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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
This file is not licenced under the GPL like the rest of the code.
Its is under the MIT license, to encourage reuse by cut-and-paste.
Copyright (c) 2007 Red Hat, inc
Copyright (C) 2012-2021 MATE Developers
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation files
(the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of the Software,
and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "xdg-user-dir-lookup.h"
char *
xdg_user_dir_lookup (const char *type)
{
FILE *file;
char *home_dir, *config_home, *config_file;
char buffer[512];
char *user_dir;
char *p, *d;
int relative;
home_dir = getenv ("HOME");
if (home_dir == NULL)
return strdup ("/tmp");
config_home = getenv ("XDG_CONFIG_HOME");
if (config_home == NULL || config_home[0] == 0)
{
config_file = malloc (strlen (home_dir) + strlen ("/.config/user-dirs.dirs") + 1);
strcpy (config_file, home_dir);
strcat (config_file, "/.config/user-dirs.dirs");
}
else
{
config_file = malloc (strlen (config_home) + strlen ("/user-dirs.dirs") + 1);
strcpy (config_file, config_home);
strcat (config_file, "/user-dirs.dirs");
}
file = fopen (config_file, "r");
free (config_file);
if (file == NULL)
goto error;
user_dir = NULL;
while (fgets (buffer, sizeof (buffer), file))
{
/* Remove newline at end */
size_t len = strlen (buffer);
if (len != 0 && buffer[len-1] == '\n')
buffer[len-1] = 0;
p = buffer;
while (*p == ' ' || *p == '\t')
p++;
if (strncmp (p, "XDG_", 4) != 0)
continue;
p += 4;
if (strncmp (p, type, strlen (type)) != 0)
continue;
p += strlen (type);
if (strncmp (p, "_DIR", 4) != 0)
continue;
p += 4;
while (*p == ' ' || *p == '\t')
p++;
if (*p != '=')
continue;
p++;
while (*p == ' ' || *p == '\t')
p++;
if (*p != '"')
continue;
p++;
relative = 0;
if (strncmp (p, "$HOME/", 6) == 0)
{
p += 6;
relative = 1;
}
else if (*p != '/')
continue;
if (relative)
{
user_dir = malloc (strlen (home_dir) + 1 + strlen (p) + 1);
strcpy (user_dir, home_dir);
strcat (user_dir, "/");
}
else
{
user_dir = malloc (strlen (p) + 1);
*user_dir = 0;
}
d = user_dir + strlen (user_dir);
while (*p && *p != '"')
{
if ((*p == '\\') && (*(p+1) != 0))
p++;
*d++ = *p++;
}
*d = 0;
}
fclose (file);
if (user_dir)
return user_dir;
error:
/* Special case desktop for historical compatibility */
if (strcmp (type, "DESKTOP") == 0)
{
user_dir = malloc (strlen (home_dir) + strlen ("/Desktop") + 1);
strcpy (user_dir, home_dir);
strcat (user_dir, "/Desktop");
return user_dir;
}
else
return strdup (home_dir);
}
#ifdef STANDALONE
int
main (int argc, char *argv[])
{
if (argc != 2)
{
fprintf (stderr, "Usage %s <dir-type>\n", argv[0]);
exit (1);
}
printf ("%s\n", xdg_user_dir_lookup (argv[1]));
return 0;
}
#endif
|
