1 files changed, 26 insertions, 0 deletions
diff --git a/scripts/functions.sh b/scripts/functions.sh
new file mode 100644
index 0000000000..9a7fcde627
--- /dev/null
+++ b/scripts/functions.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+
+get_magic_word() {
+	dd if=$1 bs=4 count=1 2>/dev/null | od -A n -N 4 -t x1 | tr -d ' '
+}
+
+get_fs_type() {
+	local magic_word="$(get_magic_word "$1")"
+
+	case "$magic_word" in
+	"3118"*)
+		echo "ubifs"
+		;;
+	"68737173")
+		echo "squashfs"
+		;;
+	*)
+		echo "unknown"
+		;;
+	esac
+}
+
+round_up() {
+	echo "$(((($1 + ($2 - 1))/ $2) * $2))"
+}