Fix the dev version of the PPAPI video decoder plugin.
[chromium-blink-merge.git] / base / file_util_linux.cc
blob2910c9cb4ec73065556bda112f4712e87fabaff8
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/file_util.h"
7 #include <errno.h>
8 #include <linux/magic.h>
9 #include <sys/vfs.h>
11 #include "base/files/file_path.h"
13 // Make sure some of the newer macros from magic.h are defined.
14 // TODO(mostynb@opera.com): remove this after 2014.
15 #ifndef BTRFS_SUPER_MAGIC
16 #define BTRFS_SUPER_MAGIC 0x9123683E
17 #endif
18 #ifndef HUGETLBFS_MAGIC
19 #define HUGETLBFS_MAGIC 0x958458f6
20 #endif
21 #ifndef RAMFS_MAGIC
22 #define RAMFS_MAGIC 0x858458f6
23 #endif
24 #ifndef TMPFS_MAGIC
25 #define TMPFS_MAGIC 0x01021994
26 #endif
28 namespace base {
30 bool GetFileSystemType(const FilePath& path, FileSystemType* type) {
31 struct statfs statfs_buf;
32 if (statfs(path.value().c_str(), &statfs_buf) < 0) {
33 if (errno == ENOENT)
34 return false;
35 *type = FILE_SYSTEM_UNKNOWN;
36 return true;
39 // Not all possible |statfs_buf.f_type| values are in linux/magic.h.
40 // Missing values are copied from the statfs man page.
41 switch (statfs_buf.f_type) {
42 case 0:
43 *type = FILE_SYSTEM_0;
44 break;
45 case EXT2_SUPER_MAGIC: // Also ext3 and ext4
46 case MSDOS_SUPER_MAGIC:
47 case REISERFS_SUPER_MAGIC:
48 case BTRFS_SUPER_MAGIC:
49 case 0x5346544E: // NTFS
50 case 0x58465342: // XFS
51 case 0x3153464A: // JFS
52 *type = FILE_SYSTEM_ORDINARY;
53 break;
54 case NFS_SUPER_MAGIC:
55 *type = FILE_SYSTEM_NFS;
56 break;
57 case SMB_SUPER_MAGIC:
58 case 0xFF534D42: // CIFS
59 *type = FILE_SYSTEM_SMB;
60 break;
61 case CODA_SUPER_MAGIC:
62 *type = FILE_SYSTEM_CODA;
63 break;
64 case HUGETLBFS_MAGIC:
65 case RAMFS_MAGIC:
66 case TMPFS_MAGIC:
67 *type = FILE_SYSTEM_MEMORY;
68 break;
69 case CGROUP_SUPER_MAGIC:
70 *type = FILE_SYSTEM_CGROUP;
71 break;
72 default:
73 *type = FILE_SYSTEM_OTHER;
75 return true;
78 } // namespace base