2205e0d1bd
The core kernel part is patch file utimes.2008.4.diff from pluknet@FreeBSD.org. I updated the code for API changes, added the manual page and added compatibility code for old kernels. There is also audit and Capsicum support. A new UTIME_* constant might allow setting birthtimes in future. Differential Revision: https://reviews.freebsd.org/D1426 Submitted by: pluknet (partially) Reviewed by: delphij, pluknet, rwatson Relnotes: yes
376 lines
11 KiB
C
376 lines
11 KiB
C
/*
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* Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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* Private definitions for libc, libc_r and libpthread.
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*
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*/
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#ifndef _LIBC_PRIVATE_H_
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#define _LIBC_PRIVATE_H_
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#include <sys/_types.h>
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#include <sys/_pthreadtypes.h>
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/*
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* This global flag is non-zero when a process has created one
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* or more threads. It is used to avoid calling locking functions
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* when they are not required.
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*/
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extern int __isthreaded;
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/*
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* Elf_Auxinfo *__elf_aux_vector, the pointer to the ELF aux vector
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* provided by kernel. Either set for us by rtld, or found at runtime
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* on stack for static binaries.
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*
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* Type is void to avoid polluting whole libc with ELF types.
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*/
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extern void *__elf_aux_vector;
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/*
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* libc should use libc_dlopen internally, which respects a global
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* flag where loading of new shared objects can be restricted.
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*/
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void *libc_dlopen(const char *, int);
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/*
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* For dynamic linker.
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*/
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void _rtld_error(const char *fmt, ...);
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/*
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* File lock contention is difficult to diagnose without knowing
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* where locks were set. Allow a debug library to be built which
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* records the source file and line number of each lock call.
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*/
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#ifdef _FLOCK_DEBUG
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#define _FLOCKFILE(x) _flockfile_debug(x, __FILE__, __LINE__)
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#else
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#define _FLOCKFILE(x) _flockfile(x)
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#endif
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/*
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* Macros for locking and unlocking FILEs. These test if the
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* process is threaded to avoid locking when not required.
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*/
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#define FLOCKFILE(fp) if (__isthreaded) _FLOCKFILE(fp)
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#define FUNLOCKFILE(fp) if (__isthreaded) _funlockfile(fp)
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struct _spinlock;
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extern struct _spinlock __stdio_thread_lock __hidden;
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#define STDIO_THREAD_LOCK() \
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do { \
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if (__isthreaded) \
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_SPINLOCK(&__stdio_thread_lock); \
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} while (0)
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#define STDIO_THREAD_UNLOCK() \
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do { \
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if (__isthreaded) \
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_SPINUNLOCK(&__stdio_thread_lock); \
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} while (0)
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/*
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* Indexes into the pthread jump table.
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*
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* Warning! If you change this type, you must also change the threads
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* libraries that reference it (libc_r, libpthread).
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*/
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typedef enum {
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PJT_ATFORK,
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PJT_ATTR_DESTROY,
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PJT_ATTR_GETDETACHSTATE,
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PJT_ATTR_GETGUARDSIZE,
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PJT_ATTR_GETINHERITSCHED,
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PJT_ATTR_GETSCHEDPARAM,
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PJT_ATTR_GETSCHEDPOLICY,
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PJT_ATTR_GETSCOPE,
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PJT_ATTR_GETSTACKADDR,
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PJT_ATTR_GETSTACKSIZE,
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PJT_ATTR_INIT,
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PJT_ATTR_SETDETACHSTATE,
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PJT_ATTR_SETGUARDSIZE,
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PJT_ATTR_SETINHERITSCHED,
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PJT_ATTR_SETSCHEDPARAM,
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PJT_ATTR_SETSCHEDPOLICY,
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PJT_ATTR_SETSCOPE,
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PJT_ATTR_SETSTACKADDR,
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PJT_ATTR_SETSTACKSIZE,
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PJT_CANCEL,
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PJT_CLEANUP_POP,
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PJT_CLEANUP_PUSH,
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PJT_COND_BROADCAST,
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PJT_COND_DESTROY,
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PJT_COND_INIT,
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PJT_COND_SIGNAL,
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PJT_COND_TIMEDWAIT,
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PJT_COND_WAIT,
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PJT_DETACH,
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PJT_EQUAL,
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PJT_EXIT,
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PJT_GETSPECIFIC,
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PJT_JOIN,
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PJT_KEY_CREATE,
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PJT_KEY_DELETE,
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PJT_KILL,
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PJT_MAIN_NP,
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PJT_MUTEXATTR_DESTROY,
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PJT_MUTEXATTR_INIT,
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PJT_MUTEXATTR_SETTYPE,
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PJT_MUTEX_DESTROY,
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PJT_MUTEX_INIT,
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PJT_MUTEX_LOCK,
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PJT_MUTEX_TRYLOCK,
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PJT_MUTEX_UNLOCK,
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PJT_ONCE,
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PJT_RWLOCK_DESTROY,
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PJT_RWLOCK_INIT,
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PJT_RWLOCK_RDLOCK,
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PJT_RWLOCK_TRYRDLOCK,
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PJT_RWLOCK_TRYWRLOCK,
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PJT_RWLOCK_UNLOCK,
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PJT_RWLOCK_WRLOCK,
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PJT_SELF,
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PJT_SETCANCELSTATE,
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PJT_SETCANCELTYPE,
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PJT_SETSPECIFIC,
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PJT_SIGMASK,
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PJT_TESTCANCEL,
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PJT_CLEANUP_POP_IMP,
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PJT_CLEANUP_PUSH_IMP,
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PJT_CANCEL_ENTER,
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PJT_CANCEL_LEAVE,
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PJT_MAX
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} pjt_index_t;
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typedef int (*pthread_func_t)(void);
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typedef pthread_func_t pthread_func_entry_t[2];
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extern pthread_func_entry_t __thr_jtable[];
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void __set_error_selector(int *(*arg)(void));
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int _pthread_mutex_init_calloc_cb_stub(pthread_mutex_t *mutex,
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void *(calloc_cb)(__size_t, __size_t));
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typedef int (*interpos_func_t)(void);
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interpos_func_t *__libc_interposing_slot(int interposno);
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extern interpos_func_t __libc_interposing[] __hidden;
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enum {
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INTERPOS_accept,
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INTERPOS_accept4,
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INTERPOS_aio_suspend,
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INTERPOS_close,
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INTERPOS_connect,
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INTERPOS_fcntl,
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INTERPOS_fsync,
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INTERPOS_fork,
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INTERPOS_msync,
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INTERPOS_nanosleep,
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INTERPOS_openat,
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INTERPOS_poll,
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INTERPOS_pselect,
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INTERPOS_recvfrom,
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INTERPOS_recvmsg,
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INTERPOS_select,
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INTERPOS_sendmsg,
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INTERPOS_sendto,
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INTERPOS_setcontext,
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INTERPOS_sigaction,
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INTERPOS_sigprocmask,
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INTERPOS_sigsuspend,
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INTERPOS_sigwait,
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INTERPOS_sigtimedwait,
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INTERPOS_sigwaitinfo,
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INTERPOS_swapcontext,
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INTERPOS_system,
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INTERPOS_tcdrain,
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INTERPOS_read,
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INTERPOS_readv,
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INTERPOS_wait4,
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INTERPOS_write,
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INTERPOS_writev,
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INTERPOS__pthread_mutex_init_calloc_cb,
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INTERPOS_MAX
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};
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/*
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* yplib internal interfaces
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*/
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#ifdef YP
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int _yp_check(char **);
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#endif
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/*
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* Initialise TLS for static programs
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*/
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void _init_tls(void);
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/*
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* Provides pthread_once()-like functionality for both single-threaded
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* and multi-threaded applications.
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*/
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int _once(pthread_once_t *, void (*)(void));
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/*
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* Set the TLS thread pointer
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*/
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void _set_tp(void *tp);
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/*
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* This is a pointer in the C run-time startup code. It is used
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* by getprogname() and setprogname().
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*/
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extern const char *__progname;
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/*
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* This function is used by the threading libraries to notify malloc that a
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* thread is exiting.
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*/
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void _malloc_thread_cleanup(void);
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/*
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* These functions are used by the threading libraries in order to protect
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* malloc across fork().
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*/
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void _malloc_prefork(void);
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void _malloc_postfork(void);
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void _malloc_first_thread(void);
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/*
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* Function to clean up streams, called from abort() and exit().
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*/
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void (*__cleanup)(void) __hidden;
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/*
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* Get kern.osreldate to detect ABI revisions. Explicitly
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* ignores value of $OSVERSION and caches result. Prototypes
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* for the wrapped "new" pad-less syscalls are here for now.
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*/
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int __getosreldate(void);
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#include <sys/_types.h>
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#include <sys/_sigset.h>
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/* With pad */
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__off_t __sys_freebsd6_lseek(int, int, __off_t, int);
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int __sys_freebsd6_ftruncate(int, int, __off_t);
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int __sys_freebsd6_truncate(const char *, int, __off_t);
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__ssize_t __sys_freebsd6_pread(int, void *, __size_t, int, __off_t);
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__ssize_t __sys_freebsd6_pwrite(int, const void *, __size_t, int, __off_t);
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void * __sys_freebsd6_mmap(void *, __size_t, int, int, int, int, __off_t);
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struct aiocb;
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struct fd_set;
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struct iovec;
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struct msghdr;
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struct pollfd;
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struct rusage;
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struct sigaction;
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struct sockaddr;
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struct timespec;
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struct timeval;
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struct timezone;
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struct __siginfo;
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struct __ucontext;
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int __sys_aio_suspend(const struct aiocb * const[], int,
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const struct timespec *);
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int __sys_accept(int, struct sockaddr *, __socklen_t *);
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int __sys_accept4(int, struct sockaddr *, __socklen_t *, int);
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int __sys_clock_gettime(__clockid_t, struct timespec *ts);
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int __sys_close(int);
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int __sys_connect(int, const struct sockaddr *, __socklen_t);
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int __sys_fcntl(int, int, ...);
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int __sys_fsync(int);
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__pid_t __sys_fork(void);
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int __sys_ftruncate(int, __off_t);
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int __sys_gettimeofday(struct timeval *, struct timezone *);
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__off_t __sys_lseek(int, __off_t, int);
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void *__sys_mmap(void *, __size_t, int, int, int, __off_t);
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int __sys_msync(void *, __size_t, int);
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int __sys_nanosleep(const struct timespec *, struct timespec *);
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int __sys_open(const char *, int, ...);
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int __sys_openat(int, const char *, int, ...);
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int __sys_pselect(int, struct fd_set *, struct fd_set *,
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struct fd_set *, const struct timespec *,
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const __sigset_t *);
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int __sys_poll(struct pollfd *, unsigned, int);
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__ssize_t __sys_pread(int, void *, __size_t, __off_t);
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__ssize_t __sys_pwrite(int, const void *, __size_t, __off_t);
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__ssize_t __sys_read(int, void *, __size_t);
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__ssize_t __sys_readv(int, const struct iovec *, int);
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__ssize_t __sys_recv(int, void *, __size_t, int);
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__ssize_t __sys_recvfrom(int, void *, __size_t, int, struct sockaddr *,
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__socklen_t *);
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__ssize_t __sys_recvmsg(int, struct msghdr *, int);
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int __sys_select(int, struct fd_set *, struct fd_set *,
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struct fd_set *, struct timeval *);
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__ssize_t __sys_sendmsg(int, const struct msghdr *, int);
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__ssize_t __sys_sendto(int, const void *, __size_t, int,
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const struct sockaddr *, __socklen_t);
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int __sys_setcontext(const struct __ucontext *);
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int __sys_sigaction(int, const struct sigaction *,
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struct sigaction *);
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int __sys_sigprocmask(int, const __sigset_t *, __sigset_t *);
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int __sys_sigsuspend(const __sigset_t *);
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int __sys_sigtimedwait(const __sigset_t *, struct __siginfo *,
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const struct timespec *);
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int __sys_sigwait(const __sigset_t *, int *);
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int __sys_sigwaitinfo(const __sigset_t *, struct __siginfo *);
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int __sys_swapcontext(struct __ucontext *,
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const struct __ucontext *);
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int __sys_thr_kill(long, int);
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int __sys_thr_self(long *);
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int __sys_truncate(const char *, __off_t);
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__pid_t __sys_wait4(__pid_t, int *, int, struct rusage *);
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__ssize_t __sys_write(int, const void *, __size_t);
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__ssize_t __sys_writev(int, const struct iovec *, int);
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int __libc_sigwait(const __sigset_t * __restrict,
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int * restrict sig);
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int __libc_system(const char *);
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int __libc_tcdrain(int);
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int __fcntl_compat(int fd, int cmd, ...);
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int __sys_futimens(int fd, const struct timespec *times) __hidden;
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int __sys_utimensat(int fd, const char *path,
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const struct timespec *times, int flag) __hidden;
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/* execve() with PATH processing to implement posix_spawnp() */
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int _execvpe(const char *, char * const *, char * const *);
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int _elf_aux_info(int aux, void *buf, int buflen);
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struct dl_phdr_info;
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int __elf_phdr_match_addr(struct dl_phdr_info *, void *);
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void __init_elf_aux_vector(void);
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void _pthread_cancel_enter(int);
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void _pthread_cancel_leave(int);
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#endif /* _LIBC_PRIVATE_H_ */
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