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Diffstat (limited to 'sysdeps/unix/sysv/linux/generic/xmknod.c')
-rw-r--r--sysdeps/unix/sysv/linux/generic/xmknod.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/generic/xmknod.c b/sysdeps/unix/sysv/linux/generic/xmknod.c
new file mode 100644
index 0000000000..e08bb0ecea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/generic/xmknod.c
@@ -0,0 +1,54 @@
+/* Copyright (C) 2011-2014 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+ 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 <fcntl.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)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ /* We must convert the value to dev_t type used by the kernel. */
+ k_dev = (*dev) & ((1ULL << 32) - 1);
+ if (k_dev != *dev)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ return INLINE_SYSCALL (mknodat, 4, AT_FDCWD, path, mode,
+ (unsigned int) k_dev);
+}
+weak_alias (__xmknod, _xmknod)
+libc_hidden_def (__xmknod)