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authorMatthias Schiffer <mschiffer@universe-factory.net>2013-03-02 14:32:54 +0100
committerMatthias Schiffer <mschiffer@universe-factory.net>2013-03-02 14:32:54 +0100
commit4af0c6c0bcceab7640b943c56620b11302f6bb9b (patch)
treef78f76f29108955b2102af46ec090e51d781dbf2
parent84413b1fe3811b2d07e0be4602c817580a3e4e92 (diff)
downloadfastd-4af0c6c0bcceab7640b943c56620b11302f6bb9b.tar
fastd-4af0c6c0bcceab7640b943c56620b11302f6bb9b.zip
Don't crash on empty UDP packets
-rw-r--r--src/fastd.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/fastd.c b/src/fastd.c
index d43784f..380f6a2 100644
--- a/src/fastd.c
+++ b/src/fastd.c
@@ -780,8 +780,8 @@ static void handle_socket(fastd_context_t *ctx, fastd_socket_t *sock) {
socklen_t recvaddrlen = sizeof(recvaddr);
ssize_t len = recvfrom(sock->fd, buffer.data, buffer.len, 0, (struct sockaddr*)&recvaddr, &recvaddrlen);
- if (len < 0) {
- if (errno != EINTR)
+ if (len <= 0) {
+ if (len < 0 && errno != EINTR)
pr_warn(ctx, "recvfrom: %s", strerror(errno));
fastd_buffer_free(buffer);