diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/semctl.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/semctl.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/semctl.c b/sysdeps/unix/sysv/linux/alpha/semctl.c deleted file mode 100644 index 9957f983bf..0000000000 --- a/sysdeps/unix/sysv/linux/alpha/semctl.c +++ /dev/null @@ -1,136 +0,0 @@ -/* Copyright (C) 1995,1997,1998,2000,2003,2006 - Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include <stdarg.h> -#include <sys/sem.h> -#include <ipc_priv.h> - -#include <sysdep.h> -#include <string.h> -#include <sys/syscall.h> - -#include <kernel-features.h> - -struct __old_semid_ds -{ - struct __old_ipc_perm sem_perm; /* operation permission struct */ - __time_t sem_otime; /* last semop() time */ - __time_t sem_ctime; /* last time changed by semctl() */ - struct sem *__sembase; /* ptr to first semaphore in array */ - struct sem_queue *__sem_pending; /* pending operations */ - struct sem_queue *__sem_pending_last; /* last pending operation */ - struct sem_undo *__undo; /* ondo requests on this array */ - unsigned short int sem_nsems; /* number of semaphores in set */ -}; - -/* Define a `union semun' suitable for Linux here. */ -union semun -{ - int val; /* value for SETVAL */ - struct semid_ds *buf; /* buffer for IPC_STAT & IPC_SET */ - unsigned short int *array; /* array for GETALL & SETALL */ - struct seminfo *__buf; /* buffer for IPC_INFO */ -}; - -#include <bp-checks.h> -#include <bp-semctl.h> /* definition of CHECK_SEMCTL needs union semum */ - -/* Return identifier for array of NSEMS semaphores associated with - KEY. */ -int __new_semctl (int semid, int semnum, int cmd, ...); - -int -__new_semctl (int semid, int semnum, int cmd, ...) -{ - union semun arg; - va_list ap; - - va_start (ap, cmd); - - /* Get the argument. */ - arg = va_arg (ap, union semun); - - va_end (ap); - -#if __ASSUME_32BITUIDS > 0 - return INLINE_SYSCALL (semctl, 4, semid, semnum, cmd | __IPC_64, - CHECK_SEMCTL (&arg, semid, cmd | __IPC_64)->array); -#else - switch (cmd) { - case SEM_STAT: - case IPC_STAT: - case IPC_SET: - break; - default: - return INLINE_SYSCALL (semctl, 4, semid, semnum, cmd, - CHECK_SEMCTL (&arg, semid, cmd)->array); - } - - { - int save_errno = errno, result; - struct __old_semid_ds old; - struct semid_ds *buf; - - /* Unfortunately there is no way how to find out for sure whether - we should use old or new semctl. */ - result = INLINE_SYSCALL (semctl, 4, semid, semnum, cmd | __IPC_64, - CHECK_SEMCTL (&arg, semid, cmd | __IPC_64)->array); - if (result != -1 || errno != EINVAL) - return result; - - __set_errno(save_errno); - buf = arg.buf; - arg.buf = (void *)&old; - if (cmd == IPC_SET) - { - old.sem_perm.uid = buf->sem_perm.uid; - old.sem_perm.gid = buf->sem_perm.gid; - old.sem_perm.mode = buf->sem_perm.mode; - if (old.sem_perm.uid != buf->sem_perm.uid || - old.sem_perm.gid != buf->sem_perm.gid) - { - __set_errno (EINVAL); - return -1; - } - } - result = INLINE_SYSCALL (semctl, 4, semid, semnum, cmd, - CHECK_SEMCTL (&arg, semid, cmd)->array); - if (result != -1 && cmd != IPC_SET) - { - memset(buf, 0, sizeof(*buf)); - buf->sem_perm.__key = old.sem_perm.__key; - buf->sem_perm.uid = old.sem_perm.uid; - buf->sem_perm.gid = old.sem_perm.gid; - buf->sem_perm.cuid = old.sem_perm.cuid; - buf->sem_perm.cgid = old.sem_perm.cgid; - buf->sem_perm.mode = old.sem_perm.mode; - buf->sem_perm.__seq = old.sem_perm.__seq; - buf->sem_otime = old.sem_otime; - buf->sem_ctime = old.sem_ctime; - buf->sem_nsems = old.sem_nsems; - } - return result; - } -#endif -} - -#include <shlib-compat.h> -versioned_symbol (libc, __new_semctl, semctl, GLIBC_2_2); |