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authorUlrich Drepper <drepper@redhat.com>1999-11-06 07:45:31 +0000
committerUlrich Drepper <drepper@redhat.com>1999-11-06 07:45:31 +0000
commit36e7206eacd39519ecb0fa7329cc376f29d1ca2c (patch)
treea29ba082f387a03b86a6128215f243f911f841f5 /sysdeps
parenta9c27b3ee95cbd5a3c81d9999a97e6de7b770b5d (diff)
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Update.
* sysdeps/unix/sysv/linux/setrlimit.c: New file. 1999-10-04 Tim Waugh <twaugh@redhat.com>
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/setrlimit.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/setrlimit.c b/sysdeps/unix/sysv/linux/setrlimit.c
new file mode 100644
index 0000000000..674a2cf8c3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setrlimit.c
@@ -0,0 +1,72 @@
+/* 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/param.h>
+#include <sys/resource.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+#include "../kernel-features.h"
+
+
+/* Linux 2.3.25 introduced a new system call since the types used for
+ the limits are now unsigned. */
+#if !defined __ASSUME_NEW_GETRLIMIT_SYSCALL && defined __NR_ugetrlimit
+static int no_new_getrlimit;
+#else
+# define no_new_getrlimit 0
+#endif
+
+int
+__setrlimit (resource, rlimits)
+ enum __rlimit_resource resource;
+ const struct rlimit *rlimits;
+{
+#ifdef __NR_ugetrlimit
+ if (! no_new_getrlimit)
+ {
+ int result = INLINE_SYSCALL (setrlimit, 2, resource, rlimits);
+
+# ifndef __ASSUME_NEW_GETRLIMIT_SYSCALL
+ /* If the system call is available return. */
+ if (result != -1 || errno != ENOSYS)
+# endif
+ return result;
+
+# ifndef __ASSUME_NEW_GETRLIMIT_SYSCALL
+ /* Remember that the system call is not available. */
+ no_new_getrlimit = 1;
+# endif
+ }
+#endif
+
+#ifndef __ASSUME_NEW_GETRLIMIT_SYSCALL
+ /* We might have to correct the limits values. Since the old values
+ were signed the new values are too large. */
+ rlimits.rlim_cur = MIN ((unsigned long int) rlimits.rlim_cur,
+ RLIM_INFINITY >> 2);
+ rlimits.rlim_max = MIN ((unsigned long int) rlimits.rlim_max,
+ RLIM_INFINITY >> 2);
+
+ /* Fall back on the old system call. */
+ return INLINE_SYSCALL (setrlimit, 2, resource, rlimits);
+#endif
+}
+weak_alias (__setrlimit, setrlimit)