udevd: init_notify() fix abstract namespace name handling

diff --git a/udev/udevd.c b/udev/udevd.c
index e38c601..873634f 100644 (file)
--- a/udev/udevd.c
+++ b/udev/udevd.c
@@ -1006,7 +1006,9 @@ static int init_notify(const char *state)
 
        memset(&msghdr, 0, sizeof(msghdr));
        msghdr.msg_name = &sockaddr;
-       msghdr.msg_namelen = sizeof(struct sockaddr_un);
+       msghdr.msg_namelen = sizeof(sa_family_t) + strlen(e);
+       if (msghdr.msg_namelen > sizeof(struct sockaddr_un))
+               msghdr.msg_namelen = sizeof(struct sockaddr_un);
        msghdr.msg_iov = &iovec;
        msghdr.msg_iovlen = 1;
        msghdr.msg_control = &control;