From 20281737b136211291216ee84a5050dd64cd87a7 Mon Sep 17 00:00:00 2001
From: Andrew Gaul <andrew@gaul.org>
Date: Fri, 25 Jun 2021 18:36:40 +0900
Subject: [PATCH] Set explicit Content-Length: 0 when initiating MPU (#1696)

This works around a GCS quirk that incorrectly requires this header.
Fixes #1661.
---
 src/curl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/curl.cpp b/src/curl.cpp
index a2faac6..a1c3491 100644
--- a/src/curl.cpp
+++ b/src/curl.cpp
@@ -3528,7 +3528,6 @@ int S3fsCurl::PreMultipartPostRequest(const char* tpath, headers_t& meta, std::s
     }
 
     requestHeaders = curl_slist_sort_insert(requestHeaders, "Accept", NULL);
-    requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-Length", NULL);
     requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-Type", contype.c_str());
 
     op = "POST";
@@ -3540,6 +3539,7 @@ int S3fsCurl::PreMultipartPostRequest(const char* tpath, headers_t& meta, std::s
     curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata);
     curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
     curl_easy_setopt(hCurl, CURLOPT_POSTFIELDSIZE, 0);
+    curl_easy_setopt(hCurl, CURLOPT_INFILESIZE, 0);           // Content-Length
     S3fsCurl::AddUserAgent(hCurl);                            // put User-Agent
 
     // request