ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/CBOR-XS/XS.xs

Comparing CBOR-XS/XS.xs (file contents):
Revision 1.21 by root, Wed Nov 20 14:59:06 2013 UTC vs.
Revision 1.65 by root, Thu Nov 15 19:52:41 2018 UTC

…		…
6	#include <string.h>	6	#include <string.h>
7	#include <stdlib.h>	7	#include <stdlib.h>
8	#include <stdio.h>	8	#include <stdio.h>
9	#include <limits.h>	9	#include <limits.h>
10	#include <float.h>	10	#include <float.h>
		11	#include <inttypes.h>
11		12
		13	#define ECB_NO_THREADS 1
12	#include "ecb.h"	14	#include "ecb.h"
13		15
14	// compatibility with perl <5.18	16	// compatibility with perl <5.18
15	#ifndef HvNAMELEN_get	17	#ifndef HvNAMELEN_get
16	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))	18	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
…		…
19	# define HvNAMELEN(hv) HvNAMELEN_get (hv)	21	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
20	#endif	22	#endif
21	#ifndef HvNAMEUTF8	23	#ifndef HvNAMEUTF8
22	# define HvNAMEUTF8(hv) 0	24	# define HvNAMEUTF8(hv) 0
23	#endif	25	#endif
		26	#ifndef SvREFCNT_inc_NN
		27	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		28	#endif
		29	#ifndef SvREFCNT_dec_NN
		30	# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
		31	#endif
		32
		33	// known major and minor types
		34	enum cbor_type
		35	{
		36	MAJOR_SHIFT = 5,
		37	MINOR_MASK = 0x1f,
		38
		39	MAJOR_POS_INT = 0 << MAJOR_SHIFT,
		40	MAJOR_NEG_INT = 1 << MAJOR_SHIFT,
		41	MAJOR_BYTES = 2 << MAJOR_SHIFT,
		42	MAJOR_TEXT = 3 << MAJOR_SHIFT,
		43	MAJOR_ARRAY = 4 << MAJOR_SHIFT,
		44	MAJOR_MAP = 5 << MAJOR_SHIFT,
		45	MAJOR_TAG = 6 << MAJOR_SHIFT,
		46	MAJOR_MISC = 7 << MAJOR_SHIFT,
		47
		48	// INT/STRING/ARRAY/MAP subtypes
		49	LENGTH_EXT1 = 24,
		50	LENGTH_EXT2 = 25,
		51	LENGTH_EXT4 = 26,
		52	LENGTH_EXT8 = 27,
		53
		54	// SIMPLE types (effectively MISC subtypes)
		55	SIMPLE_FALSE = 20,
		56	SIMPLE_TRUE = 21,
		57	SIMPLE_NULL = 22,
		58	SIMPLE_UNDEF = 23,
		59
		60	// MISC subtype (unused)
		61	MISC_EXT1 = 24,
		62	MISC_FLOAT16 = 25,
		63	MISC_FLOAT32 = 26,
		64	MISC_FLOAT64 = 27,
		65
		66	// BYTES/TEXT/ARRAY/MAP
		67	MINOR_INDEF = 31,
		68	};
24		69
25	// known tags	70	// known tags
26	enum cbor_tag	71	enum cbor_tag
27	{	72	{
28	// inofficial extensions (pending iana registration)	73	// extensions
		74	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
29	CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object	75	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
30	CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object	76	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
31	CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing	77	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
32	CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing	78	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
33	CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref	79	CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref
34	CBOR_TAG_STRINGREF = 28, // http://cbor.schmorp.de/stringref
35	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection	80	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
36		81
37	// rfc7049	82	// rfc7049
38	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	83	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
39	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	84	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
40	CBOR_TAG_POS_BIGNUM = 2, // byte string	85	CBOR_TAG_POS_BIGNUM = 2, // byte string
41	CBOR_TAG_NEG_BIGNUM = 3, // byte string	86	CBOR_TAG_NEG_BIGNUM = 3, // byte string
42	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	87	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
43	CBOR_TAG_BIGFLOAT = 5, // array	88	CBOR_TAG_BIGFLOAT = 5, // array
44		89
45	CBOR_TAG_CONV_B64U = 21, // base64url, any	90	CBOR_TAG_CONV_B64U = 21, // base64url, any
46	CBOR_TAG_CONV_B64 = 22, // base64, any	91	CBOR_TAG_CONV_B64 = 22, // base64, any
47	CBOR_TAG_CONV_HEX = 23, // base16, any	92	CBOR_TAG_CONV_HEX = 23, // base16, any
48	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	93	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
49		94
50	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	95	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
51	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	96	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
52	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	97	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
53	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	98	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
54	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	99	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
55		100
56	CBOR_TAG_MAGIC = 55799 // self-describe cbor	101	CBOR_TAG_MAGIC = 55799, // self-describe cbor
57	};	102	};
58		103
59	#define F_SHRINK 0x00000001UL	104	#define F_SHRINK 0x00000001UL
60	#define F_ALLOW_UNKNOWN 0x00000002UL	105	#define F_ALLOW_UNKNOWN 0x00000002UL
61	#define F_ALLOW_SHARING 0x00000004UL //TODO	106	#define F_ALLOW_SHARING 0x00000004UL
		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
		110	#define F_TEXT_KEYS 0x00000040UL
		111	#define F_TEXT_STRINGS 0x00000080UL
		112	#define F_VALIDATE_UTF8 0x00000100UL
63		113
64	#define INIT_SIZE 32 // initial scalar size to be allocated	114	#define INIT_SIZE 32 // initial scalar size to be allocated
65		115
66	#define SB do {	116	#define SB do {
67	#define SE } while (0)	117	#define SE } while (0)
…		…
79	# define CBOR_SLOW 0	129	# define CBOR_SLOW 0
80	# define CBOR_STASH cbor_stash	130	# define CBOR_STASH cbor_stash
81	#endif	131	#endif
82		132
83	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::	133	static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS::
84	static SV *types_true, *types_false, *types_error, *sv_cbor;	134	static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter;
85		135
86	typedef struct {	136	typedef struct {
87	U32 flags;	137	U32 flags;
88	U32 max_depth;	138	U32 max_depth;
89	STRLEN max_size;	139	STRLEN max_size;
		140	SV *filter;
		141
		142	// for the incremental parser
		143	STRLEN incr_pos; // the current offset into the text
		144	STRLEN incr_need; // minimum bytes needed to decode
		145	AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef.
90	} CBOR;	146	} CBOR;
91		147
92	ecb_inline void	148	ecb_inline void
93	cbor_init (CBOR *cbor)	149	cbor_init (CBOR *cbor)
94	{	150	{
95	Zero (cbor, 1, CBOR);	151	Zero (cbor, 1, CBOR);
96	cbor->max_depth = 512;	152	cbor->max_depth = 512;
		153	}
		154
		155	ecb_inline void
		156	cbor_free (CBOR *cbor)
		157	{
		158	SvREFCNT_dec (cbor->filter);
		159	SvREFCNT_dec (cbor->incr_count);
97	}	160	}
98		161
99	/////////////////////////////////////////////////////////////////////////////	162	/////////////////////////////////////////////////////////////////////////////
100	// utility functions	163	// utility functions
101		164
…		…
127		190
128	// minimum length of a string to be registered for stringref	191	// minimum length of a string to be registered for stringref
129	ecb_inline int	192	ecb_inline int
130	minimum_string_length (UV idx)	193	minimum_string_length (UV idx)
131	{	194	{
132	return idx > 23	195	return idx <= 23 ? 3
133	? idx > 0xffU	196	: idx <= 0xffU ? 4
134	? idx > 0xffffU	197	: idx <= 0xffffU ? 5
135	? idx > 0xffffffffU	198	: idx <= 0xffffffffU ? 7
136	? 7	199	: 11;
137	: 6
138	: 5
139	: 4
140	: 3;
141	}	200	}
142		201
143	/////////////////////////////////////////////////////////////////////////////	202	/////////////////////////////////////////////////////////////////////////////
144	// encoder	203	// encoder
145		204
…		…
158	} enc_t;	217	} enc_t;
159		218
160	ecb_inline void	219	ecb_inline void
161	need (enc_t *enc, STRLEN len)	220	need (enc_t *enc, STRLEN len)
162	{	221	{
163	if (ecb_expect_false (enc->cur + len >= enc->end))	222	if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len))
164	{	223	{
165	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);	224	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
166	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);	225	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
167	enc->cur = SvPVX (enc->sv) + cur;	226	enc->cur = SvPVX (enc->sv) + cur;
168	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	227	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
…		…
179	static void	238	static void
180	encode_uint (enc_t *enc, int major, UV len)	239	encode_uint (enc_t *enc, int major, UV len)
181	{	240	{
182	need (enc, 9);	241	need (enc, 9);
183		242
184	if (len < 24)	243	if (ecb_expect_true (len < LENGTH_EXT1))
185	*enc->cur++ = major | len;	244	*enc->cur++ = major | len;
186	else if (len <= 0xff)	245	else if (ecb_expect_true (len <= 0xffU))
187	{	246	{
188	*enc->cur++ = major | 24;	247	*enc->cur++ = major | LENGTH_EXT1;
189	*enc->cur++ = len;	248	*enc->cur++ = len;
190	}	249	}
191	else if (len <= 0xffff)	250	else if (len <= 0xffffU)
192	{	251	{
193	*enc->cur++ = major | 25;	252	*enc->cur++ = major | LENGTH_EXT2;
194	*enc->cur++ = len >> 8;	253	*enc->cur++ = len >> 8;
195	*enc->cur++ = len;	254	*enc->cur++ = len;
196	}	255	}
197	else if (len <= 0xffffffff)	256	else if (len <= 0xffffffffU)
198	{	257	{
199	*enc->cur++ = major | 26;	258	*enc->cur++ = major | LENGTH_EXT4;
200	*enc->cur++ = len >> 24;	259	*enc->cur++ = len >> 24;
201	*enc->cur++ = len >> 16;	260	*enc->cur++ = len >> 16;
202	*enc->cur++ = len >> 8;	261	*enc->cur++ = len >> 8;
203	*enc->cur++ = len;	262	*enc->cur++ = len;
204	}	263	}
205	else	264	else
206	{	265	{
207	*enc->cur++ = major | 27;	266	*enc->cur++ = major | LENGTH_EXT8;
208	*enc->cur++ = len >> 56;	267	*enc->cur++ = len >> 56;
209	*enc->cur++ = len >> 48;	268	*enc->cur++ = len >> 48;
210	*enc->cur++ = len >> 40;	269	*enc->cur++ = len >> 40;
211	*enc->cur++ = len >> 32;	270	*enc->cur++ = len >> 32;
212	*enc->cur++ = len >> 24;	271	*enc->cur++ = len >> 24;
…		…
217	}	276	}
218		277
219	ecb_inline void	278	ecb_inline void
220	encode_tag (enc_t *enc, UV tag)	279	encode_tag (enc_t *enc, UV tag)
221	{	280	{
222	encode_uint (enc, 0xc0, tag);	281	encode_uint (enc, MAJOR_TAG, tag);
223	}	282	}
224		283
225	static void	284	// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded
		285	ecb_noinline static void
226	encode_str (enc_t *enc, int utf8, char *str, STRLEN len)	286	encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len)
227	{	287	{
		288	STRLEN ulen = len;
		289	U8 *p, *pend = (U8 *)str + len;
		290
		291	for (p = (U8 *)str; p < pend; ++p)
		292	ulen += *p >> 7; // count set high bits
		293
		294	encode_uint (enc, MAJOR_TEXT, ulen);
		295
		296	need (enc, ulen);
		297	for (p = (U8 *)str; p < pend; ++p)
		298	if (*p < 0x80)
		299	*enc->cur++ = *p;
		300	else
		301	{
		302	*enc->cur++ = 0xc0 + (*p >> 6);
		303	*enc->cur++ = 0x80 + (*p & 63);
		304	}
		305	}
		306
		307	ecb_inline void
		308	encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
		309	{
		310	if (ecb_expect_false (upgrade_utf8))
		311	if (!utf8)
		312	{
		313	encode_str_utf8 (enc, utf8, str, len);
		314	return;
		315	}
		316
		317	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
		318	need (enc, len);
		319	memcpy (enc->cur, str, len);
		320	enc->cur += len;
		321	}
		322
		323	ecb_inline void
		324	encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len)
		325	{
228	if (ecb_expect_false (enc->cbor.flags & F_DEDUP_STRINGS))	326	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
229	{	327	{
230	SV **svp = hv_fetch (enc->stringref[utf8], str, len, 1);	328	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
231		329
232	if (SvOK (*svp))	330	if (SvOK (*svp))
233	{	331	{
234	// already registered, use stringref	332	// already registered, use stringref
235	encode_tag (enc, CBOR_TAG_STRINGREF);	333	encode_tag (enc, CBOR_TAG_STRINGREF);
236	encode_uint (enc, 0x00, SvUV (*svp));	334	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
237	return;	335	return;
238	}	336	}
239	else if (len >= minimum_string_length (enc->stringref_idx))	337	else if (len >= minimum_string_length (enc->stringref_idx))
240	{	338	{
241	// register only	339	// register only
242	sv_setuv (*svp, enc->stringref_idx);	340	sv_setuv (*svp, enc->stringref_idx);
243	++enc->stringref_idx;	341	++enc->stringref_idx;
244	}	342	}
245	}	343	}
246		344
247	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	345	encode_str (enc, upgrade_utf8, utf8, str, len);
248	need (enc, len);
249	memcpy (enc->cur, str, len);
250	enc->cur += len;
251	}	346	}
252		347
253	static void encode_sv (enc_t *enc, SV *sv);	348	static void encode_sv (enc_t *enc, SV *sv);
254		349
255	static void	350	static void
…		…
260	if (enc->depth >= enc->cbor.max_depth)	355	if (enc->depth >= enc->cbor.max_depth)
261	croak (ERR_NESTING_EXCEEDED);	356	croak (ERR_NESTING_EXCEEDED);
262		357
263	++enc->depth;	358	++enc->depth;
264		359
265	encode_uint (enc, 0x80, len + 1);	360	encode_uint (enc, MAJOR_ARRAY, len + 1);
266		361
		362	if (ecb_expect_false (SvMAGICAL (av)))
267	for (i = 0; i <= len; ++i)	363	for (i = 0; i <= len; ++i)
268	{	364	{
269	SV **svp = av_fetch (av, i, 0);	365	SV **svp = av_fetch (av, i, 0);
270	encode_sv (enc, svp ? *svp : &PL_sv_undef);	366	encode_sv (enc, svp ? *svp : &PL_sv_undef);
271	}	367	}
		368	else
		369	for (i = 0; i <= len; ++i)
		370	{
		371	SV *sv = AvARRAY (av)[i];
		372	encode_sv (enc, sv ? sv : &PL_sv_undef);
		373	}
272		374
273	--enc->depth;	375	--enc->depth;
274	}
275
276	ecb_inline void
277	encode_he (enc_t *enc, HE *he)
278	{
279	}	376	}
280		377
281	static void	378	static void
282	encode_hv (enc_t *enc, HV *hv)	379	encode_hv (enc_t *enc, HV *hv)
283	{	380	{
…		…
289	++enc->depth;	386	++enc->depth;
290		387
291	int pairs = hv_iterinit (hv);	388	int pairs = hv_iterinit (hv);
292	int mg = SvMAGICAL (hv);	389	int mg = SvMAGICAL (hv);
293		390
294	if (mg)	391	if (ecb_expect_false (mg))
295	encode_ch (enc, 0xa0 | 31);	392	encode_ch (enc, MAJOR_MAP | MINOR_INDEF);
296	else	393	else
297	encode_uint (enc, 0xa0, pairs);	394	encode_uint (enc, MAJOR_MAP, pairs);
298		395
299	while ((he = hv_iternext (hv)))	396	while ((he = hv_iternext (hv)))
300	{	397	{
301	if (HeKLEN (he) == HEf_SVKEY)	398	if (HeKLEN (he) == HEf_SVKEY)
302	encode_sv (enc, HeSVKEY (he));	399	encode_sv (enc, HeSVKEY (he));
303	else	400	else
304	encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));	401	encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he));
305		402
306	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));
307	}	404	}
308		405
309	if (mg)	406	if (ecb_expect_false (mg))
310	encode_ch (enc, 0xe0 | 31);	407	encode_ch (enc, MAJOR_MISC | MINOR_INDEF);
311		408
312	--enc->depth;	409	--enc->depth;
313	}	410	}
314		411
315	// encode objects, arrays and special \0=false and \1=true values.	412	// encode objects, arrays and special \0=false and \1=true values.
316	static void	413	static void
317	encode_rv (enc_t *enc, SV *sv)	414	encode_rv (enc_t *enc, SV *sv)
318	{	415	{
319	SvGETMAGIC (sv);	416	SvGETMAGIC (sv);
320
321	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)
322	&& ecb_expect_false (SvREFCNT (sv) > 1))
323	{
324	if (!enc->shareable)
325	enc->shareable = (HV *)sv_2mortal ((SV *)newHV ());
326
327	SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1);
328
329	if (SvOK (*svp))
330	{
331	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
332	encode_uint (enc, 0x00, SvUV (*svp));
333	return;
334	}
335	else
336	{
337	sv_setuv (*svp, enc->shareable_idx);
338	++enc->shareable_idx;
339	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
340	}
341	}
342		417
343	svtype svt = SvTYPE (sv);	418	svtype svt = SvTYPE (sv);
344		419
345	if (ecb_expect_false (SvOBJECT (sv)))	420	if (ecb_expect_false (SvOBJECT (sv)))
346	{	421	{
…		…
353	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	428	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
354	? cbor_tagged_stash	429	? cbor_tagged_stash
355	: gv_stashpv ("CBOR::XS::Tagged" , 1);	430	: gv_stashpv ("CBOR::XS::Tagged" , 1);
356		431
357	HV *stash = SvSTASH (sv);	432	HV *stash = SvSTASH (sv);
358	GV *method;
359		433
360	if (stash == boolean_stash)	434	if (stash == boolean_stash)
361	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	}
362	else if (stash == error_stash)	439	else if (stash == error_stash)
363	encode_ch (enc, 0xe0 | 23);	440	{
		441	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
		442	return;
		443	}
364	else if (stash == tagged_stash)	444	else if (stash == tagged_stash)
365	{	445	{
366	if (svt != SVt_PVAV)	446	if (svt != SVt_PVAV)
367	croak ("encountered CBOR::XS::Tagged object that isn't an array");	447	croak ("encountered CBOR::XS::Tagged object that isn't an array");
368		448
369	encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1)));	449	encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1)));
370	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))
371	}	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))));
372	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	486	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
373	{	487	{
374	dSP;	488	dSP;
375		489
376	ENTER; SAVETMPS; PUSHMARK (SP);	490	ENTER; SAVETMPS;
		491	PUSHMARK (SP);
377	// 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
378	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	493	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
379		494
380	PUTBACK;	495	PUTBACK;
381	// G_SCALAR ensures that return value is 1	496	// G_SCALAR ensures that return value is 1
…		…
394	}	509	}
395	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	510	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
396	{	511	{
397	dSP;	512	dSP;
398		513
399	ENTER; SAVETMPS; PUSHMARK (SP);	514	ENTER; SAVETMPS;
		515	PUSHMARK (SP);
400	EXTEND (SP, 2);	516	EXTEND (SP, 2);
401	// we re-bless the reference to get overload and other niceties right	517	// we re-bless the reference to get overload and other niceties right
402	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	518	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
403	PUSHs (sv_cbor);	519	PUSHs (sv_cbor);
404		520
…		…
409	// catch this surprisingly common error	525	// catch this surprisingly common error
410	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	526	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
411	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));	527	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
412		528
413	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	529	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
414	encode_uint (enc, 0x80, count + 1);	530	encode_uint (enc, MAJOR_ARRAY, count + 1);
415	encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	531	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
416		532
417	while (count)	533	{
		534	int i;
		535
		536	for (i = 0; i < count; ++i)
418	encode_sv (enc, SP[1 - count--]);	537	encode_sv (enc, SP[i + 1 - count]);
		538
		539	SP -= count;
		540	}
419		541
420	PUTBACK;	542	PUTBACK;
421		543
422	FREETMPS; LEAVE;	544	FREETMPS; LEAVE;
423	}	545	}
…		…
441	{	563	{
442	double nv = SvNVX (sv);	564	double nv = SvNVX (sv);
443		565
444	need (enc, 9);	566	need (enc, 9);
445		567
446	if (ecb_expect_false (nv == (U32)nv))	568	if (ecb_expect_false (nv == (NV)(U32)nv))
447	encode_uint (enc, 0x00, (U32)nv);	569	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
448	//TODO: maybe I32?	570	//TODO: maybe I32?
449	else if (ecb_expect_false (nv == (float)nv))	571	else if (ecb_expect_false (nv == (float)nv))
450	{	572	{
		573	*enc->cur++ = MAJOR_MISC | MISC_FLOAT32;
		574
451	uint32_t fp = ecb_float_to_binary32 (nv);	575	uint32_t fp = ecb_float_to_binary32 (nv);
452
453	*enc->cur++ = 0xe0 | 26;
454		576
455	if (!ecb_big_endian ())	577	if (!ecb_big_endian ())
456	fp = ecb_bswap32 (fp);	578	fp = ecb_bswap32 (fp);
457		579
458	memcpy (enc->cur, &fp, 4);	580	memcpy (enc->cur, &fp, 4);
459	enc->cur += 4;	581	enc->cur += 4;
460	}	582	}
461	else	583	else
462	{	584	{
		585	*enc->cur++ = MAJOR_MISC | MISC_FLOAT64;
		586
463	uint64_t fp = ecb_double_to_binary64 (nv);	587	uint64_t fp = ecb_double_to_binary64 (nv);
464
465	*enc->cur++ = 0xe0 | 27;
466		588
467	if (!ecb_big_endian ())	589	if (!ecb_big_endian ())
468	fp = ecb_bswap64 (fp);	590	fp = ecb_bswap64 (fp);
469		591
470	memcpy (enc->cur, &fp, 8);	592	memcpy (enc->cur, &fp, 8);
…		…
479		601
480	if (SvPOKp (sv))	602	if (SvPOKp (sv))
481	{	603	{
482	STRLEN len;	604	STRLEN len;
483	char *str = SvPV (sv, len);	605	char *str = SvPV (sv, len);
484	encode_str (enc, SvUTF8 (sv), str, len);	606	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
485	}	607	}
486	else if (SvNOKp (sv))	608	else if (SvNOKp (sv))
487	encode_nv (enc, sv);	609	encode_nv (enc, sv);
488	else if (SvIOKp (sv))	610	else if (SvIOKp (sv))
489	{	611	{
490	if (SvIsUV (sv))	612	if (SvIsUV (sv))
491	encode_uint (enc, 0x00, SvUVX (sv));	613	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
492	else if (SvIVX (sv) >= 0)	614	else if (SvIVX (sv) >= 0)
493	encode_uint (enc, 0x00, SvIVX (sv));	615	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
494	else	616	else
495	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	617	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
496	}	618	}
497	else if (SvROK (sv))	619	else if (SvROK (sv))
498	encode_rv (enc, SvRV (sv));	620	encode_rv (enc, SvRV (sv));
499	else if (!SvOK (sv))	621	else if (!SvOK (sv))
500	encode_ch (enc, 0xe0 | 22);	622	encode_ch (enc, MAJOR_MISC | SIMPLE_NULL);
501	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	623	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
502	encode_ch (enc, 0xe0 | 23);	624	encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF);
503	else	625	else
504	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	626	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
505	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	627	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
506	}	628	}
507		629
508	static SV *	630	static SV *
509	encode_cbor (SV *scalar, CBOR *cbor)	631	encode_cbor (SV *scalar, CBOR *cbor)
510	{	632	{
511	enc_t enc = { };	633	enc_t enc = { 0 };
512		634
513	enc.cbor = *cbor;	635	enc.cbor = *cbor;
514	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	636	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
515	enc.cur = SvPVX (enc.sv);	637	enc.cur = SvPVX (enc.sv);
516	enc.end = SvEND (enc.sv);	638	enc.end = SvEND (enc.sv);
517		639
518	SvPOK_only (enc.sv);	640	SvPOK_only (enc.sv);
519		641
520	if (cbor->flags & F_DEDUP_STRINGS)	642	if (cbor->flags & F_PACK_STRINGS)
521	{	643	{
522	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	644	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
523	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());	645	enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ());
524	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());	646	enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ());
525	}	647	}
…		…
547	CBOR cbor;	669	CBOR cbor;
548	U32 depth; // recursion depth	670	U32 depth; // recursion depth
549	U32 maxdepth; // recursion depth limit	671	U32 maxdepth; // recursion depth limit
550	AV *shareable;	672	AV *shareable;
551	AV *stringref;	673	AV *stringref;
		674	SV *decode_tagged;
		675	SV *err_sv; // optional sv for error, needs to be freed
552	} dec_t;	676	} dec_t;
553		677
554	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	678	// set dec->err to ERRSV
		679	ecb_cold static void
		680	err_errsv (dec_t *dec)
		681	{
		682	if (!dec->err)
		683	{
		684	dec->err_sv = newSVsv (ERRSV);
555		685
556	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	686	// chop off the trailing \n
		687	SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1);
		688	*SvEND (dec->err_sv) = 0;
557		689
		690	dec->err = SvPVutf8_nolen (dec->err_sv);
		691	}
		692	}
		693
		694	// the following functions are used to reduce code size and help the compiler to optimise
		695	ecb_cold static void
		696	err_set (dec_t *dec, const char *reason)
		697	{
		698	if (!dec->err)
		699	dec->err = reason;
		700	}
		701
		702	ecb_cold static void
		703	err_unexpected_end (dec_t *dec)
		704	{
		705	err_set (dec, "unexpected end of CBOR data");
		706	}
		707
		708	#define ERR_DO(do) SB do; goto fail; SE
		709	#define ERR(reason) ERR_DO (err_set (dec, reason))
		710	#define ERR_ERRSV ERR_DO (err_errsv (dec))
		711
		712	#define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec))
		713
558	#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED)	714	#define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED)
559	#define DEC_DEC_DEPTH --dec->depth	715	#define DEC_DEC_DEPTH --dec->depth
560		716
561	static UV	717	static UV
562	decode_uint (dec_t *dec)	718	decode_uint (dec_t *dec)
563	{	719	{
564	switch (*dec->cur & 31)	720	U8 m = *dec->cur & MINOR_MASK;
565	{	721	++dec->cur;
566	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
567	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
568	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
569	return *dec->cur++ & 31;
570		722
571	case 24:	723	if (ecb_expect_true (m < LENGTH_EXT1))
		724	return m;
		725	else if (ecb_expect_true (m == LENGTH_EXT1))
		726	{
572	WANT (2);	727	WANT (1);
573	dec->cur += 2;	728	dec->cur += 1;
574	return dec->cur[-1];	729	return dec->cur[-1];
575		730	}
576	case 25:	731	else if (ecb_expect_true (m == LENGTH_EXT2))
		732	{
577	WANT (3);	733	WANT (2);
578	dec->cur += 3;	734	dec->cur += 2;
579	return (((UV)dec->cur[-2]) << 8)	735	return (((UV)dec->cur[-2]) << 8)
580	| ((UV)dec->cur[-1]);	736	| ((UV)dec->cur[-1]);
581		737	}
582	case 26:	738	else if (ecb_expect_true (m == LENGTH_EXT4))
		739	{
583	WANT (5);	740	WANT (4);
584	dec->cur += 5;	741	dec->cur += 4;
585	return (((UV)dec->cur[-4]) << 24)	742	return (((UV)dec->cur[-4]) << 24)
586	| (((UV)dec->cur[-3]) << 16)	743	| (((UV)dec->cur[-3]) << 16)
587	| (((UV)dec->cur[-2]) << 8)	744	| (((UV)dec->cur[-2]) << 8)
588	| ((UV)dec->cur[-1]);	745	| ((UV)dec->cur[-1]);
589		746	}
590	case 27:	747	else if (ecb_expect_true (m == LENGTH_EXT8))
		748	{
591	WANT (9);	749	WANT (8);
592	dec->cur += 9;	750	dec->cur += 8;
		751
		752	return
		753	#if UVSIZE < 8
		754	0
		755	#else
593	return (((UV)dec->cur[-8]) << 56)	756	(((UV)dec->cur[-8]) << 56)
594	| (((UV)dec->cur[-7]) << 48)	757	| (((UV)dec->cur[-7]) << 48)
595	| (((UV)dec->cur[-6]) << 40)	758	| (((UV)dec->cur[-6]) << 40)
596	| (((UV)dec->cur[-5]) << 32)	759	| (((UV)dec->cur[-5]) << 32)
		760	#endif
597	| (((UV)dec->cur[-4]) << 24)	761	| (((UV)dec->cur[-4]) << 24)
598	| (((UV)dec->cur[-3]) << 16)	762	| (((UV)dec->cur[-3]) << 16)
599	| (((UV)dec->cur[-2]) << 8)	763	| (((UV)dec->cur[-2]) << 8)
600	| ((UV)dec->cur[-1]);	764	| ((UV)dec->cur[-1]);
601		765	}
602	default:	766	else
603	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	767	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
604	}
605		768
606	fail:	769	fail:
607	return 0;	770	return 0;
608	}	771	}
609		772
…		…
614	{	777	{
615	AV *av = newAV ();	778	AV *av = newAV ();
616		779
617	DEC_INC_DEPTH;	780	DEC_INC_DEPTH;
618		781
619	if ((*dec->cur & 31) == 31)	782	if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF))
620	{	783	{
621	++dec->cur;	784	++dec->cur;
622		785
623	for (;;)	786	for (;;)
624	{	787	{
625	WANT (1);	788	WANT (1);
626		789
627	if (*dec->cur == (0xe0 | 31))	790	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
628	{	791	{
629	++dec->cur;	792	++dec->cur;
630	break;	793	break;
631	}	794	}
632		795
633	av_push (av, decode_sv (dec));	796	av_push (av, decode_sv (dec));
634	}	797	}
635	}	798	}
636	else	799	else
637	{	800	{
638	int i, len = decode_uint (dec);	801	UV i, len = decode_uint (dec);
639		802
		803	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
640	av_fill (av, len - 1);	804	av_fill (av, len - 1);
641		805
642	for (i = 0; i < len; ++i)	806	for (i = 0; i < len; ++i)
643	AvARRAY (av)[i] = decode_sv (dec);	807	AvARRAY (av)[i] = decode_sv (dec);
644	}	808	}
645		809
646	DEC_DEC_DEPTH;	810	DEC_DEC_DEPTH;
647	return newRV_noinc ((SV *)av);	811	return newRV_noinc ((SV *)av);
648		812
649	fail:	813	fail:
650	SvREFCNT_dec (av);	814	SvREFCNT_dec_NN (av);
651	DEC_DEC_DEPTH;	815	DEC_DEC_DEPTH;
652	return &PL_sv_undef;	816	return &PL_sv_undef;
653	}	817	}
654		818
655	static void	819	static void
656	decode_he (dec_t *dec, HV *hv)	820	decode_he (dec_t *dec, HV *hv)
657	{	821	{
658	// for speed reasons, we specialcase single-string	822	// for speed reasons, we specialcase single-string
659	// byte or utf-8 strings as keys, but only when !stringref	823	// byte or utf-8 strings as keys, but only when !stringref
660		824
661	if (expect_true (!dec->stringref))	825	if (ecb_expect_true (!dec->stringref))
662	if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27)	826	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
663	{	827	{
664	I32 len = decode_uint (dec);	828	STRLEN len = decode_uint (dec);
665	char *key = (char *)dec->cur;	829	char *key = (char *)dec->cur;
666		830
		831	WANT (len);
667	dec->cur += len;	832	dec->cur += len;
668		833
669	if (ecb_expect_false (dec->stringref))
670	av_push (dec->stringref, newSVpvn (key, len));
671
672	hv_store (hv, key, len, decode_sv (dec), 0);	834	hv_store (hv, key, len, decode_sv (dec), 0);
673		835
674	return;	836	return;
675	}	837	}
676	else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27)	838	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
677	{	839	{
678	I32 len = decode_uint (dec);	840	STRLEN len = decode_uint (dec);
679	char *key = (char *)dec->cur;	841	char *key = (char *)dec->cur;
680		842
		843	WANT (len);
681	dec->cur += len;	844	dec->cur += len;
682		845
683	if (ecb_expect_false (dec->stringref))	846	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
684	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	847	if (!is_utf8_string (key, len))
		848	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
685		849
686	hv_store (hv, key, -len, decode_sv (dec), 0);	850	hv_store (hv, key, -len, decode_sv (dec), 0);
687		851
688	return;	852	return;
689	}	853	}
690		854
691	SV *k = decode_sv (dec);	855	SV *k = decode_sv (dec);
692	SV *v = decode_sv (dec);	856	SV *v = decode_sv (dec);
693		857
		858	// we leak memory if uncaught exceptions are thrown by random magical
		859	// methods, and this is hopefully the only place where it can happen,
		860	// so if there is a chance of an exception, take the very slow path.
		861	// since catching exceptions is "undocumented/internal/forbidden" by
		862	// the new p5p powers, we need to call out to a perl function :/
		863	if (ecb_expect_false (SvAMAGIC (k)))
		864	{
		865	dSP;
		866
		867	ENTER; SAVETMPS;
		868	PUSHMARK (SP);
		869	EXTEND (SP, 3);
		870	PUSHs (sv_2mortal (newRV_inc ((SV *)hv)));
		871	PUSHs (sv_2mortal (k));
		872	PUSHs (sv_2mortal (v));
		873
		874	PUTBACK;
		875	call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL);
		876	SPAGAIN;
		877
		878	FREETMPS; LEAVE;
		879
		880	if (SvTRUE (ERRSV))
		881	ERR_ERRSV;
		882
		883	return;
		884	}
		885
694	hv_store_ent (hv, k, v, 0);	886	hv_store_ent (hv, k, v, 0);
695	SvREFCNT_dec (k);	887	SvREFCNT_dec_NN (k);
		888
		889	fail:
		890	;
696	}	891	}
697		892
698	static SV *	893	static SV *
699	decode_hv (dec_t *dec)	894	decode_hv (dec_t *dec)
700	{	895	{
701	HV *hv = newHV ();	896	HV *hv = newHV ();
702		897
703	DEC_INC_DEPTH;	898	DEC_INC_DEPTH;
704		899
705	if ((*dec->cur & 31) == 31)	900	if (*dec->cur == (MAJOR_MAP | MINOR_INDEF))
706	{	901	{
707	++dec->cur;	902	++dec->cur;
708		903
709	for (;;)	904	for (;;)
710	{	905	{
711	WANT (1);	906	WANT (1);
712		907
713	if (*dec->cur == (0xe0 | 31))	908	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err)
714	{	909	{
715	++dec->cur;	910	++dec->cur;
716	break;	911	break;
717	}	912	}
718		913
719	decode_he (dec, hv);	914	decode_he (dec, hv);
720	}	915	}
721	}	916	}
722	else	917	else
723	{	918	{
724	int pairs = decode_uint (dec);	919	UV pairs = decode_uint (dec);
		920
		921	WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes
725		922
726	while (pairs--)	923	while (pairs--)
727	decode_he (dec, hv);	924	decode_he (dec, hv);
728	}	925	}
729		926
730	DEC_DEC_DEPTH;	927	DEC_DEC_DEPTH;
731	return newRV_noinc ((SV *)hv);	928	return newRV_noinc ((SV *)hv);
732		929
733	fail:	930	fail:
734	SvREFCNT_dec (hv);	931	SvREFCNT_dec_NN (hv);
735	DEC_DEC_DEPTH;	932	DEC_DEC_DEPTH;
736	return &PL_sv_undef;	933	return &PL_sv_undef;
737	}	934	}
738		935
739	static SV *	936	static SV *
740	decode_str (dec_t *dec, int utf8)	937	decode_str (dec_t *dec, int utf8)
741	{	938	{
742	SV *sv = 0;	939	SV *sv = 0;
743		940
744	if ((*dec->cur & 31) == 31)	941	if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF))
745	{	942	{
		943	// indefinite length strings
746	++dec->cur;	944	++dec->cur;
747		945
		946	U8 major = *dec->cur & MAJOR_MISC;
		947
748	sv = newSVpvn ("", 0);	948	sv = newSVpvn ("", 0);
749		949
750	// not very fast, and certainly not robust against illegal input
751	for (;;)	950	for (;;)
752	{	951	{
753	WANT (1);	952	WANT (1);
754		953
755	if (*dec->cur == (0xe0 | 31))	954	if ((*dec->cur - major) > LENGTH_EXT8)
		955	if (*dec->cur == (MAJOR_MISC | MINOR_INDEF))
756	{	956	{
757	++dec->cur;	957	++dec->cur;
758	break;	958	break;
759	}	959	}
		960	else
		961	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
760		962
761	sv_catsv (sv, decode_sv (dec));	963	STRLEN len = decode_uint (dec);
		964
		965	WANT (len);
		966	sv_catpvn (sv, dec->cur, len);
		967	dec->cur += len;
762	}	968	}
763	}	969	}
764	else	970	else
765	{	971	{
766	STRLEN len = decode_uint (dec);	972	STRLEN len = decode_uint (dec);
767		973
768	WANT (len);	974	WANT (len);
769	sv = newSVpvn (dec->cur, len);	975	sv = newSVpvn (dec->cur, len);
770	dec->cur += len;	976	dec->cur += len;
		977
		978	if (ecb_expect_false (dec->stringref)
		979	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
		980	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
771	}	981	}
772		982
773	if (utf8)	983	if (utf8)
		984	{
		985	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		986	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		987	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		988
774	SvUTF8_on (sv);	989	SvUTF8_on (sv);
775		990	}
776	if (ecb_expect_false (dec->stringref)
777	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
778	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
779		991
780	return sv;	992	return sv;
781		993
782	fail:	994	fail:
783	SvREFCNT_dec (sv);	995	SvREFCNT_dec (sv);
…		…
802	sv = newRV_noinc (decode_sv (dec));	1014	sv = newRV_noinc (decode_sv (dec));
803	break;	1015	break;
804		1016
805	case CBOR_TAG_STRINGREF_NAMESPACE:	1017	case CBOR_TAG_STRINGREF_NAMESPACE:
806	{	1018	{
		1019	// do not use SAVETMPS/FREETMPS, as these will
		1020	// erase mortalised caches, e.g. "shareable"
807	ENTER; SAVETMPS;	1021	ENTER;
808		1022
809	SAVESPTR (dec->stringref);	1023	SAVESPTR (dec->stringref);
810	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());	1024	dec->stringref = (AV *)sv_2mortal ((SV *)newAV ());
811		1025
812	sv = decode_sv (dec);	1026	sv = decode_sv (dec);
813		1027
814	FREETMPS; LEAVE;	1028	LEAVE;
815	}	1029	}
816	break;	1030	break;
817		1031
818	case CBOR_TAG_STRINGREF:	1032	case CBOR_TAG_STRINGREF:
819	{	1033	{
820	if ((*dec->cur >> 5) != 0)	1034	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
821	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	1035	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
822		1036
823	UV idx = decode_uint (dec);	1037	UV idx = decode_uint (dec);
824		1038
825	if (!dec->stringref || (int)idx > AvFILLp (dec->stringref))	1039	if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref)))
826	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");	1040	ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)");
827		1041
828	sv = newSVsv (AvARRAY (dec->stringref)[idx]);	1042	sv = newSVsv (AvARRAY (dec->stringref)[idx]);
829	}	1043	}
830	break;	1044	break;
…		…
832	case CBOR_TAG_VALUE_SHAREABLE:	1046	case CBOR_TAG_VALUE_SHAREABLE:
833	{	1047	{
834	if (ecb_expect_false (!dec->shareable))	1048	if (ecb_expect_false (!dec->shareable))
835	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());	1049	dec->shareable = (AV *)sv_2mortal ((SV *)newAV ());
836		1050
		1051	if (dec->cbor.flags & F_ALLOW_CYCLES)
		1052	{
837	sv = newSV (0);	1053	sv = newSV (0);
838	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	1054	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
839		1055
840	SV *osv = decode_sv (dec);	1056	SV *osv = decode_sv (dec);
841	sv_setsv (sv, osv);	1057	sv_setsv (sv, osv);
842	SvREFCNT_dec_NN (osv);	1058	SvREFCNT_dec_NN (osv);
		1059	}
		1060	else
		1061	{
		1062	av_push (dec->shareable, &PL_sv_undef);
		1063	int idx = AvFILLp (dec->shareable);
		1064	sv = decode_sv (dec);
		1065	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		1066	}
843	}	1067	}
844	break;	1068	break;
845		1069
846	case CBOR_TAG_VALUE_SHAREDREF:	1070	case CBOR_TAG_VALUE_SHAREDREF:
847	{	1071	{
848	if ((*dec->cur >> 5) != 0)	1072	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
849	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	1073	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
850		1074
851	UV idx = decode_uint (dec);	1075	UV idx = decode_uint (dec);
852		1076
853	if (!dec->shareable || (int)idx > AvFILLp (dec->shareable))	1077	if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable)))
854	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1078	ERR ("corrupted CBOR data (sharedref index out of bounds)");
855		1079
856	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	1080	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1081
		1082	if (sv == &PL_sv_undef)
		1083	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
857	}	1084	}
858	break;	1085	break;
859		1086
860	case CBOR_TAG_PERL_OBJECT:	1087	case CBOR_TAG_PERL_OBJECT:
861	{	1088	{
		1089	if (dec->cbor.flags & F_FORBID_OBJECTS)
		1090	goto filter;
		1091
862	sv = decode_sv (dec);	1092	sv = decode_sv (dec);
863		1093
864	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)	1094	if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV)
865	ERR ("corrupted CBOR data (non-array perl object)");	1095	ERR ("corrupted CBOR data (non-array perl object)");
866		1096
…		…
876	if (!method)	1106	if (!method)
877	ERR ("cannot decode perl-object (package does not have a THAW method)");	1107	ERR ("cannot decode perl-object (package does not have a THAW method)");
878		1108
879	dSP;	1109	dSP;
880		1110
881	ENTER; SAVETMPS; PUSHMARK (SP);	1111	ENTER; SAVETMPS;
		1112	PUSHMARK (SP);
882	EXTEND (SP, len + 1);	1113	EXTEND (SP, len + 1);
883	// we re-bless the reference to get overload and other niceties right	1114	// we re-bless the reference to get overload and other niceties right
884	PUSHs (*av_fetch (av, 0, 1));	1115	PUSHs (*av_fetch (av, 0, 1));
885	PUSHs (sv_cbor);	1116	PUSHs (sv_cbor);
886		1117
…		…
894	SPAGAIN;	1125	SPAGAIN;
895		1126
896	if (SvTRUE (ERRSV))	1127	if (SvTRUE (ERRSV))
897	{	1128	{
898	FREETMPS; LEAVE;	1129	FREETMPS; LEAVE;
899	ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV))));	1130	ERR_ERRSV;
900	}	1131	}
901		1132
902	SvREFCNT_dec (sv);	1133	SvREFCNT_dec_NN (sv);
903	sv = SvREFCNT_inc (POPs);	1134	sv = SvREFCNT_inc (POPs);
904		1135
905	PUTBACK;	1136	PUTBACK;
906		1137
907	FREETMPS; LEAVE;	1138	FREETMPS; LEAVE;
908	}	1139	}
909	break;	1140	break;
910		1141
911	default:	1142	default:
		1143	filter:
912	{	1144	{
		1145	SV *tag_sv = newSVuv (tag);
		1146
913	sv = decode_sv (dec);	1147	sv = decode_sv (dec);
914		1148
		1149	dSP;
		1150	ENTER; SAVETMPS;
		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_NN (tag_sv);
		1163	FREETMPS; LEAVE;
		1164	ERR_ERRSV;
		1165	}
		1166
		1167	if (count)
		1168	{
		1169	SvREFCNT_dec_NN (tag_sv);
		1170	SvREFCNT_dec_NN (sv);
		1171	sv = SvREFCNT_inc_NN (TOPs);
		1172	SP -= count;
		1173	}
		1174	else
		1175	{
915	AV *av = newAV ();	1176	AV *av = newAV ();
916	av_push (av, newSVuv (tag));	1177	av_push (av, tag_sv);
917	av_push (av, sv);	1178	av_push (av, sv);
918		1179
919	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash	1180	HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash
920	? cbor_tagged_stash	1181	? cbor_tagged_stash
921	: gv_stashpv ("CBOR::XS::Tagged" , 1);	1182	: gv_stashpv ("CBOR::XS::Tagged" , 1);
922
923	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);	1183	sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash);
		1184	}
		1185
		1186	PUTBACK;
		1187
		1188	FREETMPS; LEAVE;
924	}	1189	}
925	break;	1190	break;
926	}	1191	}
927		1192
928	return sv;	1193	return sv;
…		…
935	static SV *	1200	static SV *
936	decode_sv (dec_t *dec)	1201	decode_sv (dec_t *dec)
937	{	1202	{
938	WANT (1);	1203	WANT (1);
939		1204
940	switch (*dec->cur >> 5)	1205	switch (*dec->cur >> MAJOR_SHIFT)
941	{	1206	{
942	case 0: // unsigned int	1207	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
943	return newSVuv (decode_uint (dec));	1208	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
944	case 1: // negative int	1209	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
945	return newSViv (-1 - (IV)decode_uint (dec));	1210	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
946	case 2: // octet string	1211	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
947	return decode_str (dec, 0);	1212	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
948	case 3: // utf-8 string	1213	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
949	return decode_str (dec, 1);	1214
950	case 4: // array	1215	case MAJOR_MISC >> MAJOR_SHIFT:
951	return decode_av (dec);
952	case 5: // map
953	return decode_hv (dec);
954	case 6: // tag
955	return decode_tagged (dec);
956	case 7: // misc
957	switch (*dec->cur++ & 31)	1216	switch (*dec->cur++ & MINOR_MASK)
958	{	1217	{
959	case 20:	1218	case SIMPLE_FALSE:
960	#if CBOR_SLOW	1219	#if CBOR_SLOW
961	types_false = get_bool ("Types::Serialiser::false");	1220	types_false = get_bool ("Types::Serialiser::false");
962	#endif	1221	#endif
963	return newSVsv (types_false);	1222	return newSVsv (types_false);
964	case 21:	1223	case SIMPLE_TRUE:
965	#if CBOR_SLOW	1224	#if CBOR_SLOW
966	types_true = get_bool ("Types::Serialiser::true");	1225	types_true = get_bool ("Types::Serialiser::true");
967	#endif	1226	#endif
968	return newSVsv (types_true);	1227	return newSVsv (types_true);
969	case 22:	1228	case SIMPLE_NULL:
970	return newSVsv (&PL_sv_undef);	1229	return newSVsv (&PL_sv_undef);
971	case 23:	1230	case SIMPLE_UNDEF:
972	#if CBOR_SLOW	1231	#if CBOR_SLOW
973	types_error = get_bool ("Types::Serialiser::error");	1232	types_error = get_bool ("Types::Serialiser::error");
974	#endif	1233	#endif
975	return newSVsv (types_error);	1234	return newSVsv (types_error);
976		1235
977	case 25:	1236	case MISC_FLOAT16:
978	{	1237	{
979	WANT (2);	1238	WANT (2);
980		1239
981	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];	1240	uint16_t fp = (dec->cur[0] << 8) | dec->cur[1];
982	dec->cur += 2;	1241	dec->cur += 2;
983		1242
984	return newSVnv (ecb_binary16_to_float (fp));	1243	return newSVnv (ecb_binary16_to_float (fp));
985	}	1244	}
986		1245
987	case 26:	1246	case MISC_FLOAT32:
988	{	1247	{
989	uint32_t fp;	1248	uint32_t fp;
990	WANT (4);	1249	WANT (4);
991	memcpy (&fp, dec->cur, 4);	1250	memcpy (&fp, dec->cur, 4);
992	dec->cur += 4;	1251	dec->cur += 4;
…		…
995	fp = ecb_bswap32 (fp);	1254	fp = ecb_bswap32 (fp);
996		1255
997	return newSVnv (ecb_binary32_to_float (fp));	1256	return newSVnv (ecb_binary32_to_float (fp));
998	}	1257	}
999		1258
1000	case 27:	1259	case MISC_FLOAT64:
1001	{	1260	{
1002	uint64_t fp;	1261	uint64_t fp;
1003	WANT (8);	1262	WANT (8);
1004	memcpy (&fp, dec->cur, 8);	1263	memcpy (&fp, dec->cur, 8);
1005	dec->cur += 8;	1264	dec->cur += 8;
…		…
1008	fp = ecb_bswap64 (fp);	1267	fp = ecb_bswap64 (fp);
1009		1268
1010	return newSVnv (ecb_binary64_to_double (fp));	1269	return newSVnv (ecb_binary64_to_double (fp));
1011	}	1270	}
1012		1271
1013	// 0..19 unassigned	1272	// 0..19 unassigned simple
1014	// 24 reserved + unassigned (reserved values are not encodable)	1273	// 24 reserved + unassigned simple (reserved values are not encodable)
		1274	// 28-30 unassigned misc
		1275	// 31 break code
1015	default:	1276	default:
1016	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1277	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1017	}	1278	}
1018		1279
1019	break;	1280	break;
1020	}	1281	}
1021		1282
…		…
1024	}	1285	}
1025		1286
1026	static SV *	1287	static SV *
1027	decode_cbor (SV *string, CBOR *cbor, char **offset_return)	1288	decode_cbor (SV *string, CBOR *cbor, char **offset_return)
1028	{	1289	{
1029	dec_t dec = { };	1290	dec_t dec = { 0 };
1030	SV *sv;	1291	SV *sv;
1031	STRLEN len;	1292	STRLEN len;
1032	char *data = SvPVbyte (string, len);	1293	char *data = SvPVbyte (string, len);
1033		1294
1034	if (len > cbor->max_size && cbor->max_size)	1295	if (len > cbor->max_size && cbor->max_size)
…		…
1048	if (dec.cur != dec.end && !dec.err)	1309	if (dec.cur != dec.end && !dec.err)
1049	dec.err = "garbage after CBOR object";	1310	dec.err = "garbage after CBOR object";
1050		1311
1051	if (dec.err)	1312	if (dec.err)
1052	{	1313	{
		1314	if (dec.shareable)
		1315	{
		1316	// need to break cyclic links, which would all be in shareable
		1317	int i;
		1318	SV **svp;
		1319
		1320	for (i = av_len (dec.shareable) + 1; i--; )
		1321	if ((svp = av_fetch (dec.shareable, i, 0)))
		1322	sv_setsv (*svp, &PL_sv_undef);
		1323	}
		1324
1053	SvREFCNT_dec (sv);	1325	SvREFCNT_dec_NN (sv);
		1326
		1327	if (dec.err_sv)
		1328	sv_2mortal (dec.err_sv);
		1329
1054	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);	1330	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur);
1055	}	1331	}
1056		1332
1057	sv = sv_2mortal (sv);	1333	sv = sv_2mortal (sv);
1058		1334
1059	return sv;	1335	return sv;
1060	}	1336	}
1061		1337
		1338	/////////////////////////////////////////////////////////////////////////////
		1339	// incremental parser
		1340
		1341	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1342
		1343	// returns 0 for notyet, 1 for success or error
		1344	static int
		1345	incr_parse (CBOR *self, SV *cborstr)
		1346	{
		1347	STRLEN cur;
		1348	SvPV (cborstr, cur);
		1349
		1350	while (ecb_expect_true (self->incr_need <= cur))
		1351	{
		1352	// table of integer count bytes
		1353	static I8 incr_len[MINOR_MASK + 1] = {
		1354	0, 0, 0, 0, 0, 0, 0, 0,
		1355	0, 0, 0, 0, 0, 0, 0, 0,
		1356	0, 0, 0, 0, 0, 0, 0, 0,
		1357	1, 2, 4, 8,-1,-1,-1,-2
		1358	};
		1359
		1360	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1361	U8 m = *p & MINOR_MASK;
		1362	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1363	I8 ilen = incr_len[m];
		1364
		1365	self->incr_need = self->incr_pos + 1;
		1366
		1367	if (ecb_expect_false (ilen < 0))
		1368	{
		1369	if (m != MINOR_INDEF)
		1370	return 1; // error
		1371
		1372	if (*p == (MAJOR_MISC | MINOR_INDEF))
		1373	{
		1374	if (count >= 0)
		1375	return 1; // error
		1376
		1377	count = 1;
		1378	}
		1379	else
		1380	{
		1381	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1382	count = -1;
		1383	}
		1384	}
		1385	else
		1386	{
		1387	self->incr_need += ilen;
		1388	if (ecb_expect_false (self->incr_need > cur))
		1389	return 0;
		1390
		1391	int major = *p >> MAJOR_SHIFT;
		1392
		1393	switch (major)
		1394	{
		1395	case MAJOR_TAG >> MAJOR_SHIFT:
		1396	++count; // tags merely prefix another value
		1397	break;
		1398
		1399	case MAJOR_BYTES >> MAJOR_SHIFT:
		1400	case MAJOR_TEXT >> MAJOR_SHIFT:
		1401	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1402	case MAJOR_MAP >> MAJOR_SHIFT:
		1403	{
		1404	UV len;
		1405
		1406	if (ecb_expect_false (ilen))
		1407	{
		1408	len = 0;
		1409
		1410	do {
		1411	len = (len << 8) | *++p;
		1412	} while (--ilen);
		1413	}
		1414	else
		1415	len = m;
		1416
		1417	switch (major)
		1418	{
		1419	case MAJOR_BYTES >> MAJOR_SHIFT:
		1420	case MAJOR_TEXT >> MAJOR_SHIFT:
		1421	self->incr_need += len;
		1422	if (ecb_expect_false (self->incr_need > cur))
		1423	return 0;
		1424
		1425	break;
		1426
		1427	case MAJOR_MAP >> MAJOR_SHIFT:
		1428	len <<= 1;
		1429	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1430	if (len)
		1431	{
		1432	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1433	count = len + 1;
		1434	}
		1435	break;
		1436	}
		1437	}
		1438	}
		1439	}
		1440
		1441	self->incr_pos = self->incr_need;
		1442
		1443	if (count > 0)
		1444	{
		1445	while (!--count)
		1446	{
		1447	if (!AvFILLp (self->incr_count))
		1448	return 1; // done
		1449
		1450	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1451	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1452	}
		1453
		1454	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1455	}
		1456	}
		1457
		1458	return 0;
		1459	}
		1460
		1461
1062	/////////////////////////////////////////////////////////////////////////////	1462	/////////////////////////////////////////////////////////////////////////////
1063	// XS interface functions	1463	// XS interface functions
1064		1464
1065	MODULE = CBOR::XS PACKAGE = CBOR::XS	1465	MODULE = CBOR::XS PACKAGE = CBOR::XS
1066		1466
…		…
1074		1474
1075	types_true = get_bool ("Types::Serialiser::true" );	1475	types_true = get_bool ("Types::Serialiser::true" );
1076	types_false = get_bool ("Types::Serialiser::false");	1476	types_false = get_bool ("Types::Serialiser::false");
1077	types_error = get_bool ("Types::Serialiser::error");	1477	types_error = get_bool ("Types::Serialiser::error");
1078		1478
		1479	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
		1480
1079	sv_cbor = newSVpv ("CBOR", 0);	1481	sv_cbor = newSVpv ("CBOR", 0);
1080	SvREADONLY_on (sv_cbor);	1482	SvREADONLY_on (sv_cbor);
		1483
		1484	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1081	}	1485	}
1082		1486
1083	PROTOTYPES: DISABLE	1487	PROTOTYPES: DISABLE
1084		1488
1085	void CLONE (...)	1489	void CLONE (...)
…		…
1104	void shrink (CBOR *self, int enable = 1)	1508	void shrink (CBOR *self, int enable = 1)
1105	ALIAS:	1509	ALIAS:
1106	shrink = F_SHRINK	1510	shrink = F_SHRINK
1107	allow_unknown = F_ALLOW_UNKNOWN	1511	allow_unknown = F_ALLOW_UNKNOWN
1108	allow_sharing = F_ALLOW_SHARING	1512	allow_sharing = F_ALLOW_SHARING
		1513	allow_cycles = F_ALLOW_CYCLES
		1514	forbid_objects = F_FORBID_OBJECTS
1109	dedup_strings = F_DEDUP_STRINGS	1515	pack_strings = F_PACK_STRINGS
		1516	text_keys = F_TEXT_KEYS
		1517	text_strings = F_TEXT_STRINGS
		1518	validate_utf8 = F_VALIDATE_UTF8
1110	PPCODE:	1519	PPCODE:
1111	{	1520	{
1112	if (enable)	1521	if (enable)
1113	self->flags |= ix;	1522	self->flags |= ix;
1114	else	1523	else
…		…
1120	void get_shrink (CBOR *self)	1529	void get_shrink (CBOR *self)
1121	ALIAS:	1530	ALIAS:
1122	get_shrink = F_SHRINK	1531	get_shrink = F_SHRINK
1123	get_allow_unknown = F_ALLOW_UNKNOWN	1532	get_allow_unknown = F_ALLOW_UNKNOWN
1124	get_allow_sharing = F_ALLOW_SHARING	1533	get_allow_sharing = F_ALLOW_SHARING
		1534	get_allow_cycles = F_ALLOW_CYCLES
		1535	get_forbid_objects = F_FORBID_OBJECTS
1125	get_dedup_strings = F_DEDUP_STRINGS	1536	get_pack_strings = F_PACK_STRINGS
		1537	get_text_keys = F_TEXT_KEYS
		1538	get_text_strings = F_TEXT_STRINGS
		1539	get_validate_utf8 = F_VALIDATE_UTF8
1126	PPCODE:	1540	PPCODE:
1127	XPUSHs (boolSV (self->flags & ix));	1541	XPUSHs (boolSV (self->flags & ix));
1128		1542
1129	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1543	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1130	PPCODE:	1544	PPCODE:
…		…
1143	XPUSHs (ST (0));	1557	XPUSHs (ST (0));
1144		1558
1145	int get_max_size (CBOR *self)	1559	int get_max_size (CBOR *self)
1146	CODE:	1560	CODE:
1147	RETVAL = self->max_size;	1561	RETVAL = self->max_size;
		1562	OUTPUT:
		1563	RETVAL
		1564
		1565	void filter (CBOR *self, SV *filter = 0)
		1566	PPCODE:
		1567	SvREFCNT_dec (self->filter);
		1568	self->filter = filter ? newSVsv (filter) : filter;
		1569	XPUSHs (ST (0));
		1570
		1571	SV *get_filter (CBOR *self)
		1572	CODE:
		1573	RETVAL = self->filter ? self->filter : NEWSV (0, 0);
1148	OUTPUT:	1574	OUTPUT:
1149	RETVAL	1575	RETVAL
1150		1576
1151	void encode (CBOR *self, SV *scalar)	1577	void encode (CBOR *self, SV *scalar)
1152	PPCODE:	1578	PPCODE:
…		…
1167	EXTEND (SP, 2);	1593	EXTEND (SP, 2);
1168	PUSHs (sv);	1594	PUSHs (sv);
1169	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1595	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1170	}	1596	}
1171		1597
		1598	void incr_parse (CBOR *self, SV *cborstr)
		1599	ALIAS:
		1600	incr_parse_multiple = 1
		1601	PPCODE:
		1602	{
		1603	if (SvUTF8 (cborstr))
		1604	sv_utf8_downgrade (cborstr, 0);
		1605
		1606	if (!self->incr_count)
		1607	{
		1608	self->incr_count = newAV ();
		1609	self->incr_pos = 0;
		1610	self->incr_need = 1;
		1611
		1612	av_push (self->incr_count, newSViv (1));
		1613	}
		1614
		1615	do
		1616	{
		1617	if (!incr_parse (self, cborstr))
		1618	{
		1619	if (self->incr_need > self->max_size && self->max_size)
		1620	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1621	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1622
		1623	break;
		1624	}
		1625
		1626	SV *sv;
		1627	char *offset;
		1628
		1629	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1630	XPUSHs (sv);
		1631
		1632	sv_chop (cborstr, offset);
		1633
		1634	av_clear (self->incr_count);
		1635	av_push (self->incr_count, newSViv (1));
		1636
		1637	self->incr_pos = 0;
		1638	self->incr_need = self->incr_pos + 1;
		1639	}
		1640	while (ix);
		1641	}
		1642
		1643	void incr_reset (CBOR *self)
		1644	CODE:
		1645	{
		1646	SvREFCNT_dec (self->incr_count);
		1647	self->incr_count = 0;
		1648	}
		1649
		1650	void DESTROY (CBOR *self)
		1651	PPCODE:
		1652	cbor_free (self);
		1653
1172	PROTOTYPES: ENABLE	1654	PROTOTYPES: ENABLE
1173		1655
1174	void encode_cbor (SV *scalar)	1656	void encode_cbor (SV *scalar)
		1657	ALIAS:
		1658	encode_cbor = 0
		1659	encode_cbor_sharing = F_ALLOW_SHARING
1175	PPCODE:	1660	PPCODE:
1176	{	1661	{
1177	CBOR cbor;	1662	CBOR cbor;
1178	cbor_init (&cbor);	1663	cbor_init (&cbor);
		1664	cbor.flags |= ix;
1179	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1665	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1180	XPUSHs (scalar);	1666	XPUSHs (scalar);
1181	}	1667	}
1182		1668
1183	void decode_cbor (SV *cborstr)	1669	void decode_cbor (SV *cborstr)
…		…
1187	cbor_init (&cbor);	1673	cbor_init (&cbor);
1188	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;	1674	PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN;
1189	XPUSHs (cborstr);	1675	XPUSHs (cborstr);
1190	}	1676	}
1191		1677
		1678	#ifdef __AFL_COMPILER
		1679
		1680	void
		1681	afl_init ()
		1682	CODE:
		1683	__AFL_INIT ();
		1684
		1685	int
		1686	afl_loop (unsigned int count = 10000)
		1687	CODE:
		1688	RETVAL = __AFL_LOOP (count);
		1689	OUTPUT:
		1690	RETVAL
		1691
		1692	#endif
		1693

Diff Legend

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