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
|
/* mkdir_p.c - Create a directory and any missing parents.
* Copyright (C) 2015 g10 Code GmbH
*
* This file is part of GnuPG.
*
* GnuPG 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 3 of the License, or
* (at your option) any later version.
*
* GnuPG 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, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <sys/stat.h>
#include <errno.h>
#include <assert.h>
#include <stdarg.h>
#include "mkdir_p.h"
#include "stringhelp.h"
#include "logging.h"
#include "util.h"
#define DEBUG 0
int
amkdir_p (char **directory_components)
{
int count;
char **dirs;
int i;
int rc = 0;
for (count = 0; directory_components[count]; count ++)
;
if (DEBUG)
log_debug ("%s: %d directory components.\n", __func__, count);
dirs = xcalloc (count, sizeof (char *));
for (i = 0; directory_components[i]; i ++)
{
if (i == 0)
dirs[i] = directory_components[i];
else
dirs[i] = make_filename (dirs[i - 1], directory_components[i], NULL);
if (DEBUG)
log_debug ("%s: Directory %d: `%s'.\n", __func__, i, dirs[i]);
}
for (i = count - 1; i >= 0; i --)
{
struct stat s;
if (DEBUG)
log_debug ("%s: stat(%s)\n", __func__, dirs[i]);
rc = stat (dirs[i], &s);
if (rc == 0 && ! S_ISDIR (s.st_mode))
{
if (DEBUG)
log_debug ("%s: %s exists, but is not a directory!\n",
__func__, dirs[i]);
rc = gpg_error (GPG_ERR_ENOTDIR);
goto out;
}
else if (rc == 0)
{
/* Got a directory. */
if (DEBUG)
log_debug ("%s: %s exists and is a directory!\n",
__func__, dirs[i]);
break;
}
else if (errno == ENOENT)
/* This directory does not exist yet. Continue walking up the
hierarchy. */
{
if (DEBUG)
log_debug ("%s: %s does not exist!\n",
__func__, dirs[i]);
continue;
}
else
/* Some other error code. Die. Note: this could be ENOTDIR
(we return this above), which means that a component of the
path prefix is not a directory. */
{
if (DEBUG)
log_debug ("%s: stat(%s) => %s!\n",
__func__, dirs[i], strerror (errno));
rc = gpg_error_from_syserror ();
goto out;
}
}
assert (i >= -1);
/* DIRS[I] exists. Start with the following entry. */
i ++;
for (; i < count; i ++)
{
if (DEBUG)
log_debug ("Creating directory: %s\n", dirs[i]);
rc = mkdir (dirs[i], S_IRUSR | S_IWUSR | S_IXUSR);
if (rc)
{
rc = gpg_error_from_syserror ();
goto out;
}
}
out:
for (i = 1; i < count; i ++)
xfree (dirs[i]);
xfree (dirs);
if (DEBUG)
log_debug ("%s: Returning %s\n", __func__, gpg_strerror (rc));
return rc;
}
int
mkdir_p (char *directory_component, ...)
{
va_list ap;
int i;
int space = 1;
char **dirs = xmalloc (space * sizeof (char *));
int rc;
dirs[0] = directory_component;
va_start (ap, directory_component);
for (i = 1; dirs[i - 1]; i ++)
{
if (i == space)
{
space = 2 * space;
dirs = xrealloc (dirs, space * sizeof (char *));
}
dirs[i] = va_arg (ap, char *);
}
va_end (ap);
rc = amkdir_p (dirs);
xfree (dirs);
return rc;
}
|
