usr/src/lib/libbc/libc/compat/4.1/vlimit.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1990 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 /*
  30  * (Almost) backwards compatible vlimit.
  31  */
  32 #include <sys/time.h>
  33 #include <sys/resource.h>
  34 #include <errno.h>
  35
  36 /* LIM_NORAISE is not emulated */
  37 #define LIM_NORAISE     0       /* if <> 0, can't raise limits */
  38 #define LIM_CPU         1       /* max secs cpu time */
  39 #define LIM_FSIZE       2       /* max size of file created */
  40 #define LIM_DATA        3       /* max growth of data space */
  41 #define LIM_STACK       4       /* max growth of stack */
  42 #define LIM_CORE        5       /* max size of ``core'' file */
  43 #define LIM_MAXRSS      6       /* max desired data+stack core usage */
  44
  45 #define NLIMITS         6
  46
  47 int
  48 vlimit(int limit, int value)
  49 {
  50         struct rlimit rlim;
  51
  52         if (limit <= 0 || limit > NLIMITS)
  53                 return (EINVAL);
  54         if (value == -1) {
  55                 if (getrlimit(limit - 1, &rlim) < 0)
  56                         return (-1);
  57                 return (rlim.rlim_cur);
  58         }
  59         rlim.rlim_cur = value;
  60         rlim.rlim_max = RLIM_INFINITY;
  61         return (setrlimit(limit - 1, &rlim));
  62 }