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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
* Copyright (C) 2003-2013 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"
#include "ConfigPath.hxx"
#include "fs/Path.hxx"
#include "fs/Domain.hxx"
#include "util/Error.hxx"
#include "ConfigGlobal.hxx"
#include <glib.h>
#include <assert.h>
#include <string.h>
#ifndef WIN32
#include <pwd.h>
/**
* Determine a given user's home directory.
*/
static Path
GetHome(const char *user, Error &error)
{
passwd *pw = getpwnam(user);
if (pw == nullptr) {
error.Format(path_domain,
"no such user: %s", user);
return Path::Null();
}
return Path::FromFS(pw->pw_dir);
}
/**
* Determine the current user's home directory.
*/
static Path
GetHome(Error &error)
{
const char *home = g_get_home_dir();
if (home == nullptr) {
error.Set(path_domain,
"problems getting home for current user");
return Path::Null();
}
return Path::FromUTF8(home, error);
}
/**
* Determine the configured user's home directory.
*/
static Path
GetConfiguredHome(Error &error)
{
const char *user = config_get_string(CONF_USER, nullptr);
return user != nullptr
? GetHome(user, error)
: GetHome(error);
}
#endif
Path
ParsePath(const char *path, Error &error)
{
assert(path != nullptr);
#ifndef WIN32
if (path[0] == '~') {
++path;
if (*path == '\0')
return GetConfiguredHome(error);
Path home = Path::Null();
if (*path == '/') {
home = GetConfiguredHome(error);
++path;
} else {
const char *slash = strchr(path, '/');
char *user = slash != nullptr
? g_strndup(path, slash - path)
: g_strdup(path);
home = GetHome(user, error);
g_free(user);
if (slash == nullptr)
return home;
path = slash + 1;
}
if (home.IsNull())
return Path::Null();
Path path2 = Path::FromUTF8(path, error);
if (path2.IsNull())
return Path::Null();
return Path::Build(home, path2);
} else if (!Path::IsAbsoluteUTF8(path)) {
error.Format(path_domain,
"not an absolute path: %s", path);
return Path::Null();
} else {
#endif
return Path::FromUTF8(path, error);
#ifndef WIN32
}
#endif
}
|
