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Remove pre-2.4 Linux kernel support.

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This commit is contained in:
Joseph Myers
2012-05-25 19:19:30 +00:00
parent a386f1cc22
commit 21708942c9
39 changed files with 240 additions and 1426 deletions
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88
sysdeps/unix/sysv/linux/i386/msgctl.c
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@@ -1,4 +1,4 @@
/* Copyright (C) 1995,1997,1998,2000,2004,2006 Free Software Foundation, Inc.
/* Copyright (C) 1995-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
@@ -25,7 +25,6 @@
#include <sys/syscall.h>
#include <bp-checks.h>
#include <kernel-features.h>
#include <shlib-compat.h>
struct __old_msqid_ds
@@ -52,14 +51,6 @@ int __old_msgctl (int, int, struct __old_msqid_ds *);
#endif
int __new_msgctl (int, int, struct msqid_ds *);
#ifdef __NR_getuid32
# if __ASSUME_32BITUIDS == 0
/* This variable is shared with all files that need to check for 32bit
uids. */
extern int __libc_missing_32bit_uids;
# endif
#endif
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
int
attribute_compat_text_section
@@ -74,85 +65,8 @@ compat_symbol (libc, __old_msgctl, msgctl, GLIBC_2_0);
int
__new_msgctl (int msqid, int cmd, struct msqid_ds *buf)
{
#if __ASSUME_32BITUIDS > 0
return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
msqid, cmd | __IPC_64, 0, CHECK_1 (buf));
#else
switch (cmd) {
case MSG_STAT:
case IPC_STAT:
case IPC_SET:
break;
default:
return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
msqid, cmd, 0, CHECK_1 (buf));
}
{
int result;
struct __old_msqid_ds old;
#ifdef __NR_getuid32
if (__libc_missing_32bit_uids <= 0)
{
if (__libc_missing_32bit_uids < 0)
{
int save_errno = errno;
/* Test presence of new IPC by testing for getuid32 syscall. */
result = INLINE_SYSCALL (getuid32, 0);
if (result == -1 && errno == ENOSYS)
__libc_missing_32bit_uids = 1;
else
__libc_missing_32bit_uids = 0;
__set_errno(save_errno);
}
if (__libc_missing_32bit_uids <= 0)
{
result = INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
msqid, cmd | __IPC_64, 0, CHECK_1 (buf));
return result;
}
}
#endif
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 (ipc, 5, IPCOP_msgctl,
msqid, cmd, 0, __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
}
versioned_symbol (libc, __new_msgctl, msgctl, GLIBC_2_2);