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-rw-r--r--vio/viosocket.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/vio/viosocket.c b/vio/viosocket.c
index 163eb279d45..0f3a32d62ae 100644
--- a/vio/viosocket.c
+++ b/vio/viosocket.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000 MySQL AB
+/* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -1060,6 +1060,34 @@ ssize_t vio_pending(Vio *vio)
/**
+ Checks if the error code, returned by vio_getnameinfo(), means it was the
+ "No-name" error.
+
+ Windows-specific note: getnameinfo() returns WSANO_DATA instead of
+ EAI_NODATA or EAI_NONAME when no reverse mapping is available at the host
+ (i.e. Windows can't get hostname by IP-address). This error should be
+ treated as EAI_NONAME.
+
+ @return if the error code is actually EAI_NONAME.
+ @retval true if the error code is EAI_NONAME.
+ @retval false otherwise.
+*/
+
+my_bool vio_is_no_name_error(int err_code)
+{
+#ifdef _WIN32
+
+ return err_code == WSANO_DATA || err_code == EAI_NONAME;
+
+#else
+
+ return err_code == EAI_NONAME;
+
+#endif
+}
+
+
+/**
This is a wrapper for the system getnameinfo(), because different OS
differ in the getnameinfo() implementation:
- Solaris 10 requires that the 2nd argument (salen) must match the