Index: winsup/cygwin/fhandler_disk_file.cc
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/fhandler_disk_file.cc,v
retrieving revision 1.90
diff -u -p -r1.90 fhandler_disk_file.cc
--- winsup/cygwin/fhandler_disk_file.cc	20 Apr 2004 15:51:24 -0000	1.90
+++ winsup/cygwin/fhandler_disk_file.cc	17 May 2004 16:41:30 -0000
@@ -159,6 +159,20 @@ fhandler_base::fstat_by_name (struct __s
int __stdcall
fhandler_base::fstat_fs (struct __stat64 *buf)
{
+  // If this is a Win32 pipe name, don't attempt to open the file
+  if (is_win32_pipe_name (get_win32_name ()))
+  {
+    debug_printf("Circumventing this function for Win32 pipe");
+    buf->st_mode = S_IFCHR | STD_RBITS | STD_WBITS | S_IWGRP | S_IWOTH;
+    buf->st_uid = geteuid32 ();
+    buf->st_gid = getegid32 ();
+    buf->st_nlink = 1;
+    buf->st_blksize = S_BLKSIZE;
+    time_as_timestruc_t (&buf->st_ctim);
+    buf->st_atim = buf->st_mtim = buf->st_ctim;
+    return 0;
+  }
+
   int res = -1;
   int oret;
   int open_flags = O_RDONLY | O_BINARY;
Index: winsup/cygwin/path.cc
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/path.cc,v
retrieving revision 1.312
diff -u -p -r1.312 path.cc
--- winsup/cygwin/path.cc	15 May 2004 15:55:43 -0000	1.312
+++ winsup/cygwin/path.cc	17 May 2004 16:41:44 -0000
@@ -137,6 +137,20 @@ create_shortcut_header (void)
#define isvirtual_dev(devn) \
   (devn == FH_CYGDRIVE || devn == FH_PROC || devn == FH_REGISTRY || devn == 
FH_PROCESS)

+// Win32 pipe names have a prefix that follows the pattern: 
"\\\\[^\\]+\\pipe\\"
+bool
+is_win32_pipe_name (const char * const s)
+{
+  if (strncmp(s, "\\\\", 2))
+    return false;
+  const char * const p = strchr(s + 2, '\\');
+  if (!p || p - s == 2)
+    return false;
+  if (strnicmp(p + 1, "pipe\\", 5))
+    return false;
+  return true;
+}
+
/* Return non-zero if PATH1 is a prefix of PATH2.
    Both are assumed to be of the same path style and / vs \ usage.
    Neither may be "".
@@ -3020,6 +3034,17 @@ symlink_info::check (char *path, const s
   pflags &= ~(PATH_SYMLINK | PATH_LNK);

   case_clash = false;
+
+  // Calling GetFileAttributes on a Win32 pipe path will cause undefined 
behavior.
+  // Since Win32 pipe paths cannot contain symlinks, this function is just 
skipped.
+  if (is_win32_pipe_name (path))
+  {
+    debug_printf("Circumventing this function for Win32 pipe");
+    error = 0;
+    is_symlink = false;
+    fileattr = FILE_ATTRIBUTE_DEVICE;
+    return 0;
+  }

   while (suffix.next ())
     {
Index: winsup/cygwin/path.h
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/path.h,v
retrieving revision 1.65
diff -u -p -r1.65 path.h
--- winsup/cygwin/path.h	11 May 2004 15:39:50 -0000	1.65
+++ winsup/cygwin/path.h	17 May 2004 16:41:45 -0000
@@ -271,6 +271,8 @@ bool fnunmunge (char *, const char *) __

int path_prefix_p (const char *path1, const char *path2, int len1) 
__attribute__ ((regparm (3)));

+bool is_win32_pipe_name (const char * const s);
+
/* FIXME: Move to own include file eventually */

#define MAX_ETC_FILES 2