1 /* Copyright (C) 1991,1992,1994-1998,2001,2005 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 #include <sys/resource.h>
29 /* Function depends on CMD:
30 1 = Return the limit on the size of a file, in units of 512 bytes.
31 2 = Set the limit on the size of a file to NEWLIMIT. Only the
32 super-user can increase the limit.
33 3 = Return the maximum possible address of the data segment.
34 4 = Return the maximum number of files that the calling process
36 Returns -1 on errors. */
49 /* Get limit on file size. */
50 if (getrlimit (RLIMIT_FSIZE, &limit) == 0)
51 /* Convert from bytes to 512 byte units. */
52 result = limit.rlim_cur / 512;
56 /* Set limit on file size. */
58 long int newlimit = va_arg (va, long int);
60 if ((rlim_t) newlimit > RLIM_INFINITY / 512)
62 limit.rlim_cur = RLIM_INFINITY;
63 limit.rlim_max = RLIM_INFINITY;
67 limit.rlim_cur = newlimit * 512;
68 limit.rlim_max = newlimit * 512;
71 result = setrlimit (RLIMIT_FSIZE, &limit);
76 /* Get maximum address for `brk'. */
77 if (getrlimit (RLIMIT_DATA, &limit) == 0)
78 result = ((long int) &_etext) + limit.rlim_cur;
82 result = sysconf (_SC_OPEN_MAX);