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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.20 by root, Wed Nov 20 11:06:42 2013 UTC vs.
Revision 1.61 by root, Sat Nov 26 02:10:19 2016 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_dec_NN
		27	# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
		28	#endif
		29
		30	// known major and minor types
		31	enum cbor_type
		32	{
		33	MAJOR_SHIFT = 5,
		34	MINOR_MASK = 0x1f,
		35
		36	MAJOR_POS_INT = 0 << MAJOR_SHIFT,
		37	MAJOR_NEG_INT = 1 << MAJOR_SHIFT,
		38	MAJOR_BYTES = 2 << MAJOR_SHIFT,
		39	MAJOR_TEXT = 3 << MAJOR_SHIFT,
		40	MAJOR_ARRAY = 4 << MAJOR_SHIFT,
		41	MAJOR_MAP = 5 << MAJOR_SHIFT,
		42	MAJOR_TAG = 6 << MAJOR_SHIFT,
		43	MAJOR_MISC = 7 << MAJOR_SHIFT,
		44
		45	// INT/STRING/ARRAY/MAP subtypes
		46	LENGTH_EXT1 = 24,
		47	LENGTH_EXT2 = 25,
		48	LENGTH_EXT4 = 26,
		49	LENGTH_EXT8 = 27,
		50
		51	// SIMPLE types (effectively MISC subtypes)
		52	SIMPLE_FALSE = 20,
		53	SIMPLE_TRUE = 21,
		54	SIMPLE_NULL = 22,
		55	SIMPLE_UNDEF = 23,
		56
		57	// MISC subtype (unused)
		58	MISC_EXT1 = 24,
		59	MISC_FLOAT16 = 25,
		60	MISC_FLOAT32 = 26,
		61	MISC_FLOAT64 = 27,
		62
		63	// BYTES/TEXT/ARRAY/MAP
		64	MINOR_INDEF = 31,
		65	};
24		66
25	// known tags	67	// known tags
26	enum cbor_tag	68	enum cbor_tag
27	{	69	{
28	// inofficial extensions (pending iana registration)	70	// extensions
		71	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
29	CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object	72	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
30	CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object	73	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
31	CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing	74	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
32	CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing	75	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
33	CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref	76	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	77	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
36		78
37	// rfc7049	79	// rfc7049
38	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	80	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
39	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	81	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
40	CBOR_TAG_POS_BIGNUM = 2, // byte string	82	CBOR_TAG_POS_BIGNUM = 2, // byte string
41	CBOR_TAG_NEG_BIGNUM = 3, // byte string	83	CBOR_TAG_NEG_BIGNUM = 3, // byte string
42	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	84	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
43	CBOR_TAG_BIGFLOAT = 5, // array	85	CBOR_TAG_BIGFLOAT = 5, // array
44		86
45	CBOR_TAG_CONV_B64U = 21, // base64url, any	87	CBOR_TAG_CONV_B64U = 21, // base64url, any
46	CBOR_TAG_CONV_B64 = 22, // base64, any	88	CBOR_TAG_CONV_B64 = 22, // base64, any
47	CBOR_TAG_CONV_HEX = 23, // base16, any	89	CBOR_TAG_CONV_HEX = 23, // base16, any
48	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	90	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
49		91
50	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	92	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
51	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	93	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
52	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	94	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
53	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	95	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
54	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	96	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
55		97
56	CBOR_TAG_MAGIC = 55799 // self-describe cbor	98	CBOR_TAG_MAGIC = 55799, // self-describe cbor
57	};	99	};
58		100
59	#define F_SHRINK 0x00000001UL	101	#define F_SHRINK 0x00000001UL
60	#define F_ALLOW_UNKNOWN 0x00000002UL	102	#define F_ALLOW_UNKNOWN 0x00000002UL
61	#define F_ALLOW_SHARING 0x00000004UL //TODO	103	#define F_ALLOW_SHARING 0x00000004UL
		104	#define F_ALLOW_CYCLES 0x00000008UL
		105	#define F_FORBID_OBJECTS 0x00000010UL
62	#define F_DEDUP_STRINGS 0x00000008UL //TODO	106	#define F_PACK_STRINGS 0x00000020UL
63	#define F_DEDUP_KEYS 0x00000010UL //TODO	107	#define F_TEXT_KEYS 0x00000040UL
		108	#define F_TEXT_STRINGS 0x00000080UL
		109	#define F_VALIDATE_UTF8 0x00000100UL
64		110
65	#define INIT_SIZE 32 // initial scalar size to be allocated	111	#define INIT_SIZE 32 // initial scalar size to be allocated
66		112
67	#define SB do {	113	#define SB do {
68	#define SE } while (0)	114	#define SE } while (0)
…		…
80	# define CBOR_SLOW 0	126	# define CBOR_SLOW 0
81	# define CBOR_STASH cbor_stash	127	# define CBOR_STASH cbor_stash
82	#endif	128	#endif
83		129
84	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::	130	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;	131	static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter;
86		132
87	typedef struct {	133	typedef struct {
88	U32 flags;	134	U32 flags;
89	U32 max_depth;	135	U32 max_depth;
90	STRLEN max_size;	136	STRLEN max_size;
		137	SV *filter;
		138
		139	// for the incremental parser
		140	STRLEN incr_pos; // the current offset into the text
		141	STRLEN incr_need; // minimum bytes needed to decode
		142	AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef.
91	} CBOR;	143	} CBOR;
92		144
93	ecb_inline void	145	ecb_inline void
94	cbor_init (CBOR *cbor)	146	cbor_init (CBOR *cbor)
95	{	147	{
96	Zero (cbor, 1, CBOR);	148	Zero (cbor, 1, CBOR);
97	cbor->max_depth = 512;	149	cbor->max_depth = 512;
		150	}
		151
		152	ecb_inline void
		153	cbor_free (CBOR *cbor)
		154	{
		155	SvREFCNT_dec (cbor->filter);
		156	SvREFCNT_dec (cbor->incr_count);
98	}	157	}
99		158
100	/////////////////////////////////////////////////////////////////////////////	159	/////////////////////////////////////////////////////////////////////////////
101	// utility functions	160	// utility functions
102		161
…		…
122	SvPV_shrink_to_cur (sv);	181	SvPV_shrink_to_cur (sv);
123	#elif defined (SvPV_renew)	182	#elif defined (SvPV_renew)
124	SvPV_renew (sv, SvCUR (sv) + 1);	183	SvPV_renew (sv, SvCUR (sv) + 1);
125	#endif	184	#endif
126	}	185	}
		186	}
		187
		188	// minimum length of a string to be registered for stringref
		189	ecb_inline int
		190	minimum_string_length (UV idx)
		191	{
		192
		193	return idx <= 23 ? 3
		194	: idx <= 0xffU ? 4
		195	: idx <= 0xffffU ? 5
		196	: idx <= 0xffffffffU ? 7
		197	: 11;
127	}	198	}
128		199
129	/////////////////////////////////////////////////////////////////////////////	200	/////////////////////////////////////////////////////////////////////////////
130	// encoder	201	// encoder
131		202
…		…
144	} enc_t;	215	} enc_t;
145		216
146	ecb_inline void	217	ecb_inline void
147	need (enc_t *enc, STRLEN len)	218	need (enc_t *enc, STRLEN len)
148	{	219	{
149	if (ecb_expect_false (enc->cur + len >= enc->end))	220	if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len))
150	{	221	{
151	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);	222	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
152	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	223	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
153	enc->cur = SvPVX (enc->sv) + cur;	224	enc->cur = SvPVX (enc->sv) + cur;
154	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	225	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
…		…
165	static void	236	static void
166	encode_uint (enc_t *enc, int major, UV len)	237	encode_uint (enc_t *enc, int major, UV len)
167	{	238	{
168	need (enc, 9);	239	need (enc, 9);
169		240
170	if (len < 24)	241	if (ecb_expect_true (len < LENGTH_EXT1))
171	*enc->cur++ = major | len;	242	*enc->cur++ = major | len;
172	else if (len <= 0xff)	243	else if (ecb_expect_true (len <= 0xffU))
173	{	244	{
174	*enc->cur++ = major | 24;	245	*enc->cur++ = major | LENGTH_EXT1;
175	*enc->cur++ = len;	246	*enc->cur++ = len;
176	}	247	}
177	else if (len <= 0xffff)	248	else if (len <= 0xffffU)
178	{	249	{
179	*enc->cur++ = major | 25;	250	*enc->cur++ = major | LENGTH_EXT2;
180	*enc->cur++ = len >> 8;	251	*enc->cur++ = len >> 8;
181	*enc->cur++ = len;	252	*enc->cur++ = len;
182	}	253	}
183	else if (len <= 0xffffffff)	254	else if (len <= 0xffffffffU)
184	{	255	{
185	*enc->cur++ = major | 26;	256	*enc->cur++ = major | LENGTH_EXT4;
186	*enc->cur++ = len >> 24;	257	*enc->cur++ = len >> 24;
187	*enc->cur++ = len >> 16;	258	*enc->cur++ = len >> 16;
188	*enc->cur++ = len >> 8;	259	*enc->cur++ = len >> 8;
189	*enc->cur++ = len;	260	*enc->cur++ = len;
190	}	261	}
191	else	262	else
192	{	263	{
193	*enc->cur++ = major | 27;	264	*enc->cur++ = major | LENGTH_EXT8;
194	*enc->cur++ = len >> 56;	265	*enc->cur++ = len >> 56;
195	*enc->cur++ = len >> 48;	266	*enc->cur++ = len >> 48;
196	*enc->cur++ = len >> 40;	267	*enc->cur++ = len >> 40;
197	*enc->cur++ = len >> 32;	268	*enc->cur++ = len >> 32;
198	*enc->cur++ = len >> 24;	269	*enc->cur++ = len >> 24;
…		…
200	*enc->cur++ = len >> 8;	271	*enc->cur++ = len >> 8;
201	*enc->cur++ = len;	272	*enc->cur++ = len;
202	}	273	}
203	}	274	}
204		275
205	static void	276	ecb_inline void
		277	encode_tag (enc_t *enc, UV tag)
		278	{
		279	encode_uint (enc, MAJOR_TAG, tag);
		280	}
		281
		282	// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded
		283	ecb_noinline static void
206	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)	284	encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len)
207	{	285	{
208	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	286	STRLEN ulen = len;
		287	U8 *p, *pend = (U8 *)str + len;
		288
		289	for (p = (U8 *)str; p < pend; ++p)
		290	ulen += *p >> 7; // count set high bits
		291
		292	encode_uint (enc, MAJOR_TEXT, ulen);
		293
		294	need (enc, ulen);
		295	for (p = (U8 *)str; p < pend; ++p)
		296	if (*p < 0x80)
		297	*enc->cur++ = *p;
		298	else
		299	{
		300	*enc->cur++ = 0xc0 + (*p >> 6);
		301	*enc->cur++ = 0x80 + (*p & 63);
		302	}
		303	}
		304
		305	ecb_inline void
		306	encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
		307	{
		308	if (ecb_expect_false (upgrade_utf8))
		309	if (!utf8)
		310	{
		311	encode_str_utf8 (enc, utf8, str, len);
		312	return;
		313	}
		314
		315	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
209	need (enc, len);	316	need (enc, len);
210	memcpy (enc->cur, str, len);	317	memcpy (enc->cur, str, len);
211	enc->cur += len;	318	enc->cur += len;
212	}	319	}
213		320
214	ecb_inline void	321	ecb_inline void
215	encode_tag (enc_t *enc, UV tag)	322	encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
216	{	323	{
217	encode_uint (enc, 0xc0, tag);	324	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
		325	{
		326	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
		327
		328	if (SvOK (*svp))
		329	{
		330	// already registered, use stringref
		331	encode_tag (enc, CBOR_TAG_STRINGREF);
		332	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		333	return;
		334	}
		335	else if (len >= minimum_string_length (enc->stringref_idx))
		336	{
		337	// register only
		338	sv_setuv (*svp, enc->stringref_idx);
		339	++enc->stringref_idx;
		340	}
		341	}
		342
		343	encode_str (enc, upgrade_utf8, utf8, str, len);
218	}	344	}
219		345
220	static void encode_sv (enc_t *enc, SV *sv);	346	static void encode_sv (enc_t *enc, SV *sv);
221		347
222	static void	348	static void
…		…
227	if (enc->depth >= enc->cbor.max_depth)	353	if (enc->depth >= enc->cbor.max_depth)
228	croak (ERR_NESTING_EXCEEDED);	354	croak (ERR_NESTING_EXCEEDED);
229		355
230	++enc->depth;	356	++enc->depth;
231		357
232	encode_uint (enc, 0x80, len + 1);	358	encode_uint (enc, MAJOR_ARRAY, len + 1);
233		359
		360	if (SvMAGICAL (av))
234	for (i = 0; i <= len; ++i)	361	for (i = 0; i <= len; ++i)
235	{	362	{
236	SV **svp = av_fetch (av, i, 0);	363	SV **svp = av_fetch (av, i, 0);
237	encode_sv (enc, svp ? *svp : &PL_sv_undef);	364	encode_sv (enc, svp ? *svp : &PL_sv_undef);
238	}	365	}
		366	else
		367	for (i = 0; i <= len; ++i)
		368	{
		369	SV *sv = AvARRAY (av)[i];
		370	encode_sv (enc, sv ? sv : &PL_sv_undef);
		371	}
239		372
240	--enc->depth;	373	--enc->depth;
241	}
242
243	ecb_inline void
244	encode_he (enc_t *enc, HE *he)
245	{
246	if (HeKLEN (he) == HEf_SVKEY)
247	encode_sv (enc, HeSVKEY (he));
248	else
249	encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));
250	}	374	}
251		375
252	static void	376	static void
253	encode_hv (enc_t *enc, HV *hv)	377	encode_hv (enc_t *enc, HV *hv)
254	{	378	{
…		…
261		385
262	int pairs = hv_iterinit (hv);	386	int pairs = hv_iterinit (hv);
263	int mg = SvMAGICAL (hv);	387	int mg = SvMAGICAL (hv);
264		388
265	if (mg)	389	if (mg)
266	encode_ch (enc, 0xa0 | 31);	390	encode_ch (enc, MAJOR_MAP | MINOR_INDEF);
267	else	391	else
268	encode_uint (enc, 0xa0, pairs);	392	encode_uint (enc, MAJOR_MAP, pairs);
269		393
270	while ((he = hv_iternext (hv)))	394	while ((he = hv_iternext (hv)))
271	{	395	{
272	if (ecb_expect_false (enc->cbor.flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS)))
273	{
274	SV **svp;
275
276	if (HeKLEN (he) == HEf_SVKEY)	396	if (HeKLEN (he) == HEf_SVKEY)
277	svp = hv_fetch_ent (enc->stringref[!! SvUTF8 (HeSVKEY (he))], HeSVKEY (he) , 1, 0);//TODO return HE :/	397	encode_sv (enc, HeSVKEY (he));
278	else
279	svp = hv_fetch (enc->stringref[!! HeKUTF8 (he) ], HeKEY (he), HeKLEN (he), 1);
280
281	if (SvOK (*svp))
282	{
283	encode_tag (enc, CBOR_TAG_STRINGREF);
284	encode_uint (enc, 0x00, SvUV (*svp));
285	}
286	else
287	{
288	sv_setuv (*svp, enc->stringref_idx);
289	++enc->stringref_idx;
290	encode_he (enc, he);
291	}
292	}
293	else	398	else
294	encode_he (enc, he);	399	encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he));
295		400
296	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));	401	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
297	}	402	}
298		403
299	if (mg)	404	if (mg)
300	encode_ch (enc, 0xe0 | 31);	405	encode_ch (enc, MAJOR_MISC | MINOR_INDEF);
301		406
302	--enc->depth;	407	--enc->depth;
303	}	408	}
304		409
305	// encode objects, arrays and special \0=false and \1=true values.	410	// encode objects, arrays and special \0=false and \1=true values.
306	static void	411	static void
307	encode_rv (enc_t *enc, SV *sv)	412	encode_rv (enc_t *enc, SV *sv)
308	{	413	{
309	SvGETMAGIC (sv);	414	SvGETMAGIC (sv);
310
311	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)
312	&& ecb_expect_false (SvREFCNT (sv) > 1))
313	{
314	if (!enc->shareable)
315	enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
316
317	SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
318
319	if (SvOK (*svp))
320	{
321	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
322	encode_uint (enc, 0x00, SvUV (*svp));
323	return;
324	}
325	else
326	{
327	sv_setuv (*svp, enc->shareable_idx);
328	++enc->shareable_idx;
329	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
330	}
331	}
332		415
333	svtype svt = SvTYPE (sv);	416	svtype svt = SvTYPE (sv);
334		417
335	if (ecb_expect_false (SvOBJECT (sv)))	418	if (ecb_expect_false (SvOBJECT (sv)))
336	{	419	{
…		…
343	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	426	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
344	? cbor_tagged_stash	427	? cbor_tagged_stash
345	: gv_stashpv ("CBOR::XS::Tagged" , 1);	428	: gv_stashpv ("CBOR::XS::Tagged" , 1);
346		429
347	HV *stash = SvSTASH (sv);	430	HV *stash = SvSTASH (sv);
348	GV *method;
349		431
350	if (stash == boolean_stash)	432	if (stash == boolean_stash)
351	encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20);	433	{
		434	encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE);
		435	return;
		436	}
352	else if (stash == error_stash)	437	else if (stash == error_stash)
353	encode_ch (enc, 0xe0 | 23);	438	{
		439	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
		440	return;
		441	}
354	else if (stash == tagged_stash)	442	else if (stash == tagged_stash)
355	{	443	{
356	if (svt != SVt_PVAV)	444	if (svt != SVt_PVAV)
357	croak ("encountered CBOR::XS::Tagged object that isn't an array");	445	croak ("encountered CBOR::XS::Tagged object that isn't an array");
358		446
359	encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));	447	encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
360	encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));	448	encode_sv (enc, *av_fetch ((AV *)sv, 1, 1));
		449
		450	return;
		451	}
		452	}
		453
		454	if (ecb_expect_false (SvREFCNT (sv) > 1)
		455	&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
		456	{
		457	if (!enc->shareable)
		458	enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
		459
		460	SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
		461
		462	if (SvOK (*svp))
361	}	463	{
		464	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
		465	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		466	return;
		467	}
		468	else
		469	{
		470	sv_setuv (*svp, enc->shareable_idx);
		471	++enc->shareable_idx;
		472	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
		473	}
		474	}
		475
		476	if (ecb_expect_false (SvOBJECT (sv)))
		477	{
		478	HV *stash = SvSTASH (sv);
		479	GV *method;
		480
		481	if (enc->cbor.flags & F_FORBID_OBJECTS)
		482	croak ("encountered object '%s', but forbid_objects is enabled",
		483	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
362	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	484	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
363	{	485	{
364	dSP;	486	dSP;
365		487
366	ENTER; SAVETMPS; PUSHMARK (SP);	488	ENTER; SAVETMPS;
		489	PUSHMARK (SP);
367	// we re-bless the reference to get overload and other niceties right	490	// we re-bless the reference to get overload and other niceties right
368	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	491	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
369		492
370	PUTBACK;	493	PUTBACK;
371	// G_SCALAR ensures that return value is 1	494	// G_SCALAR ensures that return value is 1
…		…
384	}	507	}
385	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	508	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
386	{	509	{
387	dSP;	510	dSP;
388		511
389	ENTER; SAVETMPS; PUSHMARK (SP);	512	ENTER; SAVETMPS;
		513	SAVESTACK_POS ();
		514	PUSHMARK (SP);
390	EXTEND (SP, 2);	515	EXTEND (SP, 2);
391	// we re-bless the reference to get overload and other niceties right	516	// we re-bless the reference to get overload and other niceties right
392	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	517	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
393	PUSHs (sv_cbor);	518	PUSHs (sv_cbor);
394		519
…		…
399	// catch this surprisingly common error	524	// catch this surprisingly common error
400	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	525	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
401	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));	526	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
402		527
403	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	528	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
404	encode_uint (enc, 0x80, count + 1);	529	encode_uint (enc, MAJOR_ARRAY, count + 1);
405	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	530	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
406		531
407	while (count)	532	while (count)
408	encode_sv (enc, SP[1 - count--]);	533	encode_sv (enc, SP[1 - count--]);
409		534
410	PUTBACK;	535	PUTBACK;
…		…
431	{	556	{
432	double nv = SvNVX (sv);	557	double nv = SvNVX (sv);
433		558
434	need (enc, 9);	559	need (enc, 9);
435		560
436	if (ecb_expect_false (nv == (U32)nv))	561	if (ecb_expect_false (nv == (NV)(U32)nv))
437	encode_uint (enc, 0x00, (U32)nv);	562	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
438	//TODO: maybe I32?	563	//TODO: maybe I32?
439	else if (ecb_expect_false (nv == (float)nv))	564	else if (ecb_expect_false (nv == (float)nv))
440	{	565	{
441	uint32_t fp = ecb_float_to_binary32 (nv);	566	uint32_t fp = ecb_float_to_binary32 (nv);
442		567
443	*enc->cur++ = 0xe0 | 26;	568	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
444		569
445	if (!ecb_big_endian ())	570	if (!ecb_big_endian ())
446	fp = ecb_bswap32 (fp);	571	fp = ecb_bswap32 (fp);
447		572
448	memcpy (enc->cur, &fp, 4);	573	memcpy (enc->cur, &fp, 4);
…		…
450	}	575	}
451	else	576	else
452	{	577	{
453	uint64_t fp = ecb_double_to_binary64 (nv);	578	uint64_t fp = ecb_double_to_binary64 (nv);
454		579
455	*enc->cur++ = 0xe0 | 27;	580	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
456		581
457	if (!ecb_big_endian ())	582	if (!ecb_big_endian ())
458	fp = ecb_bswap64 (fp);	583	fp = ecb_bswap64 (fp);
459		584
460	memcpy (enc->cur, &fp, 8);	585	memcpy (enc->cur, &fp, 8);
…		…
469		594
470	if (SvPOKp (sv))	595	if (SvPOKp (sv))
471	{	596	{
472	STRLEN len;	597	STRLEN len;
473	char *str = SvPV (sv, len);	598	char *str = SvPV (sv, len);
474	encode_str (enc, SvUTF8 (sv), str, len);	599	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
475	}	600	}
476	else if (SvNOKp (sv))	601	else if (SvNOKp (sv))
477	encode_nv (enc, sv);	602	encode_nv (enc, sv);
478	else if (SvIOKp (sv))	603	else if (SvIOKp (sv))
479	{	604	{
480	if (SvIsUV (sv))	605	if (SvIsUV (sv))
481	encode_uint (enc, 0x00, SvUVX (sv));	606	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
482	else if (SvIVX (sv) >= 0)	607	else if (SvIVX (sv) >= 0)
483	encode_uint (enc, 0x00, SvIVX (sv));	608	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
484	else	609	else
485	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	610	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
486	}	611	}
487	else if (SvROK (sv))	612	else if (SvROK (sv))
488	encode_rv (enc, SvRV (sv));	613	encode_rv (enc, SvRV (sv));
489	else if (!SvOK (sv))	614	else if (!SvOK (sv))
490	encode_ch (enc, 0xe0 | 22);	615	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
491	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	616	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
492	encode_ch (enc, 0xe0 | 23);	617	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
493	else	618	else
494	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	619	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
495	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	620	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
496	}	621	}
497		622
498	static SV *	623	static SV *
499	encode_cbor (SV *scalar, CBOR *cbor)	624	encode_cbor (SV *scalar, CBOR *cbor)
500	{	625	{
501	enc_t enc = { };	626	enc_t enc = { 0 };
502		627
503	enc.cbor = *cbor;	628	enc.cbor = *cbor;
504	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	629	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
505	enc.cur = SvPVX (enc.sv);	630	enc.cur = SvPVX (enc.sv);
506	enc.end = SvEND (enc.sv);	631	enc.end = SvEND (enc.sv);
507		632
508	SvPOK_only (enc.sv);	633	SvPOK_only (enc.sv);
509		634
510	if (cbor->flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS))	635	if (cbor->flags & F_PACK_STRINGS)
511	{	636	{
512	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	637	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
513	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());	638	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
514	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());	639	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
515	}	640	}
…		…
537	CBOR cbor;	662	CBOR cbor;
538	U32 depth; // recursion depth	663	U32 depth; // recursion depth
539	U32 maxdepth; // recursion depth limit	664	U32 maxdepth; // recursion depth limit
540	AV *shareable;	665	AV *shareable;
541	AV *stringref;	666	AV *stringref;
		667	SV *decode_tagged;
		668	SV *err_sv; // optional sv for error, needs to be freed
542	} dec_t;	669	} dec_t;
543		670
544	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	671	// set dec->err to ERRSV
		672	ecb_cold static void
		673	err_errsv (dec_t *dec)
		674	{
		675	if (!dec->err)
		676	{
		677	dec->err_sv = newSVsv (ERRSV);
545		678
546	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	679	// chop off the trailing \n
		680	SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1);
		681	*SvEND (dec->err_sv) = 0;
547		682
		683	dec->err = SvPVutf8_nolen (dec->err_sv);
		684	}
		685	}
		686
		687	// the following functions are used to reduce code size and help the compiler to optimise
		688	ecb_cold static void
		689	err_set (dec_t *dec, const char *reason)
		690	{
		691	if (!dec->err)
		692	dec->err = reason;
		693	}
		694
		695	ecb_cold static void
		696	err_unexpected_end (dec_t *dec)
		697	{
		698	err_set (dec, "unexpected end of CBOR data");
		699	}
		700
		701	ecb_cold static void
		702	err_nesting_exceeded (dec_t *dec)
		703	{
		704	err_set (dec, ERR_NESTING_EXCEEDED);
		705	}
		706
		707	#define ERR_DO(do) SB do; goto fail; SE
		708	#define ERR(reason) ERR_DO (err_set (dec, reason))
		709	#define ERR_ERRSV ERR_DO (err_errsv (dec))
		710
		711	#define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec))
		712
548	#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED)	713	#define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED)
549	#define DEC_DEC_DEPTH --dec->depth	714	#define DEC_DEC_DEPTH --dec->depth
550		715
551	static UV	716	static UV
552	decode_uint (dec_t *dec)	717	decode_uint (dec_t *dec)
553	{	718	{
554	switch (*dec->cur & 31)	719	U8 m = *dec->cur & MINOR_MASK;
555	{	720	++dec->cur;
556	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
557	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
558	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
559	return *dec->cur++ & 31;
560		721
561	case 24:	722	if (ecb_expect_true (m < LENGTH_EXT1))
		723	return m;
		724	else if (ecb_expect_true (m == LENGTH_EXT1))
		725	{
562	WANT (2);	726	WANT (1);
563	dec->cur += 2;	727	dec->cur += 1;
564	return dec->cur[-1];	728	return dec->cur[-1];
565		729	}
566	case 25:	730	else if (ecb_expect_true (m == LENGTH_EXT2))
		731	{
567	WANT (3);	732	WANT (2);
568	dec->cur += 3;	733	dec->cur += 2;
569	return (((UV)dec->cur[-2]) << 8)	734	return (((UV)dec->cur[-2]) << 8)
570	| ((UV)dec->cur[-1]);	735	| ((UV)dec->cur[-1]);
571		736	}
572	case 26:	737	else if (ecb_expect_true (m == LENGTH_EXT4))
		738	{
573	WANT (5);	739	WANT (4);
574	dec->cur += 5;	740	dec->cur += 4;
575	return (((UV)dec->cur[-4]) << 24)	741	return (((UV)dec->cur[-4]) << 24)
576	| (((UV)dec->cur[-3]) << 16)	742	| (((UV)dec->cur[-3]) << 16)
577	| (((UV)dec->cur[-2]) << 8)	743	| (((UV)dec->cur[-2]) << 8)
578	| ((UV)dec->cur[-1]);	744	| ((UV)dec->cur[-1]);
579		745	}
580	case 27:	746	else if (ecb_expect_true (m == LENGTH_EXT8))
		747	{
581	WANT (9);	748	WANT (8);
582	dec->cur += 9;	749	dec->cur += 8;
		750
		751	return
		752	#if UVSIZE < 8
		753	0
		754	#else
583	return (((UV)dec->cur[-8]) << 56)	755	(((UV)dec->cur[-8]) << 56)
584	| (((UV)dec->cur[-7]) << 48)	756	| (((UV)dec->cur[-7]) << 48)
585	| (((UV)dec->cur[-6]) << 40)	757	| (((UV)dec->cur[-6]) << 40)
586	| (((UV)dec->cur[-5]) << 32)	758	| (((UV)dec->cur[-5]) << 32)
		759	#endif
587	| (((UV)dec->cur[-4]) << 24)	760	| (((UV)dec->cur[-4]) << 24)
588	| (((UV)dec->cur[-3]) << 16)	761	| (((UV)dec->cur[-3]) << 16)
589	| (((UV)dec->cur[-2]) << 8)	762	| (((UV)dec->cur[-2]) << 8)
590	| ((UV)dec->cur[-1]);	763	| ((UV)dec->cur[-1]);
591		764	}
592	default:	765	else
593	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	766	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
594	}
595		767
596	fail:	768	fail:
597	return 0;	769	return 0;
598	}	770	}
599		771
…		…
604	{	776	{
605	AV *av = newAV ();	777	AV *av = newAV ();
606		778
607	DEC_INC_DEPTH;	779	DEC_INC_DEPTH;
608		780
609	if ((*dec->cur & 31) == 31)	781	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
610	{	782	{
611	++dec->cur;	783	++dec->cur;
612		784
613	for (;;)	785	for (;;)
614	{	786	{
615	WANT (1);	787	WANT (1);
616		788
617	if (*dec->cur == (0xe0 | 31))	789	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
618	{	790	{
619	++dec->cur;	791	++dec->cur;
620	break;	792	break;
621	}	793	}
622		794
623	av_push (av, decode_sv (dec));	795	av_push (av, decode_sv (dec));
624	}	796	}
625	}	797	}
626	else	798	else
627	{	799	{
628	int i, len = decode_uint (dec);	800	UV i, len = decode_uint (dec);
629		801
		802	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
630	av_fill (av, len - 1);	803	av_fill (av, len - 1);
631		804
632	for (i = 0; i < len; ++i)	805	for (i = 0; i < len; ++i)
633	AvARRAY (av)[i] = decode_sv (dec);	806	AvARRAY (av)[i] = decode_sv (dec);
634	}	807	}
…		…
644		817
645	static void	818	static void
646	decode_he (dec_t *dec, HV *hv)	819	decode_he (dec_t *dec, HV *hv)
647	{	820	{
648	// for speed reasons, we specialcase single-string	821	// for speed reasons, we specialcase single-string
649	// byte or utf-8 strings as keys.	822	// byte or utf-8 strings as keys, but only when !stringref
650		823
651	if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27)	824	if (ecb_expect_true (!dec->stringref))
		825	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
652	{	826	{
653	I32 len = decode_uint (dec);	827	STRLEN len = decode_uint (dec);
654	char *key = (char *)dec->cur;	828	char *key = (char *)dec->cur;
655		829
		830	WANT (len);
656	dec->cur += len;	831	dec->cur += len;
657		832
658	if (ecb_expect_false (dec->stringref))
659	av_push (dec->stringref, newSVpvn (key, len));
660
661	hv_store (hv, key, len, decode_sv (dec), 0);	833	hv_store (hv, key, len, decode_sv (dec), 0);
		834
		835	return;
662	}	836	}
663	else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27)	837	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
664	{	838	{
665	I32 len = decode_uint (dec);	839	STRLEN len = decode_uint (dec);
666	char *key = (char *)dec->cur;	840	char *key = (char *)dec->cur;
667		841
		842	WANT (len);
668	dec->cur += len;	843	dec->cur += len;
669		844
670	if (ecb_expect_false (dec->stringref))	845	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
671	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	846	if (!is_utf8_string (key, len))
		847	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
672		848
673	hv_store (hv, key, -len, decode_sv (dec), 0);	849	hv_store (hv, key, -len, decode_sv (dec), 0);
		850
		851	return;
674	}	852	}
675	else	853
676	{
677	SV *k = decode_sv (dec);	854	SV *k = decode_sv (dec);
678	SV *v = decode_sv (dec);	855	SV *v = decode_sv (dec);
679		856
		857	// we leak memory if uncaught exceptions are thrown by random magical
		858	// methods, and this is hopefully the only place where it can happen,
		859	// so if there is a chance of an exception, take the very slow path.
		860	// since catching exceptions is "undocumented/internal/forbidden" by
		861	// the new p5p powers, we need to call out to a perl function :/
		862	if (ecb_expect_false (SvAMAGIC (k)))
		863	{
		864	dSP;
		865
		866	ENTER; SAVETMPS;
		867	PUSHMARK (SP);
		868	EXTEND (SP, 3);
		869	PUSHs (sv_2mortal (newRV_inc ((SV *)hv)));
		870	PUSHs (sv_2mortal (k));
		871	PUSHs (sv_2mortal (v));
		872
		873	PUTBACK;
		874	call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL);
		875	SPAGAIN;
		876
		877	FREETMPS; LEAVE;
		878
		879	if (SvTRUE (ERRSV))
		880	ERR_ERRSV;
		881
		882	return;
		883	}
		884
680	hv_store_ent (hv, k, v, 0);	885	hv_store_ent (hv, k, v, 0);
681	SvREFCNT_dec (k);	886	SvREFCNT_dec (k);
682	}	887
		888	fail:
		889	;
683	}	890	}
684		891
685	static SV *	892	static SV *
686	decode_hv (dec_t *dec)	893	decode_hv (dec_t *dec)
687	{	894	{
688	HV *hv = newHV ();	895	HV *hv = newHV ();
689		896
690	DEC_INC_DEPTH;	897	DEC_INC_DEPTH;
691		898
692	if ((*dec->cur & 31) == 31)	899	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
693	{	900	{
694	++dec->cur;	901	++dec->cur;
695		902
696	for (;;)	903	for (;;)
697	{	904	{
698	WANT (1);	905	WANT (1);
699		906
700	if (*dec->cur == (0xe0 | 31))	907	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
701	{	908	{
702	++dec->cur;	909	++dec->cur;
703	break;	910	break;
704	}	911	}
705		912
706	decode_he (dec, hv);	913	decode_he (dec, hv);
707	}	914	}
708	}	915	}
709	else	916	else
710	{	917	{
711	int pairs = decode_uint (dec);	918	UV pairs = decode_uint (dec);
		919
		920	WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes
712		921
713	while (pairs--)	922	while (pairs--)
714	decode_he (dec, hv);	923	decode_he (dec, hv);
715	}	924	}
716		925
…		…
726	static SV *	935	static SV *
727	decode_str (dec_t *dec, int utf8)	936	decode_str (dec_t *dec, int utf8)
728	{	937	{
729	SV *sv = 0;	938	SV *sv = 0;
730		939
731	if ((*dec->cur & 31) == 31)	940	if ((*dec->cur & MINOR_MASK) == MINOR_INDEF)
732	{	941	{
		942	// indefinite length strings
733	++dec->cur;	943	++dec->cur;
734		944
		945	U8 major = *dec->cur & MAJOR_MISC;
		946
735	sv = newSVpvn ("", 0);	947	sv = newSVpvn ("", 0);
736		948
737	// not very fast, and certainly not robust against illegal input
738	for (;;)	949	for (;;)
739	{	950	{
740	WANT (1);	951	WANT (1);
741		952
742	if (*dec->cur == (0xe0 | 31))	953	if ((*dec->cur - major) > LENGTH_EXT8)
		954	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
743	{	955	{
744	++dec->cur;	956	++dec->cur;
745	break;	957	break;
746	}	958	}
		959	else
		960	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
747		961
748	sv_catsv (sv, decode_sv (dec));	962	STRLEN len = decode_uint (dec);
		963
		964	WANT (len);
		965	sv_catpvn (sv, dec->cur, len);
		966	dec->cur += len;
749	}	967	}
750	}	968	}
751	else	969	else
752	{	970	{
753	STRLEN len = decode_uint (dec);	971	STRLEN len = decode_uint (dec);
754		972
755	WANT (len);	973	WANT (len);
756	sv = newSVpvn (dec->cur, len);	974	sv = newSVpvn (dec->cur, len);
757	dec->cur += len;	975	dec->cur += len;
		976
		977	if (ecb_expect_false (dec->stringref)
		978	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
		979	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
758	}	980	}
759		981
760	if (utf8)	982	if (utf8)
		983	{
		984	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		985	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		986	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		987
761	SvUTF8_on (sv);	988	SvUTF8_on (sv);
762		989	}
763	if (ecb_expect_false (dec->stringref))
764	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
765		990
766	return sv;	991	return sv;
767		992
768	fail:	993	fail:
769	SvREFCNT_dec (sv);	994	SvREFCNT_dec (sv);
…		…
788	sv = newRV_noinc (decode_sv (dec));	1013	sv = newRV_noinc (decode_sv (dec));
789	break;	1014	break;
790		1015
791	case CBOR_TAG_STRINGREF_NAMESPACE:	1016	case CBOR_TAG_STRINGREF_NAMESPACE:
792	{	1017	{
		1018	// do nmot use SAVETMPS/FREETMPS, as these will
		1019	// erase mortalised caches, e.g. "shareable"
793	ENTER; SAVETMPS;	1020	ENTER;
794		1021
795	SAVESPTR (dec->stringref);	1022	SAVESPTR (dec->stringref);
796	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());	1023	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
797		1024
798	sv = decode_sv (dec);	1025	sv = decode_sv (dec);
799		1026
800	FREETMPS; LEAVE;	1027	LEAVE;
801	}	1028	}
802	break;	1029	break;
803		1030
804	case CBOR_TAG_STRINGREF:	1031	case CBOR_TAG_STRINGREF:
805	{	1032	{
806	if ((*dec->cur >> 5) != 0)	1033	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
807	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	1034	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
808		1035
809	UV idx = decode_uint (dec);	1036	UV idx = decode_uint (dec);
810		1037
811	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))	1038	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))
…		…
818	case CBOR_TAG_VALUE_SHAREABLE:	1045	case CBOR_TAG_VALUE_SHAREABLE:
819	{	1046	{
820	if (ecb_expect_false (!dec->shareable))	1047	if (ecb_expect_false (!dec->shareable))
821	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());	1048	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
822		1049
		1050	if (dec->cbor.flags & F_ALLOW_CYCLES)
		1051	{
823	sv = newSV (0);	1052	sv = newSV (0);
824	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	1053	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
825		1054
826	SV *osv = decode_sv (dec);	1055	SV *osv = decode_sv (dec);
827	sv_setsv (sv, osv);	1056	sv_setsv (sv, osv);
828	SvREFCNT_dec_NN (osv);	1057	SvREFCNT_dec_NN (osv);
		1058	}
		1059	else
		1060	{
		1061	av_push (dec->shareable, &PL_sv_undef);
		1062	int idx = AvFILLp (dec->shareable);
		1063	sv = decode_sv (dec);
		1064	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		1065	}
829	}	1066	}
830	break;	1067	break;
831		1068
832	case CBOR_TAG_VALUE_SHAREDREF:	1069	case CBOR_TAG_VALUE_SHAREDREF:
833	{	1070	{
834	if ((*dec->cur >> 5) != 0)	1071	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
835	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	1072	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
836		1073
837	UV idx = decode_uint (dec);	1074	UV idx = decode_uint (dec);
838		1075
839	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))	1076	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))
840	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1077	ERR ("corrupted CBOR data (sharedref index out of bounds)");
841		1078
842	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	1079	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1080
		1081	if (sv == &PL_sv_undef)
		1082	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
843	}	1083	}
844	break;	1084	break;
845		1085
846	case CBOR_TAG_PERL_OBJECT:	1086	case CBOR_TAG_PERL_OBJECT:
847	{	1087	{
		1088	if (dec->cbor.flags & F_FORBID_OBJECTS)
		1089	goto filter;
		1090
848	sv = decode_sv (dec);	1091	sv = decode_sv (dec);
849		1092
850	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1093	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
851	ERR ("corrupted CBOR data (non-array perl object)");	1094	ERR ("corrupted CBOR data (non-array perl object)");
852		1095
…		…
862	if (!method)	1105	if (!method)
863	ERR ("cannot decode perl-object (package does not have a THAW method)");	1106	ERR ("cannot decode perl-object (package does not have a THAW method)");
864		1107
865	dSP;	1108	dSP;
866		1109
867	ENTER; SAVETMPS; PUSHMARK (SP);	1110	ENTER; SAVETMPS;
		1111	PUSHMARK (SP);
868	EXTEND (SP, len + 1);	1112	EXTEND (SP, len + 1);
869	// we re-bless the reference to get overload and other niceties right	1113	// we re-bless the reference to get overload and other niceties right
870	PUSHs (*av_fetch (av, 0, 1));	1114	PUSHs (*av_fetch (av, 0, 1));
871	PUSHs (sv_cbor);	1115	PUSHs (sv_cbor);
872		1116
…		…
880	SPAGAIN;	1124	SPAGAIN;
881		1125
882	if (SvTRUE (ERRSV))	1126	if (SvTRUE (ERRSV))
883	{	1127	{
884	FREETMPS; LEAVE;	1128	FREETMPS; LEAVE;
885	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1129	ERR_ERRSV;
886	}	1130	}
887		1131
888	SvREFCNT_dec (sv);	1132	SvREFCNT_dec (sv);
889	sv = SvREFCNT_inc (POPs);	1133	sv = SvREFCNT_inc (POPs);
890		1134
…		…
893	FREETMPS; LEAVE;	1137	FREETMPS; LEAVE;
894	}	1138	}
895	break;	1139	break;
896		1140
897	default:	1141	default:
		1142	filter:
898	{	1143	{
		1144	SV *tag_sv = newSVuv (tag);
		1145
899	sv = decode_sv (dec);	1146	sv = decode_sv (dec);
900		1147
		1148	dSP;
		1149	ENTER; SAVETMPS;
		1150	SAVESTACK_POS ();
		1151	PUSHMARK (SP);
		1152	EXTEND (SP, 2);
		1153	PUSHs (tag_sv);
		1154	PUSHs (sv);
		1155
		1156	PUTBACK;
		1157	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);
		1158	SPAGAIN;
		1159
		1160	if (SvTRUE (ERRSV))
		1161	{
		1162	SvREFCNT_dec (tag_sv);
		1163	FREETMPS; LEAVE;
		1164	ERR_ERRSV;
		1165	}
		1166
		1167	if (count)
		1168	{
		1169	SvREFCNT_dec (tag_sv);
		1170	SvREFCNT_dec (sv);
		1171	sv = SvREFCNT_inc (POPs);
		1172	}
		1173	else
		1174	{
901	AV *av = newAV ();	1175	AV *av = newAV ();
902	av_push (av, newSVuv (tag));	1176	av_push (av, tag_sv);
903	av_push (av, sv);	1177	av_push (av, sv);
904		1178
905	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1179	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
906	? cbor_tagged_stash	1180	? cbor_tagged_stash
907	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1181	: gv_stashpv ("CBOR::XS::Tagged" , 1);
908
909	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1182	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
		1183	}
		1184
		1185	PUTBACK;
		1186
		1187	FREETMPS; LEAVE;
910	}	1188	}
911	break;	1189	break;
912	}	1190	}
913		1191
914	return sv;	1192	return sv;
…		…
921	static SV *	1199	static SV *
922	decode_sv (dec_t *dec)	1200	decode_sv (dec_t *dec)
923	{	1201	{
924	WANT (1);	1202	WANT (1);
925		1203
926	switch (*dec->cur >> 5)	1204	switch (*dec->cur >> MAJOR_SHIFT)
927	{	1205	{
928	case 0: // unsigned int	1206	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
929	return newSVuv (decode_uint (dec));	1207	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
930	case 1: // negative int	1208	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
931	return newSViv (-1 - (IV)decode_uint (dec));	1209	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
932	case 2: // octet string	1210	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
933	return decode_str (dec, 0);	1211	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
934	case 3: // utf-8 string	1212	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
935	return decode_str (dec, 1);	1213
936	case 4: // array	1214	case MAJOR_MISC >> MAJOR_SHIFT:
937	return decode_av (dec);
938	case 5: // map
939	return decode_hv (dec);
940	case 6: // tag
941	return decode_tagged (dec);
942	case 7: // misc
943	switch (*dec->cur++ & 31)	1215	switch (*dec->cur++ & MINOR_MASK)
944	{	1216	{
945	case 20:	1217	case SIMPLE_FALSE:
946	#if CBOR_SLOW	1218	#if CBOR_SLOW
947	types_false = get_bool ("Types::Serialiser::false");	1219	types_false = get_bool ("Types::Serialiser::false");
948	#endif	1220	#endif
949	return newSVsv (types_false);	1221	return newSVsv (types_false);
950	case 21:	1222	case SIMPLE_TRUE:
951	#if CBOR_SLOW	1223	#if CBOR_SLOW
952	types_true = get_bool ("Types::Serialiser::true");	1224	types_true = get_bool ("Types::Serialiser::true");
953	#endif	1225	#endif
954	return newSVsv (types_true);	1226	return newSVsv (types_true);
955	case 22:	1227	case SIMPLE_NULL:
956	return newSVsv (&PL_sv_undef);	1228	return newSVsv (&PL_sv_undef);
957	case 23:	1229	case SIMPLE_UNDEF:
958	#if CBOR_SLOW	1230	#if CBOR_SLOW
959	types_error = get_bool ("Types::Serialiser::error");	1231	types_error = get_bool ("Types::Serialiser::error");
960	#endif	1232	#endif
961	return newSVsv (types_error);	1233	return newSVsv (types_error);
962		1234
963	case 25:	1235	case MISC_FLOAT16:
964	{	1236	{
965	WANT (2);	1237	WANT (2);
966		1238
967	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1239	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
968	dec->cur += 2;	1240	dec->cur += 2;
969		1241
970	return newSVnv (ecb_binary16_to_float (fp));	1242	return newSVnv (ecb_binary16_to_float (fp));
971	}	1243	}
972		1244
973	case 26:	1245	case MISC_FLOAT32:
974	{	1246	{
975	uint32_t fp;	1247	uint32_t fp;
976	WANT (4);	1248	WANT (4);
977	memcpy (&fp, dec->cur, 4);	1249	memcpy (&fp, dec->cur, 4);
978	dec->cur += 4;	1250	dec->cur += 4;
…		…
981	fp = ecb_bswap32 (fp);	1253	fp = ecb_bswap32 (fp);
982		1254
983	return newSVnv (ecb_binary32_to_float (fp));	1255	return newSVnv (ecb_binary32_to_float (fp));
984	}	1256	}
985		1257
986	case 27:	1258	case MISC_FLOAT64:
987	{	1259	{
988	uint64_t fp;	1260	uint64_t fp;
989	WANT (8);	1261	WANT (8);
990	memcpy (&fp, dec->cur, 8);	1262	memcpy (&fp, dec->cur, 8);
991	dec->cur += 8;	1263	dec->cur += 8;
…		…
994	fp = ecb_bswap64 (fp);	1266	fp = ecb_bswap64 (fp);
995		1267
996	return newSVnv (ecb_binary64_to_double (fp));	1268	return newSVnv (ecb_binary64_to_double (fp));
997	}	1269	}
998		1270
999	// 0..19 unassigned	1271	// 0..19 unassigned simple
1000	// 24 reserved + unassigned (reserved values are not encodable)	1272	// 24 reserved + unassigned simple (reserved values are not encodable)
		1273	// 28-30 unassigned misc
		1274	// 31 break code
1001	default:	1275	default:
1002	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1276	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1003	}	1277	}
1004		1278
1005	break;	1279	break;
1006	}	1280	}
1007		1281
…		…
1010	}	1284	}
1011		1285
1012	static SV *	1286	static SV *
1013	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1287	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
1014	{	1288	{
1015	dec_t dec = { };	1289	dec_t dec = { 0 };
1016	SV *sv;	1290	SV *sv;
1017	STRLEN len;	1291	STRLEN len;
1018	char *data = SvPVbyte (string, len);	1292	char *data = SvPVbyte (string, len);
1019		1293
1020	if (len > cbor->max_size && cbor->max_size)	1294	if (len > cbor->max_size && cbor->max_size)
…		…
1034	if (dec.cur != dec.end && !dec.err)	1308	if (dec.cur != dec.end && !dec.err)
1035	dec.err = "garbage after CBOR object";	1309	dec.err = "garbage after CBOR object";
1036		1310
1037	if (dec.err)	1311	if (dec.err)
1038	{	1312	{
		1313	if (dec.shareable)
		1314	{
		1315	// need to break cyclic links, which would all be in shareable
		1316	int i;
		1317	SV **svp;
		1318
		1319	for (i = av_len (dec.shareable) + 1; i--; )
		1320	if ((svp = av_fetch (dec.shareable, i, 0)))
		1321	sv_setsv (*svp, &PL_sv_undef);
		1322	}
		1323
1039	SvREFCNT_dec (sv);	1324	SvREFCNT_dec (sv);
		1325
		1326	if (dec.err_sv)
		1327	sv_2mortal (dec.err_sv);
		1328
1040	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);	1329	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);
1041	}	1330	}
1042		1331
1043	sv = sv_2mortal (sv);	1332	sv = sv_2mortal (sv);
1044		1333
1045	return sv;	1334	return sv;
1046	}	1335	}
1047		1336
		1337	/////////////////////////////////////////////////////////////////////////////
		1338	// incremental parser
		1339
		1340	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1341
		1342	// returns 0 for notyet, 1 for success or error
		1343	static int
		1344	incr_parse (CBOR *self, SV *cborstr)
		1345	{
		1346	STRLEN cur;
		1347	SvPV (cborstr, cur);
		1348
		1349	while (ecb_expect_true (self->incr_need <= cur))
		1350	{
		1351	// table of integer count bytes
		1352	static I8 incr_len[MINOR_MASK + 1] = {
		1353	0, 0, 0, 0, 0, 0, 0, 0,
		1354	0, 0, 0, 0, 0, 0, 0, 0,
		1355	0, 0, 0, 0, 0, 0, 0, 0,
		1356	1, 2, 4, 8,-1,-1,-1,-2
		1357	};
		1358
		1359	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1360	U8 m = *p & MINOR_MASK;
		1361	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1362	I8 ilen = incr_len[m];
		1363
		1364	self->incr_need = self->incr_pos + 1;
		1365
		1366	if (ecb_expect_false (ilen < 0))
		1367	{
		1368	if (m != MINOR_INDEF)
		1369	return 1; // error
		1370
		1371	if (*p == (MAJOR_MISC | MINOR_INDEF))
		1372	{
		1373	if (count >= 0)
		1374	return 1; // error
		1375
		1376	count = 1;
		1377	}
		1378	else
		1379	{
		1380	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1381	count = -1;
		1382	}
		1383	}
		1384	else
		1385	{
		1386	self->incr_need += ilen;
		1387	if (ecb_expect_false (self->incr_need > cur))
		1388	return 0;
		1389
		1390	int major = *p >> MAJOR_SHIFT;
		1391
		1392	switch (major)
		1393	{
		1394	case MAJOR_TAG >> MAJOR_SHIFT:
		1395	++count; // tags merely prefix another value
		1396	break;
		1397
		1398	case MAJOR_BYTES >> MAJOR_SHIFT:
		1399	case MAJOR_TEXT >> MAJOR_SHIFT:
		1400	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1401	case MAJOR_MAP >> MAJOR_SHIFT:
		1402	{
		1403	UV len;
		1404
		1405	if (ecb_expect_false (ilen))
		1406	{
		1407	len = 0;
		1408
		1409	do {
		1410	len = (len << 8) | *++p;
		1411	} while (--ilen);
		1412	}
		1413	else
		1414	len = m;
		1415
		1416	switch (major)
		1417	{
		1418	case MAJOR_BYTES >> MAJOR_SHIFT:
		1419	case MAJOR_TEXT >> MAJOR_SHIFT:
		1420	self->incr_need += len;
		1421	if (ecb_expect_false (self->incr_need > cur))
		1422	return 0;
		1423
		1424	break;
		1425
		1426	case MAJOR_MAP >> MAJOR_SHIFT:
		1427	len <<= 1;
		1428	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1429	if (len)
		1430	{
		1431	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1432	count = len + 1;
		1433	}
		1434	break;
		1435	}
		1436	}
		1437	}
		1438	}
		1439
		1440	self->incr_pos = self->incr_need;
		1441
		1442	if (count > 0)
		1443	{
		1444	while (!--count)
		1445	{
		1446	if (!AvFILLp (self->incr_count))
		1447	return 1; // done
		1448
		1449	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1450	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1451	}
		1452
		1453	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1454	}
		1455	}
		1456
		1457	return 0;
		1458	}
		1459
		1460
1048	/////////////////////////////////////////////////////////////////////////////	1461	/////////////////////////////////////////////////////////////////////////////
1049	// XS interface functions	1462	// XS interface functions
1050		1463
1051	MODULE = CBOR::XS PACKAGE = CBOR::XS	1464	MODULE = CBOR::XS PACKAGE = CBOR::XS
1052		1465
…		…
1060		1473
1061	types_true = get_bool ("Types::Serialiser::true" );	1474	types_true = get_bool ("Types::Serialiser::true" );
1062	types_false = get_bool ("Types::Serialiser::false");	1475	types_false = get_bool ("Types::Serialiser::false");
1063	types_error = get_bool ("Types::Serialiser::error");	1476	types_error = get_bool ("Types::Serialiser::error");
1064		1477
		1478	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
		1479
1065	sv_cbor = newSVpv ("CBOR", 0);	1480	sv_cbor = newSVpv ("CBOR", 0);
1066	SvREADONLY_on (sv_cbor);	1481	SvREADONLY_on (sv_cbor);
		1482
		1483	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1067	}	1484	}
1068		1485
1069	PROTOTYPES: DISABLE	1486	PROTOTYPES: DISABLE
1070		1487
1071	void CLONE (...)	1488	void CLONE (...)
…		…
1090	void shrink (CBOR *self, int enable = 1)	1507	void shrink (CBOR *self, int enable = 1)
1091	ALIAS:	1508	ALIAS:
1092	shrink = F_SHRINK	1509	shrink = F_SHRINK
1093	allow_unknown = F_ALLOW_UNKNOWN	1510	allow_unknown = F_ALLOW_UNKNOWN
1094	allow_sharing = F_ALLOW_SHARING	1511	allow_sharing = F_ALLOW_SHARING
1095	dedup_keys = F_DEDUP_KEYS	1512	allow_cycles = F_ALLOW_CYCLES
		1513	forbid_objects = F_FORBID_OBJECTS
1096	dedup_strings = F_DEDUP_STRINGS	1514	pack_strings = F_PACK_STRINGS
		1515	text_keys = F_TEXT_KEYS
		1516	text_strings = F_TEXT_STRINGS
		1517	validate_utf8 = F_VALIDATE_UTF8
1097	PPCODE:	1518	PPCODE:
1098	{	1519	{
1099	if (enable)	1520	if (enable)
1100	self->flags |= ix;	1521	self->flags |= ix;
1101	else	1522	else
…		…
1107	void get_shrink (CBOR *self)	1528	void get_shrink (CBOR *self)
1108	ALIAS:	1529	ALIAS:
1109	get_shrink = F_SHRINK	1530	get_shrink = F_SHRINK
1110	get_allow_unknown = F_ALLOW_UNKNOWN	1531	get_allow_unknown = F_ALLOW_UNKNOWN
1111	get_allow_sharing = F_ALLOW_SHARING	1532	get_allow_sharing = F_ALLOW_SHARING
1112	get_dedup_keys = F_DEDUP_KEYS	1533	get_allow_cycles = F_ALLOW_CYCLES
		1534	get_forbid_objects = F_FORBID_OBJECTS
1113	get_dedup_strings = F_DEDUP_STRINGS	1535	get_pack_strings = F_PACK_STRINGS
		1536	get_text_keys = F_TEXT_KEYS
		1537	get_text_strings = F_TEXT_STRINGS
		1538	get_validate_utf8 = F_VALIDATE_UTF8
1114	PPCODE:	1539	PPCODE:
1115	XPUSHs (boolSV (self->flags & ix));	1540	XPUSHs (boolSV (self->flags & ix));
1116		1541
1117	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1542	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1118	PPCODE:	1543	PPCODE:
…		…
1131	XPUSHs (ST (0));	1556	XPUSHs (ST (0));
1132		1557
1133	int get_max_size (CBOR *self)	1558	int get_max_size (CBOR *self)
1134	CODE:	1559	CODE:
1135	RETVAL = self->max_size;	1560	RETVAL = self->max_size;
		1561	OUTPUT:
		1562	RETVAL
		1563
		1564	void filter (CBOR *self, SV *filter = 0)
		1565	PPCODE:
		1566	SvREFCNT_dec (self->filter);
		1567	self->filter = filter ? newSVsv (filter) : filter;
		1568	XPUSHs (ST (0));
		1569
		1570	SV *get_filter (CBOR *self)
		1571	CODE:
		1572	RETVAL = self->filter ? self->filter : NEWSV (0, 0);
1136	OUTPUT:	1573	OUTPUT:
1137	RETVAL	1574	RETVAL
1138		1575
1139	void encode (CBOR *self, SV *scalar)	1576	void encode (CBOR *self, SV *scalar)
1140	PPCODE:	1577	PPCODE:
…		…
1155	EXTEND (SP, 2);	1592	EXTEND (SP, 2);
1156	PUSHs (sv);	1593	PUSHs (sv);
1157	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1594	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1158	}	1595	}
1159		1596
		1597	void incr_parse (CBOR *self, SV *cborstr)
		1598	ALIAS:
		1599	incr_parse_multiple = 1
		1600	PPCODE:
		1601	{
		1602	if (SvUTF8 (cborstr))
		1603	sv_utf8_downgrade (cborstr, 0);
		1604
		1605	if (!self->incr_count)
		1606	{
		1607	self->incr_count = newAV ();
		1608	self->incr_pos = 0;
		1609	self->incr_need = 1;
		1610
		1611	av_push (self->incr_count, newSViv (1));
		1612	}
		1613
		1614	do
		1615	{
		1616	if (!incr_parse (self, cborstr))
		1617	{
		1618	if (self->incr_need > self->max_size && self->max_size)
		1619	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1620	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1621
		1622	break;
		1623	}
		1624
		1625	SV *sv;
		1626	char *offset;
		1627
		1628	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1629	XPUSHs (sv);
		1630
		1631	sv_chop (cborstr, offset);
		1632
		1633	av_clear (self->incr_count);
		1634	av_push (self->incr_count, newSViv (1));
		1635
		1636	self->incr_pos = 0;
		1637	self->incr_need = self->incr_pos + 1;
		1638	}
		1639	while (ix);
		1640	}
		1641
		1642	void incr_reset (CBOR *self)
		1643	CODE:
		1644	{
		1645	SvREFCNT_dec (self->incr_count);
		1646	self->incr_count = 0;
		1647	}
		1648
		1649	void DESTROY (CBOR *self)
		1650	PPCODE:
		1651	cbor_free (self);
		1652
1160	PROTOTYPES: ENABLE	1653	PROTOTYPES: ENABLE
1161		1654
1162	void encode_cbor (SV *scalar)	1655	void encode_cbor (SV *scalar)
		1656	ALIAS:
		1657	encode_cbor = 0
		1658	encode_cbor_sharing = F_ALLOW_SHARING
1163	PPCODE:	1659	PPCODE:
1164	{	1660	{
1165	CBOR cbor;	1661	CBOR cbor;
1166	cbor_init (&cbor);	1662	cbor_init (&cbor);
		1663	cbor.flags |= ix;
1167	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1664	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1168	XPUSHs (scalar);	1665	XPUSHs (scalar);
1169	}	1666	}
1170		1667
1171	void decode_cbor (SV *cborstr)	1668	void decode_cbor (SV *cborstr)

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