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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
* $Id: sysctlbyname.c,v 1.1 1997/05/30 20:53:13 phk Exp $
*
*/
#include <sys/types.h>
#include <sys/sysctl.h>
int
sysctlbyname(const char *name, void *oldp, size_t *oldlenp, void *newp,
size_t newlen)
{
int name2oid_oid[2];
int real_oid[CTL_MAXNAME+2];
int error, oidlen;
name2oid_oid[0] = 0; /* This is magic & undocumented! */
name2oid_oid[1] = 3;
oidlen = sizeof(real_oid);
error = sysctl(name2oid_oid, 2, real_oid, &oidlen, (void *)name,
strlen(name));
if (error < 0)
return error;
oidlen /= sizeof (int);
error = sysctl(real_oid, oidlen, oldp, oldlenp, newp, newlen);
return (error);
}
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