[ViewVC] Diff of: cvs/CBOR-XS/XS.xs

Comparing CBOR-XS/XS.xs (file contents):
Revision 1.32 by root, Thu Nov 28 12:08:07 2013 UTC vs.
Revision 1.52 by root, Sun Apr 24 19:31:55 2016 UTC

…		…
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		11
		12	#define ECB_NO_THREADS 1
12	#include "ecb.h"	13	#include "ecb.h"
13		14
14	// compatibility with perl <5.18	15	// compatibility with perl <5.18
15	#ifndef HvNAMELEN_get	16	#ifndef HvNAMELEN_get
16	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))	17	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
…		…
23	#endif	24	#endif
24	#ifndef SvREFCNT_dec_NN	25	#ifndef SvREFCNT_dec_NN
25	# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)	26	# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv)
26	#endif	27	#endif
27		28
		29	// known major and minor types
		30	enum cbor_type
		31	{
		32	MAJOR_SHIFT = 5,
		33	MINOR_MASK = 0x1f,
		34
		35	MAJOR_POS_INT = 0 << MAJOR_SHIFT,
		36	MAJOR_NEG_INT = 1 << MAJOR_SHIFT,
		37	MAJOR_BYTES = 2 << MAJOR_SHIFT,
		38	MAJOR_TEXT = 3 << MAJOR_SHIFT,
		39	MAJOR_ARRAY = 4 << MAJOR_SHIFT,
		40	MAJOR_MAP = 5 << MAJOR_SHIFT,
		41	MAJOR_TAG = 6 << MAJOR_SHIFT,
		42	MAJOR_MISC = 7 << MAJOR_SHIFT,
		43
		44	// INT/STRING/ARRAY/MAP subtypes
		45	LENGTH_EXT1 = 24,
		46	LENGTH_EXT2 = 25,
		47	LENGTH_EXT4 = 26,
		48	LENGTH_EXT8 = 27,
		49
		50	// SIMPLE types (effectively MISC subtypes)
		51	SIMPLE_FALSE = 20,
		52	SIMPLE_TRUE = 21,
		53	SIMPLE_NULL = 22,
		54	SIMPLE_UNDEF = 23,
		55
		56	// MISC subtype (unused)
		57	MISC_EXT1 = 24,
		58	MISC_FLOAT16 = 25,
		59	MISC_FLOAT32 = 26,
		60	MISC_FLOAT64 = 27,
		61
		62	// BYTES/TEXT/ARRAY/MAP
		63	MINOR_INDEF = 31,
		64	};
		65
28	// known tags	66	// known tags
29	enum cbor_tag	67	enum cbor_tag
30	{	68	{
31	// extensions	69	// extensions
32	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref	70	CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref
33	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object	71	CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object
34	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object	72	CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object
35	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing	73	CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing
36	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing	74	CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing
37	CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref	75	CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref
38	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection	76	CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection
39		77
40	// rfc7049	78	// rfc7049
41	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8	79	CBOR_TAG_DATETIME = 0, // rfc4287, utf-8
42	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any	80	CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any
43	CBOR_TAG_POS_BIGNUM = 2, // byte string	81	CBOR_TAG_POS_BIGNUM = 2, // byte string
44	CBOR_TAG_NEG_BIGNUM = 3, // byte string	82	CBOR_TAG_NEG_BIGNUM = 3, // byte string
45	CBOR_TAG_DECIMAL = 4, // decimal fraction, array	83	CBOR_TAG_DECIMAL = 4, // decimal fraction, array
46	CBOR_TAG_BIGFLOAT = 5, // array	84	CBOR_TAG_BIGFLOAT = 5, // array
47		85
48	CBOR_TAG_CONV_B64U = 21, // base64url, any	86	CBOR_TAG_CONV_B64U = 21, // base64url, any
49	CBOR_TAG_CONV_B64 = 22, // base64, any	87	CBOR_TAG_CONV_B64 = 22, // base64, any
50	CBOR_TAG_CONV_HEX = 23, // base16, any	88	CBOR_TAG_CONV_HEX = 23, // base16, any
51	CBOR_TAG_CBOR = 24, // embedded cbor, byte string	89	CBOR_TAG_CBOR = 24, // embedded cbor, byte string
52		90
53	CBOR_TAG_URI = 32, // URI rfc3986, utf-8	91	CBOR_TAG_URI = 32, // URI rfc3986, utf-8
54	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8	92	CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8
55	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8	93	CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8
56	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8	94	CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8
57	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8	95	CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8
58		96
59	CBOR_TAG_MAGIC = 55799 // self-describe cbor	97	CBOR_TAG_MAGIC = 55799, // self-describe cbor
60	};	98	};
61		99
62	#define F_SHRINK 0x00000001UL	100	#define F_SHRINK 0x00000001UL
63	#define F_ALLOW_UNKNOWN 0x00000002UL	101	#define F_ALLOW_UNKNOWN 0x00000002UL
64	#define F_ALLOW_SHARING 0x00000004UL	102	#define F_ALLOW_SHARING 0x00000004UL
		103	#define F_ALLOW_CYCLES 0x00000008UL
65	#define F_PACK_STRINGS 0x00000008UL	104	#define F_PACK_STRINGS 0x00000010UL
		105	#define F_UTF8_STRINGS 0x00000020UL
		106	#define F_VALIDATE_UTF8 0x00000040UL
66		107
67	#define INIT_SIZE 32 // initial scalar size to be allocated	108	#define INIT_SIZE 32 // initial scalar size to be allocated
68		109
69	#define SB do {	110	#define SB do {
70	#define SE } while (0)	111	#define SE } while (0)
…		…
89	typedef struct {	130	typedef struct {
90	U32 flags;	131	U32 flags;
91	U32 max_depth;	132	U32 max_depth;
92	STRLEN max_size;	133	STRLEN max_size;
93	SV *filter;	134	SV *filter;
		135
		136	// for the incremental parser
		137	STRLEN incr_pos; // the current offset into the text
		138	STRLEN incr_need; // minimum bytes needed to decode
		139	AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef.
94	} CBOR;	140	} CBOR;
95		141
96	ecb_inline void	142	ecb_inline void
97	cbor_init (CBOR *cbor)	143	cbor_init (CBOR *cbor)
98	{	144	{
…		…
102		148
103	ecb_inline void	149	ecb_inline void
104	cbor_free (CBOR *cbor)	150	cbor_free (CBOR *cbor)
105	{	151	{
106	SvREFCNT_dec (cbor->filter);	152	SvREFCNT_dec (cbor->filter);
		153	SvREFCNT_dec (cbor->incr_count);
107	}	154	}
108		155
109	/////////////////////////////////////////////////////////////////////////////	156	/////////////////////////////////////////////////////////////////////////////
110	// utility functions	157	// utility functions
111		158
…		…
189	static void	236	static void
190	encode_uint (enc_t *enc, int major, UV len)	237	encode_uint (enc_t *enc, int major, UV len)
191	{	238	{
192	need (enc, 9);	239	need (enc, 9);
193		240
194	if (ecb_expect_true (len < 24))	241	if (ecb_expect_true (len < LENGTH_EXT1))
195	*enc->cur++ = major \| len;	242	*enc->cur++ = major \| len;
196	else if (ecb_expect_true (len <= 0xff))	243	else if (ecb_expect_true (len <= 0xffU))
197	{	244	{
198	*enc->cur++ = major \| 24;	245	*enc->cur++ = major \| LENGTH_EXT1;
199	*enc->cur++ = len;	246	*enc->cur++ = len;
200	}	247	}
201	else if (len <= 0xffff)	248	else if (len <= 0xffffU)
202	{	249	{
203	*enc->cur++ = major \| 25;	250	*enc->cur++ = major \| LENGTH_EXT2;
204	*enc->cur++ = len >> 8;	251	*enc->cur++ = len >> 8;
205	*enc->cur++ = len;	252	*enc->cur++ = len;
206	}	253	}
207	else if (len <= 0xffffffff)	254	else if (len <= 0xffffffffU)
208	{	255	{
209	*enc->cur++ = major \| 26;	256	*enc->cur++ = major \| LENGTH_EXT4;
210	*enc->cur++ = len >> 24;	257	*enc->cur++ = len >> 24;
211	*enc->cur++ = len >> 16;	258	*enc->cur++ = len >> 16;
212	*enc->cur++ = len >> 8;	259	*enc->cur++ = len >> 8;
213	*enc->cur++ = len;	260	*enc->cur++ = len;
214	}	261	}
215	else	262	else
216	{	263	{
217	*enc->cur++ = major \| 27;	264	*enc->cur++ = major \| LENGTH_EXT8;
218	*enc->cur++ = len >> 56;	265	*enc->cur++ = len >> 56;
219	*enc->cur++ = len >> 48;	266	*enc->cur++ = len >> 48;
220	*enc->cur++ = len >> 40;	267	*enc->cur++ = len >> 40;
221	*enc->cur++ = len >> 32;	268	*enc->cur++ = len >> 32;
222	*enc->cur++ = len >> 24;	269	*enc->cur++ = len >> 24;
…		…
227	}	274	}
228		275
229	ecb_inline void	276	ecb_inline void
230	encode_tag (enc_t *enc, UV tag)	277	encode_tag (enc_t *enc, UV tag)
231	{	278	{
232	encode_uint (enc, 0xc0, tag);	279	encode_uint (enc, MAJOR_TAG, tag);
233	}	280	}
234		281
235	ecb_inline void	282	ecb_inline void
236	encode_str (enc_t enc, int utf8, char str, STRLEN len)	283	encode_str (enc_t enc, int utf8, char str, STRLEN len)
237	{	284	{
238	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	285	if (ecb_expect_false (enc->cbor.flags & F_UTF8_STRINGS))
		286	if (!utf8)
		287	{
		288	// exceptional path for bytze strings that need to be utf8-encoded
		289	STRLEN ulen = len;
		290	U8 p, pend = (U8 *)str + len;
		291
		292	for (p = (U8 *)str; p < pend; ++p)
		293	ulen += *p >> 7; // count set high bits
		294
		295	encode_uint (enc, MAJOR_TEXT, ulen);
		296
		297	need (enc, ulen);
		298	for (p = (U8 *)str; p < pend; ++p)
		299	if (*p < 0x80)
		300	enc->cur++ = p;
		301	else
		302	{
		303	enc->cur++ = 0xc0 + (p >> 6);
		304	enc->cur++ = 0x80 + (p & 63);
		305	}
		306
		307	return;
		308	}
		309
		310	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
239	need (enc, len);	311	need (enc, len);
240	memcpy (enc->cur, str, len);	312	memcpy (enc->cur, str, len);
241	enc->cur += len;	313	enc->cur += len;
242	}	314	}
243		315
…		…
250		322
251	if (SvOK (*svp))	323	if (SvOK (*svp))
252	{	324	{
253	// already registered, use stringref	325	// already registered, use stringref
254	encode_tag (enc, CBOR_TAG_STRINGREF);	326	encode_tag (enc, CBOR_TAG_STRINGREF);
255	encode_uint (enc, 0x00, SvUV (*svp));	327	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
256	return;	328	return;
257	}	329	}
258	else if (len >= minimum_string_length (enc->stringref_idx))	330	else if (len >= minimum_string_length (enc->stringref_idx))
259	{	331	{
260	// register only	332	// register only
…		…
276	if (enc->depth >= enc->cbor.max_depth)	348	if (enc->depth >= enc->cbor.max_depth)
277	croak (ERR_NESTING_EXCEEDED);	349	croak (ERR_NESTING_EXCEEDED);
278		350
279	++enc->depth;	351	++enc->depth;
280		352
281	encode_uint (enc, 0x80, len + 1);	353	encode_uint (enc, MAJOR_ARRAY, len + 1);
282		354
		355	if (SvMAGICAL (av))
283	for (i = 0; i <= len; ++i)	356	for (i = 0; i <= len; ++i)
284	{	357	{
285	SV **svp = av_fetch (av, i, 0);	358	SV **svp = av_fetch (av, i, 0);
286	encode_sv (enc, svp ? *svp : &PL_sv_undef);	359	encode_sv (enc, svp ? *svp : &PL_sv_undef);
287	}	360	}
		361	else
		362	for (i = 0; i <= len; ++i)
		363	{
		364	SV *sv = AvARRAY (av)[i];
		365	encode_sv (enc, sv ? sv : &PL_sv_undef);
		366	}
288		367
289	--enc->depth;	368	--enc->depth;
290	}	369	}
291		370
292	static void	371	static void
…		…
301		380
302	int pairs = hv_iterinit (hv);	381	int pairs = hv_iterinit (hv);
303	int mg = SvMAGICAL (hv);	382	int mg = SvMAGICAL (hv);
304		383
305	if (mg)	384	if (mg)
306	encode_ch (enc, 0xa0 \| 31);	385	encode_ch (enc, MAJOR_MAP \| MINOR_INDEF);
307	else	386	else
308	encode_uint (enc, 0xa0, pairs);	387	encode_uint (enc, MAJOR_MAP, pairs);
309		388
310	while ((he = hv_iternext (hv)))	389	while ((he = hv_iternext (hv)))
311	{	390	{
312	if (HeKLEN (he) == HEf_SVKEY)	391	if (HeKLEN (he) == HEf_SVKEY)
313	encode_sv (enc, HeSVKEY (he));	392	encode_sv (enc, HeSVKEY (he));
…		…
316		395
317	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));	396	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
318	}	397	}
319		398
320	if (mg)	399	if (mg)
321	encode_ch (enc, 0xe0 \| 31);	400	encode_ch (enc, MAJOR_MISC \| MINOR_INDEF);
322		401
323	--enc->depth;	402	--enc->depth;
324	}	403	}
325		404
326	// encode objects, arrays and special \0=false and \1=true values.	405	// encode objects, arrays and special \0=false and \1=true values.
327	static void	406	static void
328	encode_rv (enc_t enc, SV sv)	407	encode_rv (enc_t enc, SV sv)
329	{	408	{
330	SvGETMAGIC (sv);	409	SvGETMAGIC (sv);
331
332	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)
333	&& ecb_expect_false (SvREFCNT (sv) > 1))
334	{
335	if (!enc->shareable)
336	enc->shareable = (HV )sv_2mortal ((SV )newHV ());
337
338	SV *svp = hv_fetch (enc->shareable, (char )&sv, sizeof (sv), 1);
339
340	if (SvOK (*svp))
341	{
342	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
343	encode_uint (enc, 0x00, SvUV (*svp));
344	return;
345	}
346	else
347	{
348	sv_setuv (*svp, enc->shareable_idx);
349	++enc->shareable_idx;
350	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
351	}
352	}
353		410
354	svtype svt = SvTYPE (sv);	411	svtype svt = SvTYPE (sv);
355		412
356	if (ecb_expect_false (SvOBJECT (sv)))	413	if (ecb_expect_false (SvOBJECT (sv)))
357	{	414	{
…		…
364	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash	421	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash
365	? cbor_tagged_stash	422	? cbor_tagged_stash
366	: gv_stashpv ("CBOR::XS::Tagged" , 1);	423	: gv_stashpv ("CBOR::XS::Tagged" , 1);
367		424
368	HV *stash = SvSTASH (sv);	425	HV *stash = SvSTASH (sv);
369	GV *method;
370		426
371	if (stash == boolean_stash)	427	if (stash == boolean_stash)
372	encode_ch (enc, SvIV (sv) ? 0xe0 \| 21 : 0xe0 \| 20);	428	{
		429	encode_ch (enc, SvIV (sv) ? MAJOR_MISC \| SIMPLE_TRUE : MAJOR_MISC \| SIMPLE_FALSE);
		430	return;
		431	}
373	else if (stash == error_stash)	432	else if (stash == error_stash)
374	encode_ch (enc, 0xe0 \| 23);	433	{
		434	encode_ch (enc, MAJOR_MISC \| SIMPLE_UNDEF);
		435	return;
		436	}
375	else if (stash == tagged_stash)	437	else if (stash == tagged_stash)
376	{	438	{
377	if (svt != SVt_PVAV)	439	if (svt != SVt_PVAV)
378	croak ("encountered CBOR::XS::Tagged object that isn't an array");	440	croak ("encountered CBOR::XS::Tagged object that isn't an array");
379		441
380	encode_uint (enc, 0xc0, SvUV (av_fetch ((AV )sv, 0, 1)));	442	encode_uint (enc, MAJOR_TAG, SvUV (av_fetch ((AV )sv, 0, 1)));
381	encode_sv (enc, av_fetch ((AV )sv, 1, 1));	443	encode_sv (enc, av_fetch ((AV )sv, 1, 1));
		444
		445	return;
		446	}
		447	}
		448
		449	if (ecb_expect_false (SvREFCNT (sv) > 1)
		450	&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
		451	{
		452	if (!enc->shareable)
		453	enc->shareable = (HV )sv_2mortal ((SV )newHV ());
		454
		455	SV *svp = hv_fetch (enc->shareable, (char )&sv, sizeof (sv), 1);
		456
		457	if (SvOK (*svp))
382	}	458	{
		459	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
		460	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		461	return;
		462	}
		463	else
		464	{
		465	sv_setuv (*svp, enc->shareable_idx);
		466	++enc->shareable_idx;
		467	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
		468	}
		469	}
		470
		471	if (ecb_expect_false (SvOBJECT (sv)))
		472	{
		473	HV *stash = SvSTASH (sv);
		474	GV *method;
		475
383	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	476	if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
384	{	477	{
385	dSP;	478	dSP;
386		479
387	ENTER; SAVETMPS; PUSHMARK (SP);	480	ENTER; SAVETMPS;
		481	PUSHMARK (SP);
388	// we re-bless the reference to get overload and other niceties right	482	// we re-bless the reference to get overload and other niceties right
389	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	483	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
390		484
391	PUTBACK;	485	PUTBACK;
392	// G_SCALAR ensures that return value is 1	486	// G_SCALAR ensures that return value is 1
…		…
405	}	499	}
406	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	500	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
407	{	501	{
408	dSP;	502	dSP;
409		503
410	ENTER; SAVETMPS; PUSHMARK (SP);	504	ENTER; SAVETMPS;
		505	SAVESTACK_POS ();
		506	PUSHMARK (SP);
411	EXTEND (SP, 2);	507	EXTEND (SP, 2);
412	// we re-bless the reference to get overload and other niceties right	508	// we re-bless the reference to get overload and other niceties right
413	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	509	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
414	PUSHs (sv_cbor);	510	PUSHs (sv_cbor);
415		511
…		…
420	// catch this surprisingly common error	516	// catch this surprisingly common error
421	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	517	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)
422	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));	518	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
423		519
424	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	520	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
425	encode_uint (enc, 0x80, count + 1);	521	encode_uint (enc, MAJOR_ARRAY, count + 1);
426	encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	522	encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
427		523
428	while (count)	524	while (count)
429	encode_sv (enc, SP[1 - count--]);	525	encode_sv (enc, SP[1 - count--]);
430		526
…		…
452	{	548	{
453	double nv = SvNVX (sv);	549	double nv = SvNVX (sv);
454		550
455	need (enc, 9);	551	need (enc, 9);
456		552
457	if (ecb_expect_false (nv == (U32)nv))	553	if (ecb_expect_false (nv == (NV)(U32)nv))
458	encode_uint (enc, 0x00, (U32)nv);	554	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
459	//TODO: maybe I32?	555	//TODO: maybe I32?
460	else if (ecb_expect_false (nv == (float)nv))	556	else if (ecb_expect_false (nv == (float)nv))
461	{	557	{
462	uint32_t fp = ecb_float_to_binary32 (nv);	558	uint32_t fp = ecb_float_to_binary32 (nv);
463		559
464	*enc->cur++ = 0xe0 \| 26;	560	*enc->cur++ = MAJOR_MISC \| MISC_FLOAT32;
465		561
466	if (!ecb_big_endian ())	562	if (!ecb_big_endian ())
467	fp = ecb_bswap32 (fp);	563	fp = ecb_bswap32 (fp);
468		564
469	memcpy (enc->cur, &fp, 4);	565	memcpy (enc->cur, &fp, 4);
…		…
471	}	567	}
472	else	568	else
473	{	569	{
474	uint64_t fp = ecb_double_to_binary64 (nv);	570	uint64_t fp = ecb_double_to_binary64 (nv);
475		571
476	*enc->cur++ = 0xe0 \| 27;	572	*enc->cur++ = MAJOR_MISC \| MISC_FLOAT64;
477		573
478	if (!ecb_big_endian ())	574	if (!ecb_big_endian ())
479	fp = ecb_bswap64 (fp);	575	fp = ecb_bswap64 (fp);
480		576
481	memcpy (enc->cur, &fp, 8);	577	memcpy (enc->cur, &fp, 8);
…		…
497	else if (SvNOKp (sv))	593	else if (SvNOKp (sv))
498	encode_nv (enc, sv);	594	encode_nv (enc, sv);
499	else if (SvIOKp (sv))	595	else if (SvIOKp (sv))
500	{	596	{
501	if (SvIsUV (sv))	597	if (SvIsUV (sv))
502	encode_uint (enc, 0x00, SvUVX (sv));	598	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
503	else if (SvIVX (sv) >= 0)	599	else if (SvIVX (sv) >= 0)
504	encode_uint (enc, 0x00, SvIVX (sv));	600	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
505	else	601	else
506	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	602	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
507	}	603	}
508	else if (SvROK (sv))	604	else if (SvROK (sv))
509	encode_rv (enc, SvRV (sv));	605	encode_rv (enc, SvRV (sv));
510	else if (!SvOK (sv))	606	else if (!SvOK (sv))
511	encode_ch (enc, 0xe0 \| 22);	607	encode_ch (enc, MAJOR_MISC \| SIMPLE_NULL);
512	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	608	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
513	encode_ch (enc, 0xe0 \| 23);	609	encode_ch (enc, MAJOR_MISC \| SIMPLE_UNDEF);
514	else	610	else
515	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	611	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
516	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	612	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
517	}	613	}
518		614
519	static SV *	615	static SV *
520	encode_cbor (SV scalar, CBOR cbor)	616	encode_cbor (SV scalar, CBOR cbor)
521	{	617	{
522	enc_t enc = { };	618	enc_t enc = { 0 };
523		619
524	enc.cbor = *cbor;	620	enc.cbor = *cbor;
525	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	621	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
526	enc.cur = SvPVX (enc.sv);	622	enc.cur = SvPVX (enc.sv);
527	enc.end = SvEND (enc.sv);	623	enc.end = SvEND (enc.sv);
…		…
571	#define DEC_DEC_DEPTH --dec->depth	667	#define DEC_DEC_DEPTH --dec->depth
572		668
573	static UV	669	static UV
574	decode_uint (dec_t *dec)	670	decode_uint (dec_t *dec)
575	{	671	{
576	switch (*dec->cur & 31)	672	U8 m = *dec->cur & MINOR_MASK;
577	{	673	++dec->cur;
578	case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
579	case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15:
580	case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23:
581	return *dec->cur++ & 31;
582		674
583	case 24:	675	if (ecb_expect_true (m < LENGTH_EXT1))
		676	return m;
		677	else if (ecb_expect_true (m == LENGTH_EXT1))
		678	{
584	WANT (2);	679	WANT (1);
585	dec->cur += 2;	680	dec->cur += 1;
586	return dec->cur[-1];	681	return dec->cur[-1];
587		682	}
588	case 25:	683	else if (ecb_expect_true (m == LENGTH_EXT2))
		684	{
589	WANT (3);	685	WANT (2);
590	dec->cur += 3;	686	dec->cur += 2;
591	return (((UV)dec->cur[-2]) << 8)	687	return (((UV)dec->cur[-2]) << 8)
592	\| ((UV)dec->cur[-1]);	688	\| ((UV)dec->cur[-1]);
593		689	}
594	case 26:	690	else if (ecb_expect_true (m == LENGTH_EXT4))
		691	{
595	WANT (5);	692	WANT (4);
596	dec->cur += 5;	693	dec->cur += 4;
597	return (((UV)dec->cur[-4]) << 24)	694	return (((UV)dec->cur[-4]) << 24)
598	\| (((UV)dec->cur[-3]) << 16)	695	\| (((UV)dec->cur[-3]) << 16)
599	\| (((UV)dec->cur[-2]) << 8)	696	\| (((UV)dec->cur[-2]) << 8)
600	\| ((UV)dec->cur[-1]);	697	\| ((UV)dec->cur[-1]);
601		698	}
602	case 27:	699	else if (ecb_expect_true (m == LENGTH_EXT8))
		700	{
603	WANT (9);	701	WANT (8);
604	dec->cur += 9;	702	dec->cur += 8;
		703
		704	return
		705	#if UVSIZE < 8
		706	0
		707	#else
605	return (((UV)dec->cur[-8]) << 56)	708	(((UV)dec->cur[-8]) << 56)
606	\| (((UV)dec->cur[-7]) << 48)	709	\| (((UV)dec->cur[-7]) << 48)
607	\| (((UV)dec->cur[-6]) << 40)	710	\| (((UV)dec->cur[-6]) << 40)
608	\| (((UV)dec->cur[-5]) << 32)	711	\| (((UV)dec->cur[-5]) << 32)
		712	#endif
609	\| (((UV)dec->cur[-4]) << 24)	713	\| (((UV)dec->cur[-4]) << 24)
610	\| (((UV)dec->cur[-3]) << 16)	714	\| (((UV)dec->cur[-3]) << 16)
611	\| (((UV)dec->cur[-2]) << 8)	715	\| (((UV)dec->cur[-2]) << 8)
612	\| ((UV)dec->cur[-1]);	716	\| ((UV)dec->cur[-1]);
613		717	}
614	default:	718	else
615	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	719	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
616	}
617		720
618	fail:	721	fail:
619	return 0;	722	return 0;
620	}	723	}
621		724
…		…
626	{	729	{
627	AV *av = newAV ();	730	AV *av = newAV ();
628		731
629	DEC_INC_DEPTH;	732	DEC_INC_DEPTH;
630		733
631	if ((*dec->cur & 31) == 31)	734	if (*dec->cur == (MAJOR_ARRAY \| MINOR_INDEF))
632	{	735	{
633	++dec->cur;	736	++dec->cur;
634		737
635	for (;;)	738	for (;;)
636	{	739	{
637	WANT (1);	740	WANT (1);
638		741
639	if (*dec->cur == (0xe0 \| 31))	742	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
640	{	743	{
641	++dec->cur;	744	++dec->cur;
642	break;	745	break;
643	}	746	}
644		747
…		…
647	}	750	}
648	else	751	else
649	{	752	{
650	int i, len = decode_uint (dec);	753	int i, len = decode_uint (dec);
651		754
		755	WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays
652	av_fill (av, len - 1);	756	av_fill (av, len - 1);
653		757
654	for (i = 0; i < len; ++i)	758	for (i = 0; i < len; ++i)
655	AvARRAY (av)[i] = decode_sv (dec);	759	AvARRAY (av)[i] = decode_sv (dec);
656	}	760	}
…		…
669	{	773	{
670	// for speed reasons, we specialcase single-string	774	// for speed reasons, we specialcase single-string
671	// byte or utf-8 strings as keys, but only when !stringref	775	// byte or utf-8 strings as keys, but only when !stringref
672		776
673	if (ecb_expect_true (!dec->stringref))	777	if (ecb_expect_true (!dec->stringref))
674	if (dec->cur >= 0x40 && dec->cur <= 0x40 + 27)	778	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
675	{	779	{
676	I32 len = decode_uint (dec);	780	I32 len = decode_uint (dec);
677	char key = (char )dec->cur;	781	char key = (char )dec->cur;
678		782
		783	WANT (len);
679	dec->cur += len;	784	dec->cur += len;
680		785
681	if (ecb_expect_false (dec->stringref))
682	av_push (dec->stringref, newSVpvn (key, len));
683
684	hv_store (hv, key, len, decode_sv (dec), 0);	786	hv_store (hv, key, len, decode_sv (dec), 0);
685		787
686	return;	788	return;
687	}	789	}
688	else if (dec->cur >= 0x60 && dec->cur <= 0x60 + 27)	790	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
689	{	791	{
690	I32 len = decode_uint (dec);	792	I32 len = decode_uint (dec);
691	char key = (char )dec->cur;	793	char key = (char )dec->cur;
692		794
		795	WANT (len);
693	dec->cur += len;	796	dec->cur += len;
694		797
695	if (ecb_expect_false (dec->stringref))	798	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
696	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	799	if (!is_utf8_string (key, len))
		800	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
697		801
698	hv_store (hv, key, -len, decode_sv (dec), 0);	802	hv_store (hv, key, -len, decode_sv (dec), 0);
699		803
700	return;	804	return;
701	}	805	}
…		…
703	SV *k = decode_sv (dec);	807	SV *k = decode_sv (dec);
704	SV *v = decode_sv (dec);	808	SV *v = decode_sv (dec);
705		809
706	hv_store_ent (hv, k, v, 0);	810	hv_store_ent (hv, k, v, 0);
707	SvREFCNT_dec (k);	811	SvREFCNT_dec (k);
		812
		813	fail:
		814	;
708	}	815	}
709		816
710	static SV *	817	static SV *
711	decode_hv (dec_t *dec)	818	decode_hv (dec_t *dec)
712	{	819	{
713	HV *hv = newHV ();	820	HV *hv = newHV ();
714		821
715	DEC_INC_DEPTH;	822	DEC_INC_DEPTH;
716		823
717	if ((*dec->cur & 31) == 31)	824	if (*dec->cur == (MAJOR_MAP \| MINOR_INDEF))
718	{	825	{
719	++dec->cur;	826	++dec->cur;
720		827
721	for (;;)	828	for (;;)
722	{	829	{
723	WANT (1);	830	WANT (1);
724		831
725	if (*dec->cur == (0xe0 \| 31))	832	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
726	{	833	{
727	++dec->cur;	834	++dec->cur;
728	break;	835	break;
729	}	836	}
730		837
…		…
751	static SV *	858	static SV *
752	decode_str (dec_t *dec, int utf8)	859	decode_str (dec_t *dec, int utf8)
753	{	860	{
754	SV *sv = 0;	861	SV *sv = 0;
755		862
756	if ((*dec->cur & 31) == 31)	863	if ((*dec->cur & MINOR_MASK) == MINOR_INDEF)
757	{	864	{
		865	// indefinite length strings
758	++dec->cur;	866	++dec->cur;
759		867
		868	U8 major = *dec->cur & MAJOR_MISC;
		869
760	sv = newSVpvn ("", 0);	870	sv = newSVpvn ("", 0);
761		871
762	// not very fast, and certainly not robust against illegal input
763	for (;;)	872	for (;;)
764	{	873	{
765	WANT (1);	874	WANT (1);
766		875
767	if (*dec->cur == (0xe0 \| 31))	876	if ((*dec->cur - major) > LENGTH_EXT8)
		877	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
768	{	878	{
769	++dec->cur;	879	++dec->cur;
770	break;	880	break;
771	}	881	}
		882	else
		883	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
772		884
773	sv_catsv (sv, decode_sv (dec));	885	STRLEN len = decode_uint (dec);
		886
		887	WANT (len);
		888	sv_catpvn (sv, dec->cur, len);
		889	dec->cur += len;
774	}	890	}
775	}	891	}
776	else	892	else
777	{	893	{
778	STRLEN len = decode_uint (dec);	894	STRLEN len = decode_uint (dec);
…		…
785	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))	901	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
786	av_push (dec->stringref, SvREFCNT_inc_NN (sv));	902	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
787	}	903	}
788		904
789	if (utf8)	905	if (utf8)
		906	{
		907	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		908	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		909	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		910
790	SvUTF8_on (sv);	911	SvUTF8_on (sv);
		912	}
791		913
792	return sv;	914	return sv;
793		915
794	fail:	916	fail:
795	SvREFCNT_dec (sv);	917	SvREFCNT_dec (sv);
…		…
827	}	949	}
828	break;	950	break;
829		951
830	case CBOR_TAG_STRINGREF:	952	case CBOR_TAG_STRINGREF:
831	{	953	{
832	if ((*dec->cur >> 5) != 0)	954	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
833	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	955	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
834		956
835	UV idx = decode_uint (dec);	957	UV idx = decode_uint (dec);
836		958
837	if (!dec->stringref \|\| (int)idx > AvFILLp (dec->stringref))	959	if (!dec->stringref \|\| (int)idx > AvFILLp (dec->stringref))
…		…
844	case CBOR_TAG_VALUE_SHAREABLE:	966	case CBOR_TAG_VALUE_SHAREABLE:
845	{	967	{
846	if (ecb_expect_false (!dec->shareable))	968	if (ecb_expect_false (!dec->shareable))
847	dec->shareable = (AV )sv_2mortal ((SV )newAV ());	969	dec->shareable = (AV )sv_2mortal ((SV )newAV ());
848		970
		971	if (dec->cbor.flags & F_ALLOW_CYCLES)
		972	{
849	sv = newSV (0);	973	sv = newSV (0);
850	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	974	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
851		975
852	SV *osv = decode_sv (dec);	976	SV *osv = decode_sv (dec);
853	sv_setsv (sv, osv);	977	sv_setsv (sv, osv);
854	SvREFCNT_dec_NN (osv);	978	SvREFCNT_dec_NN (osv);
		979	}
		980	else
		981	{
		982	av_push (dec->shareable, &PL_sv_undef);
		983	int idx = AvFILLp (dec->shareable);
		984	sv = decode_sv (dec);
		985	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		986	}
855	}	987	}
856	break;	988	break;
857		989
858	case CBOR_TAG_VALUE_SHAREDREF:	990	case CBOR_TAG_VALUE_SHAREDREF:
859	{	991	{
860	if ((*dec->cur >> 5) != 0)	992	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
861	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	993	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
862		994
863	UV idx = decode_uint (dec);	995	UV idx = decode_uint (dec);
864		996
865	if (!dec->shareable \|\| (int)idx > AvFILLp (dec->shareable))	997	if (!dec->shareable \|\| (int)idx > AvFILLp (dec->shareable))
866	ERR ("corrupted CBOR data (sharedref index out of bounds)");	998	ERR ("corrupted CBOR data (sharedref index out of bounds)");
867		999
868	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	1000	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1001
		1002	if (sv == &PL_sv_undef)
		1003	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
869	}	1004	}
870	break;	1005	break;
871		1006
872	case CBOR_TAG_PERL_OBJECT:	1007	case CBOR_TAG_PERL_OBJECT:
873	{	1008	{
…		…
888	if (!method)	1023	if (!method)
889	ERR ("cannot decode perl-object (package does not have a THAW method)");	1024	ERR ("cannot decode perl-object (package does not have a THAW method)");
890		1025
891	dSP;	1026	dSP;
892		1027
893	ENTER; SAVETMPS; PUSHMARK (SP);	1028	ENTER; SAVETMPS;
		1029	PUSHMARK (SP);
894	EXTEND (SP, len + 1);	1030	EXTEND (SP, len + 1);
895	// we re-bless the reference to get overload and other niceties right	1031	// we re-bless the reference to get overload and other niceties right
896	PUSHs (*av_fetch (av, 0, 1));	1032	PUSHs (*av_fetch (av, 0, 1));
897	PUSHs (sv_cbor);	1033	PUSHs (sv_cbor);
898		1034
…		…
923	default:	1059	default:
924	{	1060	{
925	sv = decode_sv (dec);	1061	sv = decode_sv (dec);
926		1062
927	dSP;	1063	dSP;
928	ENTER; SAVETMPS; PUSHMARK (SP);	1064	ENTER; SAVETMPS;
		1065	SAVESTACK_POS ();
		1066	PUSHMARK (SP);
929	EXTEND (SP, 2);	1067	EXTEND (SP, 2);
930	PUSHs (newSVuv (tag));	1068	PUSHs (newSVuv (tag));
931	PUSHs (sv);	1069	PUSHs (sv);
932		1070
933	PUTBACK;	1071	PUTBACK;
…		…
974	static SV *	1112	static SV *
975	decode_sv (dec_t *dec)	1113	decode_sv (dec_t *dec)
976	{	1114	{
977	WANT (1);	1115	WANT (1);
978		1116
979	switch (*dec->cur >> 5)	1117	switch (*dec->cur >> MAJOR_SHIFT)
980	{	1118	{
981	case 0: // unsigned int	1119	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
982	return newSVuv (decode_uint (dec));	1120	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
983	case 1: // negative int	1121	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
984	return newSViv (-1 - (IV)decode_uint (dec));	1122	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
985	case 2: // octet string	1123	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
986	return decode_str (dec, 0);	1124	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
987	case 3: // utf-8 string	1125	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
988	return decode_str (dec, 1);	1126
989	case 4: // array	1127	case MAJOR_MISC >> MAJOR_SHIFT:
990	return decode_av (dec);
991	case 5: // map
992	return decode_hv (dec);
993	case 6: // tag
994	return decode_tagged (dec);
995	case 7: // misc
996	switch (*dec->cur++ & 31)	1128	switch (*dec->cur++ & MINOR_MASK)
997	{	1129	{
998	case 20:	1130	case SIMPLE_FALSE:
999	#if CBOR_SLOW	1131	#if CBOR_SLOW
1000	types_false = get_bool ("Types::Serialiser::false");	1132	types_false = get_bool ("Types::Serialiser::false");
1001	#endif	1133	#endif
1002	return newSVsv (types_false);	1134	return newSVsv (types_false);
1003	case 21:	1135	case SIMPLE_TRUE:
1004	#if CBOR_SLOW	1136	#if CBOR_SLOW
1005	types_true = get_bool ("Types::Serialiser::true");	1137	types_true = get_bool ("Types::Serialiser::true");
1006	#endif	1138	#endif
1007	return newSVsv (types_true);	1139	return newSVsv (types_true);
1008	case 22:	1140	case SIMPLE_NULL:
1009	return newSVsv (&PL_sv_undef);	1141	return newSVsv (&PL_sv_undef);
1010	case 23:	1142	case SIMPLE_UNDEF:
1011	#if CBOR_SLOW	1143	#if CBOR_SLOW
1012	types_error = get_bool ("Types::Serialiser::error");	1144	types_error = get_bool ("Types::Serialiser::error");
1013	#endif	1145	#endif
1014	return newSVsv (types_error);	1146	return newSVsv (types_error);
1015		1147
1016	case 25:	1148	case MISC_FLOAT16:
1017	{	1149	{
1018	WANT (2);	1150	WANT (2);
1019		1151
1020	uint16_t fp = (dec->cur[0] << 8) \| dec->cur[1];	1152	uint16_t fp = (dec->cur[0] << 8) \| dec->cur[1];
1021	dec->cur += 2;	1153	dec->cur += 2;
1022		1154
1023	return newSVnv (ecb_binary16_to_float (fp));	1155	return newSVnv (ecb_binary16_to_float (fp));
1024	}	1156	}
1025		1157
1026	case 26:	1158	case MISC_FLOAT32:
1027	{	1159	{
1028	uint32_t fp;	1160	uint32_t fp;
1029	WANT (4);	1161	WANT (4);
1030	memcpy (&fp, dec->cur, 4);	1162	memcpy (&fp, dec->cur, 4);
1031	dec->cur += 4;	1163	dec->cur += 4;
…		…
1034	fp = ecb_bswap32 (fp);	1166	fp = ecb_bswap32 (fp);
1035		1167
1036	return newSVnv (ecb_binary32_to_float (fp));	1168	return newSVnv (ecb_binary32_to_float (fp));
1037	}	1169	}
1038		1170
1039	case 27:	1171	case MISC_FLOAT64:
1040	{	1172	{
1041	uint64_t fp;	1173	uint64_t fp;
1042	WANT (8);	1174	WANT (8);
1043	memcpy (&fp, dec->cur, 8);	1175	memcpy (&fp, dec->cur, 8);
1044	dec->cur += 8;	1176	dec->cur += 8;
…		…
1047	fp = ecb_bswap64 (fp);	1179	fp = ecb_bswap64 (fp);
1048		1180
1049	return newSVnv (ecb_binary64_to_double (fp));	1181	return newSVnv (ecb_binary64_to_double (fp));
1050	}	1182	}
1051		1183
1052	// 0..19 unassigned	1184	// 0..19 unassigned simple
1053	// 24 reserved + unassigned (reserved values are not encodable)	1185	// 24 reserved + unassigned simple (reserved values are not encodable)
		1186	// 28-30 unassigned misc
		1187	// 31 break code
1054	default:	1188	default:
1055	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1189	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1056	}	1190	}
1057		1191
1058	break;	1192	break;
1059	}	1193	}
1060		1194
…		…
1063	}	1197	}
1064		1198
1065	static SV *	1199	static SV *
1066	decode_cbor (SV string, CBOR cbor, char **offset_return)	1200	decode_cbor (SV string, CBOR cbor, char **offset_return)
1067	{	1201	{
1068	dec_t dec = { };	1202	dec_t dec = { 0 };
1069	SV *sv;	1203	SV *sv;
1070	STRLEN len;	1204	STRLEN len;
1071	char *data = SvPVbyte (string, len);	1205	char *data = SvPVbyte (string, len);
1072		1206
1073	if (len > cbor->max_size && cbor->max_size)	1207	if (len > cbor->max_size && cbor->max_size)
…		…
1087	if (dec.cur != dec.end && !dec.err)	1221	if (dec.cur != dec.end && !dec.err)
1088	dec.err = "garbage after CBOR object";	1222	dec.err = "garbage after CBOR object";
1089		1223
1090	if (dec.err)	1224	if (dec.err)
1091	{	1225	{
		1226	if (dec.shareable)
		1227	{
		1228	// need to break cyclic links, which whould all be in shareable
		1229	int i;
		1230	SV **svp;
		1231
		1232	for (i = av_len (dec.shareable) + 1; i--; )
		1233	if ((svp = av_fetch (dec.shareable, i, 0)))
		1234	sv_setsv (*svp, &PL_sv_undef);
		1235	}
		1236
1092	SvREFCNT_dec (sv);	1237	SvREFCNT_dec (sv);
1093	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 )data, (int)(uint8_t)dec.cur);	1238	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 )data, (int)(uint8_t)dec.cur);
1094	}	1239	}
1095		1240
1096	sv = sv_2mortal (sv);	1241	sv = sv_2mortal (sv);
1097		1242
1098	return sv;	1243	return sv;
1099	}	1244	}
1100		1245
		1246	/////////////////////////////////////////////////////////////////////////////
		1247	// incremental parser
		1248
		1249	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1250
		1251	// returns 0 for notyet, 1 for success or error
		1252	static int
		1253	incr_parse (CBOR self, SV cborstr)
		1254	{
		1255	STRLEN cur;
		1256	SvPV (cborstr, cur);
		1257
		1258	while (ecb_expect_true (self->incr_need <= cur))
		1259	{
		1260	// table of integer count bytes
		1261	static I8 incr_len[MINOR_MASK + 1] = {
		1262	0, 0, 0, 0, 0, 0, 0, 0,
		1263	0, 0, 0, 0, 0, 0, 0, 0,
		1264	0, 0, 0, 0, 0, 0, 0, 0,
		1265	1, 2, 4, 8,-1,-1,-1,-2
		1266	};
		1267
		1268	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1269	U8 m = *p & MINOR_MASK;
		1270	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1271	I8 ilen = incr_len[m];
		1272
		1273	self->incr_need = self->incr_pos + 1;
		1274
		1275	if (ecb_expect_false (ilen < 0))
		1276	{
		1277	if (m != MINOR_INDEF)
		1278	return 1; // error
		1279
		1280	if (*p == (MAJOR_MISC \| MINOR_INDEF))
		1281	{
		1282	if (count >= 0)
		1283	return 1; // error
		1284
		1285	count = 1;
		1286	}
		1287	else
		1288	{
		1289	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1290	count = -1;
		1291	}
		1292	}
		1293	else
		1294	{
		1295	self->incr_need += ilen;
		1296	if (ecb_expect_false (self->incr_need > cur))
		1297	return 0;
		1298
		1299	int major = *p >> MAJOR_SHIFT;
		1300
		1301	switch (major)
		1302	{
		1303	case MAJOR_TAG >> MAJOR_SHIFT:
		1304	++count; // tags merely prefix another value
		1305	break;
		1306
		1307	case MAJOR_BYTES >> MAJOR_SHIFT:
		1308	case MAJOR_TEXT >> MAJOR_SHIFT:
		1309	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1310	case MAJOR_MAP >> MAJOR_SHIFT:
		1311	{
		1312	UV len;
		1313
		1314	if (ecb_expect_false (ilen))
		1315	{
		1316	len = 0;
		1317
		1318	do {
		1319	len = (len << 8) \| *++p;
		1320	} while (--ilen);
		1321	}
		1322	else
		1323	len = m;
		1324
		1325	switch (major)
		1326	{
		1327	case MAJOR_BYTES >> MAJOR_SHIFT:
		1328	case MAJOR_TEXT >> MAJOR_SHIFT:
		1329	self->incr_need += len;
		1330	if (ecb_expect_false (self->incr_need > cur))
		1331	return 0;
		1332
		1333	break;
		1334
		1335	case MAJOR_MAP >> MAJOR_SHIFT:
		1336	len <<= 1;
		1337	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1338	if (len)
		1339	{
		1340	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1341	count = len + 1;
		1342	}
		1343	break;
		1344	}
		1345	}
		1346	}
		1347	}
		1348
		1349	self->incr_pos = self->incr_need;
		1350
		1351	if (count > 0)
		1352	{
		1353	while (!--count)
		1354	{
		1355	if (!AvFILLp (self->incr_count))
		1356	return 1; // done
		1357
		1358	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1359	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1360	}
		1361
		1362	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1363	}
		1364	}
		1365
		1366	return 0;
		1367	}
		1368
		1369
1101	/////////////////////////////////////////////////////////////////////////////	1370	/////////////////////////////////////////////////////////////////////////////
1102	// XS interface functions	1371	// XS interface functions
1103		1372
1104	MODULE = CBOR::XS PACKAGE = CBOR::XS	1373	MODULE = CBOR::XS PACKAGE = CBOR::XS
1105		1374
…		…
1145	void shrink (CBOR *self, int enable = 1)	1414	void shrink (CBOR *self, int enable = 1)
1146	ALIAS:	1415	ALIAS:
1147	shrink = F_SHRINK	1416	shrink = F_SHRINK
1148	allow_unknown = F_ALLOW_UNKNOWN	1417	allow_unknown = F_ALLOW_UNKNOWN
1149	allow_sharing = F_ALLOW_SHARING	1418	allow_sharing = F_ALLOW_SHARING
		1419	allow_cycles = F_ALLOW_CYCLES
1150	pack_strings = F_PACK_STRINGS	1420	pack_strings = F_PACK_STRINGS
		1421	utf8_strings = F_UTF8_STRINGS
		1422	validate_utf8 = F_VALIDATE_UTF8
1151	PPCODE:	1423	PPCODE:
1152	{	1424	{
1153	if (enable)	1425	if (enable)
1154	self->flags \|= ix;	1426	self->flags \|= ix;
1155	else	1427	else
…		…
1161	void get_shrink (CBOR *self)	1433	void get_shrink (CBOR *self)
1162	ALIAS:	1434	ALIAS:
1163	get_shrink = F_SHRINK	1435	get_shrink = F_SHRINK
1164	get_allow_unknown = F_ALLOW_UNKNOWN	1436	get_allow_unknown = F_ALLOW_UNKNOWN
1165	get_allow_sharing = F_ALLOW_SHARING	1437	get_allow_sharing = F_ALLOW_SHARING
		1438	get_allow_cycles = F_ALLOW_CYCLES
1166	get_pack_strings = F_PACK_STRINGS	1439	get_pack_strings = F_PACK_STRINGS
		1440	get_validate_utf8 = F_VALIDATE_UTF8
1167	PPCODE:	1441	PPCODE:
1168	XPUSHs (boolSV (self->flags & ix));	1442	XPUSHs (boolSV (self->flags & ix));
1169		1443
1170	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1444	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1171	PPCODE:	1445	PPCODE:
…		…
1220	EXTEND (SP, 2);	1494	EXTEND (SP, 2);
1221	PUSHs (sv);	1495	PUSHs (sv);
1222	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1496	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1223	}	1497	}
1224		1498
		1499	void incr_parse (CBOR self, SV cborstr)
		1500	ALIAS:
		1501	incr_parse_multiple = 1
		1502	PPCODE:
		1503	{
		1504	if (SvUTF8 (cborstr))
		1505	sv_utf8_downgrade (cborstr, 0);
		1506
		1507	if (!self->incr_count)
		1508	{
		1509	self->incr_count = newAV ();
		1510	self->incr_pos = 0;
		1511	self->incr_need = 1;
		1512
		1513	av_push (self->incr_count, newSViv (1));
		1514	}
		1515
		1516	do
		1517	{
		1518	if (!incr_parse (self, cborstr))
		1519	{
		1520	if (self->incr_need > self->max_size && self->max_size)
		1521	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1522	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1523
		1524	break;
		1525	}
		1526
		1527	SV *sv;
		1528	char *offset;
		1529
		1530	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1531	XPUSHs (sv);
		1532
		1533	sv_chop (cborstr, offset);
		1534
		1535	av_clear (self->incr_count);
		1536	av_push (self->incr_count, newSViv (1));
		1537
		1538	self->incr_pos = 0;
		1539	self->incr_need = self->incr_pos + 1;
		1540	}
		1541	while (ix);
		1542	}
		1543
		1544	void incr_reset (CBOR *self)
		1545	CODE:
		1546	{
		1547	SvREFCNT_dec (self->incr_count);
		1548	self->incr_count = 0;
		1549	}
		1550
1225	void DESTROY (CBOR *self)	1551	void DESTROY (CBOR *self)
1226	PPCODE:	1552	PPCODE:
1227	cbor_free (self);	1553	cbor_free (self);
1228		1554
1229	PROTOTYPES: ENABLE	1555	PROTOTYPES: ENABLE
1230		1556
1231	void encode_cbor (SV *scalar)	1557	void encode_cbor (SV *scalar)
		1558	ALIAS:
		1559	encode_cbor = 0
		1560	encode_cbor_sharing = F_ALLOW_SHARING
1232	PPCODE:	1561	PPCODE:
1233	{	1562	{
1234	CBOR cbor;	1563	CBOR cbor;
1235	cbor_init (&cbor);	1564	cbor_init (&cbor);
		1565	cbor.flags \|= ix;
1236	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1566	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1237	XPUSHs (scalar);	1567	XPUSHs (scalar);
1238	}	1568	}
1239		1569
1240	void decode_cbor (SV *cborstr)	1570	void decode_cbor (SV *cborstr)

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Comparing CBOR-XS/XS.xs (file contents): Revision 1.32 by root, Thu Nov 28 12:08:07 2013 UTC vs. Revision 1.52 by root, Sun Apr 24 19:31:55 2016 UTC

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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.32 by root, Thu Nov 28 12:08:07 2013 UTC vs.
Revision 1.52 by root, Sun Apr 24 19:31:55 2016 UTC