From 20e1abc00c01ee708a559a4d4e0cde1d9f4a5995 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 16 Apr 2014 19:17:28 +0200
Subject: [PATCH] http client: allow HTTP 1.1 to HTTP 1.0 switch

---
 src/httpc.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/httpc.c b/src/httpc.c
index 52226be0..4be83d74 100644
--- a/src/httpc.c
+++ b/src/httpc.c
@@ -905,8 +905,13 @@ header:
     return http_client_flush(hc, -EINVAL);
   if ((ver = http_str2ver(argv[0])) < 0)
     return http_client_flush(hc, -EINVAL);
-  if (ver != hc->hc_version)
-    return http_client_flush(hc, -EINVAL);
+  if (ver != hc->hc_version) {
+    /* 1.1 -> 1.0 transition allowed */
+    if (hc->hc_version == HTTP_VERSION_1_1 && ver == HTTP_VERSION_1_0)
+      hc->hc_version = ver;
+    else
+      return http_client_flush(hc, -EINVAL);
+  }
   if ((hc->hc_code = atoi(argv[1])) < 200)
     return http_client_flush(hc, -EINVAL);
   while ((p = strtok_r(NULL, "\r\n", &saveptr)) != NULL) {