1 files changed, 73 insertions, 0 deletions
diff --git a/erts/etc/win32/erl_log.c b/erts/etc/win32/erl_log.c
new file mode 100644
index 0000000000..85cc49e0e3
--- /dev/null
+++ b/erts/etc/win32/erl_log.c
@@ -0,0 +1,73 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 1996-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+/* -----------------------------------------------------------------
+ * erl_log:
+ *
+ * Provides a simple debug log for the Erlang emulator.
+ * It simples echoes its standard intput to the console.
+ *
+ * Author:  Bjorn Gustavsson
+ * Created: 1996-12-06
+ * -----------------------------------------------------------------
+ */
+
+#include <windows.h>
+#include <stdio.h>
+
+static void print_last_error(char* message);
+
+main()
+{
+  HANDLE in;
+  HANDLE out;
+  char sbuf[256];
+  DWORD written;
+  DWORD numChars;
+
+  in = GetStdHandle(STD_INPUT_HANDLE);
+  out = CreateFile("CONOUT$", GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
+		  FILE_ATTRIBUTE_NORMAL, NULL);
+  if (out == INVALID_HANDLE_VALUE) {
+    print_last_error("CreateFile");
+    exit(1);
+  }
+
+  while (ReadFile(in, sbuf, sizeof(sbuf), &numChars, NULL) && numChars) {
+    WriteFile(out, sbuf, numChars, &written, NULL);
+  }
+  return 0;
+}
+
+static void print_last_error(char* message)
+{
+    LPTSTR* lpBufPtr;
+
+    FormatMessage(
+		  FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+		  NULL,
+		  GetLastError(),
+		  MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+		  (LPTSTR) &lpBufPtr,
+		  0,
+		  NULL);
+    if (message == NULL)
+      printf("%s", lpBufPtr);
+    else
+      printf("%s: %s\n", message, lpBufPtr);
+}