enc->filename = PL_strdup(filename);
enc->filename = nsCRT::strdup(filename);
MimeUUEncoderInit (char *filename,					int (*output_fn) (const char *, PRInt32, void *),					void *closure){  MimeEncoderData *enc = mime_encoder_init (mime_uuencode, output_fn, closure);    if (filename)	  enc->filename = PL_strdup(filename);	    return enc;}