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-rw-r--r--sys/kern/uipc_socket.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/uipc_socket.c b/sys/kern/uipc_socket.c
index d2e45564c09f..be704bf0014f 100644
--- a/sys/kern/uipc_socket.c
+++ b/sys/kern/uipc_socket.c
@@ -1424,6 +1424,8 @@ soshutdown(so, how)
if (!(how == SHUT_RD || how == SHUT_WR || how == SHUT_RDWR))
return (EINVAL);
+ if ((so->so_state & SS_ISCONNECTED) == 0)
+ return (ENOTCONN);
if (how != SHUT_WR)
sorflush(so);