Allow sending to a broadcast address

1 files changed, 6 insertions, 0 deletions

diff --git a/udprelay.c b/udprelay.c
index 672b6d1..aca49e8 100644
--- a/udprelay.c
+++ b/udprelay.c
@@ -133,6 +133,12 @@ int main(int argc, char *argv[]) {
         return 1;
     };
 
+    /* Allow UDP broadcasts on sending socket */
+    if (setsockopt(sndfd, SOL_SOCKET, SO_BROADCAST, &optval, sizeof(int)) < 0) {
+        perror("setsockopt(sndfd, SOL_SOCKET, SO_BROADCAST, ...)");
+        return 1;
+    }
+
     /* Set properties of source address */
     srcaddr.sin_family = AF_INET;
     srcaddr.sin_port = htons(lstport);