From 19639f41391c71c705b20cbb8fb10657432ac54b Mon Sep 17 00:00:00 2001
From: Christopher Faylor <me@cgf.cx>
Date: Fri, 5 Oct 2001 15:05:07 +0000
Subject: [PATCH] * path.cc (getcwd): Allow NULL first argument.

---
 winsup/cygwin/ChangeLog | 4 ++++
 winsup/cygwin/path.cc   | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index a6ee4c4d5..1bad769da 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+Fri Oct  5 11:05:32 2001  Christopher Faylor <cgf@cygnus.com>
+
+	* path.cc (getcwd): Allow NULL first argument.
+
 Fri Oct  5 00:31:35 2001  Christopher Faylor <cgf@cygnus.com>
 
 	* heap.h (inheap): Check for NULL.
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index cc9d647dd..25d086fbf 100644
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -3011,7 +3011,7 @@ getcwd (char *buf, size_t ulen)
   char* res = NULL;
   if (ulen == 0)
     set_errno (EINVAL);
-  else if (!__check_null_invalid_struct_errno (buf, ulen))
+  else if (buf == NULL || !__check_null_invalid_struct_errno (buf, ulen))
     res = cygheap->cwd.get (buf, 1, 1, ulen);
   return res;
 }