From 51eedb216b8191094bb625017bb9f0c357a1d171 Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Tue, 10 Oct 2006 10:47:04 +0000
Subject: portability fixes

---
 src/assuan-buffer.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/assuan-buffer.c')

diff --git a/src/assuan-buffer.c b/src/assuan-buffer.c
index 5580392..228aa7c 100644
--- a/src/assuan-buffer.c
+++ b/src/assuan-buffer.c
@@ -490,6 +490,15 @@ assuan_send_data (assuan_context_t ctx, const void *buffer, size_t length)
 assuan_error_t
 assuan_sendfd (assuan_context_t ctx, int fd)
 {
+  /* It is explicitly allowed to use (NULL, -1) as a runtime test to
+     check whether descriptor passing is available. */
+  if (!ctx && fd == -1)
+#ifdef USE_DESCRIPTOR_PASSING
+    return 0;
+#else
+    return _assuan_error (ASSUAN_Not_Implemented);
+#endif
+
   if (! ctx->io->sendfd)
     return set_error (ctx, Not_Implemented,
 		      "server does not support sending and receiving "
-- 
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