Initial import

[samba] / source / smbd / statvfs.c

diff --git a/source/smbd/statvfs.c b/source/smbd/statvfs.c
new file mode 100644 (file)
index 0000000..8f981a6
--- /dev/null
+++ b/source/smbd/statvfs.c
@@ -0,0 +1,65 @@
+/* 
+   Unix SMB/CIFS implementation.
+   VFS API's statvfs abstraction
+   Copyright (C) Alexander Bokovoy                     2005
+   Copyright (C) Steve French                          2005
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program 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 General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#if defined(LINUX)
+static int linux_statvfs(const char *path, vfs_statvfs_struct *statbuf)
+{
+       struct statvfs statvfs_buf;
+       int result;
+
+       result = statvfs(path, &statvfs_buf);
+
+       if (!result) {
+               statbuf->OptimalTransferSize = statvfs_buf.f_frsize;
+               statbuf->BlockSize = statvfs_buf.f_bsize;
+               statbuf->TotalBlocks = statvfs_buf.f_blocks;
+               statbuf->BlocksAvail = statvfs_buf.f_bfree;
+               statbuf->UserBlocksAvail = statvfs_buf.f_bavail;
+               statbuf->TotalFileNodes = statvfs_buf.f_files;
+               statbuf->FreeFileNodes = statvfs_buf.f_ffree;
+               statbuf->FsIdentifier = statvfs_buf.f_fsid;
+       }
+       return result;
+}
+#endif
+
+/* 
+ sys_statvfs() is an abstraction layer over system-dependent statvfs()/statfs()
+ for particular POSIX systems. Due to controversy of what is considered more important
+ between LSB and FreeBSD/POSIX.1 (IEEE Std 1003.1-2001) we need to abstract the interface
+ so that particular OS would use its preffered interface.
+*/
+int sys_statvfs(const char *path, vfs_statvfs_struct *statbuf)
+{
+#if defined(LINUX)
+       return linux_statvfs(path, statbuf);
+#else
+       /* BB change this to return invalid level */
+#ifdef EOPNOTSUPP
+       return EOPNOTSUPP;
+#else
+       return -1;
+#endif /* EOPNOTSUPP */
+#endif /* LINUX */
+
+}