sysdeps/unix/sysv/linux/setrlimit64.c

   1 /* Linux setrlimit64 implementation (64 bits off_t).
   2    Copyright (C) 2010-2024 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 <errno.h>
  20 #include <sys/types.h>
  21 #include <sysdep.h>
  22 #include <shlib-compat.h>
  23
  24 /* Add this redirection so the strong_alias for __RLIM_T_MATCHES_RLIM64_T
  25    linking setrlimit64 to {__}setrlimit does not throw a type error.  */
  26 #undef setrlimit
  27 #undef __setrlimit
  28 #define setrlimit setrlimit_redirect
  29 #define __setrlimit __setrlimit_redirect
  30 #include <sys/resource.h>
  31 #undef setrlimit
  32 #undef __setrlimit
  33
  34 /* Set the soft and hard limits for RESOURCE to *RLIMITS.
  35    Only the super-user can increase hard limits.
  36    Return 0 if successful, -1 if not (and sets errno).  */
  37 int
  38 __setrlimit64 (enum __rlimit_resource resource, const struct rlimit64 *rlimits)
  39 {
  40   return INLINE_SYSCALL_CALL (prlimit64, 0, resource, rlimits, NULL);
  41 }
  42 /* Alpha defines a versioned setrlimit{64}.  */
  43 #ifndef USE_VERSIONED_RLIMIT
  44 weak_alias (__setrlimit64, setrlimit64)
  45 #endif
  46
  47 #if __RLIM_T_MATCHES_RLIM64_T
  48 strong_alias (__setrlimit64, __setrlimit)
  49 # ifndef USE_VERSIONED_RLIMIT
  50 weak_alias (__setrlimit64, setrlimit)
  51 # endif
  52 # ifdef SHARED
  53 __hidden_ver1 (__setrlimit64, __GI___setrlimit, __setrlimit64);
  54 # endif
  55 #endif