exists() {
+	grep -q "^$1[[:space:]]*$2" $IPKG_INSTROOT/etc/services 2>&-
+}
+
+rcconf_exists() {
+	grep -q "^#*$1=" $IPKG_INSTROOT/etc/rc.conf 2>&-
+}
+
+add_user() {
+	user_exists $1 || {
+		echo "adding user $1 to /etc/passwd"
+		echo "$1:x:$2:${3:-$2}:$1:${4:-/tmp}:${5:-/bin/false}" \
+		    >>$IPKG_INSTROOT/etc/passwd
+	}
+}
+
+add_group() {
+	group_exists $1 || {
+		echo "adding group $1 to /etc/group"
+		echo "$1:x:$2:$3" >>$IPKG_INSTROOT/etc/group
+	}
+}
+
+add_service() {
+	service_exists $1 $2 || {
+		echo "adding service $1 to /etc/services"
+		printf '%s\t%s\n' "$1" "$2" >>$IPKG_INSTROOT/etc/services
+	}
+}
+
+add_rcconf() {
+	rcconf_exists ${2-$1} || {
+		echo "adding service ${2-$1} to /etc/rc.conf"
+		printf '%s="%s"\t\t# %s\n' "${2:-$1}" "${3:-NO}" "$1" \
+			>>$IPKG_INSTROOT/etc/rc.conf
+	}
+}
+
+get_next_uid() {
+	uid=1
+	while grep "^[^:]*:[^:]*:$uid:" $IPKG_INSTROOT/etc/passwd \
+	    >/dev/null 2>&1; do
+		uid=$(($uid+1))
+	done
+	echo $uid
+}
+
+get_next_gid() {
+	gid=1
+	while grep "^[^:]*:[^:]*:$gid:" $IPKG_INSTROOT/etc/group \
+	    >/dev/null 2>&1; do
+		gid=$(($gid+1))
+	done
+	echo $gid
+}