diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sysctl.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sysctl.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/sysctl.c b/sysdeps/unix/sysv/linux/sysctl.c index b131820a30..d2f5170a8e 100644 --- a/sysdeps/unix/sysv/linux/sysctl.c +++ b/sysdeps/unix/sysv/linux/sysctl.c @@ -1,5 +1,5 @@ /* Read or write system information. Linux version. - Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998, 1999, 2000 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 @@ -22,13 +22,15 @@ #include <sysdep.h> #include <sys/syscall.h> +#include <bp-checks.h> -extern int __syscall__sysctl (struct __sysctl_args *args); +extern int __syscall__sysctl (struct __sysctl_args *__unbounded args); int __sysctl (int *name, int nlen, void *oldval, size_t *oldlenp, void *newval, size_t newlen) { + /* GKM FIXME: force __sysctl_args decl to have unbounded pointers. */ struct __sysctl_args args = { name: name, @@ -38,7 +40,10 @@ __sysctl (int *name, int nlen, void *oldval, size_t *oldlenp, newval: newval, newlen: newlen }; + CHECK_N (name, nlen); + CHECK_N (oldval, *oldlenp); + CHECK_N (newval, newlen); - return INLINE_SYSCALL (_sysctl, 1, &args); + return INLINE_SYSCALL (_sysctl, 1, __ptrvalue (&args)); } weak_alias (__sysctl, sysctl) |