resource/getrlimit64.c

   1 /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <sys/resource.h>
  20 #include <sys/types.h>
  21
  22 /* Put the soft and hard limits for RESOURCE in *RLIMITS.
  23    Returns 0 if successful, -1 if not (and sets errno).  */
  24 int
  25 __getrlimit64 (enum __rlimit_resource resource, struct rlimit64 *rlimits)
  26 {
  27   struct rlimit rlimits32;
  28
  29   if (__getrlimit (resource, &rlimits32) < 0)
  30     return -1;
  31
  32   if (rlimits32.rlim_cur == RLIM_INFINITY)
  33     rlimits->rlim_cur = RLIM64_INFINITY;
  34   else
  35     rlimits->rlim_cur = rlimits32.rlim_cur;
  36   if (rlimits32.rlim_max == RLIM_INFINITY)
  37     rlimits->rlim_max = RLIM64_INFINITY;
  38   else
  39     rlimits->rlim_max = rlimits32.rlim_max;
  40
  41   return 0;
  42 }
  43 libc_hidden_def (__getrlimit64)
  44 weak_alias (__getrlimit64, getrlimit64)
  45 libc_hidden_weak (getrlimit64)