From 57e09ad84867f88792489b459caddb6482476b0d Mon Sep 17 00:00:00 2001
From: Steve Rago <rago.steve@gmail.com>
Date: Wed, 17 Mar 2021 10:31:03 -0400
Subject: [PATCH] add error returns missing from protoc to prevent it from
 exiting with a successful return value when writing the zip file fails

---
 src/google/protobuf/compiler/command_line_interface.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/google/protobuf/compiler/command_line_interface.cc b/src/google/protobuf/compiler/command_line_interface.cc
index b0b2963d2dcd..3705e369c623 100644
--- a/src/google/protobuf/compiler/command_line_interface.cc
+++ b/src/google/protobuf/compiler/command_line_interface.cc
@@ -586,10 +586,12 @@ bool CommandLineInterface::GeneratorContextImpl::WriteAllToZip(
 
   if (stream.GetErrno() != 0) {
     std::cerr << filename << ": " << strerror(stream.GetErrno()) << std::endl;
+    return false;
   }
 
   if (!stream.Close()) {
     std::cerr << filename << ": " << strerror(stream.GetErrno()) << std::endl;
+    return false;
   }
 
   return true;