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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 1.65 by root, Thu Nov 15 19:52:41 2018 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	PUSHMARK (SP);
402	EXTEND (SP, 2);	516	EXTEND (SP, 2);
403	// we re-bless the reference to get overload and other niceties right	517	// we re-bless the reference to get overload and other niceties right
404	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	518	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
405	PUSHs (sv_cbor);	519	PUSHs (sv_cbor);
406		520
…		…
411	// catch this surprisingly common error	525	// catch this surprisingly common error
412	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	526	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));	527	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
414		528
415	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	529	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
416	encode_uint (enc, 0x80, count + 1);	530	encode_uint (enc, MAJOR_ARRAY, count + 1);
417	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	531	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
418		532
419	while (count)	533	{
		534	int i;
		535
		536	for (i = 0; i < count; ++i)
420	encode_sv (enc, SP[1 - count--]);	537	encode_sv (enc, SP[i + 1 - count]);
		538
		539	SP -= count;
		540	}
421		541
422	PUTBACK;	542	PUTBACK;
423		543
424	FREETMPS; LEAVE;	544	FREETMPS; LEAVE;
425	}	545	}
…		…
443	{	563	{
444	double nv = SvNVX (sv);	564	double nv = SvNVX (sv);
445		565
446	need (enc, 9);	566	need (enc, 9);
447		567
448	if (ecb_expect_false (nv == (U32)nv))	568	if (ecb_expect_false (nv == (NV)(U32)nv))
449	encode_uint (enc, 0x00, (U32)nv);	569	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
450	//TODO: maybe I32?	570	//TODO: maybe I32?
451	else if (ecb_expect_false (nv == (float)nv))	571	else if (ecb_expect_false (nv == (float)nv))
452	{	572	{
		573	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
		574
453	uint32_t fp = ecb_float_to_binary32 (nv);	575	uint32_t fp = ecb_float_to_binary32 (nv);
454
455	*enc->cur++ = 0xe0 | 26;
456		576
457	if (!ecb_big_endian ())	577	if (!ecb_big_endian ())
458	fp = ecb_bswap32 (fp);	578	fp = ecb_bswap32 (fp);
459		579
460	memcpy (enc->cur, &fp, 4);	580	memcpy (enc->cur, &fp, 4);
461	enc->cur += 4;	581	enc->cur += 4;
462	}	582	}
463	else	583	else
464	{	584	{
		585	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
		586
465	uint64_t fp = ecb_double_to_binary64 (nv);	587	uint64_t fp = ecb_double_to_binary64 (nv);
466
467	*enc->cur++ = 0xe0 | 27;
468		588
469	if (!ecb_big_endian ())	589	if (!ecb_big_endian ())
470	fp = ecb_bswap64 (fp);	590	fp = ecb_bswap64 (fp);
471		591
472	memcpy (enc->cur, &fp, 8);	592	memcpy (enc->cur, &fp, 8);
…		…
481		601
482	if (SvPOKp (sv))	602	if (SvPOKp (sv))
483	{	603	{
484	STRLEN len;	604	STRLEN len;
485	char *str = SvPV (sv, len);	605	char *str = SvPV (sv, len);
486	encode_str (enc, SvUTF8 (sv), str, len);	606	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
487	}	607	}
488	else if (SvNOKp (sv))	608	else if (SvNOKp (sv))
489	encode_nv (enc, sv);	609	encode_nv (enc, sv);
490	else if (SvIOKp (sv))	610	else if (SvIOKp (sv))
491	{	611	{
492	if (SvIsUV (sv))	612	if (SvIsUV (sv))
493	encode_uint (enc, 0x00, SvUVX (sv));	613	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
494	else if (SvIVX (sv) >= 0)	614	else if (SvIVX (sv) >= 0)
495	encode_uint (enc, 0x00, SvIVX (sv));	615	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
496	else	616	else
497	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	617	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
498	}	618	}
499	else if (SvROK (sv))	619	else if (SvROK (sv))
500	encode_rv (enc, SvRV (sv));	620	encode_rv (enc, SvRV (sv));
501	else if (!SvOK (sv))	621	else if (!SvOK (sv))
502	encode_ch (enc, 0xe0 | 22);	622	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
503	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	623	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
504	encode_ch (enc, 0xe0 | 23);	624	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
505	else	625	else
506	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	626	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
507	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	627	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
508	}	628	}
509		629
510	static SV *	630	static SV *
511	encode_cbor (SV *scalar, CBOR *cbor)	631	encode_cbor (SV *scalar, CBOR *cbor)
512	{	632	{
513	enc_t enc = { };	633	enc_t enc = { 0 };
514		634
515	enc.cbor = *cbor;	635	enc.cbor = *cbor;
516	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	636	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
517	enc.cur = SvPVX (enc.sv);	637	enc.cur = SvPVX (enc.sv);
518	enc.end = SvEND (enc.sv);	638	enc.end = SvEND (enc.sv);
519		639
520	SvPOK_only (enc.sv);	640	SvPOK_only (enc.sv);
521		641
522	if (cbor->flags & F_ALLOW_STRINGREF)	642	if (cbor->flags & F_PACK_STRINGS)
523	{	643	{
524	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	644	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
525	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());	645	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
526	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());	646	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
527	}	647	}
…		…
550	U32 depth; // recursion depth	670	U32 depth; // recursion depth
551	U32 maxdepth; // recursion depth limit	671	U32 maxdepth; // recursion depth limit
552	AV *shareable;	672	AV *shareable;
553	AV *stringref;	673	AV *stringref;
554	SV *decode_tagged;	674	SV *decode_tagged;
		675	SV *err_sv; // optional sv for error, needs to be freed
555	} dec_t;	676	} dec_t;
556		677
557	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	678	// set dec->err to ERRSV
		679	ecb_cold static void
		680	err_errsv (dec_t *dec)
		681	{
		682	if (!dec->err)
		683	{
		684	dec->err_sv = newSVsv (ERRSV);
558		685
559	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	686	// chop off the trailing \n
		687	SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1);
		688	*SvEND (dec->err_sv) = 0;
560		689
		690	dec->err = SvPVutf8_nolen (dec->err_sv);
		691	}
		692	}
		693
		694	// the following functions are used to reduce code size and help the compiler to optimise
		695	ecb_cold static void
		696	err_set (dec_t *dec, const char *reason)
		697	{
		698	if (!dec->err)
		699	dec->err = reason;
		700	}
		701
		702	ecb_cold static void
		703	err_unexpected_end (dec_t *dec)
		704	{
		705	err_set (dec, "unexpected end of CBOR data");
		706	}
		707
		708	#define ERR_DO(do) SB do; goto fail; SE
		709	#define ERR(reason) ERR_DO (err_set (dec, reason))
		710	#define ERR_ERRSV ERR_DO (err_errsv (dec))
		711
		712	#define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec))
		713
561	#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED)	714	#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	715	#define DEC_DEC_DEPTH --dec->depth
563		716
564	static UV	717	static UV
565	decode_uint (dec_t *dec)	718	decode_uint (dec_t *dec)
566	{	719	{
567	switch (*dec->cur & 31)	720	U8 m = *dec->cur & MINOR_MASK;
568	{	721	++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		722
574	case 24:	723	if (ecb_expect_true (m < LENGTH_EXT1))
		724	return m;
		725	else if (ecb_expect_true (m == LENGTH_EXT1))
		726	{
575	WANT (2);	727	WANT (1);
576	dec->cur += 2;	728	dec->cur += 1;
577	return dec->cur[-1];	729	return dec->cur[-1];
578		730	}
579	case 25:	731	else if (ecb_expect_true (m == LENGTH_EXT2))
		732	{
580	WANT (3);	733	WANT (2);
581	dec->cur += 3;	734	dec->cur += 2;
582	return (((UV)dec->cur[-2]) << 8)	735	return (((UV)dec->cur[-2]) << 8)
583	| ((UV)dec->cur[-1]);	736	| ((UV)dec->cur[-1]);
584		737	}
585	case 26:	738	else if (ecb_expect_true (m == LENGTH_EXT4))
		739	{
586	WANT (5);	740	WANT (4);
587	dec->cur += 5;	741	dec->cur += 4;
588	return (((UV)dec->cur[-4]) << 24)	742	return (((UV)dec->cur[-4]) << 24)
589	| (((UV)dec->cur[-3]) << 16)	743	| (((UV)dec->cur[-3]) << 16)
590	| (((UV)dec->cur[-2]) << 8)	744	| (((UV)dec->cur[-2]) << 8)
591	| ((UV)dec->cur[-1]);	745	| ((UV)dec->cur[-1]);
592		746	}
593	case 27:	747	else if (ecb_expect_true (m == LENGTH_EXT8))
		748	{
594	WANT (9);	749	WANT (8);
595	dec->cur += 9;	750	dec->cur += 8;
		751
		752	return
		753	#if UVSIZE < 8
		754	0
		755	#else
596	return (((UV)dec->cur[-8]) << 56)	756	(((UV)dec->cur[-8]) << 56)
597	| (((UV)dec->cur[-7]) << 48)	757	| (((UV)dec->cur[-7]) << 48)
598	| (((UV)dec->cur[-6]) << 40)	758	| (((UV)dec->cur[-6]) << 40)
599	| (((UV)dec->cur[-5]) << 32)	759	| (((UV)dec->cur[-5]) << 32)
		760	#endif
600	| (((UV)dec->cur[-4]) << 24)	761	| (((UV)dec->cur[-4]) << 24)
601	| (((UV)dec->cur[-3]) << 16)	762	| (((UV)dec->cur[-3]) << 16)
602	| (((UV)dec->cur[-2]) << 8)	763	| (((UV)dec->cur[-2]) << 8)
603	| ((UV)dec->cur[-1]);	764	| ((UV)dec->cur[-1]);
604		765	}
605	default:	766	else
606	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	767	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
607	}
608		768
609	fail:	769	fail:
610	return 0;	770	return 0;
611	}	771	}
612		772
…		…
617	{	777	{
618	AV *av = newAV ();	778	AV *av = newAV ();
619		779
620	DEC_INC_DEPTH;	780	DEC_INC_DEPTH;
621		781
622	if ((*dec->cur & 31) == 31)	782	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
623	{	783	{
624	++dec->cur;	784	++dec->cur;
625		785
626	for (;;)	786	for (;;)
627	{	787	{
628	WANT (1);	788	WANT (1);
629		789
630	if (*dec->cur == (0xe0 | 31))	790	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
631	{	791	{
632	++dec->cur;	792	++dec->cur;
633	break;	793	break;
634	}	794	}
635		795
636	av_push (av, decode_sv (dec));	796	av_push (av, decode_sv (dec));
637	}	797	}
638	}	798	}
639	else	799	else
640	{	800	{
641	int i, len = decode_uint (dec);	801	UV i, len = decode_uint (dec);
642		802
		803	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);	804	av_fill (av, len - 1);
644		805
645	for (i = 0; i < len; ++i)	806	for (i = 0; i < len; ++i)
646	AvARRAY (av)[i] = decode_sv (dec);	807	AvARRAY (av)[i] = decode_sv (dec);
647	}	808	}
648		809
649	DEC_DEC_DEPTH;	810	DEC_DEC_DEPTH;
650	return newRV_noinc ((SV *)av);	811	return newRV_noinc ((SV *)av);
651		812
652	fail:	813	fail:
653	SvREFCNT_dec (av);	814	SvREFCNT_dec_NN (av);
654	DEC_DEC_DEPTH;	815	DEC_DEC_DEPTH;
655	return &PL_sv_undef;	816	return &PL_sv_undef;
656	}	817	}
657		818
658	static void	819	static void
…		…
660	{	821	{
661	// for speed reasons, we specialcase single-string	822	// for speed reasons, we specialcase single-string
662	// byte or utf-8 strings as keys, but only when !stringref	823	// byte or utf-8 strings as keys, but only when !stringref
663		824
664	if (ecb_expect_true (!dec->stringref))	825	if (ecb_expect_true (!dec->stringref))
665	if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27)	826	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
666	{	827	{
667	I32 len = decode_uint (dec);	828	STRLEN len = decode_uint (dec);
668	char *key = (char *)dec->cur;	829	char *key = (char *)dec->cur;
669		830
		831	WANT (len);
670	dec->cur += len;	832	dec->cur += len;
671		833
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);	834	hv_store (hv, key, len, decode_sv (dec), 0);
676		835
677	return;	836	return;
678	}	837	}
679	else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27)	838	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
680	{	839	{
681	I32 len = decode_uint (dec);	840	STRLEN len = decode_uint (dec);
682	char *key = (char *)dec->cur;	841	char *key = (char *)dec->cur;
683		842
		843	WANT (len);
684	dec->cur += len;	844	dec->cur += len;
685		845
686	if (ecb_expect_false (dec->stringref))	846	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
687	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	847	if (!is_utf8_string (key, len))
		848	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
688		849
689	hv_store (hv, key, -len, decode_sv (dec), 0);	850	hv_store (hv, key, -len, decode_sv (dec), 0);
690		851
691	return;	852	return;
692	}	853	}
693		854
694	SV *k = decode_sv (dec);	855	SV *k = decode_sv (dec);
695	SV *v = decode_sv (dec);	856	SV *v = decode_sv (dec);
696		857
		858	// we leak memory if uncaught exceptions are thrown by random magical
		859	// methods, and this is hopefully the only place where it can happen,
		860	// so if there is a chance of an exception, take the very slow path.
		861	// since catching exceptions is "undocumented/internal/forbidden" by
		862	// the new p5p powers, we need to call out to a perl function :/
		863	if (ecb_expect_false (SvAMAGIC (k)))
		864	{
		865	dSP;
		866
		867	ENTER; SAVETMPS;
		868	PUSHMARK (SP);
		869	EXTEND (SP, 3);
		870	PUSHs (sv_2mortal (newRV_inc ((SV *)hv)));
		871	PUSHs (sv_2mortal (k));
		872	PUSHs (sv_2mortal (v));
		873
		874	PUTBACK;
		875	call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL);
		876	SPAGAIN;
		877
		878	FREETMPS; LEAVE;
		879
		880	if (SvTRUE (ERRSV))
		881	ERR_ERRSV;
		882
		883	return;
		884	}
		885
697	hv_store_ent (hv, k, v, 0);	886	hv_store_ent (hv, k, v, 0);
698	SvREFCNT_dec (k);	887	SvREFCNT_dec_NN (k);
		888
		889	fail:
		890	;
699	}	891	}
700		892
701	static SV *	893	static SV *
702	decode_hv (dec_t *dec)	894	decode_hv (dec_t *dec)
703	{	895	{
704	HV *hv = newHV ();	896	HV *hv = newHV ();
705		897
706	DEC_INC_DEPTH;	898	DEC_INC_DEPTH;
707		899
708	if ((*dec->cur & 31) == 31)	900	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
709	{	901	{
710	++dec->cur;	902	++dec->cur;
711		903
712	for (;;)	904	for (;;)
713	{	905	{
714	WANT (1);	906	WANT (1);
715		907
716	if (*dec->cur == (0xe0 | 31))	908	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
717	{	909	{
718	++dec->cur;	910	++dec->cur;
719	break;	911	break;
720	}	912	}
721		913
722	decode_he (dec, hv);	914	decode_he (dec, hv);
723	}	915	}
724	}	916	}
725	else	917	else
726	{	918	{
727	int pairs = decode_uint (dec);	919	UV pairs = decode_uint (dec);
		920
		921	WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes
728		922
729	while (pairs--)	923	while (pairs--)
730	decode_he (dec, hv);	924	decode_he (dec, hv);
731	}	925	}
732		926
733	DEC_DEC_DEPTH;	927	DEC_DEC_DEPTH;
734	return newRV_noinc ((SV *)hv);	928	return newRV_noinc ((SV *)hv);
735		929
736	fail:	930	fail:
737	SvREFCNT_dec (hv);	931	SvREFCNT_dec_NN (hv);
738	DEC_DEC_DEPTH;	932	DEC_DEC_DEPTH;
739	return &PL_sv_undef;	933	return &PL_sv_undef;
740	}	934	}
741		935
742	static SV *	936	static SV *
743	decode_str (dec_t *dec, int utf8)	937	decode_str (dec_t *dec, int utf8)
744	{	938	{
745	SV *sv = 0;	939	SV *sv = 0;
746		940
747	if ((*dec->cur & 31) == 31)	941	if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF))
748	{	942	{
		943	// indefinite length strings
749	++dec->cur;	944	++dec->cur;
750		945
		946	U8 major = *dec->cur & MAJOR_MISC;
		947
751	sv = newSVpvn ("", 0);	948	sv = newSVpvn ("", 0);
752		949
753	// not very fast, and certainly not robust against illegal input
754	for (;;)	950	for (;;)
755	{	951	{
756	WANT (1);	952	WANT (1);
757		953
758	if (*dec->cur == (0xe0 | 31))	954	if ((*dec->cur - major) > LENGTH_EXT8)
		955	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
759	{	956	{
760	++dec->cur;	957	++dec->cur;
761	break;	958	break;
762	}	959	}
		960	else
		961	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
763		962
764	sv_catsv (sv, decode_sv (dec));	963	STRLEN len = decode_uint (dec);
		964
		965	WANT (len);
		966	sv_catpvn (sv, dec->cur, len);
		967	dec->cur += len;
765	}	968	}
766	}	969	}
767	else	970	else
768	{	971	{
769	STRLEN len = decode_uint (dec);	972	STRLEN len = decode_uint (dec);
…		…
776	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))	979	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
777	av_push (dec->stringref, SvREFCNT_inc_NN (sv));	980	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
778	}	981	}
779		982
780	if (utf8)	983	if (utf8)
		984	{
		985	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		986	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		987	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		988
781	SvUTF8_on (sv);	989	SvUTF8_on (sv);
		990	}
782		991
783	return sv;	992	return sv;
784		993
785	fail:	994	fail:
786	SvREFCNT_dec (sv);	995	SvREFCNT_dec (sv);
…		…
805	sv = newRV_noinc (decode_sv (dec));	1014	sv = newRV_noinc (decode_sv (dec));
806	break;	1015	break;
807		1016
808	case CBOR_TAG_STRINGREF_NAMESPACE:	1017	case CBOR_TAG_STRINGREF_NAMESPACE:
809	{	1018	{
		1019	// do not use SAVETMPS/FREETMPS, as these will
		1020	// erase mortalised caches, e.g. "shareable"
810	ENTER; SAVETMPS;	1021	ENTER;
811		1022
812	SAVESPTR (dec->stringref);	1023	SAVESPTR (dec->stringref);
813	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());	1024	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
814		1025
815	sv = decode_sv (dec);	1026	sv = decode_sv (dec);
816		1027
817	FREETMPS; LEAVE;	1028	LEAVE;
818	}	1029	}
819	break;	1030	break;
820		1031
821	case CBOR_TAG_STRINGREF:	1032	case CBOR_TAG_STRINGREF:
822	{	1033	{
823	if ((*dec->cur >> 5) != 0)	1034	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
824	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	1035	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
825		1036
826	UV idx = decode_uint (dec);	1037	UV idx = decode_uint (dec);
827		1038
828	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))	1039	if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref)))
829	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");	1040	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");
830		1041
831	sv = newSVsv (AvARRAY (dec->stringref)[idx]);	1042	sv = newSVsv (AvARRAY (dec->stringref)[idx]);
832	}	1043	}
833	break;	1044	break;
…		…
835	case CBOR_TAG_VALUE_SHAREABLE:	1046	case CBOR_TAG_VALUE_SHAREABLE:
836	{	1047	{
837	if (ecb_expect_false (!dec->shareable))	1048	if (ecb_expect_false (!dec->shareable))
838	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());	1049	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
839		1050
		1051	if (dec->cbor.flags & F_ALLOW_CYCLES)
		1052	{
840	sv = newSV (0);	1053	sv = newSV (0);
841	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	1054	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
842		1055
843	SV *osv = decode_sv (dec);	1056	SV *osv = decode_sv (dec);
844	sv_setsv (sv, osv);	1057	sv_setsv (sv, osv);
845	SvREFCNT_dec_NN (osv);	1058	SvREFCNT_dec_NN (osv);
		1059	}
		1060	else
		1061	{
		1062	av_push (dec->shareable, &PL_sv_undef);
		1063	int idx = AvFILLp (dec->shareable);
		1064	sv = decode_sv (dec);
		1065	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		1066	}
846	}	1067	}
847	break;	1068	break;
848		1069
849	case CBOR_TAG_VALUE_SHAREDREF:	1070	case CBOR_TAG_VALUE_SHAREDREF:
850	{	1071	{
851	if ((*dec->cur >> 5) != 0)	1072	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
852	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	1073	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
853		1074
854	UV idx = decode_uint (dec);	1075	UV idx = decode_uint (dec);
855		1076
856	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))	1077	if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable)))
857	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1078	ERR ("corrupted CBOR data (sharedref index out of bounds)");
858		1079
859	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	1080	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1081
		1082	if (sv == &PL_sv_undef)
		1083	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
860	}	1084	}
861	break;	1085	break;
862		1086
863	case CBOR_TAG_PERL_OBJECT:	1087	case CBOR_TAG_PERL_OBJECT:
864	{	1088	{
		1089	if (dec->cbor.flags & F_FORBID_OBJECTS)
		1090	goto filter;
		1091
865	sv = decode_sv (dec);	1092	sv = decode_sv (dec);
866		1093
867	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1094	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
868	ERR ("corrupted CBOR data (non-array perl object)");	1095	ERR ("corrupted CBOR data (non-array perl object)");
869		1096
…		…
879	if (!method)	1106	if (!method)
880	ERR ("cannot decode perl-object (package does not have a THAW method)");	1107	ERR ("cannot decode perl-object (package does not have a THAW method)");
881		1108
882	dSP;	1109	dSP;
883		1110
884	ENTER; SAVETMPS; PUSHMARK (SP);	1111	ENTER; SAVETMPS;
		1112	PUSHMARK (SP);
885	EXTEND (SP, len + 1);	1113	EXTEND (SP, len + 1);
886	// we re-bless the reference to get overload and other niceties right	1114	// we re-bless the reference to get overload and other niceties right
887	PUSHs (*av_fetch (av, 0, 1));	1115	PUSHs (*av_fetch (av, 0, 1));
888	PUSHs (sv_cbor);	1116	PUSHs (sv_cbor);
889		1117
…		…
897	SPAGAIN;	1125	SPAGAIN;
898		1126
899	if (SvTRUE (ERRSV))	1127	if (SvTRUE (ERRSV))
900	{	1128	{
901	FREETMPS; LEAVE;	1129	FREETMPS; LEAVE;
902	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1130	ERR_ERRSV;
903	}	1131	}
904		1132
905	SvREFCNT_dec (sv);	1133	SvREFCNT_dec_NN (sv);
906	sv = SvREFCNT_inc (POPs);	1134	sv = SvREFCNT_inc (POPs);
907		1135
908	PUTBACK;	1136	PUTBACK;
909		1137
910	FREETMPS; LEAVE;	1138	FREETMPS; LEAVE;
911	}	1139	}
912	break;	1140	break;
913		1141
914	default:	1142	default:
		1143	filter:
915	{	1144	{
		1145	SV *tag_sv = newSVuv (tag);
		1146
916	sv = decode_sv (dec);	1147	sv = decode_sv (dec);
917		1148
918	dSP;	1149	dSP;
919	ENTER; SAVETMPS; PUSHMARK (SP);	1150	ENTER; SAVETMPS;
		1151	PUSHMARK (SP);
920	EXTEND (SP, 2);	1152	EXTEND (SP, 2);
921	PUSHs (newSVuv (tag));	1153	PUSHs (tag_sv);
922	PUSHs (sv);	1154	PUSHs (sv);
923		1155
924	PUTBACK;	1156	PUTBACK;
925	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);	1157	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);
926	SPAGAIN;	1158	SPAGAIN;
927		1159
928	if (SvTRUE (ERRSV))	1160	if (SvTRUE (ERRSV))
929	{	1161	{
		1162	SvREFCNT_dec_NN (tag_sv);
930	FREETMPS; LEAVE;	1163	FREETMPS; LEAVE;
931	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1164	ERR_ERRSV;
932	}	1165	}
933		1166
934	if (count)	1167	if (count)
935	{	1168	{
		1169	SvREFCNT_dec_NN (tag_sv);
936	SvREFCNT_dec (sv);	1170	SvREFCNT_dec_NN (sv);
937	sv = SvREFCNT_inc (POPs);	1171	sv = SvREFCNT_inc_NN (TOPs);
		1172	SP -= count;
938	}	1173	}
939	else	1174	else
940	{	1175	{
941	AV *av = newAV ();	1176	AV *av = newAV ();
942	av_push (av, newSVuv (tag));	1177	av_push (av, tag_sv);
943	av_push (av, sv);	1178	av_push (av, sv);
944		1179
945	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1180	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
946	? cbor_tagged_stash	1181	? cbor_tagged_stash
947	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1182	: gv_stashpv ("CBOR::XS::Tagged" , 1);
…		…
965	static SV *	1200	static SV *
966	decode_sv (dec_t *dec)	1201	decode_sv (dec_t *dec)
967	{	1202	{
968	WANT (1);	1203	WANT (1);
969		1204
970	switch (*dec->cur >> 5)	1205	switch (*dec->cur >> MAJOR_SHIFT)
971	{	1206	{
972	case 0: // unsigned int	1207	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
973	return newSVuv (decode_uint (dec));	1208	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
974	case 1: // negative int	1209	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
975	return newSViv (-1 - (IV)decode_uint (dec));	1210	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
976	case 2: // octet string	1211	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
977	return decode_str (dec, 0);	1212	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
978	case 3: // utf-8 string	1213	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
979	return decode_str (dec, 1);	1214
980	case 4: // array	1215	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)	1216	switch (*dec->cur++ & MINOR_MASK)
988	{	1217	{
989	case 20:	1218	case SIMPLE_FALSE:
990	#if CBOR_SLOW	1219	#if CBOR_SLOW
991	types_false = get_bool ("Types::Serialiser::false");	1220	types_false = get_bool ("Types::Serialiser::false");
992	#endif	1221	#endif
993	return newSVsv (types_false);	1222	return newSVsv (types_false);
994	case 21:	1223	case SIMPLE_TRUE:
995	#if CBOR_SLOW	1224	#if CBOR_SLOW
996	types_true = get_bool ("Types::Serialiser::true");	1225	types_true = get_bool ("Types::Serialiser::true");
997	#endif	1226	#endif
998	return newSVsv (types_true);	1227	return newSVsv (types_true);
999	case 22:	1228	case SIMPLE_NULL:
1000	return newSVsv (&PL_sv_undef);	1229	return newSVsv (&PL_sv_undef);
1001	case 23:	1230	case SIMPLE_UNDEF:
1002	#if CBOR_SLOW	1231	#if CBOR_SLOW
1003	types_error = get_bool ("Types::Serialiser::error");	1232	types_error = get_bool ("Types::Serialiser::error");
1004	#endif	1233	#endif
1005	return newSVsv (types_error);	1234	return newSVsv (types_error);
1006		1235
1007	case 25:	1236	case MISC_FLOAT16:
1008	{	1237	{
1009	WANT (2);	1238	WANT (2);
1010		1239
1011	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1240	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
1012	dec->cur += 2;	1241	dec->cur += 2;
1013		1242
1014	return newSVnv (ecb_binary16_to_float (fp));	1243	return newSVnv (ecb_binary16_to_float (fp));
1015	}	1244	}
1016		1245
1017	case 26:	1246	case MISC_FLOAT32:
1018	{	1247	{
1019	uint32_t fp;	1248	uint32_t fp;
1020	WANT (4);	1249	WANT (4);
1021	memcpy (&fp, dec->cur, 4);	1250	memcpy (&fp, dec->cur, 4);
1022	dec->cur += 4;	1251	dec->cur += 4;
…		…
1025	fp = ecb_bswap32 (fp);	1254	fp = ecb_bswap32 (fp);
1026		1255
1027	return newSVnv (ecb_binary32_to_float (fp));	1256	return newSVnv (ecb_binary32_to_float (fp));
1028	}	1257	}
1029		1258
1030	case 27:	1259	case MISC_FLOAT64:
1031	{	1260	{
1032	uint64_t fp;	1261	uint64_t fp;
1033	WANT (8);	1262	WANT (8);
1034	memcpy (&fp, dec->cur, 8);	1263	memcpy (&fp, dec->cur, 8);
1035	dec->cur += 8;	1264	dec->cur += 8;
…		…
1038	fp = ecb_bswap64 (fp);	1267	fp = ecb_bswap64 (fp);
1039		1268
1040	return newSVnv (ecb_binary64_to_double (fp));	1269	return newSVnv (ecb_binary64_to_double (fp));
1041	}	1270	}
1042		1271
1043	// 0..19 unassigned	1272	// 0..19 unassigned simple
1044	// 24 reserved + unassigned (reserved values are not encodable)	1273	// 24 reserved + unassigned simple (reserved values are not encodable)
		1274	// 28-30 unassigned misc
		1275	// 31 break code
1045	default:	1276	default:
1046	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1277	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1047	}	1278	}
1048		1279
1049	break;	1280	break;
1050	}	1281	}
1051		1282
…		…
1054	}	1285	}
1055		1286
1056	static SV *	1287	static SV *
1057	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1288	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
1058	{	1289	{
1059	dec_t dec = { };	1290	dec_t dec = { 0 };
1060	SV *sv;	1291	SV *sv;
1061	STRLEN len;	1292	STRLEN len;
1062	char *data = SvPVbyte (string, len);	1293	char *data = SvPVbyte (string, len);
1063		1294
1064	if (len > cbor->max_size && cbor->max_size)	1295	if (len > cbor->max_size && cbor->max_size)
…		…
1078	if (dec.cur != dec.end && !dec.err)	1309	if (dec.cur != dec.end && !dec.err)
1079	dec.err = "garbage after CBOR object";	1310	dec.err = "garbage after CBOR object";
1080		1311
1081	if (dec.err)	1312	if (dec.err)
1082	{	1313	{
		1314	if (dec.shareable)
		1315	{
		1316	// need to break cyclic links, which would all be in shareable
		1317	int i;
		1318	SV **svp;
		1319
		1320	for (i = av_len (dec.shareable) + 1; i--; )
		1321	if ((svp = av_fetch (dec.shareable, i, 0)))
		1322	sv_setsv (*svp, &PL_sv_undef);
		1323	}
		1324
1083	SvREFCNT_dec (sv);	1325	SvREFCNT_dec_NN (sv);
		1326
		1327	if (dec.err_sv)
		1328	sv_2mortal (dec.err_sv);
		1329
1084	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);	1330	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);
1085	}	1331	}
1086		1332
1087	sv = sv_2mortal (sv);	1333	sv = sv_2mortal (sv);
1088		1334
1089	return sv;	1335	return sv;
1090	}	1336	}
1091		1337
		1338	/////////////////////////////////////////////////////////////////////////////
		1339	// incremental parser
		1340
		1341	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1342
		1343	// returns 0 for notyet, 1 for success or error
		1344	static int
		1345	incr_parse (CBOR *self, SV *cborstr)
		1346	{
		1347	STRLEN cur;
		1348	SvPV (cborstr, cur);
		1349
		1350	while (ecb_expect_true (self->incr_need <= cur))
		1351	{
		1352	// table of integer count bytes
		1353	static I8 incr_len[MINOR_MASK + 1] = {
		1354	0, 0, 0, 0, 0, 0, 0, 0,
		1355	0, 0, 0, 0, 0, 0, 0, 0,
		1356	0, 0, 0, 0, 0, 0, 0, 0,
		1357	1, 2, 4, 8,-1,-1,-1,-2
		1358	};
		1359
		1360	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1361	U8 m = *p & MINOR_MASK;
		1362	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1363	I8 ilen = incr_len[m];
		1364
		1365	self->incr_need = self->incr_pos + 1;
		1366
		1367	if (ecb_expect_false (ilen < 0))
		1368	{
		1369	if (m != MINOR_INDEF)
		1370	return 1; // error
		1371
		1372	if (*p == (MAJOR_MISC | MINOR_INDEF))
		1373	{
		1374	if (count >= 0)
		1375	return 1; // error
		1376
		1377	count = 1;
		1378	}
		1379	else
		1380	{
		1381	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1382	count = -1;
		1383	}
		1384	}
		1385	else
		1386	{
		1387	self->incr_need += ilen;
		1388	if (ecb_expect_false (self->incr_need > cur))
		1389	return 0;
		1390
		1391	int major = *p >> MAJOR_SHIFT;
		1392
		1393	switch (major)
		1394	{
		1395	case MAJOR_TAG >> MAJOR_SHIFT:
		1396	++count; // tags merely prefix another value
		1397	break;
		1398
		1399	case MAJOR_BYTES >> MAJOR_SHIFT:
		1400	case MAJOR_TEXT >> MAJOR_SHIFT:
		1401	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1402	case MAJOR_MAP >> MAJOR_SHIFT:
		1403	{
		1404	UV len;
		1405
		1406	if (ecb_expect_false (ilen))
		1407	{
		1408	len = 0;
		1409
		1410	do {
		1411	len = (len << 8) | *++p;
		1412	} while (--ilen);
		1413	}
		1414	else
		1415	len = m;
		1416
		1417	switch (major)
		1418	{
		1419	case MAJOR_BYTES >> MAJOR_SHIFT:
		1420	case MAJOR_TEXT >> MAJOR_SHIFT:
		1421	self->incr_need += len;
		1422	if (ecb_expect_false (self->incr_need > cur))
		1423	return 0;
		1424
		1425	break;
		1426
		1427	case MAJOR_MAP >> MAJOR_SHIFT:
		1428	len <<= 1;
		1429	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1430	if (len)
		1431	{
		1432	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1433	count = len + 1;
		1434	}
		1435	break;
		1436	}
		1437	}
		1438	}
		1439	}
		1440
		1441	self->incr_pos = self->incr_need;
		1442
		1443	if (count > 0)
		1444	{
		1445	while (!--count)
		1446	{
		1447	if (!AvFILLp (self->incr_count))
		1448	return 1; // done
		1449
		1450	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1451	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1452	}
		1453
		1454	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1455	}
		1456	}
		1457
		1458	return 0;
		1459	}
		1460
		1461
1092	/////////////////////////////////////////////////////////////////////////////	1462	/////////////////////////////////////////////////////////////////////////////
1093	// XS interface functions	1463	// XS interface functions
1094		1464
1095	MODULE = CBOR::XS PACKAGE = CBOR::XS	1465	MODULE = CBOR::XS PACKAGE = CBOR::XS
1096		1466
…		…
1108		1478
1109	default_filter = newSVpv ("CBOR::XS::default_filter", 0);	1479	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
1110		1480
1111	sv_cbor = newSVpv ("CBOR", 0);	1481	sv_cbor = newSVpv ("CBOR", 0);
1112	SvREADONLY_on (sv_cbor);	1482	SvREADONLY_on (sv_cbor);
		1483
		1484	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1113	}	1485	}
1114		1486
1115	PROTOTYPES: DISABLE	1487	PROTOTYPES: DISABLE
1116		1488
1117	void CLONE (...)	1489	void CLONE (...)
…		…
1136	void shrink (CBOR *self, int enable = 1)	1508	void shrink (CBOR *self, int enable = 1)
1137	ALIAS:	1509	ALIAS:
1138	shrink = F_SHRINK	1510	shrink = F_SHRINK
1139	allow_unknown = F_ALLOW_UNKNOWN	1511	allow_unknown = F_ALLOW_UNKNOWN
1140	allow_sharing = F_ALLOW_SHARING	1512	allow_sharing = F_ALLOW_SHARING
1141	allow_stringref = F_ALLOW_STRINGREF	1513	allow_cycles = F_ALLOW_CYCLES
		1514	forbid_objects = F_FORBID_OBJECTS
		1515	pack_strings = F_PACK_STRINGS
		1516	text_keys = F_TEXT_KEYS
		1517	text_strings = F_TEXT_STRINGS
		1518	validate_utf8 = F_VALIDATE_UTF8
1142	PPCODE:	1519	PPCODE:
1143	{	1520	{
1144	if (enable)	1521	if (enable)
1145	self->flags |= ix;	1522	self->flags |= ix;
1146	else	1523	else
…		…
1152	void get_shrink (CBOR *self)	1529	void get_shrink (CBOR *self)
1153	ALIAS:	1530	ALIAS:
1154	get_shrink = F_SHRINK	1531	get_shrink = F_SHRINK
1155	get_allow_unknown = F_ALLOW_UNKNOWN	1532	get_allow_unknown = F_ALLOW_UNKNOWN
1156	get_allow_sharing = F_ALLOW_SHARING	1533	get_allow_sharing = F_ALLOW_SHARING
1157	get_allow_stringref = F_ALLOW_STRINGREF	1534	get_allow_cycles = F_ALLOW_CYCLES
		1535	get_forbid_objects = F_FORBID_OBJECTS
		1536	get_pack_strings = F_PACK_STRINGS
		1537	get_text_keys = F_TEXT_KEYS
		1538	get_text_strings = F_TEXT_STRINGS
		1539	get_validate_utf8 = F_VALIDATE_UTF8
1158	PPCODE:	1540	PPCODE:
1159	XPUSHs (boolSV (self->flags & ix));	1541	XPUSHs (boolSV (self->flags & ix));
1160		1542
1161	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1543	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1162	PPCODE:	1544	PPCODE:
…		…
1211	EXTEND (SP, 2);	1593	EXTEND (SP, 2);
1212	PUSHs (sv);	1594	PUSHs (sv);
1213	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1595	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1214	}	1596	}
1215		1597
		1598	void incr_parse (CBOR *self, SV *cborstr)
		1599	ALIAS:
		1600	incr_parse_multiple = 1
		1601	PPCODE:
		1602	{
		1603	if (SvUTF8 (cborstr))
		1604	sv_utf8_downgrade (cborstr, 0);
		1605
		1606	if (!self->incr_count)
		1607	{
		1608	self->incr_count = newAV ();
		1609	self->incr_pos = 0;
		1610	self->incr_need = 1;
		1611
		1612	av_push (self->incr_count, newSViv (1));
		1613	}
		1614
		1615	do
		1616	{
		1617	if (!incr_parse (self, cborstr))
		1618	{
		1619	if (self->incr_need > self->max_size && self->max_size)
		1620	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1621	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1622
		1623	break;
		1624	}
		1625
		1626	SV *sv;
		1627	char *offset;
		1628
		1629	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1630	XPUSHs (sv);
		1631
		1632	sv_chop (cborstr, offset);
		1633
		1634	av_clear (self->incr_count);
		1635	av_push (self->incr_count, newSViv (1));
		1636
		1637	self->incr_pos = 0;
		1638	self->incr_need = self->incr_pos + 1;
		1639	}
		1640	while (ix);
		1641	}
		1642
		1643	void incr_reset (CBOR *self)
		1644	CODE:
		1645	{
		1646	SvREFCNT_dec (self->incr_count);
		1647	self->incr_count = 0;
		1648	}
		1649
1216	void DESTROY (CBOR *self)	1650	void DESTROY (CBOR *self)
1217	PPCODE:	1651	PPCODE:
1218	cbor_free (self);	1652	cbor_free (self);
1219		1653
1220	PROTOTYPES: ENABLE	1654	PROTOTYPES: ENABLE
1221		1655
1222	void encode_cbor (SV *scalar)	1656	void encode_cbor (SV *scalar)
		1657	ALIAS:
		1658	encode_cbor = 0
		1659	encode_cbor_sharing = F_ALLOW_SHARING
1223	PPCODE:	1660	PPCODE:
1224	{	1661	{
1225	CBOR cbor;	1662	CBOR cbor;
1226	cbor_init (&cbor);	1663	cbor_init (&cbor);
		1664	cbor.flags |= ix;
1227	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1665	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1228	XPUSHs (scalar);	1666	XPUSHs (scalar);
1229	}	1667	}
1230		1668
1231	void decode_cbor (SV *cborstr)	1669	void decode_cbor (SV *cborstr)
…		…
1235	cbor_init (&cbor);	1673	cbor_init (&cbor);
1236	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;	1674	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;
1237	XPUSHs (cborstr);	1675	XPUSHs (cborstr);
1238	}	1676	}
1239		1677
		1678	#ifdef __AFL_COMPILER
		1679
		1680	void
		1681	afl_init ()
		1682	CODE:
		1683	__AFL_INIT ();
		1684
		1685	int
		1686	afl_loop (unsigned int count = 10000)
		1687	CODE:
		1688	RETVAL = __AFL_LOOP (count);
		1689	OUTPUT:
		1690	RETVAL
		1691
		1692	#endif
		1693

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