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 |
|
12 |
#include "ecb.h" |
13 |
|
14 |
// compatibility with perl <5.18 |
15 |
#ifndef HvNAMELEN_get |
16 |
# define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
17 |
#endif |
18 |
#ifndef HvNAMELEN |
19 |
# define HvNAMELEN(hv) HvNAMELEN_get (hv) |
20 |
#endif |
21 |
#ifndef HvNAMEUTF8 |
22 |
# define HvNAMEUTF8(hv) 0 |
23 |
#endif |
24 |
|
25 |
// known tags |
26 |
enum cbor_tag |
27 |
{ |
28 |
// inofficial extensions (pending iana registration) |
29 |
CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object |
30 |
CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object |
31 |
CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing |
32 |
CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing |
33 |
CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref |
34 |
CBOR_TAG_STRINGREF = 28, // http://cbor.schmorp.de/stringref |
35 |
CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
36 |
|
37 |
// rfc7049 |
38 |
CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
39 |
CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
40 |
CBOR_TAG_POS_BIGNUM = 2, // byte string |
41 |
CBOR_TAG_NEG_BIGNUM = 3, // byte string |
42 |
CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
43 |
CBOR_TAG_BIGFLOAT = 5, // array |
44 |
|
45 |
CBOR_TAG_CONV_B64U = 21, // base64url, any |
46 |
CBOR_TAG_CONV_B64 = 22, // base64, any |
47 |
CBOR_TAG_CONV_HEX = 23, // base16, any |
48 |
CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
49 |
|
50 |
CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
51 |
CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
52 |
CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
53 |
CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
54 |
CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
55 |
|
56 |
CBOR_TAG_MAGIC = 55799 // self-describe cbor |
57 |
}; |
58 |
|
59 |
#define F_SHRINK 0x00000001UL |
60 |
#define F_ALLOW_UNKNOWN 0x00000002UL |
61 |
#define F_ALLOW_SHARING 0x00000004UL //TODO |
62 |
#define F_ALLOW_STRINGREF 0x00000008UL //TODO |
63 |
|
64 |
#define INIT_SIZE 32 // initial scalar size to be allocated |
65 |
|
66 |
#define SB do { |
67 |
#define SE } while (0) |
68 |
|
69 |
#define IN_RANGE_INC(type,val,beg,end) \ |
70 |
((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
71 |
<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
72 |
|
73 |
#define ERR_NESTING_EXCEEDED "cbor text or perl structure exceeds maximum nesting level (max_depth set too low?)" |
74 |
|
75 |
#ifdef USE_ITHREADS |
76 |
# define CBOR_SLOW 1 |
77 |
# define CBOR_STASH (cbor_stash ? cbor_stash : gv_stashpv ("CBOR::XS", 1)) |
78 |
#else |
79 |
# define CBOR_SLOW 0 |
80 |
# define CBOR_STASH cbor_stash |
81 |
#endif |
82 |
|
83 |
static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
84 |
static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
85 |
|
86 |
typedef struct { |
87 |
U32 flags; |
88 |
U32 max_depth; |
89 |
STRLEN max_size; |
90 |
SV *filter; |
91 |
} CBOR; |
92 |
|
93 |
ecb_inline void |
94 |
cbor_init (CBOR *cbor) |
95 |
{ |
96 |
Zero (cbor, 1, CBOR); |
97 |
cbor->max_depth = 512; |
98 |
} |
99 |
|
100 |
ecb_inline void |
101 |
cbor_free (CBOR *cbor) |
102 |
{ |
103 |
SvREFCNT_dec (cbor->filter); |
104 |
} |
105 |
|
106 |
///////////////////////////////////////////////////////////////////////////// |
107 |
// utility functions |
108 |
|
109 |
ecb_inline SV * |
110 |
get_bool (const char *name) |
111 |
{ |
112 |
SV *sv = get_sv (name, 1); |
113 |
|
114 |
SvREADONLY_on (sv); |
115 |
SvREADONLY_on (SvRV (sv)); |
116 |
|
117 |
return sv; |
118 |
} |
119 |
|
120 |
ecb_inline void |
121 |
shrink (SV *sv) |
122 |
{ |
123 |
sv_utf8_downgrade (sv, 1); |
124 |
|
125 |
if (SvLEN (sv) > SvCUR (sv) + 1) |
126 |
{ |
127 |
#ifdef SvPV_shrink_to_cur |
128 |
SvPV_shrink_to_cur (sv); |
129 |
#elif defined (SvPV_renew) |
130 |
SvPV_renew (sv, SvCUR (sv) + 1); |
131 |
#endif |
132 |
} |
133 |
} |
134 |
|
135 |
// minimum length of a string to be registered for stringref |
136 |
ecb_inline int |
137 |
minimum_string_length (UV idx) |
138 |
{ |
139 |
return idx > 23 |
140 |
? idx > 0xffU |
141 |
? idx > 0xffffU |
142 |
? idx > 0xffffffffU |
143 |
? 7 |
144 |
: 6 |
145 |
: 5 |
146 |
: 4 |
147 |
: 3; |
148 |
} |
149 |
|
150 |
///////////////////////////////////////////////////////////////////////////// |
151 |
// encoder |
152 |
|
153 |
// structure used for encoding CBOR |
154 |
typedef struct |
155 |
{ |
156 |
char *cur; // SvPVX (sv) + current output position |
157 |
char *end; // SvEND (sv) |
158 |
SV *sv; // result scalar |
159 |
CBOR cbor; |
160 |
U32 depth; // recursion level |
161 |
HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
162 |
UV stringref_idx; |
163 |
HV *shareable; // ptr => index, or 0 |
164 |
UV shareable_idx; |
165 |
} enc_t; |
166 |
|
167 |
ecb_inline void |
168 |
need (enc_t *enc, STRLEN len) |
169 |
{ |
170 |
if (ecb_expect_false (enc->cur + len >= enc->end)) |
171 |
{ |
172 |
STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
173 |
SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
174 |
enc->cur = SvPVX (enc->sv) + cur; |
175 |
enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
176 |
} |
177 |
} |
178 |
|
179 |
ecb_inline void |
180 |
encode_ch (enc_t *enc, char ch) |
181 |
{ |
182 |
need (enc, 1); |
183 |
*enc->cur++ = ch; |
184 |
} |
185 |
|
186 |
static void |
187 |
encode_uint (enc_t *enc, int major, UV len) |
188 |
{ |
189 |
need (enc, 9); |
190 |
|
191 |
if (len < 24) |
192 |
*enc->cur++ = major | len; |
193 |
else if (len <= 0xff) |
194 |
{ |
195 |
*enc->cur++ = major | 24; |
196 |
*enc->cur++ = len; |
197 |
} |
198 |
else if (len <= 0xffff) |
199 |
{ |
200 |
*enc->cur++ = major | 25; |
201 |
*enc->cur++ = len >> 8; |
202 |
*enc->cur++ = len; |
203 |
} |
204 |
else if (len <= 0xffffffff) |
205 |
{ |
206 |
*enc->cur++ = major | 26; |
207 |
*enc->cur++ = len >> 24; |
208 |
*enc->cur++ = len >> 16; |
209 |
*enc->cur++ = len >> 8; |
210 |
*enc->cur++ = len; |
211 |
} |
212 |
else |
213 |
{ |
214 |
*enc->cur++ = major | 27; |
215 |
*enc->cur++ = len >> 56; |
216 |
*enc->cur++ = len >> 48; |
217 |
*enc->cur++ = len >> 40; |
218 |
*enc->cur++ = len >> 32; |
219 |
*enc->cur++ = len >> 24; |
220 |
*enc->cur++ = len >> 16; |
221 |
*enc->cur++ = len >> 8; |
222 |
*enc->cur++ = len; |
223 |
} |
224 |
} |
225 |
|
226 |
ecb_inline void |
227 |
encode_tag (enc_t *enc, UV tag) |
228 |
{ |
229 |
encode_uint (enc, 0xc0, tag); |
230 |
} |
231 |
|
232 |
static void |
233 |
encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
234 |
{ |
235 |
if (ecb_expect_false (enc->cbor.flags & F_ALLOW_STRINGREF)) |
236 |
{ |
237 |
SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
238 |
|
239 |
if (SvOK (*svp)) |
240 |
{ |
241 |
// already registered, use stringref |
242 |
encode_tag (enc, CBOR_TAG_STRINGREF); |
243 |
encode_uint (enc, 0x00, SvUV (*svp)); |
244 |
return; |
245 |
} |
246 |
else if (len >= minimum_string_length (enc->stringref_idx)) |
247 |
{ |
248 |
// register only |
249 |
sv_setuv (*svp, enc->stringref_idx); |
250 |
++enc->stringref_idx; |
251 |
} |
252 |
} |
253 |
|
254 |
encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
255 |
need (enc, len); |
256 |
memcpy (enc->cur, str, len); |
257 |
enc->cur += len; |
258 |
} |
259 |
|
260 |
static void encode_sv (enc_t *enc, SV *sv); |
261 |
|
262 |
static void |
263 |
encode_av (enc_t *enc, AV *av) |
264 |
{ |
265 |
int i, len = av_len (av); |
266 |
|
267 |
if (enc->depth >= enc->cbor.max_depth) |
268 |
croak (ERR_NESTING_EXCEEDED); |
269 |
|
270 |
++enc->depth; |
271 |
|
272 |
encode_uint (enc, 0x80, len + 1); |
273 |
|
274 |
for (i = 0; i <= len; ++i) |
275 |
{ |
276 |
SV **svp = av_fetch (av, i, 0); |
277 |
encode_sv (enc, svp ? *svp : &PL_sv_undef); |
278 |
} |
279 |
|
280 |
--enc->depth; |
281 |
} |
282 |
|
283 |
static void |
284 |
encode_hv (enc_t *enc, HV *hv) |
285 |
{ |
286 |
HE *he; |
287 |
|
288 |
if (enc->depth >= enc->cbor.max_depth) |
289 |
croak (ERR_NESTING_EXCEEDED); |
290 |
|
291 |
++enc->depth; |
292 |
|
293 |
int pairs = hv_iterinit (hv); |
294 |
int mg = SvMAGICAL (hv); |
295 |
|
296 |
if (mg) |
297 |
encode_ch (enc, 0xa0 | 31); |
298 |
else |
299 |
encode_uint (enc, 0xa0, pairs); |
300 |
|
301 |
while ((he = hv_iternext (hv))) |
302 |
{ |
303 |
if (HeKLEN (he) == HEf_SVKEY) |
304 |
encode_sv (enc, HeSVKEY (he)); |
305 |
else |
306 |
encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
307 |
|
308 |
encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
309 |
} |
310 |
|
311 |
if (mg) |
312 |
encode_ch (enc, 0xe0 | 31); |
313 |
|
314 |
--enc->depth; |
315 |
} |
316 |
|
317 |
// encode objects, arrays and special \0=false and \1=true values. |
318 |
static void |
319 |
encode_rv (enc_t *enc, SV *sv) |
320 |
{ |
321 |
SvGETMAGIC (sv); |
322 |
|
323 |
if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING) |
324 |
&& ecb_expect_false (SvREFCNT (sv) > 1)) |
325 |
{ |
326 |
if (!enc->shareable) |
327 |
enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
328 |
|
329 |
SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
330 |
|
331 |
if (SvOK (*svp)) |
332 |
{ |
333 |
encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
334 |
encode_uint (enc, 0x00, SvUV (*svp)); |
335 |
return; |
336 |
} |
337 |
else |
338 |
{ |
339 |
sv_setuv (*svp, enc->shareable_idx); |
340 |
++enc->shareable_idx; |
341 |
encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
342 |
} |
343 |
} |
344 |
|
345 |
svtype svt = SvTYPE (sv); |
346 |
|
347 |
if (ecb_expect_false (SvOBJECT (sv))) |
348 |
{ |
349 |
HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
350 |
? types_boolean_stash |
351 |
: gv_stashpv ("Types::Serialiser::Boolean", 1); |
352 |
HV *error_stash = !CBOR_SLOW || types_error_stash |
353 |
? types_error_stash |
354 |
: gv_stashpv ("Types::Serialiser::Error", 1); |
355 |
HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
356 |
? cbor_tagged_stash |
357 |
: gv_stashpv ("CBOR::XS::Tagged" , 1); |
358 |
|
359 |
HV *stash = SvSTASH (sv); |
360 |
GV *method; |
361 |
|
362 |
if (stash == boolean_stash) |
363 |
encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
364 |
else if (stash == error_stash) |
365 |
encode_ch (enc, 0xe0 | 23); |
366 |
else if (stash == tagged_stash) |
367 |
{ |
368 |
if (svt != SVt_PVAV) |
369 |
croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
370 |
|
371 |
encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
372 |
encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
373 |
} |
374 |
else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
375 |
{ |
376 |
dSP; |
377 |
|
378 |
ENTER; SAVETMPS; PUSHMARK (SP); |
379 |
// we re-bless the reference to get overload and other niceties right |
380 |
XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
381 |
|
382 |
PUTBACK; |
383 |
// G_SCALAR ensures that return value is 1 |
384 |
call_sv ((SV *)GvCV (method), G_SCALAR); |
385 |
SPAGAIN; |
386 |
|
387 |
// catch this surprisingly common error |
388 |
if (SvROK (TOPs) && SvRV (TOPs) == sv) |
389 |
croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
390 |
|
391 |
encode_sv (enc, POPs); |
392 |
|
393 |
PUTBACK; |
394 |
|
395 |
FREETMPS; LEAVE; |
396 |
} |
397 |
else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
398 |
{ |
399 |
dSP; |
400 |
|
401 |
ENTER; SAVETMPS; PUSHMARK (SP); |
402 |
EXTEND (SP, 2); |
403 |
// we re-bless the reference to get overload and other niceties right |
404 |
PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
405 |
PUSHs (sv_cbor); |
406 |
|
407 |
PUTBACK; |
408 |
int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
409 |
SPAGAIN; |
410 |
|
411 |
// catch this surprisingly common error |
412 |
if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
413 |
croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
414 |
|
415 |
encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
416 |
encode_uint (enc, 0x80, count + 1); |
417 |
encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
418 |
|
419 |
while (count) |
420 |
encode_sv (enc, SP[1 - count--]); |
421 |
|
422 |
PUTBACK; |
423 |
|
424 |
FREETMPS; LEAVE; |
425 |
} |
426 |
else |
427 |
croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
428 |
SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
429 |
} |
430 |
else if (svt == SVt_PVHV) |
431 |
encode_hv (enc, (HV *)sv); |
432 |
else if (svt == SVt_PVAV) |
433 |
encode_av (enc, (AV *)sv); |
434 |
else |
435 |
{ |
436 |
encode_tag (enc, CBOR_TAG_INDIRECTION); |
437 |
encode_sv (enc, sv); |
438 |
} |
439 |
} |
440 |
|
441 |
static void |
442 |
encode_nv (enc_t *enc, SV *sv) |
443 |
{ |
444 |
double nv = SvNVX (sv); |
445 |
|
446 |
need (enc, 9); |
447 |
|
448 |
if (ecb_expect_false (nv == (U32)nv)) |
449 |
encode_uint (enc, 0x00, (U32)nv); |
450 |
//TODO: maybe I32? |
451 |
else if (ecb_expect_false (nv == (float)nv)) |
452 |
{ |
453 |
uint32_t fp = ecb_float_to_binary32 (nv); |
454 |
|
455 |
*enc->cur++ = 0xe0 | 26; |
456 |
|
457 |
if (!ecb_big_endian ()) |
458 |
fp = ecb_bswap32 (fp); |
459 |
|
460 |
memcpy (enc->cur, &fp, 4); |
461 |
enc->cur += 4; |
462 |
} |
463 |
else |
464 |
{ |
465 |
uint64_t fp = ecb_double_to_binary64 (nv); |
466 |
|
467 |
*enc->cur++ = 0xe0 | 27; |
468 |
|
469 |
if (!ecb_big_endian ()) |
470 |
fp = ecb_bswap64 (fp); |
471 |
|
472 |
memcpy (enc->cur, &fp, 8); |
473 |
enc->cur += 8; |
474 |
} |
475 |
} |
476 |
|
477 |
static void |
478 |
encode_sv (enc_t *enc, SV *sv) |
479 |
{ |
480 |
SvGETMAGIC (sv); |
481 |
|
482 |
if (SvPOKp (sv)) |
483 |
{ |
484 |
STRLEN len; |
485 |
char *str = SvPV (sv, len); |
486 |
encode_str (enc, SvUTF8 (sv), str, len); |
487 |
} |
488 |
else if (SvNOKp (sv)) |
489 |
encode_nv (enc, sv); |
490 |
else if (SvIOKp (sv)) |
491 |
{ |
492 |
if (SvIsUV (sv)) |
493 |
encode_uint (enc, 0x00, SvUVX (sv)); |
494 |
else if (SvIVX (sv) >= 0) |
495 |
encode_uint (enc, 0x00, SvIVX (sv)); |
496 |
else |
497 |
encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
498 |
} |
499 |
else if (SvROK (sv)) |
500 |
encode_rv (enc, SvRV (sv)); |
501 |
else if (!SvOK (sv)) |
502 |
encode_ch (enc, 0xe0 | 22); |
503 |
else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
504 |
encode_ch (enc, 0xe0 | 23); |
505 |
else |
506 |
croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
507 |
SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
508 |
} |
509 |
|
510 |
static SV * |
511 |
encode_cbor (SV *scalar, CBOR *cbor) |
512 |
{ |
513 |
enc_t enc = { }; |
514 |
|
515 |
enc.cbor = *cbor; |
516 |
enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
517 |
enc.cur = SvPVX (enc.sv); |
518 |
enc.end = SvEND (enc.sv); |
519 |
|
520 |
SvPOK_only (enc.sv); |
521 |
|
522 |
if (cbor->flags & F_ALLOW_STRINGREF) |
523 |
{ |
524 |
encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
525 |
enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
526 |
enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
527 |
} |
528 |
|
529 |
encode_sv (&enc, scalar); |
530 |
|
531 |
SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
532 |
*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
533 |
|
534 |
if (enc.cbor.flags & F_SHRINK) |
535 |
shrink (enc.sv); |
536 |
|
537 |
return enc.sv; |
538 |
} |
539 |
|
540 |
///////////////////////////////////////////////////////////////////////////// |
541 |
// decoder |
542 |
|
543 |
// structure used for decoding CBOR |
544 |
typedef struct |
545 |
{ |
546 |
U8 *cur; // current parser pointer |
547 |
U8 *end; // end of input string |
548 |
const char *err; // parse error, if != 0 |
549 |
CBOR cbor; |
550 |
U32 depth; // recursion depth |
551 |
U32 maxdepth; // recursion depth limit |
552 |
AV *shareable; |
553 |
AV *stringref; |
554 |
SV *decode_tagged; |
555 |
} dec_t; |
556 |
|
557 |
#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
558 |
|
559 |
#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
560 |
|
561 |
#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
562 |
#define DEC_DEC_DEPTH --dec->depth |
563 |
|
564 |
static UV |
565 |
decode_uint (dec_t *dec) |
566 |
{ |
567 |
switch (*dec->cur & 31) |
568 |
{ |
569 |
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
570 |
case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
571 |
case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
572 |
return *dec->cur++ & 31; |
573 |
|
574 |
case 24: |
575 |
WANT (2); |
576 |
dec->cur += 2; |
577 |
return dec->cur[-1]; |
578 |
|
579 |
case 25: |
580 |
WANT (3); |
581 |
dec->cur += 3; |
582 |
return (((UV)dec->cur[-2]) << 8) |
583 |
| ((UV)dec->cur[-1]); |
584 |
|
585 |
case 26: |
586 |
WANT (5); |
587 |
dec->cur += 5; |
588 |
return (((UV)dec->cur[-4]) << 24) |
589 |
| (((UV)dec->cur[-3]) << 16) |
590 |
| (((UV)dec->cur[-2]) << 8) |
591 |
| ((UV)dec->cur[-1]); |
592 |
|
593 |
case 27: |
594 |
WANT (9); |
595 |
dec->cur += 9; |
596 |
return (((UV)dec->cur[-8]) << 56) |
597 |
| (((UV)dec->cur[-7]) << 48) |
598 |
| (((UV)dec->cur[-6]) << 40) |
599 |
| (((UV)dec->cur[-5]) << 32) |
600 |
| (((UV)dec->cur[-4]) << 24) |
601 |
| (((UV)dec->cur[-3]) << 16) |
602 |
| (((UV)dec->cur[-2]) << 8) |
603 |
| ((UV)dec->cur[-1]); |
604 |
|
605 |
default: |
606 |
ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
607 |
} |
608 |
|
609 |
fail: |
610 |
return 0; |
611 |
} |
612 |
|
613 |
static SV *decode_sv (dec_t *dec); |
614 |
|
615 |
static SV * |
616 |
decode_av (dec_t *dec) |
617 |
{ |
618 |
AV *av = newAV (); |
619 |
|
620 |
DEC_INC_DEPTH; |
621 |
|
622 |
if ((*dec->cur & 31) == 31) |
623 |
{ |
624 |
++dec->cur; |
625 |
|
626 |
for (;;) |
627 |
{ |
628 |
WANT (1); |
629 |
|
630 |
if (*dec->cur == (0xe0 | 31)) |
631 |
{ |
632 |
++dec->cur; |
633 |
break; |
634 |
} |
635 |
|
636 |
av_push (av, decode_sv (dec)); |
637 |
} |
638 |
} |
639 |
else |
640 |
{ |
641 |
int i, len = decode_uint (dec); |
642 |
|
643 |
av_fill (av, len - 1); |
644 |
|
645 |
for (i = 0; i < len; ++i) |
646 |
AvARRAY (av)[i] = decode_sv (dec); |
647 |
} |
648 |
|
649 |
DEC_DEC_DEPTH; |
650 |
return newRV_noinc ((SV *)av); |
651 |
|
652 |
fail: |
653 |
SvREFCNT_dec (av); |
654 |
DEC_DEC_DEPTH; |
655 |
return &PL_sv_undef; |
656 |
} |
657 |
|
658 |
static void |
659 |
decode_he (dec_t *dec, HV *hv) |
660 |
{ |
661 |
// for speed reasons, we specialcase single-string |
662 |
// byte or utf-8 strings as keys, but only when !stringref |
663 |
|
664 |
if (ecb_expect_true (!dec->stringref)) |
665 |
if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) |
666 |
{ |
667 |
I32 len = decode_uint (dec); |
668 |
char *key = (char *)dec->cur; |
669 |
|
670 |
dec->cur += len; |
671 |
|
672 |
if (ecb_expect_false (dec->stringref)) |
673 |
av_push (dec->stringref, newSVpvn (key, len)); |
674 |
|
675 |
hv_store (hv, key, len, decode_sv (dec), 0); |
676 |
|
677 |
return; |
678 |
} |
679 |
else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) |
680 |
{ |
681 |
I32 len = decode_uint (dec); |
682 |
char *key = (char *)dec->cur; |
683 |
|
684 |
dec->cur += len; |
685 |
|
686 |
if (ecb_expect_false (dec->stringref)) |
687 |
av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); |
688 |
|
689 |
hv_store (hv, key, -len, decode_sv (dec), 0); |
690 |
|
691 |
return; |
692 |
} |
693 |
|
694 |
SV *k = decode_sv (dec); |
695 |
SV *v = decode_sv (dec); |
696 |
|
697 |
hv_store_ent (hv, k, v, 0); |
698 |
SvREFCNT_dec (k); |
699 |
} |
700 |
|
701 |
static SV * |
702 |
decode_hv (dec_t *dec) |
703 |
{ |
704 |
HV *hv = newHV (); |
705 |
|
706 |
DEC_INC_DEPTH; |
707 |
|
708 |
if ((*dec->cur & 31) == 31) |
709 |
{ |
710 |
++dec->cur; |
711 |
|
712 |
for (;;) |
713 |
{ |
714 |
WANT (1); |
715 |
|
716 |
if (*dec->cur == (0xe0 | 31)) |
717 |
{ |
718 |
++dec->cur; |
719 |
break; |
720 |
} |
721 |
|
722 |
decode_he (dec, hv); |
723 |
} |
724 |
} |
725 |
else |
726 |
{ |
727 |
int pairs = decode_uint (dec); |
728 |
|
729 |
while (pairs--) |
730 |
decode_he (dec, hv); |
731 |
} |
732 |
|
733 |
DEC_DEC_DEPTH; |
734 |
return newRV_noinc ((SV *)hv); |
735 |
|
736 |
fail: |
737 |
SvREFCNT_dec (hv); |
738 |
DEC_DEC_DEPTH; |
739 |
return &PL_sv_undef; |
740 |
} |
741 |
|
742 |
static SV * |
743 |
decode_str (dec_t *dec, int utf8) |
744 |
{ |
745 |
SV *sv = 0; |
746 |
|
747 |
if ((*dec->cur & 31) == 31) |
748 |
{ |
749 |
++dec->cur; |
750 |
|
751 |
sv = newSVpvn ("", 0); |
752 |
|
753 |
// not very fast, and certainly not robust against illegal input |
754 |
for (;;) |
755 |
{ |
756 |
WANT (1); |
757 |
|
758 |
if (*dec->cur == (0xe0 | 31)) |
759 |
{ |
760 |
++dec->cur; |
761 |
break; |
762 |
} |
763 |
|
764 |
sv_catsv (sv, decode_sv (dec)); |
765 |
} |
766 |
} |
767 |
else |
768 |
{ |
769 |
STRLEN len = decode_uint (dec); |
770 |
|
771 |
WANT (len); |
772 |
sv = newSVpvn (dec->cur, len); |
773 |
dec->cur += len; |
774 |
|
775 |
if (ecb_expect_false (dec->stringref) |
776 |
&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
777 |
av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
778 |
} |
779 |
|
780 |
if (utf8) |
781 |
SvUTF8_on (sv); |
782 |
|
783 |
return sv; |
784 |
|
785 |
fail: |
786 |
SvREFCNT_dec (sv); |
787 |
return &PL_sv_undef; |
788 |
} |
789 |
|
790 |
static SV * |
791 |
decode_tagged (dec_t *dec) |
792 |
{ |
793 |
SV *sv = 0; |
794 |
UV tag = decode_uint (dec); |
795 |
|
796 |
WANT (1); |
797 |
|
798 |
switch (tag) |
799 |
{ |
800 |
case CBOR_TAG_MAGIC: |
801 |
sv = decode_sv (dec); |
802 |
break; |
803 |
|
804 |
case CBOR_TAG_INDIRECTION: |
805 |
sv = newRV_noinc (decode_sv (dec)); |
806 |
break; |
807 |
|
808 |
case CBOR_TAG_STRINGREF_NAMESPACE: |
809 |
{ |
810 |
ENTER; SAVETMPS; |
811 |
|
812 |
SAVESPTR (dec->stringref); |
813 |
dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
814 |
|
815 |
sv = decode_sv (dec); |
816 |
|
817 |
FREETMPS; LEAVE; |
818 |
} |
819 |
break; |
820 |
|
821 |
case CBOR_TAG_STRINGREF: |
822 |
{ |
823 |
if ((*dec->cur >> 5) != 0) |
824 |
ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
825 |
|
826 |
UV idx = decode_uint (dec); |
827 |
|
828 |
if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
829 |
ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
830 |
|
831 |
sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
832 |
} |
833 |
break; |
834 |
|
835 |
case CBOR_TAG_VALUE_SHAREABLE: |
836 |
{ |
837 |
if (ecb_expect_false (!dec->shareable)) |
838 |
dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
839 |
|
840 |
sv = newSV (0); |
841 |
av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
842 |
|
843 |
SV *osv = decode_sv (dec); |
844 |
sv_setsv (sv, osv); |
845 |
SvREFCNT_dec_NN (osv); |
846 |
} |
847 |
break; |
848 |
|
849 |
case CBOR_TAG_VALUE_SHAREDREF: |
850 |
{ |
851 |
if ((*dec->cur >> 5) != 0) |
852 |
ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
853 |
|
854 |
UV idx = decode_uint (dec); |
855 |
|
856 |
if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
857 |
ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
858 |
|
859 |
sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
860 |
} |
861 |
break; |
862 |
|
863 |
case CBOR_TAG_PERL_OBJECT: |
864 |
{ |
865 |
sv = decode_sv (dec); |
866 |
|
867 |
if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
868 |
ERR ("corrupted CBOR data (non-array perl object)"); |
869 |
|
870 |
AV *av = (AV *)SvRV (sv); |
871 |
int len = av_len (av) + 1; |
872 |
HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
873 |
|
874 |
if (!stash) |
875 |
ERR ("cannot decode perl-object (package does not exist)"); |
876 |
|
877 |
GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
878 |
|
879 |
if (!method) |
880 |
ERR ("cannot decode perl-object (package does not have a THAW method)"); |
881 |
|
882 |
dSP; |
883 |
|
884 |
ENTER; SAVETMPS; PUSHMARK (SP); |
885 |
EXTEND (SP, len + 1); |
886 |
// we re-bless the reference to get overload and other niceties right |
887 |
PUSHs (*av_fetch (av, 0, 1)); |
888 |
PUSHs (sv_cbor); |
889 |
|
890 |
int i; |
891 |
|
892 |
for (i = 1; i < len; ++i) |
893 |
PUSHs (*av_fetch (av, i, 1)); |
894 |
|
895 |
PUTBACK; |
896 |
call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
897 |
SPAGAIN; |
898 |
|
899 |
if (SvTRUE (ERRSV)) |
900 |
{ |
901 |
FREETMPS; LEAVE; |
902 |
ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
903 |
} |
904 |
|
905 |
SvREFCNT_dec (sv); |
906 |
sv = SvREFCNT_inc (POPs); |
907 |
|
908 |
PUTBACK; |
909 |
|
910 |
FREETMPS; LEAVE; |
911 |
} |
912 |
break; |
913 |
|
914 |
default: |
915 |
{ |
916 |
sv = decode_sv (dec); |
917 |
|
918 |
dSP; |
919 |
ENTER; SAVETMPS; PUSHMARK (SP); |
920 |
EXTEND (SP, 2); |
921 |
PUSHs (newSVuv (tag)); |
922 |
PUSHs (sv); |
923 |
|
924 |
PUTBACK; |
925 |
int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
926 |
SPAGAIN; |
927 |
|
928 |
if (SvTRUE (ERRSV)) |
929 |
{ |
930 |
FREETMPS; LEAVE; |
931 |
ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
932 |
} |
933 |
|
934 |
if (count) |
935 |
{ |
936 |
SvREFCNT_dec (sv); |
937 |
sv = SvREFCNT_inc (POPs); |
938 |
} |
939 |
else |
940 |
{ |
941 |
AV *av = newAV (); |
942 |
av_push (av, newSVuv (tag)); |
943 |
av_push (av, sv); |
944 |
|
945 |
HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
946 |
? cbor_tagged_stash |
947 |
: gv_stashpv ("CBOR::XS::Tagged" , 1); |
948 |
sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
949 |
} |
950 |
|
951 |
PUTBACK; |
952 |
|
953 |
FREETMPS; LEAVE; |
954 |
} |
955 |
break; |
956 |
} |
957 |
|
958 |
return sv; |
959 |
|
960 |
fail: |
961 |
SvREFCNT_dec (sv); |
962 |
return &PL_sv_undef; |
963 |
} |
964 |
|
965 |
static SV * |
966 |
decode_sv (dec_t *dec) |
967 |
{ |
968 |
WANT (1); |
969 |
|
970 |
switch (*dec->cur >> 5) |
971 |
{ |
972 |
case 0: // unsigned int |
973 |
return newSVuv (decode_uint (dec)); |
974 |
case 1: // negative int |
975 |
return newSViv (-1 - (IV)decode_uint (dec)); |
976 |
case 2: // octet string |
977 |
return decode_str (dec, 0); |
978 |
case 3: // utf-8 string |
979 |
return decode_str (dec, 1); |
980 |
case 4: // array |
981 |
return decode_av (dec); |
982 |
case 5: // map |
983 |
return decode_hv (dec); |
984 |
case 6: // tag |
985 |
return decode_tagged (dec); |
986 |
case 7: // misc |
987 |
switch (*dec->cur++ & 31) |
988 |
{ |
989 |
case 20: |
990 |
#if CBOR_SLOW |
991 |
types_false = get_bool ("Types::Serialiser::false"); |
992 |
#endif |
993 |
return newSVsv (types_false); |
994 |
case 21: |
995 |
#if CBOR_SLOW |
996 |
types_true = get_bool ("Types::Serialiser::true"); |
997 |
#endif |
998 |
return newSVsv (types_true); |
999 |
case 22: |
1000 |
return newSVsv (&PL_sv_undef); |
1001 |
case 23: |
1002 |
#if CBOR_SLOW |
1003 |
types_error = get_bool ("Types::Serialiser::error"); |
1004 |
#endif |
1005 |
return newSVsv (types_error); |
1006 |
|
1007 |
case 25: |
1008 |
{ |
1009 |
WANT (2); |
1010 |
|
1011 |
uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1012 |
dec->cur += 2; |
1013 |
|
1014 |
return newSVnv (ecb_binary16_to_float (fp)); |
1015 |
} |
1016 |
|
1017 |
case 26: |
1018 |
{ |
1019 |
uint32_t fp; |
1020 |
WANT (4); |
1021 |
memcpy (&fp, dec->cur, 4); |
1022 |
dec->cur += 4; |
1023 |
|
1024 |
if (!ecb_big_endian ()) |
1025 |
fp = ecb_bswap32 (fp); |
1026 |
|
1027 |
return newSVnv (ecb_binary32_to_float (fp)); |
1028 |
} |
1029 |
|
1030 |
case 27: |
1031 |
{ |
1032 |
uint64_t fp; |
1033 |
WANT (8); |
1034 |
memcpy (&fp, dec->cur, 8); |
1035 |
dec->cur += 8; |
1036 |
|
1037 |
if (!ecb_big_endian ()) |
1038 |
fp = ecb_bswap64 (fp); |
1039 |
|
1040 |
return newSVnv (ecb_binary64_to_double (fp)); |
1041 |
} |
1042 |
|
1043 |
// 0..19 unassigned |
1044 |
// 24 reserved + unassigned (reserved values are not encodable) |
1045 |
default: |
1046 |
ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1047 |
} |
1048 |
|
1049 |
break; |
1050 |
} |
1051 |
|
1052 |
fail: |
1053 |
return &PL_sv_undef; |
1054 |
} |
1055 |
|
1056 |
static SV * |
1057 |
decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1058 |
{ |
1059 |
dec_t dec = { }; |
1060 |
SV *sv; |
1061 |
STRLEN len; |
1062 |
char *data = SvPVbyte (string, len); |
1063 |
|
1064 |
if (len > cbor->max_size && cbor->max_size) |
1065 |
croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1066 |
(unsigned long)len, (unsigned long)cbor->max_size); |
1067 |
|
1068 |
dec.cbor = *cbor; |
1069 |
dec.cur = (U8 *)data; |
1070 |
dec.end = (U8 *)data + len; |
1071 |
|
1072 |
sv = decode_sv (&dec); |
1073 |
|
1074 |
if (offset_return) |
1075 |
*offset_return = dec.cur; |
1076 |
|
1077 |
if (!(offset_return || !sv)) |
1078 |
if (dec.cur != dec.end && !dec.err) |
1079 |
dec.err = "garbage after CBOR object"; |
1080 |
|
1081 |
if (dec.err) |
1082 |
{ |
1083 |
SvREFCNT_dec (sv); |
1084 |
croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1085 |
} |
1086 |
|
1087 |
sv = sv_2mortal (sv); |
1088 |
|
1089 |
return sv; |
1090 |
} |
1091 |
|
1092 |
///////////////////////////////////////////////////////////////////////////// |
1093 |
// XS interface functions |
1094 |
|
1095 |
MODULE = CBOR::XS PACKAGE = CBOR::XS |
1096 |
|
1097 |
BOOT: |
1098 |
{ |
1099 |
cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1100 |
cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1101 |
|
1102 |
types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
1103 |
types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
1104 |
|
1105 |
types_true = get_bool ("Types::Serialiser::true" ); |
1106 |
types_false = get_bool ("Types::Serialiser::false"); |
1107 |
types_error = get_bool ("Types::Serialiser::error"); |
1108 |
|
1109 |
default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1110 |
|
1111 |
sv_cbor = newSVpv ("CBOR", 0); |
1112 |
SvREADONLY_on (sv_cbor); |
1113 |
} |
1114 |
|
1115 |
PROTOTYPES: DISABLE |
1116 |
|
1117 |
void CLONE (...) |
1118 |
CODE: |
1119 |
cbor_stash = 0; |
1120 |
cbor_tagged_stash = 0; |
1121 |
types_error_stash = 0; |
1122 |
types_boolean_stash = 0; |
1123 |
|
1124 |
void new (char *klass) |
1125 |
PPCODE: |
1126 |
{ |
1127 |
SV *pv = NEWSV (0, sizeof (CBOR)); |
1128 |
SvPOK_only (pv); |
1129 |
cbor_init ((CBOR *)SvPVX (pv)); |
1130 |
XPUSHs (sv_2mortal (sv_bless ( |
1131 |
newRV_noinc (pv), |
1132 |
strEQ (klass, "CBOR::XS") ? CBOR_STASH : gv_stashpv (klass, 1) |
1133 |
))); |
1134 |
} |
1135 |
|
1136 |
void shrink (CBOR *self, int enable = 1) |
1137 |
ALIAS: |
1138 |
shrink = F_SHRINK |
1139 |
allow_unknown = F_ALLOW_UNKNOWN |
1140 |
allow_sharing = F_ALLOW_SHARING |
1141 |
allow_stringref = F_ALLOW_STRINGREF |
1142 |
PPCODE: |
1143 |
{ |
1144 |
if (enable) |
1145 |
self->flags |= ix; |
1146 |
else |
1147 |
self->flags &= ~ix; |
1148 |
|
1149 |
XPUSHs (ST (0)); |
1150 |
} |
1151 |
|
1152 |
void get_shrink (CBOR *self) |
1153 |
ALIAS: |
1154 |
get_shrink = F_SHRINK |
1155 |
get_allow_unknown = F_ALLOW_UNKNOWN |
1156 |
get_allow_sharing = F_ALLOW_SHARING |
1157 |
get_allow_stringref = F_ALLOW_STRINGREF |
1158 |
PPCODE: |
1159 |
XPUSHs (boolSV (self->flags & ix)); |
1160 |
|
1161 |
void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1162 |
PPCODE: |
1163 |
self->max_depth = max_depth; |
1164 |
XPUSHs (ST (0)); |
1165 |
|
1166 |
U32 get_max_depth (CBOR *self) |
1167 |
CODE: |
1168 |
RETVAL = self->max_depth; |
1169 |
OUTPUT: |
1170 |
RETVAL |
1171 |
|
1172 |
void max_size (CBOR *self, U32 max_size = 0) |
1173 |
PPCODE: |
1174 |
self->max_size = max_size; |
1175 |
XPUSHs (ST (0)); |
1176 |
|
1177 |
int get_max_size (CBOR *self) |
1178 |
CODE: |
1179 |
RETVAL = self->max_size; |
1180 |
OUTPUT: |
1181 |
RETVAL |
1182 |
|
1183 |
void filter (CBOR *self, SV *filter = 0) |
1184 |
PPCODE: |
1185 |
SvREFCNT_dec (self->filter); |
1186 |
self->filter = filter ? newSVsv (filter) : filter; |
1187 |
XPUSHs (ST (0)); |
1188 |
|
1189 |
SV *get_filter (CBOR *self) |
1190 |
CODE: |
1191 |
RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1192 |
OUTPUT: |
1193 |
RETVAL |
1194 |
|
1195 |
void encode (CBOR *self, SV *scalar) |
1196 |
PPCODE: |
1197 |
PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1198 |
XPUSHs (scalar); |
1199 |
|
1200 |
void decode (CBOR *self, SV *cborstr) |
1201 |
PPCODE: |
1202 |
PUTBACK; cborstr = decode_cbor (cborstr, self, 0); SPAGAIN; |
1203 |
XPUSHs (cborstr); |
1204 |
|
1205 |
void decode_prefix (CBOR *self, SV *cborstr) |
1206 |
PPCODE: |
1207 |
{ |
1208 |
SV *sv; |
1209 |
char *offset; |
1210 |
PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
1211 |
EXTEND (SP, 2); |
1212 |
PUSHs (sv); |
1213 |
PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1214 |
} |
1215 |
|
1216 |
void DESTROY (CBOR *self) |
1217 |
PPCODE: |
1218 |
cbor_free (self); |
1219 |
|
1220 |
PROTOTYPES: ENABLE |
1221 |
|
1222 |
void encode_cbor (SV *scalar) |
1223 |
PPCODE: |
1224 |
{ |
1225 |
CBOR cbor; |
1226 |
cbor_init (&cbor); |
1227 |
PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1228 |
XPUSHs (scalar); |
1229 |
} |
1230 |
|
1231 |
void decode_cbor (SV *cborstr) |
1232 |
PPCODE: |
1233 |
{ |
1234 |
CBOR cbor; |
1235 |
cbor_init (&cbor); |
1236 |
PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1237 |
XPUSHs (cborstr); |
1238 |
} |
1239 |
|