Index: Modules/mmapmodule.c
===================================================================
RCS file: /cvsroot/python/python/dist/src/Modules/mmapmodule.c,v
retrieving revision 2.45
diff -u -r2.45 mmapmodule.c
--- Modules/mmapmodule.c	3 May 2003 09:14:53 -0000	2.45
+++ Modules/mmapmodule.c	14 Jul 2003 19:56:57 -0000
@@ -901,7 +901,8 @@
 	/* on OpenVMS we must ensure that all bytes are written to the file */
 	fsync(fd);
 #  endif
-	if (fstat(fd, &st) == 0 && (size_t)map_size > st.st_size) {
+	if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) &&
+	    (size_t)map_size > st.st_size) {
 		PyErr_SetString(PyExc_ValueError, 
 				"mmap length is greater than file size");
 		return NULL;