xasprintf(char **strp, const char *fmt, ...)
{
	int rc = 0;
	va_list args;

	va_start(args, fmt);
	rc = vasprintf(strp, fmt, args);
	va_end(args);
	if ((rc == -1) && strp)
		*strp = NULL;

	return rc;
}
xasprintf(char **strp, const char *fmt, ...)
{
	int rc = 0;
	va_list args;

	va_start(args, fmt);
	rc = vasprintf(strp, fmt, args);
	va_end(args);
	if ((rc == -1) && strp)
		*strp = NULL;

	return rc;
}