From e88276fdec7b3b94ec939f5eb1c8def004ee3878 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Wed, 1 Jun 2022 12:36:34 +0000
Subject:  Rework endianness conversion primitives

Signed-off-by: Laurent Bercot <ska@appnovation.com>
---
 src/libstddjb/socket_tryreservein.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 src/libstddjb/socket_tryreservein.c

(limited to 'src/libstddjb/socket_tryreservein.c')

diff --git a/src/libstddjb/socket_tryreservein.c b/src/libstddjb/socket_tryreservein.c
new file mode 100644
index 0000000..26c04b2
--- /dev/null
+++ b/src/libstddjb/socket_tryreservein.c
@@ -0,0 +1,14 @@
+/* ISC license. */
+
+#include <skalibs/nonposix.h>
+#include <sys/socket.h>
+#include <skalibs/socket.h>
+
+void socket_tryreservein (int s, unsigned int size)
+{
+  while (size >= 1024)
+  {
+    if (!setsockopt(s, SOL_SOCKET, SO_RCVBUF, &size, sizeof size)) return ;
+    size -= (size >> 5) ;
+  }
+}
-- 
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