DSO_convert_filename
char *filename = DSO_convert_filename(dso, NULL);
char *filename = DSO_convert_filename(dso, NULL);
char *filename = DSO_convert_filename(dso, NULL);
char *filename = DSO_convert_filename(dso, NULL);
ctx->DYNAMIC_LIBNAME = DSO_convert_filename(ctx->dynamic_dso, ctx->engine_id);
module_path = allocated_path = DSO_convert_filename(prov->module, prov->name);
char *DSO_convert_filename(DSO *dso, const char *filename);