diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/msgctl.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/msgctl.c | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/msgctl.c b/sysdeps/unix/sysv/linux/alpha/msgctl.c deleted file mode 100644 index a59911fe40..0000000000 --- a/sysdeps/unix/sysv/linux/alpha/msgctl.c +++ /dev/null @@ -1,121 +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 <sys/msg.h> -#include <ipc_priv.h> - -#include <sysdep.h> -#include <string.h> -#include <sys/syscall.h> -#include <bp-checks.h> - -#include <kernel-features.h> - -struct __old_msqid_ds -{ - struct __old_ipc_perm msg_perm; /* structure describing operation permission */ - struct msg *__unbounded __msg_first; /* pointer to first message on queue */ - struct msg *__unbounded __msg_last; /* pointer to last message on queue */ - __time_t msg_stime; /* time of last msgsnd command */ - __time_t msg_rtime; /* time of last msgrcv command */ - __time_t msg_ctime; /* time of last change */ - struct wait_queue *__unbounded __wwait; /* ??? */ - struct wait_queue *__unbounded __rwait; /* ??? */ - unsigned short int __msg_cbytes; /* current number of bytes on queue */ - unsigned short int msg_qnum; /* number of messages currently on queue */ - unsigned short int msg_qbytes; /* max number of bytes allowed on queue */ - __ipc_pid_t msg_lspid; /* pid of last msgsnd() */ - __ipc_pid_t msg_lrpid; /* pid of last msgrcv() */ -}; - -/* Allows to control internal state and destruction of message queue - objects. */ -int __new_msgctl (int, int, struct msqid_ds *); - -int -__new_msgctl (int msqid, int cmd, struct msqid_ds *buf) -{ - /* This is a misnomer -- Alpha had 32-bit uids at the beginning - of time. However, msg_qnum and msg_qbytes changed size at - the same time the size of uid changed elsewhere. */ -#if __ASSUME_32BITUIDS > 0 - return INLINE_SYSCALL (msgctl, 3, msqid, cmd | __IPC_64, CHECK_1 (buf)); -#else - switch (cmd) { - case MSG_STAT: - case IPC_STAT: - case IPC_SET: - break; - default: - return INLINE_SYSCALL (msgctl, 3, msqid, cmd, CHECK_1 (buf)); - } - - { - int save_errno = errno, result; - struct __old_msqid_ds old; - - /* Unfortunately there is no way how to find out for sure whether - we should use old or new msgctl. */ - result = INLINE_SYSCALL (msgctl, 3, msqid, cmd | __IPC_64, CHECK_1 (buf)); - if (result != -1 || errno != EINVAL) - return result; - - __set_errno(save_errno); - if (cmd == IPC_SET) - { - old.msg_perm.uid = buf->msg_perm.uid; - old.msg_perm.gid = buf->msg_perm.gid; - old.msg_perm.mode = buf->msg_perm.mode; - old.msg_qbytes = buf->msg_qbytes; - if (old.msg_perm.uid != buf->msg_perm.uid || - old.msg_perm.gid != buf->msg_perm.gid || - old.msg_qbytes != buf->msg_qbytes) - { - __set_errno (EINVAL); - return -1; - } - } - result = INLINE_SYSCALL (msgctl, 3, msqid, cmd, __ptrvalue (&old)); - if (result != -1 && cmd != IPC_SET) - { - memset(buf, 0, sizeof(*buf)); - buf->msg_perm.__key = old.msg_perm.__key; - buf->msg_perm.uid = old.msg_perm.uid; - buf->msg_perm.gid = old.msg_perm.gid; - buf->msg_perm.cuid = old.msg_perm.cuid; - buf->msg_perm.cgid = old.msg_perm.cgid; - buf->msg_perm.mode = old.msg_perm.mode; - buf->msg_perm.__seq = old.msg_perm.__seq; - buf->msg_stime = old.msg_stime; - buf->msg_rtime = old.msg_rtime; - buf->msg_ctime = old.msg_ctime; - buf->__msg_cbytes = old.__msg_cbytes; - buf->msg_qnum = old.msg_qnum; - buf->msg_qbytes = old.msg_qbytes; - buf->msg_lspid = old.msg_lspid; - buf->msg_lrpid = old.msg_lrpid; - } - return result; - } -#endif -} - -#include <shlib-compat.h> -versioned_symbol (libc, __new_msgctl, msgctl, GLIBC_2_2); |