[OpenWrt-Devel] [PATCH] Support broadcast sockets in usock

[javierdo1 at gmail.com]

From: Javier Domingo Cansino <javierdo1 at gmail.com>

Signed-off-by: Javier Domingo Cansino <javierdo1 at gmail.com>
---
 usock.c | 5 ++++-
 usock.h | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/usock.c b/usock.c
index 6748ef3..58f16da 100644
--- a/usock.c
+++ b/usock.c
@@ -43,16 +43,19 @@ static void usock_set_flags(int sock, unsigned int type)
 static int usock_connect(int type, struct sockaddr *sa, int sa_len, int family, int socktype, bool server)
 {
 	int sock;
+	int flags = SO_REUSEADDR;
 
 	sock = socket(family, socktype, 0);
 	if (sock < 0)
 		return -1;
 
 	usock_set_flags(sock, type);
+	if (flags & USOCK_BROADCAST)
+		flags |= SO_BROADCAST;
 
 	if (server) {
 		const int one = 1;
-		setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
+		setsockopt(sock, SOL_SOCKET, flags, &one, sizeof(one));
 
 		if (!bind(sock, sa, sa_len) &&
 		    (socktype != SOCK_STREAM || !listen(sock, SOMAXCONN)))
diff --git a/usock.h b/usock.h
index b0b952b..3471f2a 100644
--- a/usock.h
+++ b/usock.h
@@ -26,6 +26,7 @@
 #define USOCK_NOCLOEXEC		0x0200
 #define USOCK_NONBLOCK		0x0400
 #define USOCK_NUMERIC		0x0800
+#define USOCK_BROADCAST		0x1000
 #define USOCK_IPV6ONLY		0x2000
 #define USOCK_IPV4ONLY		0x4000
 #define USOCK_UNIX		0x8000
-- 
2.6.0
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