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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.26 by root, Fri Nov 22 09:40:13 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)
…		…
79	# define CBOR_SLOW 0	129	# define CBOR_SLOW 0
80	# define CBOR_STASH cbor_stash	130	# define CBOR_STASH cbor_stash
81	#endif	131	#endif
82		132
83	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::	133	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::
84	static SV *types_true, *types_false, *types_error, *sv_cbor;	134	static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter;
85		135
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;
		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.
90	} CBOR;	146	} CBOR;
91		147
92	ecb_inline void	148	ecb_inline void
93	cbor_init (CBOR *cbor)	149	cbor_init (CBOR *cbor)
94	{	150	{
95	Zero (cbor, 1, CBOR);	151	Zero (cbor, 1, CBOR);
96	cbor->max_depth = 512;	152	cbor->max_depth = 512;
		153	}
		154
		155	ecb_inline void
		156	cbor_free (CBOR *cbor)
		157	{
		158	SvREFCNT_dec (cbor->filter);
		159	SvREFCNT_dec (cbor->incr_count);
97	}	160	}
98		161
99	/////////////////////////////////////////////////////////////////////////////	162	/////////////////////////////////////////////////////////////////////////////
100	// utility functions	163	// utility functions
101		164
…		…
127		190
128	// minimum length of a string to be registered for stringref	191	// minimum length of a string to be registered for stringref
129	ecb_inline int	192	ecb_inline int
130	minimum_string_length (UV idx)	193	minimum_string_length (UV idx)
131	{	194	{
132	return idx > 23	195	return idx <= 23 ? 3
133	? idx > 0xffU	196	: idx <= 0xffU ? 4
134	? idx > 0xffffU	197	: idx <= 0xffffU ? 5
135	? idx > 0xffffffffU	198	: idx <= 0xffffffffU ? 7
136	? 7	199	: 11;
137	: 6
138	: 5
139	: 4
140	: 3;
141	}	200	}
142		201
143	/////////////////////////////////////////////////////////////////////////////	202	/////////////////////////////////////////////////////////////////////////////
144	// encoder	203	// encoder
145		204
…		…
158	} enc_t;	217	} enc_t;
159		218
160	ecb_inline void	219	ecb_inline void
161	need (enc_t *enc, STRLEN len)	220	need (enc_t *enc, STRLEN len)
162	{	221	{
163	if (ecb_expect_false (enc->cur + len >= enc->end))	222	if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len))
164	{	223	{
165	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);	224	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
166	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	225	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
167	enc->cur = SvPVX (enc->sv) + cur;	226	enc->cur = SvPVX (enc->sv) + cur;
168	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	227	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
…		…
179	static void	238	static void
180	encode_uint (enc_t *enc, int major, UV len)	239	encode_uint (enc_t *enc, int major, UV len)
181	{	240	{
182	need (enc, 9);	241	need (enc, 9);
183		242
184	if (len < 24)	243	if (ecb_expect_true (len < LENGTH_EXT1))
185	*enc->cur++ = major | len;	244	*enc->cur++ = major | len;
186	else if (len <= 0xff)	245	else if (ecb_expect_true (len <= 0xffU))
187	{	246	{
188	*enc->cur++ = major | 24;	247	*enc->cur++ = major | LENGTH_EXT1;
189	*enc->cur++ = len;	248	*enc->cur++ = len;
190	}	249	}
191	else if (len <= 0xffff)	250	else if (len <= 0xffffU)
192	{	251	{
193	*enc->cur++ = major | 25;	252	*enc->cur++ = major | LENGTH_EXT2;
194	*enc->cur++ = len >> 8;	253	*enc->cur++ = len >> 8;
195	*enc->cur++ = len;	254	*enc->cur++ = len;
196	}	255	}
197	else if (len <= 0xffffffff)	256	else if (len <= 0xffffffffU)
198	{	257	{
199	*enc->cur++ = major | 26;	258	*enc->cur++ = major | LENGTH_EXT4;
200	*enc->cur++ = len >> 24;	259	*enc->cur++ = len >> 24;
201	*enc->cur++ = len >> 16;	260	*enc->cur++ = len >> 16;
202	*enc->cur++ = len >> 8;	261	*enc->cur++ = len >> 8;
203	*enc->cur++ = len;	262	*enc->cur++ = len;
204	}	263	}
205	else	264	else
206	{	265	{
207	*enc->cur++ = major | 27;	266	*enc->cur++ = major | LENGTH_EXT8;
208	*enc->cur++ = len >> 56;	267	*enc->cur++ = len >> 56;
209	*enc->cur++ = len >> 48;	268	*enc->cur++ = len >> 48;
210	*enc->cur++ = len >> 40;	269	*enc->cur++ = len >> 40;
211	*enc->cur++ = len >> 32;	270	*enc->cur++ = len >> 32;
212	*enc->cur++ = len >> 24;	271	*enc->cur++ = len >> 24;
…		…
217	}	276	}
218		277
219	ecb_inline void	278	ecb_inline void
220	encode_tag (enc_t *enc, UV tag)	279	encode_tag (enc_t *enc, UV tag)
221	{	280	{
222	encode_uint (enc, 0xc0, tag);	281	encode_uint (enc, MAJOR_TAG, tag);
223	}	282	}
224		283
225	static void	284	// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded
		285	ecb_noinline static void
226	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)	286	encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len)
227	{	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	{
228	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_STRINGREF))	326	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
229	{	327	{
230	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);	328	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
231		329
232	if (SvOK (*svp))	330	if (SvOK (*svp))
233	{	331	{
234	// already registered, use stringref	332	// already registered, use stringref
235	encode_tag (enc, CBOR_TAG_STRINGREF);	333	encode_tag (enc, CBOR_TAG_STRINGREF);
236	encode_uint (enc, 0x00, SvUV (*svp));	334	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
237	return;	335	return;
238	}	336	}
239	else if (len >= minimum_string_length (enc->stringref_idx))	337	else if (len >= minimum_string_length (enc->stringref_idx))
240	{	338	{
241	// register only	339	// register only
242	sv_setuv (*svp, enc->stringref_idx);	340	sv_setuv (*svp, enc->stringref_idx);
243	++enc->stringref_idx;	341	++enc->stringref_idx;
244	}	342	}
245	}	343	}
246		344
247	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	345	encode_str (enc, upgrade_utf8, utf8, str, len);
248	need (enc, len);
249	memcpy (enc->cur, str, len);
250	enc->cur += len;
251	}	346	}
252		347
253	static void encode_sv (enc_t *enc, SV *sv);	348	static void encode_sv (enc_t *enc, SV *sv);
254		349
255	static void	350	static void
…		…
260	if (enc->depth >= enc->cbor.max_depth)	355	if (enc->depth >= enc->cbor.max_depth)
261	croak (ERR_NESTING_EXCEEDED);	356	croak (ERR_NESTING_EXCEEDED);
262		357
263	++enc->depth;	358	++enc->depth;
264		359
265	encode_uint (enc, 0x80, len + 1);	360	encode_uint (enc, MAJOR_ARRAY, len + 1);
266		361
		362	if (ecb_expect_false (SvMAGICAL (av)))
267	for (i = 0; i <= len; ++i)	363	for (i = 0; i <= len; ++i)
268	{	364	{
269	SV **svp = av_fetch (av, i, 0);	365	SV **svp = av_fetch (av, i, 0);
270	encode_sv (enc, svp ? *svp : &PL_sv_undef);	366	encode_sv (enc, svp ? *svp : &PL_sv_undef);
271	}	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	}
272		374
273	--enc->depth;	375	--enc->depth;
274	}	376	}
275		377
276	static void	378	static void
…		…
284	++enc->depth;	386	++enc->depth;
285		387
286	int pairs = hv_iterinit (hv);	388	int pairs = hv_iterinit (hv);
287	int mg = SvMAGICAL (hv);	389	int mg = SvMAGICAL (hv);
288		390
289	if (mg)	391	if (ecb_expect_false (mg))
290	encode_ch (enc, 0xa0 | 31);	392	encode_ch (enc, MAJOR_MAP | MINOR_INDEF);
291	else	393	else
292	encode_uint (enc, 0xa0, pairs);	394	encode_uint (enc, MAJOR_MAP, pairs);
293		395
294	while ((he = hv_iternext (hv)))	396	while ((he = hv_iternext (hv)))
295	{	397	{
296	if (HeKLEN (he) == HEf_SVKEY)	398	if (HeKLEN (he) == HEf_SVKEY)
297	encode_sv (enc, HeSVKEY (he));	399	encode_sv (enc, HeSVKEY (he));
298	else	400	else
299	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));
300		402
301	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));
302	}	404	}
303		405
304	if (mg)	406	if (ecb_expect_false (mg))
305	encode_ch (enc, 0xe0 | 31);	407	encode_ch (enc, MAJOR_MISC | MINOR_INDEF);
306		408
307	--enc->depth;	409	--enc->depth;
308	}	410	}
309		411
310	// encode objects, arrays and special \0=false and \1=true values.	412	// encode objects, arrays and special \0=false and \1=true values.
311	static void	413	static void
312	encode_rv (enc_t *enc, SV *sv)	414	encode_rv (enc_t *enc, SV *sv)
313	{	415	{
314	SvGETMAGIC (sv);	416	SvGETMAGIC (sv);
315
316	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)
317	&& ecb_expect_false (SvREFCNT (sv) > 1))
318	{
319	if (!enc->shareable)
320	enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
321
322	SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
323
324	if (SvOK (*svp))
325	{
326	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
327	encode_uint (enc, 0x00, SvUV (*svp));
328	return;
329	}
330	else
331	{
332	sv_setuv (*svp, enc->shareable_idx);
333	++enc->shareable_idx;
334	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
335	}
336	}
337		417
338	svtype svt = SvTYPE (sv);	418	svtype svt = SvTYPE (sv);
339		419
340	if (ecb_expect_false (SvOBJECT (sv)))	420	if (ecb_expect_false (SvOBJECT (sv)))
341	{	421	{
…		…
348	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	428	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
349	? cbor_tagged_stash	429	? cbor_tagged_stash
350	: gv_stashpv ("CBOR::XS::Tagged" , 1);	430	: gv_stashpv ("CBOR::XS::Tagged" , 1);
351		431
352	HV *stash = SvSTASH (sv);	432	HV *stash = SvSTASH (sv);
353	GV *method;
354		433
355	if (stash == boolean_stash)	434	if (stash == boolean_stash)
356	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	}
357	else if (stash == error_stash)	439	else if (stash == error_stash)
358	encode_ch (enc, 0xe0 | 23);	440	{
		441	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
		442	return;
		443	}
359	else if (stash == tagged_stash)	444	else if (stash == tagged_stash)
360	{	445	{
361	if (svt != SVt_PVAV)	446	if (svt != SVt_PVAV)
362	croak ("encountered CBOR::XS::Tagged object that isn't an array");	447	croak ("encountered CBOR::XS::Tagged object that isn't an array");
363		448
364	encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));	449	encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
365	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))
366	}	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))));
367	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	486	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
368	{	487	{
369	dSP;	488	dSP;
370		489
371	ENTER; SAVETMPS; PUSHMARK (SP);	490	ENTER; SAVETMPS;
		491	PUSHMARK (SP);
372	// 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
373	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	493	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
374		494
375	PUTBACK;	495	PUTBACK;
376	// G_SCALAR ensures that return value is 1	496	// G_SCALAR ensures that return value is 1
…		…
389	}	509	}
390	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	510	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
391	{	511	{
392	dSP;	512	dSP;
393		513
394	ENTER; SAVETMPS; PUSHMARK (SP);	514	ENTER; SAVETMPS;
		515	SAVESTACK_POS ();
		516	PUSHMARK (SP);
395	EXTEND (SP, 2);	517	EXTEND (SP, 2);
396	// 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
397	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	519	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
398	PUSHs (sv_cbor);	520	PUSHs (sv_cbor);
399		521
…		…
404	// catch this surprisingly common error	526	// catch this surprisingly common error
405	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	527	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
406	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));
407		529
408	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	530	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
409	encode_uint (enc, 0x80, count + 1);	531	encode_uint (enc, MAJOR_ARRAY, count + 1);
410	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	532	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
411		533
412	while (count)	534	while (count)
413	encode_sv (enc, SP[1 - count--]);	535	encode_sv (enc, SP[1 - count--]);
414		536
415	PUTBACK;	537	PUTBACK;
…		…
436	{	558	{
437	double nv = SvNVX (sv);	559	double nv = SvNVX (sv);
438		560
439	need (enc, 9);	561	need (enc, 9);
440		562
441	if (ecb_expect_false (nv == (U32)nv))	563	if (ecb_expect_false (nv == (NV)(U32)nv))
442	encode_uint (enc, 0x00, (U32)nv);	564	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
443	//TODO: maybe I32?	565	//TODO: maybe I32?
444	else if (ecb_expect_false (nv == (float)nv))	566	else if (ecb_expect_false (nv == (float)nv))
445	{	567	{
		568	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
		569
446	uint32_t fp = ecb_float_to_binary32 (nv);	570	uint32_t fp = ecb_float_to_binary32 (nv);
447
448	*enc->cur++ = 0xe0 | 26;
449		571
450	if (!ecb_big_endian ())	572	if (!ecb_big_endian ())
451	fp = ecb_bswap32 (fp);	573	fp = ecb_bswap32 (fp);
452		574
453	memcpy (enc->cur, &fp, 4);	575	memcpy (enc->cur, &fp, 4);
454	enc->cur += 4;	576	enc->cur += 4;
455	}	577	}
456	else	578	else
457	{	579	{
		580	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
		581
458	uint64_t fp = ecb_double_to_binary64 (nv);	582	uint64_t fp = ecb_double_to_binary64 (nv);
459
460	*enc->cur++ = 0xe0 | 27;
461		583
462	if (!ecb_big_endian ())	584	if (!ecb_big_endian ())
463	fp = ecb_bswap64 (fp);	585	fp = ecb_bswap64 (fp);
464		586
465	memcpy (enc->cur, &fp, 8);	587	memcpy (enc->cur, &fp, 8);
…		…
474		596
475	if (SvPOKp (sv))	597	if (SvPOKp (sv))
476	{	598	{
477	STRLEN len;	599	STRLEN len;
478	char *str = SvPV (sv, len);	600	char *str = SvPV (sv, len);
479	encode_str (enc, SvUTF8 (sv), str, len);	601	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
480	}	602	}
481	else if (SvNOKp (sv))	603	else if (SvNOKp (sv))
482	encode_nv (enc, sv);	604	encode_nv (enc, sv);
483	else if (SvIOKp (sv))	605	else if (SvIOKp (sv))
484	{	606	{
485	if (SvIsUV (sv))	607	if (SvIsUV (sv))
486	encode_uint (enc, 0x00, SvUVX (sv));	608	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
487	else if (SvIVX (sv) >= 0)	609	else if (SvIVX (sv) >= 0)
488	encode_uint (enc, 0x00, SvIVX (sv));	610	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
489	else	611	else
490	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	612	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
491	}	613	}
492	else if (SvROK (sv))	614	else if (SvROK (sv))
493	encode_rv (enc, SvRV (sv));	615	encode_rv (enc, SvRV (sv));
494	else if (!SvOK (sv))	616	else if (!SvOK (sv))
495	encode_ch (enc, 0xe0 | 22);	617	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
496	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	618	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
497	encode_ch (enc, 0xe0 | 23);	619	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
498	else	620	else
499	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",
500	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	622	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
501	}	623	}
502		624
503	static SV *	625	static SV *
504	encode_cbor (SV *scalar, CBOR *cbor)	626	encode_cbor (SV *scalar, CBOR *cbor)
505	{	627	{
506	enc_t enc = { };	628	enc_t enc = { 0 };
507		629
508	enc.cbor = *cbor;	630	enc.cbor = *cbor;
509	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	631	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
510	enc.cur = SvPVX (enc.sv);	632	enc.cur = SvPVX (enc.sv);
511	enc.end = SvEND (enc.sv);	633	enc.end = SvEND (enc.sv);
512		634
513	SvPOK_only (enc.sv);	635	SvPOK_only (enc.sv);
514		636
515	if (cbor->flags & F_ALLOW_STRINGREF)	637	if (cbor->flags & F_PACK_STRINGS)
516	{	638	{
517	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	639	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
518	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());	640	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
519	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());	641	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
520	}	642	}
…		…
542	CBOR cbor;	664	CBOR cbor;
543	U32 depth; // recursion depth	665	U32 depth; // recursion depth
544	U32 maxdepth; // recursion depth limit	666	U32 maxdepth; // recursion depth limit
545	AV *shareable;	667	AV *shareable;
546	AV *stringref;	668	AV *stringref;
		669	SV *decode_tagged;
		670	SV *err_sv; // optional sv for error, needs to be freed
547	} dec_t;	671	} dec_t;
548		672
549	#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);
550		680
551	#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;
552		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
553	#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)
554	#define DEC_DEC_DEPTH --dec->depth	710	#define DEC_DEC_DEPTH --dec->depth
555		711
556	static UV	712	static UV
557	decode_uint (dec_t *dec)	713	decode_uint (dec_t *dec)
558	{	714	{
559	switch (*dec->cur & 31)	715	U8 m = *dec->cur & MINOR_MASK;
560	{	716	++dec->cur;
561	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
562	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
563	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
564	return *dec->cur++ & 31;
565		717
566	case 24:	718	if (ecb_expect_true (m < LENGTH_EXT1))
		719	return m;
		720	else if (ecb_expect_true (m == LENGTH_EXT1))
		721	{
567	WANT (2);	722	WANT (1);
568	dec->cur += 2;	723	dec->cur += 1;
569	return dec->cur[-1];	724	return dec->cur[-1];
570		725	}
571	case 25:	726	else if (ecb_expect_true (m == LENGTH_EXT2))
		727	{
572	WANT (3);	728	WANT (2);
573	dec->cur += 3;	729	dec->cur += 2;
574	return (((UV)dec->cur[-2]) << 8)	730	return (((UV)dec->cur[-2]) << 8)
575	| ((UV)dec->cur[-1]);	731	| ((UV)dec->cur[-1]);
576		732	}
577	case 26:	733	else if (ecb_expect_true (m == LENGTH_EXT4))
		734	{
578	WANT (5);	735	WANT (4);
579	dec->cur += 5;	736	dec->cur += 4;
580	return (((UV)dec->cur[-4]) << 24)	737	return (((UV)dec->cur[-4]) << 24)
581	| (((UV)dec->cur[-3]) << 16)	738	| (((UV)dec->cur[-3]) << 16)
582	| (((UV)dec->cur[-2]) << 8)	739	| (((UV)dec->cur[-2]) << 8)
583	| ((UV)dec->cur[-1]);	740	| ((UV)dec->cur[-1]);
584		741	}
585	case 27:	742	else if (ecb_expect_true (m == LENGTH_EXT8))
		743	{
586	WANT (9);	744	WANT (8);
587	dec->cur += 9;	745	dec->cur += 8;
		746
		747	return
		748	#if UVSIZE < 8
		749	0
		750	#else
588	return (((UV)dec->cur[-8]) << 56)	751	(((UV)dec->cur[-8]) << 56)
589	| (((UV)dec->cur[-7]) << 48)	752	| (((UV)dec->cur[-7]) << 48)
590	| (((UV)dec->cur[-6]) << 40)	753	| (((UV)dec->cur[-6]) << 40)
591	| (((UV)dec->cur[-5]) << 32)	754	| (((UV)dec->cur[-5]) << 32)
		755	#endif
592	| (((UV)dec->cur[-4]) << 24)	756	| (((UV)dec->cur[-4]) << 24)
593	| (((UV)dec->cur[-3]) << 16)	757	| (((UV)dec->cur[-3]) << 16)
594	| (((UV)dec->cur[-2]) << 8)	758	| (((UV)dec->cur[-2]) << 8)
595	| ((UV)dec->cur[-1]);	759	| ((UV)dec->cur[-1]);
596		760	}
597	default:	761	else
598	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	762	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
599	}
600		763
601	fail:	764	fail:
602	return 0;	765	return 0;
603	}	766	}
604		767
…		…
609	{	772	{
610	AV *av = newAV ();	773	AV *av = newAV ();
611		774
612	DEC_INC_DEPTH;	775	DEC_INC_DEPTH;
613		776
614	if ((*dec->cur & 31) == 31)	777	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
615	{	778	{
616	++dec->cur;	779	++dec->cur;
617		780
618	for (;;)	781	for (;;)
619	{	782	{
620	WANT (1);	783	WANT (1);
621		784
622	if (*dec->cur == (0xe0 | 31))	785	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
623	{	786	{
624	++dec->cur;	787	++dec->cur;
625	break;	788	break;
626	}	789	}
627		790
628	av_push (av, decode_sv (dec));	791	av_push (av, decode_sv (dec));
629	}	792	}
630	}	793	}
631	else	794	else
632	{	795	{
633	int i, len = decode_uint (dec);	796	UV i, len = decode_uint (dec);
634		797
		798	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
635	av_fill (av, len - 1);	799	av_fill (av, len - 1);
636		800
637	for (i = 0; i < len; ++i)	801	for (i = 0; i < len; ++i)
638	AvARRAY (av)[i] = decode_sv (dec);	802	AvARRAY (av)[i] = decode_sv (dec);
639	}	803	}
640		804
641	DEC_DEC_DEPTH;	805	DEC_DEC_DEPTH;
642	return newRV_noinc ((SV *)av);	806	return newRV_noinc ((SV *)av);
643		807
644	fail:	808	fail:
645	SvREFCNT_dec (av);	809	SvREFCNT_dec_NN (av);
646	DEC_DEC_DEPTH;	810	DEC_DEC_DEPTH;
647	return &PL_sv_undef;	811	return &PL_sv_undef;
648	}	812	}
649		813
650	static void	814	static void
…		…
652	{	816	{
653	// for speed reasons, we specialcase single-string	817	// for speed reasons, we specialcase single-string
654	// byte or utf-8 strings as keys, but only when !stringref	818	// byte or utf-8 strings as keys, but only when !stringref
655		819
656	if (ecb_expect_true (!dec->stringref))	820	if (ecb_expect_true (!dec->stringref))
657	if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27)	821	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
658	{	822	{
659	I32 len = decode_uint (dec);	823	STRLEN len = decode_uint (dec);
660	char *key = (char *)dec->cur;	824	char *key = (char *)dec->cur;
661		825
		826	WANT (len);
662	dec->cur += len;	827	dec->cur += len;
663		828
664	if (ecb_expect_false (dec->stringref))
665	av_push (dec->stringref, newSVpvn (key, len));
666
667	hv_store (hv, key, len, decode_sv (dec), 0);	829	hv_store (hv, key, len, decode_sv (dec), 0);
668		830
669	return;	831	return;
670	}	832	}
671	else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27)	833	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
672	{	834	{
673	I32 len = decode_uint (dec);	835	STRLEN len = decode_uint (dec);
674	char *key = (char *)dec->cur;	836	char *key = (char *)dec->cur;
675		837
		838	WANT (len);
676	dec->cur += len;	839	dec->cur += len;
677		840
678	if (ecb_expect_false (dec->stringref))	841	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
679	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)");
680		844
681	hv_store (hv, key, -len, decode_sv (dec), 0);	845	hv_store (hv, key, -len, decode_sv (dec), 0);
682		846
683	return;	847	return;
684	}	848	}
685		849
686	SV *k = decode_sv (dec);	850	SV *k = decode_sv (dec);
687	SV *v = decode_sv (dec);	851	SV *v = decode_sv (dec);
688		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
689	hv_store_ent (hv, k, v, 0);	881	hv_store_ent (hv, k, v, 0);
690	SvREFCNT_dec (k);	882	SvREFCNT_dec_NN (k);
		883
		884	fail:
		885	;
691	}	886	}
692		887
693	static SV *	888	static SV *
694	decode_hv (dec_t *dec)	889	decode_hv (dec_t *dec)
695	{	890	{
696	HV *hv = newHV ();	891	HV *hv = newHV ();
697		892
698	DEC_INC_DEPTH;	893	DEC_INC_DEPTH;
699		894
700	if ((*dec->cur & 31) == 31)	895	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
701	{	896	{
702	++dec->cur;	897	++dec->cur;
703		898
704	for (;;)	899	for (;;)
705	{	900	{
706	WANT (1);	901	WANT (1);
707		902
708	if (*dec->cur == (0xe0 | 31))	903	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
709	{	904	{
710	++dec->cur;	905	++dec->cur;
711	break;	906	break;
712	}	907	}
713		908
714	decode_he (dec, hv);	909	decode_he (dec, hv);
715	}	910	}
716	}	911	}
717	else	912	else
718	{	913	{
719	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
720		917
721	while (pairs--)	918	while (pairs--)
722	decode_he (dec, hv);	919	decode_he (dec, hv);
723	}	920	}
724		921
725	DEC_DEC_DEPTH;	922	DEC_DEC_DEPTH;
726	return newRV_noinc ((SV *)hv);	923	return newRV_noinc ((SV *)hv);
727		924
728	fail:	925	fail:
729	SvREFCNT_dec (hv);	926	SvREFCNT_dec_NN (hv);
730	DEC_DEC_DEPTH;	927	DEC_DEC_DEPTH;
731	return &PL_sv_undef;	928	return &PL_sv_undef;
732	}	929	}
733		930
734	static SV *	931	static SV *
735	decode_str (dec_t *dec, int utf8)	932	decode_str (dec_t *dec, int utf8)
736	{	933	{
737	SV *sv = 0;	934	SV *sv = 0;
738		935
739	if ((*dec->cur & 31) == 31)	936	if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF))
740	{	937	{
		938	// indefinite length strings
741	++dec->cur;	939	++dec->cur;
742		940
		941	U8 major = *dec->cur & MAJOR_MISC;
		942
743	sv = newSVpvn ("", 0);	943	sv = newSVpvn ("", 0);
744		944
745	// not very fast, and certainly not robust against illegal input
746	for (;;)	945	for (;;)
747	{	946	{
748	WANT (1);	947	WANT (1);
749		948
750	if (*dec->cur == (0xe0 | 31))	949	if ((*dec->cur - major) > LENGTH_EXT8)
		950	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
751	{	951	{
752	++dec->cur;	952	++dec->cur;
753	break;	953	break;
754	}	954	}
		955	else
		956	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
755		957
756	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;
757	}	963	}
758	}	964	}
759	else	965	else
760	{	966	{
761	STRLEN len = decode_uint (dec);	967	STRLEN len = decode_uint (dec);
…		…
768	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))	974	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
769	av_push (dec->stringref, SvREFCNT_inc_NN (sv));	975	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
770	}	976	}
771		977
772	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
773	SvUTF8_on (sv);	984	SvUTF8_on (sv);
		985	}
774		986
775	return sv;	987	return sv;
776		988
777	fail:	989	fail:
778	SvREFCNT_dec (sv);	990	SvREFCNT_dec (sv);
…		…
797	sv = newRV_noinc (decode_sv (dec));	1009	sv = newRV_noinc (decode_sv (dec));
798	break;	1010	break;
799		1011
800	case CBOR_TAG_STRINGREF_NAMESPACE:	1012	case CBOR_TAG_STRINGREF_NAMESPACE:
801	{	1013	{
		1014	// do not use SAVETMPS/FREETMPS, as these will
		1015	// erase mortalised caches, e.g. "shareable"
802	ENTER; SAVETMPS;	1016	ENTER;
803		1017
804	SAVESPTR (dec->stringref);	1018	SAVESPTR (dec->stringref);
805	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());	1019	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
806		1020
807	sv = decode_sv (dec);	1021	sv = decode_sv (dec);
808		1022
809	FREETMPS; LEAVE;	1023	LEAVE;
810	}	1024	}
811	break;	1025	break;
812		1026
813	case CBOR_TAG_STRINGREF:	1027	case CBOR_TAG_STRINGREF:
814	{	1028	{
815	if ((*dec->cur >> 5) != 0)	1029	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
816	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	1030	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
817		1031
818	UV idx = decode_uint (dec);	1032	UV idx = decode_uint (dec);
819		1033
820	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))	1034	if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref)))
821	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)");
822		1036
823	sv = newSVsv (AvARRAY (dec->stringref)[idx]);	1037	sv = newSVsv (AvARRAY (dec->stringref)[idx]);
824	}	1038	}
825	break;	1039	break;
…		…
827	case CBOR_TAG_VALUE_SHAREABLE:	1041	case CBOR_TAG_VALUE_SHAREABLE:
828	{	1042	{
829	if (ecb_expect_false (!dec->shareable))	1043	if (ecb_expect_false (!dec->shareable))
830	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());	1044	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
831		1045
		1046	if (dec->cbor.flags & F_ALLOW_CYCLES)
		1047	{
832	sv = newSV (0);	1048	sv = newSV (0);
833	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	1049	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
834		1050
835	SV *osv = decode_sv (dec);	1051	SV *osv = decode_sv (dec);
836	sv_setsv (sv, osv);	1052	sv_setsv (sv, osv);
837	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	}
838	}	1062	}
839	break;	1063	break;
840		1064
841	case CBOR_TAG_VALUE_SHAREDREF:	1065	case CBOR_TAG_VALUE_SHAREDREF:
842	{	1066	{
843	if ((*dec->cur >> 5) != 0)	1067	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
844	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	1068	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
845		1069
846	UV idx = decode_uint (dec);	1070	UV idx = decode_uint (dec);
847		1071
848	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))	1072	if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable)))
849	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1073	ERR ("corrupted CBOR data (sharedref index out of bounds)");
850		1074
851	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");
852	}	1079	}
853	break;	1080	break;
854		1081
855	case CBOR_TAG_PERL_OBJECT:	1082	case CBOR_TAG_PERL_OBJECT:
856	{	1083	{
		1084	if (dec->cbor.flags & F_FORBID_OBJECTS)
		1085	goto filter;
		1086
857	sv = decode_sv (dec);	1087	sv = decode_sv (dec);
858		1088
859	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1089	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
860	ERR ("corrupted CBOR data (non-array perl object)");	1090	ERR ("corrupted CBOR data (non-array perl object)");
861		1091
…		…
871	if (!method)	1101	if (!method)
872	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)");
873		1103
874	dSP;	1104	dSP;
875		1105
876	ENTER; SAVETMPS; PUSHMARK (SP);	1106	ENTER; SAVETMPS;
		1107	PUSHMARK (SP);
877	EXTEND (SP, len + 1);	1108	EXTEND (SP, len + 1);
878	// 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
879	PUSHs (*av_fetch (av, 0, 1));	1110	PUSHs (*av_fetch (av, 0, 1));
880	PUSHs (sv_cbor);	1111	PUSHs (sv_cbor);
881		1112
…		…
889	SPAGAIN;	1120	SPAGAIN;
890		1121
891	if (SvTRUE (ERRSV))	1122	if (SvTRUE (ERRSV))
892	{	1123	{
893	FREETMPS; LEAVE;	1124	FREETMPS; LEAVE;
894	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1125	ERR_ERRSV;
895	}	1126	}
896		1127
897	SvREFCNT_dec (sv);	1128	SvREFCNT_dec_NN (sv);
898	sv = SvREFCNT_inc (POPs);	1129	sv = SvREFCNT_inc (POPs);
899		1130
900	PUTBACK;	1131	PUTBACK;
901		1132
902	FREETMPS; LEAVE;	1133	FREETMPS; LEAVE;
903	}	1134	}
904	break;	1135	break;
905		1136
906	default:	1137	default:
		1138	filter:
907	{	1139	{
		1140	SV *tag_sv = newSVuv (tag);
		1141
908	sv = decode_sv (dec);	1142	sv = decode_sv (dec);
909		1143
		1144	dSP;
		1145	ENTER; SAVETMPS;
		1146	SAVESTACK_POS ();
		1147	PUSHMARK (SP);
		1148	EXTEND (SP, 2);
		1149	PUSHs (tag_sv);
		1150	PUSHs (sv);
		1151
		1152	PUTBACK;
		1153	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);
		1154	SPAGAIN;
		1155
		1156	if (SvTRUE (ERRSV))
		1157	{
		1158	SvREFCNT_dec_NN (tag_sv);
		1159	FREETMPS; LEAVE;
		1160	ERR_ERRSV;
		1161	}
		1162
		1163	if (count)
		1164	{
		1165	SvREFCNT_dec_NN (tag_sv);
		1166	SvREFCNT_dec_NN (sv);
		1167	sv = SvREFCNT_inc_NN (POPs);
		1168	}
		1169	else
		1170	{
910	AV *av = newAV ();	1171	AV *av = newAV ();
911	av_push (av, newSVuv (tag));	1172	av_push (av, tag_sv);
912	av_push (av, sv);	1173	av_push (av, sv);
913		1174
914	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1175	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
915	? cbor_tagged_stash	1176	? cbor_tagged_stash
916	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1177	: gv_stashpv ("CBOR::XS::Tagged" , 1);
917
918	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1178	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
		1179	}
		1180
		1181	PUTBACK;
		1182
		1183	FREETMPS; LEAVE;
919	}	1184	}
920	break;	1185	break;
921	}	1186	}
922		1187
923	return sv;	1188	return sv;
…		…
930	static SV *	1195	static SV *
931	decode_sv (dec_t *dec)	1196	decode_sv (dec_t *dec)
932	{	1197	{
933	WANT (1);	1198	WANT (1);
934		1199
935	switch (*dec->cur >> 5)	1200	switch (*dec->cur >> MAJOR_SHIFT)
936	{	1201	{
937	case 0: // unsigned int	1202	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
938	return newSVuv (decode_uint (dec));	1203	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
939	case 1: // negative int	1204	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
940	return newSViv (-1 - (IV)decode_uint (dec));	1205	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
941	case 2: // octet string	1206	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
942	return decode_str (dec, 0);	1207	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
943	case 3: // utf-8 string	1208	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
944	return decode_str (dec, 1);	1209
945	case 4: // array	1210	case MAJOR_MISC >> MAJOR_SHIFT:
946	return decode_av (dec);
947	case 5: // map
948	return decode_hv (dec);
949	case 6: // tag
950	return decode_tagged (dec);
951	case 7: // misc
952	switch (*dec->cur++ & 31)	1211	switch (*dec->cur++ & MINOR_MASK)
953	{	1212	{
954	case 20:	1213	case SIMPLE_FALSE:
955	#if CBOR_SLOW	1214	#if CBOR_SLOW
956	types_false = get_bool ("Types::Serialiser::false");	1215	types_false = get_bool ("Types::Serialiser::false");
957	#endif	1216	#endif
958	return newSVsv (types_false);	1217	return newSVsv (types_false);
959	case 21:	1218	case SIMPLE_TRUE:
960	#if CBOR_SLOW	1219	#if CBOR_SLOW
961	types_true = get_bool ("Types::Serialiser::true");	1220	types_true = get_bool ("Types::Serialiser::true");
962	#endif	1221	#endif
963	return newSVsv (types_true);	1222	return newSVsv (types_true);
964	case 22:	1223	case SIMPLE_NULL:
965	return newSVsv (&PL_sv_undef);	1224	return newSVsv (&PL_sv_undef);
966	case 23:	1225	case SIMPLE_UNDEF:
967	#if CBOR_SLOW	1226	#if CBOR_SLOW
968	types_error = get_bool ("Types::Serialiser::error");	1227	types_error = get_bool ("Types::Serialiser::error");
969	#endif	1228	#endif
970	return newSVsv (types_error);	1229	return newSVsv (types_error);
971		1230
972	case 25:	1231	case MISC_FLOAT16:
973	{	1232	{
974	WANT (2);	1233	WANT (2);
975		1234
976	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1235	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
977	dec->cur += 2;	1236	dec->cur += 2;
978		1237
979	return newSVnv (ecb_binary16_to_float (fp));	1238	return newSVnv (ecb_binary16_to_float (fp));
980	}	1239	}
981		1240
982	case 26:	1241	case MISC_FLOAT32:
983	{	1242	{
984	uint32_t fp;	1243	uint32_t fp;
985	WANT (4);	1244	WANT (4);
986	memcpy (&fp, dec->cur, 4);	1245	memcpy (&fp, dec->cur, 4);
987	dec->cur += 4;	1246	dec->cur += 4;
…		…
990	fp = ecb_bswap32 (fp);	1249	fp = ecb_bswap32 (fp);
991		1250
992	return newSVnv (ecb_binary32_to_float (fp));	1251	return newSVnv (ecb_binary32_to_float (fp));
993	}	1252	}
994		1253
995	case 27:	1254	case MISC_FLOAT64:
996	{	1255	{
997	uint64_t fp;	1256	uint64_t fp;
998	WANT (8);	1257	WANT (8);
999	memcpy (&fp, dec->cur, 8);	1258	memcpy (&fp, dec->cur, 8);
1000	dec->cur += 8;	1259	dec->cur += 8;
…		…
1003	fp = ecb_bswap64 (fp);	1262	fp = ecb_bswap64 (fp);
1004		1263
1005	return newSVnv (ecb_binary64_to_double (fp));	1264	return newSVnv (ecb_binary64_to_double (fp));
1006	}	1265	}
1007		1266
1008	// 0..19 unassigned	1267	// 0..19 unassigned simple
1009	// 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
1010	default:	1271	default:
1011	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1272	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1012	}	1273	}
1013		1274
1014	break;	1275	break;
1015	}	1276	}
1016		1277
…		…
1019	}	1280	}
1020		1281
1021	static SV *	1282	static SV *
1022	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1283	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
1023	{	1284	{
1024	dec_t dec = { };	1285	dec_t dec = { 0 };
1025	SV *sv;	1286	SV *sv;
1026	STRLEN len;	1287	STRLEN len;
1027	char *data = SvPVbyte (string, len);	1288	char *data = SvPVbyte (string, len);
1028		1289
1029	if (len > cbor->max_size && cbor->max_size)	1290	if (len > cbor->max_size && cbor->max_size)
…		…
1043	if (dec.cur != dec.end && !dec.err)	1304	if (dec.cur != dec.end && !dec.err)
1044	dec.err = "garbage after CBOR object";	1305	dec.err = "garbage after CBOR object";
1045		1306
1046	if (dec.err)	1307	if (dec.err)
1047	{	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
1048	SvREFCNT_dec (sv);	1320	SvREFCNT_dec_NN (sv);
		1321
		1322	if (dec.err_sv)
		1323	sv_2mortal (dec.err_sv);
		1324
1049	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);
1050	}	1326	}
1051		1327
1052	sv = sv_2mortal (sv);	1328	sv = sv_2mortal (sv);
1053		1329
1054	return sv;	1330	return sv;
1055	}	1331	}
1056		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
1057	/////////////////////////////////////////////////////////////////////////////	1457	/////////////////////////////////////////////////////////////////////////////
1058	// XS interface functions	1458	// XS interface functions
1059		1459
1060	MODULE = CBOR::XS PACKAGE = CBOR::XS	1460	MODULE = CBOR::XS PACKAGE = CBOR::XS
1061		1461
…		…
1069		1469
1070	types_true = get_bool ("Types::Serialiser::true" );	1470	types_true = get_bool ("Types::Serialiser::true" );
1071	types_false = get_bool ("Types::Serialiser::false");	1471	types_false = get_bool ("Types::Serialiser::false");
1072	types_error = get_bool ("Types::Serialiser::error");	1472	types_error = get_bool ("Types::Serialiser::error");
1073		1473
		1474	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
		1475
1074	sv_cbor = newSVpv ("CBOR", 0);	1476	sv_cbor = newSVpv ("CBOR", 0);
1075	SvREADONLY_on (sv_cbor);	1477	SvREADONLY_on (sv_cbor);
		1478
		1479	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1076	}	1480	}
1077		1481
1078	PROTOTYPES: DISABLE	1482	PROTOTYPES: DISABLE
1079		1483
1080	void CLONE (...)	1484	void CLONE (...)
…		…
1099	void shrink (CBOR *self, int enable = 1)	1503	void shrink (CBOR *self, int enable = 1)
1100	ALIAS:	1504	ALIAS:
1101	shrink = F_SHRINK	1505	shrink = F_SHRINK
1102	allow_unknown = F_ALLOW_UNKNOWN	1506	allow_unknown = F_ALLOW_UNKNOWN
1103	allow_sharing = F_ALLOW_SHARING	1507	allow_sharing = F_ALLOW_SHARING
1104	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
1105	PPCODE:	1514	PPCODE:
1106	{	1515	{
1107	if (enable)	1516	if (enable)
1108	self->flags |= ix;	1517	self->flags |= ix;
1109	else	1518	else
…		…
1115	void get_shrink (CBOR *self)	1524	void get_shrink (CBOR *self)
1116	ALIAS:	1525	ALIAS:
1117	get_shrink = F_SHRINK	1526	get_shrink = F_SHRINK
1118	get_allow_unknown = F_ALLOW_UNKNOWN	1527	get_allow_unknown = F_ALLOW_UNKNOWN
1119	get_allow_sharing = F_ALLOW_SHARING	1528	get_allow_sharing = F_ALLOW_SHARING
1120	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
1121	PPCODE:	1535	PPCODE:
1122	XPUSHs (boolSV (self->flags & ix));	1536	XPUSHs (boolSV (self->flags & ix));
1123		1537
1124	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1538	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1125	PPCODE:	1539	PPCODE:
…		…
1138	XPUSHs (ST (0));	1552	XPUSHs (ST (0));
1139		1553
1140	int get_max_size (CBOR *self)	1554	int get_max_size (CBOR *self)
1141	CODE:	1555	CODE:
1142	RETVAL = self->max_size;	1556	RETVAL = self->max_size;
		1557	OUTPUT:
		1558	RETVAL
		1559
		1560	void filter (CBOR *self, SV *filter = 0)
		1561	PPCODE:
		1562	SvREFCNT_dec (self->filter);
		1563	self->filter = filter ? newSVsv (filter) : filter;
		1564	XPUSHs (ST (0));
		1565
		1566	SV *get_filter (CBOR *self)
		1567	CODE:
		1568	RETVAL = self->filter ? self->filter : NEWSV (0, 0);
1143	OUTPUT:	1569	OUTPUT:
1144	RETVAL	1570	RETVAL
1145		1571
1146	void encode (CBOR *self, SV *scalar)	1572	void encode (CBOR *self, SV *scalar)
1147	PPCODE:	1573	PPCODE:
…		…
1162	EXTEND (SP, 2);	1588	EXTEND (SP, 2);
1163	PUSHs (sv);	1589	PUSHs (sv);
1164	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1590	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1165	}	1591	}
1166		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
		1645	void DESTROY (CBOR *self)
		1646	PPCODE:
		1647	cbor_free (self);
		1648
1167	PROTOTYPES: ENABLE	1649	PROTOTYPES: ENABLE
1168		1650
1169	void encode_cbor (SV *scalar)	1651	void encode_cbor (SV *scalar)
		1652	ALIAS:
		1653	encode_cbor = 0
		1654	encode_cbor_sharing = F_ALLOW_SHARING
1170	PPCODE:	1655	PPCODE:
1171	{	1656	{
1172	CBOR cbor;	1657	CBOR cbor;
1173	cbor_init (&cbor);	1658	cbor_init (&cbor);
		1659	cbor.flags |= ix;
1174	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1660	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1175	XPUSHs (scalar);	1661	XPUSHs (scalar);
1176	}	1662	}
1177		1663
1178	void decode_cbor (SV *cborstr)	1664	void decode_cbor (SV *cborstr)
…		…
1182	cbor_init (&cbor);	1668	cbor_init (&cbor);
1183	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;	1669	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;
1184	XPUSHs (cborstr);	1670	XPUSHs (cborstr);
1185	}	1671	}
1186		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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