From a2cb6a2d5e1d91704eff9f5cebe73b773c708bc6 Mon Sep 17 00:00:00 2001
From: Martin Peach <mrpeach@users.sourceforge.net>
Date: Wed, 5 Nov 2008 19:06:23 +0000
Subject: Added broadcast permission to sockets as suggested by zmoelnig's
 patch 2221504

svn path=/trunk/externals/mrpeach/; revision=10361
---
 net/udpsend.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'net/udpsend.c')

diff --git a/net/udpsend.c b/net/udpsend.c
index 6a6aef5..5234fd4 100644
--- a/net/udpsend.c
+++ b/net/udpsend.c
@@ -50,6 +50,7 @@ static void udpsend_connect(t_udpsend *x, t_symbol *hostname,
     struct hostent      *hp;
     int                 sockfd;
     int                 portno = fportno;
+    int                 broadcast = 1;/* nonzero is true */
 
     if (x->x_fd >= 0)
     {
@@ -67,6 +68,15 @@ static void udpsend_connect(t_udpsend *x, t_symbol *hostname,
         sys_sockerror("udpsend: socket");
         return;
     }
+/* Based on zmoelnig's patch 2221504:
+Enable sending of broadcast messages (if hostname is a broadcast address)*/
+#ifdef SO_BROADCAST
+    if( 0 != setsockopt(sockfd, SOL_SOCKET, SO_BROADCAST, (const void *)&broadcast, sizeof(broadcast)))
+    {
+        pd_error(x, "couldn't switch to broadcast mode");
+    }
+#endif /* SO_BROADCAST */
+
     /* connect socket using hostname provided in command line */
     server.sin_family = AF_INET;
     hp = gethostbyname(hostname->s_name);
-- 
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