Hi, I suppose Bill will give some more insight into this cause it's only win related.
I came into edge case where utf8_to_unicode_path fails for apr_stat on NT pipes. NT pipes have maximum name length of 256 chars, and utf8_to_unicode_path starts mangling paths longer then 248 chars. code from file_io/win32/open.c : if (srcremains > 248) { ... else if ((srcstr[0] == '/' || srcstr[0] == '\\') && (srcstr[1] == '/' || srcstr[1] == '\\') && (srcstr[2] != '?')) { ... wcscpy (retstr, L"\\\\?\\UNC\\"); Now this will for pipe names that always start with '\\.\pipe\' or '\\server\pipe\' and are longer then 248 chars produce something like \\?\UNC\.\pipe\... leading to ERROR_PATH_NOT_FOUND. Further more GetFileAttributesW in apr_stat blocks for 30+ seconds leading to potential DoS attack. The solution is to add "&& (srcstr[2] != '.')" to the upper check, but dunno if that would break something else Comments? Regards -- ^TM