From 0972ccd97cc8f913ea828a1e03ef3652fc1ff514 Mon Sep 17 00:00:00 2001
From: Jeff King <peff@peff.net>
Date: Thu, 31 Oct 2013 02:35:31 -0400
Subject: http: return curl's AUTHAVAIL via slot_results

Callers of the http code may want to know which auth types
were available for the previous request. But after finishing
with the curl slot, they are not supposed to look at the
curl handle again. We already handle returning other
information via the slot_results struct; let's add a flag to
check the available auth.

Note that older versions of curl did not support this, so we
simply return 0 (something like "-1" would be worse, as the
value is a bitflag and we might accidentally set a flag).
This is sufficient for the callers planned in this series,
who only trigger some optional behavior if particular bits
are set, and can live with a fake "no bits" answer.

Signed-off-by: Jeff King <peff@peff.net>

diff --git a/http.c b/http.c
index 2d086ae..1ea62fa 100644
--- a/http.c
+++ b/http.c
@@ -706,6 +706,12 @@ void finish_active_slot(struct active_request_slot *slot)
 	if (slot->results != NULL) {
 		slot->results->curl_result = slot->curl_result;
 		slot->results->http_code = slot->http_code;
+#if LIBCURL_VERSION_NUM >= 0x070a08
+		curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
+				  &slot->results->auth_avail);
+#else
+		slot->results->auth_avail = 0;
+#endif
 	}
 
 	/* Run callback if appropriate */
diff --git a/http.h b/http.h
index d77c1b5..81d4843 100644
--- a/http.h
+++ b/http.h
@@ -54,6 +54,7 @@
 struct slot_results {
 	CURLcode curl_result;
 	long http_code;
+	long auth_avail;
 };
 
 struct active_request_slot {
-- 
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