find fs type of device automatically

util/cutil.go

@@ -1,16 +1,41 @@
 package util
 
 /*
-#cgo LDFLAGS: -lblkid -luuid
+#cgo LDFLAGS: -lmount -lblkid -luuid
 #include<blkid/blkid.h>
+#include<libmount/libmount.h>
 #include<stdlib.h>
 */
 import "C"
 import "unsafe"
 
+import (
+	"errors"
+)
+
 func ResolveDevice(spec string) string {
-	cString := C.blkid_evaluate_spec(C.CString(spec), nil)
+	cSpec := C.CString(spec)
+	defer C.free(unsafe.Pointer(cSpec))
+	cString := C.blkid_evaluate_spec(cSpec, nil)
 	defer C.free(unsafe.Pointer(cString)) 
 	return C.GoString(cString)
 }
 
+func GetFsType(device string) (string, error) {
+	var ambi * C.int
+	cDevice := C.CString(device)
+	defer C.free(unsafe.Pointer(cDevice))
+	cString := C.mnt_get_fstype(cDevice, ambi, nil)
+	defer C.free(unsafe.Pointer(cString))
+	if cString != nil {
+		return C.GoString(cString), nil
+	} 
+	return "", errors.New("Error while getting fstype")
+}
+
+func intToBool(value C.int) bool {
+	if value == 0 {
+		return false
+	}
+	return true
+}