usr/src/lib/libc/gen/getpagesize.c

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)getpagesize.c       5.2 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <sys/param.h>
#include <sys/sysctl.h>

int
getpagesize()
{
        int mib[2], value;
        size_t size;

        mib[0] = CTL_HW;
        mib[1] = HW_PAGESIZE;
        size = sizeof value;
        if (sysctl(mib, 2, &value, &size, NULL, 0) == -1)
                return (-1);
        return (value);
}