From 1effc94df7e558de6319082e390803911cf45c24 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Wed, 12 Jan 2011 19:27:48 +0000
Subject: Plugger, and potentially anything that can use windows, can report
 windows errors now...uh...woo?

---
 src/compat/win32.cpp | 22 ++++++++++++++++++++++
 src/compat/win32.h   |  2 ++
 src/plugger.h        | 18 ++++++++++--------
 3 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/src/compat/win32.cpp b/src/compat/win32.cpp
index 6fcac15..052644a 100644
--- a/src/compat/win32.cpp
+++ b/src/compat/win32.cpp
@@ -162,5 +162,27 @@ int Bu::Winsock2::__WSAFDIsSet( SOCKET s, fd_set *set ) {
 	return (*Bu::Winsock2::_fnptr___WSAFDIsSet)( s, set );
 }
 
+Bu::FString Bu::getLastWinError()
+{
+    LPVOID lpMsgBuf;
+    DWORD dw = GetLastError(); 
+
+    FormatMessageA(
+        FORMAT_MESSAGE_ALLOCATE_BUFFER | 
+        FORMAT_MESSAGE_FROM_SYSTEM |
+        FORMAT_MESSAGE_IGNORE_INSERTS,
+        NULL,
+        dw,
+        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+        (LPSTR) &lpMsgBuf,
+        0, NULL );
+
+	Bu::FString sRet( (char *)lpMsgBuf );
+
+    LocalFree(lpMsgBuf);
+
+	return sRet;
+}
+
 #endif
 
diff --git a/src/compat/win32.h b/src/compat/win32.h
index 6304d4c..ea0ae53 100644
--- a/src/compat/win32.h
+++ b/src/compat/win32.h
@@ -89,6 +89,8 @@ namespace Bu
 		static char scode[15];
 		static char *gai_strerror( int iCode );
 	};
+
+	Bu::FString getLastWinError();
 };
 
 #ifdef FD_ISSET
diff --git a/src/plugger.h b/src/plugger.h
index 37d6f19..2780356 100644
--- a/src/plugger.h
+++ b/src/plugger.h
@@ -14,6 +14,8 @@
 #include "bu/fstring.h"
 #include <stddef.h>
 
+#include "bu/config.h"
+
 #ifdef WIN32
 # include <windows.h>
 #else
@@ -197,29 +199,29 @@ namespace Bu
 			pReg->dlHandle = LoadLibrary( sFName.getStr() );
 			if( pReg->dlHandle == NULL )
 			{
-				throw PluginException( 1, "Error opening %s: %s", sFName.getStr(),
-						"unknown error, fix this for windows" );
+				throw PluginException( 1, "Error opening %s: %s",
+					sFName.getStr(), Bu::getLastWinError().getStr() );
 			}
 			pReg->pInfo = (PluginInfo *)GetProcAddress( pReg->dlHandle,
 					sPluginName.getStr() );
 			if( pReg->pInfo == NULL )
 			{
-				throw PluginException( 2, "Error mapping %s: %s", sFName.getStr(),
-						"unknown error, fix this for windows" );
+				throw PluginException( 2, "Error mapping %s: %s",
+					sFName.getStr(), Bu::getLastWinError().getStr() );
 			}
 #else
 			pReg->dlHandle = dlopen( sFName.getStr(), RTLD_NOW );
 			if( pReg->dlHandle == NULL )
 			{
-				throw PluginException( 1, "Error opening %s: %s", sFName.getStr(),
-						dlerror() );
+				throw PluginException( 1, "Error opening %s: %s",
+					sFName.getStr(), dlerror() );
 			}
 			pReg->pInfo = (PluginInfo *)dlsym( pReg->dlHandle,
 					sPluginName.getStr() );
 			if( pReg->pInfo == NULL )
 			{
-				throw PluginException( 2, "Error mapping %s: %s", sFName.getStr(),
-						dlerror() );
+				throw PluginException( 2, "Error mapping %s: %s",
+					sFName.getStr(), dlerror() );
 			}
 #endif
 			hPlugin.insert( pReg->pInfo->sID, pReg );
-- 
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