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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.18 by root, Wed Nov 20 01:09:46 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_SHARABLE = 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
		107	#define F_ALLOW_CYCLES 0x00000008UL
		108	#define F_FORBID_OBJECTS 0x00000010UL
62	#define F_DEDUP_STRINGS 0x00000008UL //TODO	109	#define F_PACK_STRINGS 0x00000020UL
63	#define F_DEDUP_KEYS 0x00000010UL //TODO	110	#define F_TEXT_KEYS 0x00000040UL
		111	#define F_TEXT_STRINGS 0x00000080UL
		112	#define F_VALIDATE_UTF8 0x00000100UL
64		113
65	#define INIT_SIZE 32 // initial scalar size to be allocated	114	#define INIT_SIZE 32 // initial scalar size to be allocated
66		115
67	#define SB do {	116	#define SB do {
68	#define SE } while (0)	117	#define SE } while (0)
…		…
80	# define CBOR_SLOW 0	129	# define CBOR_SLOW 0
81	# define CBOR_STASH cbor_stash	130	# define CBOR_STASH cbor_stash
82	#endif	131	#endif
83		132
84	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::
85	static SV *types_true, *types_false, *types_error, *sv_cbor;	134	static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter;
86		135
87	typedef struct {	136	typedef struct {
88	U32 flags;	137	U32 flags;
89	U32 max_depth;	138	U32 max_depth;
90	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.
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	{
96	Zero (cbor, 1, CBOR);	151	Zero (cbor, 1, CBOR);
97	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);
98	}	160	}
99		161
100	/////////////////////////////////////////////////////////////////////////////	162	/////////////////////////////////////////////////////////////////////////////
101	// utility functions	163	// utility functions
102		164
…		…
124	SvPV_renew (sv, SvCUR (sv) + 1);	186	SvPV_renew (sv, SvCUR (sv) + 1);
125	#endif	187	#endif
126	}	188	}
127	}	189	}
128		190
		191	// minimum length of a string to be registered for stringref
		192	ecb_inline int
		193	minimum_string_length (UV idx)
		194	{
		195	return idx <= 23 ? 3
		196	: idx <= 0xffU ? 4
		197	: idx <= 0xffffU ? 5
		198	: idx <= 0xffffffffU ? 7
		199	: 11;
		200	}
		201
129	/////////////////////////////////////////////////////////////////////////////	202	/////////////////////////////////////////////////////////////////////////////
130	// encoder	203	// encoder
131		204
132	// structure used for encoding CBOR	205	// structure used for encoding CBOR
133	typedef struct	206	typedef struct
…		…
135	char *cur; // SvPVX (sv) + current output position	208	char *cur; // SvPVX (sv) + current output position
136	char *end; // SvEND (sv)	209	char *end; // SvEND (sv)
137	SV *sv; // result scalar	210	SV *sv; // result scalar
138	CBOR cbor;	211	CBOR cbor;
139	U32 depth; // recursion level	212	U32 depth; // recursion level
140	HV *stringref; // string => index, or 0	213	HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8)
		214	UV stringref_idx;
141	HV *sharable; // ptr => index, or 0	215	HV *shareable; // ptr => index, or 0
142	HV *sharable_idx;	216	UV shareable_idx;
143	} enc_t;	217	} enc_t;
144		218
145	ecb_inline void	219	ecb_inline void
146	need (enc_t *enc, STRLEN len)	220	need (enc_t *enc, STRLEN len)
147	{	221	{
148	if (ecb_expect_false (enc->cur + len >= enc->end))	222	if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len))
149	{	223	{
150	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);	224	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
151	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	225	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
152	enc->cur = SvPVX (enc->sv) + cur;	226	enc->cur = SvPVX (enc->sv) + cur;
153	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	227	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
…		…
164	static void	238	static void
165	encode_uint (enc_t *enc, int major, UV len)	239	encode_uint (enc_t *enc, int major, UV len)
166	{	240	{
167	need (enc, 9);	241	need (enc, 9);
168		242
169	if (len < 24)	243	if (ecb_expect_true (len < LENGTH_EXT1))
170	*enc->cur++ = major | len;	244	*enc->cur++ = major | len;
171	else if (len <= 0xff)	245	else if (ecb_expect_true (len <= 0xffU))
172	{	246	{
173	*enc->cur++ = major | 24;	247	*enc->cur++ = major | LENGTH_EXT1;
174	*enc->cur++ = len;	248	*enc->cur++ = len;
175	}	249	}
176	else if (len <= 0xffff)	250	else if (len <= 0xffffU)
177	{	251	{
178	*enc->cur++ = major | 25;	252	*enc->cur++ = major | LENGTH_EXT2;
179	*enc->cur++ = len >> 8;	253	*enc->cur++ = len >> 8;
180	*enc->cur++ = len;	254	*enc->cur++ = len;
181	}	255	}
182	else if (len <= 0xffffffff)	256	else if (len <= 0xffffffffU)
183	{	257	{
184	*enc->cur++ = major | 26;	258	*enc->cur++ = major | LENGTH_EXT4;
185	*enc->cur++ = len >> 24;	259	*enc->cur++ = len >> 24;
186	*enc->cur++ = len >> 16;	260	*enc->cur++ = len >> 16;
187	*enc->cur++ = len >> 8;	261	*enc->cur++ = len >> 8;
188	*enc->cur++ = len;	262	*enc->cur++ = len;
189	}	263	}
190	else	264	else
191	{	265	{
192	*enc->cur++ = major | 27;	266	*enc->cur++ = major | LENGTH_EXT8;
193	*enc->cur++ = len >> 56;	267	*enc->cur++ = len >> 56;
194	*enc->cur++ = len >> 48;	268	*enc->cur++ = len >> 48;
195	*enc->cur++ = len >> 40;	269	*enc->cur++ = len >> 40;
196	*enc->cur++ = len >> 32;	270	*enc->cur++ = len >> 32;
197	*enc->cur++ = len >> 24;	271	*enc->cur++ = len >> 24;
…		…
199	*enc->cur++ = len >> 8;	273	*enc->cur++ = len >> 8;
200	*enc->cur++ = len;	274	*enc->cur++ = len;
201	}	275	}
202	}	276	}
203		277
204	static void	278	ecb_inline void
		279	encode_tag (enc_t *enc, UV tag)
		280	{
		281	encode_uint (enc, MAJOR_TAG, tag);
		282	}
		283
		284	// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded
		285	ecb_noinline static void
205	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)	286	encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len)
206	{	287	{
207	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	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);
208	need (enc, len);	318	need (enc, len);
209	memcpy (enc->cur, str, len);	319	memcpy (enc->cur, str, len);
210	enc->cur += len;	320	enc->cur += len;
211	}	321	}
212		322
213	ecb_inline void	323	ecb_inline void
214	encode_tag (enc_t *enc, UV tag)	324	encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
215	{	325	{
216	encode_uint (enc, 0xc0, tag);	326	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
217	}	327	{
		328	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
218		329
219	static int
220	encode_sharable2 (enc_t *enc, SV *sv)
221	{
222	if (!enc->sharable)
223	enc->sharable = (HV *)sv_2mortal ((SV *)newHV ());
224
225	SV **svp = hv_fetch (enc->sharable, &sv, sizeof (sv), 1);
226
227	if (SvOK (*svp))	330	if (SvOK (*svp))
228	{	331	{
		332	// already registered, use stringref
229	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);	333	encode_tag (enc, CBOR_TAG_STRINGREF);
230	encode_uint (enc, 0x00, SvUV (*svp));	334	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
231
232	return 1;	335	return;
233	}	336	}
234	else	337	else if (len >= minimum_string_length (enc->stringref_idx))
235	{	338	{
		339	// register only
236	sv_setuv (*svp, enc->sharable_idx++);	340	sv_setuv (*svp, enc->stringref_idx);
237	encode_tag (enc, CBOR_TAG_VALUE_SHARABLE);	341	++enc->stringref_idx;
238		342	}
239	return 0;
240	}	343	}
241	}
242		344
243	ecb_inline int	345	encode_str (enc, upgrade_utf8, utf8, str, len);
244	encode_sharable (enc_t *enc, SV *sv)
245	{
246	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)
247	&& ecb_expect_false (SvREFCNT (sv) > 1))
248	return encode_sharable2 (enc, sv);
249
250	return 0;
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	svtype svt;
315
316	SvGETMAGIC (sv);	416	SvGETMAGIC (sv);
		417
317	svt = SvTYPE (sv);	418	svtype svt = SvTYPE (sv);
318
319	if (encode_sharable (enc, sv))
320	return;
321		419
322	if (ecb_expect_false (SvOBJECT (sv)))	420	if (ecb_expect_false (SvOBJECT (sv)))
323	{	421	{
324	HV *boolean_stash = !CBOR_SLOW || types_boolean_stash	422	HV *boolean_stash = !CBOR_SLOW || types_boolean_stash
325	? types_boolean_stash	423	? types_boolean_stash
…		…
330	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	428	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
331	? cbor_tagged_stash	429	? cbor_tagged_stash
332	: gv_stashpv ("CBOR::XS::Tagged" , 1);	430	: gv_stashpv ("CBOR::XS::Tagged" , 1);
333		431
334	HV *stash = SvSTASH (sv);	432	HV *stash = SvSTASH (sv);
335	GV *method;
336		433
337	if (stash == boolean_stash)	434	if (stash == boolean_stash)
338	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	}
339	else if (stash == error_stash)	439	else if (stash == error_stash)
340	encode_ch (enc, 0xe0 | 23);	440	{
		441	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
		442	return;
		443	}
341	else if (stash == tagged_stash)	444	else if (stash == tagged_stash)
342	{	445	{
343	if (svt != SVt_PVAV)	446	if (svt != SVt_PVAV)
344	croak ("encountered CBOR::XS::Tagged object that isn't an array");	447	croak ("encountered CBOR::XS::Tagged object that isn't an array");
345		448
346	encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));	449	encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
347	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))
348	}	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))));
349	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	486	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
350	{	487	{
351	dSP;	488	dSP;
352		489
353	ENTER; SAVETMPS; PUSHMARK (SP);	490	ENTER; SAVETMPS;
		491	PUSHMARK (SP);
354	// 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
355	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	493	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
356		494
357	PUTBACK;	495	PUTBACK;
358	// G_SCALAR ensures that return value is 1	496	// G_SCALAR ensures that return value is 1
…		…
371	}	509	}
372	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	510	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
373	{	511	{
374	dSP;	512	dSP;
375		513
376	ENTER; SAVETMPS; PUSHMARK (SP);	514	ENTER; SAVETMPS;
		515	SAVESTACK_POS ();
		516	PUSHMARK (SP);
377	EXTEND (SP, 2);	517	EXTEND (SP, 2);
378	// 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
379	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	519	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
380	PUSHs (sv_cbor);	520	PUSHs (sv_cbor);
381		521
…		…
386	// catch this surprisingly common error	526	// catch this surprisingly common error
387	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	527	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
388	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));
389		529
390	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	530	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
391	encode_uint (enc, 0x80, count + 1);	531	encode_uint (enc, MAJOR_ARRAY, count + 1);
392	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	532	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
393		533
394	while (count)	534	while (count)
395	encode_sv (enc, SP[1 - count--]);	535	encode_sv (enc, SP[1 - count--]);
396		536
397	PUTBACK;	537	PUTBACK;
…		…
418	{	558	{
419	double nv = SvNVX (sv);	559	double nv = SvNVX (sv);
420		560
421	need (enc, 9);	561	need (enc, 9);
422		562
423	if (ecb_expect_false (nv == (U32)nv))	563	if (ecb_expect_false (nv == (NV)(U32)nv))
424	encode_uint (enc, 0x00, (U32)nv);	564	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
425	//TODO: maybe I32?	565	//TODO: maybe I32?
426	else if (ecb_expect_false (nv == (float)nv))	566	else if (ecb_expect_false (nv == (float)nv))
427	{	567	{
		568	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
		569
428	uint32_t fp = ecb_float_to_binary32 (nv);	570	uint32_t fp = ecb_float_to_binary32 (nv);
429
430	*enc->cur++ = 0xe0 | 26;
431		571
432	if (!ecb_big_endian ())	572	if (!ecb_big_endian ())
433	fp = ecb_bswap32 (fp);	573	fp = ecb_bswap32 (fp);
434		574
435	memcpy (enc->cur, &fp, 4);	575	memcpy (enc->cur, &fp, 4);
436	enc->cur += 4;	576	enc->cur += 4;
437	}	577	}
438	else	578	else
439	{	579	{
		580	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
		581
440	uint64_t fp = ecb_double_to_binary64 (nv);	582	uint64_t fp = ecb_double_to_binary64 (nv);
441
442	*enc->cur++ = 0xe0 | 27;
443		583
444	if (!ecb_big_endian ())	584	if (!ecb_big_endian ())
445	fp = ecb_bswap64 (fp);	585	fp = ecb_bswap64 (fp);
446		586
447	memcpy (enc->cur, &fp, 8);	587	memcpy (enc->cur, &fp, 8);
…		…
452	static void	592	static void
453	encode_sv (enc_t *enc, SV *sv)	593	encode_sv (enc_t *enc, SV *sv)
454	{	594	{
455	SvGETMAGIC (sv);	595	SvGETMAGIC (sv);
456		596
457	if (encode_sharable (enc, sv))
458	return;
459
460	if (SvPOKp (sv))	597	if (SvPOKp (sv))
461	{	598	{
462	STRLEN len;	599	STRLEN len;
463	char *str = SvPV (sv, len);	600	char *str = SvPV (sv, len);
464	encode_str (enc, SvUTF8 (sv), str, len);	601	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
465	}	602	}
466	else if (SvNOKp (sv))	603	else if (SvNOKp (sv))
467	encode_nv (enc, sv);	604	encode_nv (enc, sv);
468	else if (SvIOKp (sv))	605	else if (SvIOKp (sv))
469	{	606	{
470	if (SvIsUV (sv))	607	if (SvIsUV (sv))
471	encode_uint (enc, 0x00, SvUVX (sv));	608	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
472	else if (SvIVX (sv) >= 0)	609	else if (SvIVX (sv) >= 0)
473	encode_uint (enc, 0x00, SvIVX (sv));	610	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
474	else	611	else
475	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	612	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
476	}	613	}
477	else if (SvROK (sv))	614	else if (SvROK (sv))
478	encode_rv (enc, SvRV (sv));	615	encode_rv (enc, SvRV (sv));
479	else if (!SvOK (sv))	616	else if (!SvOK (sv))
480	encode_ch (enc, 0xe0 | 22);	617	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
481	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	618	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
482	encode_ch (enc, 0xe0 | 23);	619	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
483	else	620	else
484	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",
485	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	622	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
486	}	623	}
487		624
488	static SV *	625	static SV *
489	encode_cbor (SV *scalar, CBOR *cbor)	626	encode_cbor (SV *scalar, CBOR *cbor)
490	{	627	{
491	enc_t enc = { };	628	enc_t enc = { 0 };
492		629
493	enc.cbor = *cbor;	630	enc.cbor = *cbor;
494	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	631	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
495	enc.cur = SvPVX (enc.sv);	632	enc.cur = SvPVX (enc.sv);
496	enc.end = SvEND (enc.sv);	633	enc.end = SvEND (enc.sv);
497		634
498	SvPOK_only (enc.sv);	635	SvPOK_only (enc.sv);
		636
		637	if (cbor->flags & F_PACK_STRINGS)
		638	{
		639	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
		640	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
		641	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
		642	}
		643
499	encode_sv (&enc, scalar);	644	encode_sv (&enc, scalar);
500		645
501	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	646	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
502	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	647	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
503		648
…		…
517	U8 *end; // end of input string	662	U8 *end; // end of input string
518	const char *err; // parse error, if != 0	663	const char *err; // parse error, if != 0
519	CBOR cbor;	664	CBOR cbor;
520	U32 depth; // recursion depth	665	U32 depth; // recursion depth
521	U32 maxdepth; // recursion depth limit	666	U32 maxdepth; // recursion depth limit
522	AV *sharable;	667	AV *shareable;
		668	AV *stringref;
		669	SV *decode_tagged;
		670	SV *err_sv; // optional sv for error, needs to be freed
523	} dec_t;	671	} dec_t;
524		672
525	#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);
526		680
527	#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;
528		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
529	#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)
530	#define DEC_DEC_DEPTH --dec->depth	710	#define DEC_DEC_DEPTH --dec->depth
531		711
532	static UV	712	static UV
533	decode_uint (dec_t *dec)	713	decode_uint (dec_t *dec)
534	{	714	{
535	switch (*dec->cur & 31)	715	U8 m = *dec->cur & MINOR_MASK;
536	{	716	++dec->cur;
537	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
538	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
539	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
540	return *dec->cur++ & 31;
541		717
542	case 24:	718	if (ecb_expect_true (m < LENGTH_EXT1))
		719	return m;
		720	else if (ecb_expect_true (m == LENGTH_EXT1))
		721	{
543	WANT (2);	722	WANT (1);
544	dec->cur += 2;	723	dec->cur += 1;
545	return dec->cur[-1];	724	return dec->cur[-1];
546		725	}
547	case 25:	726	else if (ecb_expect_true (m == LENGTH_EXT2))
		727	{
548	WANT (3);	728	WANT (2);
549	dec->cur += 3;	729	dec->cur += 2;
550	return (((UV)dec->cur[-2]) << 8)	730	return (((UV)dec->cur[-2]) << 8)
551	| ((UV)dec->cur[-1]);	731	| ((UV)dec->cur[-1]);
552		732	}
553	case 26:	733	else if (ecb_expect_true (m == LENGTH_EXT4))
		734	{
554	WANT (5);	735	WANT (4);
555	dec->cur += 5;	736	dec->cur += 4;
556	return (((UV)dec->cur[-4]) << 24)	737	return (((UV)dec->cur[-4]) << 24)
557	| (((UV)dec->cur[-3]) << 16)	738	| (((UV)dec->cur[-3]) << 16)
558	| (((UV)dec->cur[-2]) << 8)	739	| (((UV)dec->cur[-2]) << 8)
559	| ((UV)dec->cur[-1]);	740	| ((UV)dec->cur[-1]);
560		741	}
561	case 27:	742	else if (ecb_expect_true (m == LENGTH_EXT8))
		743	{
562	WANT (9);	744	WANT (8);
563	dec->cur += 9;	745	dec->cur += 8;
		746
		747	return
		748	#if UVSIZE < 8
		749	0
		750	#else
564	return (((UV)dec->cur[-8]) << 56)	751	(((UV)dec->cur[-8]) << 56)
565	| (((UV)dec->cur[-7]) << 48)	752	| (((UV)dec->cur[-7]) << 48)
566	| (((UV)dec->cur[-6]) << 40)	753	| (((UV)dec->cur[-6]) << 40)
567	| (((UV)dec->cur[-5]) << 32)	754	| (((UV)dec->cur[-5]) << 32)
		755	#endif
568	| (((UV)dec->cur[-4]) << 24)	756	| (((UV)dec->cur[-4]) << 24)
569	| (((UV)dec->cur[-3]) << 16)	757	| (((UV)dec->cur[-3]) << 16)
570	| (((UV)dec->cur[-2]) << 8)	758	| (((UV)dec->cur[-2]) << 8)
571	| ((UV)dec->cur[-1]);	759	| ((UV)dec->cur[-1]);
572		760	}
573	default:	761	else
574	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	762	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
575	}
576		763
577	fail:	764	fail:
578	return 0;	765	return 0;
579	}	766	}
580		767
…		…
585	{	772	{
586	AV *av = newAV ();	773	AV *av = newAV ();
587		774
588	DEC_INC_DEPTH;	775	DEC_INC_DEPTH;
589		776
590	if ((*dec->cur & 31) == 31)	777	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
591	{	778	{
592	++dec->cur;	779	++dec->cur;
593		780
594	for (;;)	781	for (;;)
595	{	782	{
596	WANT (1);	783	WANT (1);
597		784
598	if (*dec->cur == (0xe0 | 31))	785	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
599	{	786	{
600	++dec->cur;	787	++dec->cur;
601	break;	788	break;
602	}	789	}
603		790
604	av_push (av, decode_sv (dec));	791	av_push (av, decode_sv (dec));
605	}	792	}
606	}	793	}
607	else	794	else
608	{	795	{
609	int i, len = decode_uint (dec);	796	UV i, len = decode_uint (dec);
610		797
		798	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
611	av_fill (av, len - 1);	799	av_fill (av, len - 1);
612		800
613	for (i = 0; i < len; ++i)	801	for (i = 0; i < len; ++i)
614	AvARRAY (av)[i] = decode_sv (dec);	802	AvARRAY (av)[i] = decode_sv (dec);
615	}	803	}
616		804
617	DEC_DEC_DEPTH;	805	DEC_DEC_DEPTH;
618	return newRV_noinc ((SV *)av);	806	return newRV_noinc ((SV *)av);
619		807
620	fail:	808	fail:
621	SvREFCNT_dec (av);	809	SvREFCNT_dec_NN (av);
622	DEC_DEC_DEPTH;	810	DEC_DEC_DEPTH;
623	return &PL_sv_undef;	811	return &PL_sv_undef;
624	}	812	}
625		813
626	static void	814	static void
627	decode_he (dec_t *dec, HV *hv)	815	decode_he (dec_t *dec, HV *hv)
628	{	816	{
629	// for speed reasons, we specialcase single-string	817	// for speed reasons, we specialcase single-string
630	// byte or utf-8 strings as keys.	818	// byte or utf-8 strings as keys, but only when !stringref
631		819
632	if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27)	820	if (ecb_expect_true (!dec->stringref))
		821	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
633	{	822	{
634	I32 len = decode_uint (dec);	823	STRLEN len = decode_uint (dec);
635	char *key = (char *)dec->cur;	824	char *key = (char *)dec->cur;
636		825
		826	WANT (len);
637	dec->cur += len;	827	dec->cur += len;
638		828
639	hv_store (hv, key, len, decode_sv (dec), 0);	829	hv_store (hv, key, len, decode_sv (dec), 0);
		830
		831	return;
640	}	832	}
641	else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27)	833	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
642	{	834	{
643	I32 len = decode_uint (dec);	835	STRLEN len = decode_uint (dec);
644	char *key = (char *)dec->cur;	836	char *key = (char *)dec->cur;
645		837
		838	WANT (len);
646	dec->cur += len;	839	dec->cur += len;
647		840
		841	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		842	if (!is_utf8_string (key, len))
		843	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
		844
648	hv_store (hv, key, -len, decode_sv (dec), 0);	845	hv_store (hv, key, -len, decode_sv (dec), 0);
		846
		847	return;
649	}	848	}
650	else	849
651	{
652	SV *k = decode_sv (dec);	850	SV *k = decode_sv (dec);
653	SV *v = decode_sv (dec);	851	SV *v = decode_sv (dec);
654		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
655	hv_store_ent (hv, k, v, 0);	881	hv_store_ent (hv, k, v, 0);
656	SvREFCNT_dec (k);	882	SvREFCNT_dec_NN (k);
657	}	883
		884	fail:
		885	;
658	}	886	}
659		887
660	static SV *	888	static SV *
661	decode_hv (dec_t *dec)	889	decode_hv (dec_t *dec)
662	{	890	{
663	HV *hv = newHV ();	891	HV *hv = newHV ();
664		892
665	DEC_INC_DEPTH;	893	DEC_INC_DEPTH;
666		894
667	if ((*dec->cur & 31) == 31)	895	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
668	{	896	{
669	++dec->cur;	897	++dec->cur;
670		898
671	for (;;)	899	for (;;)
672	{	900	{
673	WANT (1);	901	WANT (1);
674		902
675	if (*dec->cur == (0xe0 | 31))	903	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
676	{	904	{
677	++dec->cur;	905	++dec->cur;
678	break;	906	break;
679	}	907	}
680		908
681	decode_he (dec, hv);	909	decode_he (dec, hv);
682	}	910	}
683	}	911	}
684	else	912	else
685	{	913	{
686	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
687		917
688	while (pairs--)	918	while (pairs--)
689	decode_he (dec, hv);	919	decode_he (dec, hv);
690	}	920	}
691		921
692	DEC_DEC_DEPTH;	922	DEC_DEC_DEPTH;
693	return newRV_noinc ((SV *)hv);	923	return newRV_noinc ((SV *)hv);
694		924
695	fail:	925	fail:
696	SvREFCNT_dec (hv);	926	SvREFCNT_dec_NN (hv);
697	DEC_DEC_DEPTH;	927	DEC_DEC_DEPTH;
698	return &PL_sv_undef;	928	return &PL_sv_undef;
699	}	929	}
700		930
701	static SV *	931	static SV *
702	decode_str (dec_t *dec, int utf8)	932	decode_str (dec_t *dec, int utf8)
703	{	933	{
704	SV *sv = 0;	934	SV *sv = 0;
705		935
706	if ((*dec->cur & 31) == 31)	936	if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF))
707	{	937	{
		938	// indefinite length strings
708	++dec->cur;	939	++dec->cur;
709		940
		941	U8 major = *dec->cur & MAJOR_MISC;
		942
710	sv = newSVpvn ("", 0);	943	sv = newSVpvn ("", 0);
711		944
712	// not very fast, and certainly not robust against illegal input
713	for (;;)	945	for (;;)
714	{	946	{
715	WANT (1);	947	WANT (1);
716		948
717	if (*dec->cur == (0xe0 | 31))	949	if ((*dec->cur - major) > LENGTH_EXT8)
		950	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
718	{	951	{
719	++dec->cur;	952	++dec->cur;
720	break;	953	break;
721	}	954	}
		955	else
		956	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
722		957
723	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;
724	}	963	}
725	}	964	}
726	else	965	else
727	{	966	{
728	STRLEN len = decode_uint (dec);	967	STRLEN len = decode_uint (dec);
729		968
730	WANT (len);	969	WANT (len);
731	sv = newSVpvn (dec->cur, len);	970	sv = newSVpvn (dec->cur, len);
732	dec->cur += len;	971	dec->cur += len;
		972
		973	if (ecb_expect_false (dec->stringref)
		974	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
		975	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
733	}	976	}
734		977
735	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
736	SvUTF8_on (sv);	984	SvUTF8_on (sv);
		985	}
737		986
738	return sv;	987	return sv;
739		988
740	fail:	989	fail:
741	SvREFCNT_dec (sv);	990	SvREFCNT_dec (sv);
…		…
743	}	992	}
744		993
745	static SV *	994	static SV *
746	decode_tagged (dec_t *dec)	995	decode_tagged (dec_t *dec)
747	{	996	{
		997	SV *sv = 0;
748	UV tag = decode_uint (dec);	998	UV tag = decode_uint (dec);
749	SV *sv = decode_sv (dec);	999
		1000	WANT (1);
750		1001
751	switch (tag)	1002	switch (tag)
752	{	1003	{
753	case CBOR_TAG_MAGIC:	1004	case CBOR_TAG_MAGIC:
754	return sv;	1005	sv = decode_sv (dec);
		1006	break;
755		1007
756	case CBOR_TAG_INDIRECTION:	1008	case CBOR_TAG_INDIRECTION:
757	return newRV_noinc (sv);	1009	sv = newRV_noinc (decode_sv (dec));
		1010	break;
758		1011
		1012	case CBOR_TAG_STRINGREF_NAMESPACE:
		1013	{
		1014	// do not use SAVETMPS/FREETMPS, as these will
		1015	// erase mortalised caches, e.g. "shareable"
		1016	ENTER;
		1017
		1018	SAVESPTR (dec->stringref);
		1019	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
		1020
		1021	sv = decode_sv (dec);
		1022
		1023	LEAVE;
		1024	}
		1025	break;
		1026
		1027	case CBOR_TAG_STRINGREF:
		1028	{
		1029	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
		1030	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
		1031
		1032	UV idx = decode_uint (dec);
		1033
		1034	if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref)))
		1035	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");
		1036
		1037	sv = newSVsv (AvARRAY (dec->stringref)[idx]);
		1038	}
		1039	break;
		1040
759	case CBOR_TAG_VALUE_SHARABLE:	1041	case CBOR_TAG_VALUE_SHAREABLE:
		1042	{
760	if (ecb_expect_false (!dec->sharable))	1043	if (ecb_expect_false (!dec->shareable))
761	dec->sharable = (AV *)sv_2mortal ((SV *)newAV ());	1044	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
762		1045
		1046	if (dec->cbor.flags & F_ALLOW_CYCLES)
		1047	{
		1048	sv = newSV (0);
763	av_push (dec->sharable, SvREFCNT_inc_NN (sv));	1049	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
764		1050
765	return sv;	1051	SV *osv = decode_sv (dec);
		1052	sv_setsv (sv, 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	}
		1062	}
		1063	break;
766		1064
767	case CBOR_TAG_VALUE_SHAREDREF:	1065	case CBOR_TAG_VALUE_SHAREDREF:
768	{	1066	{
769	// TODO: should verify that the sv atcually was a CBOR unsigned integer	1067	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
770	UV idx = SvUV (sv);	1068	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
771		1069
		1070	UV idx = decode_uint (dec);
		1071
772	if (!dec->sharable || idx > AvFILLp (dec->sharable))	1072	if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable)))
773	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1073	ERR ("corrupted CBOR data (sharedref index out of bounds)");
774		1074
775	SvREFCNT_dec (sv);
776
777	return SvREFCNT_inc_NN (AvARRAY (dec->sharable)[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");
778	}	1079	}
		1080	break;
779		1081
780	case CBOR_TAG_PERL_OBJECT:	1082	case CBOR_TAG_PERL_OBJECT:
781	{	1083	{
		1084	if (dec->cbor.flags & F_FORBID_OBJECTS)
		1085	goto filter;
		1086
		1087	sv = decode_sv (dec);
		1088
782	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1089	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
783	ERR ("corrupted CBOR data (non-array perl object)");	1090	ERR ("corrupted CBOR data (non-array perl object)");
784		1091
785	AV *av = (AV *)SvRV (sv);	1092	AV *av = (AV *)SvRV (sv);
786	int len = av_len (av) + 1;	1093	int len = av_len (av) + 1;
…		…
794	if (!method)	1101	if (!method)
795	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)");
796		1103
797	dSP;	1104	dSP;
798		1105
799	ENTER; SAVETMPS; PUSHMARK (SP);	1106	ENTER; SAVETMPS;
		1107	PUSHMARK (SP);
800	EXTEND (SP, len + 1);	1108	EXTEND (SP, len + 1);
801	// 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
802	PUSHs (*av_fetch (av, 0, 1));	1110	PUSHs (*av_fetch (av, 0, 1));
803	PUSHs (sv_cbor);	1111	PUSHs (sv_cbor);
804		1112
…		…
812	SPAGAIN;	1120	SPAGAIN;
813		1121
814	if (SvTRUE (ERRSV))	1122	if (SvTRUE (ERRSV))
815	{	1123	{
816	FREETMPS; LEAVE;	1124	FREETMPS; LEAVE;
817	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1125	ERR_ERRSV;
818	}	1126	}
819		1127
820	SvREFCNT_dec (sv);	1128	SvREFCNT_dec_NN (sv);
821	sv = SvREFCNT_inc (POPs);	1129	sv = SvREFCNT_inc (POPs);
822		1130
823	PUTBACK;	1131	PUTBACK;
824		1132
825	FREETMPS; LEAVE;	1133	FREETMPS; LEAVE;
826
827	return sv;
828	}	1134	}
		1135	break;
829		1136
830	default:	1137	default:
		1138	filter:
		1139	{
		1140	SV *tag_sv = newSVuv (tag);
		1141
		1142	sv = decode_sv (dec);
		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))
831	{	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	{
832	AV *av = newAV ();	1171	AV *av = newAV ();
833	av_push (av, newSVuv (tag));	1172	av_push (av, tag_sv);
834	av_push (av, sv);	1173	av_push (av, sv);
835		1174
836	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1175	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
837	? cbor_tagged_stash	1176	? cbor_tagged_stash
838	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1177	: gv_stashpv ("CBOR::XS::Tagged" , 1);
839
840	return sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1178	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
841	}	1179	}
		1180
		1181	PUTBACK;
		1182
		1183	FREETMPS; LEAVE;
		1184	}
		1185	break;
842	}	1186	}
		1187
		1188	return sv;
843		1189
844	fail:	1190	fail:
845	SvREFCNT_dec (sv);	1191	SvREFCNT_dec (sv);
846	return &PL_sv_undef;	1192	return &PL_sv_undef;
847	}	1193	}
…		…
849	static SV *	1195	static SV *
850	decode_sv (dec_t *dec)	1196	decode_sv (dec_t *dec)
851	{	1197	{
852	WANT (1);	1198	WANT (1);
853		1199
854	switch (*dec->cur >> 5)	1200	switch (*dec->cur >> MAJOR_SHIFT)
855	{	1201	{
856	case 0: // unsigned int	1202	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
857	return newSVuv (decode_uint (dec));	1203	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
858	case 1: // negative int	1204	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
859	return newSViv (-1 - (IV)decode_uint (dec));	1205	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
860	case 2: // octet string	1206	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
861	return decode_str (dec, 0);	1207	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
862	case 3: // utf-8 string	1208	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
863	return decode_str (dec, 1);	1209
864	case 4: // array	1210	case MAJOR_MISC >> MAJOR_SHIFT:
865	return decode_av (dec);
866	case 5: // map
867	return decode_hv (dec);
868	case 6: // tag
869	return decode_tagged (dec);
870	case 7: // misc
871	switch (*dec->cur++ & 31)	1211	switch (*dec->cur++ & MINOR_MASK)
872	{	1212	{
873	case 20:	1213	case SIMPLE_FALSE:
874	#if CBOR_SLOW	1214	#if CBOR_SLOW
875	types_false = get_bool ("Types::Serialiser::false");	1215	types_false = get_bool ("Types::Serialiser::false");
876	#endif	1216	#endif
877	return newSVsv (types_false);	1217	return newSVsv (types_false);
878	case 21:	1218	case SIMPLE_TRUE:
879	#if CBOR_SLOW	1219	#if CBOR_SLOW
880	types_true = get_bool ("Types::Serialiser::true");	1220	types_true = get_bool ("Types::Serialiser::true");
881	#endif	1221	#endif
882	return newSVsv (types_true);	1222	return newSVsv (types_true);
883	case 22:	1223	case SIMPLE_NULL:
884	return newSVsv (&PL_sv_undef);	1224	return newSVsv (&PL_sv_undef);
885	case 23:	1225	case SIMPLE_UNDEF:
886	#if CBOR_SLOW	1226	#if CBOR_SLOW
887	types_error = get_bool ("Types::Serialiser::error");	1227	types_error = get_bool ("Types::Serialiser::error");
888	#endif	1228	#endif
889	return newSVsv (types_error);	1229	return newSVsv (types_error);
890		1230
891	case 25:	1231	case MISC_FLOAT16:
892	{	1232	{
893	WANT (2);	1233	WANT (2);
894		1234
895	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1235	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
896	dec->cur += 2;	1236	dec->cur += 2;
897		1237
898	return newSVnv (ecb_binary16_to_float (fp));	1238	return newSVnv (ecb_binary16_to_float (fp));
899	}	1239	}
900		1240
901	case 26:	1241	case MISC_FLOAT32:
902	{	1242	{
903	uint32_t fp;	1243	uint32_t fp;
904	WANT (4);	1244	WANT (4);
905	memcpy (&fp, dec->cur, 4);	1245	memcpy (&fp, dec->cur, 4);
906	dec->cur += 4;	1246	dec->cur += 4;
…		…
909	fp = ecb_bswap32 (fp);	1249	fp = ecb_bswap32 (fp);
910		1250
911	return newSVnv (ecb_binary32_to_float (fp));	1251	return newSVnv (ecb_binary32_to_float (fp));
912	}	1252	}
913		1253
914	case 27:	1254	case MISC_FLOAT64:
915	{	1255	{
916	uint64_t fp;	1256	uint64_t fp;
917	WANT (8);	1257	WANT (8);
918	memcpy (&fp, dec->cur, 8);	1258	memcpy (&fp, dec->cur, 8);
919	dec->cur += 8;	1259	dec->cur += 8;
…		…
922	fp = ecb_bswap64 (fp);	1262	fp = ecb_bswap64 (fp);
923		1263
924	return newSVnv (ecb_binary64_to_double (fp));	1264	return newSVnv (ecb_binary64_to_double (fp));
925	}	1265	}
926		1266
927	// 0..19 unassigned	1267	// 0..19 unassigned simple
928	// 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
929	default:	1271	default:
930	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1272	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
931	}	1273	}
932		1274
933	break;	1275	break;
934	}	1276	}
935		1277
…		…
938	}	1280	}
939		1281
940	static SV *	1282	static SV *
941	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1283	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
942	{	1284	{
943	dec_t dec = { };	1285	dec_t dec = { 0 };
944	SV *sv;	1286	SV *sv;
945	STRLEN len;	1287	STRLEN len;
946	char *data = SvPVbyte (string, len);	1288	char *data = SvPVbyte (string, len);
947		1289
948	if (len > cbor->max_size && cbor->max_size)	1290	if (len > cbor->max_size && cbor->max_size)
…		…
962	if (dec.cur != dec.end && !dec.err)	1304	if (dec.cur != dec.end && !dec.err)
963	dec.err = "garbage after CBOR object";	1305	dec.err = "garbage after CBOR object";
964		1306
965	if (dec.err)	1307	if (dec.err)
966	{	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
967	SvREFCNT_dec (sv);	1320	SvREFCNT_dec_NN (sv);
		1321
		1322	if (dec.err_sv)
		1323	sv_2mortal (dec.err_sv);
		1324
968	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);
969	}	1326	}
970		1327
971	sv = sv_2mortal (sv);	1328	sv = sv_2mortal (sv);
972		1329
973	return sv;	1330	return sv;
974	}	1331	}
975		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
976	/////////////////////////////////////////////////////////////////////////////	1457	/////////////////////////////////////////////////////////////////////////////
977	// XS interface functions	1458	// XS interface functions
978		1459
979	MODULE = CBOR::XS PACKAGE = CBOR::XS	1460	MODULE = CBOR::XS PACKAGE = CBOR::XS
980		1461
…		…
988		1469
989	types_true = get_bool ("Types::Serialiser::true" );	1470	types_true = get_bool ("Types::Serialiser::true" );
990	types_false = get_bool ("Types::Serialiser::false");	1471	types_false = get_bool ("Types::Serialiser::false");
991	types_error = get_bool ("Types::Serialiser::error");	1472	types_error = get_bool ("Types::Serialiser::error");
992		1473
		1474	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
		1475
993	sv_cbor = newSVpv ("CBOR", 0);	1476	sv_cbor = newSVpv ("CBOR", 0);
994	SvREADONLY_on (sv_cbor);	1477	SvREADONLY_on (sv_cbor);
		1478
		1479	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
995	}	1480	}
996		1481
997	PROTOTYPES: DISABLE	1482	PROTOTYPES: DISABLE
998		1483
999	void CLONE (...)	1484	void CLONE (...)
…		…
1018	void shrink (CBOR *self, int enable = 1)	1503	void shrink (CBOR *self, int enable = 1)
1019	ALIAS:	1504	ALIAS:
1020	shrink = F_SHRINK	1505	shrink = F_SHRINK
1021	allow_unknown = F_ALLOW_UNKNOWN	1506	allow_unknown = F_ALLOW_UNKNOWN
1022	allow_sharing = F_ALLOW_SHARING	1507	allow_sharing = F_ALLOW_SHARING
1023	dedup_keys = F_DEDUP_KEYS	1508	allow_cycles = F_ALLOW_CYCLES
		1509	forbid_objects = F_FORBID_OBJECTS
1024	dedup_strings = F_DEDUP_STRINGS	1510	pack_strings = F_PACK_STRINGS
		1511	text_keys = F_TEXT_KEYS
		1512	text_strings = F_TEXT_STRINGS
		1513	validate_utf8 = F_VALIDATE_UTF8
1025	PPCODE:	1514	PPCODE:
1026	{	1515	{
1027	if (enable)	1516	if (enable)
1028	self->flags |= ix;	1517	self->flags |= ix;
1029	else	1518	else
…		…
1035	void get_shrink (CBOR *self)	1524	void get_shrink (CBOR *self)
1036	ALIAS:	1525	ALIAS:
1037	get_shrink = F_SHRINK	1526	get_shrink = F_SHRINK
1038	get_allow_unknown = F_ALLOW_UNKNOWN	1527	get_allow_unknown = F_ALLOW_UNKNOWN
1039	get_allow_sharing = F_ALLOW_SHARING	1528	get_allow_sharing = F_ALLOW_SHARING
1040	get_dedup_keys = F_DEDUP_KEYS	1529	get_allow_cycles = F_ALLOW_CYCLES
		1530	get_forbid_objects = F_FORBID_OBJECTS
1041	get_dedup_strings = F_DEDUP_STRINGS	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
1042	PPCODE:	1535	PPCODE:
1043	XPUSHs (boolSV (self->flags & ix));	1536	XPUSHs (boolSV (self->flags & ix));
1044		1537
1045	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1538	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1046	PPCODE:	1539	PPCODE:
…		…
1059	XPUSHs (ST (0));	1552	XPUSHs (ST (0));
1060		1553
1061	int get_max_size (CBOR *self)	1554	int get_max_size (CBOR *self)
1062	CODE:	1555	CODE:
1063	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);
1064	OUTPUT:	1569	OUTPUT:
1065	RETVAL	1570	RETVAL
1066		1571
1067	void encode (CBOR *self, SV *scalar)	1572	void encode (CBOR *self, SV *scalar)
1068	PPCODE:	1573	PPCODE:
…		…
1083	EXTEND (SP, 2);	1588	EXTEND (SP, 2);
1084	PUSHs (sv);	1589	PUSHs (sv);
1085	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1590	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1086	}	1591	}
1087		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
1088	PROTOTYPES: ENABLE	1649	PROTOTYPES: ENABLE
1089		1650
1090	void encode_cbor (SV *scalar)	1651	void encode_cbor (SV *scalar)
		1652	ALIAS:
		1653	encode_cbor = 0
		1654	encode_cbor_sharing = F_ALLOW_SHARING
1091	PPCODE:	1655	PPCODE:
1092	{	1656	{
1093	CBOR cbor;	1657	CBOR cbor;
1094	cbor_init (&cbor);	1658	cbor_init (&cbor);
		1659	cbor.flags |= ix;
1095	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1660	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1096	XPUSHs (scalar);	1661	XPUSHs (scalar);
1097	}	1662	}
1098		1663
1099	void decode_cbor (SV *cborstr)	1664	void decode_cbor (SV *cborstr)
…		…
1103	cbor_init (&cbor);	1668	cbor_init (&cbor);
1104	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;	1669	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;
1105	XPUSHs (cborstr);	1670	XPUSHs (cborstr);
1106	}	1671	}
1107		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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