From: Guus Sliepen <guus@meshlink.io>
Date: Mon, 8 Dec 2014 15:16:34 +0000 (+0100)
Subject: utcp_get_sndbuf_free() should return 0 if utcp_send() would fail.
X-Git-Url: http://git.meshlink.io/?p=utcp;a=commitdiff_plain;h=a4e2223575a4b0659bcbffeb73e636d5ba5847bc

utcp_get_sndbuf_free() should return 0 if utcp_send() would fail.
---

diff --git a/utcp.c b/utcp.c
index f5484ab..186b63e 100644
--- a/utcp.c
+++ b/utcp.c
@@ -1174,7 +1174,10 @@ size_t utcp_get_sndbuf(struct utcp_connection *c) {
 }
 
 size_t utcp_get_sndbuf_free(struct utcp_connection *c) {
-	return buffer_free(&c->sndbuf);
+	if(c->state == ESTABLISHED || c->state == CLOSE_WAIT)
+		return buffer_free(&c->sndbuf);
+	else
+		return 0;
 }
 
 void utcp_set_sndbuf(struct utcp_connection *c, size_t size) {