Refactor library errors into LibraryError enum

Previously, library errors were part of the CommandError enum.  As
command errors and library errors are two different error types, they
should be split into two enums.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/util.rs b/src/util.rs
index 3b9904f..2738fce 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -5,7 +5,7 @@ use libc::{c_void, free};
 use rand_core::RngCore;
 use rand_os::OsRng;
 
-use crate::error::{CommandError, Error};
+use crate::error::{CommandError, Error, LibraryError};
 
 /// Log level for libnitrokey.
 ///
@@ -78,7 +78,7 @@ pub fn generate_password(length: usize) -> Result<Vec<u8>, Error> {
 }
 
 pub fn get_cstring<T: Into<Vec<u8>>>(s: T) -> Result<CString, Error> {
-    CString::new(s).or(Err(CommandError::InvalidString.into()))
+    CString::new(s).or(Err(LibraryError::InvalidString.into()))
 }
 
 impl Into<i32> for LogLevel {