… | |
… | |
6 | #include <string.h> |
6 | #include <string.h> |
7 | #include <stdlib.h> |
7 | #include <stdlib.h> |
8 | #include <stdio.h> |
8 | #include <stdio.h> |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
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|
11 | #include <inttypes.h> |
11 | |
12 | |
12 | #define ECB_NO_THREADS 1 |
13 | #define ECB_NO_THREADS 1 |
13 | #include "ecb.h" |
14 | #include "ecb.h" |
14 | |
15 | |
15 | // compatibility with perl <5.18 |
16 | // compatibility with perl <5.18 |
… | |
… | |
20 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
21 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
21 | #endif |
22 | #endif |
22 | #ifndef HvNAMEUTF8 |
23 | #ifndef HvNAMEUTF8 |
23 | # define HvNAMEUTF8(hv) 0 |
24 | # define HvNAMEUTF8(hv) 0 |
24 | #endif |
25 | #endif |
|
|
26 | #ifndef SvREFCNT_inc_NN |
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|
27 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
|
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28 | #endif |
25 | #ifndef SvREFCNT_dec_NN |
29 | #ifndef SvREFCNT_dec_NN |
26 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
30 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
27 | #endif |
31 | #endif |
28 | |
32 | |
29 | // known major and minor types |
33 | // known major and minor types |
… | |
… | |
95 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
99 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
96 | |
100 | |
97 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
101 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
98 | }; |
102 | }; |
99 | |
103 | |
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104 | // known forced types, also hardcoded in CBOR.pm |
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105 | enum |
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106 | { |
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107 | AS_CBOR = 0, |
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108 | AS_INT = 1, |
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109 | AS_BYTES = 2, |
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110 | AS_TEXT = 3, |
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111 | AS_FLOAT16 = 4, |
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112 | AS_FLOAT32 = 5, |
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113 | AS_FLOAT64 = 6, |
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114 | // possibly future enhancements: (generic) float, (generic) string |
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115 | }; |
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116 | |
100 | #define F_SHRINK 0x00000001UL |
117 | #define F_SHRINK 0x00000001UL |
101 | #define F_ALLOW_UNKNOWN 0x00000002UL |
118 | #define F_ALLOW_UNKNOWN 0x00000002UL |
102 | #define F_ALLOW_SHARING 0x00000004UL |
119 | #define F_ALLOW_SHARING 0x00000004UL |
103 | #define F_ALLOW_CYCLES 0x00000008UL |
120 | #define F_ALLOW_CYCLES 0x00000008UL |
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|
121 | #define F_FORBID_OBJECTS 0x00000010UL |
104 | #define F_PACK_STRINGS 0x00000010UL |
122 | #define F_PACK_STRINGS 0x00000020UL |
105 | #define F_TEXT_KEYS 0x00000020UL |
123 | #define F_TEXT_KEYS 0x00000040UL |
106 | #define F_TEXT_STRINGS 0x00000040UL |
124 | #define F_TEXT_STRINGS 0x00000080UL |
107 | #define F_VALIDATE_UTF8 0x00000080UL |
125 | #define F_VALIDATE_UTF8 0x00000100UL |
108 | |
126 | |
109 | #define INIT_SIZE 32 // initial scalar size to be allocated |
127 | #define INIT_SIZE 32 // initial scalar size to be allocated |
110 | |
128 | |
111 | #define SB do { |
129 | #define SB do { |
112 | #define SE } while (0) |
130 | #define SE } while (0) |
… | |
… | |
185 | |
203 | |
186 | // minimum length of a string to be registered for stringref |
204 | // minimum length of a string to be registered for stringref |
187 | ecb_inline int |
205 | ecb_inline int |
188 | minimum_string_length (UV idx) |
206 | minimum_string_length (UV idx) |
189 | { |
207 | { |
190 | return idx > 23 |
208 | return idx <= 23 ? 3 |
191 | ? idx > 0xffU |
209 | : idx <= 0xffU ? 4 |
192 | ? idx > 0xffffU |
210 | : idx <= 0xffffU ? 5 |
193 | ? idx > 0xffffffffU |
211 | : idx <= 0xffffffffU ? 7 |
194 | ? 11 |
212 | : 11; |
195 | : 7 |
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196 | : 5 |
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197 | : 4 |
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198 | : 3; |
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199 | } |
213 | } |
200 | |
214 | |
201 | ///////////////////////////////////////////////////////////////////////////// |
215 | ///////////////////////////////////////////////////////////////////////////// |
202 | // encoder |
216 | // encoder |
203 | |
217 | |
… | |
… | |
216 | } enc_t; |
230 | } enc_t; |
217 | |
231 | |
218 | ecb_inline void |
232 | ecb_inline void |
219 | need (enc_t *enc, STRLEN len) |
233 | need (enc_t *enc, STRLEN len) |
220 | { |
234 | { |
221 | if (ecb_expect_false (enc->cur + len >= enc->end)) |
235 | if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len)) |
222 | { |
236 | { |
223 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
237 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
224 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
238 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
225 | enc->cur = SvPVX (enc->sv) + cur; |
239 | enc->cur = SvPVX (enc->sv) + cur; |
226 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
240 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
… | |
… | |
232 | { |
246 | { |
233 | need (enc, 1); |
247 | need (enc, 1); |
234 | *enc->cur++ = ch; |
248 | *enc->cur++ = ch; |
235 | } |
249 | } |
236 | |
250 | |
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251 | // used for tags, intregers, element counts and so on |
237 | static void |
252 | static void |
238 | encode_uint (enc_t *enc, int major, UV len) |
253 | encode_uint (enc_t *enc, int major, UV len) |
239 | { |
254 | { |
240 | need (enc, 9); |
255 | need (enc, 9); |
241 | |
256 | |
… | |
… | |
272 | *enc->cur++ = len >> 8; |
287 | *enc->cur++ = len >> 8; |
273 | *enc->cur++ = len; |
288 | *enc->cur++ = len; |
274 | } |
289 | } |
275 | } |
290 | } |
276 | |
291 | |
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292 | // encodes a perl value into a CBOR integer |
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293 | ecb_inline void |
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294 | encode_int (enc_t *enc, SV *sv) |
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295 | { |
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296 | if (SvIsUV (sv)) |
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297 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
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298 | else if (SvIVX (sv) >= 0) |
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299 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
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300 | else |
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301 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
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302 | } |
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303 | |
277 | ecb_inline void |
304 | ecb_inline void |
278 | encode_tag (enc_t *enc, UV tag) |
305 | encode_tag (enc_t *enc, UV tag) |
279 | { |
306 | { |
280 | encode_uint (enc, MAJOR_TAG, tag); |
307 | encode_uint (enc, MAJOR_TAG, tag); |
281 | } |
308 | } |
… | |
… | |
342 | } |
369 | } |
343 | |
370 | |
344 | encode_str (enc, upgrade_utf8, utf8, str, len); |
371 | encode_str (enc, upgrade_utf8, utf8, str, len); |
345 | } |
372 | } |
346 | |
373 | |
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374 | ecb_inline void |
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375 | encode_float16 (enc_t *enc, NV nv) |
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376 | { |
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377 | need (enc, 1+2); |
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378 | |
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379 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT16; |
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380 | |
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381 | uint16_t fp = ecb_float_to_binary16 (nv); |
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382 | |
|
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383 | if (!ecb_big_endian ()) |
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384 | fp = ecb_bswap16 (fp); |
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385 | |
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386 | memcpy (enc->cur, &fp, 2); |
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387 | enc->cur += 2; |
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388 | } |
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389 | |
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390 | ecb_inline void |
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391 | encode_float32 (enc_t *enc, NV nv) |
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392 | { |
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393 | need (enc, 1+4); |
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394 | |
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395 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
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396 | |
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397 | uint32_t fp = ecb_float_to_binary32 (nv); |
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398 | |
|
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399 | if (!ecb_big_endian ()) |
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400 | fp = ecb_bswap32 (fp); |
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401 | |
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402 | memcpy (enc->cur, &fp, 4); |
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403 | enc->cur += 4; |
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404 | } |
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405 | |
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406 | ecb_inline void |
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407 | encode_float64 (enc_t *enc, NV nv) |
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408 | { |
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409 | need (enc, 1+8); |
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410 | |
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411 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
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412 | |
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413 | uint64_t fp = ecb_double_to_binary64 (nv); |
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414 | |
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415 | if (!ecb_big_endian ()) |
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416 | fp = ecb_bswap64 (fp); |
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417 | |
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418 | memcpy (enc->cur, &fp, 8); |
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419 | enc->cur += 8; |
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420 | } |
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421 | |
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422 | ecb_inline void |
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423 | encode_forced (enc_t *enc, UV type, SV *sv) |
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424 | { |
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425 | switch (type) |
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426 | { |
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427 | case AS_CBOR: |
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428 | { |
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429 | STRLEN len; |
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430 | char *str = SvPVbyte (sv, len); |
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431 | |
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432 | need (enc, len); |
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433 | memcpy (enc->cur, str, len); |
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434 | enc->cur += len; |
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435 | } |
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436 | break; |
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437 | |
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438 | case AS_BYTES: |
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439 | { |
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440 | STRLEN len; |
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441 | char *str = SvPVbyte (sv, len); |
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442 | encode_strref (enc, 0, 0, str, len); |
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443 | } |
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444 | break; |
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445 | |
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446 | case AS_TEXT: |
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447 | { |
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448 | STRLEN len; |
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449 | char *str = SvPVutf8 (sv, len); |
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450 | encode_strref (enc, 1, 1, str, len); |
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451 | } |
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|
452 | break; |
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453 | |
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454 | case AS_INT: encode_int (enc, sv); break; |
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455 | case AS_FLOAT16: encode_float16 (enc, SvNV (sv)); break; |
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456 | case AS_FLOAT32: encode_float32 (enc, SvNV (sv)); break; |
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|
457 | case AS_FLOAT64: encode_float64 (enc, SvNV (sv)); break; |
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458 | |
|
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459 | default: |
|
|
460 | croak ("encountered malformed CBOR::XS::Tagged object"); |
|
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461 | } |
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462 | } |
|
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463 | |
347 | static void encode_sv (enc_t *enc, SV *sv); |
464 | static void encode_sv (enc_t *enc, SV *sv); |
348 | |
465 | |
349 | static void |
466 | static void |
350 | encode_av (enc_t *enc, AV *av) |
467 | encode_av (enc_t *enc, AV *av) |
351 | { |
468 | { |
… | |
… | |
356 | |
473 | |
357 | ++enc->depth; |
474 | ++enc->depth; |
358 | |
475 | |
359 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
476 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
360 | |
477 | |
361 | if (SvMAGICAL (av)) |
478 | if (ecb_expect_false (SvMAGICAL (av))) |
362 | for (i = 0; i <= len; ++i) |
479 | for (i = 0; i <= len; ++i) |
363 | { |
480 | { |
364 | SV **svp = av_fetch (av, i, 0); |
481 | SV **svp = av_fetch (av, i, 0); |
365 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
482 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
366 | } |
483 | } |
… | |
… | |
385 | ++enc->depth; |
502 | ++enc->depth; |
386 | |
503 | |
387 | int pairs = hv_iterinit (hv); |
504 | int pairs = hv_iterinit (hv); |
388 | int mg = SvMAGICAL (hv); |
505 | int mg = SvMAGICAL (hv); |
389 | |
506 | |
390 | if (mg) |
507 | if (ecb_expect_false (mg)) |
391 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
508 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
392 | else |
509 | else |
393 | encode_uint (enc, MAJOR_MAP, pairs); |
510 | encode_uint (enc, MAJOR_MAP, pairs); |
394 | |
511 | |
395 | while ((he = hv_iternext (hv))) |
512 | while ((he = hv_iternext (hv))) |
… | |
… | |
400 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
517 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
401 | |
518 | |
402 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
519 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
403 | } |
520 | } |
404 | |
521 | |
405 | if (mg) |
522 | if (ecb_expect_false (mg)) |
406 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
523 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
407 | |
524 | |
408 | --enc->depth; |
525 | --enc->depth; |
409 | } |
526 | } |
410 | |
527 | |
… | |
… | |
443 | else if (stash == tagged_stash) |
560 | else if (stash == tagged_stash) |
444 | { |
561 | { |
445 | if (svt != SVt_PVAV) |
562 | if (svt != SVt_PVAV) |
446 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
563 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
447 | |
564 | |
|
|
565 | switch (av_len ((AV *)sv)) |
|
|
566 | { |
|
|
567 | case 2-1: |
|
|
568 | // actually a tagged value |
448 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
569 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
449 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
570 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
|
|
571 | break; |
|
|
572 | |
|
|
573 | case 3-1: |
|
|
574 | // a forced type [value, type, undef] |
|
|
575 | encode_forced (enc, SvUV (*av_fetch ((AV *)sv, 1, 1)), *av_fetch ((AV *)sv, 0, 1)); |
|
|
576 | break; |
|
|
577 | |
|
|
578 | default: |
|
|
579 | croak ("encountered malformed CBOR::XS::Tagged object"); |
|
|
580 | } |
450 | |
581 | |
451 | return; |
582 | return; |
452 | } |
583 | } |
453 | } |
584 | } |
454 | |
585 | |
455 | if (ecb_expect_false (SvREFCNT (sv) > 1) |
586 | if (ecb_expect_false (SvREFCNT (sv) > 1) |
456 | && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
587 | && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
457 | { |
588 | { |
458 | if (!enc->shareable) |
589 | if (ecb_expect_false (!enc->shareable)) |
459 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
590 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
460 | |
591 | |
461 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
592 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
462 | |
593 | |
463 | if (SvOK (*svp)) |
594 | if (SvOK (*svp)) |
… | |
… | |
477 | if (ecb_expect_false (SvOBJECT (sv))) |
608 | if (ecb_expect_false (SvOBJECT (sv))) |
478 | { |
609 | { |
479 | HV *stash = SvSTASH (sv); |
610 | HV *stash = SvSTASH (sv); |
480 | GV *method; |
611 | GV *method; |
481 | |
612 | |
|
|
613 | if (enc->cbor.flags & F_FORBID_OBJECTS) |
|
|
614 | croak ("encountered object '%s', but forbid_objects is enabled", |
|
|
615 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
482 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
616 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
483 | { |
617 | { |
484 | dSP; |
618 | dSP; |
485 | |
619 | |
486 | ENTER; SAVETMPS; |
620 | ENTER; SAVETMPS; |
487 | PUSHMARK (SP); |
621 | PUSHMARK (SP); |
… | |
… | |
506 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
640 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
507 | { |
641 | { |
508 | dSP; |
642 | dSP; |
509 | |
643 | |
510 | ENTER; SAVETMPS; |
644 | ENTER; SAVETMPS; |
511 | SAVESTACK_POS (); |
|
|
512 | PUSHMARK (SP); |
645 | PUSHMARK (SP); |
513 | EXTEND (SP, 2); |
646 | EXTEND (SP, 2); |
514 | // we re-bless the reference to get overload and other niceties right |
647 | // we re-bless the reference to get overload and other niceties right |
515 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
648 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
516 | PUSHs (sv_cbor); |
649 | PUSHs (sv_cbor); |
… | |
… | |
525 | |
658 | |
526 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
659 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
527 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
660 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
528 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
661 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
529 | |
662 | |
530 | while (count) |
663 | { |
|
|
664 | int i; |
|
|
665 | |
|
|
666 | for (i = 0; i < count; ++i) |
531 | encode_sv (enc, SP[1 - count--]); |
667 | encode_sv (enc, SP[i + 1 - count]); |
|
|
668 | |
|
|
669 | SP -= count; |
|
|
670 | } |
532 | |
671 | |
533 | PUTBACK; |
672 | PUTBACK; |
534 | |
673 | |
535 | FREETMPS; LEAVE; |
674 | FREETMPS; LEAVE; |
536 | } |
675 | } |
… | |
… | |
558 | |
697 | |
559 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
698 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
560 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
699 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
561 | //TODO: maybe I32? |
700 | //TODO: maybe I32? |
562 | else if (ecb_expect_false (nv == (float)nv)) |
701 | else if (ecb_expect_false (nv == (float)nv)) |
563 | { |
702 | encode_float32 (enc, nv); |
564 | uint32_t fp = ecb_float_to_binary32 (nv); |
|
|
565 | |
|
|
566 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
|
|
567 | |
|
|
568 | if (!ecb_big_endian ()) |
|
|
569 | fp = ecb_bswap32 (fp); |
|
|
570 | |
|
|
571 | memcpy (enc->cur, &fp, 4); |
|
|
572 | enc->cur += 4; |
|
|
573 | } |
|
|
574 | else |
703 | else |
575 | { |
704 | encode_float64 (enc, nv); |
576 | uint64_t fp = ecb_double_to_binary64 (nv); |
|
|
577 | |
|
|
578 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
|
|
579 | |
|
|
580 | if (!ecb_big_endian ()) |
|
|
581 | fp = ecb_bswap64 (fp); |
|
|
582 | |
|
|
583 | memcpy (enc->cur, &fp, 8); |
|
|
584 | enc->cur += 8; |
|
|
585 | } |
|
|
586 | } |
705 | } |
587 | |
706 | |
588 | static void |
707 | static void |
589 | encode_sv (enc_t *enc, SV *sv) |
708 | encode_sv (enc_t *enc, SV *sv) |
590 | { |
709 | { |
… | |
… | |
597 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
716 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
598 | } |
717 | } |
599 | else if (SvNOKp (sv)) |
718 | else if (SvNOKp (sv)) |
600 | encode_nv (enc, sv); |
719 | encode_nv (enc, sv); |
601 | else if (SvIOKp (sv)) |
720 | else if (SvIOKp (sv)) |
602 | { |
721 | encode_int (enc, sv); |
603 | if (SvIsUV (sv)) |
|
|
604 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
|
|
605 | else if (SvIVX (sv) >= 0) |
|
|
606 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
|
|
607 | else |
|
|
608 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
|
|
609 | } |
|
|
610 | else if (SvROK (sv)) |
722 | else if (SvROK (sv)) |
611 | encode_rv (enc, SvRV (sv)); |
723 | encode_rv (enc, SvRV (sv)); |
612 | else if (!SvOK (sv)) |
724 | else if (!SvOK (sv)) |
613 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
725 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
614 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
726 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
… | |
… | |
621 | static SV * |
733 | static SV * |
622 | encode_cbor (SV *scalar, CBOR *cbor) |
734 | encode_cbor (SV *scalar, CBOR *cbor) |
623 | { |
735 | { |
624 | enc_t enc = { 0 }; |
736 | enc_t enc = { 0 }; |
625 | |
737 | |
626 | enc.cbor = *cbor; |
738 | enc.cbor = *cbor; |
627 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
739 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
628 | enc.cur = SvPVX (enc.sv); |
740 | enc.cur = SvPVX (enc.sv); |
629 | enc.end = SvEND (enc.sv); |
741 | enc.end = SvEND (enc.sv); |
630 | |
742 | |
631 | SvPOK_only (enc.sv); |
743 | SvPOK_only (enc.sv); |
632 | |
744 | |
633 | if (cbor->flags & F_PACK_STRINGS) |
745 | if (cbor->flags & F_PACK_STRINGS) |
634 | { |
746 | { |
… | |
… | |
661 | U32 depth; // recursion depth |
773 | U32 depth; // recursion depth |
662 | U32 maxdepth; // recursion depth limit |
774 | U32 maxdepth; // recursion depth limit |
663 | AV *shareable; |
775 | AV *shareable; |
664 | AV *stringref; |
776 | AV *stringref; |
665 | SV *decode_tagged; |
777 | SV *decode_tagged; |
|
|
778 | SV *err_sv; // optional sv for error, needs to be freed |
666 | } dec_t; |
779 | } dec_t; |
667 | |
780 | |
668 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
781 | // set dec->err to ERRSV |
|
|
782 | ecb_cold static void |
|
|
783 | err_errsv (dec_t *dec) |
|
|
784 | { |
|
|
785 | if (!dec->err) |
|
|
786 | { |
|
|
787 | dec->err_sv = newSVsv (ERRSV); |
669 | |
788 | |
670 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
789 | // chop off the trailing \n |
|
|
790 | SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1); |
|
|
791 | *SvEND (dec->err_sv) = 0; |
|
|
792 | |
|
|
793 | dec->err = SvPVutf8_nolen (dec->err_sv); |
|
|
794 | } |
|
|
795 | } |
|
|
796 | |
|
|
797 | // the following functions are used to reduce code size and help the compiler to optimise |
|
|
798 | ecb_cold static void |
|
|
799 | err_set (dec_t *dec, const char *reason) |
|
|
800 | { |
|
|
801 | if (!dec->err) |
|
|
802 | dec->err = reason; |
|
|
803 | } |
|
|
804 | |
|
|
805 | ecb_cold static void |
|
|
806 | err_unexpected_end (dec_t *dec) |
|
|
807 | { |
|
|
808 | err_set (dec, "unexpected end of CBOR data"); |
|
|
809 | } |
|
|
810 | |
|
|
811 | #define ERR_DO(do) SB do; goto fail; SE |
|
|
812 | #define ERR(reason) ERR_DO (err_set (dec, reason)) |
|
|
813 | #define ERR_ERRSV ERR_DO (err_errsv (dec)) |
|
|
814 | |
|
|
815 | #define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec)) |
671 | |
816 | |
672 | #define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
817 | #define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
673 | #define DEC_DEC_DEPTH --dec->depth |
818 | #define DEC_DEC_DEPTH --dec->depth |
674 | |
819 | |
675 | static UV |
820 | static UV |
… | |
… | |
743 | |
888 | |
744 | for (;;) |
889 | for (;;) |
745 | { |
890 | { |
746 | WANT (1); |
891 | WANT (1); |
747 | |
892 | |
748 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
893 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
749 | { |
894 | { |
750 | ++dec->cur; |
895 | ++dec->cur; |
751 | break; |
896 | break; |
752 | } |
897 | } |
753 | |
898 | |
754 | av_push (av, decode_sv (dec)); |
899 | av_push (av, decode_sv (dec)); |
755 | } |
900 | } |
756 | } |
901 | } |
757 | else |
902 | else |
758 | { |
903 | { |
759 | int i, len = decode_uint (dec); |
904 | UV i, len = decode_uint (dec); |
760 | |
905 | |
761 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
906 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
762 | av_fill (av, len - 1); |
907 | av_fill (av, len - 1); |
763 | |
908 | |
764 | for (i = 0; i < len; ++i) |
909 | for (i = 0; i < len; ++i) |
… | |
… | |
767 | |
912 | |
768 | DEC_DEC_DEPTH; |
913 | DEC_DEC_DEPTH; |
769 | return newRV_noinc ((SV *)av); |
914 | return newRV_noinc ((SV *)av); |
770 | |
915 | |
771 | fail: |
916 | fail: |
772 | SvREFCNT_dec (av); |
917 | SvREFCNT_dec_NN (av); |
773 | DEC_DEC_DEPTH; |
918 | DEC_DEC_DEPTH; |
774 | return &PL_sv_undef; |
919 | return &PL_sv_undef; |
775 | } |
920 | } |
776 | |
921 | |
777 | static void |
922 | static void |
… | |
… | |
811 | } |
956 | } |
812 | |
957 | |
813 | SV *k = decode_sv (dec); |
958 | SV *k = decode_sv (dec); |
814 | SV *v = decode_sv (dec); |
959 | SV *v = decode_sv (dec); |
815 | |
960 | |
|
|
961 | // we leak memory if uncaught exceptions are thrown by random magical |
|
|
962 | // methods, and this is hopefully the only place where it can happen, |
|
|
963 | // so if there is a chance of an exception, take the very slow path. |
|
|
964 | // since catching exceptions is "undocumented/internal/forbidden" by |
|
|
965 | // the new p5p powers, we need to call out to a perl function :/ |
|
|
966 | if (ecb_expect_false (SvAMAGIC (k))) |
|
|
967 | { |
|
|
968 | dSP; |
|
|
969 | |
|
|
970 | ENTER; SAVETMPS; |
|
|
971 | PUSHMARK (SP); |
|
|
972 | EXTEND (SP, 3); |
|
|
973 | PUSHs (sv_2mortal (newRV_inc ((SV *)hv))); |
|
|
974 | PUSHs (sv_2mortal (k)); |
|
|
975 | PUSHs (sv_2mortal (v)); |
|
|
976 | |
|
|
977 | PUTBACK; |
|
|
978 | call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL); |
|
|
979 | SPAGAIN; |
|
|
980 | |
|
|
981 | FREETMPS; LEAVE; |
|
|
982 | |
|
|
983 | if (SvTRUE (ERRSV)) |
|
|
984 | ERR_ERRSV; |
|
|
985 | |
|
|
986 | return; |
|
|
987 | } |
|
|
988 | |
816 | hv_store_ent (hv, k, v, 0); |
989 | hv_store_ent (hv, k, v, 0); |
817 | SvREFCNT_dec (k); |
990 | SvREFCNT_dec_NN (k); |
818 | |
991 | |
819 | fail: |
992 | fail: |
820 | ; |
993 | ; |
821 | } |
994 | } |
822 | |
995 | |
… | |
… | |
833 | |
1006 | |
834 | for (;;) |
1007 | for (;;) |
835 | { |
1008 | { |
836 | WANT (1); |
1009 | WANT (1); |
837 | |
1010 | |
838 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
1011 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
839 | { |
1012 | { |
840 | ++dec->cur; |
1013 | ++dec->cur; |
841 | break; |
1014 | break; |
842 | } |
1015 | } |
843 | |
1016 | |
844 | decode_he (dec, hv); |
1017 | decode_he (dec, hv); |
845 | } |
1018 | } |
846 | } |
1019 | } |
847 | else |
1020 | else |
848 | { |
1021 | { |
849 | int pairs = decode_uint (dec); |
1022 | UV pairs = decode_uint (dec); |
|
|
1023 | |
|
|
1024 | WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes |
850 | |
1025 | |
851 | while (pairs--) |
1026 | while (pairs--) |
852 | decode_he (dec, hv); |
1027 | decode_he (dec, hv); |
853 | } |
1028 | } |
854 | |
1029 | |
855 | DEC_DEC_DEPTH; |
1030 | DEC_DEC_DEPTH; |
856 | return newRV_noinc ((SV *)hv); |
1031 | return newRV_noinc ((SV *)hv); |
857 | |
1032 | |
858 | fail: |
1033 | fail: |
859 | SvREFCNT_dec (hv); |
1034 | SvREFCNT_dec_NN (hv); |
860 | DEC_DEC_DEPTH; |
1035 | DEC_DEC_DEPTH; |
861 | return &PL_sv_undef; |
1036 | return &PL_sv_undef; |
862 | } |
1037 | } |
863 | |
1038 | |
864 | static SV * |
1039 | static SV * |
865 | decode_str (dec_t *dec, int utf8) |
1040 | decode_str (dec_t *dec, int utf8) |
866 | { |
1041 | { |
867 | SV *sv = 0; |
1042 | SV *sv = 0; |
868 | |
1043 | |
869 | if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
1044 | if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF)) |
870 | { |
1045 | { |
871 | // indefinite length strings |
1046 | // indefinite length strings |
872 | ++dec->cur; |
1047 | ++dec->cur; |
873 | |
1048 | |
874 | U8 major = *dec->cur & MAJOR_MISC; |
1049 | U8 major = *dec->cur & MAJOR_MISC; |
… | |
… | |
942 | sv = newRV_noinc (decode_sv (dec)); |
1117 | sv = newRV_noinc (decode_sv (dec)); |
943 | break; |
1118 | break; |
944 | |
1119 | |
945 | case CBOR_TAG_STRINGREF_NAMESPACE: |
1120 | case CBOR_TAG_STRINGREF_NAMESPACE: |
946 | { |
1121 | { |
947 | // do nmot use SAVETMPS/FREETMPS, as these will |
1122 | // do not use SAVETMPS/FREETMPS, as these will |
948 | // erase mortalised caches, e.g. "shareable" |
1123 | // erase mortalised caches, e.g. "shareable" |
949 | ENTER; |
1124 | ENTER; |
950 | |
1125 | |
951 | SAVESPTR (dec->stringref); |
1126 | SAVESPTR (dec->stringref); |
952 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
1127 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
… | |
… | |
962 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
1137 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
963 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
1138 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
964 | |
1139 | |
965 | UV idx = decode_uint (dec); |
1140 | UV idx = decode_uint (dec); |
966 | |
1141 | |
967 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
1142 | if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref))) |
968 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
1143 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
969 | |
1144 | |
970 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
1145 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
971 | } |
1146 | } |
972 | break; |
1147 | break; |
… | |
… | |
1000 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
1175 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
1001 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
1176 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
1002 | |
1177 | |
1003 | UV idx = decode_uint (dec); |
1178 | UV idx = decode_uint (dec); |
1004 | |
1179 | |
1005 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
1180 | if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable))) |
1006 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
1181 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
1007 | |
1182 | |
1008 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
1183 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
1009 | |
1184 | |
1010 | if (sv == &PL_sv_undef) |
1185 | if (sv == &PL_sv_undef) |
… | |
… | |
1012 | } |
1187 | } |
1013 | break; |
1188 | break; |
1014 | |
1189 | |
1015 | case CBOR_TAG_PERL_OBJECT: |
1190 | case CBOR_TAG_PERL_OBJECT: |
1016 | { |
1191 | { |
|
|
1192 | if (dec->cbor.flags & F_FORBID_OBJECTS) |
|
|
1193 | goto filter; |
|
|
1194 | |
1017 | sv = decode_sv (dec); |
1195 | sv = decode_sv (dec); |
1018 | |
1196 | |
1019 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
1197 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
1020 | ERR ("corrupted CBOR data (non-array perl object)"); |
1198 | ERR ("corrupted CBOR data (non-array perl object)"); |
1021 | |
1199 | |
… | |
… | |
1050 | SPAGAIN; |
1228 | SPAGAIN; |
1051 | |
1229 | |
1052 | if (SvTRUE (ERRSV)) |
1230 | if (SvTRUE (ERRSV)) |
1053 | { |
1231 | { |
1054 | FREETMPS; LEAVE; |
1232 | FREETMPS; LEAVE; |
1055 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
1233 | ERR_ERRSV; |
1056 | } |
1234 | } |
1057 | |
1235 | |
1058 | SvREFCNT_dec (sv); |
1236 | SvREFCNT_dec_NN (sv); |
1059 | sv = SvREFCNT_inc (POPs); |
1237 | sv = SvREFCNT_inc (POPs); |
1060 | |
1238 | |
1061 | PUTBACK; |
1239 | PUTBACK; |
1062 | |
1240 | |
1063 | FREETMPS; LEAVE; |
1241 | FREETMPS; LEAVE; |
1064 | } |
1242 | } |
1065 | break; |
1243 | break; |
1066 | |
1244 | |
1067 | default: |
1245 | default: |
|
|
1246 | filter: |
1068 | { |
1247 | { |
|
|
1248 | SV *tag_sv = newSVuv (tag); |
|
|
1249 | |
1069 | sv = decode_sv (dec); |
1250 | sv = decode_sv (dec); |
1070 | |
1251 | |
1071 | dSP; |
1252 | dSP; |
1072 | ENTER; SAVETMPS; |
1253 | ENTER; SAVETMPS; |
1073 | SAVESTACK_POS (); |
|
|
1074 | PUSHMARK (SP); |
1254 | PUSHMARK (SP); |
1075 | EXTEND (SP, 2); |
1255 | EXTEND (SP, 2); |
1076 | PUSHs (newSVuv (tag)); |
1256 | PUSHs (tag_sv); |
1077 | PUSHs (sv); |
1257 | PUSHs (sv); |
1078 | |
1258 | |
1079 | PUTBACK; |
1259 | PUTBACK; |
1080 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
1260 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
1081 | SPAGAIN; |
1261 | SPAGAIN; |
1082 | |
1262 | |
1083 | if (SvTRUE (ERRSV)) |
1263 | if (SvTRUE (ERRSV)) |
1084 | { |
1264 | { |
|
|
1265 | SvREFCNT_dec_NN (tag_sv); |
1085 | FREETMPS; LEAVE; |
1266 | FREETMPS; LEAVE; |
1086 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
1267 | ERR_ERRSV; |
1087 | } |
1268 | } |
1088 | |
1269 | |
1089 | if (count) |
1270 | if (count) |
1090 | { |
1271 | { |
|
|
1272 | SvREFCNT_dec_NN (tag_sv); |
1091 | SvREFCNT_dec (sv); |
1273 | SvREFCNT_dec_NN (sv); |
1092 | sv = SvREFCNT_inc (POPs); |
1274 | sv = SvREFCNT_inc_NN (TOPs); |
|
|
1275 | SP -= count; |
1093 | } |
1276 | } |
1094 | else |
1277 | else |
1095 | { |
1278 | { |
1096 | AV *av = newAV (); |
1279 | AV *av = newAV (); |
1097 | av_push (av, newSVuv (tag)); |
1280 | av_push (av, tag_sv); |
1098 | av_push (av, sv); |
1281 | av_push (av, sv); |
1099 | |
1282 | |
1100 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1283 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1101 | ? cbor_tagged_stash |
1284 | ? cbor_tagged_stash |
1102 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
1285 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
… | |
… | |
1231 | |
1414 | |
1232 | if (dec.err) |
1415 | if (dec.err) |
1233 | { |
1416 | { |
1234 | if (dec.shareable) |
1417 | if (dec.shareable) |
1235 | { |
1418 | { |
1236 | // need to break cyclic links, which whould all be in shareable |
1419 | // need to break cyclic links, which would all be in shareable |
1237 | int i; |
1420 | int i; |
1238 | SV **svp; |
1421 | SV **svp; |
1239 | |
1422 | |
1240 | for (i = av_len (dec.shareable) + 1; i--; ) |
1423 | for (i = av_len (dec.shareable) + 1; i--; ) |
1241 | if ((svp = av_fetch (dec.shareable, i, 0))) |
1424 | if ((svp = av_fetch (dec.shareable, i, 0))) |
1242 | sv_setsv (*svp, &PL_sv_undef); |
1425 | sv_setsv (*svp, &PL_sv_undef); |
1243 | } |
1426 | } |
1244 | |
1427 | |
1245 | SvREFCNT_dec (sv); |
1428 | SvREFCNT_dec_NN (sv); |
|
|
1429 | |
|
|
1430 | if (dec.err_sv) |
|
|
1431 | sv_2mortal (dec.err_sv); |
|
|
1432 | |
1246 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1433 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1247 | } |
1434 | } |
1248 | |
1435 | |
1249 | sv = sv_2mortal (sv); |
1436 | sv = sv_2mortal (sv); |
1250 | |
1437 | |
… | |
… | |
1425 | ALIAS: |
1612 | ALIAS: |
1426 | shrink = F_SHRINK |
1613 | shrink = F_SHRINK |
1427 | allow_unknown = F_ALLOW_UNKNOWN |
1614 | allow_unknown = F_ALLOW_UNKNOWN |
1428 | allow_sharing = F_ALLOW_SHARING |
1615 | allow_sharing = F_ALLOW_SHARING |
1429 | allow_cycles = F_ALLOW_CYCLES |
1616 | allow_cycles = F_ALLOW_CYCLES |
|
|
1617 | forbid_objects = F_FORBID_OBJECTS |
1430 | pack_strings = F_PACK_STRINGS |
1618 | pack_strings = F_PACK_STRINGS |
1431 | text_keys = F_TEXT_KEYS |
1619 | text_keys = F_TEXT_KEYS |
1432 | text_strings = F_TEXT_STRINGS |
1620 | text_strings = F_TEXT_STRINGS |
1433 | validate_utf8 = F_VALIDATE_UTF8 |
1621 | validate_utf8 = F_VALIDATE_UTF8 |
1434 | PPCODE: |
1622 | PPCODE: |
… | |
… | |
1445 | ALIAS: |
1633 | ALIAS: |
1446 | get_shrink = F_SHRINK |
1634 | get_shrink = F_SHRINK |
1447 | get_allow_unknown = F_ALLOW_UNKNOWN |
1635 | get_allow_unknown = F_ALLOW_UNKNOWN |
1448 | get_allow_sharing = F_ALLOW_SHARING |
1636 | get_allow_sharing = F_ALLOW_SHARING |
1449 | get_allow_cycles = F_ALLOW_CYCLES |
1637 | get_allow_cycles = F_ALLOW_CYCLES |
|
|
1638 | get_forbid_objects = F_FORBID_OBJECTS |
1450 | get_pack_strings = F_PACK_STRINGS |
1639 | get_pack_strings = F_PACK_STRINGS |
1451 | get_text_keys = F_TEXT_KEYS |
1640 | get_text_keys = F_TEXT_KEYS |
1452 | get_text_strings = F_TEXT_STRINGS |
1641 | get_text_strings = F_TEXT_STRINGS |
1453 | get_validate_utf8 = F_VALIDATE_UTF8 |
1642 | get_validate_utf8 = F_VALIDATE_UTF8 |
1454 | PPCODE: |
1643 | PPCODE: |
… | |
… | |
1587 | cbor_init (&cbor); |
1776 | cbor_init (&cbor); |
1588 | PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1777 | PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1589 | XPUSHs (cborstr); |
1778 | XPUSHs (cborstr); |
1590 | } |
1779 | } |
1591 | |
1780 | |
|
|
1781 | #ifdef __AFL_COMPILER |
|
|
1782 | |
|
|
1783 | void |
|
|
1784 | afl_init () |
|
|
1785 | CODE: |
|
|
1786 | __AFL_INIT (); |
|
|
1787 | |
|
|
1788 | int |
|
|
1789 | afl_loop (unsigned int count = 10000) |
|
|
1790 | CODE: |
|
|
1791 | RETVAL = __AFL_LOOP (count); |
|
|
1792 | OUTPUT: |
|
|
1793 | RETVAL |
|
|
1794 | |
|
|
1795 | #endif |
|
|
1796 | |