XS(_wrap_c_function) {
  {
    BOW_USHORT arg1 ;
    BOW_UCHAR *arg2 = (BOW_UCHAR *) 0 ;
    unsigned short val1 ;
    int ecode1 = 0 ;
    int res2 ;
    char *buf2 = 0 ;
    int alloc2 = 0 ;
    int argvi = 0;
    BOW_SHORT result;
    dXSARGS;
    
    ... a bunch of code to validate parameters ...
    result = c_function(arg1,arg2);
    ... a bunch of code to handle return ...
  }
}