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-rw-r--r--sysdeps/unix/sysv/linux/mips/xstatconv.c201
1 files changed, 201 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/xstatconv.c b/sysdeps/unix/sysv/linux/mips/xstatconv.c
new file mode 100644
index 0000000000..38819e19b0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/xstatconv.c
@@ -0,0 +1,201 @@
+/* Convert between the kernel's `struct stat' format, and libc's.
+   Copyright (C) 1991-2014 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/stat.h>
+#include <kernel_stat.h>
+
+#include <string.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;
+	memset (&buf->st_pad1, 0, sizeof (buf->st_pad1));
+	buf->st_ino = kbuf->st_ino;
+	/* Check for overflow.  */
+	if (buf->st_ino != kbuf->st_ino)
+	  {
+	    __set_errno (EOVERFLOW);
+	    return -1;
+	  }
+	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;
+	memset (&buf->st_pad2, 0, sizeof (buf->st_pad2));
+	buf->st_size = kbuf->st_size;
+	/* Check for overflow.  */
+	if (buf->st_size != kbuf->st_size)
+	  {
+	    __set_errno (EOVERFLOW);
+	    return -1;
+	  }
+	buf->st_pad3 = 0;
+	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->st_blksize = kbuf->st_blksize;
+	buf->st_blocks = kbuf->st_blocks;
+	/* Check for overflow.  */
+	if (buf->st_blocks != kbuf->st_blocks)
+	  {
+	    __set_errno (EOVERFLOW);
+	    return -1;
+	  }
+	memset (&buf->st_pad5, 0, sizeof (buf->st_pad5));
+      }
+      break;
+
+    default:
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return 0;
+}
+
+int
+__xstat64_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
+{
+#ifdef XSTAT_IS_XSTAT64
+  return xstat_conv (vers, kbuf, ubuf);
+#else
+  switch (vers)
+    {
+    case _STAT_VER_LINUX:
+      {
+	struct stat64 *buf = ubuf;
+
+	buf->st_dev = kbuf->st_dev;
+	memset (&buf->st_pad1, 0, sizeof (buf->st_pad1));
+	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;
+	memset (&buf->st_pad2, 0, sizeof (buf->st_pad2));
+	buf->st_pad3 = 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;
+
+	memset (&buf->st_pad4, 0, sizeof (buf->st_pad4));
+      }
+      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;
+#endif
+}
+
+#if _MIPS_SIM == _ABIO32
+int
+__xstat32_conv (int vers, struct stat64 *kbuf, struct stat *buf)
+{
+  switch (vers)
+    {
+    case _STAT_VER_LINUX:
+      /* Convert current kernel version of `struct stat64' to
+	 `struct stat'.  The layout of the fields in the kernel's
+	 stat64 is the same as that in the user stat64; the only
+	 difference is that the latter has more trailing padding.  */
+      buf->st_dev = kbuf->st_dev;
+      memset (&buf->st_pad1, 0, sizeof (buf->st_pad1));
+      buf->st_ino = kbuf->st_ino;
+      /* Check for overflow.  */
+      if (buf->st_ino != kbuf->st_ino)
+	{
+	  __set_errno (EOVERFLOW);
+	  return -1;
+	}
+      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;
+      memset (&buf->st_pad2, 0, sizeof (buf->st_pad2));
+      buf->st_size = kbuf->st_size;
+      /* Check for overflow.  */
+      if (buf->st_size != kbuf->st_size)
+	{
+	  __set_errno (EOVERFLOW);
+	  return -1;
+	}
+      buf->st_pad3 = 0;
+      buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
+      buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
+      buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
+      buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
+      buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
+      buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
+      buf->st_blksize = kbuf->st_blksize;
+      buf->st_blocks = kbuf->st_blocks;
+      /* Check for overflow.  */
+      if (buf->st_blocks != kbuf->st_blocks)
+	{
+	  __set_errno (EOVERFLOW);
+	  return -1;
+	}
+      memset (&buf->st_pad5, 0, sizeof (buf->st_pad5));
+      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;
+}
+#endif /* _MIPS_SIM == _ABIO32 */