Function error

tests/licensedcode/data/perf/udll.cxx:160–184

Set and get the error string for use by dlerror */

/* Set and get the error string for use by dlerror */
static const char *error(int setget, const char *str, ...)
{
  static char errstr[ERR_STR_LEN];
  static int err_filled = 0;
  const char *retval;
  va_list arg;
  if (setget == 0)
  {
    va_start(arg, str);
    strncpy(errstr, "dlsimple: ", ERR_STR_LEN);
    vsnprintf(errstr + 10, ERR_STR_LEN - 10, str, arg);
    va_end(arg);
    err_filled = 1;
    retval = NULL;
  }
  else
  {
    if (!err_filled)
      retval = NULL;
    else
      retval = errstr;
    err_filled = 0;
  }
  return retval;
}

/* dlopen */
static void *dlopen(const char *path, int mode)