* autoload.cc (WNetGetResourceParentA): Import.

(WNetOpenEnumA): Import.
	(WNetEnumResourceA): Import.
	(WNetCloseEnum): Import.
	* fhandler.h (fhandler_netdrive::telldir): Add declaration.
	(fhandler_netdrive::seekdir): Ditto.
	(fhandler_netdrive::closedir): Ditto.
	* fhandler_netdrive.cc: Drop explicit including windows.h.  Include
	winnetwk.h instead of shlwapi.h.  Include dirent.h.
	(fhandler_netdrive::readdir): Implement.
	(fhandler_netdrive::telldir): New method.
	(fhandler_netdrive::seekdir): New method.
	(fhandler_netdrive::closedir): Ditto.

winsup/cygwin/fhandler_netdrive.cc

@@ -8,7 +8,6 @@ This software is a copyrighted work licensed under the terms of the
 Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
 details. */
 
-#include <windows.h>
 #include "winsup.h"
 #include <unistd.h>
 #include <stdlib.h>
@@ -20,7 +19,9 @@ details. */
 #include "dtable.h"
 #include "cygheap.h"
 #include <assert.h>
-#include <shlwapi.h>
+#include <winnetwk.h>
+
+#include <dirent.h>
 
 /* Returns 0 if path doesn't exist, >0 if path is a directory,
    -1 if path is a file, -2 if it's a symlink.  */
@@ -70,9 +71,106 @@ fhandler_netdrive::fstat (struct __stat64 *buf)
 }
 
 struct dirent *
-fhandler_netdrive::readdir (DIR * dir)
+fhandler_netdrive::readdir (DIR *dir)
 {
-  return NULL;
+  DWORD size;
+  NETRESOURCE *nro;
+  DWORD ret;
+
+  if (!dir->__d_position)
+    {
+      size_t len = strlen (get_name ());
+      char *namebuf, *dummy;
+      NETRESOURCE nr = { 0 }, *nro2;
+
+      if (len == 2)	/* // */
+        {
+	  namebuf = (char *) alloca (MAX_COMPUTERNAME_LENGTH + 3);
+	  strcpy (namebuf, "\\\\");
+	  size = MAX_COMPUTERNAME_LENGTH + 1;
+	  if (!GetComputerName (namebuf + 2, &size))
+	    {
+	      __seterrno ();
+	      return NULL;
+	    }
+	}
+      else
+        {
+	  const char *from;
+	  char *to;
+	  namebuf = (char *) alloca (len + 1);
+	  for (to = namebuf, from = get_name (); *from; to++, from++)
+	    *to = (*from == '/') ? '\\' : *from;
+	  *to = '\0';
+	}
+
+      nr.lpRemoteName = namebuf;
+      nr.dwType = RESOURCETYPE_DISK;
+      size = 4096;
+      nro = (NETRESOURCE *) alloca (size);
+      ret = WNetGetResourceInformation (&nr, nro, &size, &dummy);
+      if (ret != NO_ERROR)
+	{
+	  __seterrno ();
+	  return NULL;
+	}
+
+      if (len == 2)
+        {
+	  nro2 = nro;
+	  size = 4096;
+	  nro = (NETRESOURCE *) alloca (size);
+	  ret = WNetGetResourceParent (nro2, nro, &size);
+	  if (ret != NO_ERROR)
+	    {
+	      __seterrno ();
+	      return NULL;
+	    }
+	}
+      ret = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_DISK, 0,
+      			 nro, &dir->__handle);
+      if (ret != NO_ERROR)
+	{
+	  __seterrno ();
+	  dir->__handle = INVALID_HANDLE_VALUE;
+	  return NULL;
+	}
+    }
+  /* FIXME: dot and dot_dot handling */
+  DWORD cnt = 1;
+  size = 16384;	/* As documented in MSDN. */
+  nro = (NETRESOURCE *) alloca (size);
+  ret = WNetEnumResource (dir->__handle, &cnt, nro, &size);
+  if (ret != NO_ERROR)
+    {
+      if (ret != ERROR_NO_MORE_ITEMS)
+	__seterrno ();
+      return NULL;
+    }
+  dir->__d_position++;
+  char *bs = strrchr (nro->lpRemoteName, '\\');
+  strcpy (dir->__d_dirent->d_name, bs ? bs + 1 : nro->lpRemoteName);
+  return dir->__d_dirent;
+}
+
+_off64_t
+fhandler_netdrive::telldir (DIR *dir)
+{
+  return -1;
+}
+
+void
+fhandler_netdrive::seekdir (DIR *, _off64_t)
+{
+}
+
+int
+fhandler_netdrive::closedir (DIR *dir)
+{
+  if (dir->__handle != INVALID_HANDLE_VALUE)
+    WNetCloseEnum (dir->__handle);
+  dir->__handle = INVALID_HANDLE_VALUE;
+  return fhandler_virtual::closedir (dir);
 }
 
 int