1 |
#include "EXTERN.h" |
2 |
#include "perl.h" |
3 |
#include "XSUB.h" |
4 |
|
5 |
#include <assert.h> |
6 |
#include <string.h> |
7 |
#include <stdlib.h> |
8 |
#include <stdio.h> |
9 |
#include <limits.h> |
10 |
#include <float.h> |
11 |
#include <inttypes.h> |
12 |
|
13 |
#define ECB_NO_THREADS 1 |
14 |
#include "ecb.h" |
15 |
|
16 |
// compatibility with perl <5.18 |
17 |
#ifndef HvNAMELEN_get |
18 |
# define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
19 |
#endif |
20 |
#ifndef HvNAMELEN |
21 |
# define HvNAMELEN(hv) HvNAMELEN_get (hv) |
22 |
#endif |
23 |
#ifndef HvNAMEUTF8 |
24 |
# define HvNAMEUTF8(hv) 0 |
25 |
#endif |
26 |
#ifndef SvREFCNT_inc_NN |
27 |
# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
28 |
#endif |
29 |
#ifndef SvREFCNT_dec_NN |
30 |
# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
31 |
#endif |
32 |
|
33 |
// known major and minor types |
34 |
enum cbor_type |
35 |
{ |
36 |
MAJOR_SHIFT = 5, |
37 |
MINOR_MASK = 0x1f, |
38 |
|
39 |
MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
40 |
MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
41 |
MAJOR_BYTES = 2 << MAJOR_SHIFT, |
42 |
MAJOR_TEXT = 3 << MAJOR_SHIFT, |
43 |
MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
44 |
MAJOR_MAP = 5 << MAJOR_SHIFT, |
45 |
MAJOR_TAG = 6 << MAJOR_SHIFT, |
46 |
MAJOR_MISC = 7 << MAJOR_SHIFT, |
47 |
|
48 |
// INT/STRING/ARRAY/MAP subtypes |
49 |
LENGTH_EXT1 = 24, |
50 |
LENGTH_EXT2 = 25, |
51 |
LENGTH_EXT4 = 26, |
52 |
LENGTH_EXT8 = 27, |
53 |
|
54 |
// SIMPLE types (effectively MISC subtypes) |
55 |
SIMPLE_FALSE = 20, |
56 |
SIMPLE_TRUE = 21, |
57 |
SIMPLE_NULL = 22, |
58 |
SIMPLE_UNDEF = 23, |
59 |
|
60 |
// MISC subtype (unused) |
61 |
MISC_EXT1 = 24, |
62 |
MISC_FLOAT16 = 25, |
63 |
MISC_FLOAT32 = 26, |
64 |
MISC_FLOAT64 = 27, |
65 |
|
66 |
// BYTES/TEXT/ARRAY/MAP |
67 |
MINOR_INDEF = 31, |
68 |
}; |
69 |
|
70 |
// known tags |
71 |
enum cbor_tag |
72 |
{ |
73 |
// extensions |
74 |
CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
75 |
CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
76 |
CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
77 |
CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
78 |
CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
79 |
CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
80 |
CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
81 |
|
82 |
// rfc7049 |
83 |
CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
84 |
CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
85 |
CBOR_TAG_POS_BIGNUM = 2, // byte string |
86 |
CBOR_TAG_NEG_BIGNUM = 3, // byte string |
87 |
CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
88 |
CBOR_TAG_BIGFLOAT = 5, // array |
89 |
|
90 |
CBOR_TAG_CONV_B64U = 21, // base64url, any |
91 |
CBOR_TAG_CONV_B64 = 22, // base64, any |
92 |
CBOR_TAG_CONV_HEX = 23, // base16, any |
93 |
CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
94 |
|
95 |
CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
96 |
CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
97 |
CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
98 |
CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
99 |
CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
100 |
|
101 |
CBOR_TAG_MAGIC = 55799, // self-describe cbor |
102 |
}; |
103 |
|
104 |
// known forced types, also hardcoded in CBOR.pm |
105 |
enum |
106 |
{ |
107 |
AS_CBOR = 0, |
108 |
AS_BYTES = 1, |
109 |
AS_TEXT = 2, |
110 |
AS_FLOAT16 = 3, |
111 |
AS_FLOAT32 = 4, |
112 |
AS_FLOAT64 = 5, |
113 |
// possibly future enhancements: float, integer |
114 |
}; |
115 |
|
116 |
#define F_SHRINK 0x00000001UL |
117 |
#define F_ALLOW_UNKNOWN 0x00000002UL |
118 |
#define F_ALLOW_SHARING 0x00000004UL |
119 |
#define F_ALLOW_CYCLES 0x00000008UL |
120 |
#define F_FORBID_OBJECTS 0x00000010UL |
121 |
#define F_PACK_STRINGS 0x00000020UL |
122 |
#define F_TEXT_KEYS 0x00000040UL |
123 |
#define F_TEXT_STRINGS 0x00000080UL |
124 |
#define F_VALIDATE_UTF8 0x00000100UL |
125 |
|
126 |
#define INIT_SIZE 32 // initial scalar size to be allocated |
127 |
|
128 |
#define SB do { |
129 |
#define SE } while (0) |
130 |
|
131 |
#define IN_RANGE_INC(type,val,beg,end) \ |
132 |
((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
133 |
<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
134 |
|
135 |
#define ERR_NESTING_EXCEEDED "cbor text or perl structure exceeds maximum nesting level (max_depth set too low?)" |
136 |
|
137 |
#ifdef USE_ITHREADS |
138 |
# define CBOR_SLOW 1 |
139 |
# define CBOR_STASH (cbor_stash ? cbor_stash : gv_stashpv ("CBOR::XS", 1)) |
140 |
#else |
141 |
# define CBOR_SLOW 0 |
142 |
# define CBOR_STASH cbor_stash |
143 |
#endif |
144 |
|
145 |
static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
146 |
static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
147 |
|
148 |
typedef struct { |
149 |
U32 flags; |
150 |
U32 max_depth; |
151 |
STRLEN max_size; |
152 |
SV *filter; |
153 |
|
154 |
// for the incremental parser |
155 |
STRLEN incr_pos; // the current offset into the text |
156 |
STRLEN incr_need; // minimum bytes needed to decode |
157 |
AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
158 |
} CBOR; |
159 |
|
160 |
ecb_inline void |
161 |
cbor_init (CBOR *cbor) |
162 |
{ |
163 |
Zero (cbor, 1, CBOR); |
164 |
cbor->max_depth = 512; |
165 |
} |
166 |
|
167 |
ecb_inline void |
168 |
cbor_free (CBOR *cbor) |
169 |
{ |
170 |
SvREFCNT_dec (cbor->filter); |
171 |
SvREFCNT_dec (cbor->incr_count); |
172 |
} |
173 |
|
174 |
///////////////////////////////////////////////////////////////////////////// |
175 |
// utility functions |
176 |
|
177 |
ecb_inline SV * |
178 |
get_bool (const char *name) |
179 |
{ |
180 |
SV *sv = get_sv (name, 1); |
181 |
|
182 |
SvREADONLY_on (sv); |
183 |
SvREADONLY_on (SvRV (sv)); |
184 |
|
185 |
return sv; |
186 |
} |
187 |
|
188 |
ecb_inline void |
189 |
shrink (SV *sv) |
190 |
{ |
191 |
sv_utf8_downgrade (sv, 1); |
192 |
|
193 |
if (SvLEN (sv) > SvCUR (sv) + 1) |
194 |
{ |
195 |
#ifdef SvPV_shrink_to_cur |
196 |
SvPV_shrink_to_cur (sv); |
197 |
#elif defined (SvPV_renew) |
198 |
SvPV_renew (sv, SvCUR (sv) + 1); |
199 |
#endif |
200 |
} |
201 |
} |
202 |
|
203 |
// minimum length of a string to be registered for stringref |
204 |
ecb_inline int |
205 |
minimum_string_length (UV idx) |
206 |
{ |
207 |
return idx <= 23 ? 3 |
208 |
: idx <= 0xffU ? 4 |
209 |
: idx <= 0xffffU ? 5 |
210 |
: idx <= 0xffffffffU ? 7 |
211 |
: 11; |
212 |
} |
213 |
|
214 |
///////////////////////////////////////////////////////////////////////////// |
215 |
// encoder |
216 |
|
217 |
// structure used for encoding CBOR |
218 |
typedef struct |
219 |
{ |
220 |
char *cur; // SvPVX (sv) + current output position |
221 |
char *end; // SvEND (sv) |
222 |
SV *sv; // result scalar |
223 |
CBOR cbor; |
224 |
U32 depth; // recursion level |
225 |
HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
226 |
UV stringref_idx; |
227 |
HV *shareable; // ptr => index, or 0 |
228 |
UV shareable_idx; |
229 |
} enc_t; |
230 |
|
231 |
ecb_inline void |
232 |
need (enc_t *enc, STRLEN len) |
233 |
{ |
234 |
if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len)) |
235 |
{ |
236 |
STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
237 |
SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
238 |
enc->cur = SvPVX (enc->sv) + cur; |
239 |
enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
240 |
} |
241 |
} |
242 |
|
243 |
ecb_inline void |
244 |
encode_ch (enc_t *enc, char ch) |
245 |
{ |
246 |
need (enc, 1); |
247 |
*enc->cur++ = ch; |
248 |
} |
249 |
|
250 |
// used for tags, intregers, element counts and so on |
251 |
static void |
252 |
encode_uint (enc_t *enc, int major, UV len) |
253 |
{ |
254 |
need (enc, 9); |
255 |
|
256 |
if (ecb_expect_true (len < LENGTH_EXT1)) |
257 |
*enc->cur++ = major | len; |
258 |
else if (ecb_expect_true (len <= 0xffU)) |
259 |
{ |
260 |
*enc->cur++ = major | LENGTH_EXT1; |
261 |
*enc->cur++ = len; |
262 |
} |
263 |
else if (len <= 0xffffU) |
264 |
{ |
265 |
*enc->cur++ = major | LENGTH_EXT2; |
266 |
*enc->cur++ = len >> 8; |
267 |
*enc->cur++ = len; |
268 |
} |
269 |
else if (len <= 0xffffffffU) |
270 |
{ |
271 |
*enc->cur++ = major | LENGTH_EXT4; |
272 |
*enc->cur++ = len >> 24; |
273 |
*enc->cur++ = len >> 16; |
274 |
*enc->cur++ = len >> 8; |
275 |
*enc->cur++ = len; |
276 |
} |
277 |
else |
278 |
{ |
279 |
*enc->cur++ = major | LENGTH_EXT8; |
280 |
*enc->cur++ = len >> 56; |
281 |
*enc->cur++ = len >> 48; |
282 |
*enc->cur++ = len >> 40; |
283 |
*enc->cur++ = len >> 32; |
284 |
*enc->cur++ = len >> 24; |
285 |
*enc->cur++ = len >> 16; |
286 |
*enc->cur++ = len >> 8; |
287 |
*enc->cur++ = len; |
288 |
} |
289 |
} |
290 |
|
291 |
// encodes a perl value into a CBOR integer |
292 |
ecb_inline |
293 |
encode_int (enc_t *enc, SV *sv) |
294 |
{ |
295 |
if (SvIsUV (sv)) |
296 |
encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
297 |
else if (SvIVX (sv) >= 0) |
298 |
encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
299 |
else |
300 |
encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
301 |
} |
302 |
|
303 |
ecb_inline void |
304 |
encode_tag (enc_t *enc, UV tag) |
305 |
{ |
306 |
encode_uint (enc, MAJOR_TAG, tag); |
307 |
} |
308 |
|
309 |
// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
310 |
ecb_noinline static void |
311 |
encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
312 |
{ |
313 |
STRLEN ulen = len; |
314 |
U8 *p, *pend = (U8 *)str + len; |
315 |
|
316 |
for (p = (U8 *)str; p < pend; ++p) |
317 |
ulen += *p >> 7; // count set high bits |
318 |
|
319 |
encode_uint (enc, MAJOR_TEXT, ulen); |
320 |
|
321 |
need (enc, ulen); |
322 |
for (p = (U8 *)str; p < pend; ++p) |
323 |
if (*p < 0x80) |
324 |
*enc->cur++ = *p; |
325 |
else |
326 |
{ |
327 |
*enc->cur++ = 0xc0 + (*p >> 6); |
328 |
*enc->cur++ = 0x80 + (*p & 63); |
329 |
} |
330 |
} |
331 |
|
332 |
ecb_inline void |
333 |
encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
334 |
{ |
335 |
if (ecb_expect_false (upgrade_utf8)) |
336 |
if (!utf8) |
337 |
{ |
338 |
encode_str_utf8 (enc, utf8, str, len); |
339 |
return; |
340 |
} |
341 |
|
342 |
encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
343 |
need (enc, len); |
344 |
memcpy (enc->cur, str, len); |
345 |
enc->cur += len; |
346 |
} |
347 |
|
348 |
ecb_inline void |
349 |
encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
350 |
{ |
351 |
if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
352 |
{ |
353 |
SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
354 |
|
355 |
if (SvOK (*svp)) |
356 |
{ |
357 |
// already registered, use stringref |
358 |
encode_tag (enc, CBOR_TAG_STRINGREF); |
359 |
encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
360 |
return; |
361 |
} |
362 |
else if (len >= minimum_string_length (enc->stringref_idx)) |
363 |
{ |
364 |
// register only |
365 |
sv_setuv (*svp, enc->stringref_idx); |
366 |
++enc->stringref_idx; |
367 |
} |
368 |
} |
369 |
|
370 |
encode_str (enc, upgrade_utf8, utf8, str, len); |
371 |
} |
372 |
|
373 |
ecb_inline void |
374 |
encode_float16 (enc_t *enc, NV nv) |
375 |
{ |
376 |
need (enc, 1+2); |
377 |
|
378 |
*enc->cur++ = MAJOR_MISC | MISC_FLOAT16; |
379 |
|
380 |
uint16_t fp = ecb_float_to_binary16 (nv); |
381 |
|
382 |
if (!ecb_big_endian ()) |
383 |
fp = ecb_bswap16 (fp); |
384 |
|
385 |
memcpy (enc->cur, &fp, 2); |
386 |
enc->cur += 2; |
387 |
} |
388 |
|
389 |
ecb_inline void |
390 |
encode_float32 (enc_t *enc, NV nv) |
391 |
{ |
392 |
need (enc, 1+4); |
393 |
|
394 |
*enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
395 |
|
396 |
uint32_t fp = ecb_float_to_binary32 (nv); |
397 |
|
398 |
if (!ecb_big_endian ()) |
399 |
fp = ecb_bswap32 (fp); |
400 |
|
401 |
memcpy (enc->cur, &fp, 4); |
402 |
enc->cur += 4; |
403 |
} |
404 |
|
405 |
ecb_inline void |
406 |
encode_float64 (enc_t *enc, NV nv) |
407 |
{ |
408 |
need (enc, 1+8); |
409 |
|
410 |
*enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
411 |
|
412 |
uint64_t fp = ecb_double_to_binary64 (nv); |
413 |
|
414 |
if (!ecb_big_endian ()) |
415 |
fp = ecb_bswap64 (fp); |
416 |
|
417 |
memcpy (enc->cur, &fp, 8); |
418 |
enc->cur += 8; |
419 |
} |
420 |
|
421 |
ecb_inline void |
422 |
encode_forced (enc_t *enc, UV type, SV *sv) |
423 |
{ |
424 |
switch (type) |
425 |
{ |
426 |
case AS_CBOR: |
427 |
{ |
428 |
STRLEN len; |
429 |
char *str = SvPVbyte (sv, len); |
430 |
|
431 |
need (enc, len); |
432 |
memcpy (enc->cur, str, len); |
433 |
enc->cur += len; |
434 |
} |
435 |
break; |
436 |
|
437 |
case AS_BYTES: |
438 |
{ |
439 |
STRLEN len; |
440 |
char *str = SvPVbyte (sv, len); |
441 |
encode_strref (enc, 0, 0, str, len); |
442 |
} |
443 |
break; |
444 |
|
445 |
case AS_TEXT: |
446 |
{ |
447 |
STRLEN len; |
448 |
char *str = SvPVutf8 (sv, len); |
449 |
encode_strref (enc, 1, 1, str, len); |
450 |
} |
451 |
break; |
452 |
|
453 |
case AS_FLOAT16: encode_float16 (enc, SvNV (sv)); break; |
454 |
case AS_FLOAT32: encode_float32 (enc, SvNV (sv)); break; |
455 |
case AS_FLOAT64: encode_float64 (enc, SvNV (sv)); break; |
456 |
|
457 |
default: |
458 |
croak ("encountered malformed CBOR::XS::Tagged object"); |
459 |
} |
460 |
} |
461 |
|
462 |
static void encode_sv (enc_t *enc, SV *sv); |
463 |
|
464 |
static void |
465 |
encode_av (enc_t *enc, AV *av) |
466 |
{ |
467 |
int i, len = av_len (av); |
468 |
|
469 |
if (enc->depth >= enc->cbor.max_depth) |
470 |
croak (ERR_NESTING_EXCEEDED); |
471 |
|
472 |
++enc->depth; |
473 |
|
474 |
encode_uint (enc, MAJOR_ARRAY, len + 1); |
475 |
|
476 |
if (ecb_expect_false (SvMAGICAL (av))) |
477 |
for (i = 0; i <= len; ++i) |
478 |
{ |
479 |
SV **svp = av_fetch (av, i, 0); |
480 |
encode_sv (enc, svp ? *svp : &PL_sv_undef); |
481 |
} |
482 |
else |
483 |
for (i = 0; i <= len; ++i) |
484 |
{ |
485 |
SV *sv = AvARRAY (av)[i]; |
486 |
encode_sv (enc, sv ? sv : &PL_sv_undef); |
487 |
} |
488 |
|
489 |
--enc->depth; |
490 |
} |
491 |
|
492 |
static void |
493 |
encode_hv (enc_t *enc, HV *hv) |
494 |
{ |
495 |
HE *he; |
496 |
|
497 |
if (enc->depth >= enc->cbor.max_depth) |
498 |
croak (ERR_NESTING_EXCEEDED); |
499 |
|
500 |
++enc->depth; |
501 |
|
502 |
int pairs = hv_iterinit (hv); |
503 |
int mg = SvMAGICAL (hv); |
504 |
|
505 |
if (ecb_expect_false (mg)) |
506 |
encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
507 |
else |
508 |
encode_uint (enc, MAJOR_MAP, pairs); |
509 |
|
510 |
while ((he = hv_iternext (hv))) |
511 |
{ |
512 |
if (HeKLEN (he) == HEf_SVKEY) |
513 |
encode_sv (enc, HeSVKEY (he)); |
514 |
else |
515 |
encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
516 |
|
517 |
encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
518 |
} |
519 |
|
520 |
if (ecb_expect_false (mg)) |
521 |
encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
522 |
|
523 |
--enc->depth; |
524 |
} |
525 |
|
526 |
// encode objects, arrays and special \0=false and \1=true values. |
527 |
static void |
528 |
encode_rv (enc_t *enc, SV *sv) |
529 |
{ |
530 |
SvGETMAGIC (sv); |
531 |
|
532 |
svtype svt = SvTYPE (sv); |
533 |
|
534 |
if (ecb_expect_false (SvOBJECT (sv))) |
535 |
{ |
536 |
HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
537 |
? types_boolean_stash |
538 |
: gv_stashpv ("Types::Serialiser::Boolean", 1); |
539 |
HV *error_stash = !CBOR_SLOW || types_error_stash |
540 |
? types_error_stash |
541 |
: gv_stashpv ("Types::Serialiser::Error", 1); |
542 |
HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
543 |
? cbor_tagged_stash |
544 |
: gv_stashpv ("CBOR::XS::Tagged" , 1); |
545 |
|
546 |
HV *stash = SvSTASH (sv); |
547 |
|
548 |
if (stash == boolean_stash) |
549 |
{ |
550 |
encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
551 |
return; |
552 |
} |
553 |
else if (stash == error_stash) |
554 |
{ |
555 |
encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
556 |
return; |
557 |
} |
558 |
else if (stash == tagged_stash) |
559 |
{ |
560 |
if (svt != SVt_PVAV) |
561 |
croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
562 |
|
563 |
switch (av_len ((AV *)sv)) |
564 |
{ |
565 |
case 2-1: |
566 |
// actually a tagged value |
567 |
encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
568 |
encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
569 |
break; |
570 |
|
571 |
case 3-1: |
572 |
// a forced type [value, type, undef] |
573 |
encode_forced (enc, SvUV (*av_fetch ((AV *)sv, 1, 1)), *av_fetch ((AV *)sv, 0, 1)); |
574 |
break; |
575 |
|
576 |
default: |
577 |
croak ("encountered malformed CBOR::XS::Tagged object"); |
578 |
} |
579 |
|
580 |
return; |
581 |
} |
582 |
} |
583 |
|
584 |
if (ecb_expect_false (SvREFCNT (sv) > 1) |
585 |
&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
586 |
{ |
587 |
if (ecb_expect_false (!enc->shareable)) |
588 |
enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
589 |
|
590 |
SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
591 |
|
592 |
if (SvOK (*svp)) |
593 |
{ |
594 |
encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
595 |
encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
596 |
return; |
597 |
} |
598 |
else |
599 |
{ |
600 |
sv_setuv (*svp, enc->shareable_idx); |
601 |
++enc->shareable_idx; |
602 |
encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
603 |
} |
604 |
} |
605 |
|
606 |
if (ecb_expect_false (SvOBJECT (sv))) |
607 |
{ |
608 |
HV *stash = SvSTASH (sv); |
609 |
GV *method; |
610 |
|
611 |
if (enc->cbor.flags & F_FORBID_OBJECTS) |
612 |
croak ("encountered object '%s', but forbid_objects is enabled", |
613 |
SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
614 |
else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
615 |
{ |
616 |
dSP; |
617 |
|
618 |
ENTER; SAVETMPS; |
619 |
PUSHMARK (SP); |
620 |
// we re-bless the reference to get overload and other niceties right |
621 |
XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
622 |
|
623 |
PUTBACK; |
624 |
// G_SCALAR ensures that return value is 1 |
625 |
call_sv ((SV *)GvCV (method), G_SCALAR); |
626 |
SPAGAIN; |
627 |
|
628 |
// catch this surprisingly common error |
629 |
if (SvROK (TOPs) && SvRV (TOPs) == sv) |
630 |
croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
631 |
|
632 |
encode_sv (enc, POPs); |
633 |
|
634 |
PUTBACK; |
635 |
|
636 |
FREETMPS; LEAVE; |
637 |
} |
638 |
else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
639 |
{ |
640 |
dSP; |
641 |
|
642 |
ENTER; SAVETMPS; |
643 |
PUSHMARK (SP); |
644 |
EXTEND (SP, 2); |
645 |
// we re-bless the reference to get overload and other niceties right |
646 |
PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
647 |
PUSHs (sv_cbor); |
648 |
|
649 |
PUTBACK; |
650 |
int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
651 |
SPAGAIN; |
652 |
|
653 |
// catch this surprisingly common error |
654 |
if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
655 |
croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
656 |
|
657 |
encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
658 |
encode_uint (enc, MAJOR_ARRAY, count + 1); |
659 |
encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
660 |
|
661 |
{ |
662 |
int i; |
663 |
|
664 |
for (i = 0; i < count; ++i) |
665 |
encode_sv (enc, SP[i + 1 - count]); |
666 |
|
667 |
SP -= count; |
668 |
} |
669 |
|
670 |
PUTBACK; |
671 |
|
672 |
FREETMPS; LEAVE; |
673 |
} |
674 |
else |
675 |
croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
676 |
SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
677 |
} |
678 |
else if (svt == SVt_PVHV) |
679 |
encode_hv (enc, (HV *)sv); |
680 |
else if (svt == SVt_PVAV) |
681 |
encode_av (enc, (AV *)sv); |
682 |
else |
683 |
{ |
684 |
encode_tag (enc, CBOR_TAG_INDIRECTION); |
685 |
encode_sv (enc, sv); |
686 |
} |
687 |
} |
688 |
|
689 |
static void |
690 |
encode_nv (enc_t *enc, SV *sv) |
691 |
{ |
692 |
double nv = SvNVX (sv); |
693 |
|
694 |
need (enc, 9); |
695 |
|
696 |
if (ecb_expect_false (nv == (NV)(U32)nv)) |
697 |
encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
698 |
//TODO: maybe I32? |
699 |
else if (ecb_expect_false (nv == (float)nv)) |
700 |
encode_float32 (enc, nv); |
701 |
else |
702 |
encode_float64 (enc, nv); |
703 |
} |
704 |
|
705 |
static void |
706 |
encode_sv (enc_t *enc, SV *sv) |
707 |
{ |
708 |
SvGETMAGIC (sv); |
709 |
|
710 |
if (SvPOKp (sv)) |
711 |
{ |
712 |
STRLEN len; |
713 |
char *str = SvPV (sv, len); |
714 |
encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
715 |
} |
716 |
else if (SvNOKp (sv)) |
717 |
encode_nv (enc, sv); |
718 |
else if (SvIOKp (sv)) |
719 |
encode_int (e,v sv); |
720 |
else if (SvROK (sv)) |
721 |
encode_rv (enc, SvRV (sv)); |
722 |
else if (!SvOK (sv)) |
723 |
encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
724 |
else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
725 |
encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
726 |
else |
727 |
croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
728 |
SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
729 |
} |
730 |
|
731 |
static SV * |
732 |
encode_cbor (SV *scalar, CBOR *cbor) |
733 |
{ |
734 |
enc_t enc = { 0 }; |
735 |
|
736 |
enc.cbor = *cbor; |
737 |
enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
738 |
enc.cur = SvPVX (enc.sv); |
739 |
enc.end = SvEND (enc.sv); |
740 |
|
741 |
SvPOK_only (enc.sv); |
742 |
|
743 |
if (cbor->flags & F_PACK_STRINGS) |
744 |
{ |
745 |
encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
746 |
enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
747 |
enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
748 |
} |
749 |
|
750 |
encode_sv (&enc, scalar); |
751 |
|
752 |
SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
753 |
*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
754 |
|
755 |
if (enc.cbor.flags & F_SHRINK) |
756 |
shrink (enc.sv); |
757 |
|
758 |
return enc.sv; |
759 |
} |
760 |
|
761 |
///////////////////////////////////////////////////////////////////////////// |
762 |
// decoder |
763 |
|
764 |
// structure used for decoding CBOR |
765 |
typedef struct |
766 |
{ |
767 |
U8 *cur; // current parser pointer |
768 |
U8 *end; // end of input string |
769 |
const char *err; // parse error, if != 0 |
770 |
CBOR cbor; |
771 |
U32 depth; // recursion depth |
772 |
U32 maxdepth; // recursion depth limit |
773 |
AV *shareable; |
774 |
AV *stringref; |
775 |
SV *decode_tagged; |
776 |
SV *err_sv; // optional sv for error, needs to be freed |
777 |
} dec_t; |
778 |
|
779 |
// set dec->err to ERRSV |
780 |
ecb_cold static void |
781 |
err_errsv (dec_t *dec) |
782 |
{ |
783 |
if (!dec->err) |
784 |
{ |
785 |
dec->err_sv = newSVsv (ERRSV); |
786 |
|
787 |
// chop off the trailing \n |
788 |
SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1); |
789 |
*SvEND (dec->err_sv) = 0; |
790 |
|
791 |
dec->err = SvPVutf8_nolen (dec->err_sv); |
792 |
} |
793 |
} |
794 |
|
795 |
// the following functions are used to reduce code size and help the compiler to optimise |
796 |
ecb_cold static void |
797 |
err_set (dec_t *dec, const char *reason) |
798 |
{ |
799 |
if (!dec->err) |
800 |
dec->err = reason; |
801 |
} |
802 |
|
803 |
ecb_cold static void |
804 |
err_unexpected_end (dec_t *dec) |
805 |
{ |
806 |
err_set (dec, "unexpected end of CBOR data"); |
807 |
} |
808 |
|
809 |
#define ERR_DO(do) SB do; goto fail; SE |
810 |
#define ERR(reason) ERR_DO (err_set (dec, reason)) |
811 |
#define ERR_ERRSV ERR_DO (err_errsv (dec)) |
812 |
|
813 |
#define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec)) |
814 |
|
815 |
#define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
816 |
#define DEC_DEC_DEPTH --dec->depth |
817 |
|
818 |
static UV |
819 |
decode_uint (dec_t *dec) |
820 |
{ |
821 |
U8 m = *dec->cur & MINOR_MASK; |
822 |
++dec->cur; |
823 |
|
824 |
if (ecb_expect_true (m < LENGTH_EXT1)) |
825 |
return m; |
826 |
else if (ecb_expect_true (m == LENGTH_EXT1)) |
827 |
{ |
828 |
WANT (1); |
829 |
dec->cur += 1; |
830 |
return dec->cur[-1]; |
831 |
} |
832 |
else if (ecb_expect_true (m == LENGTH_EXT2)) |
833 |
{ |
834 |
WANT (2); |
835 |
dec->cur += 2; |
836 |
return (((UV)dec->cur[-2]) << 8) |
837 |
| ((UV)dec->cur[-1]); |
838 |
} |
839 |
else if (ecb_expect_true (m == LENGTH_EXT4)) |
840 |
{ |
841 |
WANT (4); |
842 |
dec->cur += 4; |
843 |
return (((UV)dec->cur[-4]) << 24) |
844 |
| (((UV)dec->cur[-3]) << 16) |
845 |
| (((UV)dec->cur[-2]) << 8) |
846 |
| ((UV)dec->cur[-1]); |
847 |
} |
848 |
else if (ecb_expect_true (m == LENGTH_EXT8)) |
849 |
{ |
850 |
WANT (8); |
851 |
dec->cur += 8; |
852 |
|
853 |
return |
854 |
#if UVSIZE < 8 |
855 |
0 |
856 |
#else |
857 |
(((UV)dec->cur[-8]) << 56) |
858 |
| (((UV)dec->cur[-7]) << 48) |
859 |
| (((UV)dec->cur[-6]) << 40) |
860 |
| (((UV)dec->cur[-5]) << 32) |
861 |
#endif |
862 |
| (((UV)dec->cur[-4]) << 24) |
863 |
| (((UV)dec->cur[-3]) << 16) |
864 |
| (((UV)dec->cur[-2]) << 8) |
865 |
| ((UV)dec->cur[-1]); |
866 |
} |
867 |
else |
868 |
ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
869 |
|
870 |
fail: |
871 |
return 0; |
872 |
} |
873 |
|
874 |
static SV *decode_sv (dec_t *dec); |
875 |
|
876 |
static SV * |
877 |
decode_av (dec_t *dec) |
878 |
{ |
879 |
AV *av = newAV (); |
880 |
|
881 |
DEC_INC_DEPTH; |
882 |
|
883 |
if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
884 |
{ |
885 |
++dec->cur; |
886 |
|
887 |
for (;;) |
888 |
{ |
889 |
WANT (1); |
890 |
|
891 |
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
892 |
{ |
893 |
++dec->cur; |
894 |
break; |
895 |
} |
896 |
|
897 |
av_push (av, decode_sv (dec)); |
898 |
} |
899 |
} |
900 |
else |
901 |
{ |
902 |
UV i, len = decode_uint (dec); |
903 |
|
904 |
WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
905 |
av_fill (av, len - 1); |
906 |
|
907 |
for (i = 0; i < len; ++i) |
908 |
AvARRAY (av)[i] = decode_sv (dec); |
909 |
} |
910 |
|
911 |
DEC_DEC_DEPTH; |
912 |
return newRV_noinc ((SV *)av); |
913 |
|
914 |
fail: |
915 |
SvREFCNT_dec_NN (av); |
916 |
DEC_DEC_DEPTH; |
917 |
return &PL_sv_undef; |
918 |
} |
919 |
|
920 |
static void |
921 |
decode_he (dec_t *dec, HV *hv) |
922 |
{ |
923 |
// for speed reasons, we specialcase single-string |
924 |
// byte or utf-8 strings as keys, but only when !stringref |
925 |
|
926 |
if (ecb_expect_true (!dec->stringref)) |
927 |
if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
928 |
{ |
929 |
STRLEN len = decode_uint (dec); |
930 |
char *key = (char *)dec->cur; |
931 |
|
932 |
WANT (len); |
933 |
dec->cur += len; |
934 |
|
935 |
hv_store (hv, key, len, decode_sv (dec), 0); |
936 |
|
937 |
return; |
938 |
} |
939 |
else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
940 |
{ |
941 |
STRLEN len = decode_uint (dec); |
942 |
char *key = (char *)dec->cur; |
943 |
|
944 |
WANT (len); |
945 |
dec->cur += len; |
946 |
|
947 |
if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
948 |
if (!is_utf8_string (key, len)) |
949 |
ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
950 |
|
951 |
hv_store (hv, key, -len, decode_sv (dec), 0); |
952 |
|
953 |
return; |
954 |
} |
955 |
|
956 |
SV *k = decode_sv (dec); |
957 |
SV *v = decode_sv (dec); |
958 |
|
959 |
// we leak memory if uncaught exceptions are thrown by random magical |
960 |
// methods, and this is hopefully the only place where it can happen, |
961 |
// so if there is a chance of an exception, take the very slow path. |
962 |
// since catching exceptions is "undocumented/internal/forbidden" by |
963 |
// the new p5p powers, we need to call out to a perl function :/ |
964 |
if (ecb_expect_false (SvAMAGIC (k))) |
965 |
{ |
966 |
dSP; |
967 |
|
968 |
ENTER; SAVETMPS; |
969 |
PUSHMARK (SP); |
970 |
EXTEND (SP, 3); |
971 |
PUSHs (sv_2mortal (newRV_inc ((SV *)hv))); |
972 |
PUSHs (sv_2mortal (k)); |
973 |
PUSHs (sv_2mortal (v)); |
974 |
|
975 |
PUTBACK; |
976 |
call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL); |
977 |
SPAGAIN; |
978 |
|
979 |
FREETMPS; LEAVE; |
980 |
|
981 |
if (SvTRUE (ERRSV)) |
982 |
ERR_ERRSV; |
983 |
|
984 |
return; |
985 |
} |
986 |
|
987 |
hv_store_ent (hv, k, v, 0); |
988 |
SvREFCNT_dec_NN (k); |
989 |
|
990 |
fail: |
991 |
; |
992 |
} |
993 |
|
994 |
static SV * |
995 |
decode_hv (dec_t *dec) |
996 |
{ |
997 |
HV *hv = newHV (); |
998 |
|
999 |
DEC_INC_DEPTH; |
1000 |
|
1001 |
if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
1002 |
{ |
1003 |
++dec->cur; |
1004 |
|
1005 |
for (;;) |
1006 |
{ |
1007 |
WANT (1); |
1008 |
|
1009 |
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
1010 |
{ |
1011 |
++dec->cur; |
1012 |
break; |
1013 |
} |
1014 |
|
1015 |
decode_he (dec, hv); |
1016 |
} |
1017 |
} |
1018 |
else |
1019 |
{ |
1020 |
UV pairs = decode_uint (dec); |
1021 |
|
1022 |
WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes |
1023 |
|
1024 |
while (pairs--) |
1025 |
decode_he (dec, hv); |
1026 |
} |
1027 |
|
1028 |
DEC_DEC_DEPTH; |
1029 |
return newRV_noinc ((SV *)hv); |
1030 |
|
1031 |
fail: |
1032 |
SvREFCNT_dec_NN (hv); |
1033 |
DEC_DEC_DEPTH; |
1034 |
return &PL_sv_undef; |
1035 |
} |
1036 |
|
1037 |
static SV * |
1038 |
decode_str (dec_t *dec, int utf8) |
1039 |
{ |
1040 |
SV *sv = 0; |
1041 |
|
1042 |
if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF)) |
1043 |
{ |
1044 |
// indefinite length strings |
1045 |
++dec->cur; |
1046 |
|
1047 |
U8 major = *dec->cur & MAJOR_MISC; |
1048 |
|
1049 |
sv = newSVpvn ("", 0); |
1050 |
|
1051 |
for (;;) |
1052 |
{ |
1053 |
WANT (1); |
1054 |
|
1055 |
if ((*dec->cur - major) > LENGTH_EXT8) |
1056 |
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
1057 |
{ |
1058 |
++dec->cur; |
1059 |
break; |
1060 |
} |
1061 |
else |
1062 |
ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
1063 |
|
1064 |
STRLEN len = decode_uint (dec); |
1065 |
|
1066 |
WANT (len); |
1067 |
sv_catpvn (sv, dec->cur, len); |
1068 |
dec->cur += len; |
1069 |
} |
1070 |
} |
1071 |
else |
1072 |
{ |
1073 |
STRLEN len = decode_uint (dec); |
1074 |
|
1075 |
WANT (len); |
1076 |
sv = newSVpvn (dec->cur, len); |
1077 |
dec->cur += len; |
1078 |
|
1079 |
if (ecb_expect_false (dec->stringref) |
1080 |
&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
1081 |
av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
1082 |
} |
1083 |
|
1084 |
if (utf8) |
1085 |
{ |
1086 |
if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
1087 |
if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
1088 |
ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
1089 |
|
1090 |
SvUTF8_on (sv); |
1091 |
} |
1092 |
|
1093 |
return sv; |
1094 |
|
1095 |
fail: |
1096 |
SvREFCNT_dec (sv); |
1097 |
return &PL_sv_undef; |
1098 |
} |
1099 |
|
1100 |
static SV * |
1101 |
decode_tagged (dec_t *dec) |
1102 |
{ |
1103 |
SV *sv = 0; |
1104 |
UV tag = decode_uint (dec); |
1105 |
|
1106 |
WANT (1); |
1107 |
|
1108 |
switch (tag) |
1109 |
{ |
1110 |
case CBOR_TAG_MAGIC: |
1111 |
sv = decode_sv (dec); |
1112 |
break; |
1113 |
|
1114 |
case CBOR_TAG_INDIRECTION: |
1115 |
sv = newRV_noinc (decode_sv (dec)); |
1116 |
break; |
1117 |
|
1118 |
case CBOR_TAG_STRINGREF_NAMESPACE: |
1119 |
{ |
1120 |
// do not use SAVETMPS/FREETMPS, as these will |
1121 |
// erase mortalised caches, e.g. "shareable" |
1122 |
ENTER; |
1123 |
|
1124 |
SAVESPTR (dec->stringref); |
1125 |
dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
1126 |
|
1127 |
sv = decode_sv (dec); |
1128 |
|
1129 |
LEAVE; |
1130 |
} |
1131 |
break; |
1132 |
|
1133 |
case CBOR_TAG_STRINGREF: |
1134 |
{ |
1135 |
if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
1136 |
ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
1137 |
|
1138 |
UV idx = decode_uint (dec); |
1139 |
|
1140 |
if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref))) |
1141 |
ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
1142 |
|
1143 |
sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
1144 |
} |
1145 |
break; |
1146 |
|
1147 |
case CBOR_TAG_VALUE_SHAREABLE: |
1148 |
{ |
1149 |
if (ecb_expect_false (!dec->shareable)) |
1150 |
dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
1151 |
|
1152 |
if (dec->cbor.flags & F_ALLOW_CYCLES) |
1153 |
{ |
1154 |
sv = newSV (0); |
1155 |
av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
1156 |
|
1157 |
SV *osv = decode_sv (dec); |
1158 |
sv_setsv (sv, osv); |
1159 |
SvREFCNT_dec_NN (osv); |
1160 |
} |
1161 |
else |
1162 |
{ |
1163 |
av_push (dec->shareable, &PL_sv_undef); |
1164 |
int idx = AvFILLp (dec->shareable); |
1165 |
sv = decode_sv (dec); |
1166 |
av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
1167 |
} |
1168 |
} |
1169 |
break; |
1170 |
|
1171 |
case CBOR_TAG_VALUE_SHAREDREF: |
1172 |
{ |
1173 |
if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
1174 |
ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
1175 |
|
1176 |
UV idx = decode_uint (dec); |
1177 |
|
1178 |
if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable))) |
1179 |
ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
1180 |
|
1181 |
sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
1182 |
|
1183 |
if (sv == &PL_sv_undef) |
1184 |
ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
1185 |
} |
1186 |
break; |
1187 |
|
1188 |
case CBOR_TAG_PERL_OBJECT: |
1189 |
{ |
1190 |
if (dec->cbor.flags & F_FORBID_OBJECTS) |
1191 |
goto filter; |
1192 |
|
1193 |
sv = decode_sv (dec); |
1194 |
|
1195 |
if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
1196 |
ERR ("corrupted CBOR data (non-array perl object)"); |
1197 |
|
1198 |
AV *av = (AV *)SvRV (sv); |
1199 |
int len = av_len (av) + 1; |
1200 |
HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
1201 |
|
1202 |
if (!stash) |
1203 |
ERR ("cannot decode perl-object (package does not exist)"); |
1204 |
|
1205 |
GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
1206 |
|
1207 |
if (!method) |
1208 |
ERR ("cannot decode perl-object (package does not have a THAW method)"); |
1209 |
|
1210 |
dSP; |
1211 |
|
1212 |
ENTER; SAVETMPS; |
1213 |
PUSHMARK (SP); |
1214 |
EXTEND (SP, len + 1); |
1215 |
// we re-bless the reference to get overload and other niceties right |
1216 |
PUSHs (*av_fetch (av, 0, 1)); |
1217 |
PUSHs (sv_cbor); |
1218 |
|
1219 |
int i; |
1220 |
|
1221 |
for (i = 1; i < len; ++i) |
1222 |
PUSHs (*av_fetch (av, i, 1)); |
1223 |
|
1224 |
PUTBACK; |
1225 |
call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
1226 |
SPAGAIN; |
1227 |
|
1228 |
if (SvTRUE (ERRSV)) |
1229 |
{ |
1230 |
FREETMPS; LEAVE; |
1231 |
ERR_ERRSV; |
1232 |
} |
1233 |
|
1234 |
SvREFCNT_dec_NN (sv); |
1235 |
sv = SvREFCNT_inc (POPs); |
1236 |
|
1237 |
PUTBACK; |
1238 |
|
1239 |
FREETMPS; LEAVE; |
1240 |
} |
1241 |
break; |
1242 |
|
1243 |
default: |
1244 |
filter: |
1245 |
{ |
1246 |
SV *tag_sv = newSVuv (tag); |
1247 |
|
1248 |
sv = decode_sv (dec); |
1249 |
|
1250 |
dSP; |
1251 |
ENTER; SAVETMPS; |
1252 |
PUSHMARK (SP); |
1253 |
EXTEND (SP, 2); |
1254 |
PUSHs (tag_sv); |
1255 |
PUSHs (sv); |
1256 |
|
1257 |
PUTBACK; |
1258 |
int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
1259 |
SPAGAIN; |
1260 |
|
1261 |
if (SvTRUE (ERRSV)) |
1262 |
{ |
1263 |
SvREFCNT_dec_NN (tag_sv); |
1264 |
FREETMPS; LEAVE; |
1265 |
ERR_ERRSV; |
1266 |
} |
1267 |
|
1268 |
if (count) |
1269 |
{ |
1270 |
SvREFCNT_dec_NN (tag_sv); |
1271 |
SvREFCNT_dec_NN (sv); |
1272 |
sv = SvREFCNT_inc_NN (TOPs); |
1273 |
SP -= count; |
1274 |
} |
1275 |
else |
1276 |
{ |
1277 |
AV *av = newAV (); |
1278 |
av_push (av, tag_sv); |
1279 |
av_push (av, sv); |
1280 |
|
1281 |
HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1282 |
? cbor_tagged_stash |
1283 |
: gv_stashpv ("CBOR::XS::Tagged" , 1); |
1284 |
sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
1285 |
} |
1286 |
|
1287 |
PUTBACK; |
1288 |
|
1289 |
FREETMPS; LEAVE; |
1290 |
} |
1291 |
break; |
1292 |
} |
1293 |
|
1294 |
return sv; |
1295 |
|
1296 |
fail: |
1297 |
SvREFCNT_dec (sv); |
1298 |
return &PL_sv_undef; |
1299 |
} |
1300 |
|
1301 |
static SV * |
1302 |
decode_sv (dec_t *dec) |
1303 |
{ |
1304 |
WANT (1); |
1305 |
|
1306 |
switch (*dec->cur >> MAJOR_SHIFT) |
1307 |
{ |
1308 |
case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
1309 |
case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
1310 |
case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
1311 |
case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
1312 |
case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
1313 |
case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
1314 |
case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
1315 |
|
1316 |
case MAJOR_MISC >> MAJOR_SHIFT: |
1317 |
switch (*dec->cur++ & MINOR_MASK) |
1318 |
{ |
1319 |
case SIMPLE_FALSE: |
1320 |
#if CBOR_SLOW |
1321 |
types_false = get_bool ("Types::Serialiser::false"); |
1322 |
#endif |
1323 |
return newSVsv (types_false); |
1324 |
case SIMPLE_TRUE: |
1325 |
#if CBOR_SLOW |
1326 |
types_true = get_bool ("Types::Serialiser::true"); |
1327 |
#endif |
1328 |
return newSVsv (types_true); |
1329 |
case SIMPLE_NULL: |
1330 |
return newSVsv (&PL_sv_undef); |
1331 |
case SIMPLE_UNDEF: |
1332 |
#if CBOR_SLOW |
1333 |
types_error = get_bool ("Types::Serialiser::error"); |
1334 |
#endif |
1335 |
return newSVsv (types_error); |
1336 |
|
1337 |
case MISC_FLOAT16: |
1338 |
{ |
1339 |
WANT (2); |
1340 |
|
1341 |
uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1342 |
dec->cur += 2; |
1343 |
|
1344 |
return newSVnv (ecb_binary16_to_float (fp)); |
1345 |
} |
1346 |
|
1347 |
case MISC_FLOAT32: |
1348 |
{ |
1349 |
uint32_t fp; |
1350 |
WANT (4); |
1351 |
memcpy (&fp, dec->cur, 4); |
1352 |
dec->cur += 4; |
1353 |
|
1354 |
if (!ecb_big_endian ()) |
1355 |
fp = ecb_bswap32 (fp); |
1356 |
|
1357 |
return newSVnv (ecb_binary32_to_float (fp)); |
1358 |
} |
1359 |
|
1360 |
case MISC_FLOAT64: |
1361 |
{ |
1362 |
uint64_t fp; |
1363 |
WANT (8); |
1364 |
memcpy (&fp, dec->cur, 8); |
1365 |
dec->cur += 8; |
1366 |
|
1367 |
if (!ecb_big_endian ()) |
1368 |
fp = ecb_bswap64 (fp); |
1369 |
|
1370 |
return newSVnv (ecb_binary64_to_double (fp)); |
1371 |
} |
1372 |
|
1373 |
// 0..19 unassigned simple |
1374 |
// 24 reserved + unassigned simple (reserved values are not encodable) |
1375 |
// 28-30 unassigned misc |
1376 |
// 31 break code |
1377 |
default: |
1378 |
ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
1379 |
} |
1380 |
|
1381 |
break; |
1382 |
} |
1383 |
|
1384 |
fail: |
1385 |
return &PL_sv_undef; |
1386 |
} |
1387 |
|
1388 |
static SV * |
1389 |
decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1390 |
{ |
1391 |
dec_t dec = { 0 }; |
1392 |
SV *sv; |
1393 |
STRLEN len; |
1394 |
char *data = SvPVbyte (string, len); |
1395 |
|
1396 |
if (len > cbor->max_size && cbor->max_size) |
1397 |
croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1398 |
(unsigned long)len, (unsigned long)cbor->max_size); |
1399 |
|
1400 |
dec.cbor = *cbor; |
1401 |
dec.cur = (U8 *)data; |
1402 |
dec.end = (U8 *)data + len; |
1403 |
|
1404 |
sv = decode_sv (&dec); |
1405 |
|
1406 |
if (offset_return) |
1407 |
*offset_return = dec.cur; |
1408 |
|
1409 |
if (!(offset_return || !sv)) |
1410 |
if (dec.cur != dec.end && !dec.err) |
1411 |
dec.err = "garbage after CBOR object"; |
1412 |
|
1413 |
if (dec.err) |
1414 |
{ |
1415 |
if (dec.shareable) |
1416 |
{ |
1417 |
// need to break cyclic links, which would all be in shareable |
1418 |
int i; |
1419 |
SV **svp; |
1420 |
|
1421 |
for (i = av_len (dec.shareable) + 1; i--; ) |
1422 |
if ((svp = av_fetch (dec.shareable, i, 0))) |
1423 |
sv_setsv (*svp, &PL_sv_undef); |
1424 |
} |
1425 |
|
1426 |
SvREFCNT_dec_NN (sv); |
1427 |
|
1428 |
if (dec.err_sv) |
1429 |
sv_2mortal (dec.err_sv); |
1430 |
|
1431 |
croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1432 |
} |
1433 |
|
1434 |
sv = sv_2mortal (sv); |
1435 |
|
1436 |
return sv; |
1437 |
} |
1438 |
|
1439 |
///////////////////////////////////////////////////////////////////////////// |
1440 |
// incremental parser |
1441 |
|
1442 |
#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
1443 |
|
1444 |
// returns 0 for notyet, 1 for success or error |
1445 |
static int |
1446 |
incr_parse (CBOR *self, SV *cborstr) |
1447 |
{ |
1448 |
STRLEN cur; |
1449 |
SvPV (cborstr, cur); |
1450 |
|
1451 |
while (ecb_expect_true (self->incr_need <= cur)) |
1452 |
{ |
1453 |
// table of integer count bytes |
1454 |
static I8 incr_len[MINOR_MASK + 1] = { |
1455 |
0, 0, 0, 0, 0, 0, 0, 0, |
1456 |
0, 0, 0, 0, 0, 0, 0, 0, |
1457 |
0, 0, 0, 0, 0, 0, 0, 0, |
1458 |
1, 2, 4, 8,-1,-1,-1,-2 |
1459 |
}; |
1460 |
|
1461 |
const U8 *p = SvPVX (cborstr) + self->incr_pos; |
1462 |
U8 m = *p & MINOR_MASK; |
1463 |
IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
1464 |
I8 ilen = incr_len[m]; |
1465 |
|
1466 |
self->incr_need = self->incr_pos + 1; |
1467 |
|
1468 |
if (ecb_expect_false (ilen < 0)) |
1469 |
{ |
1470 |
if (m != MINOR_INDEF) |
1471 |
return 1; // error |
1472 |
|
1473 |
if (*p == (MAJOR_MISC | MINOR_INDEF)) |
1474 |
{ |
1475 |
if (count >= 0) |
1476 |
return 1; // error |
1477 |
|
1478 |
count = 1; |
1479 |
} |
1480 |
else |
1481 |
{ |
1482 |
av_push (self->incr_count, newSViv (-1)); //TODO: nest |
1483 |
count = -1; |
1484 |
} |
1485 |
} |
1486 |
else |
1487 |
{ |
1488 |
self->incr_need += ilen; |
1489 |
if (ecb_expect_false (self->incr_need > cur)) |
1490 |
return 0; |
1491 |
|
1492 |
int major = *p >> MAJOR_SHIFT; |
1493 |
|
1494 |
switch (major) |
1495 |
{ |
1496 |
case MAJOR_TAG >> MAJOR_SHIFT: |
1497 |
++count; // tags merely prefix another value |
1498 |
break; |
1499 |
|
1500 |
case MAJOR_BYTES >> MAJOR_SHIFT: |
1501 |
case MAJOR_TEXT >> MAJOR_SHIFT: |
1502 |
case MAJOR_ARRAY >> MAJOR_SHIFT: |
1503 |
case MAJOR_MAP >> MAJOR_SHIFT: |
1504 |
{ |
1505 |
UV len; |
1506 |
|
1507 |
if (ecb_expect_false (ilen)) |
1508 |
{ |
1509 |
len = 0; |
1510 |
|
1511 |
do { |
1512 |
len = (len << 8) | *++p; |
1513 |
} while (--ilen); |
1514 |
} |
1515 |
else |
1516 |
len = m; |
1517 |
|
1518 |
switch (major) |
1519 |
{ |
1520 |
case MAJOR_BYTES >> MAJOR_SHIFT: |
1521 |
case MAJOR_TEXT >> MAJOR_SHIFT: |
1522 |
self->incr_need += len; |
1523 |
if (ecb_expect_false (self->incr_need > cur)) |
1524 |
return 0; |
1525 |
|
1526 |
break; |
1527 |
|
1528 |
case MAJOR_MAP >> MAJOR_SHIFT: |
1529 |
len <<= 1; |
1530 |
case MAJOR_ARRAY >> MAJOR_SHIFT: |
1531 |
if (len) |
1532 |
{ |
1533 |
av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
1534 |
count = len + 1; |
1535 |
} |
1536 |
break; |
1537 |
} |
1538 |
} |
1539 |
} |
1540 |
} |
1541 |
|
1542 |
self->incr_pos = self->incr_need; |
1543 |
|
1544 |
if (count > 0) |
1545 |
{ |
1546 |
while (!--count) |
1547 |
{ |
1548 |
if (!AvFILLp (self->incr_count)) |
1549 |
return 1; // done |
1550 |
|
1551 |
SvREFCNT_dec_NN (av_pop (self->incr_count)); |
1552 |
count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
1553 |
} |
1554 |
|
1555 |
SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
1556 |
} |
1557 |
} |
1558 |
|
1559 |
return 0; |
1560 |
} |
1561 |
|
1562 |
|
1563 |
///////////////////////////////////////////////////////////////////////////// |
1564 |
// XS interface functions |
1565 |
|
1566 |
MODULE = CBOR::XS PACKAGE = CBOR::XS |
1567 |
|
1568 |
BOOT: |
1569 |
{ |
1570 |
cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1571 |
cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1572 |
|
1573 |
types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
1574 |
types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
1575 |
|
1576 |
types_true = get_bool ("Types::Serialiser::true" ); |
1577 |
types_false = get_bool ("Types::Serialiser::false"); |
1578 |
types_error = get_bool ("Types::Serialiser::error"); |
1579 |
|
1580 |
default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1581 |
|
1582 |
sv_cbor = newSVpv ("CBOR", 0); |
1583 |
SvREADONLY_on (sv_cbor); |
1584 |
|
1585 |
assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1)); |
1586 |
} |
1587 |
|
1588 |
PROTOTYPES: DISABLE |
1589 |
|
1590 |
void CLONE (...) |
1591 |
CODE: |
1592 |
cbor_stash = 0; |
1593 |
cbor_tagged_stash = 0; |
1594 |
types_error_stash = 0; |
1595 |
types_boolean_stash = 0; |
1596 |
|
1597 |
void new (char *klass) |
1598 |
PPCODE: |
1599 |
{ |
1600 |
SV *pv = NEWSV (0, sizeof (CBOR)); |
1601 |
SvPOK_only (pv); |
1602 |
cbor_init ((CBOR *)SvPVX (pv)); |
1603 |
XPUSHs (sv_2mortal (sv_bless ( |
1604 |
newRV_noinc (pv), |
1605 |
strEQ (klass, "CBOR::XS") ? CBOR_STASH : gv_stashpv (klass, 1) |
1606 |
))); |
1607 |
} |
1608 |
|
1609 |
void shrink (CBOR *self, int enable = 1) |
1610 |
ALIAS: |
1611 |
shrink = F_SHRINK |
1612 |
allow_unknown = F_ALLOW_UNKNOWN |
1613 |
allow_sharing = F_ALLOW_SHARING |
1614 |
allow_cycles = F_ALLOW_CYCLES |
1615 |
forbid_objects = F_FORBID_OBJECTS |
1616 |
pack_strings = F_PACK_STRINGS |
1617 |
text_keys = F_TEXT_KEYS |
1618 |
text_strings = F_TEXT_STRINGS |
1619 |
validate_utf8 = F_VALIDATE_UTF8 |
1620 |
PPCODE: |
1621 |
{ |
1622 |
if (enable) |
1623 |
self->flags |= ix; |
1624 |
else |
1625 |
self->flags &= ~ix; |
1626 |
|
1627 |
XPUSHs (ST (0)); |
1628 |
} |
1629 |
|
1630 |
void get_shrink (CBOR *self) |
1631 |
ALIAS: |
1632 |
get_shrink = F_SHRINK |
1633 |
get_allow_unknown = F_ALLOW_UNKNOWN |
1634 |
get_allow_sharing = F_ALLOW_SHARING |
1635 |
get_allow_cycles = F_ALLOW_CYCLES |
1636 |
get_forbid_objects = F_FORBID_OBJECTS |
1637 |
get_pack_strings = F_PACK_STRINGS |
1638 |
get_text_keys = F_TEXT_KEYS |
1639 |
get_text_strings = F_TEXT_STRINGS |
1640 |
get_validate_utf8 = F_VALIDATE_UTF8 |
1641 |
PPCODE: |
1642 |
XPUSHs (boolSV (self->flags & ix)); |
1643 |
|
1644 |
void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1645 |
PPCODE: |
1646 |
self->max_depth = max_depth; |
1647 |
XPUSHs (ST (0)); |
1648 |
|
1649 |
U32 get_max_depth (CBOR *self) |
1650 |
CODE: |
1651 |
RETVAL = self->max_depth; |
1652 |
OUTPUT: |
1653 |
RETVAL |
1654 |
|
1655 |
void max_size (CBOR *self, U32 max_size = 0) |
1656 |
PPCODE: |
1657 |
self->max_size = max_size; |
1658 |
XPUSHs (ST (0)); |
1659 |
|
1660 |
int get_max_size (CBOR *self) |
1661 |
CODE: |
1662 |
RETVAL = self->max_size; |
1663 |
OUTPUT: |
1664 |
RETVAL |
1665 |
|
1666 |
void filter (CBOR *self, SV *filter = 0) |
1667 |
PPCODE: |
1668 |
SvREFCNT_dec (self->filter); |
1669 |
self->filter = filter ? newSVsv (filter) : filter; |
1670 |
XPUSHs (ST (0)); |
1671 |
|
1672 |
SV *get_filter (CBOR *self) |
1673 |
CODE: |
1674 |
RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1675 |
OUTPUT: |
1676 |
RETVAL |
1677 |
|
1678 |
void encode (CBOR *self, SV *scalar) |
1679 |
PPCODE: |
1680 |
PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1681 |
XPUSHs (scalar); |
1682 |
|
1683 |
void decode (CBOR *self, SV *cborstr) |
1684 |
PPCODE: |
1685 |
PUTBACK; cborstr = decode_cbor (cborstr, self, 0); SPAGAIN; |
1686 |
XPUSHs (cborstr); |
1687 |
|
1688 |
void decode_prefix (CBOR *self, SV *cborstr) |
1689 |
PPCODE: |
1690 |
{ |
1691 |
SV *sv; |
1692 |
char *offset; |
1693 |
PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
1694 |
EXTEND (SP, 2); |
1695 |
PUSHs (sv); |
1696 |
PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1697 |
} |
1698 |
|
1699 |
void incr_parse (CBOR *self, SV *cborstr) |
1700 |
ALIAS: |
1701 |
incr_parse_multiple = 1 |
1702 |
PPCODE: |
1703 |
{ |
1704 |
if (SvUTF8 (cborstr)) |
1705 |
sv_utf8_downgrade (cborstr, 0); |
1706 |
|
1707 |
if (!self->incr_count) |
1708 |
{ |
1709 |
self->incr_count = newAV (); |
1710 |
self->incr_pos = 0; |
1711 |
self->incr_need = 1; |
1712 |
|
1713 |
av_push (self->incr_count, newSViv (1)); |
1714 |
} |
1715 |
|
1716 |
do |
1717 |
{ |
1718 |
if (!incr_parse (self, cborstr)) |
1719 |
{ |
1720 |
if (self->incr_need > self->max_size && self->max_size) |
1721 |
croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1722 |
(unsigned long)self->incr_need, (unsigned long)self->max_size); |
1723 |
|
1724 |
break; |
1725 |
} |
1726 |
|
1727 |
SV *sv; |
1728 |
char *offset; |
1729 |
|
1730 |
PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
1731 |
XPUSHs (sv); |
1732 |
|
1733 |
sv_chop (cborstr, offset); |
1734 |
|
1735 |
av_clear (self->incr_count); |
1736 |
av_push (self->incr_count, newSViv (1)); |
1737 |
|
1738 |
self->incr_pos = 0; |
1739 |
self->incr_need = self->incr_pos + 1; |
1740 |
} |
1741 |
while (ix); |
1742 |
} |
1743 |
|
1744 |
void incr_reset (CBOR *self) |
1745 |
CODE: |
1746 |
{ |
1747 |
SvREFCNT_dec (self->incr_count); |
1748 |
self->incr_count = 0; |
1749 |
} |
1750 |
|
1751 |
void DESTROY (CBOR *self) |
1752 |
PPCODE: |
1753 |
cbor_free (self); |
1754 |
|
1755 |
PROTOTYPES: ENABLE |
1756 |
|
1757 |
void encode_cbor (SV *scalar) |
1758 |
ALIAS: |
1759 |
encode_cbor = 0 |
1760 |
encode_cbor_sharing = F_ALLOW_SHARING |
1761 |
PPCODE: |
1762 |
{ |
1763 |
CBOR cbor; |
1764 |
cbor_init (&cbor); |
1765 |
cbor.flags |= ix; |
1766 |
PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1767 |
XPUSHs (scalar); |
1768 |
} |
1769 |
|
1770 |
void decode_cbor (SV *cborstr) |
1771 |
PPCODE: |
1772 |
{ |
1773 |
CBOR cbor; |
1774 |
cbor_init (&cbor); |
1775 |
PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1776 |
XPUSHs (cborstr); |
1777 |
} |
1778 |
|
1779 |
#ifdef __AFL_COMPILER |
1780 |
|
1781 |
void |
1782 |
afl_init () |
1783 |
CODE: |
1784 |
__AFL_INIT (); |
1785 |
|
1786 |
int |
1787 |
afl_loop (unsigned int count = 10000) |
1788 |
CODE: |
1789 |
RETVAL = __AFL_LOOP (count); |
1790 |
OUTPUT: |
1791 |
RETVAL |
1792 |
|
1793 |
#endif |
1794 |
|