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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.53 by root, Sun Apr 24 19:51:41 2016 UTC vs.
Revision 1.80 by root, Fri Sep 8 20:03:06 2023 UTC

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>
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
27# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
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
32
33// perl's is_utf8_string interprets len=0 as "calculate len", but we want it to mean 0
34#define cbor_is_utf8_string(str,len) (!(len) || is_utf8_string ((str), (len)))
28 35
29// known major and minor types 36// known major and minor types
30enum cbor_type 37enum cbor_type
31{ 38{
32 MAJOR_SHIFT = 5, 39 MAJOR_SHIFT = 5,
95 CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 102 CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
96 103
97 CBOR_TAG_MAGIC = 55799, // self-describe cbor 104 CBOR_TAG_MAGIC = 55799, // self-describe cbor
98}; 105};
99 106
107// known forced types, also hardcoded in CBOR.pm
108enum
109{
110 AS_CBOR = 0,
111 AS_INT = 1,
112 AS_BYTES = 2,
113 AS_TEXT = 3,
114 AS_FLOAT16 = 4,
115 AS_FLOAT32 = 5,
116 AS_FLOAT64 = 6,
117 AS_MAP = 7,
118 // possibly future enhancements: (generic) float, (generic) string
119};
120
100#define F_SHRINK 0x00000001UL 121#define F_SHRINK 0x00000001UL
101#define F_ALLOW_UNKNOWN 0x00000002UL 122#define F_ALLOW_UNKNOWN 0x00000002UL
102#define F_ALLOW_SHARING 0x00000004UL 123#define F_ALLOW_SHARING 0x00000004UL
103#define F_ALLOW_CYCLES 0x00000008UL 124#define F_ALLOW_CYCLES 0x00000008UL
125#define F_ALLOW_WEAK_CYCLES 0x00000010UL
126#define F_FORBID_OBJECTS 0x00000020UL
104#define F_PACK_STRINGS 0x00000010UL 127#define F_PACK_STRINGS 0x00000040UL
105#define F_UTF8_STRINGS 0x00000020UL
106#define F_UTF8_KEYS 0x00000040UL 128#define F_TEXT_KEYS 0x00000080UL
129#define F_TEXT_STRINGS 0x00000100UL
107#define F_VALIDATE_UTF8 0x00000080UL 130#define F_VALIDATE_UTF8 0x00000200UL
108 131
109#define INIT_SIZE 32 // initial scalar size to be allocated 132#define INIT_SIZE 32 // initial scalar size to be allocated
110 133
111#define SB do { 134#define SB do {
112#define SE } while (0) 135#define SE } while (0)
182#endif 205#endif
183 } 206 }
184} 207}
185 208
186// minimum length of a string to be registered for stringref 209// minimum length of a string to be registered for stringref
187ecb_inline int 210ecb_inline STRLEN
188minimum_string_length (UV idx) 211minimum_string_length (UV idx)
189{ 212{
190 return idx > 23 213 return idx <= 23 ? 3
191 ? idx > 0xffU 214 : idx <= 0xffU ? 4
192 ? idx > 0xffffU 215 : idx <= 0xffffU ? 5
193 ? idx > 0xffffffffU 216 : idx <= 0xffffffffU ? 7
194 ? 11 217 : 11;
195 : 7
196 : 5
197 : 4
198 : 3;
199} 218}
200 219
201///////////////////////////////////////////////////////////////////////////// 220/////////////////////////////////////////////////////////////////////////////
202// encoder 221// encoder
203 222
216} enc_t; 235} enc_t;
217 236
218ecb_inline void 237ecb_inline void
219need (enc_t *enc, STRLEN len) 238need (enc_t *enc, STRLEN len)
220{ 239{
221 if (ecb_expect_false (enc->cur + len >= enc->end)) 240 if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len))
222 { 241 {
223 STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); 242 STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
224 SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); 243 SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
225 enc->cur = SvPVX (enc->sv) + cur; 244 enc->cur = SvPVX (enc->sv) + cur;
226 enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; 245 enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
227 } 246 }
228} 247}
229 248
249static void encode_sv (enc_t *enc, SV *sv);
250
230ecb_inline void 251ecb_inline void
231encode_ch (enc_t *enc, char ch) 252encode_ch (enc_t *enc, char ch)
232{ 253{
233 need (enc, 1); 254 need (enc, 1);
234 *enc->cur++ = ch; 255 *enc->cur++ = ch;
235} 256}
236 257
258// used for tags, intregers, element counts and so on
237static void 259static void
238encode_uint (enc_t *enc, int major, UV len) 260encode_uint (enc_t *enc, int major, UV len)
239{ 261{
240 need (enc, 9); 262 need (enc, 9);
241 263
272 *enc->cur++ = len >> 8; 294 *enc->cur++ = len >> 8;
273 *enc->cur++ = len; 295 *enc->cur++ = len;
274 } 296 }
275} 297}
276 298
299// encodes a perl value into a CBOR integer
300ecb_inline void
301encode_int (enc_t *enc, SV *sv)
302{
303 if (SvIsUV (sv))
304 encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
305 else if (SvIVX (sv) >= 0)
306 encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
307 else
308 encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
309}
310
277ecb_inline void 311ecb_inline void
278encode_tag (enc_t *enc, UV tag) 312encode_tag (enc_t *enc, UV tag)
279{ 313{
280 encode_uint (enc, MAJOR_TAG, tag); 314 encode_uint (enc, MAJOR_TAG, tag);
281} 315}
317 need (enc, len); 351 need (enc, len);
318 memcpy (enc->cur, str, len); 352 memcpy (enc->cur, str, len);
319 enc->cur += len; 353 enc->cur += len;
320} 354}
321 355
322ecb_inline 356ecb_inline void
323encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) 357encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
324{ 358{
325 if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) 359 if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
326 { 360 {
327 SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); 361 SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
342 } 376 }
343 377
344 encode_str (enc, upgrade_utf8, utf8, str, len); 378 encode_str (enc, upgrade_utf8, utf8, str, len);
345} 379}
346 380
347static void encode_sv (enc_t *enc, SV *sv); 381ecb_inline void
382encode_float16 (enc_t *enc, NV nv)
383{
384 need (enc, 1+2);
385
386 *enc->cur++ = MAJOR_MISC | MISC_FLOAT16;
387
388 uint16_t fp = ecb_float_to_binary16 (nv);
389
390 if (!ecb_big_endian ())
391 fp = ecb_bswap16 (fp);
392
393 memcpy (enc->cur, &fp, 2);
394 enc->cur += 2;
395}
396
397ecb_inline void
398encode_float32 (enc_t *enc, NV nv)
399{
400 need (enc, 1+4);
401
402 *enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
403
404 uint32_t fp = ecb_float_to_binary32 (nv);
405
406 if (!ecb_big_endian ())
407 fp = ecb_bswap32 (fp);
408
409 memcpy (enc->cur, &fp, 4);
410 enc->cur += 4;
411}
412
413ecb_inline void
414encode_float64 (enc_t *enc, NV nv)
415{
416 need (enc, 1+8);
417
418 *enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
419
420 uint64_t fp = ecb_double_to_binary64 (nv);
421
422 if (!ecb_big_endian ())
423 fp = ecb_bswap64 (fp);
424
425 memcpy (enc->cur, &fp, 8);
426 enc->cur += 8;
427}
428
429ecb_inline void
430encode_bool (enc_t *enc, int istrue)
431{
432 encode_ch (enc, istrue ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE);
433}
434
435// encodes an arrayref containing key-value pairs as CBOR map
436ecb_inline void
437encode_array_as_map (enc_t *enc, SV *sv)
438{
439 if (enc->depth >= enc->cbor.max_depth)
440 croak (ERR_NESTING_EXCEEDED);
441
442 ++enc->depth;
443
444 // as_map does error checking for us, but we re-check in case
445 // things have changed.
446
447 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
448 croak ("CBOR::XS::as_map requires an array reference (did you change the array after calling as_map?)");
449
450 AV *av = (AV *)SvRV (sv);
451 int i, len = av_len (av);
452
453 if (!(len & 1))
454 croak ("CBOR::XS::as_map requires an even number of elements (did you change the array after calling as_map?)");
455
456 encode_uint (enc, MAJOR_MAP, (len + 1) >> 1);
457
458 for (i = 0; i <= len; ++i)
459 {
460 SV **svp = av_fetch (av, i, 0);
461 encode_sv (enc, svp ? *svp : &PL_sv_undef);
462 }
463
464 --enc->depth;
465}
466
467ecb_inline void
468encode_forced (enc_t *enc, UV type, SV *sv)
469{
470 switch (type)
471 {
472 case AS_CBOR:
473 {
474 STRLEN len;
475 char *str = SvPVbyte (sv, len);
476
477 need (enc, len);
478 memcpy (enc->cur, str, len);
479 enc->cur += len;
480 }
481 break;
482
483 case AS_BYTES:
484 {
485 STRLEN len;
486 char *str = SvPVbyte (sv, len);
487 encode_strref (enc, 0, 0, str, len);
488 }
489 break;
490
491 case AS_TEXT:
492 {
493 STRLEN len;
494 char *str = SvPVutf8 (sv, len);
495 encode_strref (enc, 1, 1, str, len);
496 }
497 break;
498
499 case AS_INT: encode_int (enc, sv); break;
500
501 case AS_FLOAT16: encode_float16 (enc, SvNV (sv)); break;
502 case AS_FLOAT32: encode_float32 (enc, SvNV (sv)); break;
503 case AS_FLOAT64: encode_float64 (enc, SvNV (sv)); break;
504
505 case AS_MAP: encode_array_as_map (enc, sv); break;
506
507 default:
508 croak ("encountered malformed CBOR::XS::Tagged object");
509 }
510}
348 511
349static void 512static void
350encode_av (enc_t *enc, AV *av) 513encode_av (enc_t *enc, AV *av)
351{ 514{
352 int i, len = av_len (av); 515 int i, len = av_len (av);
356 519
357 ++enc->depth; 520 ++enc->depth;
358 521
359 encode_uint (enc, MAJOR_ARRAY, len + 1); 522 encode_uint (enc, MAJOR_ARRAY, len + 1);
360 523
361 if (SvMAGICAL (av)) 524 if (ecb_expect_false (SvMAGICAL (av)))
362 for (i = 0; i <= len; ++i) 525 for (i = 0; i <= len; ++i)
363 { 526 {
364 SV **svp = av_fetch (av, i, 0); 527 SV **svp = av_fetch (av, i, 0);
365 encode_sv (enc, svp ? *svp : &PL_sv_undef); 528 encode_sv (enc, svp ? *svp : &PL_sv_undef);
366 } 529 }
385 ++enc->depth; 548 ++enc->depth;
386 549
387 int pairs = hv_iterinit (hv); 550 int pairs = hv_iterinit (hv);
388 int mg = SvMAGICAL (hv); 551 int mg = SvMAGICAL (hv);
389 552
390 if (mg) 553 if (ecb_expect_false (mg))
391 encode_ch (enc, MAJOR_MAP | MINOR_INDEF); 554 encode_ch (enc, MAJOR_MAP | MINOR_INDEF);
392 else 555 else
393 encode_uint (enc, MAJOR_MAP, pairs); 556 encode_uint (enc, MAJOR_MAP, pairs);
394 557
395 while ((he = hv_iternext (hv))) 558 while ((he = hv_iternext (hv)))
396 { 559 {
397 if (HeKLEN (he) == HEf_SVKEY) 560 if (HeKLEN (he) == HEf_SVKEY)
398 encode_sv (enc, HeSVKEY (he)); 561 encode_sv (enc, HeSVKEY (he));
399 else 562 else
400 encode_strref (enc, enc->cbor.flags & (F_UTF8_KEYS | F_UTF8_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); 563 encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he));
401 564
402 encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); 565 encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
403 } 566 }
404 567
405 if (mg) 568 if (ecb_expect_false (mg))
406 encode_ch (enc, MAJOR_MISC | MINOR_INDEF); 569 encode_ch (enc, MAJOR_MISC | MINOR_INDEF);
407 570
408 --enc->depth; 571 --enc->depth;
409} 572}
410 573
430 593
431 HV *stash = SvSTASH (sv); 594 HV *stash = SvSTASH (sv);
432 595
433 if (stash == boolean_stash) 596 if (stash == boolean_stash)
434 { 597 {
435 encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); 598 encode_bool (enc, SvIV (sv));
436 return; 599 return;
437 } 600 }
438 else if (stash == error_stash) 601 else if (stash == error_stash)
439 { 602 {
440 encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); 603 encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
443 else if (stash == tagged_stash) 606 else if (stash == tagged_stash)
444 { 607 {
445 if (svt != SVt_PVAV) 608 if (svt != SVt_PVAV)
446 croak ("encountered CBOR::XS::Tagged object that isn't an array"); 609 croak ("encountered CBOR::XS::Tagged object that isn't an array");
447 610
611 switch (av_len ((AV *)sv))
612 {
613 case 2-1:
614 // actually a tagged value
448 encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); 615 encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
449 encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); 616 encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));
617 break;
618
619 case 3-1:
620 // a forced type [value, type, undef]
621 encode_forced (enc, SvUV (*av_fetch ((AV *)sv, 1, 1)), *av_fetch ((AV *)sv, 0, 1));
622 break;
623
624 default:
625 croak ("encountered malformed CBOR::XS::Tagged object");
626 }
450 627
451 return; 628 return;
452 } 629 }
453 } 630 }
454 631
455 if (ecb_expect_false (SvREFCNT (sv) > 1) 632 if (ecb_expect_false (SvREFCNT (sv) > 1)
456 && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) 633 && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
457 { 634 {
458 if (!enc->shareable) 635 if (ecb_expect_false (!enc->shareable))
459 enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); 636 enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
460 637
461 SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); 638 SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
462 639
463 if (SvOK (*svp)) 640 if (SvOK (*svp))
477 if (ecb_expect_false (SvOBJECT (sv))) 654 if (ecb_expect_false (SvOBJECT (sv)))
478 { 655 {
479 HV *stash = SvSTASH (sv); 656 HV *stash = SvSTASH (sv);
480 GV *method; 657 GV *method;
481 658
659 if (enc->cbor.flags & F_FORBID_OBJECTS)
660 croak ("encountered object '%s', but forbid_objects is enabled",
661 SvPV_nolen (sv_2mortal (newRV_inc (sv))));
482 if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) 662 else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
483 { 663 {
484 dSP; 664 dSP;
485 665
486 ENTER; SAVETMPS; 666 ENTER; SAVETMPS;
487 PUSHMARK (SP); 667 PUSHMARK (SP);
506 else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) 686 else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
507 { 687 {
508 dSP; 688 dSP;
509 689
510 ENTER; SAVETMPS; 690 ENTER; SAVETMPS;
511 SAVESTACK_POS ();
512 PUSHMARK (SP); 691 PUSHMARK (SP);
513 EXTEND (SP, 2); 692 EXTEND (SP, 2);
514 // we re-bless the reference to get overload and other niceties right 693 // we re-bless the reference to get overload and other niceties right
515 PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); 694 PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
516 PUSHs (sv_cbor); 695 PUSHs (sv_cbor);
525 704
526 encode_tag (enc, CBOR_TAG_PERL_OBJECT); 705 encode_tag (enc, CBOR_TAG_PERL_OBJECT);
527 encode_uint (enc, MAJOR_ARRAY, count + 1); 706 encode_uint (enc, MAJOR_ARRAY, count + 1);
528 encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); 707 encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
529 708
530 while (count) 709 {
710 int i;
711
712 for (i = 0; i < count; ++i)
531 encode_sv (enc, SP[1 - count--]); 713 encode_sv (enc, SP[i + 1 - count]);
714
715 SP -= count;
716 }
532 717
533 PUTBACK; 718 PUTBACK;
534 719
535 FREETMPS; LEAVE; 720 FREETMPS; LEAVE;
536 } 721 }
558 743
559 if (ecb_expect_false (nv == (NV)(U32)nv)) 744 if (ecb_expect_false (nv == (NV)(U32)nv))
560 encode_uint (enc, MAJOR_POS_INT, (U32)nv); 745 encode_uint (enc, MAJOR_POS_INT, (U32)nv);
561 //TODO: maybe I32? 746 //TODO: maybe I32?
562 else if (ecb_expect_false (nv == (float)nv)) 747 else if (ecb_expect_false (nv == (float)nv))
563 { 748 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 749 else
575 { 750 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} 751}
587 752
588static void 753static void
589encode_sv (enc_t *enc, SV *sv) 754encode_sv (enc_t *enc, SV *sv)
590{ 755{
592 757
593 if (SvPOKp (sv)) 758 if (SvPOKp (sv))
594 { 759 {
595 STRLEN len; 760 STRLEN len;
596 char *str = SvPV (sv, len); 761 char *str = SvPV (sv, len);
597 encode_strref (enc, enc->cbor.flags & F_UTF8_STRINGS, SvUTF8 (sv), str, len); 762 encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
598 } 763 }
599 else if (SvNOKp (sv)) 764 else if (SvNOKp (sv))
600 encode_nv (enc, sv); 765 encode_nv (enc, sv);
601 else if (SvIOKp (sv)) 766 else if (SvIOKp (sv))
602 { 767 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)) 768 else if (SvROK (sv))
611 encode_rv (enc, SvRV (sv)); 769 encode_rv (enc, SvRV (sv));
612 else if (!SvOK (sv)) 770 else if (!SvOK (sv))
613 encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); 771 encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
614 else if (enc->cbor.flags & F_ALLOW_UNKNOWN) 772 else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
621static SV * 779static SV *
622encode_cbor (SV *scalar, CBOR *cbor) 780encode_cbor (SV *scalar, CBOR *cbor)
623{ 781{
624 enc_t enc = { 0 }; 782 enc_t enc = { 0 };
625 783
626 enc.cbor = *cbor; 784 enc.cbor = *cbor;
627 enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); 785 enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
628 enc.cur = SvPVX (enc.sv); 786 enc.cur = SvPVX (enc.sv);
629 enc.end = SvEND (enc.sv); 787 enc.end = SvEND (enc.sv);
630 788
631 SvPOK_only (enc.sv); 789 SvPOK_only (enc.sv);
632 790
633 if (cbor->flags & F_PACK_STRINGS) 791 if (cbor->flags & F_PACK_STRINGS)
634 { 792 {
661 U32 depth; // recursion depth 819 U32 depth; // recursion depth
662 U32 maxdepth; // recursion depth limit 820 U32 maxdepth; // recursion depth limit
663 AV *shareable; 821 AV *shareable;
664 AV *stringref; 822 AV *stringref;
665 SV *decode_tagged; 823 SV *decode_tagged;
824 SV *err_sv; // optional sv for error, needs to be freed
666} dec_t; 825} dec_t;
667 826
668#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE 827// set dec->err to ERRSV
828ecb_cold static void
829err_errsv (dec_t *dec)
830{
831 if (!dec->err)
832 {
833 dec->err_sv = newSVsv (ERRSV);
669 834
670#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") 835 // chop off the trailing \n
836 SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1);
837 *SvEND (dec->err_sv) = 0;
671 838
839 dec->err = SvPVutf8_nolen (dec->err_sv);
840 }
841}
842
843// the following functions are used to reduce code size and help the compiler to optimise
844ecb_cold static void
845err_set (dec_t *dec, const char *reason)
846{
847 if (!dec->err)
848 dec->err = reason;
849}
850
851ecb_cold static void
852err_unexpected_end (dec_t *dec)
853{
854 err_set (dec, "unexpected end of CBOR data");
855}
856
857#define ERR_DO(do) SB do; goto fail; SE
858#define ERR(reason) ERR_DO (err_set (dec, reason))
859#define ERR_ERRSV ERR_DO (err_errsv (dec))
860
861#define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec))
862
672#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) 863#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 864#define DEC_DEC_DEPTH --dec->depth
674 865
675static UV 866static UV
676decode_uint (dec_t *dec) 867decode_uint (dec_t *dec)
677{ 868{
743 934
744 for (;;) 935 for (;;)
745 { 936 {
746 WANT (1); 937 WANT (1);
747 938
748 if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) 939 if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
749 { 940 {
750 ++dec->cur; 941 ++dec->cur;
751 break; 942 break;
752 } 943 }
753 944
754 av_push (av, decode_sv (dec)); 945 av_push (av, decode_sv (dec));
755 } 946 }
756 } 947 }
757 else 948 else
758 { 949 {
759 int i, len = decode_uint (dec); 950 UV i, len = decode_uint (dec);
760 951
761 WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays 952 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); 953 av_fill (av, len - 1);
763 954
764 for (i = 0; i < len; ++i) 955 for (i = 0; i < len; ++i)
767 958
768 DEC_DEC_DEPTH; 959 DEC_DEC_DEPTH;
769 return newRV_noinc ((SV *)av); 960 return newRV_noinc ((SV *)av);
770 961
771fail: 962fail:
772 SvREFCNT_dec (av); 963 SvREFCNT_dec_NN (av);
773 DEC_DEC_DEPTH; 964 DEC_DEC_DEPTH;
774 return &PL_sv_undef; 965 return &PL_sv_undef;
775} 966}
776 967
777static void 968static void
781 // byte or utf-8 strings as keys, but only when !stringref 972 // byte or utf-8 strings as keys, but only when !stringref
782 973
783 if (ecb_expect_true (!dec->stringref)) 974 if (ecb_expect_true (!dec->stringref))
784 if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) 975 if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
785 { 976 {
786 I32 len = decode_uint (dec); 977 STRLEN len = decode_uint (dec);
787 char *key = (char *)dec->cur; 978 char *key = (char *)dec->cur;
788 979
789 WANT (len); 980 WANT (len);
790 dec->cur += len; 981 dec->cur += len;
791 982
793 984
794 return; 985 return;
795 } 986 }
796 else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) 987 else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
797 { 988 {
798 I32 len = decode_uint (dec); 989 STRLEN len = decode_uint (dec);
799 char *key = (char *)dec->cur; 990 char *key = (char *)dec->cur;
800 991
801 WANT (len); 992 WANT (len);
802 dec->cur += len; 993 dec->cur += len;
803 994
804 if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) 995 if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
805 if (!is_utf8_string (key, len)) 996 if (!cbor_is_utf8_string ((U8 *)key, len))
806 ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); 997 ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
807 998
808 hv_store (hv, key, -len, decode_sv (dec), 0); 999 hv_store (hv, key, -len, decode_sv (dec), 0);
809 1000
810 return; 1001 return;
811 } 1002 }
812 1003
813 SV *k = decode_sv (dec); 1004 SV *k = decode_sv (dec);
814 SV *v = decode_sv (dec); 1005 SV *v = decode_sv (dec);
815 1006
1007 // we leak memory if uncaught exceptions are thrown by random magical
1008 // methods, and this is hopefully the only place where it can happen,
1009 // so if there is a chance of an exception, take the very slow path.
1010 // since catching exceptions is "undocumented/internal/forbidden" by
1011 // the new p5p powers, we need to call out to a perl function :/
1012 if (ecb_expect_false (SvAMAGIC (k)))
1013 {
1014 dSP;
1015
1016 ENTER; SAVETMPS;
1017 PUSHMARK (SP);
1018 EXTEND (SP, 3);
1019 PUSHs (sv_2mortal (newRV_inc ((SV *)hv)));
1020 PUSHs (sv_2mortal (k));
1021 PUSHs (sv_2mortal (v));
1022
1023 PUTBACK;
1024 call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL);
1025 SPAGAIN;
1026
1027 FREETMPS; LEAVE;
1028
1029 if (SvTRUE (ERRSV))
1030 ERR_ERRSV;
1031
1032 return;
1033 }
1034
816 hv_store_ent (hv, k, v, 0); 1035 hv_store_ent (hv, k, v, 0);
817 SvREFCNT_dec (k); 1036 SvREFCNT_dec_NN (k);
818 1037
819fail: 1038fail:
820 ; 1039 ;
821} 1040}
822 1041
833 1052
834 for (;;) 1053 for (;;)
835 { 1054 {
836 WANT (1); 1055 WANT (1);
837 1056
838 if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) 1057 if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
839 { 1058 {
840 ++dec->cur; 1059 ++dec->cur;
841 break; 1060 break;
842 } 1061 }
843 1062
844 decode_he (dec, hv); 1063 decode_he (dec, hv);
845 } 1064 }
846 } 1065 }
847 else 1066 else
848 { 1067 {
849 int pairs = decode_uint (dec); 1068 UV pairs = decode_uint (dec);
1069
1070 WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes
850 1071
851 while (pairs--) 1072 while (pairs--)
852 decode_he (dec, hv); 1073 decode_he (dec, hv);
853 } 1074 }
854 1075
855 DEC_DEC_DEPTH; 1076 DEC_DEC_DEPTH;
856 return newRV_noinc ((SV *)hv); 1077 return newRV_noinc ((SV *)hv);
857 1078
858fail: 1079fail:
859 SvREFCNT_dec (hv); 1080 SvREFCNT_dec_NN (hv);
860 DEC_DEC_DEPTH; 1081 DEC_DEC_DEPTH;
861 return &PL_sv_undef; 1082 return &PL_sv_undef;
862} 1083}
863 1084
864static SV * 1085static SV *
865decode_str (dec_t *dec, int utf8) 1086decode_str (dec_t *dec, int utf8)
866{ 1087{
867 SV *sv = 0; 1088 SV *sv = 0;
868 1089
869 if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) 1090 if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF))
870 { 1091 {
871 // indefinite length strings 1092 // indefinite length strings
872 ++dec->cur; 1093 ++dec->cur;
873 1094
874 U8 major = *dec->cur & MAJOR_MISC; 1095 U8 major = *dec->cur & MAJOR_MISC;
909 } 1130 }
910 1131
911 if (utf8) 1132 if (utf8)
912 { 1133 {
913 if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) 1134 if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
914 if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) 1135 if (!cbor_is_utf8_string (SvPVX (sv), SvCUR (sv)))
915 ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); 1136 ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
916 1137
917 SvUTF8_on (sv); 1138 SvUTF8_on (sv);
918 } 1139 }
919 1140
942 sv = newRV_noinc (decode_sv (dec)); 1163 sv = newRV_noinc (decode_sv (dec));
943 break; 1164 break;
944 1165
945 case CBOR_TAG_STRINGREF_NAMESPACE: 1166 case CBOR_TAG_STRINGREF_NAMESPACE:
946 { 1167 {
1168 // do not use SAVETMPS/FREETMPS, as these will
1169 // erase mortalised caches, e.g. "shareable"
947 ENTER; SAVETMPS; 1170 ENTER;
948 1171
949 SAVESPTR (dec->stringref); 1172 SAVESPTR (dec->stringref);
950 dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); 1173 dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
951 1174
952 sv = decode_sv (dec); 1175 sv = decode_sv (dec);
953 1176
954 FREETMPS; LEAVE; 1177 LEAVE;
955 } 1178 }
956 break; 1179 break;
957 1180
958 case CBOR_TAG_STRINGREF: 1181 case CBOR_TAG_STRINGREF:
959 { 1182 {
960 if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) 1183 if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
961 ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); 1184 ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
962 1185
963 UV idx = decode_uint (dec); 1186 UV idx = decode_uint (dec);
964 1187
965 if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) 1188 if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref)))
966 ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); 1189 ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");
967 1190
968 sv = newSVsv (AvARRAY (dec->stringref)[idx]); 1191 sv = newSVsv (AvARRAY (dec->stringref)[idx]);
969 } 1192 }
970 break; 1193 break;
972 case CBOR_TAG_VALUE_SHAREABLE: 1195 case CBOR_TAG_VALUE_SHAREABLE:
973 { 1196 {
974 if (ecb_expect_false (!dec->shareable)) 1197 if (ecb_expect_false (!dec->shareable))
975 dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); 1198 dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
976 1199
977 if (dec->cbor.flags & F_ALLOW_CYCLES) 1200 if (ecb_expect_false (dec->cbor.flags & (F_ALLOW_CYCLES | F_ALLOW_WEAK_CYCLES)))
978 { 1201 {
1202 // if cycles are allowed, then we store an AV as value
1203 // while it is being decoded, and gather unresolved
1204 // references in it, to be re4solved after decoding.
1205 int idx, i;
979 sv = newSV (0); 1206 AV *av = newAV ();
980 av_push (dec->shareable, SvREFCNT_inc_NN (sv)); 1207 av_push (dec->shareable, (SV *)av);
1208 idx = AvFILLp (dec->shareable);
981 1209
982 SV *osv = decode_sv (dec); 1210 sv = decode_sv (dec);
983 sv_setsv (sv, osv); 1211
1212 // the AV now contains \undef for all unresolved references,
1213 // so we fix them up here.
1214 for (i = 0; i <= AvFILLp (av); ++i)
1215 SvRV_set (AvARRAY (av)[i], SvREFCNT_inc_NN (SvRV (sv)));
1216
1217 // weaken all recursive references
1218 if (dec->cbor.flags & F_ALLOW_WEAK_CYCLES)
1219 for (i = 0; i <= AvFILLp (av); ++i)
1220 sv_rvweaken (AvARRAY (av)[i]);
1221
1222 // now replace the AV by a reference to the completed value
984 SvREFCNT_dec_NN (osv); 1223 SvREFCNT_dec_NN ((SV *)av);
1224 AvARRAY (dec->shareable)[idx] = SvREFCNT_inc_NN (sv);
985 } 1225 }
986 else 1226 else
987 { 1227 {
988 av_push (dec->shareable, &PL_sv_undef); 1228 av_push (dec->shareable, &PL_sv_undef);
989 int idx = AvFILLp (dec->shareable); 1229 int idx = AvFILLp (dec->shareable);
990 sv = decode_sv (dec); 1230 sv = decode_sv (dec);
991 av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); 1231 AvARRAY (dec->shareable)[idx] = SvREFCNT_inc_NN (sv);
992 } 1232 }
993 } 1233 }
994 break; 1234 break;
995 1235
996 case CBOR_TAG_VALUE_SHAREDREF: 1236 case CBOR_TAG_VALUE_SHAREDREF:
998 if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) 1238 if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
999 ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); 1239 ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
1000 1240
1001 UV idx = decode_uint (dec); 1241 UV idx = decode_uint (dec);
1002 1242
1003 if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) 1243 if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable)))
1004 ERR ("corrupted CBOR data (sharedref index out of bounds)"); 1244 ERR ("corrupted CBOR data (sharedref index out of bounds)");
1005 1245
1006 sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); 1246 sv = AvARRAY (dec->shareable)[idx];
1007 1247
1008 if (sv == &PL_sv_undef) 1248 // reference to cycle, we create a new \undef and use that, and also
1249 // registerr it in the AV for later fixing
1250 if (ecb_expect_false (SvTYPE (sv) == SVt_PVAV))
1251 {
1252 AV *av = (AV *)sv;
1253 sv = newRV_noinc (&PL_sv_undef);
1254 av_push (av, SvREFCNT_inc_NN (sv));
1255 }
1256 else if (ecb_expect_false (sv == &PL_sv_undef)) // not yet decoded, but cycles not allowed
1009 ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); 1257 ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
1258 else // we decoded the object earlier, no cycle
1259 sv = newSVsv (sv);
1010 } 1260 }
1011 break; 1261 break;
1012 1262
1013 case CBOR_TAG_PERL_OBJECT: 1263 case CBOR_TAG_PERL_OBJECT:
1014 { 1264 {
1265 if (dec->cbor.flags & F_FORBID_OBJECTS)
1266 goto filter;
1267
1015 sv = decode_sv (dec); 1268 sv = decode_sv (dec);
1016 1269
1017 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) 1270 if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
1018 ERR ("corrupted CBOR data (non-array perl object)"); 1271 ERR ("corrupted CBOR data (non-array perl object)");
1019 1272
1048 SPAGAIN; 1301 SPAGAIN;
1049 1302
1050 if (SvTRUE (ERRSV)) 1303 if (SvTRUE (ERRSV))
1051 { 1304 {
1052 FREETMPS; LEAVE; 1305 FREETMPS; LEAVE;
1053 ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); 1306 ERR_ERRSV;
1054 } 1307 }
1055 1308
1056 SvREFCNT_dec (sv); 1309 SvREFCNT_dec_NN (sv);
1057 sv = SvREFCNT_inc (POPs); 1310 sv = SvREFCNT_inc (POPs);
1058 1311
1059 PUTBACK; 1312 PUTBACK;
1060 1313
1061 FREETMPS; LEAVE; 1314 FREETMPS; LEAVE;
1062 } 1315 }
1063 break; 1316 break;
1064 1317
1065 default: 1318 default:
1319 filter:
1066 { 1320 {
1321 SV *tag_sv = newSVuv (tag);
1322
1067 sv = decode_sv (dec); 1323 sv = decode_sv (dec);
1068 1324
1069 dSP; 1325 dSP;
1070 ENTER; SAVETMPS; 1326 ENTER; SAVETMPS;
1071 SAVESTACK_POS ();
1072 PUSHMARK (SP); 1327 PUSHMARK (SP);
1073 EXTEND (SP, 2); 1328 EXTEND (SP, 2);
1074 PUSHs (newSVuv (tag)); 1329 PUSHs (tag_sv);
1075 PUSHs (sv); 1330 PUSHs (sv);
1076 1331
1077 PUTBACK; 1332 PUTBACK;
1078 int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); 1333 int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);
1079 SPAGAIN; 1334 SPAGAIN;
1080 1335
1081 if (SvTRUE (ERRSV)) 1336 if (SvTRUE (ERRSV))
1082 { 1337 {
1338 SvREFCNT_dec_NN (tag_sv);
1083 FREETMPS; LEAVE; 1339 FREETMPS; LEAVE;
1084 ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); 1340 ERR_ERRSV;
1085 } 1341 }
1086 1342
1087 if (count) 1343 if (count)
1088 { 1344 {
1345 SvREFCNT_dec_NN (tag_sv);
1089 SvREFCNT_dec (sv); 1346 SvREFCNT_dec_NN (sv);
1090 sv = SvREFCNT_inc (POPs); 1347 sv = SvREFCNT_inc_NN (TOPs);
1348 SP -= count;
1091 } 1349 }
1092 else 1350 else
1093 { 1351 {
1094 AV *av = newAV (); 1352 AV *av = newAV ();
1095 av_push (av, newSVuv (tag)); 1353 av_push (av, tag_sv);
1096 av_push (av, sv); 1354 av_push (av, sv);
1097 1355
1098 HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash 1356 HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
1099 ? cbor_tagged_stash 1357 ? cbor_tagged_stash
1100 : gv_stashpv ("CBOR::XS::Tagged" , 1); 1358 : gv_stashpv ("CBOR::XS::Tagged" , 1);
1229 1487
1230 if (dec.err) 1488 if (dec.err)
1231 { 1489 {
1232 if (dec.shareable) 1490 if (dec.shareable)
1233 { 1491 {
1234 // need to break cyclic links, which whould all be in shareable 1492 // need to break cyclic links, which would all be in shareable
1235 int i; 1493 int i;
1236 SV **svp; 1494 SV **svp;
1237 1495
1238 for (i = av_len (dec.shareable) + 1; i--; ) 1496 for (i = av_len (dec.shareable) + 1; i--; )
1239 if ((svp = av_fetch (dec.shareable, i, 0))) 1497 if ((svp = av_fetch (dec.shareable, i, 0)))
1240 sv_setsv (*svp, &PL_sv_undef); 1498 sv_setsv (*svp, &PL_sv_undef);
1241 } 1499 }
1242 1500
1243 SvREFCNT_dec (sv); 1501 SvREFCNT_dec_NN (sv);
1502
1503 if (dec.err_sv)
1504 sv_2mortal (dec.err_sv);
1505
1244 croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); 1506 croak ("%s, at offset %ld (octet 0x%02x)", dec.err, (long)(dec.cur - (U8 *)data), (int)(uint8_t)*dec.cur);
1245 } 1507 }
1246 1508
1247 sv = sv_2mortal (sv); 1509 sv = sv_2mortal (sv);
1248 1510
1249 return sv; 1511 return sv;
1338 1600
1339 break; 1601 break;
1340 1602
1341 case MAJOR_MAP >> MAJOR_SHIFT: 1603 case MAJOR_MAP >> MAJOR_SHIFT:
1342 len <<= 1; 1604 len <<= 1;
1605 /* FALLTHROUGH */
1343 case MAJOR_ARRAY >> MAJOR_SHIFT: 1606 case MAJOR_ARRAY >> MAJOR_SHIFT:
1344 if (len) 1607 if (len)
1345 { 1608 {
1346 av_push (self->incr_count, newSViv (len + 1)); //TODO: nest 1609 av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
1347 count = len + 1; 1610 count = len + 1;
1392 1655
1393 default_filter = newSVpv ("CBOR::XS::default_filter", 0); 1656 default_filter = newSVpv ("CBOR::XS::default_filter", 0);
1394 1657
1395 sv_cbor = newSVpv ("CBOR", 0); 1658 sv_cbor = newSVpv ("CBOR", 0);
1396 SvREADONLY_on (sv_cbor); 1659 SvREADONLY_on (sv_cbor);
1660
1661 assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1397} 1662}
1398 1663
1399PROTOTYPES: DISABLE 1664PROTOTYPES: DISABLE
1400 1665
1401void CLONE (...) 1666void CLONE (...)
1417 ))); 1682 )));
1418} 1683}
1419 1684
1420void shrink (CBOR *self, int enable = 1) 1685void shrink (CBOR *self, int enable = 1)
1421 ALIAS: 1686 ALIAS:
1422 shrink = F_SHRINK 1687 shrink = F_SHRINK
1423 allow_unknown = F_ALLOW_UNKNOWN 1688 allow_unknown = F_ALLOW_UNKNOWN
1424 allow_sharing = F_ALLOW_SHARING 1689 allow_sharing = F_ALLOW_SHARING
1425 allow_cycles = F_ALLOW_CYCLES 1690 allow_cycles = F_ALLOW_CYCLES
1691 allow_weak_cycles = F_ALLOW_WEAK_CYCLES
1692 forbid_objects = F_FORBID_OBJECTS
1426 pack_strings = F_PACK_STRINGS 1693 pack_strings = F_PACK_STRINGS
1694 text_keys = F_TEXT_KEYS
1427 utf8_strings = F_UTF8_STRINGS 1695 text_strings = F_TEXT_STRINGS
1428 validate_utf8 = F_VALIDATE_UTF8 1696 validate_utf8 = F_VALIDATE_UTF8
1429 PPCODE: 1697 PPCODE:
1430{ 1698{
1431 if (enable) 1699 if (enable)
1432 self->flags |= ix; 1700 self->flags |= ix;
1433 else 1701 else
1436 XPUSHs (ST (0)); 1704 XPUSHs (ST (0));
1437} 1705}
1438 1706
1439void get_shrink (CBOR *self) 1707void get_shrink (CBOR *self)
1440 ALIAS: 1708 ALIAS:
1441 get_shrink = F_SHRINK 1709 get_shrink = F_SHRINK
1442 get_allow_unknown = F_ALLOW_UNKNOWN 1710 get_allow_unknown = F_ALLOW_UNKNOWN
1443 get_allow_sharing = F_ALLOW_SHARING 1711 get_allow_sharing = F_ALLOW_SHARING
1444 get_allow_cycles = F_ALLOW_CYCLES 1712 get_allow_cycles = F_ALLOW_CYCLES
1713 get_allow_weak_cycles = F_ALLOW_WEAK_CYCLES
1714 get_forbid_objects = F_FORBID_OBJECTS
1445 get_pack_strings = F_PACK_STRINGS 1715 get_pack_strings = F_PACK_STRINGS
1716 get_text_keys = F_TEXT_KEYS
1717 get_text_strings = F_TEXT_STRINGS
1446 get_validate_utf8 = F_VALIDATE_UTF8 1718 get_validate_utf8 = F_VALIDATE_UTF8
1447 PPCODE: 1719 PPCODE:
1448 XPUSHs (boolSV (self->flags & ix)); 1720 XPUSHs (boolSV (self->flags & ix));
1449 1721
1450void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) 1722void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1451 PPCODE: 1723 PPCODE:
1580 cbor_init (&cbor); 1852 cbor_init (&cbor);
1581 PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; 1853 PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;
1582 XPUSHs (cborstr); 1854 XPUSHs (cborstr);
1583} 1855}
1584 1856
1857#ifdef __AFL_COMPILER
1858
1859void
1860afl_init ()
1861 CODE:
1862 __AFL_INIT ();
1863
1864int
1865afl_loop (unsigned int count = 10000)
1866 CODE:
1867 RETVAL = __AFL_LOOP (count);
1868 OUTPUT:
1869 RETVAL
1870
1871#endif
1872

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