1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
/*
* Copyright (C) 2003-2014 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h" /* must be first for large file support */
#include "UpdateIO.hxx"
#include "UpdateDomain.hxx"
#include "db/Directory.hxx"
#include "storage/FileInfo.hxx"
#include "storage/StorageInterface.hxx"
#include "fs/Traits.hxx"
#include "fs/FileSystem.hxx"
#include "util/Error.hxx"
#include "Log.hxx"
#include <errno.h>
#include <unistd.h>
bool
GetInfo(Storage &storage, const char *uri_utf8, FileInfo &info)
{
Error error;
bool success = storage.GetInfo(uri_utf8, true, info, error);
if (!success)
LogError(error);
return success;
}
bool
GetInfo(StorageDirectoryReader &reader, FileInfo &info)
{
Error error;
bool success = reader.GetInfo(true, info, error);
if (!success)
LogError(error);
return success;
}
bool
DirectoryExists(Storage &storage, const Directory &directory)
{
FileInfo info;
if (!storage.GetInfo(directory.GetPath(), true, info, IgnoreError()))
return false;
return directory.device == DEVICE_INARCHIVE ||
directory.device == DEVICE_CONTAINER
? info.IsRegular()
: info.IsDirectory();
}
static bool
GetDirectoryChildInfo(Storage &storage, const Directory &directory,
const char *name_utf8, FileInfo &info, Error &error)
{
const auto uri_utf8 = PathTraitsUTF8::Build(directory.GetPath(),
name_utf8);
return storage.GetInfo(uri_utf8.c_str(), true, info, error);
}
bool
directory_child_is_regular(Storage &storage, const Directory &directory,
const char *name_utf8)
{
FileInfo info;
return GetDirectoryChildInfo(storage, directory, name_utf8, info,
IgnoreError()) &&
info.IsRegular();
}
bool
directory_child_access(Storage &storage, const Directory &directory,
const char *name, int mode)
{
#ifdef WIN32
/* CheckAccess() is useless on WIN32 */
(void)storage;
(void)directory;
(void)name;
(void)mode;
return true;
#else
const auto path = storage.MapChildFS(directory.GetPath(), name);
if (path.IsNull())
/* does not point to local file: silently ignore the
check */
return true;
return CheckAccess(path, mode) || errno != EACCES;
#endif
}
|
