/*      $NetBSD: ulimit.c,v 1.3 2008/04/28 20:22:59 martin Exp $        */

/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Klaus Klein.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: ulimit.c,v 1.3 2008/04/28 20:22:59 martin Exp $");
#endif /* LIBC_SCCS and not lint */

#include <sys/resource.h>
#include <errno.h>
#include <stdarg.h>
#include <ulimit.h>

long int
ulimit(int cmd, ...)
{
       va_list ap;
       struct rlimit rlimit;
       long int new_limit, result;

       va_start(ap, cmd);

       result = -1L;
       switch (cmd) {
       case UL_GETFSIZE:
               if (getrlimit(RLIMIT_FSIZE, &rlimit) == 0)
                       result = (long int)(rlimit.rlim_cur / 512);
               break;
       case UL_SETFSIZE:
               new_limit = va_arg(ap, long int);
               rlimit.rlim_cur = rlimit.rlim_max = (rlim_t)new_limit * 512;
               if (setrlimit(RLIMIT_FSIZE, &rlimit) == 0)
                       result = new_limit;
               break;
       default:
               errno = EINVAL;
       }

       va_end(ap);

       return (result);
}