1  /* Linux setrlimit implementation (32 bits off_t).
       2     Copyright (C) 2016-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library.  If not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <sys/resource.h>
      20  #include <sysdep.h>
      21  #include <shlib-compat.h>
      22  
      23  #if !__RLIM_T_MATCHES_RLIM64_T
      24  
      25  /* The compatibility symbol is meant to match the old __NR_getrlimit syscall
      26     (with broken RLIM_INFINITY definition).  It should be provided iff
      27     __NR_getrlimit and __NR_ugetrlimit are both defined.  */
      28  # ifndef __NR_ugetrlimit
      29  #  undef SHLIB_COMPAT
      30  #  define SHLIB_COMPAT(a, b, c) 0
      31  # endif
      32  
      33  int
      34  __setrlimit (enum __rlimit_resource resource, const struct rlimit *rlim)
      35  {
      36    struct rlimit64 rlim64;
      37  
      38    if (rlim->rlim_cur == RLIM_INFINITY)
      39      rlim64.rlim_cur = RLIM64_INFINITY;
      40    else
      41      rlim64.rlim_cur = rlim->rlim_cur;
      42    if (rlim->rlim_max == RLIM_INFINITY)
      43      rlim64.rlim_max = RLIM64_INFINITY;
      44    else
      45      rlim64.rlim_max = rlim->rlim_max;
      46  
      47    return INLINE_SYSCALL_CALL (prlimit64, 0, resource, &rlim64, NULL);
      48  }
      49  
      50  libc_hidden_def (__setrlimit)
      51  # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
      52  strong_alias (__setrlimit, __setrlimit_1)
      53  compat_symbol (libc, __setrlimit, setrlimit, GLIBC_2_0);
      54  versioned_symbol (libc, __setrlimit_1, setrlimit, GLIBC_2_2);
      55  # else
      56  weak_alias (__setrlimit, setrlimit)
      57  # endif
      58  
      59  #endif /* __RLIM_T_MATCHES_RLIM64_T  */