From 413050817e42481ca26aa8030e941c2f921f17d0 Mon Sep 17 00:00:00 2001
From: Henry Tao <henry.tao@shopify.com>
Date: Sun, 12 Jul 2020 21:17:08 -0400
Subject: [PATCH] Handling the `reject` of getRandomBytes for iOS

---
 ios/CovidShield/CovidShield.m | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/ios/CovidShield/CovidShield.m b/ios/CovidShield/CovidShield.m
index e1ff078e..08c3b471 100644
--- a/ios/CovidShield/CovidShield.m
+++ b/ios/CovidShield/CovidShield.m
@@ -15,11 +15,14 @@ @implementation CovidShield
 {
   void *buff = malloc(size);
   int status = SecRandomCopyBytes(kSecRandomDefault, size, buff);
-  if (status == 0) {
+  free(buff);
+  if (status == errSecSuccess) {
     NSString *base64encoded = [[[NSData alloc] initWithBytes:buff length:size] base64EncodedStringWithOptions:0];
     resolve(base64encoded);
+  } else {
+    NSError *error = [NSError errorWithDomain:NSOSStatusErrorDomain code:status userInfo:nil];
+    reject([NSString stringWithFormat:@"%ld", (long)error.code], error.localizedDescription ,error);
   }
-  free(buff);
 }
 
 RCT_REMAP_METHOD(downloadDiagnosisKeysFile, downloadDiagnosisKeysFileWithURL:(NSString *)url WithResolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject)