From aa6eb81f97acb528db56b5e7117e5a61b4f6ee00 Mon Sep 17 00:00:00 2001
From: Sergey Abramchuk <ss.abramchuk@gmail.com>
Date: Wed, 6 Sep 2017 22:57:35 +0300
Subject: [PATCH] Convert integer result to error reason

---
 OpenVPN Adapter/NSError+Message.h | 15 +++++++++++++++
 OpenVPN Adapter/NSError+Message.m | 28 ++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 OpenVPN Adapter/NSError+Message.h
 create mode 100644 OpenVPN Adapter/NSError+Message.m

diff --git a/OpenVPN Adapter/NSError+Message.h b/OpenVPN Adapter/NSError+Message.h
new file mode 100644
index 0000000..6497c74
--- /dev/null
+++ b/OpenVPN Adapter/NSError+Message.h	
@@ -0,0 +1,15 @@
+//
+//  NSError+Message.h
+//  OpenVPN Adapter
+//
+//  Created by Sergey Abramchuk on 06.09.17.
+//
+//
+
+#import <Foundation/Foundation.h>
+
+@interface NSError (Message)
+
++ (NSString *)reasonFromResult:(NSInteger)result;
+
+@end
diff --git a/OpenVPN Adapter/NSError+Message.m b/OpenVPN Adapter/NSError+Message.m
new file mode 100644
index 0000000..47e3a66
--- /dev/null
+++ b/OpenVPN Adapter/NSError+Message.m	
@@ -0,0 +1,28 @@
+//
+//  NSError+Message.m
+//  OpenVPN Adapter
+//
+//  Created by Sergey Abramchuk on 06.09.17.
+//
+//
+
+#import <mbedtls/error.h>
+
+#import "NSError+Message.h"
+
+@implementation NSError (Message)
+
++ (NSString *)reasonFromResult:(NSInteger)result {
+    size_t length = 1024;
+    char *buffer = malloc(length);
+    
+    mbedtls_strerror(result, buffer, length);
+    
+    NSString *reason = [NSString stringWithUTF8String:buffer];
+    
+    free(buffer);
+    
+    return reason;
+}
+
+@end