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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.27 by root, Fri Nov 22 15:28:38 2013 UTC vs.
Revision 1.64 by root, Tue Jun 27 02:03:24 2017 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
		13	#define ECB_NO_THREADS 1
12	#include "ecb.h"	14	#include "ecb.h"
13		15
14	// compatibility with perl <5.18	16	// compatibility with perl <5.18
15	#ifndef HvNAMELEN_get	17	#ifndef HvNAMELEN_get
16	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))	18	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
…		…
19	# define HvNAMELEN(hv) HvNAMELEN_get (hv)	21	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
20	#endif	22	#endif
21	#ifndef HvNAMEUTF8	23	#ifndef HvNAMEUTF8
22	# define HvNAMEUTF8(hv) 0	24	# define HvNAMEUTF8(hv) 0
23	#endif	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	};
24		69
25	// known tags	70	// known tags
26	enum cbor_tag	71	enum cbor_tag
27	{	72	{
28	// inofficial extensions (pending iana registration)	73	// extensions
		74	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
29	CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object	75	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
30	CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object	76	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
31	CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing	77	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
32	CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing	78	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
33	CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref	79	CBOR_TAG_STRINGREF_NAMESPACE = 256, // 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	80	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
36		81
37	// rfc7049	82	// rfc7049
38	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	83	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
39	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	84	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
40	CBOR_TAG_POS_BIGNUM = 2, // byte string	85	CBOR_TAG_POS_BIGNUM = 2, // byte string
41	CBOR_TAG_NEG_BIGNUM = 3, // byte string	86	CBOR_TAG_NEG_BIGNUM = 3, // byte string
42	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	87	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
43	CBOR_TAG_BIGFLOAT = 5, // array	88	CBOR_TAG_BIGFLOAT = 5, // array
44		89
45	CBOR_TAG_CONV_B64U = 21, // base64url, any	90	CBOR_TAG_CONV_B64U = 21, // base64url, any
46	CBOR_TAG_CONV_B64 = 22, // base64, any	91	CBOR_TAG_CONV_B64 = 22, // base64, any
47	CBOR_TAG_CONV_HEX = 23, // base16, any	92	CBOR_TAG_CONV_HEX = 23, // base16, any
48	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	93	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
49		94
50	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	95	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
51	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	96	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
52	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	97	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
53	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	98	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
54	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	99	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
55		100
56	CBOR_TAG_MAGIC = 55799 // self-describe cbor	101	CBOR_TAG_MAGIC = 55799, // self-describe cbor
57	};	102	};
58		103
59	#define F_SHRINK 0x00000001UL	104	#define F_SHRINK 0x00000001UL
60	#define F_ALLOW_UNKNOWN 0x00000002UL	105	#define F_ALLOW_UNKNOWN 0x00000002UL
61	#define F_ALLOW_SHARING 0x00000004UL //TODO	106	#define F_ALLOW_SHARING 0x00000004UL
62	#define F_ALLOW_STRINGREF 0x00000008UL //TODO	107	#define F_ALLOW_CYCLES 0x00000008UL
		108	#define F_FORBID_OBJECTS 0x00000010UL
		109	#define F_PACK_STRINGS 0x00000020UL
		110	#define F_TEXT_KEYS 0x00000040UL
		111	#define F_TEXT_STRINGS 0x00000080UL
		112	#define F_VALIDATE_UTF8 0x00000100UL
63		113
64	#define INIT_SIZE 32 // initial scalar size to be allocated	114	#define INIT_SIZE 32 // initial scalar size to be allocated
65		115
66	#define SB do {	116	#define SB do {
67	#define SE } while (0)	117	#define SE } while (0)
…		…
86	typedef struct {	136	typedef struct {
87	U32 flags;	137	U32 flags;
88	U32 max_depth;	138	U32 max_depth;
89	STRLEN max_size;	139	STRLEN max_size;
90	SV *filter;	140	SV *filter;
		141
		142	// for the incremental parser
		143	STRLEN incr_pos; // the current offset into the text
		144	STRLEN incr_need; // minimum bytes needed to decode
		145	AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef.
91	} CBOR;	146	} CBOR;
92		147
93	ecb_inline void	148	ecb_inline void
94	cbor_init (CBOR *cbor)	149	cbor_init (CBOR *cbor)
95	{	150	{
…		…
99		154
100	ecb_inline void	155	ecb_inline void
101	cbor_free (CBOR *cbor)	156	cbor_free (CBOR *cbor)
102	{	157	{
103	SvREFCNT_dec (cbor->filter);	158	SvREFCNT_dec (cbor->filter);
		159	SvREFCNT_dec (cbor->incr_count);
104	}	160	}
105		161
106	/////////////////////////////////////////////////////////////////////////////	162	/////////////////////////////////////////////////////////////////////////////
107	// utility functions	163	// utility functions
108		164
…		…
134		190
135	// minimum length of a string to be registered for stringref	191	// minimum length of a string to be registered for stringref
136	ecb_inline int	192	ecb_inline int
137	minimum_string_length (UV idx)	193	minimum_string_length (UV idx)
138	{	194	{
139	return idx > 23	195	return idx <= 23 ? 3
140	? idx > 0xffU	196	: idx <= 0xffU ? 4
141	? idx > 0xffffU	197	: idx <= 0xffffU ? 5
142	? idx > 0xffffffffU	198	: idx <= 0xffffffffU ? 7
143	? 7	199	: 11;
144	: 6
145	: 5
146	: 4
147	: 3;
148	}	200	}
149		201
150	/////////////////////////////////////////////////////////////////////////////	202	/////////////////////////////////////////////////////////////////////////////
151	// encoder	203	// encoder
152		204
…		…
165	} enc_t;	217	} enc_t;
166		218
167	ecb_inline void	219	ecb_inline void
168	need (enc_t *enc, STRLEN len)	220	need (enc_t *enc, STRLEN len)
169	{	221	{
170	if (ecb_expect_false (enc->cur + len >= enc->end))	222	if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len))
171	{	223	{
172	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);	224	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
173	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	225	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
174	enc->cur = SvPVX (enc->sv) + cur;	226	enc->cur = SvPVX (enc->sv) + cur;
175	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	227	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
…		…
186	static void	238	static void
187	encode_uint (enc_t *enc, int major, UV len)	239	encode_uint (enc_t *enc, int major, UV len)
188	{	240	{
189	need (enc, 9);	241	need (enc, 9);
190		242
191	if (len < 24)	243	if (ecb_expect_true (len < LENGTH_EXT1))
192	*enc->cur++ = major | len;	244	*enc->cur++ = major | len;
193	else if (len <= 0xff)	245	else if (ecb_expect_true (len <= 0xffU))
194	{	246	{
195	*enc->cur++ = major | 24;	247	*enc->cur++ = major | LENGTH_EXT1;
196	*enc->cur++ = len;	248	*enc->cur++ = len;
197	}	249	}
198	else if (len <= 0xffff)	250	else if (len <= 0xffffU)
199	{	251	{
200	*enc->cur++ = major | 25;	252	*enc->cur++ = major | LENGTH_EXT2;
201	*enc->cur++ = len >> 8;	253	*enc->cur++ = len >> 8;
202	*enc->cur++ = len;	254	*enc->cur++ = len;
203	}	255	}
204	else if (len <= 0xffffffff)	256	else if (len <= 0xffffffffU)
205	{	257	{
206	*enc->cur++ = major | 26;	258	*enc->cur++ = major | LENGTH_EXT4;
207	*enc->cur++ = len >> 24;	259	*enc->cur++ = len >> 24;
208	*enc->cur++ = len >> 16;	260	*enc->cur++ = len >> 16;
209	*enc->cur++ = len >> 8;	261	*enc->cur++ = len >> 8;
210	*enc->cur++ = len;	262	*enc->cur++ = len;
211	}	263	}
212	else	264	else
213	{	265	{
214	*enc->cur++ = major | 27;	266	*enc->cur++ = major | LENGTH_EXT8;
215	*enc->cur++ = len >> 56;	267	*enc->cur++ = len >> 56;
216	*enc->cur++ = len >> 48;	268	*enc->cur++ = len >> 48;
217	*enc->cur++ = len >> 40;	269	*enc->cur++ = len >> 40;
218	*enc->cur++ = len >> 32;	270	*enc->cur++ = len >> 32;
219	*enc->cur++ = len >> 24;	271	*enc->cur++ = len >> 24;
…		…
224	}	276	}
225		277
226	ecb_inline void	278	ecb_inline void
227	encode_tag (enc_t *enc, UV tag)	279	encode_tag (enc_t *enc, UV tag)
228	{	280	{
229	encode_uint (enc, 0xc0, tag);	281	encode_uint (enc, MAJOR_TAG, tag);
230	}	282	}
231		283
232	static void	284	// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded
		285	ecb_noinline static void
233	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)	286	encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len)
234	{	287	{
		288	STRLEN ulen = len;
		289	U8 *p, *pend = (U8 *)str + len;
		290
		291	for (p = (U8 *)str; p < pend; ++p)
		292	ulen += *p >> 7; // count set high bits
		293
		294	encode_uint (enc, MAJOR_TEXT, ulen);
		295
		296	need (enc, ulen);
		297	for (p = (U8 *)str; p < pend; ++p)
		298	if (*p < 0x80)
		299	*enc->cur++ = *p;
		300	else
		301	{
		302	*enc->cur++ = 0xc0 + (*p >> 6);
		303	*enc->cur++ = 0x80 + (*p & 63);
		304	}
		305	}
		306
		307	ecb_inline void
		308	encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
		309	{
		310	if (ecb_expect_false (upgrade_utf8))
		311	if (!utf8)
		312	{
		313	encode_str_utf8 (enc, utf8, str, len);
		314	return;
		315	}
		316
		317	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
		318	need (enc, len);
		319	memcpy (enc->cur, str, len);
		320	enc->cur += len;
		321	}
		322
		323	ecb_inline void
		324	encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
		325	{
235	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_STRINGREF))	326	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
236	{	327	{
237	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);	328	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
238		329
239	if (SvOK (*svp))	330	if (SvOK (*svp))
240	{	331	{
241	// already registered, use stringref	332	// already registered, use stringref
242	encode_tag (enc, CBOR_TAG_STRINGREF);	333	encode_tag (enc, CBOR_TAG_STRINGREF);
243	encode_uint (enc, 0x00, SvUV (*svp));	334	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
244	return;	335	return;
245	}	336	}
246	else if (len >= minimum_string_length (enc->stringref_idx))	337	else if (len >= minimum_string_length (enc->stringref_idx))
247	{	338	{
248	// register only	339	// register only
249	sv_setuv (*svp, enc->stringref_idx);	340	sv_setuv (*svp, enc->stringref_idx);
250	++enc->stringref_idx;	341	++enc->stringref_idx;
251	}	342	}
252	}	343	}
253		344
254	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	345	encode_str (enc, upgrade_utf8, utf8, str, len);
255	need (enc, len);
256	memcpy (enc->cur, str, len);
257	enc->cur += len;
258	}	346	}
259		347
260	static void encode_sv (enc_t *enc, SV *sv);	348	static void encode_sv (enc_t *enc, SV *sv);
261		349
262	static void	350	static void
…		…
267	if (enc->depth >= enc->cbor.max_depth)	355	if (enc->depth >= enc->cbor.max_depth)
268	croak (ERR_NESTING_EXCEEDED);	356	croak (ERR_NESTING_EXCEEDED);
269		357
270	++enc->depth;	358	++enc->depth;
271		359
272	encode_uint (enc, 0x80, len + 1);	360	encode_uint (enc, MAJOR_ARRAY, len + 1);
273		361
		362	if (ecb_expect_false (SvMAGICAL (av)))
274	for (i = 0; i <= len; ++i)	363	for (i = 0; i <= len; ++i)
275	{	364	{
276	SV **svp = av_fetch (av, i, 0);	365	SV **svp = av_fetch (av, i, 0);
277	encode_sv (enc, svp ? *svp : &PL_sv_undef);	366	encode_sv (enc, svp ? *svp : &PL_sv_undef);
278	}	367	}
		368	else
		369	for (i = 0; i <= len; ++i)
		370	{
		371	SV *sv = AvARRAY (av)[i];
		372	encode_sv (enc, sv ? sv : &PL_sv_undef);
		373	}
279		374
280	--enc->depth;	375	--enc->depth;
281	}	376	}
282		377
283	static void	378	static void
…		…
291	++enc->depth;	386	++enc->depth;
292		387
293	int pairs = hv_iterinit (hv);	388	int pairs = hv_iterinit (hv);
294	int mg = SvMAGICAL (hv);	389	int mg = SvMAGICAL (hv);
295		390
296	if (mg)	391	if (ecb_expect_false (mg))
297	encode_ch (enc, 0xa0 | 31);	392	encode_ch (enc, MAJOR_MAP | MINOR_INDEF);
298	else	393	else
299	encode_uint (enc, 0xa0, pairs);	394	encode_uint (enc, MAJOR_MAP, pairs);
300		395
301	while ((he = hv_iternext (hv)))	396	while ((he = hv_iternext (hv)))
302	{	397	{
303	if (HeKLEN (he) == HEf_SVKEY)	398	if (HeKLEN (he) == HEf_SVKEY)
304	encode_sv (enc, HeSVKEY (he));	399	encode_sv (enc, HeSVKEY (he));
305	else	400	else
306	encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));	401	encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he));
307		402
308	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));	403	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
309	}	404	}
310		405
311	if (mg)	406	if (ecb_expect_false (mg))
312	encode_ch (enc, 0xe0 | 31);	407	encode_ch (enc, MAJOR_MISC | MINOR_INDEF);
313		408
314	--enc->depth;	409	--enc->depth;
315	}	410	}
316		411
317	// encode objects, arrays and special \0=false and \1=true values.	412	// encode objects, arrays and special \0=false and \1=true values.
318	static void	413	static void
319	encode_rv (enc_t *enc, SV *sv)	414	encode_rv (enc_t *enc, SV *sv)
320	{	415	{
321	SvGETMAGIC (sv);	416	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		417
345	svtype svt = SvTYPE (sv);	418	svtype svt = SvTYPE (sv);
346		419
347	if (ecb_expect_false (SvOBJECT (sv)))	420	if (ecb_expect_false (SvOBJECT (sv)))
348	{	421	{
…		…
355	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	428	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
356	? cbor_tagged_stash	429	? cbor_tagged_stash
357	: gv_stashpv ("CBOR::XS::Tagged" , 1);	430	: gv_stashpv ("CBOR::XS::Tagged" , 1);
358		431
359	HV *stash = SvSTASH (sv);	432	HV *stash = SvSTASH (sv);
360	GV *method;
361		433
362	if (stash == boolean_stash)	434	if (stash == boolean_stash)
363	encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20);	435	{
		436	encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE);
		437	return;
		438	}
364	else if (stash == error_stash)	439	else if (stash == error_stash)
365	encode_ch (enc, 0xe0 | 23);	440	{
		441	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
		442	return;
		443	}
366	else if (stash == tagged_stash)	444	else if (stash == tagged_stash)
367	{	445	{
368	if (svt != SVt_PVAV)	446	if (svt != SVt_PVAV)
369	croak ("encountered CBOR::XS::Tagged object that isn't an array");	447	croak ("encountered CBOR::XS::Tagged object that isn't an array");
370		448
371	encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));	449	encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
372	encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));	450	encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));
		451
		452	return;
		453	}
		454	}
		455
		456	if (ecb_expect_false (SvREFCNT (sv) > 1)
		457	&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
		458	{
		459	if (ecb_expect_false (!enc->shareable))
		460	enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
		461
		462	SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
		463
		464	if (SvOK (*svp))
373	}	465	{
		466	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
		467	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		468	return;
		469	}
		470	else
		471	{
		472	sv_setuv (*svp, enc->shareable_idx);
		473	++enc->shareable_idx;
		474	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
		475	}
		476	}
		477
		478	if (ecb_expect_false (SvOBJECT (sv)))
		479	{
		480	HV *stash = SvSTASH (sv);
		481	GV *method;
		482
		483	if (enc->cbor.flags & F_FORBID_OBJECTS)
		484	croak ("encountered object '%s', but forbid_objects is enabled",
		485	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
374	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	486	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
375	{	487	{
376	dSP;	488	dSP;
377		489
378	ENTER; SAVETMPS; PUSHMARK (SP);	490	ENTER; SAVETMPS;
		491	PUSHMARK (SP);
379	// we re-bless the reference to get overload and other niceties right	492	// we re-bless the reference to get overload and other niceties right
380	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	493	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
381		494
382	PUTBACK;	495	PUTBACK;
383	// G_SCALAR ensures that return value is 1	496	// G_SCALAR ensures that return value is 1
…		…
396	}	509	}
397	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	510	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
398	{	511	{
399	dSP;	512	dSP;
400		513
401	ENTER; SAVETMPS; PUSHMARK (SP);	514	ENTER; SAVETMPS;
		515	SAVESTACK_POS ();
		516	PUSHMARK (SP);
402	EXTEND (SP, 2);	517	EXTEND (SP, 2);
403	// we re-bless the reference to get overload and other niceties right	518	// we re-bless the reference to get overload and other niceties right
404	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	519	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
405	PUSHs (sv_cbor);	520	PUSHs (sv_cbor);
406		521
…		…
411	// catch this surprisingly common error	526	// catch this surprisingly common error
412	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	527	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));	528	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
414		529
415	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	530	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
416	encode_uint (enc, 0x80, count + 1);	531	encode_uint (enc, MAJOR_ARRAY, count + 1);
417	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	532	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
418		533
419	while (count)	534	while (count)
420	encode_sv (enc, SP[1 - count--]);	535	encode_sv (enc, SP[1 - count--]);
421		536
422	PUTBACK;	537	PUTBACK;
…		…
443	{	558	{
444	double nv = SvNVX (sv);	559	double nv = SvNVX (sv);
445		560
446	need (enc, 9);	561	need (enc, 9);
447		562
448	if (ecb_expect_false (nv == (U32)nv))	563	if (ecb_expect_false (nv == (NV)(U32)nv))
449	encode_uint (enc, 0x00, (U32)nv);	564	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
450	//TODO: maybe I32?	565	//TODO: maybe I32?
451	else if (ecb_expect_false (nv == (float)nv))	566	else if (ecb_expect_false (nv == (float)nv))
452	{	567	{
		568	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
		569
453	uint32_t fp = ecb_float_to_binary32 (nv);	570	uint32_t fp = ecb_float_to_binary32 (nv);
454
455	*enc->cur++ = 0xe0 | 26;
456		571
457	if (!ecb_big_endian ())	572	if (!ecb_big_endian ())
458	fp = ecb_bswap32 (fp);	573	fp = ecb_bswap32 (fp);
459		574
460	memcpy (enc->cur, &fp, 4);	575	memcpy (enc->cur, &fp, 4);
461	enc->cur += 4;	576	enc->cur += 4;
462	}	577	}
463	else	578	else
464	{	579	{
		580	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
		581
465	uint64_t fp = ecb_double_to_binary64 (nv);	582	uint64_t fp = ecb_double_to_binary64 (nv);
466
467	*enc->cur++ = 0xe0 | 27;
468		583
469	if (!ecb_big_endian ())	584	if (!ecb_big_endian ())
470	fp = ecb_bswap64 (fp);	585	fp = ecb_bswap64 (fp);
471		586
472	memcpy (enc->cur, &fp, 8);	587	memcpy (enc->cur, &fp, 8);
…		…
481		596
482	if (SvPOKp (sv))	597	if (SvPOKp (sv))
483	{	598	{
484	STRLEN len;	599	STRLEN len;
485	char *str = SvPV (sv, len);	600	char *str = SvPV (sv, len);
486	encode_str (enc, SvUTF8 (sv), str, len);	601	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
487	}	602	}
488	else if (SvNOKp (sv))	603	else if (SvNOKp (sv))
489	encode_nv (enc, sv);	604	encode_nv (enc, sv);
490	else if (SvIOKp (sv))	605	else if (SvIOKp (sv))
491	{	606	{
492	if (SvIsUV (sv))	607	if (SvIsUV (sv))
493	encode_uint (enc, 0x00, SvUVX (sv));	608	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
494	else if (SvIVX (sv) >= 0)	609	else if (SvIVX (sv) >= 0)
495	encode_uint (enc, 0x00, SvIVX (sv));	610	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
496	else	611	else
497	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	612	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
498	}	613	}
499	else if (SvROK (sv))	614	else if (SvROK (sv))
500	encode_rv (enc, SvRV (sv));	615	encode_rv (enc, SvRV (sv));
501	else if (!SvOK (sv))	616	else if (!SvOK (sv))
502	encode_ch (enc, 0xe0 | 22);	617	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
503	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	618	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
504	encode_ch (enc, 0xe0 | 23);	619	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
505	else	620	else
506	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	621	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
507	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	622	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
508	}	623	}
509		624
510	static SV *	625	static SV *
511	encode_cbor (SV *scalar, CBOR *cbor)	626	encode_cbor (SV *scalar, CBOR *cbor)
512	{	627	{
513	enc_t enc = { };	628	enc_t enc = { 0 };
514		629
515	enc.cbor = *cbor;	630	enc.cbor = *cbor;
516	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	631	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
517	enc.cur = SvPVX (enc.sv);	632	enc.cur = SvPVX (enc.sv);
518	enc.end = SvEND (enc.sv);	633	enc.end = SvEND (enc.sv);
519		634
520	SvPOK_only (enc.sv);	635	SvPOK_only (enc.sv);
521		636
522	if (cbor->flags & F_ALLOW_STRINGREF)	637	if (cbor->flags & F_PACK_STRINGS)
523	{	638	{
524	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	639	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
525	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());	640	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
526	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());	641	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
527	}	642	}
…		…
550	U32 depth; // recursion depth	665	U32 depth; // recursion depth
551	U32 maxdepth; // recursion depth limit	666	U32 maxdepth; // recursion depth limit
552	AV *shareable;	667	AV *shareable;
553	AV *stringref;	668	AV *stringref;
554	SV *decode_tagged;	669	SV *decode_tagged;
		670	SV *err_sv; // optional sv for error, needs to be freed
555	} dec_t;	671	} dec_t;
556		672
557	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	673	// set dec->err to ERRSV
		674	ecb_cold static void
		675	err_errsv (dec_t *dec)
		676	{
		677	if (!dec->err)
		678	{
		679	dec->err_sv = newSVsv (ERRSV);
558		680
559	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	681	// chop off the trailing \n
		682	SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1);
		683	*SvEND (dec->err_sv) = 0;
560		684
		685	dec->err = SvPVutf8_nolen (dec->err_sv);
		686	}
		687	}
		688
		689	// the following functions are used to reduce code size and help the compiler to optimise
		690	ecb_cold static void
		691	err_set (dec_t *dec, const char *reason)
		692	{
		693	if (!dec->err)
		694	dec->err = reason;
		695	}
		696
		697	ecb_cold static void
		698	err_unexpected_end (dec_t *dec)
		699	{
		700	err_set (dec, "unexpected end of CBOR data");
		701	}
		702
		703	#define ERR_DO(do) SB do; goto fail; SE
		704	#define ERR(reason) ERR_DO (err_set (dec, reason))
		705	#define ERR_ERRSV ERR_DO (err_errsv (dec))
		706
		707	#define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec))
		708
561	#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED)	709	#define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED)
562	#define DEC_DEC_DEPTH --dec->depth	710	#define DEC_DEC_DEPTH --dec->depth
563		711
564	static UV	712	static UV
565	decode_uint (dec_t *dec)	713	decode_uint (dec_t *dec)
566	{	714	{
567	switch (*dec->cur & 31)	715	U8 m = *dec->cur & MINOR_MASK;
568	{	716	++dec->cur;
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		717
574	case 24:	718	if (ecb_expect_true (m < LENGTH_EXT1))
		719	return m;
		720	else if (ecb_expect_true (m == LENGTH_EXT1))
		721	{
575	WANT (2);	722	WANT (1);
576	dec->cur += 2;	723	dec->cur += 1;
577	return dec->cur[-1];	724	return dec->cur[-1];
578		725	}
579	case 25:	726	else if (ecb_expect_true (m == LENGTH_EXT2))
		727	{
580	WANT (3);	728	WANT (2);
581	dec->cur += 3;	729	dec->cur += 2;
582	return (((UV)dec->cur[-2]) << 8)	730	return (((UV)dec->cur[-2]) << 8)
583	| ((UV)dec->cur[-1]);	731	| ((UV)dec->cur[-1]);
584		732	}
585	case 26:	733	else if (ecb_expect_true (m == LENGTH_EXT4))
		734	{
586	WANT (5);	735	WANT (4);
587	dec->cur += 5;	736	dec->cur += 4;
588	return (((UV)dec->cur[-4]) << 24)	737	return (((UV)dec->cur[-4]) << 24)
589	| (((UV)dec->cur[-3]) << 16)	738	| (((UV)dec->cur[-3]) << 16)
590	| (((UV)dec->cur[-2]) << 8)	739	| (((UV)dec->cur[-2]) << 8)
591	| ((UV)dec->cur[-1]);	740	| ((UV)dec->cur[-1]);
592		741	}
593	case 27:	742	else if (ecb_expect_true (m == LENGTH_EXT8))
		743	{
594	WANT (9);	744	WANT (8);
595	dec->cur += 9;	745	dec->cur += 8;
		746
		747	return
		748	#if UVSIZE < 8
		749	0
		750	#else
596	return (((UV)dec->cur[-8]) << 56)	751	(((UV)dec->cur[-8]) << 56)
597	| (((UV)dec->cur[-7]) << 48)	752	| (((UV)dec->cur[-7]) << 48)
598	| (((UV)dec->cur[-6]) << 40)	753	| (((UV)dec->cur[-6]) << 40)
599	| (((UV)dec->cur[-5]) << 32)	754	| (((UV)dec->cur[-5]) << 32)
		755	#endif
600	| (((UV)dec->cur[-4]) << 24)	756	| (((UV)dec->cur[-4]) << 24)
601	| (((UV)dec->cur[-3]) << 16)	757	| (((UV)dec->cur[-3]) << 16)
602	| (((UV)dec->cur[-2]) << 8)	758	| (((UV)dec->cur[-2]) << 8)
603	| ((UV)dec->cur[-1]);	759	| ((UV)dec->cur[-1]);
604		760	}
605	default:	761	else
606	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	762	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
607	}
608		763
609	fail:	764	fail:
610	return 0;	765	return 0;
611	}	766	}
612		767
…		…
617	{	772	{
618	AV *av = newAV ();	773	AV *av = newAV ();
619		774
620	DEC_INC_DEPTH;	775	DEC_INC_DEPTH;
621		776
622	if ((*dec->cur & 31) == 31)	777	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
623	{	778	{
624	++dec->cur;	779	++dec->cur;
625		780
626	for (;;)	781	for (;;)
627	{	782	{
628	WANT (1);	783	WANT (1);
629		784
630	if (*dec->cur == (0xe0 | 31))	785	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
631	{	786	{
632	++dec->cur;	787	++dec->cur;
633	break;	788	break;
634	}	789	}
635		790
636	av_push (av, decode_sv (dec));	791	av_push (av, decode_sv (dec));
637	}	792	}
638	}	793	}
639	else	794	else
640	{	795	{
641	int i, len = decode_uint (dec);	796	UV i, len = decode_uint (dec);
642		797
		798	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
643	av_fill (av, len - 1);	799	av_fill (av, len - 1);
644		800
645	for (i = 0; i < len; ++i)	801	for (i = 0; i < len; ++i)
646	AvARRAY (av)[i] = decode_sv (dec);	802	AvARRAY (av)[i] = decode_sv (dec);
647	}	803	}
648		804
649	DEC_DEC_DEPTH;	805	DEC_DEC_DEPTH;
650	return newRV_noinc ((SV *)av);	806	return newRV_noinc ((SV *)av);
651		807
652	fail:	808	fail:
653	SvREFCNT_dec (av);	809	SvREFCNT_dec_NN (av);
654	DEC_DEC_DEPTH;	810	DEC_DEC_DEPTH;
655	return &PL_sv_undef;	811	return &PL_sv_undef;
656	}	812	}
657		813
658	static void	814	static void
…		…
660	{	816	{
661	// for speed reasons, we specialcase single-string	817	// for speed reasons, we specialcase single-string
662	// byte or utf-8 strings as keys, but only when !stringref	818	// byte or utf-8 strings as keys, but only when !stringref
663		819
664	if (ecb_expect_true (!dec->stringref))	820	if (ecb_expect_true (!dec->stringref))
665	if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27)	821	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
666	{	822	{
667	I32 len = decode_uint (dec);	823	STRLEN len = decode_uint (dec);
668	char *key = (char *)dec->cur;	824	char *key = (char *)dec->cur;
669		825
		826	WANT (len);
670	dec->cur += len;	827	dec->cur += len;
671		828
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);	829	hv_store (hv, key, len, decode_sv (dec), 0);
676		830
677	return;	831	return;
678	}	832	}
679	else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27)	833	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
680	{	834	{
681	I32 len = decode_uint (dec);	835	STRLEN len = decode_uint (dec);
682	char *key = (char *)dec->cur;	836	char *key = (char *)dec->cur;
683		837
		838	WANT (len);
684	dec->cur += len;	839	dec->cur += len;
685		840
686	if (ecb_expect_false (dec->stringref))	841	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
687	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	842	if (!is_utf8_string (key, len))
		843	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
688		844
689	hv_store (hv, key, -len, decode_sv (dec), 0);	845	hv_store (hv, key, -len, decode_sv (dec), 0);
690		846
691	return;	847	return;
692	}	848	}
693		849
694	SV *k = decode_sv (dec);	850	SV *k = decode_sv (dec);
695	SV *v = decode_sv (dec);	851	SV *v = decode_sv (dec);
696		852
		853	// we leak memory if uncaught exceptions are thrown by random magical
		854	// methods, and this is hopefully the only place where it can happen,
		855	// so if there is a chance of an exception, take the very slow path.
		856	// since catching exceptions is "undocumented/internal/forbidden" by
		857	// the new p5p powers, we need to call out to a perl function :/
		858	if (ecb_expect_false (SvAMAGIC (k)))
		859	{
		860	dSP;
		861
		862	ENTER; SAVETMPS;
		863	PUSHMARK (SP);
		864	EXTEND (SP, 3);
		865	PUSHs (sv_2mortal (newRV_inc ((SV *)hv)));
		866	PUSHs (sv_2mortal (k));
		867	PUSHs (sv_2mortal (v));
		868
		869	PUTBACK;
		870	call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL);
		871	SPAGAIN;
		872
		873	FREETMPS; LEAVE;
		874
		875	if (SvTRUE (ERRSV))
		876	ERR_ERRSV;
		877
		878	return;
		879	}
		880
697	hv_store_ent (hv, k, v, 0);	881	hv_store_ent (hv, k, v, 0);
698	SvREFCNT_dec (k);	882	SvREFCNT_dec_NN (k);
		883
		884	fail:
		885	;
699	}	886	}
700		887
701	static SV *	888	static SV *
702	decode_hv (dec_t *dec)	889	decode_hv (dec_t *dec)
703	{	890	{
704	HV *hv = newHV ();	891	HV *hv = newHV ();
705		892
706	DEC_INC_DEPTH;	893	DEC_INC_DEPTH;
707		894
708	if ((*dec->cur & 31) == 31)	895	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
709	{	896	{
710	++dec->cur;	897	++dec->cur;
711		898
712	for (;;)	899	for (;;)
713	{	900	{
714	WANT (1);	901	WANT (1);
715		902
716	if (*dec->cur == (0xe0 | 31))	903	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
717	{	904	{
718	++dec->cur;	905	++dec->cur;
719	break;	906	break;
720	}	907	}
721		908
722	decode_he (dec, hv);	909	decode_he (dec, hv);
723	}	910	}
724	}	911	}
725	else	912	else
726	{	913	{
727	int pairs = decode_uint (dec);	914	UV pairs = decode_uint (dec);
		915
		916	WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes
728		917
729	while (pairs--)	918	while (pairs--)
730	decode_he (dec, hv);	919	decode_he (dec, hv);
731	}	920	}
732		921
733	DEC_DEC_DEPTH;	922	DEC_DEC_DEPTH;
734	return newRV_noinc ((SV *)hv);	923	return newRV_noinc ((SV *)hv);
735		924
736	fail:	925	fail:
737	SvREFCNT_dec (hv);	926	SvREFCNT_dec_NN (hv);
738	DEC_DEC_DEPTH;	927	DEC_DEC_DEPTH;
739	return &PL_sv_undef;	928	return &PL_sv_undef;
740	}	929	}
741		930
742	static SV *	931	static SV *
743	decode_str (dec_t *dec, int utf8)	932	decode_str (dec_t *dec, int utf8)
744	{	933	{
745	SV *sv = 0;	934	SV *sv = 0;
746		935
747	if ((*dec->cur & 31) == 31)	936	if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF))
748	{	937	{
		938	// indefinite length strings
749	++dec->cur;	939	++dec->cur;
750		940
		941	U8 major = *dec->cur & MAJOR_MISC;
		942
751	sv = newSVpvn ("", 0);	943	sv = newSVpvn ("", 0);
752		944
753	// not very fast, and certainly not robust against illegal input
754	for (;;)	945	for (;;)
755	{	946	{
756	WANT (1);	947	WANT (1);
757		948
758	if (*dec->cur == (0xe0 | 31))	949	if ((*dec->cur - major) > LENGTH_EXT8)
		950	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
759	{	951	{
760	++dec->cur;	952	++dec->cur;
761	break;	953	break;
762	}	954	}
		955	else
		956	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
763		957
764	sv_catsv (sv, decode_sv (dec));	958	STRLEN len = decode_uint (dec);
		959
		960	WANT (len);
		961	sv_catpvn (sv, dec->cur, len);
		962	dec->cur += len;
765	}	963	}
766	}	964	}
767	else	965	else
768	{	966	{
769	STRLEN len = decode_uint (dec);	967	STRLEN len = decode_uint (dec);
…		…
776	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))	974	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
777	av_push (dec->stringref, SvREFCNT_inc_NN (sv));	975	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
778	}	976	}
779		977
780	if (utf8)	978	if (utf8)
		979	{
		980	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		981	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		982	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		983
781	SvUTF8_on (sv);	984	SvUTF8_on (sv);
		985	}
782		986
783	return sv;	987	return sv;
784		988
785	fail:	989	fail:
786	SvREFCNT_dec (sv);	990	SvREFCNT_dec (sv);
…		…
805	sv = newRV_noinc (decode_sv (dec));	1009	sv = newRV_noinc (decode_sv (dec));
806	break;	1010	break;
807		1011
808	case CBOR_TAG_STRINGREF_NAMESPACE:	1012	case CBOR_TAG_STRINGREF_NAMESPACE:
809	{	1013	{
		1014	// do not use SAVETMPS/FREETMPS, as these will
		1015	// erase mortalised caches, e.g. "shareable"
810	ENTER; SAVETMPS;	1016	ENTER;
811		1017
812	SAVESPTR (dec->stringref);	1018	SAVESPTR (dec->stringref);
813	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());	1019	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
814		1020
815	sv = decode_sv (dec);	1021	sv = decode_sv (dec);
816		1022
817	FREETMPS; LEAVE;	1023	LEAVE;
818	}	1024	}
819	break;	1025	break;
820		1026
821	case CBOR_TAG_STRINGREF:	1027	case CBOR_TAG_STRINGREF:
822	{	1028	{
823	if ((*dec->cur >> 5) != 0)	1029	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
824	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	1030	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
825		1031
826	UV idx = decode_uint (dec);	1032	UV idx = decode_uint (dec);
827		1033
828	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))	1034	if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref)))
829	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");	1035	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");
830		1036
831	sv = newSVsv (AvARRAY (dec->stringref)[idx]);	1037	sv = newSVsv (AvARRAY (dec->stringref)[idx]);
832	}	1038	}
833	break;	1039	break;
…		…
835	case CBOR_TAG_VALUE_SHAREABLE:	1041	case CBOR_TAG_VALUE_SHAREABLE:
836	{	1042	{
837	if (ecb_expect_false (!dec->shareable))	1043	if (ecb_expect_false (!dec->shareable))
838	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());	1044	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
839		1045
		1046	if (dec->cbor.flags & F_ALLOW_CYCLES)
		1047	{
840	sv = newSV (0);	1048	sv = newSV (0);
841	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	1049	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
842		1050
843	SV *osv = decode_sv (dec);	1051	SV *osv = decode_sv (dec);
844	sv_setsv (sv, osv);	1052	sv_setsv (sv, osv);
845	SvREFCNT_dec_NN (osv);	1053	SvREFCNT_dec_NN (osv);
		1054	}
		1055	else
		1056	{
		1057	av_push (dec->shareable, &PL_sv_undef);
		1058	int idx = AvFILLp (dec->shareable);
		1059	sv = decode_sv (dec);
		1060	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		1061	}
846	}	1062	}
847	break;	1063	break;
848		1064
849	case CBOR_TAG_VALUE_SHAREDREF:	1065	case CBOR_TAG_VALUE_SHAREDREF:
850	{	1066	{
851	if ((*dec->cur >> 5) != 0)	1067	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
852	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	1068	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
853		1069
854	UV idx = decode_uint (dec);	1070	UV idx = decode_uint (dec);
855		1071
856	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))	1072	if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable)))
857	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1073	ERR ("corrupted CBOR data (sharedref index out of bounds)");
858		1074
859	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	1075	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1076
		1077	if (sv == &PL_sv_undef)
		1078	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
860	}	1079	}
861	break;	1080	break;
862		1081
863	case CBOR_TAG_PERL_OBJECT:	1082	case CBOR_TAG_PERL_OBJECT:
864	{	1083	{
		1084	if (dec->cbor.flags & F_FORBID_OBJECTS)
		1085	goto filter;
		1086
865	sv = decode_sv (dec);	1087	sv = decode_sv (dec);
866		1088
867	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1089	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
868	ERR ("corrupted CBOR data (non-array perl object)");	1090	ERR ("corrupted CBOR data (non-array perl object)");
869		1091
…		…
879	if (!method)	1101	if (!method)
880	ERR ("cannot decode perl-object (package does not have a THAW method)");	1102	ERR ("cannot decode perl-object (package does not have a THAW method)");
881		1103
882	dSP;	1104	dSP;
883		1105
884	ENTER; SAVETMPS; PUSHMARK (SP);	1106	ENTER; SAVETMPS;
		1107	PUSHMARK (SP);
885	EXTEND (SP, len + 1);	1108	EXTEND (SP, len + 1);
886	// we re-bless the reference to get overload and other niceties right	1109	// we re-bless the reference to get overload and other niceties right
887	PUSHs (*av_fetch (av, 0, 1));	1110	PUSHs (*av_fetch (av, 0, 1));
888	PUSHs (sv_cbor);	1111	PUSHs (sv_cbor);
889		1112
…		…
897	SPAGAIN;	1120	SPAGAIN;
898		1121
899	if (SvTRUE (ERRSV))	1122	if (SvTRUE (ERRSV))
900	{	1123	{
901	FREETMPS; LEAVE;	1124	FREETMPS; LEAVE;
902	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1125	ERR_ERRSV;
903	}	1126	}
904		1127
905	SvREFCNT_dec (sv);	1128	SvREFCNT_dec_NN (sv);
906	sv = SvREFCNT_inc (POPs);	1129	sv = SvREFCNT_inc (POPs);
907		1130
908	PUTBACK;	1131	PUTBACK;
909		1132
910	FREETMPS; LEAVE;	1133	FREETMPS; LEAVE;
911	}	1134	}
912	break;	1135	break;
913		1136
914	default:	1137	default:
		1138	filter:
915	{	1139	{
		1140	SV *tag_sv = newSVuv (tag);
		1141
916	sv = decode_sv (dec);	1142	sv = decode_sv (dec);
917		1143
918	dSP;	1144	dSP;
919	ENTER; SAVETMPS; PUSHMARK (SP);	1145	ENTER; SAVETMPS;
		1146	SAVESTACK_POS ();
		1147	PUSHMARK (SP);
920	EXTEND (SP, 2);	1148	EXTEND (SP, 2);
921	PUSHs (newSVuv (tag));	1149	PUSHs (tag_sv);
922	PUSHs (sv);	1150	PUSHs (sv);
923		1151
924	PUTBACK;	1152	PUTBACK;
925	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);	1153	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);
926	SPAGAIN;	1154	SPAGAIN;
927		1155
928	if (SvTRUE (ERRSV))	1156	if (SvTRUE (ERRSV))
929	{	1157	{
		1158	SvREFCNT_dec_NN (tag_sv);
930	FREETMPS; LEAVE;	1159	FREETMPS; LEAVE;
931	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1160	ERR_ERRSV;
932	}	1161	}
933		1162
934	if (count)	1163	if (count)
935	{	1164	{
		1165	SvREFCNT_dec_NN (tag_sv);
936	SvREFCNT_dec (sv);	1166	SvREFCNT_dec_NN (sv);
937	sv = SvREFCNT_inc (POPs);	1167	sv = SvREFCNT_inc_NN (POPs);
938	}	1168	}
939	else	1169	else
940	{	1170	{
941	AV *av = newAV ();	1171	AV *av = newAV ();
942	av_push (av, newSVuv (tag));	1172	av_push (av, tag_sv);
943	av_push (av, sv);	1173	av_push (av, sv);
944		1174
945	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1175	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
946	? cbor_tagged_stash	1176	? cbor_tagged_stash
947	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1177	: gv_stashpv ("CBOR::XS::Tagged" , 1);
…		…
965	static SV *	1195	static SV *
966	decode_sv (dec_t *dec)	1196	decode_sv (dec_t *dec)
967	{	1197	{
968	WANT (1);	1198	WANT (1);
969		1199
970	switch (*dec->cur >> 5)	1200	switch (*dec->cur >> MAJOR_SHIFT)
971	{	1201	{
972	case 0: // unsigned int	1202	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
973	return newSVuv (decode_uint (dec));	1203	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
974	case 1: // negative int	1204	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
975	return newSViv (-1 - (IV)decode_uint (dec));	1205	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
976	case 2: // octet string	1206	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
977	return decode_str (dec, 0);	1207	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
978	case 3: // utf-8 string	1208	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
979	return decode_str (dec, 1);	1209
980	case 4: // array	1210	case MAJOR_MISC >> MAJOR_SHIFT:
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)	1211	switch (*dec->cur++ & MINOR_MASK)
988	{	1212	{
989	case 20:	1213	case SIMPLE_FALSE:
990	#if CBOR_SLOW	1214	#if CBOR_SLOW
991	types_false = get_bool ("Types::Serialiser::false");	1215	types_false = get_bool ("Types::Serialiser::false");
992	#endif	1216	#endif
993	return newSVsv (types_false);	1217	return newSVsv (types_false);
994	case 21:	1218	case SIMPLE_TRUE:
995	#if CBOR_SLOW	1219	#if CBOR_SLOW
996	types_true = get_bool ("Types::Serialiser::true");	1220	types_true = get_bool ("Types::Serialiser::true");
997	#endif	1221	#endif
998	return newSVsv (types_true);	1222	return newSVsv (types_true);
999	case 22:	1223	case SIMPLE_NULL:
1000	return newSVsv (&PL_sv_undef);	1224	return newSVsv (&PL_sv_undef);
1001	case 23:	1225	case SIMPLE_UNDEF:
1002	#if CBOR_SLOW	1226	#if CBOR_SLOW
1003	types_error = get_bool ("Types::Serialiser::error");	1227	types_error = get_bool ("Types::Serialiser::error");
1004	#endif	1228	#endif
1005	return newSVsv (types_error);	1229	return newSVsv (types_error);
1006		1230
1007	case 25:	1231	case MISC_FLOAT16:
1008	{	1232	{
1009	WANT (2);	1233	WANT (2);
1010		1234
1011	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1235	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
1012	dec->cur += 2;	1236	dec->cur += 2;
1013		1237
1014	return newSVnv (ecb_binary16_to_float (fp));	1238	return newSVnv (ecb_binary16_to_float (fp));
1015	}	1239	}
1016		1240
1017	case 26:	1241	case MISC_FLOAT32:
1018	{	1242	{
1019	uint32_t fp;	1243	uint32_t fp;
1020	WANT (4);	1244	WANT (4);
1021	memcpy (&fp, dec->cur, 4);	1245	memcpy (&fp, dec->cur, 4);
1022	dec->cur += 4;	1246	dec->cur += 4;
…		…
1025	fp = ecb_bswap32 (fp);	1249	fp = ecb_bswap32 (fp);
1026		1250
1027	return newSVnv (ecb_binary32_to_float (fp));	1251	return newSVnv (ecb_binary32_to_float (fp));
1028	}	1252	}
1029		1253
1030	case 27:	1254	case MISC_FLOAT64:
1031	{	1255	{
1032	uint64_t fp;	1256	uint64_t fp;
1033	WANT (8);	1257	WANT (8);
1034	memcpy (&fp, dec->cur, 8);	1258	memcpy (&fp, dec->cur, 8);
1035	dec->cur += 8;	1259	dec->cur += 8;
…		…
1038	fp = ecb_bswap64 (fp);	1262	fp = ecb_bswap64 (fp);
1039		1263
1040	return newSVnv (ecb_binary64_to_double (fp));	1264	return newSVnv (ecb_binary64_to_double (fp));
1041	}	1265	}
1042		1266
1043	// 0..19 unassigned	1267	// 0..19 unassigned simple
1044	// 24 reserved + unassigned (reserved values are not encodable)	1268	// 24 reserved + unassigned simple (reserved values are not encodable)
		1269	// 28-30 unassigned misc
		1270	// 31 break code
1045	default:	1271	default:
1046	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1272	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1047	}	1273	}
1048		1274
1049	break;	1275	break;
1050	}	1276	}
1051		1277
…		…
1054	}	1280	}
1055		1281
1056	static SV *	1282	static SV *
1057	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1283	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
1058	{	1284	{
1059	dec_t dec = { };	1285	dec_t dec = { 0 };
1060	SV *sv;	1286	SV *sv;
1061	STRLEN len;	1287	STRLEN len;
1062	char *data = SvPVbyte (string, len);	1288	char *data = SvPVbyte (string, len);
1063		1289
1064	if (len > cbor->max_size && cbor->max_size)	1290	if (len > cbor->max_size && cbor->max_size)
…		…
1078	if (dec.cur != dec.end && !dec.err)	1304	if (dec.cur != dec.end && !dec.err)
1079	dec.err = "garbage after CBOR object";	1305	dec.err = "garbage after CBOR object";
1080		1306
1081	if (dec.err)	1307	if (dec.err)
1082	{	1308	{
		1309	if (dec.shareable)
		1310	{
		1311	// need to break cyclic links, which would all be in shareable
		1312	int i;
		1313	SV **svp;
		1314
		1315	for (i = av_len (dec.shareable) + 1; i--; )
		1316	if ((svp = av_fetch (dec.shareable, i, 0)))
		1317	sv_setsv (*svp, &PL_sv_undef);
		1318	}
		1319
1083	SvREFCNT_dec (sv);	1320	SvREFCNT_dec_NN (sv);
		1321
		1322	if (dec.err_sv)
		1323	sv_2mortal (dec.err_sv);
		1324
1084	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);	1325	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);
1085	}	1326	}
1086		1327
1087	sv = sv_2mortal (sv);	1328	sv = sv_2mortal (sv);
1088		1329
1089	return sv;	1330	return sv;
1090	}	1331	}
1091		1332
		1333	/////////////////////////////////////////////////////////////////////////////
		1334	// incremental parser
		1335
		1336	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1337
		1338	// returns 0 for notyet, 1 for success or error
		1339	static int
		1340	incr_parse (CBOR *self, SV *cborstr)
		1341	{
		1342	STRLEN cur;
		1343	SvPV (cborstr, cur);
		1344
		1345	while (ecb_expect_true (self->incr_need <= cur))
		1346	{
		1347	// table of integer count bytes
		1348	static I8 incr_len[MINOR_MASK + 1] = {
		1349	0, 0, 0, 0, 0, 0, 0, 0,
		1350	0, 0, 0, 0, 0, 0, 0, 0,
		1351	0, 0, 0, 0, 0, 0, 0, 0,
		1352	1, 2, 4, 8,-1,-1,-1,-2
		1353	};
		1354
		1355	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1356	U8 m = *p & MINOR_MASK;
		1357	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1358	I8 ilen = incr_len[m];
		1359
		1360	self->incr_need = self->incr_pos + 1;
		1361
		1362	if (ecb_expect_false (ilen < 0))
		1363	{
		1364	if (m != MINOR_INDEF)
		1365	return 1; // error
		1366
		1367	if (*p == (MAJOR_MISC | MINOR_INDEF))
		1368	{
		1369	if (count >= 0)
		1370	return 1; // error
		1371
		1372	count = 1;
		1373	}
		1374	else
		1375	{
		1376	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1377	count = -1;
		1378	}
		1379	}
		1380	else
		1381	{
		1382	self->incr_need += ilen;
		1383	if (ecb_expect_false (self->incr_need > cur))
		1384	return 0;
		1385
		1386	int major = *p >> MAJOR_SHIFT;
		1387
		1388	switch (major)
		1389	{
		1390	case MAJOR_TAG >> MAJOR_SHIFT:
		1391	++count; // tags merely prefix another value
		1392	break;
		1393
		1394	case MAJOR_BYTES >> MAJOR_SHIFT:
		1395	case MAJOR_TEXT >> MAJOR_SHIFT:
		1396	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1397	case MAJOR_MAP >> MAJOR_SHIFT:
		1398	{
		1399	UV len;
		1400
		1401	if (ecb_expect_false (ilen))
		1402	{
		1403	len = 0;
		1404
		1405	do {
		1406	len = (len << 8) | *++p;
		1407	} while (--ilen);
		1408	}
		1409	else
		1410	len = m;
		1411
		1412	switch (major)
		1413	{
		1414	case MAJOR_BYTES >> MAJOR_SHIFT:
		1415	case MAJOR_TEXT >> MAJOR_SHIFT:
		1416	self->incr_need += len;
		1417	if (ecb_expect_false (self->incr_need > cur))
		1418	return 0;
		1419
		1420	break;
		1421
		1422	case MAJOR_MAP >> MAJOR_SHIFT:
		1423	len <<= 1;
		1424	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1425	if (len)
		1426	{
		1427	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1428	count = len + 1;
		1429	}
		1430	break;
		1431	}
		1432	}
		1433	}
		1434	}
		1435
		1436	self->incr_pos = self->incr_need;
		1437
		1438	if (count > 0)
		1439	{
		1440	while (!--count)
		1441	{
		1442	if (!AvFILLp (self->incr_count))
		1443	return 1; // done
		1444
		1445	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1446	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1447	}
		1448
		1449	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1450	}
		1451	}
		1452
		1453	return 0;
		1454	}
		1455
		1456
1092	/////////////////////////////////////////////////////////////////////////////	1457	/////////////////////////////////////////////////////////////////////////////
1093	// XS interface functions	1458	// XS interface functions
1094		1459
1095	MODULE = CBOR::XS PACKAGE = CBOR::XS	1460	MODULE = CBOR::XS PACKAGE = CBOR::XS
1096		1461
…		…
1108		1473
1109	default_filter = newSVpv ("CBOR::XS::default_filter", 0);	1474	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
1110		1475
1111	sv_cbor = newSVpv ("CBOR", 0);	1476	sv_cbor = newSVpv ("CBOR", 0);
1112	SvREADONLY_on (sv_cbor);	1477	SvREADONLY_on (sv_cbor);
		1478
		1479	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1113	}	1480	}
1114		1481
1115	PROTOTYPES: DISABLE	1482	PROTOTYPES: DISABLE
1116		1483
1117	void CLONE (...)	1484	void CLONE (...)
…		…
1136	void shrink (CBOR *self, int enable = 1)	1503	void shrink (CBOR *self, int enable = 1)
1137	ALIAS:	1504	ALIAS:
1138	shrink = F_SHRINK	1505	shrink = F_SHRINK
1139	allow_unknown = F_ALLOW_UNKNOWN	1506	allow_unknown = F_ALLOW_UNKNOWN
1140	allow_sharing = F_ALLOW_SHARING	1507	allow_sharing = F_ALLOW_SHARING
1141	allow_stringref = F_ALLOW_STRINGREF	1508	allow_cycles = F_ALLOW_CYCLES
		1509	forbid_objects = F_FORBID_OBJECTS
		1510	pack_strings = F_PACK_STRINGS
		1511	text_keys = F_TEXT_KEYS
		1512	text_strings = F_TEXT_STRINGS
		1513	validate_utf8 = F_VALIDATE_UTF8
1142	PPCODE:	1514	PPCODE:
1143	{	1515	{
1144	if (enable)	1516	if (enable)
1145	self->flags |= ix;	1517	self->flags |= ix;
1146	else	1518	else
…		…
1152	void get_shrink (CBOR *self)	1524	void get_shrink (CBOR *self)
1153	ALIAS:	1525	ALIAS:
1154	get_shrink = F_SHRINK	1526	get_shrink = F_SHRINK
1155	get_allow_unknown = F_ALLOW_UNKNOWN	1527	get_allow_unknown = F_ALLOW_UNKNOWN
1156	get_allow_sharing = F_ALLOW_SHARING	1528	get_allow_sharing = F_ALLOW_SHARING
1157	get_allow_stringref = F_ALLOW_STRINGREF	1529	get_allow_cycles = F_ALLOW_CYCLES
		1530	get_forbid_objects = F_FORBID_OBJECTS
		1531	get_pack_strings = F_PACK_STRINGS
		1532	get_text_keys = F_TEXT_KEYS
		1533	get_text_strings = F_TEXT_STRINGS
		1534	get_validate_utf8 = F_VALIDATE_UTF8
1158	PPCODE:	1535	PPCODE:
1159	XPUSHs (boolSV (self->flags & ix));	1536	XPUSHs (boolSV (self->flags & ix));
1160		1537
1161	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1538	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1162	PPCODE:	1539	PPCODE:
…		…
1211	EXTEND (SP, 2);	1588	EXTEND (SP, 2);
1212	PUSHs (sv);	1589	PUSHs (sv);
1213	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1590	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1214	}	1591	}
1215		1592
		1593	void incr_parse (CBOR *self, SV *cborstr)
		1594	ALIAS:
		1595	incr_parse_multiple = 1
		1596	PPCODE:
		1597	{
		1598	if (SvUTF8 (cborstr))
		1599	sv_utf8_downgrade (cborstr, 0);
		1600
		1601	if (!self->incr_count)
		1602	{
		1603	self->incr_count = newAV ();
		1604	self->incr_pos = 0;
		1605	self->incr_need = 1;
		1606
		1607	av_push (self->incr_count, newSViv (1));
		1608	}
		1609
		1610	do
		1611	{
		1612	if (!incr_parse (self, cborstr))
		1613	{
		1614	if (self->incr_need > self->max_size && self->max_size)
		1615	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1616	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1617
		1618	break;
		1619	}
		1620
		1621	SV *sv;
		1622	char *offset;
		1623
		1624	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1625	XPUSHs (sv);
		1626
		1627	sv_chop (cborstr, offset);
		1628
		1629	av_clear (self->incr_count);
		1630	av_push (self->incr_count, newSViv (1));
		1631
		1632	self->incr_pos = 0;
		1633	self->incr_need = self->incr_pos + 1;
		1634	}
		1635	while (ix);
		1636	}
		1637
		1638	void incr_reset (CBOR *self)
		1639	CODE:
		1640	{
		1641	SvREFCNT_dec (self->incr_count);
		1642	self->incr_count = 0;
		1643	}
		1644
1216	void DESTROY (CBOR *self)	1645	void DESTROY (CBOR *self)
1217	PPCODE:	1646	PPCODE:
1218	cbor_free (self);	1647	cbor_free (self);
1219		1648
1220	PROTOTYPES: ENABLE	1649	PROTOTYPES: ENABLE
1221		1650
1222	void encode_cbor (SV *scalar)	1651	void encode_cbor (SV *scalar)
		1652	ALIAS:
		1653	encode_cbor = 0
		1654	encode_cbor_sharing = F_ALLOW_SHARING
1223	PPCODE:	1655	PPCODE:
1224	{	1656	{
1225	CBOR cbor;	1657	CBOR cbor;
1226	cbor_init (&cbor);	1658	cbor_init (&cbor);
		1659	cbor.flags |= ix;
1227	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1660	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1228	XPUSHs (scalar);	1661	XPUSHs (scalar);
1229	}	1662	}
1230		1663
1231	void decode_cbor (SV *cborstr)	1664	void decode_cbor (SV *cborstr)
…		…
1235	cbor_init (&cbor);	1668	cbor_init (&cbor);
1236	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;	1669	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;
1237	XPUSHs (cborstr);	1670	XPUSHs (cborstr);
1238	}	1671	}
1239		1672
		1673	#ifdef __AFL_COMPILER
		1674
		1675	void
		1676	afl_init ()
		1677	CODE:
		1678	__AFL_INIT ();
		1679
		1680	int
		1681	afl_loop (unsigned int count = 10000)
		1682	CODE:
		1683	RETVAL = __AFL_LOOP (count);
		1684	OUTPUT:
		1685	RETVAL
		1686
		1687	#endif
		1688

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