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authorJoseph Myers <joseph@codesourcery.com>2012-05-25 19:19:30 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-05-25 19:19:30 +0000
commit21708942c9b115a91dc03318a5f9e14328c5a71e (patch)
treee0b3797820e23ab73ebdab3c34d20943e911669b /sysdeps/unix/sysv/linux/i386/msgctl.c
parenta386f1cc229e7de02740bef18bdd5d272d1e7537 (diff)
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Remove pre-2.4 Linux kernel support.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/msgctl.c')
-rw-r--r--sysdeps/unix/sysv/linux/i386/msgctl.c88
1 files changed, 1 insertions, 87 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/msgctl.c b/sysdeps/unix/sysv/linux/i386/msgctl.c
index fa5a82fa38..2125ae192c 100644
--- a/sysdeps/unix/sysv/linux/i386/msgctl.c
+++ b/sysdeps/unix/sysv/linux/i386/msgctl.c
@@ -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);