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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* Copyright (c) 2006 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "hx_locl.h"
RCSID("$Id: ks_dir.c 23460 2008-07-27 12:14:03Z lha $");
#include <dirent.h>
/*
* The DIR keyset module is strange compared to the other modules
* since it does lazy evaluation and really doesn't keep any local
* state except for the directory iteration and cert iteration of
* files. DIR ignores most errors so that the consumer doesn't get
* failes for stray files in directories.
*/
struct dircursor {
DIR *dir;
hx509_certs certs;
void *iter;
};
/*
*
*/
static int
dir_init(hx509_context context,
hx509_certs certs, void **data, int flags,
const char *residue, hx509_lock lock)
{
*data = NULL;
{
struct stat sb;
int ret;
ret = stat(residue, &sb);
if (ret == -1) {
hx509_set_error_string(context, 0, ENOENT,
"No such file %s", residue);
return ENOENT;
}
if ((sb.st_mode & S_IFDIR) == 0) {
hx509_set_error_string(context, 0, ENOTDIR,
"%s is not a directory", residue);
return ENOTDIR;
}
}
*data = strdup(residue);
if (*data == NULL) {
hx509_clear_error_string(context);
return ENOMEM;
}
return 0;
}
static int
dir_free(hx509_certs certs, void *data)
{
free(data);
return 0;
}
static int
dir_iter_start(hx509_context context,
hx509_certs certs, void *data, void **cursor)
{
struct dircursor *d;
*cursor = NULL;
d = calloc(1, sizeof(*d));
if (d == NULL) {
hx509_clear_error_string(context);
return ENOMEM;
}
d->dir = opendir(data);
if (d->dir == NULL) {
hx509_clear_error_string(context);
free(d);
return errno;
}
rk_cloexec(dirfd(d->dir));
d->certs = NULL;
d->iter = NULL;
*cursor = d;
return 0;
}
static int
dir_iter(hx509_context context,
hx509_certs certs, void *data, void *iter, hx509_cert *cert)
{
struct dircursor *d = iter;
int ret = 0;
*cert = NULL;
do {
struct dirent *dir;
char *fn;
if (d->certs) {
ret = hx509_certs_next_cert(context, d->certs, d->iter, cert);
if (ret) {
hx509_certs_end_seq(context, d->certs, d->iter);
d->iter = NULL;
hx509_certs_free(&d->certs);
return ret;
}
if (*cert) {
ret = 0;
break;
}
hx509_certs_end_seq(context, d->certs, d->iter);
d->iter = NULL;
hx509_certs_free(&d->certs);
}
dir = readdir(d->dir);
if (dir == NULL) {
ret = 0;
break;
}
if (strcmp(dir->d_name, ".") == 0 || strcmp(dir->d_name, "..") == 0)
continue;
if (asprintf(&fn, "FILE:%s/%s", (char *)data, dir->d_name) == -1)
return ENOMEM;
ret = hx509_certs_init(context, fn, 0, NULL, &d->certs);
if (ret == 0) {
ret = hx509_certs_start_seq(context, d->certs, &d->iter);
if (ret)
hx509_certs_free(&d->certs);
}
/* ignore errors */
if (ret) {
d->certs = NULL;
ret = 0;
}
free(fn);
} while(ret == 0);
return ret;
}
static int
dir_iter_end(hx509_context context,
hx509_certs certs,
void *data,
void *cursor)
{
struct dircursor *d = cursor;
if (d->certs) {
hx509_certs_end_seq(context, d->certs, d->iter);
d->iter = NULL;
hx509_certs_free(&d->certs);
}
closedir(d->dir);
free(d);
return 0;
}
static struct hx509_keyset_ops keyset_dir = {
"DIR",
0,
dir_init,
NULL,
dir_free,
NULL,
NULL,
dir_iter_start,
dir_iter,
dir_iter_end
};
void
_hx509_ks_dir_register(hx509_context context)
{
_hx509_ks_register(context, &keyset_dir);
}
|
