From 066d6704f2ec11954c10bf7296e9aac2e72e941d Mon Sep 17 00:00:00 2001
From: Sergey Abramchuk <ss.abramchuk@gmail.com>
Date: Thu, 7 Sep 2017 10:35:02 +0300
Subject: [PATCH] Use predefined result value for error reason

---
 OpenVPN Adapter/OpenVPNCertificate.m | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/OpenVPN Adapter/OpenVPNCertificate.m b/OpenVPN Adapter/OpenVPNCertificate.m
index dc36e05..c1f32ef 100644
--- a/OpenVPN Adapter/OpenVPNCertificate.m	
+++ b/OpenVPN Adapter/OpenVPNCertificate.m	
@@ -98,9 +98,10 @@
 
 - (NSData *)derData:(out NSError **)error {
     if (self.crt->raw.p == NULL || self.crt->raw.len == 0) {
+        NSString *reason = [NSError reasonFromResult:MBEDTLS_ERR_X509_BAD_INPUT_DATA];
         *error = [NSError errorWithDomain:OpenVPNIdentityErrorDomain code:MBEDTLS_ERR_X509_BAD_INPUT_DATA userInfo:@{
             NSLocalizedDescriptionKey: @"Failed to write DER data.",
-            NSLocalizedFailureReasonErrorKey: @"Input invalid"
+            NSLocalizedFailureReasonErrorKey:reason
         }];
         
         return nil;