Function sysctlnametomib

tools/compat/sysctlnametomib.c:45–58

* This function uses a presently undocumented interface to the kernel * to walk the tree and get the type so it can print the value. * This interface is under work and consideration, and should probably * be killed with a big axe by the first person who can find the time. * (be aware though, that the proper interface isn't as obvious as it * may seem, there are various conflicting requirement

 * may seem, there are various conflicting requirements.
 */
int
sysctlnametomib(const char *name, int *mibp, size_t *sizep)
{
	int oid[2];
	int error;

	oid[0] = 0;
	oid[1] = 3;

	*sizep *= sizeof(int);
	error = sysctl(oid, 2, mibp, sizep, name, strlen(name));
	*sizep /= sizeof(int);
	return (error);
}