Remove *xattr syscalls.
[glibc.git] / sysdeps / unix / sysv / linux / i386 / getrlimit.c
blobf7af9340cb07109647ede23cd86401a28432ccf4
1 /* Copyright (C) 1999, 2000 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
17 02111-1307 USA. */
19 #include <errno.h>
20 #include <sys/resource.h>
22 #include <sysdep.h>
23 #include <sys/syscall.h>
24 #include <shlib-compat.h>
25 #include <bp-checks.h>
27 #include "kernel-features.h"
29 extern int __syscall_ugetrlimit (unsigned int resource,
30 struct rlimit *__unbounded rlimits);
31 extern int __syscall_getrlimit (unsigned int resource,
32 struct rlimit *__unbounded rlimits);
34 extern int __new_getrlimit (enum __rlimit_resource resource,
35 struct rlimit *__unbounded rlimits);
38 /* Linux 2.3.25 introduced a new system call since the types used for
39 the limits are now unsigned. */
40 #if defined __NR_ugetrlimit && !defined __ASSUME_NEW_GETRLIMIT_SYSCALL
41 int __have_no_new_getrlimit;
42 #endif
44 int
45 __new_getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
47 #ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL
48 return INLINE_SYSCALL (ugetrlimit, 2, resource, CHECK_1 (rlimits));
49 #else
50 int result;
52 # ifdef __NR_ugetrlimit
53 if (__have_no_new_getrlimit <= 0)
55 result = INLINE_SYSCALL (ugetrlimit, 2, resource, CHECK_1 (rlimits));
57 /* If the system call is available remember this fact and return. */
58 if (result != -1 || errno != ENOSYS)
60 __have_no_new_getrlimit = -1;
61 return result;
64 /* Remember that the system call is not available. */
65 __have_no_new_getrlimit = 1;
67 # endif
69 /* Fall back to the old system call. */
70 result = INLINE_SYSCALL (getrlimit, 2, resource, CHECK_1 (rlimits));
72 if (result == -1)
73 return result;
75 /* We might have to correct the limits values. Since the old values
76 were signed the infinity value is too small. */
77 if (rlimits->rlim_cur == RLIM_INFINITY >> 1)
78 rlimits->rlim_cur = RLIM_INFINITY;
79 if (rlimits->rlim_max == RLIM_INFINITY >> 1)
80 rlimits->rlim_max = RLIM_INFINITY;
82 return result;
83 #endif
86 weak_alias (__new_getrlimit, __getrlimit);
87 versioned_symbol (libc, __new_getrlimit, getrlimit, GLIBC_2_2);