[libvirt] [PATCH] esx: Correctly disable HTTP Expect header usage of libcurl

Matthias Bolte matthias.bolte at googlemail.com
Mon Feb 20 21:38:50 UTC 2012

Adding "Expect:" to the header list stops libcurl from sending a
Expect header at all.

Before, a dummy Expect header was added that might confuse HTTP
proxies and result in HTTP error code 417 being reported.
 src/esx/esx_vi.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/esx/esx_vi.c b/src/esx/esx_vi.c
index 14ad50a..6004aac 100644
--- a/src/esx/esx_vi.c
+++ b/src/esx/esx_vi.c
@@ -293,14 +293,14 @@ esxVI_CURL_Connect(esxVI_CURL *curl, esxUtil_ParsedUri *parsedUri)
                                       "Content-Type: text/xml; charset=UTF-8");
-     * Add a dummy expect header to stop CURL from waiting for a response code
+     * Add an empty expect header to stop CURL from waiting for a response code
      * 100 (Continue) from the server before continuing the POST operation.
      * Waiting for this response would slowdown each communication with the
      * server by approx. 2 sec, because the server doesn't send the expected
      * 100 (Continue) response and the wait times out resulting in wasting
      * approx. 2 sec per POST operation.
-    curl->headers = curl_slist_append(curl->headers, "Expect: nothing");
+    curl->headers = curl_slist_append(curl->headers, "Expect:");
     if (curl->headers == NULL) {

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