2.5-18.1

sysdeps/unix/sysv/linux/sparc/sparc64/xstatconv.c

@@ -0,0 +1,127 @@
+/* Convert between the kernel's `struct stat' format, and libc's.
+   Copyright (C) 1991, 1995, 1996, 1997, 2000, 2002, 2003, 2006
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <assert.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <kernel_stat.h>
+#include <string.h>
+#include <kernel-features.h>
+
+int
+__xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
+{
+  switch (vers)
+    {
+    case _STAT_VER_KERNEL:
+      /* Nothing to do.  The struct is in the form the kernel expects.
+         We should have short-circuted before we got here, but for
+         completeness... */
+      *(struct kernel_stat *) ubuf = *kbuf;
+      break;
+
+    case _STAT_VER_LINUX:
+      {
+	struct stat *buf = ubuf;
+
+	/* Convert to current kernel version of `struct stat'.  */
+	buf->st_dev = kbuf->st_dev;
+	buf->__pad1 = 0;
+	buf->st_ino = kbuf->st_ino;
+	buf->st_mode = kbuf->st_mode;
+	buf->st_nlink = kbuf->st_nlink;
+	buf->st_uid = kbuf->st_uid;
+	buf->st_gid = kbuf->st_gid;
+	buf->st_rdev = kbuf->st_rdev;
+	buf->__pad2 = 0;
+	buf->st_size = kbuf->st_size;
+	buf->st_blksize = kbuf->st_blksize;
+	buf->st_blocks = kbuf->st_blocks;
+	buf->st_atim.tv_sec = kbuf->st_atime_sec;
+	buf->st_atim.tv_nsec = 0;
+	buf->st_mtim.tv_sec = kbuf->st_mtime_sec;
+	buf->st_mtim.tv_nsec = 0;
+	buf->st_ctim.tv_sec = kbuf->st_ctime_sec;
+	buf->st_ctim.tv_nsec = 0;
+	buf->__unused4 = 0;
+	buf->__unused5 = 0;
+      }
+      break;
+
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return 0;
+}
+
+int
+__xstat32_conv (int vers, struct stat64 *sbuf, struct stat *buf)
+{
+  struct kernel_stat64 *kbuf;
+
+  /* *stat64 syscalls on sparc64 really fill in struct kernel_stat64,
+     rather than struct stat64.  But it is the same size as
+     struct kernel_stat64, so use this hack so that we can reuse
+     i386 {,f,l}xstat{,at}.c routines.  */
+  __asm ("" : "=r" (kbuf) : "0" (sbuf));
+  assert (sizeof (struct stat) == sizeof (struct stat64));
+  assert (sizeof (struct stat64) >= sizeof (struct kernel_stat64));
+
+  switch (vers)
+    {
+    case _STAT_VER_LINUX:
+      {
+	/* Convert current kernel version of `struct stat64' to
+           `struct stat'.  */
+	buf->st_dev = kbuf->st_dev;
+	buf->__pad1 = 0;
+	buf->st_ino = kbuf->st_ino;
+	buf->st_mode = kbuf->st_mode;
+	buf->st_nlink = kbuf->st_nlink;
+	buf->st_uid = kbuf->st_uid;
+	buf->st_gid = kbuf->st_gid;
+	buf->st_rdev = kbuf->st_rdev;
+	buf->__pad2 = 0;
+	buf->st_size = kbuf->st_size;
+	buf->st_blksize = kbuf->st_blksize;
+	buf->st_blocks = kbuf->st_blocks;
+	buf->st_atim.tv_sec = kbuf->st_atime_sec;
+	buf->st_atim.tv_nsec = kbuf->st_atime_nsec;
+	buf->st_mtim.tv_sec = kbuf->st_mtime_sec;
+	buf->st_mtim.tv_nsec = kbuf->st_mtime_nsec;
+	buf->st_ctim.tv_sec = kbuf->st_ctime_sec;
+	buf->st_ctim.tv_nsec = kbuf->st_ctime_nsec;
+	buf->__unused4 = 0;
+	buf->__unused5 = 0;
+      }
+      break;
+
+      /* If struct stat64 is different from struct stat then
+	 _STAT_VER_KERNEL does not make sense.  */
+    case _STAT_VER_KERNEL:
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return 0;
+}