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Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/getrlimit.c')
-rw-r--r--sysdeps/unix/sysv/linux/i386/getrlimit.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/getrlimit.c b/sysdeps/unix/sysv/linux/i386/getrlimit.c
new file mode 100644
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+++ b/sysdeps/unix/sysv/linux/i386/getrlimit.c
@@ -0,0 +1,84 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <sys/resource.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "kernel-features.h"
+
+extern int __syscall_ugetrlimit (unsigned int resource,
+ struct rlimit *rlimits);
+extern int __syscall_getrlimit (unsigned int resource, struct rlimit *rlimits);
+
+/* Linux 2.3.25 introduced a new system call since the types used for
+ the limits are now unsigned. */
+#if defined __NR_ugetrlimit && !defined __ASSUME_NEW_GETRLIMIT_SYSCALL
+int __have_no_new_getrlimit;
+#endif
+
+int
+__new_getrlimit (enum __rlimit_resource resource, struct rlimit *rlimits)
+{
+#ifdef __ASSUME_NEW_GETRLIMIT_SYSCALL
+ return INLINE_SYSCALL (ugetrlimit, 2, resource, rlimits);
+#else
+ int result;
+
+# ifdef __NR_ugetrlimit
+ if (__have_no_new_getrlimit <= 0)
+ {
+ result = INLINE_SYSCALL (ugetrlimit, 2, resource, rlimits);
+
+ /* If the system call is available remember this fact and return. */
+ if (result != -1 || errno != ENOSYS)
+ {
+ __have_no_new_getrlimit = -1;
+ return result;
+ }
+
+ /* Remember that the system call is not available. */
+ __have_no_new_getrlimit = 1;
+ }
+# endif
+
+ /* Fall back to the old system call. */
+ result = INLINE_SYSCALL (getrlimit, 2, resource, rlimits);
+
+ if (result == -1)
+ return result;
+
+ /* We might have to correct the limits values. Since the old values
+ were signed the infinity value is too small. */
+ if (rlimits->rlim_cur == RLIM_INFINITY >> 1)
+ rlimits->rlim_cur = RLIM_INFINITY;
+ if (rlimits->rlim_max == RLIM_INFINITY >> 1)
+ rlimits->rlim_max = RLIM_INFINITY;
+
+ return result;
+#endif
+}
+
+weak_alias (__new_getrlimit, __getrlimit);
+#if defined PIC && DO_VERSIONING
+default_symbol_version (__new_getrlimit, getrlimit, GLIBC_2.1.3);
+#else
+weak_alias (__new_getrlimit, getrlimit);
+#endif