ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/CBOR-XS/XS.xs

Comparing CBOR-XS/XS.xs (file contents):
Revision 1.20 by root, Wed Nov 20 11:06:42 2013 UTC vs.
Revision 1.64 by root, Tue Jun 27 02:03:24 2017 UTC

…		…
6	#include <string.h>	6	#include <string.h>
7	#include <stdlib.h>	7	#include <stdlib.h>
8	#include <stdio.h>	8	#include <stdio.h>
9	#include <limits.h>	9	#include <limits.h>
10	#include <float.h>	10	#include <float.h>
		11	#include <inttypes.h>
11		12
		13	#define ECB_NO_THREADS 1
12	#include "ecb.h"	14	#include "ecb.h"
13		15
14	// compatibility with perl <5.18	16	// compatibility with perl <5.18
15	#ifndef HvNAMELEN_get	17	#ifndef HvNAMELEN_get
16	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))	18	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
…		…
19	# define HvNAMELEN(hv) HvNAMELEN_get (hv)	21	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
20	#endif	22	#endif
21	#ifndef HvNAMEUTF8	23	#ifndef HvNAMEUTF8
22	# define HvNAMEUTF8(hv) 0	24	# define HvNAMEUTF8(hv) 0
23	#endif	25	#endif
		26	#ifndef SvREFCNT_inc_NN
		27	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		28	#endif
		29	#ifndef SvREFCNT_dec_NN
		30	# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
		31	#endif
		32
		33	// known major and minor types
		34	enum cbor_type
		35	{
		36	MAJOR_SHIFT = 5,
		37	MINOR_MASK = 0x1f,
		38
		39	MAJOR_POS_INT = 0 << MAJOR_SHIFT,
		40	MAJOR_NEG_INT = 1 << MAJOR_SHIFT,
		41	MAJOR_BYTES = 2 << MAJOR_SHIFT,
		42	MAJOR_TEXT = 3 << MAJOR_SHIFT,
		43	MAJOR_ARRAY = 4 << MAJOR_SHIFT,
		44	MAJOR_MAP = 5 << MAJOR_SHIFT,
		45	MAJOR_TAG = 6 << MAJOR_SHIFT,
		46	MAJOR_MISC = 7 << MAJOR_SHIFT,
		47
		48	// INT/STRING/ARRAY/MAP subtypes
		49	LENGTH_EXT1 = 24,
		50	LENGTH_EXT2 = 25,
		51	LENGTH_EXT4 = 26,
		52	LENGTH_EXT8 = 27,
		53
		54	// SIMPLE types (effectively MISC subtypes)
		55	SIMPLE_FALSE = 20,
		56	SIMPLE_TRUE = 21,
		57	SIMPLE_NULL = 22,
		58	SIMPLE_UNDEF = 23,
		59
		60	// MISC subtype (unused)
		61	MISC_EXT1 = 24,
		62	MISC_FLOAT16 = 25,
		63	MISC_FLOAT32 = 26,
		64	MISC_FLOAT64 = 27,
		65
		66	// BYTES/TEXT/ARRAY/MAP
		67	MINOR_INDEF = 31,
		68	};
24		69
25	// known tags	70	// known tags
26	enum cbor_tag	71	enum cbor_tag
27	{	72	{
28	// inofficial extensions (pending iana registration)	73	// extensions
		74	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
29	CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object	75	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
30	CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object	76	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
31	CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing	77	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
32	CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing	78	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
33	CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref	79	CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref
34	CBOR_TAG_STRINGREF = 28, // http://cbor.schmorp.de/stringref
35	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection	80	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
36		81
37	// rfc7049	82	// rfc7049
38	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	83	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
39	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	84	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
40	CBOR_TAG_POS_BIGNUM = 2, // byte string	85	CBOR_TAG_POS_BIGNUM = 2, // byte string
41	CBOR_TAG_NEG_BIGNUM = 3, // byte string	86	CBOR_TAG_NEG_BIGNUM = 3, // byte string
42	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	87	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
43	CBOR_TAG_BIGFLOAT = 5, // array	88	CBOR_TAG_BIGFLOAT = 5, // array
44		89
45	CBOR_TAG_CONV_B64U = 21, // base64url, any	90	CBOR_TAG_CONV_B64U = 21, // base64url, any
46	CBOR_TAG_CONV_B64 = 22, // base64, any	91	CBOR_TAG_CONV_B64 = 22, // base64, any
47	CBOR_TAG_CONV_HEX = 23, // base16, any	92	CBOR_TAG_CONV_HEX = 23, // base16, any
48	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	93	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
49		94
50	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	95	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
51	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	96	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
52	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	97	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
53	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	98	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
54	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	99	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
55		100
56	CBOR_TAG_MAGIC = 55799 // self-describe cbor	101	CBOR_TAG_MAGIC = 55799, // self-describe cbor
57	};	102	};
58		103
59	#define F_SHRINK 0x00000001UL	104	#define F_SHRINK 0x00000001UL
60	#define F_ALLOW_UNKNOWN 0x00000002UL	105	#define F_ALLOW_UNKNOWN 0x00000002UL
61	#define F_ALLOW_SHARING 0x00000004UL //TODO	106	#define F_ALLOW_SHARING 0x00000004UL
		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
…		…
122	SvPV_shrink_to_cur (sv);	184	SvPV_shrink_to_cur (sv);
123	#elif defined (SvPV_renew)	185	#elif defined (SvPV_renew)
124	SvPV_renew (sv, SvCUR (sv) + 1);	186	SvPV_renew (sv, SvCUR (sv) + 1);
125	#endif	187	#endif
126	}	188	}
		189	}
		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;
127	}	200	}
128		201
129	/////////////////////////////////////////////////////////////////////////////	202	/////////////////////////////////////////////////////////////////////////////
130	// encoder	203	// encoder
131		204
…		…
144	} enc_t;	217	} enc_t;
145		218
146	ecb_inline void	219	ecb_inline void
147	need (enc_t *enc, STRLEN len)	220	need (enc_t *enc, STRLEN len)
148	{	221	{
149	if (ecb_expect_false (enc->cur + len >= enc->end))	222	if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len))
150	{	223	{
151	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);	224	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
152	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	225	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
153	enc->cur = SvPVX (enc->sv) + cur;	226	enc->cur = SvPVX (enc->sv) + cur;
154	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	227	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
…		…
165	static void	238	static void
166	encode_uint (enc_t *enc, int major, UV len)	239	encode_uint (enc_t *enc, int major, UV len)
167	{	240	{
168	need (enc, 9);	241	need (enc, 9);
169		242
170	if (len < 24)	243	if (ecb_expect_true (len < LENGTH_EXT1))
171	*enc->cur++ = major | len;	244	*enc->cur++ = major | len;
172	else if (len <= 0xff)	245	else if (ecb_expect_true (len <= 0xffU))
173	{	246	{
174	*enc->cur++ = major | 24;	247	*enc->cur++ = major | LENGTH_EXT1;
175	*enc->cur++ = len;	248	*enc->cur++ = len;
176	}	249	}
177	else if (len <= 0xffff)	250	else if (len <= 0xffffU)
178	{	251	{
179	*enc->cur++ = major | 25;	252	*enc->cur++ = major | LENGTH_EXT2;
180	*enc->cur++ = len >> 8;	253	*enc->cur++ = len >> 8;
181	*enc->cur++ = len;	254	*enc->cur++ = len;
182	}	255	}
183	else if (len <= 0xffffffff)	256	else if (len <= 0xffffffffU)
184	{	257	{
185	*enc->cur++ = major | 26;	258	*enc->cur++ = major | LENGTH_EXT4;
186	*enc->cur++ = len >> 24;	259	*enc->cur++ = len >> 24;
187	*enc->cur++ = len >> 16;	260	*enc->cur++ = len >> 16;
188	*enc->cur++ = len >> 8;	261	*enc->cur++ = len >> 8;
189	*enc->cur++ = len;	262	*enc->cur++ = len;
190	}	263	}
191	else	264	else
192	{	265	{
193	*enc->cur++ = major | 27;	266	*enc->cur++ = major | LENGTH_EXT8;
194	*enc->cur++ = len >> 56;	267	*enc->cur++ = len >> 56;
195	*enc->cur++ = len >> 48;	268	*enc->cur++ = len >> 48;
196	*enc->cur++ = len >> 40;	269	*enc->cur++ = len >> 40;
197	*enc->cur++ = len >> 32;	270	*enc->cur++ = len >> 32;
198	*enc->cur++ = len >> 24;	271	*enc->cur++ = len >> 24;
…		…
200	*enc->cur++ = len >> 8;	273	*enc->cur++ = len >> 8;
201	*enc->cur++ = len;	274	*enc->cur++ = len;
202	}	275	}
203	}	276	}
204		277
205	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
206	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)	286	encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len)
207	{	287	{
208	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);
209	need (enc, len);	318	need (enc, len);
210	memcpy (enc->cur, str, len);	319	memcpy (enc->cur, str, len);
211	enc->cur += len;	320	enc->cur += len;
212	}	321	}
213		322
214	ecb_inline void	323	ecb_inline void
215	encode_tag (enc_t *enc, UV tag)	324	encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
216	{	325	{
217	encode_uint (enc, 0xc0, tag);	326	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
		327	{
		328	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
		329
		330	if (SvOK (*svp))
		331	{
		332	// already registered, use stringref
		333	encode_tag (enc, CBOR_TAG_STRINGREF);
		334	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		335	return;
		336	}
		337	else if (len >= minimum_string_length (enc->stringref_idx))
		338	{
		339	// register only
		340	sv_setuv (*svp, enc->stringref_idx);
		341	++enc->stringref_idx;
		342	}
		343	}
		344
		345	encode_str (enc, upgrade_utf8, utf8, str, len);
218	}	346	}
219		347
220	static void encode_sv (enc_t *enc, SV *sv);	348	static void encode_sv (enc_t *enc, SV *sv);
221		349
222	static void	350	static void
…		…
227	if (enc->depth >= enc->cbor.max_depth)	355	if (enc->depth >= enc->cbor.max_depth)
228	croak (ERR_NESTING_EXCEEDED);	356	croak (ERR_NESTING_EXCEEDED);
229		357
230	++enc->depth;	358	++enc->depth;
231		359
232	encode_uint (enc, 0x80, len + 1);	360	encode_uint (enc, MAJOR_ARRAY, len + 1);
233		361
		362	if (ecb_expect_false (SvMAGICAL (av)))
234	for (i = 0; i <= len; ++i)	363	for (i = 0; i <= len; ++i)
235	{	364	{
236	SV **svp = av_fetch (av, i, 0);	365	SV **svp = av_fetch (av, i, 0);
237	encode_sv (enc, svp ? *svp : &PL_sv_undef);	366	encode_sv (enc, svp ? *svp : &PL_sv_undef);
238	}	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	}
239		374
240	--enc->depth;	375	--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	}	376	}
251		377
252	static void	378	static void
253	encode_hv (enc_t *enc, HV *hv)	379	encode_hv (enc_t *enc, HV *hv)
254	{	380	{
…		…
260	++enc->depth;	386	++enc->depth;
261		387
262	int pairs = hv_iterinit (hv);	388	int pairs = hv_iterinit (hv);
263	int mg = SvMAGICAL (hv);	389	int mg = SvMAGICAL (hv);
264		390
265	if (mg)	391	if (ecb_expect_false (mg))
266	encode_ch (enc, 0xa0 | 31);	392	encode_ch (enc, MAJOR_MAP | MINOR_INDEF);
267	else	393	else
268	encode_uint (enc, 0xa0, pairs);	394	encode_uint (enc, MAJOR_MAP, pairs);
269		395
270	while ((he = hv_iternext (hv)))	396	while ((he = hv_iternext (hv)))
271	{	397	{
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)	398	if (HeKLEN (he) == HEf_SVKEY)
277	svp = hv_fetch_ent (enc->stringref[!! SvUTF8 (HeSVKEY (he))], HeSVKEY (he) , 1, 0);//TODO return HE :/	399	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	400	else
294	encode_he (enc, he);	401	encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he));
295		402
296	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));
297	}	404	}
298		405
299	if (mg)	406	if (ecb_expect_false (mg))
300	encode_ch (enc, 0xe0 | 31);	407	encode_ch (enc, MAJOR_MISC | MINOR_INDEF);
301		408
302	--enc->depth;	409	--enc->depth;
303	}	410	}
304		411
305	// encode objects, arrays and special \0=false and \1=true values.	412	// encode objects, arrays and special \0=false and \1=true values.
306	static void	413	static void
307	encode_rv (enc_t *enc, SV *sv)	414	encode_rv (enc_t *enc, SV *sv)
308	{	415	{
309	SvGETMAGIC (sv);	416	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		417
333	svtype svt = SvTYPE (sv);	418	svtype svt = SvTYPE (sv);
334		419
335	if (ecb_expect_false (SvOBJECT (sv)))	420	if (ecb_expect_false (SvOBJECT (sv)))
336	{	421	{
…		…
343	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	428	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
344	? cbor_tagged_stash	429	? cbor_tagged_stash
345	: gv_stashpv ("CBOR::XS::Tagged" , 1);	430	: gv_stashpv ("CBOR::XS::Tagged" , 1);
346		431
347	HV *stash = SvSTASH (sv);	432	HV *stash = SvSTASH (sv);
348	GV *method;
349		433
350	if (stash == boolean_stash)	434	if (stash == boolean_stash)
351	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	}
352	else if (stash == error_stash)	439	else if (stash == error_stash)
353	encode_ch (enc, 0xe0 | 23);	440	{
		441	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
		442	return;
		443	}
354	else if (stash == tagged_stash)	444	else if (stash == tagged_stash)
355	{	445	{
356	if (svt != SVt_PVAV)	446	if (svt != SVt_PVAV)
357	croak ("encountered CBOR::XS::Tagged object that isn't an array");	447	croak ("encountered CBOR::XS::Tagged object that isn't an array");
358		448
359	encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));	449	encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
360	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))
361	}	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))));
362	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	486	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
363	{	487	{
364	dSP;	488	dSP;
365		489
366	ENTER; SAVETMPS; PUSHMARK (SP);	490	ENTER; SAVETMPS;
		491	PUSHMARK (SP);
367	// 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
368	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	493	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
369		494
370	PUTBACK;	495	PUTBACK;
371	// G_SCALAR ensures that return value is 1	496	// G_SCALAR ensures that return value is 1
…		…
384	}	509	}
385	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	510	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
386	{	511	{
387	dSP;	512	dSP;
388		513
389	ENTER; SAVETMPS; PUSHMARK (SP);	514	ENTER; SAVETMPS;
		515	SAVESTACK_POS ();
		516	PUSHMARK (SP);
390	EXTEND (SP, 2);	517	EXTEND (SP, 2);
391	// 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
392	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	519	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
393	PUSHs (sv_cbor);	520	PUSHs (sv_cbor);
394		521
…		…
399	// catch this surprisingly common error	526	// catch this surprisingly common error
400	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	527	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));	528	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
402		529
403	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	530	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
404	encode_uint (enc, 0x80, count + 1);	531	encode_uint (enc, MAJOR_ARRAY, count + 1);
405	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	532	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
406		533
407	while (count)	534	while (count)
408	encode_sv (enc, SP[1 - count--]);	535	encode_sv (enc, SP[1 - count--]);
409		536
410	PUTBACK;	537	PUTBACK;
…		…
431	{	558	{
432	double nv = SvNVX (sv);	559	double nv = SvNVX (sv);
433		560
434	need (enc, 9);	561	need (enc, 9);
435		562
436	if (ecb_expect_false (nv == (U32)nv))	563	if (ecb_expect_false (nv == (NV)(U32)nv))
437	encode_uint (enc, 0x00, (U32)nv);	564	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
438	//TODO: maybe I32?	565	//TODO: maybe I32?
439	else if (ecb_expect_false (nv == (float)nv))	566	else if (ecb_expect_false (nv == (float)nv))
440	{	567	{
		568	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
		569
441	uint32_t fp = ecb_float_to_binary32 (nv);	570	uint32_t fp = ecb_float_to_binary32 (nv);
442
443	*enc->cur++ = 0xe0 | 26;
444		571
445	if (!ecb_big_endian ())	572	if (!ecb_big_endian ())
446	fp = ecb_bswap32 (fp);	573	fp = ecb_bswap32 (fp);
447		574
448	memcpy (enc->cur, &fp, 4);	575	memcpy (enc->cur, &fp, 4);
449	enc->cur += 4;	576	enc->cur += 4;
450	}	577	}
451	else	578	else
452	{	579	{
		580	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
		581
453	uint64_t fp = ecb_double_to_binary64 (nv);	582	uint64_t fp = ecb_double_to_binary64 (nv);
454
455	*enc->cur++ = 0xe0 | 27;
456		583
457	if (!ecb_big_endian ())	584	if (!ecb_big_endian ())
458	fp = ecb_bswap64 (fp);	585	fp = ecb_bswap64 (fp);
459		586
460	memcpy (enc->cur, &fp, 8);	587	memcpy (enc->cur, &fp, 8);
…		…
469		596
470	if (SvPOKp (sv))	597	if (SvPOKp (sv))
471	{	598	{
472	STRLEN len;	599	STRLEN len;
473	char *str = SvPV (sv, len);	600	char *str = SvPV (sv, len);
474	encode_str (enc, SvUTF8 (sv), str, len);	601	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
475	}	602	}
476	else if (SvNOKp (sv))	603	else if (SvNOKp (sv))
477	encode_nv (enc, sv);	604	encode_nv (enc, sv);
478	else if (SvIOKp (sv))	605	else if (SvIOKp (sv))
479	{	606	{
480	if (SvIsUV (sv))	607	if (SvIsUV (sv))
481	encode_uint (enc, 0x00, SvUVX (sv));	608	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
482	else if (SvIVX (sv) >= 0)	609	else if (SvIVX (sv) >= 0)
483	encode_uint (enc, 0x00, SvIVX (sv));	610	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
484	else	611	else
485	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	612	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
486	}	613	}
487	else if (SvROK (sv))	614	else if (SvROK (sv))
488	encode_rv (enc, SvRV (sv));	615	encode_rv (enc, SvRV (sv));
489	else if (!SvOK (sv))	616	else if (!SvOK (sv))
490	encode_ch (enc, 0xe0 | 22);	617	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
491	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	618	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
492	encode_ch (enc, 0xe0 | 23);	619	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
493	else	620	else
494	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",
495	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	622	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
496	}	623	}
497		624
498	static SV *	625	static SV *
499	encode_cbor (SV *scalar, CBOR *cbor)	626	encode_cbor (SV *scalar, CBOR *cbor)
500	{	627	{
501	enc_t enc = { };	628	enc_t enc = { 0 };
502		629
503	enc.cbor = *cbor;	630	enc.cbor = *cbor;
504	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	631	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
505	enc.cur = SvPVX (enc.sv);	632	enc.cur = SvPVX (enc.sv);
506	enc.end = SvEND (enc.sv);	633	enc.end = SvEND (enc.sv);
507		634
508	SvPOK_only (enc.sv);	635	SvPOK_only (enc.sv);
509		636
510	if (cbor->flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS))	637	if (cbor->flags & F_PACK_STRINGS)
511	{	638	{
512	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	639	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
513	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());	640	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
514	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());	641	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
515	}	642	}
…		…
537	CBOR cbor;	664	CBOR cbor;
538	U32 depth; // recursion depth	665	U32 depth; // recursion depth
539	U32 maxdepth; // recursion depth limit	666	U32 maxdepth; // recursion depth limit
540	AV *shareable;	667	AV *shareable;
541	AV *stringref;	668	AV *stringref;
		669	SV *decode_tagged;
		670	SV *err_sv; // optional sv for error, needs to be freed
542	} dec_t;	671	} dec_t;
543		672
544	#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);
545		680
546	#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;
547		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
548	#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)
549	#define DEC_DEC_DEPTH --dec->depth	710	#define DEC_DEC_DEPTH --dec->depth
550		711
551	static UV	712	static UV
552	decode_uint (dec_t *dec)	713	decode_uint (dec_t *dec)
553	{	714	{
554	switch (*dec->cur & 31)	715	U8 m = *dec->cur & MINOR_MASK;
555	{	716	++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		717
561	case 24:	718	if (ecb_expect_true (m < LENGTH_EXT1))
		719	return m;
		720	else if (ecb_expect_true (m == LENGTH_EXT1))
		721	{
562	WANT (2);	722	WANT (1);
563	dec->cur += 2;	723	dec->cur += 1;
564	return dec->cur[-1];	724	return dec->cur[-1];
565		725	}
566	case 25:	726	else if (ecb_expect_true (m == LENGTH_EXT2))
		727	{
567	WANT (3);	728	WANT (2);
568	dec->cur += 3;	729	dec->cur += 2;
569	return (((UV)dec->cur[-2]) << 8)	730	return (((UV)dec->cur[-2]) << 8)
570	| ((UV)dec->cur[-1]);	731	| ((UV)dec->cur[-1]);
571		732	}
572	case 26:	733	else if (ecb_expect_true (m == LENGTH_EXT4))
		734	{
573	WANT (5);	735	WANT (4);
574	dec->cur += 5;	736	dec->cur += 4;
575	return (((UV)dec->cur[-4]) << 24)	737	return (((UV)dec->cur[-4]) << 24)
576	| (((UV)dec->cur[-3]) << 16)	738	| (((UV)dec->cur[-3]) << 16)
577	| (((UV)dec->cur[-2]) << 8)	739	| (((UV)dec->cur[-2]) << 8)
578	| ((UV)dec->cur[-1]);	740	| ((UV)dec->cur[-1]);
579		741	}
580	case 27:	742	else if (ecb_expect_true (m == LENGTH_EXT8))
		743	{
581	WANT (9);	744	WANT (8);
582	dec->cur += 9;	745	dec->cur += 8;
		746
		747	return
		748	#if UVSIZE < 8
		749	0
		750	#else
583	return (((UV)dec->cur[-8]) << 56)	751	(((UV)dec->cur[-8]) << 56)
584	| (((UV)dec->cur[-7]) << 48)	752	| (((UV)dec->cur[-7]) << 48)
585	| (((UV)dec->cur[-6]) << 40)	753	| (((UV)dec->cur[-6]) << 40)
586	| (((UV)dec->cur[-5]) << 32)	754	| (((UV)dec->cur[-5]) << 32)
		755	#endif
587	| (((UV)dec->cur[-4]) << 24)	756	| (((UV)dec->cur[-4]) << 24)
588	| (((UV)dec->cur[-3]) << 16)	757	| (((UV)dec->cur[-3]) << 16)
589	| (((UV)dec->cur[-2]) << 8)	758	| (((UV)dec->cur[-2]) << 8)
590	| ((UV)dec->cur[-1]);	759	| ((UV)dec->cur[-1]);
591		760	}
592	default:	761	else
593	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	762	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
594	}
595		763
596	fail:	764	fail:
597	return 0;	765	return 0;
598	}	766	}
599		767
…		…
604	{	772	{
605	AV *av = newAV ();	773	AV *av = newAV ();
606		774
607	DEC_INC_DEPTH;	775	DEC_INC_DEPTH;
608		776
609	if ((*dec->cur & 31) == 31)	777	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
610	{	778	{
611	++dec->cur;	779	++dec->cur;
612		780
613	for (;;)	781	for (;;)
614	{	782	{
615	WANT (1);	783	WANT (1);
616		784
617	if (*dec->cur == (0xe0 | 31))	785	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
618	{	786	{
619	++dec->cur;	787	++dec->cur;
620	break;	788	break;
621	}	789	}
622		790
623	av_push (av, decode_sv (dec));	791	av_push (av, decode_sv (dec));
624	}	792	}
625	}	793	}
626	else	794	else
627	{	795	{
628	int i, len = decode_uint (dec);	796	UV i, len = decode_uint (dec);
629		797
		798	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);	799	av_fill (av, len - 1);
631		800
632	for (i = 0; i < len; ++i)	801	for (i = 0; i < len; ++i)
633	AvARRAY (av)[i] = decode_sv (dec);	802	AvARRAY (av)[i] = decode_sv (dec);
634	}	803	}
635		804
636	DEC_DEC_DEPTH;	805	DEC_DEC_DEPTH;
637	return newRV_noinc ((SV *)av);	806	return newRV_noinc ((SV *)av);
638		807
639	fail:	808	fail:
640	SvREFCNT_dec (av);	809	SvREFCNT_dec_NN (av);
641	DEC_DEC_DEPTH;	810	DEC_DEC_DEPTH;
642	return &PL_sv_undef;	811	return &PL_sv_undef;
643	}	812	}
644		813
645	static void	814	static void
646	decode_he (dec_t *dec, HV *hv)	815	decode_he (dec_t *dec, HV *hv)
647	{	816	{
648	// for speed reasons, we specialcase single-string	817	// for speed reasons, we specialcase single-string
649	// byte or utf-8 strings as keys.	818	// byte or utf-8 strings as keys, but only when !stringref
650		819
651	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))
652	{	822	{
653	I32 len = decode_uint (dec);	823	STRLEN len = decode_uint (dec);
654	char *key = (char *)dec->cur;	824	char *key = (char *)dec->cur;
655		825
		826	WANT (len);
656	dec->cur += len;	827	dec->cur += len;
657		828
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);	829	hv_store (hv, key, len, decode_sv (dec), 0);
		830
		831	return;
662	}	832	}
663	else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27)	833	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
664	{	834	{
665	I32 len = decode_uint (dec);	835	STRLEN len = decode_uint (dec);
666	char *key = (char *)dec->cur;	836	char *key = (char *)dec->cur;
667		837
		838	WANT (len);
668	dec->cur += len;	839	dec->cur += len;
669		840
670	if (ecb_expect_false (dec->stringref))	841	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
671	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	842	if (!is_utf8_string (key, len))
		843	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
672		844
673	hv_store (hv, key, -len, decode_sv (dec), 0);	845	hv_store (hv, key, -len, decode_sv (dec), 0);
		846
		847	return;
674	}	848	}
675	else	849
676	{
677	SV *k = decode_sv (dec);	850	SV *k = decode_sv (dec);
678	SV *v = decode_sv (dec);	851	SV *v = decode_sv (dec);
679		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
680	hv_store_ent (hv, k, v, 0);	881	hv_store_ent (hv, k, v, 0);
681	SvREFCNT_dec (k);	882	SvREFCNT_dec_NN (k);
682	}	883
		884	fail:
		885	;
683	}	886	}
684		887
685	static SV *	888	static SV *
686	decode_hv (dec_t *dec)	889	decode_hv (dec_t *dec)
687	{	890	{
688	HV *hv = newHV ();	891	HV *hv = newHV ();
689		892
690	DEC_INC_DEPTH;	893	DEC_INC_DEPTH;
691		894
692	if ((*dec->cur & 31) == 31)	895	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
693	{	896	{
694	++dec->cur;	897	++dec->cur;
695		898
696	for (;;)	899	for (;;)
697	{	900	{
698	WANT (1);	901	WANT (1);
699		902
700	if (*dec->cur == (0xe0 | 31))	903	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
701	{	904	{
702	++dec->cur;	905	++dec->cur;
703	break;	906	break;
704	}	907	}
705		908
706	decode_he (dec, hv);	909	decode_he (dec, hv);
707	}	910	}
708	}	911	}
709	else	912	else
710	{	913	{
711	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
712		917
713	while (pairs--)	918	while (pairs--)
714	decode_he (dec, hv);	919	decode_he (dec, hv);
715	}	920	}
716		921
717	DEC_DEC_DEPTH;	922	DEC_DEC_DEPTH;
718	return newRV_noinc ((SV *)hv);	923	return newRV_noinc ((SV *)hv);
719		924
720	fail:	925	fail:
721	SvREFCNT_dec (hv);	926	SvREFCNT_dec_NN (hv);
722	DEC_DEC_DEPTH;	927	DEC_DEC_DEPTH;
723	return &PL_sv_undef;	928	return &PL_sv_undef;
724	}	929	}
725		930
726	static SV *	931	static SV *
727	decode_str (dec_t *dec, int utf8)	932	decode_str (dec_t *dec, int utf8)
728	{	933	{
729	SV *sv = 0;	934	SV *sv = 0;
730		935
731	if ((*dec->cur & 31) == 31)	936	if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF))
732	{	937	{
		938	// indefinite length strings
733	++dec->cur;	939	++dec->cur;
734		940
		941	U8 major = *dec->cur & MAJOR_MISC;
		942
735	sv = newSVpvn ("", 0);	943	sv = newSVpvn ("", 0);
736		944
737	// not very fast, and certainly not robust against illegal input
738	for (;;)	945	for (;;)
739	{	946	{
740	WANT (1);	947	WANT (1);
741		948
742	if (*dec->cur == (0xe0 | 31))	949	if ((*dec->cur - major) > LENGTH_EXT8)
		950	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
743	{	951	{
744	++dec->cur;	952	++dec->cur;
745	break;	953	break;
746	}	954	}
		955	else
		956	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
747		957
748	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;
749	}	963	}
750	}	964	}
751	else	965	else
752	{	966	{
753	STRLEN len = decode_uint (dec);	967	STRLEN len = decode_uint (dec);
754		968
755	WANT (len);	969	WANT (len);
756	sv = newSVpvn (dec->cur, len);	970	sv = newSVpvn (dec->cur, len);
757	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));
758	}	976	}
759		977
760	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
761	SvUTF8_on (sv);	984	SvUTF8_on (sv);
762		985	}
763	if (ecb_expect_false (dec->stringref))
764	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
765		986
766	return sv;	987	return sv;
767		988
768	fail:	989	fail:
769	SvREFCNT_dec (sv);	990	SvREFCNT_dec (sv);
…		…
788	sv = newRV_noinc (decode_sv (dec));	1009	sv = newRV_noinc (decode_sv (dec));
789	break;	1010	break;
790		1011
791	case CBOR_TAG_STRINGREF_NAMESPACE:	1012	case CBOR_TAG_STRINGREF_NAMESPACE:
792	{	1013	{
		1014	// do not use SAVETMPS/FREETMPS, as these will
		1015	// erase mortalised caches, e.g. "shareable"
793	ENTER; SAVETMPS;	1016	ENTER;
794		1017
795	SAVESPTR (dec->stringref);	1018	SAVESPTR (dec->stringref);
796	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());	1019	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
797		1020
798	sv = decode_sv (dec);	1021	sv = decode_sv (dec);
799		1022
800	FREETMPS; LEAVE;	1023	LEAVE;
801	}	1024	}
802	break;	1025	break;
803		1026
804	case CBOR_TAG_STRINGREF:	1027	case CBOR_TAG_STRINGREF:
805	{	1028	{
806	if ((*dec->cur >> 5) != 0)	1029	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
807	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	1030	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
808		1031
809	UV idx = decode_uint (dec);	1032	UV idx = decode_uint (dec);
810		1033
811	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))	1034	if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref)))
812	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");	1035	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");
813		1036
814	sv = newSVsv (AvARRAY (dec->stringref)[idx]);	1037	sv = newSVsv (AvARRAY (dec->stringref)[idx]);
815	}	1038	}
816	break;	1039	break;
…		…
818	case CBOR_TAG_VALUE_SHAREABLE:	1041	case CBOR_TAG_VALUE_SHAREABLE:
819	{	1042	{
820	if (ecb_expect_false (!dec->shareable))	1043	if (ecb_expect_false (!dec->shareable))
821	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());	1044	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
822		1045
		1046	if (dec->cbor.flags & F_ALLOW_CYCLES)
		1047	{
823	sv = newSV (0);	1048	sv = newSV (0);
824	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	1049	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
825		1050
826	SV *osv = decode_sv (dec);	1051	SV *osv = decode_sv (dec);
827	sv_setsv (sv, osv);	1052	sv_setsv (sv, osv);
828	SvREFCNT_dec_NN (osv);	1053	SvREFCNT_dec_NN (osv);
		1054	}
		1055	else
		1056	{
		1057	av_push (dec->shareable, &PL_sv_undef);
		1058	int idx = AvFILLp (dec->shareable);
		1059	sv = decode_sv (dec);
		1060	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		1061	}
829	}	1062	}
830	break;	1063	break;
831		1064
832	case CBOR_TAG_VALUE_SHAREDREF:	1065	case CBOR_TAG_VALUE_SHAREDREF:
833	{	1066	{
834	if ((*dec->cur >> 5) != 0)	1067	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
835	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	1068	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
836		1069
837	UV idx = decode_uint (dec);	1070	UV idx = decode_uint (dec);
838		1071
839	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))	1072	if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable)))
840	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1073	ERR ("corrupted CBOR data (sharedref index out of bounds)");
841		1074
842	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	1075	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1076
		1077	if (sv == &PL_sv_undef)
		1078	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
843	}	1079	}
844	break;	1080	break;
845		1081
846	case CBOR_TAG_PERL_OBJECT:	1082	case CBOR_TAG_PERL_OBJECT:
847	{	1083	{
		1084	if (dec->cbor.flags & F_FORBID_OBJECTS)
		1085	goto filter;
		1086
848	sv = decode_sv (dec);	1087	sv = decode_sv (dec);
849		1088
850	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1089	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
851	ERR ("corrupted CBOR data (non-array perl object)");	1090	ERR ("corrupted CBOR data (non-array perl object)");
852		1091
…		…
862	if (!method)	1101	if (!method)
863	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)");
864		1103
865	dSP;	1104	dSP;
866		1105
867	ENTER; SAVETMPS; PUSHMARK (SP);	1106	ENTER; SAVETMPS;
		1107	PUSHMARK (SP);
868	EXTEND (SP, len + 1);	1108	EXTEND (SP, len + 1);
869	// 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
870	PUSHs (*av_fetch (av, 0, 1));	1110	PUSHs (*av_fetch (av, 0, 1));
871	PUSHs (sv_cbor);	1111	PUSHs (sv_cbor);
872		1112
…		…
880	SPAGAIN;	1120	SPAGAIN;
881		1121
882	if (SvTRUE (ERRSV))	1122	if (SvTRUE (ERRSV))
883	{	1123	{
884	FREETMPS; LEAVE;	1124	FREETMPS; LEAVE;
885	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1125	ERR_ERRSV;
886	}	1126	}
887		1127
888	SvREFCNT_dec (sv);	1128	SvREFCNT_dec_NN (sv);
889	sv = SvREFCNT_inc (POPs);	1129	sv = SvREFCNT_inc (POPs);
890		1130
891	PUTBACK;	1131	PUTBACK;
892		1132
893	FREETMPS; LEAVE;	1133	FREETMPS; LEAVE;
894	}	1134	}
895	break;	1135	break;
896		1136
897	default:	1137	default:
		1138	filter:
898	{	1139	{
		1140	SV *tag_sv = newSVuv (tag);
		1141
899	sv = decode_sv (dec);	1142	sv = decode_sv (dec);
900		1143
		1144	dSP;
		1145	ENTER; SAVETMPS;
		1146	SAVESTACK_POS ();
		1147	PUSHMARK (SP);
		1148	EXTEND (SP, 2);
		1149	PUSHs (tag_sv);
		1150	PUSHs (sv);
		1151
		1152	PUTBACK;
		1153	int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL);
		1154	SPAGAIN;
		1155
		1156	if (SvTRUE (ERRSV))
		1157	{
		1158	SvREFCNT_dec_NN (tag_sv);
		1159	FREETMPS; LEAVE;
		1160	ERR_ERRSV;
		1161	}
		1162
		1163	if (count)
		1164	{
		1165	SvREFCNT_dec_NN (tag_sv);
		1166	SvREFCNT_dec_NN (sv);
		1167	sv = SvREFCNT_inc_NN (POPs);
		1168	}
		1169	else
		1170	{
901	AV *av = newAV ();	1171	AV *av = newAV ();
902	av_push (av, newSVuv (tag));	1172	av_push (av, tag_sv);
903	av_push (av, sv);	1173	av_push (av, sv);
904		1174
905	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1175	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
906	? cbor_tagged_stash	1176	? cbor_tagged_stash
907	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1177	: gv_stashpv ("CBOR::XS::Tagged" , 1);
908
909	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1178	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
		1179	}
		1180
		1181	PUTBACK;
		1182
		1183	FREETMPS; LEAVE;
910	}	1184	}
911	break;	1185	break;
912	}	1186	}
913		1187
914	return sv;	1188	return sv;
…		…
921	static SV *	1195	static SV *
922	decode_sv (dec_t *dec)	1196	decode_sv (dec_t *dec)
923	{	1197	{
924	WANT (1);	1198	WANT (1);
925		1199
926	switch (*dec->cur >> 5)	1200	switch (*dec->cur >> MAJOR_SHIFT)
927	{	1201	{
928	case 0: // unsigned int	1202	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
929	return newSVuv (decode_uint (dec));	1203	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
930	case 1: // negative int	1204	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
931	return newSViv (-1 - (IV)decode_uint (dec));	1205	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
932	case 2: // octet string	1206	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
933	return decode_str (dec, 0);	1207	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
934	case 3: // utf-8 string	1208	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
935	return decode_str (dec, 1);	1209
936	case 4: // array	1210	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)	1211	switch (*dec->cur++ & MINOR_MASK)
944	{	1212	{
945	case 20:	1213	case SIMPLE_FALSE:
946	#if CBOR_SLOW	1214	#if CBOR_SLOW
947	types_false = get_bool ("Types::Serialiser::false");	1215	types_false = get_bool ("Types::Serialiser::false");
948	#endif	1216	#endif
949	return newSVsv (types_false);	1217	return newSVsv (types_false);
950	case 21:	1218	case SIMPLE_TRUE:
951	#if CBOR_SLOW	1219	#if CBOR_SLOW
952	types_true = get_bool ("Types::Serialiser::true");	1220	types_true = get_bool ("Types::Serialiser::true");
953	#endif	1221	#endif
954	return newSVsv (types_true);	1222	return newSVsv (types_true);
955	case 22:	1223	case SIMPLE_NULL:
956	return newSVsv (&PL_sv_undef);	1224	return newSVsv (&PL_sv_undef);
957	case 23:	1225	case SIMPLE_UNDEF:
958	#if CBOR_SLOW	1226	#if CBOR_SLOW
959	types_error = get_bool ("Types::Serialiser::error");	1227	types_error = get_bool ("Types::Serialiser::error");
960	#endif	1228	#endif
961	return newSVsv (types_error);	1229	return newSVsv (types_error);
962		1230
963	case 25:	1231	case MISC_FLOAT16:
964	{	1232	{
965	WANT (2);	1233	WANT (2);
966		1234
967	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1235	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
968	dec->cur += 2;	1236	dec->cur += 2;
969		1237
970	return newSVnv (ecb_binary16_to_float (fp));	1238	return newSVnv (ecb_binary16_to_float (fp));
971	}	1239	}
972		1240
973	case 26:	1241	case MISC_FLOAT32:
974	{	1242	{
975	uint32_t fp;	1243	uint32_t fp;
976	WANT (4);	1244	WANT (4);
977	memcpy (&fp, dec->cur, 4);	1245	memcpy (&fp, dec->cur, 4);
978	dec->cur += 4;	1246	dec->cur += 4;
…		…
981	fp = ecb_bswap32 (fp);	1249	fp = ecb_bswap32 (fp);
982		1250
983	return newSVnv (ecb_binary32_to_float (fp));	1251	return newSVnv (ecb_binary32_to_float (fp));
984	}	1252	}
985		1253
986	case 27:	1254	case MISC_FLOAT64:
987	{	1255	{
988	uint64_t fp;	1256	uint64_t fp;
989	WANT (8);	1257	WANT (8);
990	memcpy (&fp, dec->cur, 8);	1258	memcpy (&fp, dec->cur, 8);
991	dec->cur += 8;	1259	dec->cur += 8;
…		…
994	fp = ecb_bswap64 (fp);	1262	fp = ecb_bswap64 (fp);
995		1263
996	return newSVnv (ecb_binary64_to_double (fp));	1264	return newSVnv (ecb_binary64_to_double (fp));
997	}	1265	}
998		1266
999	// 0..19 unassigned	1267	// 0..19 unassigned simple
1000	// 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
1001	default:	1271	default:
1002	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1272	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1003	}	1273	}
1004		1274
1005	break;	1275	break;
1006	}	1276	}
1007		1277
…		…
1010	}	1280	}
1011		1281
1012	static SV *	1282	static SV *
1013	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1283	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
1014	{	1284	{
1015	dec_t dec = { };	1285	dec_t dec = { 0 };
1016	SV *sv;	1286	SV *sv;
1017	STRLEN len;	1287	STRLEN len;
1018	char *data = SvPVbyte (string, len);	1288	char *data = SvPVbyte (string, len);
1019		1289
1020	if (len > cbor->max_size && cbor->max_size)	1290	if (len > cbor->max_size && cbor->max_size)
…		…
1034	if (dec.cur != dec.end && !dec.err)	1304	if (dec.cur != dec.end && !dec.err)
1035	dec.err = "garbage after CBOR object";	1305	dec.err = "garbage after CBOR object";
1036		1306
1037	if (dec.err)	1307	if (dec.err)
1038	{	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
1039	SvREFCNT_dec (sv);	1320	SvREFCNT_dec_NN (sv);
		1321
		1322	if (dec.err_sv)
		1323	sv_2mortal (dec.err_sv);
		1324
1040	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);
1041	}	1326	}
1042		1327
1043	sv = sv_2mortal (sv);	1328	sv = sv_2mortal (sv);
1044		1329
1045	return sv;	1330	return sv;
1046	}	1331	}
1047		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
1048	/////////////////////////////////////////////////////////////////////////////	1457	/////////////////////////////////////////////////////////////////////////////
1049	// XS interface functions	1458	// XS interface functions
1050		1459
1051	MODULE = CBOR::XS PACKAGE = CBOR::XS	1460	MODULE = CBOR::XS PACKAGE = CBOR::XS
1052		1461
…		…
1060		1469
1061	types_true = get_bool ("Types::Serialiser::true" );	1470	types_true = get_bool ("Types::Serialiser::true" );
1062	types_false = get_bool ("Types::Serialiser::false");	1471	types_false = get_bool ("Types::Serialiser::false");
1063	types_error = get_bool ("Types::Serialiser::error");	1472	types_error = get_bool ("Types::Serialiser::error");
1064		1473
		1474	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
		1475
1065	sv_cbor = newSVpv ("CBOR", 0);	1476	sv_cbor = newSVpv ("CBOR", 0);
1066	SvREADONLY_on (sv_cbor);	1477	SvREADONLY_on (sv_cbor);
		1478
		1479	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1067	}	1480	}
1068		1481
1069	PROTOTYPES: DISABLE	1482	PROTOTYPES: DISABLE
1070		1483
1071	void CLONE (...)	1484	void CLONE (...)
…		…
1090	void shrink (CBOR *self, int enable = 1)	1503	void shrink (CBOR *self, int enable = 1)
1091	ALIAS:	1504	ALIAS:
1092	shrink = F_SHRINK	1505	shrink = F_SHRINK
1093	allow_unknown = F_ALLOW_UNKNOWN	1506	allow_unknown = F_ALLOW_UNKNOWN
1094	allow_sharing = F_ALLOW_SHARING	1507	allow_sharing = F_ALLOW_SHARING
1095	dedup_keys = F_DEDUP_KEYS	1508	allow_cycles = F_ALLOW_CYCLES
		1509	forbid_objects = F_FORBID_OBJECTS
1096	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
1097	PPCODE:	1514	PPCODE:
1098	{	1515	{
1099	if (enable)	1516	if (enable)
1100	self->flags |= ix;	1517	self->flags |= ix;
1101	else	1518	else
…		…
1107	void get_shrink (CBOR *self)	1524	void get_shrink (CBOR *self)
1108	ALIAS:	1525	ALIAS:
1109	get_shrink = F_SHRINK	1526	get_shrink = F_SHRINK
1110	get_allow_unknown = F_ALLOW_UNKNOWN	1527	get_allow_unknown = F_ALLOW_UNKNOWN
1111	get_allow_sharing = F_ALLOW_SHARING	1528	get_allow_sharing = F_ALLOW_SHARING
1112	get_dedup_keys = F_DEDUP_KEYS	1529	get_allow_cycles = F_ALLOW_CYCLES
		1530	get_forbid_objects = F_FORBID_OBJECTS
1113	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
1114	PPCODE:	1535	PPCODE:
1115	XPUSHs (boolSV (self->flags & ix));	1536	XPUSHs (boolSV (self->flags & ix));
1116		1537
1117	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1538	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1118	PPCODE:	1539	PPCODE:
…		…
1131	XPUSHs (ST (0));	1552	XPUSHs (ST (0));
1132		1553
1133	int get_max_size (CBOR *self)	1554	int get_max_size (CBOR *self)
1134	CODE:	1555	CODE:
1135	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);
1136	OUTPUT:	1569	OUTPUT:
1137	RETVAL	1570	RETVAL
1138		1571
1139	void encode (CBOR *self, SV *scalar)	1572	void encode (CBOR *self, SV *scalar)
1140	PPCODE:	1573	PPCODE:
…		…
1155	EXTEND (SP, 2);	1588	EXTEND (SP, 2);
1156	PUSHs (sv);	1589	PUSHs (sv);
1157	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1590	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1158	}	1591	}
1159		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
1160	PROTOTYPES: ENABLE	1649	PROTOTYPES: ENABLE
1161		1650
1162	void encode_cbor (SV *scalar)	1651	void encode_cbor (SV *scalar)
		1652	ALIAS:
		1653	encode_cbor = 0
		1654	encode_cbor_sharing = F_ALLOW_SHARING
1163	PPCODE:	1655	PPCODE:
1164	{	1656	{
1165	CBOR cbor;	1657	CBOR cbor;
1166	cbor_init (&cbor);	1658	cbor_init (&cbor);
		1659	cbor.flags |= ix;
1167	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1660	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1168	XPUSHs (scalar);	1661	XPUSHs (scalar);
1169	}	1662	}
1170		1663
1171	void decode_cbor (SV *cborstr)	1664	void decode_cbor (SV *cborstr)
…		…
1175	cbor_init (&cbor);	1668	cbor_init (&cbor);
1176	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;	1669	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;
1177	XPUSHs (cborstr);	1670	XPUSHs (cborstr);
1178	}	1671	}
1179		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

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines