| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * _sysctl() for uClibc |
| 4 | * |
| 5 | * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> |
| 6 | * |
| 7 | * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| 8 | */ |
| 9 | |
| 10 | #include <sys/syscall.h> |
| 11 | #if defined __NR__sysctl && (defined __USE_GNU || defined __USE_BSD) |
| 12 | |
| 13 | /* psm: including sys/sysctl.h would depend on kernel headers */ |
| 14 | struct __sysctl_args { |
| 15 | int *name; |
| 16 | int nlen; |
| 17 | void *oldval; |
| 18 | size_t *oldlenp; |
| 19 | void *newval; |
| 20 | size_t newlen; |
| 21 | unsigned long __unused[4]; |
| 22 | }; |
| 23 | extern int sysctl (int *__name, int __nlen, void *__oldval, |
| 24 | size_t *__oldlenp, void *__newval, size_t __newlen) __THROW; |
| 25 | int sysctl(int *name, int nlen, void *oldval, size_t * oldlenp, |
| 26 | void *newval, size_t newlen) |
| 27 | { |
| 28 | /* avoid initializing on the stack as gcc will call memset() */ |
| 29 | struct __sysctl_args args; |
| 30 | args.name = name; |
| 31 | args.nlen = nlen; |
| 32 | args.oldval = oldval; |
| 33 | args.oldlenp = oldlenp; |
| 34 | args.newval = newval; |
| 35 | args.newlen = newlen; |
| 36 | return INLINE_SYSCALL(_sysctl, 1, &args); |
| 37 | } |
| 38 | #endif |