From 035ecdc9e285ad2fd9ccf51e4ed2ac01b53dc3d1 Mon Sep 17 00:00:00 2001
From: peterbell10 <peterbell10@live.co.uk>
Date: Thu, 15 Jun 2017 10:03:49 +0100
Subject: Replace evdns with getaddrinfo and getnameinfo (#3766)

---
 src/OSSupport/GetAddressInfoError.h | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/OSSupport/GetAddressInfoError.h

(limited to 'src/OSSupport/GetAddressInfoError.h')

diff --git a/src/OSSupport/GetAddressInfoError.h b/src/OSSupport/GetAddressInfoError.h
new file mode 100644
index 000000000..43869fb63
--- /dev/null
+++ b/src/OSSupport/GetAddressInfoError.h
@@ -0,0 +1,29 @@
+#pragma once
+
+
+
+/** Returns the readable form of a getaddressinfo type error code */
+inline AString ErrorString(int a_ErrorCode)
+{
+	// Note gai_strerror is not threadsafe on windows
+	#ifdef _WIN32
+		char ErrorStr[GAI_STRERROR_BUFFER_SIZE + 1];
+
+		int MsgLen = FormatMessageA(
+			FORMAT_MESSAGE_FROM_SYSTEM |
+			FORMAT_MESSAGE_IGNORE_INSERTS |
+			FORMAT_MESSAGE_MAX_WIDTH_MASK,
+			nullptr,
+			a_ErrorCode,
+			MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+			ErrorStr,
+			sizeof(ErrorStr) - 1,
+			nullptr
+		);
+
+		return AString(ErrorStr, MsgLen);
+	#else
+		return gai_strerror(a_ErrorCode);
+	#endif
+}
+
-- 
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