Better bug fix for #5569: "Incorrect "Access Denied" error with SAME login DIFFERENT host"

This fixes also the reverse lookup bug introduced by the previous patch



mysql-test/t/group_by.test:
  Remove empty line
vio/viosocket.c:
  Added function comment

1 files changed, 12 insertions, 0 deletions

diff --git a/vio/viosocket.c b/vio/viosocket.c
index 1b6f46c57cf..f45c9dd98c4 100644
--- a/vio/viosocket.c
+++ b/vio/viosocket.c
@@ -291,6 +291,18 @@ my_bool vio_peer_addr(Vio * vio, char *buf, uint16 *port)
 }
 
 
+/*
+  Get in_addr for a TCP/IP connection
+
+  SYNOPSIS
+    vio_in_addr()
+    vio		vio handle
+    in		put in_addr here
+
+  NOTES
+    one must call vio_peer_addr() before calling this one
+*/
+
 void vio_in_addr(Vio *vio, struct in_addr *in)
 {
   DBUG_ENTER("vio_in_addr");