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
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
|
#include <js_native_api.h>
#include <limits.h> // INT_MAX
#include <stdlib.h>
#include <string.h>
#include "../common.h"
#include "../entry_point.h"
#include "test_null.h"
enum length_type { actual_length, auto_length };
static napi_status validate_and_retrieve_single_string_arg(
napi_env env, napi_callback_info info, napi_value* arg) {
size_t argc = 1;
NODE_API_CHECK_STATUS(napi_get_cb_info(env, info, &argc, arg, NULL, NULL));
NODE_API_ASSERT_STATUS(env, argc >= 1, "Wrong number of arguments");
napi_valuetype valuetype;
NODE_API_CHECK_STATUS(napi_typeof(env, *arg, &valuetype));
NODE_API_ASSERT_STATUS(env,
valuetype == napi_string,
"Wrong type of argment. Expects a string.");
return napi_ok;
}
// These help us factor out code that is common between the bindings.
typedef napi_status (*OneByteCreateAPI)(napi_env,
const char*,
size_t,
napi_value*);
typedef napi_status (*OneByteGetAPI)(
napi_env, napi_value, char*, size_t, size_t*);
typedef napi_status (*TwoByteCreateAPI)(napi_env,
const char16_t*,
size_t,
napi_value*);
typedef napi_status (*TwoByteGetAPI)(
napi_env, napi_value, char16_t*, size_t, size_t*);
// Test passing back the one-byte string we got from JS.
static napi_value TestOneByteImpl(napi_env env,
napi_callback_info info,
OneByteGetAPI get_api,
OneByteCreateAPI create_api,
enum length_type length_mode) {
napi_value args[1];
NODE_API_CALL(env, validate_and_retrieve_single_string_arg(env, info, args));
char buffer[128];
size_t buffer_size = 128;
size_t copied;
NODE_API_CALL(env, get_api(env, args[0], buffer, buffer_size, &copied));
napi_value output;
if (length_mode == auto_length) {
copied = NAPI_AUTO_LENGTH;
}
NODE_API_CALL(env, create_api(env, buffer, copied, &output));
return output;
}
// Test passing back the two-byte string we got from JS.
static napi_value TestTwoByteImpl(napi_env env,
napi_callback_info info,
TwoByteGetAPI get_api,
TwoByteCreateAPI create_api,
enum length_type length_mode) {
napi_value args[1];
NODE_API_CALL(env, validate_and_retrieve_single_string_arg(env, info, args));
char16_t buffer[128];
size_t buffer_size = 128;
size_t copied;
NODE_API_CALL(env, get_api(env, args[0], buffer, buffer_size, &copied));
napi_value output;
if (length_mode == auto_length) {
copied = NAPI_AUTO_LENGTH;
}
NODE_API_CALL(env, create_api(env, buffer, copied, &output));
return output;
}
static void free_string(node_api_basic_env env, void* data, void* hint) {
free(data);
}
static napi_status create_external_latin1(napi_env env,
const char* string,
size_t length,
napi_value* result) {
napi_status status;
// Initialize to true, because that is the value we don't want.
bool copied = true;
char* string_copy;
const size_t actual_length =
(length == NAPI_AUTO_LENGTH ? strlen(string) : length);
const size_t length_bytes = (actual_length + 1) * sizeof(*string_copy);
string_copy = malloc(length_bytes);
memcpy(string_copy, string, length_bytes);
string_copy[actual_length] = 0;
status = node_api_create_external_string_latin1(
env, string_copy, length, free_string, NULL, result, &copied);
// We do not want the string to be copied.
if (copied) {
return napi_generic_failure;
}
if (status != napi_ok) {
free(string_copy);
return status;
}
return napi_ok;
}
// strlen for char16_t. Needed in case we're copying a string of length
// NAPI_AUTO_LENGTH.
static size_t strlen16(const char16_t* string) {
for (const char16_t* iter = string;; iter++) {
if (*iter == 0) {
return iter - string;
}
}
// We should never get here.
abort();
}
static napi_status create_external_utf16(napi_env env,
const char16_t* string,
size_t length,
napi_value* result) {
napi_status status;
// Initialize to true, because that is the value we don't want.
bool copied = true;
char16_t* string_copy;
const size_t actual_length =
(length == NAPI_AUTO_LENGTH ? strlen16(string) : length);
const size_t length_bytes = (actual_length + 1) * sizeof(*string_copy);
string_copy = malloc(length_bytes);
memcpy(string_copy, string, length_bytes);
string_copy[actual_length] = 0;
status = node_api_create_external_string_utf16(
env, string_copy, length, free_string, NULL, result, &copied);
if (status != napi_ok) {
free(string_copy);
return status;
}
return napi_ok;
}
static napi_value TestLatin1(napi_env env, napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_latin1,
napi_create_string_latin1,
actual_length);
}
static napi_value TestUtf8(napi_env env, napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_utf8,
napi_create_string_utf8,
actual_length);
}
static napi_value TestUtf16(napi_env env, napi_callback_info info) {
return TestTwoByteImpl(env,
info,
napi_get_value_string_utf16,
napi_create_string_utf16,
actual_length);
}
static napi_value TestLatin1AutoLength(napi_env env, napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_latin1,
napi_create_string_latin1,
auto_length);
}
static napi_value TestUtf8AutoLength(napi_env env, napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_utf8,
napi_create_string_utf8,
auto_length);
}
static napi_value TestUtf16AutoLength(napi_env env, napi_callback_info info) {
return TestTwoByteImpl(env,
info,
napi_get_value_string_utf16,
napi_create_string_utf16,
auto_length);
}
static napi_value TestLatin1External(napi_env env, napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_latin1,
create_external_latin1,
actual_length);
}
static napi_value TestUtf16External(napi_env env, napi_callback_info info) {
return TestTwoByteImpl(env,
info,
napi_get_value_string_utf16,
create_external_utf16,
actual_length);
}
static napi_value TestLatin1ExternalAutoLength(napi_env env,
napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_latin1,
create_external_latin1,
auto_length);
}
static napi_value TestUtf16ExternalAutoLength(napi_env env,
napi_callback_info info) {
return TestTwoByteImpl(env,
info,
napi_get_value_string_utf16,
create_external_utf16,
auto_length);
}
static napi_value TestLatin1Insufficient(napi_env env,
napi_callback_info info) {
napi_value args[1];
NODE_API_CALL(env, validate_and_retrieve_single_string_arg(env, info, args));
char buffer[4];
size_t buffer_size = 4;
size_t copied;
NODE_API_CALL(
env,
napi_get_value_string_latin1(env, args[0], buffer, buffer_size, &copied));
napi_value output;
NODE_API_CALL(env, napi_create_string_latin1(env, buffer, copied, &output));
return output;
}
static napi_value TestUtf8Insufficient(napi_env env, napi_callback_info info) {
napi_value args[1];
NODE_API_CALL(env, validate_and_retrieve_single_string_arg(env, info, args));
char buffer[4];
size_t buffer_size = 4;
size_t copied;
NODE_API_CALL(
env,
napi_get_value_string_utf8(env, args[0], buffer, buffer_size, &copied));
napi_value output;
NODE_API_CALL(env, napi_create_string_utf8(env, buffer, copied, &output));
return output;
}
static napi_value TestUtf16Insufficient(napi_env env, napi_callback_info info) {
napi_value args[1];
NODE_API_CALL(env, validate_and_retrieve_single_string_arg(env, info, args));
char16_t buffer[4];
size_t buffer_size = 4;
size_t copied;
NODE_API_CALL(
env,
napi_get_value_string_utf16(env, args[0], buffer, buffer_size, &copied));
napi_value output;
NODE_API_CALL(env, napi_create_string_utf16(env, buffer, copied, &output));
return output;
}
static napi_value TestPropertyKeyLatin1(napi_env env, napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_latin1,
node_api_create_property_key_latin1,
actual_length);
}
static napi_value TestPropertyKeyLatin1AutoLength(napi_env env,
napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_latin1,
node_api_create_property_key_latin1,
auto_length);
}
static napi_value TestPropertyKeyUtf8(napi_env env, napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_utf8,
node_api_create_property_key_utf8,
actual_length);
}
static napi_value TestPropertyKeyUtf8AutoLength(napi_env env,
napi_callback_info info) {
return TestOneByteImpl(env,
info,
napi_get_value_string_utf8,
node_api_create_property_key_utf8,
auto_length);
}
static napi_value TestPropertyKeyUtf16(napi_env env, napi_callback_info info) {
return TestTwoByteImpl(env,
info,
napi_get_value_string_utf16,
node_api_create_property_key_utf16,
actual_length);
}
static napi_value TestPropertyKeyUtf16AutoLength(napi_env env,
napi_callback_info info) {
return TestTwoByteImpl(env,
info,
napi_get_value_string_utf16,
node_api_create_property_key_utf16,
auto_length);
}
static napi_value Latin1Length(napi_env env, napi_callback_info info) {
napi_value args[1];
NODE_API_CALL(env, validate_and_retrieve_single_string_arg(env, info, args));
size_t length;
NODE_API_CALL(env,
napi_get_value_string_latin1(env, args[0], NULL, 0, &length));
napi_value output;
NODE_API_CALL(env, napi_create_uint32(env, (uint32_t)length, &output));
return output;
}
static napi_value Utf16Length(napi_env env, napi_callback_info info) {
napi_value args[1];
NODE_API_CALL(env, validate_and_retrieve_single_string_arg(env, info, args));
size_t length;
NODE_API_CALL(env,
napi_get_value_string_utf16(env, args[0], NULL, 0, &length));
napi_value output;
NODE_API_CALL(env, napi_create_uint32(env, (uint32_t)length, &output));
return output;
}
static napi_value Utf8Length(napi_env env, napi_callback_info info) {
napi_value args[1];
NODE_API_CALL(env, validate_and_retrieve_single_string_arg(env, info, args));
size_t length;
NODE_API_CALL(env,
napi_get_value_string_utf8(env, args[0], NULL, 0, &length));
napi_value output;
NODE_API_CALL(env, napi_create_uint32(env, (uint32_t)length, &output));
return output;
}
static napi_value TestLargeUtf8(napi_env env, napi_callback_info info) {
napi_value output;
if (SIZE_MAX > INT_MAX) {
NODE_API_CALL(
env, napi_create_string_utf8(env, "", ((size_t)INT_MAX) + 1, &output));
} else {
// just throw the expected error as there is nothing to test
// in this case since we can't overflow
NODE_API_CALL(env, napi_throw_error(env, NULL, "Invalid argument"));
}
return output;
}
static napi_value TestLargeLatin1(napi_env env, napi_callback_info info) {
napi_value output;
if (SIZE_MAX > INT_MAX) {
NODE_API_CALL(
env,
napi_create_string_latin1(env, "", ((size_t)INT_MAX) + 1, &output));
} else {
// just throw the expected error as there is nothing to test
// in this case since we can't overflow
NODE_API_CALL(env, napi_throw_error(env, NULL, "Invalid argument"));
}
return output;
}
static napi_value TestLargeUtf16(napi_env env, napi_callback_info info) {
napi_value output;
if (SIZE_MAX > INT_MAX) {
NODE_API_CALL(
env,
napi_create_string_utf16(
env, ((const char16_t*)""), ((size_t)INT_MAX) + 1, &output));
} else {
// just throw the expected error as there is nothing to test
// in this case since we can't overflow
NODE_API_CALL(env, napi_throw_error(env, NULL, "Invalid argument"));
}
return output;
}
static napi_value TestMemoryCorruption(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
char buf[10] = {0};
NODE_API_CALL(env, napi_get_value_string_utf8(env, args[0], buf, 0, NULL));
char zero[10] = {0};
if (memcmp(buf, zero, sizeof(buf)) != 0) {
NODE_API_CALL(env, napi_throw_error(env, NULL, "Buffer overwritten"));
}
return NULL;
}
EXTERN_C_START
napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor properties[] = {
DECLARE_NODE_API_PROPERTY("TestLatin1", TestLatin1),
DECLARE_NODE_API_PROPERTY("TestLatin1AutoLength", TestLatin1AutoLength),
DECLARE_NODE_API_PROPERTY("TestLatin1External", TestLatin1External),
DECLARE_NODE_API_PROPERTY("TestLatin1ExternalAutoLength",
TestLatin1ExternalAutoLength),
DECLARE_NODE_API_PROPERTY("TestLatin1Insufficient",
TestLatin1Insufficient),
DECLARE_NODE_API_PROPERTY("TestUtf8", TestUtf8),
DECLARE_NODE_API_PROPERTY("TestUtf8AutoLength", TestUtf8AutoLength),
DECLARE_NODE_API_PROPERTY("TestUtf8Insufficient", TestUtf8Insufficient),
DECLARE_NODE_API_PROPERTY("TestUtf16", TestUtf16),
DECLARE_NODE_API_PROPERTY("TestUtf16AutoLength", TestUtf16AutoLength),
DECLARE_NODE_API_PROPERTY("TestUtf16External", TestUtf16External),
DECLARE_NODE_API_PROPERTY("TestUtf16ExternalAutoLength",
TestUtf16ExternalAutoLength),
DECLARE_NODE_API_PROPERTY("TestUtf16Insufficient", TestUtf16Insufficient),
DECLARE_NODE_API_PROPERTY("Latin1Length", Latin1Length),
DECLARE_NODE_API_PROPERTY("Utf16Length", Utf16Length),
DECLARE_NODE_API_PROPERTY("Utf8Length", Utf8Length),
DECLARE_NODE_API_PROPERTY("TestLargeUtf8", TestLargeUtf8),
DECLARE_NODE_API_PROPERTY("TestLargeLatin1", TestLargeLatin1),
DECLARE_NODE_API_PROPERTY("TestLargeUtf16", TestLargeUtf16),
DECLARE_NODE_API_PROPERTY("TestMemoryCorruption", TestMemoryCorruption),
DECLARE_NODE_API_PROPERTY("TestPropertyKeyLatin1", TestPropertyKeyLatin1),
DECLARE_NODE_API_PROPERTY("TestPropertyKeyLatin1AutoLength",
TestPropertyKeyLatin1AutoLength),
DECLARE_NODE_API_PROPERTY("TestPropertyKeyUtf8", TestPropertyKeyUtf8),
DECLARE_NODE_API_PROPERTY("TestPropertyKeyUtf8AutoLength",
TestPropertyKeyUtf8AutoLength),
DECLARE_NODE_API_PROPERTY("TestPropertyKeyUtf16", TestPropertyKeyUtf16),
DECLARE_NODE_API_PROPERTY("TestPropertyKeyUtf16AutoLength",
TestPropertyKeyUtf16AutoLength),
};
init_test_null(env, exports);
NODE_API_CALL(
env,
napi_define_properties(
env, exports, sizeof(properties) / sizeof(*properties), properties));
return exports;
}
EXTERN_C_END
|
