[libmicrohttpd] branch master updated: build_header_response(): fail early if no write space is available

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karlson2k pushed a commit to branch master
in repository libmicrohttpd.

The following commit(s) were added to refs/heads/master by this push:
     new 0fd78e5f build_header_response(): fail early if no write space is 
available
0fd78e5f is described below

commit 0fd78e5f406161115fa31ba91e02ac7bfbae1dfd
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
AuthorDate: Wed Sep 29 16:16:48 2021 +0300

    build_header_response(): fail early if no write space is available
---
 src/microhttpd/connection.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/microhttpd/connection.c b/src/microhttpd/connection.c
index 3e6a4ba0..925f9df5 100644
--- a/src/microhttpd/connection.c
+++ b/src/microhttpd/connection.c
@@ -1980,6 +1980,8 @@ build_header_response (struct MHD_Connection *connection)
   buf = c->write_buffer;
   pos = c->write_buffer_append_offset;
   buf_size = c->write_buffer_size;
+  if ((NULL == buf) || (0 == buf_size))
+    return MHD_NO;
 
   /* * The status line * */
 

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