about summary refs log tree commit diff
path: root/REORG.TODO/sysdeps/unix/sysv/linux/xmknod.c
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/xmknod.c')
-rw-r--r--REORG.TODO/sysdeps/unix/sysv/linux/xmknod.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/xmknod.c b/REORG.TODO/sysdeps/unix/sysv/linux/xmknod.c
new file mode 100644
index 0000000000..61d12e5db1
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/xmknod.c
@@ -0,0 +1,47 @@
+/* xmknod call using old-style Unix mknod system call.
+   Copyright (C) 1991-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+/* Create a device file named PATH, with permission and special bits MODE
+   and device number DEV (which can be constructed from major and minor
+   device numbers with the `makedev' macro above).  */
+int
+__xmknod (int vers, const char *path, mode_t mode, dev_t *dev)
+{
+  unsigned long long int k_dev;
+
+  if (vers != _MKNOD_VER)
+    return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+
+  /* We must convert the value to dev_t type used by the kernel.  */
+  k_dev =  (*dev) & ((1ULL << 32) - 1);
+  if (k_dev != *dev)
+    return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
+
+  return INLINE_SYSCALL (mknod, 3, path, mode, (unsigned int) k_dev);
+}
+
+weak_alias (__xmknod, _xmknod)
+libc_hidden_def (__xmknod)