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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
|
/* Copyright (c) 2009-2018 Dovecot authors, see the included COPYING file */
#include "test-lib.h"
#include "sha2.h"
#include "istream-private.h"
#include "istream-sized.h"
#include "istream-hash.h"
#include "istream-seekable.h"
#include <fcntl.h>
#include <unistd.h>
static int fd_callback_fd = -1;
static int fd_callback(const char **path_r, void *context ATTR_UNUSED)
{
int fd;
*path_r = "test-lib.tmp";
fd = open(*path_r, O_RDWR | O_CREAT | O_TRUNC, 0600);
if (fd == -1)
i_error("creat(%s) failed: %m", *path_r);
else
i_unlink(*path_r);
fd_callback_fd = fd;
return fd;
}
static void test_istream_seekable_one(unsigned int buffer_size)
{
static const char *input_string = "xyz";
#define STREAM_COUNT 5
#define STREAM_BYTES 3
struct istream *streams[STREAM_COUNT+1];
struct istream *input;
const unsigned char *data;
size_t size;
unsigned int i, j;
for (i = 0; i < STREAM_COUNT; i++) {
streams[i] = test_istream_create(input_string);
streams[i]->seekable = FALSE;
test_istream_set_allow_eof(streams[i], TRUE);
test_istream_set_size(streams[i], 0);
}
streams[i] = NULL;
input = i_stream_create_seekable(streams, buffer_size, fd_callback, NULL);
test_assert(!input->blocking);
for (i = 0; i/STREAM_BYTES < STREAM_COUNT; i++) {
test_istream_set_size(streams[i/STREAM_BYTES], (i%STREAM_BYTES) + 1);
if (i < buffer_size) {
test_assert(i_stream_read(input) == 1);
data = i_stream_get_data(input, &size);
test_assert(size == i+1);
} else {
test_assert(i_stream_read(input) == -2);
i_stream_skip(input, 1);
test_assert(i_stream_read(input) == 1);
data = i_stream_get_data(input, &size);
test_assert(size == buffer_size);
}
for (j = 0; j < size; j++) {
test_assert((char)data[j] == input_string[(input->v_offset + j) % STREAM_BYTES]);
}
}
test_assert(!input->blocking);
test_assert(i_stream_read(input) == -1);
test_assert(input->blocking);
for (i = 0; i < STREAM_COUNT; i++) {
test_assert(streams[i]->eof && streams[i]->stream_errno == 0);
i_stream_unref(&streams[i]);
}
i_stream_unref(&input);
}
static void test_istream_seekable_random(void)
{
struct istream **streams, *input;
const unsigned char *data;
unsigned char *w_data;
size_t size;
unsigned int i, j, offset, stream_count, data_len, buffer_size;
stream_count = i_rand_minmax(2, 10 + 2 - 1);
streams = t_new(struct istream *, stream_count + 1);
for (i = 0, offset = 0; i < stream_count; i++) {
data_len = i_rand_minmax(1, 100);
w_data = t_malloc_no0(data_len);
for (j = 0; j < data_len; j++)
w_data[j] = (offset++) & 0xff;
streams[i] = test_istream_create_data(w_data, data_len);
streams[i]->seekable = FALSE;
test_istream_set_allow_eof(streams[i], TRUE);
}
streams[i] = NULL;
i_assert(offset > 0);
buffer_size = i_rand_minmax(1, 100); size = 0;
input = i_stream_create_seekable(streams, buffer_size, fd_callback, NULL);
test_assert(!input->blocking);
/* first read it through */
while (i_stream_read(input) > 0) {
size = i_stream_get_data_size(input);
i_stream_skip(input, size);
}
test_assert(input->blocking);
i_stream_seek(input, 0);
for (i = 0; i < 100; i++) {
if (i_rand_limit(3) == 0) {
i_stream_seek(input, i_rand_limit(offset));
} else {
ssize_t ret = i_stream_read(input);
if (input->v_offset + size == offset)
test_assert(ret < 0);
else if (ret == -2) {
test_assert(size == buffer_size);
} else {
test_assert(ret > 0);
test_assert(input->v_offset + ret <= offset);
i_stream_skip(input, i_rand_limit(ret + 1));
data = i_stream_get_data(input, &size);
for (j = 0; j < size; j++) {
test_assert(data[j] == (input->v_offset + j) % 256);
}
}
}
size = i_stream_get_data_size(input);
}
for (i = 0; i < stream_count; i++) {
test_assert(streams[i]->eof && streams[i]->stream_errno == 0);
i_stream_unref(&streams[i]);
}
i_stream_unref(&input);
}
static void test_istream_seekable_eof(void)
{
static const char *in_str = "foo";
unsigned int in_str_len = strlen(in_str);
struct istream *streams[2], *input;
const unsigned char *data;
size_t size;
test_begin("istream seekable eof");
streams[0] = i_stream_create_from_data(in_str, in_str_len);
streams[0]->seekable = FALSE;
streams[1] = NULL;
input = i_stream_create_seekable(streams, in_str_len, fd_callback, NULL);
test_assert(i_stream_read(input) == (ssize_t)in_str_len);
data = i_stream_get_data(input, &size);
test_assert(size == in_str_len);
test_assert(memcmp(data, in_str, in_str_len) == 0);
test_assert(i_stream_read(input) == -1);
data = i_stream_get_data(input, &size);
test_assert(size == in_str_len);
test_assert(memcmp(data, in_str, in_str_len) == 0);
i_stream_seek(input, size);
i_stream_unref(&input);
test_assert(streams[0]->v_offset == in_str_len);
test_assert(streams[0]->eof);
i_stream_unref(&streams[0]);
test_end();
}
static void test_istream_seekable_early_end(void)
{
struct istream *input, *streams[2];
test_begin("istream seekable early end");
streams[0] = test_istream_create("stream");
test_istream_set_size(streams[0], 3);
test_istream_set_allow_eof(streams[0], FALSE);
streams[0]->seekable = FALSE;
streams[1] = NULL;
input = i_stream_create_seekable(streams, 1000, fd_callback, NULL);
test_assert(i_stream_read(input) == 3);
test_istream_set_size(streams[0], 5);
test_assert(i_stream_read(input) == 2);
i_stream_skip(input, 5);
i_stream_unref(&input);
test_assert(streams[0]->v_offset == 5);
i_stream_unref(&streams[0]);
test_end();
}
static void test_istream_seekable_invalid_read(void)
{
test_begin("istream seekable + other streams causing invalid read");
struct sha256_ctx hash_ctx;
sha256_init(&hash_ctx);
struct istream *str_input = test_istream_create("123456");
str_input->seekable = FALSE;
struct istream *seek_inputs[] = { str_input, NULL };
struct istream *seek_input = i_stream_create_seekable(seek_inputs, 3, fd_callback, NULL);
struct istream *sized_input = i_stream_create_sized(seek_input, 3);
struct istream *input = i_stream_create_hash(sized_input, &hash_method_sha256, &hash_ctx);
test_assert(i_stream_read(input) == 3);
test_assert(i_stream_read(input) == -2);
i_stream_skip(input, 3);
test_assert(i_stream_read(input) == -1);
i_stream_unref(&input);
i_stream_unref(&sized_input);
i_stream_unref(&seek_input);
i_stream_unref(&str_input);
test_end();
}
static void test_istream_seekable_get_size(void)
{
test_begin("istream seekable get size");
struct istream *str_input = test_istream_create("123456");
str_input->seekable = FALSE;
struct istream *seek_inputs[] = { str_input, NULL };
struct istream *input = i_stream_create_seekable(seek_inputs, 32, fd_callback, NULL);
uoff_t size;
test_assert(i_stream_read(input) == 6);
test_assert(i_stream_read(input) == -1);
test_assert(i_stream_get_size(input, TRUE, &size) == 1 &&
size == 6);
i_stream_unref(&input);
i_stream_unref(&str_input);
test_end();
}
static void test_istream_seekable_failed_writes(void)
{
struct istream *input, *streams[2];
test_begin("istream seekable failed write");
streams[0] = test_istream_create("stream");
test_istream_set_size(streams[0], 3);
test_istream_set_allow_eof(streams[0], FALSE);
streams[0]->seekable = FALSE;
streams[1] = NULL;
input = i_stream_create_seekable(streams, 2, fd_callback, NULL);
i_stream_set_name(input, "test seekable");
test_assert(i_stream_read(input) == 2);
i_stream_skip(input, 2);
test_assert(i_stream_read(input) == 1);
i_close_fd(&fd_callback_fd);
test_istream_set_size(streams[0], 5);
test_expect_error_string("istream-seekable: write_full(test-lib.tmp) failed: Bad file descriptor");
test_assert(i_stream_read(input) == -1);
test_expect_no_more_errors();
test_expect_error_string("file_istream.close((seekable temp-istream for: test seekable)) failed: Bad file descriptor");
i_stream_unref(&input);
test_expect_no_more_errors();
i_stream_unref(&streams[0]);
test_end();
}
void test_istream_seekable(void)
{
unsigned int i;
test_begin("istream seekable");
for (i = 1; i <= STREAM_BYTES*STREAM_COUNT; i++)
test_istream_seekable_one(i);
test_end();
test_begin("istream seekable random");
for (i = 0; i < 100; i++) T_BEGIN {
test_istream_seekable_random();
} T_END;
test_end();
test_istream_seekable_eof();
test_istream_seekable_early_end();
test_istream_seekable_invalid_read();
test_istream_seekable_get_size();
test_istream_seekable_failed_writes();
}
|
