Remove CommandError::RngError

We switched to rand::thread_rng() which cannot fail.  Therefore the
CommandError::RngError is no longer needed and removed in this patch.

1 files changed, 2 insertions, 5 deletions

diff --git a/src/util.rs b/src/util.rs
index a2e957e..ccec5e6 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -35,8 +35,6 @@ pub enum CommandError {
     InvalidString,
     /// You passed an invalid slot.
     InvalidSlot,
-    /// An error occured during random number generation.
-    RngError,
 }
 
 /// Log level for libnitrokey.
@@ -99,10 +97,10 @@ pub fn get_last_error() -> CommandError {
     };
 }
 
-pub fn generate_password(length: usize) -> std::io::Result<Vec<u8>> {
+pub fn generate_password(length: usize) -> Vec<u8> {
     let mut data = vec![0u8; length];
     rand::thread_rng().fill(&mut data[..]);
-    return Ok(data);
+    return data;
 }
 
 pub fn get_cstring<T: Into<Vec<u8>>>(s: T) -> Result<CString, CommandError> {
@@ -127,7 +125,6 @@ impl fmt::Display for CommandError {
             CommandError::Unknown => "An unknown error occured",
             CommandError::InvalidString => "You passed a string containing a null byte",
             CommandError::InvalidSlot => "The given slot is invalid",
-            CommandError::RngError => "An error occured during random number generation",
         };
         write!(f, "{}", msg)
     }