fix bug EINVAL returned when NONTHREAD and MSGPEEK enabled

1 files changed, 1 insertions, 1 deletions

diff --git a/rb.c b/rb.c
index 8ecf241..c4aa7d3 100644
--- a/rb.c
+++ b/rb.c
@@ -576,7 +576,7 @@ ssize_t rb_recv(struct rb *rb, void *buffer, size_t count, int flags)
       return -1;
     }
 
-  if (rb->flags & O_NONTHREAD && flags & MSG_PEEK)
+  if (flags & MSG_PEEK && (rb->flags & O_NONTHREAD) != O_NONTHREAD)
     {
       errno = EINVAL;
       return -1;