--- unzip60/extract.c	2023-01-25 07:05:58.742254870 -0500
+++ unzip60.new/extract.c	2023-01-25 07:04:48.073435349 -0500
@@ -2889,7 +2889,7 @@ char *fnfilter(raw, space, size)   /* co
             strcpy( (char *)space, raw);
             return (char *)space;
         }
-        woslen = wcstombs( newraw, wostring, (woslen * MB_CUR_MAX) + 1);
+        woslen = wcstombs( newraw, wostring, woslen + 1);
 
         if (size > 0) {
             slim = space + size - 4;