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

Comparing CBOR-XS/XS.xs (file contents):
Revision 1.31 by root, Thu Nov 28 11:43:26 2013 UTC vs.
Revision 1.57 by root, Fri Nov 25 12:16:12 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 //TODO	102	#define F_ALLOW_SHARING 0x00000004UL
65	#define F_ALLOW_STRINGREF 0x00000008UL //TODO	103	#define F_ALLOW_CYCLES 0x00000008UL
		104	#define F_PACK_STRINGS 0x00000010UL
		105	#define F_TEXT_KEYS 0x00000020UL
		106	#define F_TEXT_STRINGS 0x00000040UL
		107	#define F_VALIDATE_UTF8 0x00000080UL
66		108
67	#define INIT_SIZE 32 // initial scalar size to be allocated	109	#define INIT_SIZE 32 // initial scalar size to be allocated
68		110
69	#define SB do {	111	#define SB do {
70	#define SE } while (0)	112	#define SE } while (0)
…		…
89	typedef struct {	131	typedef struct {
90	U32 flags;	132	U32 flags;
91	U32 max_depth;	133	U32 max_depth;
92	STRLEN max_size;	134	STRLEN max_size;
93	SV *filter;	135	SV *filter;
		136
		137	// for the incremental parser
		138	STRLEN incr_pos; // the current offset into the text
		139	STRLEN incr_need; // minimum bytes needed to decode
		140	AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef.
94	} CBOR;	141	} CBOR;
95		142
96	ecb_inline void	143	ecb_inline void
97	cbor_init (CBOR *cbor)	144	cbor_init (CBOR *cbor)
98	{	145	{
…		…
102		149
103	ecb_inline void	150	ecb_inline void
104	cbor_free (CBOR *cbor)	151	cbor_free (CBOR *cbor)
105	{	152	{
106	SvREFCNT_dec (cbor->filter);	153	SvREFCNT_dec (cbor->filter);
		154	SvREFCNT_dec (cbor->incr_count);
107	}	155	}
108		156
109	/////////////////////////////////////////////////////////////////////////////	157	/////////////////////////////////////////////////////////////////////////////
110	// utility functions	158	// utility functions
111		159
…		…
189	static void	237	static void
190	encode_uint (enc_t *enc, int major, UV len)	238	encode_uint (enc_t *enc, int major, UV len)
191	{	239	{
192	need (enc, 9);	240	need (enc, 9);
193		241
194	if (ecb_expect_true (len < 24))	242	if (ecb_expect_true (len < LENGTH_EXT1))
195	*enc->cur++ = major \| len;	243	*enc->cur++ = major \| len;
196	else if (ecb_expect_true (len <= 0xff))	244	else if (ecb_expect_true (len <= 0xffU))
197	{	245	{
198	*enc->cur++ = major \| 24;	246	*enc->cur++ = major \| LENGTH_EXT1;
199	*enc->cur++ = len;	247	*enc->cur++ = len;
200	}	248	}
201	else if (len <= 0xffff)	249	else if (len <= 0xffffU)
202	{	250	{
203	*enc->cur++ = major \| 25;	251	*enc->cur++ = major \| LENGTH_EXT2;
204	*enc->cur++ = len >> 8;	252	*enc->cur++ = len >> 8;
205	*enc->cur++ = len;	253	*enc->cur++ = len;
206	}	254	}
207	else if (len <= 0xffffffff)	255	else if (len <= 0xffffffffU)
208	{	256	{
209	*enc->cur++ = major \| 26;	257	*enc->cur++ = major \| LENGTH_EXT4;
210	*enc->cur++ = len >> 24;	258	*enc->cur++ = len >> 24;
211	*enc->cur++ = len >> 16;	259	*enc->cur++ = len >> 16;
212	*enc->cur++ = len >> 8;	260	*enc->cur++ = len >> 8;
213	*enc->cur++ = len;	261	*enc->cur++ = len;
214	}	262	}
215	else	263	else
216	{	264	{
217	*enc->cur++ = major \| 27;	265	*enc->cur++ = major \| LENGTH_EXT8;
218	*enc->cur++ = len >> 56;	266	*enc->cur++ = len >> 56;
219	*enc->cur++ = len >> 48;	267	*enc->cur++ = len >> 48;
220	*enc->cur++ = len >> 40;	268	*enc->cur++ = len >> 40;
221	*enc->cur++ = len >> 32;	269	*enc->cur++ = len >> 32;
222	*enc->cur++ = len >> 24;	270	*enc->cur++ = len >> 24;
…		…
227	}	275	}
228		276
229	ecb_inline void	277	ecb_inline void
230	encode_tag (enc_t *enc, UV tag)	278	encode_tag (enc_t *enc, UV tag)
231	{	279	{
232	encode_uint (enc, 0xc0, tag);	280	encode_uint (enc, MAJOR_TAG, tag);
		281	}
		282
		283	// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded
		284	ecb_noinline static void
		285	encode_str_utf8 (enc_t enc, int utf8, char str, STRLEN len)
		286	{
		287	STRLEN ulen = len;
		288	U8 p, pend = (U8 *)str + len;
		289
		290	for (p = (U8 *)str; p < pend; ++p)
		291	ulen += *p >> 7; // count set high bits
		292
		293	encode_uint (enc, MAJOR_TEXT, ulen);
		294
		295	need (enc, ulen);
		296	for (p = (U8 *)str; p < pend; ++p)
		297	if (*p < 0x80)
		298	enc->cur++ = p;
		299	else
		300	{
		301	enc->cur++ = 0xc0 + (p >> 6);
		302	enc->cur++ = 0x80 + (p & 63);
		303	}
233	}	304	}
234		305
235	ecb_inline void	306	ecb_inline void
236	encode_str (enc_t enc, int utf8, char str, STRLEN len)	307	encode_str (enc_t enc, int upgrade_utf8, int utf8, char str, STRLEN len)
237	{	308	{
238	encode_uint (enc, utf8 ? 0x60 : 0x40, len);	309	if (ecb_expect_false (upgrade_utf8))
		310	if (!utf8)
		311	{
		312	encode_str_utf8 (enc, utf8, str, len);
		313	return;
		314	}
		315
		316	encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len);
239	need (enc, len);	317	need (enc, len);
240	memcpy (enc->cur, str, len);	318	memcpy (enc->cur, str, len);
241	enc->cur += len;	319	enc->cur += len;
242	}	320	}
243		321
244	static void	322	ecb_inline void
245	encode_strref (enc_t enc, int utf8, char str, STRLEN len)	323	encode_strref (enc_t enc, int upgrade_utf8, int utf8, char str, STRLEN len)
246	{	324	{
247	if (ecb_expect_false (enc->cbor.flags & F_ALLOW_STRINGREF))	325	if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS))
248	{	326	{
249	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);	327	SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1);
250		328
251	if (SvOK (*svp))	329	if (SvOK (*svp))
252	{	330	{
253	// already registered, use stringref	331	// already registered, use stringref
254	encode_tag (enc, CBOR_TAG_STRINGREF);	332	encode_tag (enc, CBOR_TAG_STRINGREF);
255	encode_uint (enc, 0x00, SvUV (*svp));	333	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
256	return;	334	return;
257	}	335	}
258	else if (len >= minimum_string_length (enc->stringref_idx))	336	else if (len >= minimum_string_length (enc->stringref_idx))
259	{	337	{
260	// register only	338	// register only
261	sv_setuv (*svp, enc->stringref_idx);	339	sv_setuv (*svp, enc->stringref_idx);
262	++enc->stringref_idx;	340	++enc->stringref_idx;
263	}	341	}
264	}	342	}
265		343
266	encode_str (enc, utf8, str, len);	344	encode_str (enc, upgrade_utf8, utf8, str, len);
267	}	345	}
268		346
269	static void encode_sv (enc_t enc, SV sv);	347	static void encode_sv (enc_t enc, SV sv);
270		348
271	static void	349	static void
…		…
276	if (enc->depth >= enc->cbor.max_depth)	354	if (enc->depth >= enc->cbor.max_depth)
277	croak (ERR_NESTING_EXCEEDED);	355	croak (ERR_NESTING_EXCEEDED);
278		356
279	++enc->depth;	357	++enc->depth;
280		358
281	encode_uint (enc, 0x80, len + 1);	359	encode_uint (enc, MAJOR_ARRAY, len + 1);
282		360
		361	if (SvMAGICAL (av))
283	for (i = 0; i <= len; ++i)	362	for (i = 0; i <= len; ++i)
284	{	363	{
285	SV **svp = av_fetch (av, i, 0);	364	SV **svp = av_fetch (av, i, 0);
286	encode_sv (enc, svp ? *svp : &PL_sv_undef);	365	encode_sv (enc, svp ? *svp : &PL_sv_undef);
287	}	366	}
		367	else
		368	for (i = 0; i <= len; ++i)
		369	{
		370	SV *sv = AvARRAY (av)[i];
		371	encode_sv (enc, sv ? sv : &PL_sv_undef);
		372	}
288		373
289	--enc->depth;	374	--enc->depth;
290	}	375	}
291		376
292	static void	377	static void
…		…
301		386
302	int pairs = hv_iterinit (hv);	387	int pairs = hv_iterinit (hv);
303	int mg = SvMAGICAL (hv);	388	int mg = SvMAGICAL (hv);
304		389
305	if (mg)	390	if (mg)
306	encode_ch (enc, 0xa0 \| 31);	391	encode_ch (enc, MAJOR_MAP \| MINOR_INDEF);
307	else	392	else
308	encode_uint (enc, 0xa0, pairs);	393	encode_uint (enc, MAJOR_MAP, pairs);
309		394
310	while ((he = hv_iternext (hv)))	395	while ((he = hv_iternext (hv)))
311	{	396	{
312	if (HeKLEN (he) == HEf_SVKEY)	397	if (HeKLEN (he) == HEf_SVKEY)
313	encode_sv (enc, HeSVKEY (he));	398	encode_sv (enc, HeSVKEY (he));
314	else	399	else
315	encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he));	400	encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS \| F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he));
316		401
317	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));	402	encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he));
318	}	403	}
319		404
320	if (mg)	405	if (mg)
321	encode_ch (enc, 0xe0 \| 31);	406	encode_ch (enc, MAJOR_MISC \| MINOR_INDEF);
322		407
323	--enc->depth;	408	--enc->depth;
324	}	409	}
325		410
326	// encode objects, arrays and special \0=false and \1=true values.	411	// encode objects, arrays and special \0=false and \1=true values.
327	static void	412	static void
328	encode_rv (enc_t enc, SV sv)	413	encode_rv (enc_t enc, SV sv)
329	{	414	{
330	SvGETMAGIC (sv);	415	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		416
354	svtype svt = SvTYPE (sv);	417	svtype svt = SvTYPE (sv);
355		418
356	if (ecb_expect_false (SvOBJECT (sv)))	419	if (ecb_expect_false (SvOBJECT (sv)))
357	{	420	{
…		…
364	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash	427	HV *tagged_stash = !CBOR_SLOW \|\| cbor_tagged_stash
365	? cbor_tagged_stash	428	? cbor_tagged_stash
366	: gv_stashpv ("CBOR::XS::Tagged" , 1);	429	: gv_stashpv ("CBOR::XS::Tagged" , 1);
367		430
368	HV *stash = SvSTASH (sv);	431	HV *stash = SvSTASH (sv);
369	GV *method;
370		432
371	if (stash == boolean_stash)	433	if (stash == boolean_stash)
372	encode_ch (enc, SvIV (sv) ? 0xe0 \| 21 : 0xe0 \| 20);	434	{
		435	encode_ch (enc, SvIV (sv) ? MAJOR_MISC \| SIMPLE_TRUE : MAJOR_MISC \| SIMPLE_FALSE);
		436	return;
		437	}
373	else if (stash == error_stash)	438	else if (stash == error_stash)
374	encode_ch (enc, 0xe0 \| 23);	439	{
		440	encode_ch (enc, MAJOR_MISC \| SIMPLE_UNDEF);
		441	return;
		442	}
375	else if (stash == tagged_stash)	443	else if (stash == tagged_stash)
376	{	444	{
377	if (svt != SVt_PVAV)	445	if (svt != SVt_PVAV)
378	croak ("encountered CBOR::XS::Tagged object that isn't an array");	446	croak ("encountered CBOR::XS::Tagged object that isn't an array");
379		447
380	encode_uint (enc, 0xc0, SvUV (av_fetch ((AV )sv, 0, 1)));	448	encode_uint (enc, MAJOR_TAG, SvUV (av_fetch ((AV )sv, 0, 1)));
381	encode_sv (enc, av_fetch ((AV )sv, 1, 1));	449	encode_sv (enc, av_fetch ((AV )sv, 1, 1));
		450
		451	return;
		452	}
		453	}
		454
		455	if (ecb_expect_false (SvREFCNT (sv) > 1)
		456	&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING))
		457	{
		458	if (!enc->shareable)
		459	enc->shareable = (HV )sv_2mortal ((SV )newHV ());
		460
		461	SV *svp = hv_fetch (enc->shareable, (char )&sv, sizeof (sv), 1);
		462
		463	if (SvOK (*svp))
382	}	464	{
		465	encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF);
		466	encode_uint (enc, MAJOR_POS_INT, SvUV (*svp));
		467	return;
		468	}
		469	else
		470	{
		471	sv_setuv (*svp, enc->shareable_idx);
		472	++enc->shareable_idx;
		473	encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE);
		474	}
		475	}
		476
		477	if (ecb_expect_false (SvOBJECT (sv)))
		478	{
		479	HV *stash = SvSTASH (sv);
		480	GV *method;
		481
383	else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))	482	if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0)))
384	{	483	{
385	dSP;	484	dSP;
386		485
387	ENTER; SAVETMPS; PUSHMARK (SP);	486	ENTER; SAVETMPS;
		487	PUSHMARK (SP);
388	// we re-bless the reference to get overload and other niceties right	488	// we re-bless the reference to get overload and other niceties right
389	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	489	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
390		490
391	PUTBACK;	491	PUTBACK;
392	// G_SCALAR ensures that return value is 1	492	// G_SCALAR ensures that return value is 1
…		…
405	}	505	}
406	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)	506	else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0)
407	{	507	{
408	dSP;	508	dSP;
409		509
410	ENTER; SAVETMPS; PUSHMARK (SP);	510	ENTER; SAVETMPS;
		511	SAVESTACK_POS ();
		512	PUSHMARK (SP);
411	EXTEND (SP, 2);	513	EXTEND (SP, 2);
412	// we re-bless the reference to get overload and other niceties right	514	// we re-bless the reference to get overload and other niceties right
413	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));	515	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
414	PUSHs (sv_cbor);	516	PUSHs (sv_cbor);
415		517
…		…
420	// catch this surprisingly common error	522	// catch this surprisingly common error
421	if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv)	523	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));	524	croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash));
423		525
424	encode_tag (enc, CBOR_TAG_PERL_OBJECT);	526	encode_tag (enc, CBOR_TAG_PERL_OBJECT);
425	encode_uint (enc, 0x80, count + 1);	527	encode_uint (enc, MAJOR_ARRAY, count + 1);
426	encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));	528	encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash));
427		529
428	while (count)	530	while (count)
429	encode_sv (enc, SP[1 - count--]);	531	encode_sv (enc, SP[1 - count--]);
430		532
431	PUTBACK;	533	PUTBACK;
…		…
452	{	554	{
453	double nv = SvNVX (sv);	555	double nv = SvNVX (sv);
454		556
455	need (enc, 9);	557	need (enc, 9);
456		558
457	if (ecb_expect_false (nv == (U32)nv))	559	if (ecb_expect_false (nv == (NV)(U32)nv))
458	encode_uint (enc, 0x00, (U32)nv);	560	encode_uint (enc, MAJOR_POS_INT, (U32)nv);
459	//TODO: maybe I32?	561	//TODO: maybe I32?
460	else if (ecb_expect_false (nv == (float)nv))	562	else if (ecb_expect_false (nv == (float)nv))
461	{	563	{
462	uint32_t fp = ecb_float_to_binary32 (nv);	564	uint32_t fp = ecb_float_to_binary32 (nv);
463		565
464	*enc->cur++ = 0xe0 \| 26;	566	*enc->cur++ = MAJOR_MISC \| MISC_FLOAT32;
465		567
466	if (!ecb_big_endian ())	568	if (!ecb_big_endian ())
467	fp = ecb_bswap32 (fp);	569	fp = ecb_bswap32 (fp);
468		570
469	memcpy (enc->cur, &fp, 4);	571	memcpy (enc->cur, &fp, 4);
…		…
471	}	573	}
472	else	574	else
473	{	575	{
474	uint64_t fp = ecb_double_to_binary64 (nv);	576	uint64_t fp = ecb_double_to_binary64 (nv);
475		577
476	*enc->cur++ = 0xe0 \| 27;	578	*enc->cur++ = MAJOR_MISC \| MISC_FLOAT64;
477		579
478	if (!ecb_big_endian ())	580	if (!ecb_big_endian ())
479	fp = ecb_bswap64 (fp);	581	fp = ecb_bswap64 (fp);
480		582
481	memcpy (enc->cur, &fp, 8);	583	memcpy (enc->cur, &fp, 8);
…		…
490		592
491	if (SvPOKp (sv))	593	if (SvPOKp (sv))
492	{	594	{
493	STRLEN len;	595	STRLEN len;
494	char *str = SvPV (sv, len);	596	char *str = SvPV (sv, len);
495	encode_strref (enc, SvUTF8 (sv), str, len);	597	encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len);
496	}	598	}
497	else if (SvNOKp (sv))	599	else if (SvNOKp (sv))
498	encode_nv (enc, sv);	600	encode_nv (enc, sv);
499	else if (SvIOKp (sv))	601	else if (SvIOKp (sv))
500	{	602	{
501	if (SvIsUV (sv))	603	if (SvIsUV (sv))
502	encode_uint (enc, 0x00, SvUVX (sv));	604	encode_uint (enc, MAJOR_POS_INT, SvUVX (sv));
503	else if (SvIVX (sv) >= 0)	605	else if (SvIVX (sv) >= 0)
504	encode_uint (enc, 0x00, SvIVX (sv));	606	encode_uint (enc, MAJOR_POS_INT, SvIVX (sv));
505	else	607	else
506	encode_uint (enc, 0x20, -(SvIVX (sv) + 1));	608	encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1));
507	}	609	}
508	else if (SvROK (sv))	610	else if (SvROK (sv))
509	encode_rv (enc, SvRV (sv));	611	encode_rv (enc, SvRV (sv));
510	else if (!SvOK (sv))	612	else if (!SvOK (sv))
511	encode_ch (enc, 0xe0 \| 22);	613	encode_ch (enc, MAJOR_MISC \| SIMPLE_NULL);
512	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)	614	else if (enc->cbor.flags & F_ALLOW_UNKNOWN)
513	encode_ch (enc, 0xe0 \| 23);	615	encode_ch (enc, MAJOR_MISC \| SIMPLE_UNDEF);
514	else	616	else
515	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",	617	croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data",
516	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));	618	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
517	}	619	}
518		620
519	static SV *	621	static SV *
520	encode_cbor (SV scalar, CBOR cbor)	622	encode_cbor (SV scalar, CBOR cbor)
521	{	623	{
522	enc_t enc = { };	624	enc_t enc = { 0 };
523		625
524	enc.cbor = *cbor;	626	enc.cbor = *cbor;
525	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	627	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
526	enc.cur = SvPVX (enc.sv);	628	enc.cur = SvPVX (enc.sv);
527	enc.end = SvEND (enc.sv);	629	enc.end = SvEND (enc.sv);
528		630
529	SvPOK_only (enc.sv);	631	SvPOK_only (enc.sv);
530		632
531	if (cbor->flags & F_ALLOW_STRINGREF)	633	if (cbor->flags & F_PACK_STRINGS)
532	{	634	{
533	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);	635	encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE);
534	enc.stringref[0]= (HV )sv_2mortal ((SV )newHV ());	636	enc.stringref[0]= (HV )sv_2mortal ((SV )newHV ());
535	enc.stringref[1]= (HV )sv_2mortal ((SV )newHV ());	637	enc.stringref[1]= (HV )sv_2mortal ((SV )newHV ());
536	}	638	}
…		…
563	SV *decode_tagged;	665	SV *decode_tagged;
564	} dec_t;	666	} dec_t;
565		667
566	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE	668	#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE
567		669
568	#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data")	670	#define WANT(len) if (ecb_expect_false ((UV)(dec->end - dec->cur) < (UV)len)) ERR ("unexpected end of CBOR data")
569		671
570	#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED)	672	#define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED)
571	#define DEC_DEC_DEPTH --dec->depth	673	#define DEC_DEC_DEPTH --dec->depth
572		674
573	static UV	675	static UV
574	decode_uint (dec_t *dec)	676	decode_uint (dec_t *dec)
575	{	677	{
576	switch (*dec->cur & 31)	678	U8 m = *dec->cur & MINOR_MASK;
577	{	679	++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		680
583	case 24:	681	if (ecb_expect_true (m < LENGTH_EXT1))
		682	return m;
		683	else if (ecb_expect_true (m == LENGTH_EXT1))
		684	{
584	WANT (2);	685	WANT (1);
585	dec->cur += 2;	686	dec->cur += 1;
586	return dec->cur[-1];	687	return dec->cur[-1];
587		688	}
588	case 25:	689	else if (ecb_expect_true (m == LENGTH_EXT2))
		690	{
589	WANT (3);	691	WANT (2);
590	dec->cur += 3;	692	dec->cur += 2;
591	return (((UV)dec->cur[-2]) << 8)	693	return (((UV)dec->cur[-2]) << 8)
592	\| ((UV)dec->cur[-1]);	694	\| ((UV)dec->cur[-1]);
593		695	}
594	case 26:	696	else if (ecb_expect_true (m == LENGTH_EXT4))
		697	{
595	WANT (5);	698	WANT (4);
596	dec->cur += 5;	699	dec->cur += 4;
597	return (((UV)dec->cur[-4]) << 24)	700	return (((UV)dec->cur[-4]) << 24)
598	\| (((UV)dec->cur[-3]) << 16)	701	\| (((UV)dec->cur[-3]) << 16)
599	\| (((UV)dec->cur[-2]) << 8)	702	\| (((UV)dec->cur[-2]) << 8)
600	\| ((UV)dec->cur[-1]);	703	\| ((UV)dec->cur[-1]);
601		704	}
602	case 27:	705	else if (ecb_expect_true (m == LENGTH_EXT8))
		706	{
603	WANT (9);	707	WANT (8);
604	dec->cur += 9;	708	dec->cur += 8;
		709
		710	return
		711	#if UVSIZE < 8
		712	0
		713	#else
605	return (((UV)dec->cur[-8]) << 56)	714	(((UV)dec->cur[-8]) << 56)
606	\| (((UV)dec->cur[-7]) << 48)	715	\| (((UV)dec->cur[-7]) << 48)
607	\| (((UV)dec->cur[-6]) << 40)	716	\| (((UV)dec->cur[-6]) << 40)
608	\| (((UV)dec->cur[-5]) << 32)	717	\| (((UV)dec->cur[-5]) << 32)
		718	#endif
609	\| (((UV)dec->cur[-4]) << 24)	719	\| (((UV)dec->cur[-4]) << 24)
610	\| (((UV)dec->cur[-3]) << 16)	720	\| (((UV)dec->cur[-3]) << 16)
611	\| (((UV)dec->cur[-2]) << 8)	721	\| (((UV)dec->cur[-2]) << 8)
612	\| ((UV)dec->cur[-1]);	722	\| ((UV)dec->cur[-1]);
613		723	}
614	default:	724	else
615	ERR ("corrupted CBOR data (unsupported integer minor encoding)");	725	ERR ("corrupted CBOR data (unsupported integer minor encoding)");
616	}
617		726
618	fail:	727	fail:
619	return 0;	728	return 0;
620	}	729	}
621		730
…		…
626	{	735	{
627	AV *av = newAV ();	736	AV *av = newAV ();
628		737
629	DEC_INC_DEPTH;	738	DEC_INC_DEPTH;
630		739
631	if ((*dec->cur & 31) == 31)	740	if (*dec->cur == (MAJOR_ARRAY \| MINOR_INDEF))
632	{	741	{
633	++dec->cur;	742	++dec->cur;
634		743
635	for (;;)	744	for (;;)
636	{	745	{
637	WANT (1);	746	WANT (1);
638		747
639	if (*dec->cur == (0xe0 \| 31))	748	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
640	{	749	{
641	++dec->cur;	750	++dec->cur;
642	break;	751	break;
643	}	752	}
644		753
645	av_push (av, decode_sv (dec));	754	av_push (av, decode_sv (dec));
646	}	755	}
647	}	756	}
648	else	757	else
649	{	758	{
650	int i, len = decode_uint (dec);	759	UV i, len = decode_uint (dec);
651		760
		761	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);	762	av_fill (av, len - 1);
653		763
654	for (i = 0; i < len; ++i)	764	for (i = 0; i < len; ++i)
655	AvARRAY (av)[i] = decode_sv (dec);	765	AvARRAY (av)[i] = decode_sv (dec);
656	}	766	}
…		…
669	{	779	{
670	// for speed reasons, we specialcase single-string	780	// for speed reasons, we specialcase single-string
671	// byte or utf-8 strings as keys, but only when !stringref	781	// byte or utf-8 strings as keys, but only when !stringref
672		782
673	if (ecb_expect_true (!dec->stringref))	783	if (ecb_expect_true (!dec->stringref))
674	if (dec->cur >= 0x40 && dec->cur <= 0x40 + 27)	784	if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8))
675	{	785	{
676	I32 len = decode_uint (dec);	786	STRLEN len = decode_uint (dec);
677	char key = (char )dec->cur;	787	char key = (char )dec->cur;
678		788
		789	WANT (len);
679	dec->cur += len;	790	dec->cur += len;
680		791
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);	792	hv_store (hv, key, len, decode_sv (dec), 0);
685		793
686	return;	794	return;
687	}	795	}
688	else if (dec->cur >= 0x60 && dec->cur <= 0x60 + 27)	796	else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8))
689	{	797	{
690	I32 len = decode_uint (dec);	798	STRLEN len = decode_uint (dec);
691	char key = (char )dec->cur;	799	char key = (char )dec->cur;
692		800
		801	WANT (len);
693	dec->cur += len;	802	dec->cur += len;
694		803
695	if (ecb_expect_false (dec->stringref))	804	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
696	av_push (dec->stringref, newSVpvn_utf8 (key, len, 1));	805	if (!is_utf8_string (key, len))
		806	ERR ("corrupted CBOR data (invalid UTF-8 in map key)");
697		807
698	hv_store (hv, key, -len, decode_sv (dec), 0);	808	hv_store (hv, key, -len, decode_sv (dec), 0);
699		809
700	return;	810	return;
701	}	811	}
…		…
703	SV *k = decode_sv (dec);	813	SV *k = decode_sv (dec);
704	SV *v = decode_sv (dec);	814	SV *v = decode_sv (dec);
705		815
706	hv_store_ent (hv, k, v, 0);	816	hv_store_ent (hv, k, v, 0);
707	SvREFCNT_dec (k);	817	SvREFCNT_dec (k);
		818
		819	fail:
		820	;
708	}	821	}
709		822
710	static SV *	823	static SV *
711	decode_hv (dec_t *dec)	824	decode_hv (dec_t *dec)
712	{	825	{
713	HV *hv = newHV ();	826	HV *hv = newHV ();
714		827
715	DEC_INC_DEPTH;	828	DEC_INC_DEPTH;
716		829
717	if ((*dec->cur & 31) == 31)	830	if (*dec->cur == (MAJOR_MAP \| MINOR_INDEF))
718	{	831	{
719	++dec->cur;	832	++dec->cur;
720		833
721	for (;;)	834	for (;;)
722	{	835	{
723	WANT (1);	836	WANT (1);
724		837
725	if (*dec->cur == (0xe0 \| 31))	838	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
726	{	839	{
727	++dec->cur;	840	++dec->cur;
728	break;	841	break;
729	}	842	}
730		843
731	decode_he (dec, hv);	844	decode_he (dec, hv);
732	}	845	}
733	}	846	}
734	else	847	else
735	{	848	{
736	int pairs = decode_uint (dec);	849	UV pairs = decode_uint (dec);
		850
		851	WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes
737		852
738	while (pairs--)	853	while (pairs--)
739	decode_he (dec, hv);	854	decode_he (dec, hv);
740	}	855	}
741		856
…		…
751	static SV *	866	static SV *
752	decode_str (dec_t *dec, int utf8)	867	decode_str (dec_t *dec, int utf8)
753	{	868	{
754	SV *sv = 0;	869	SV *sv = 0;
755		870
756	if ((*dec->cur & 31) == 31)	871	if ((*dec->cur & MINOR_MASK) == MINOR_INDEF)
757	{	872	{
		873	// indefinite length strings
758	++dec->cur;	874	++dec->cur;
759		875
		876	U8 major = *dec->cur & MAJOR_MISC;
		877
760	sv = newSVpvn ("", 0);	878	sv = newSVpvn ("", 0);
761		879
762	// not very fast, and certainly not robust against illegal input
763	for (;;)	880	for (;;)
764	{	881	{
765	WANT (1);	882	WANT (1);
766		883
767	if (*dec->cur == (0xe0 \| 31))	884	if ((*dec->cur - major) > LENGTH_EXT8)
		885	if (*dec->cur == (MAJOR_MISC \| MINOR_INDEF))
768	{	886	{
769	++dec->cur;	887	++dec->cur;
770	break;	888	break;
771	}	889	}
		890	else
		891	ERR ("corrupted CBOR data (invalid chunks in indefinite length string)");
772		892
773	sv_catsv (sv, decode_sv (dec));	893	STRLEN len = decode_uint (dec);
		894
		895	WANT (len);
		896	sv_catpvn (sv, dec->cur, len);
		897	dec->cur += len;
774	}	898	}
775	}	899	}
776	else	900	else
777	{	901	{
778	STRLEN len = decode_uint (dec);	902	STRLEN len = decode_uint (dec);
…		…
785	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))	909	&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1))
786	av_push (dec->stringref, SvREFCNT_inc_NN (sv));	910	av_push (dec->stringref, SvREFCNT_inc_NN (sv));
787	}	911	}
788		912
789	if (utf8)	913	if (utf8)
		914	{
		915	if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8))
		916	if (!is_utf8_string (SvPVX (sv), SvCUR (sv)))
		917	ERR ("corrupted CBOR data (invalid UTF-8 in text string)");
		918
790	SvUTF8_on (sv);	919	SvUTF8_on (sv);
		920	}
791		921
792	return sv;	922	return sv;
793		923
794	fail:	924	fail:
795	SvREFCNT_dec (sv);	925	SvREFCNT_dec (sv);
…		…
814	sv = newRV_noinc (decode_sv (dec));	944	sv = newRV_noinc (decode_sv (dec));
815	break;	945	break;
816		946
817	case CBOR_TAG_STRINGREF_NAMESPACE:	947	case CBOR_TAG_STRINGREF_NAMESPACE:
818	{	948	{
		949	// do nmot use SAVETMPS/FREETMPS, as these will
		950	// erase mortalised caches, e.g. "shareable"
819	ENTER; SAVETMPS;	951	ENTER;
820		952
821	SAVESPTR (dec->stringref);	953	SAVESPTR (dec->stringref);
822	dec->stringref = (AV )sv_2mortal ((SV )newAV ());	954	dec->stringref = (AV )sv_2mortal ((SV )newAV ());
823		955
824	sv = decode_sv (dec);	956	sv = decode_sv (dec);
825		957
826	FREETMPS; LEAVE;	958	LEAVE;
827	}	959	}
828	break;	960	break;
829		961
830	case CBOR_TAG_STRINGREF:	962	case CBOR_TAG_STRINGREF:
831	{	963	{
832	if ((*dec->cur >> 5) != 0)	964	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
833	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");	965	ERR ("corrupted CBOR data (stringref index not an unsigned integer)");
834		966
835	UV idx = decode_uint (dec);	967	UV idx = decode_uint (dec);
836		968
837	if (!dec->stringref \|\| (int)idx > AvFILLp (dec->stringref))	969	if (!dec->stringref \|\| (int)idx > AvFILLp (dec->stringref))
…		…
844	case CBOR_TAG_VALUE_SHAREABLE:	976	case CBOR_TAG_VALUE_SHAREABLE:
845	{	977	{
846	if (ecb_expect_false (!dec->shareable))	978	if (ecb_expect_false (!dec->shareable))
847	dec->shareable = (AV )sv_2mortal ((SV )newAV ());	979	dec->shareable = (AV )sv_2mortal ((SV )newAV ());
848		980
		981	if (dec->cbor.flags & F_ALLOW_CYCLES)
		982	{
849	sv = newSV (0);	983	sv = newSV (0);
850	av_push (dec->shareable, SvREFCNT_inc_NN (sv));	984	av_push (dec->shareable, SvREFCNT_inc_NN (sv));
851		985
852	SV *osv = decode_sv (dec);	986	SV *osv = decode_sv (dec);
853	sv_setsv (sv, osv);	987	sv_setsv (sv, osv);
854	SvREFCNT_dec_NN (osv);	988	SvREFCNT_dec_NN (osv);
		989	}
		990	else
		991	{
		992	av_push (dec->shareable, &PL_sv_undef);
		993	int idx = AvFILLp (dec->shareable);
		994	sv = decode_sv (dec);
		995	av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv));
		996	}
855	}	997	}
856	break;	998	break;
857		999
858	case CBOR_TAG_VALUE_SHAREDREF:	1000	case CBOR_TAG_VALUE_SHAREDREF:
859	{	1001	{
860	if ((*dec->cur >> 5) != 0)	1002	if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT))
861	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");	1003	ERR ("corrupted CBOR data (sharedref index not an unsigned integer)");
862		1004
863	UV idx = decode_uint (dec);	1005	UV idx = decode_uint (dec);
864		1006
865	if (!dec->shareable \|\| (int)idx > AvFILLp (dec->shareable))	1007	if (!dec->shareable \|\| (int)idx > AvFILLp (dec->shareable))
866	ERR ("corrupted CBOR data (sharedref index out of bounds)");	1008	ERR ("corrupted CBOR data (sharedref index out of bounds)");
867		1009
868	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);	1010	sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]);
		1011
		1012	if (sv == &PL_sv_undef)
		1013	ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled");
869	}	1014	}
870	break;	1015	break;
871		1016
872	case CBOR_TAG_PERL_OBJECT:	1017	case CBOR_TAG_PERL_OBJECT:
873	{	1018	{
…		…
888	if (!method)	1033	if (!method)
889	ERR ("cannot decode perl-object (package does not have a THAW method)");	1034	ERR ("cannot decode perl-object (package does not have a THAW method)");
890		1035
891	dSP;	1036	dSP;
892		1037
893	ENTER; SAVETMPS; PUSHMARK (SP);	1038	ENTER; SAVETMPS;
		1039	PUSHMARK (SP);
894	EXTEND (SP, len + 1);	1040	EXTEND (SP, len + 1);
895	// we re-bless the reference to get overload and other niceties right	1041	// we re-bless the reference to get overload and other niceties right
896	PUSHs (*av_fetch (av, 0, 1));	1042	PUSHs (*av_fetch (av, 0, 1));
897	PUSHs (sv_cbor);	1043	PUSHs (sv_cbor);
898		1044
…		…
923	default:	1069	default:
924	{	1070	{
925	sv = decode_sv (dec);	1071	sv = decode_sv (dec);
926		1072
927	dSP;	1073	dSP;
928	ENTER; SAVETMPS; PUSHMARK (SP);	1074	ENTER; SAVETMPS;
		1075	SAVESTACK_POS ();
		1076	PUSHMARK (SP);
929	EXTEND (SP, 2);	1077	EXTEND (SP, 2);
930	PUSHs (newSVuv (tag));	1078	PUSHs (newSVuv (tag));
931	PUSHs (sv);	1079	PUSHs (sv);
932		1080
933	PUTBACK;	1081	PUTBACK;
…		…
974	static SV *	1122	static SV *
975	decode_sv (dec_t *dec)	1123	decode_sv (dec_t *dec)
976	{	1124	{
977	WANT (1);	1125	WANT (1);
978		1126
979	switch (*dec->cur >> 5)	1127	switch (*dec->cur >> MAJOR_SHIFT)
980	{	1128	{
981	case 0: // unsigned int	1129	case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec));
982	return newSVuv (decode_uint (dec));	1130	case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec));
983	case 1: // negative int	1131	case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0);
984	return newSViv (-1 - (IV)decode_uint (dec));	1132	case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1);
985	case 2: // octet string	1133	case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec);
986	return decode_str (dec, 0);	1134	case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec);
987	case 3: // utf-8 string	1135	case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec);
988	return decode_str (dec, 1);	1136
989	case 4: // array	1137	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)	1138	switch (*dec->cur++ & MINOR_MASK)
997	{	1139	{
998	case 20:	1140	case SIMPLE_FALSE:
999	#if CBOR_SLOW	1141	#if CBOR_SLOW
1000	types_false = get_bool ("Types::Serialiser::false");	1142	types_false = get_bool ("Types::Serialiser::false");
1001	#endif	1143	#endif
1002	return newSVsv (types_false);	1144	return newSVsv (types_false);
1003	case 21:	1145	case SIMPLE_TRUE:
1004	#if CBOR_SLOW	1146	#if CBOR_SLOW
1005	types_true = get_bool ("Types::Serialiser::true");	1147	types_true = get_bool ("Types::Serialiser::true");
1006	#endif	1148	#endif
1007	return newSVsv (types_true);	1149	return newSVsv (types_true);
1008	case 22:	1150	case SIMPLE_NULL:
1009	return newSVsv (&PL_sv_undef);	1151	return newSVsv (&PL_sv_undef);
1010	case 23:	1152	case SIMPLE_UNDEF:
1011	#if CBOR_SLOW	1153	#if CBOR_SLOW
1012	types_error = get_bool ("Types::Serialiser::error");	1154	types_error = get_bool ("Types::Serialiser::error");
1013	#endif	1155	#endif
1014	return newSVsv (types_error);	1156	return newSVsv (types_error);
1015		1157
1016	case 25:	1158	case MISC_FLOAT16:
1017	{	1159	{
1018	WANT (2);	1160	WANT (2);
1019		1161
1020	uint16_t fp = (dec->cur[0] << 8) \| dec->cur[1];	1162	uint16_t fp = (dec->cur[0] << 8) \| dec->cur[1];
1021	dec->cur += 2;	1163	dec->cur += 2;
1022		1164
1023	return newSVnv (ecb_binary16_to_float (fp));	1165	return newSVnv (ecb_binary16_to_float (fp));
1024	}	1166	}
1025		1167
1026	case 26:	1168	case MISC_FLOAT32:
1027	{	1169	{
1028	uint32_t fp;	1170	uint32_t fp;
1029	WANT (4);	1171	WANT (4);
1030	memcpy (&fp, dec->cur, 4);	1172	memcpy (&fp, dec->cur, 4);
1031	dec->cur += 4;	1173	dec->cur += 4;
…		…
1034	fp = ecb_bswap32 (fp);	1176	fp = ecb_bswap32 (fp);
1035		1177
1036	return newSVnv (ecb_binary32_to_float (fp));	1178	return newSVnv (ecb_binary32_to_float (fp));
1037	}	1179	}
1038		1180
1039	case 27:	1181	case MISC_FLOAT64:
1040	{	1182	{
1041	uint64_t fp;	1183	uint64_t fp;
1042	WANT (8);	1184	WANT (8);
1043	memcpy (&fp, dec->cur, 8);	1185	memcpy (&fp, dec->cur, 8);
1044	dec->cur += 8;	1186	dec->cur += 8;
…		…
1047	fp = ecb_bswap64 (fp);	1189	fp = ecb_bswap64 (fp);
1048		1190
1049	return newSVnv (ecb_binary64_to_double (fp));	1191	return newSVnv (ecb_binary64_to_double (fp));
1050	}	1192	}
1051		1193
1052	// 0..19 unassigned	1194	// 0..19 unassigned simple
1053	// 24 reserved + unassigned (reserved values are not encodable)	1195	// 24 reserved + unassigned simple (reserved values are not encodable)
		1196	// 28-30 unassigned misc
		1197	// 31 break code
1054	default:	1198	default:
1055	ERR ("corrupted CBOR data (reserved/unassigned major 7 value)");	1199	ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)");
1056	}	1200	}
1057		1201
1058	break;	1202	break;
1059	}	1203	}
1060		1204
…		…
1063	}	1207	}
1064		1208
1065	static SV *	1209	static SV *
1066	decode_cbor (SV string, CBOR cbor, char **offset_return)	1210	decode_cbor (SV string, CBOR cbor, char **offset_return)
1067	{	1211	{
1068	dec_t dec = { };	1212	dec_t dec = { 0 };
1069	SV *sv;	1213	SV *sv;
1070	STRLEN len;	1214	STRLEN len;
1071	char *data = SvPVbyte (string, len);	1215	char *data = SvPVbyte (string, len);
1072		1216
1073	if (len > cbor->max_size && cbor->max_size)	1217	if (len > cbor->max_size && cbor->max_size)
…		…
1087	if (dec.cur != dec.end && !dec.err)	1231	if (dec.cur != dec.end && !dec.err)
1088	dec.err = "garbage after CBOR object";	1232	dec.err = "garbage after CBOR object";
1089		1233
1090	if (dec.err)	1234	if (dec.err)
1091	{	1235	{
		1236	if (dec.shareable)
		1237	{
		1238	// need to break cyclic links, which whould all be in shareable
		1239	int i;
		1240	SV **svp;
		1241
		1242	for (i = av_len (dec.shareable) + 1; i--; )
		1243	if ((svp = av_fetch (dec.shareable, i, 0)))
		1244	sv_setsv (*svp, &PL_sv_undef);
		1245	}
		1246
1092	SvREFCNT_dec (sv);	1247	SvREFCNT_dec (sv);
1093	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 )data, (int)(uint8_t)dec.cur);	1248	croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 )data, (int)(uint8_t)dec.cur);
1094	}	1249	}
1095		1250
1096	sv = sv_2mortal (sv);	1251	sv = sv_2mortal (sv);
1097		1252
1098	return sv;	1253	return sv;
1099	}	1254	}
1100		1255
		1256	/////////////////////////////////////////////////////////////////////////////
		1257	// incremental parser
		1258
		1259	#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0)
		1260
		1261	// returns 0 for notyet, 1 for success or error
		1262	static int
		1263	incr_parse (CBOR self, SV cborstr)
		1264	{
		1265	STRLEN cur;
		1266	SvPV (cborstr, cur);
		1267
		1268	while (ecb_expect_true (self->incr_need <= cur))
		1269	{
		1270	// table of integer count bytes
		1271	static I8 incr_len[MINOR_MASK + 1] = {
		1272	0, 0, 0, 0, 0, 0, 0, 0,
		1273	0, 0, 0, 0, 0, 0, 0, 0,
		1274	0, 0, 0, 0, 0, 0, 0, 0,
		1275	1, 2, 4, 8,-1,-1,-1,-2
		1276	};
		1277
		1278	const U8 *p = SvPVX (cborstr) + self->incr_pos;
		1279	U8 m = *p & MINOR_MASK;
		1280	IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1281	I8 ilen = incr_len[m];
		1282
		1283	self->incr_need = self->incr_pos + 1;
		1284
		1285	if (ecb_expect_false (ilen < 0))
		1286	{
		1287	if (m != MINOR_INDEF)
		1288	return 1; // error
		1289
		1290	if (*p == (MAJOR_MISC \| MINOR_INDEF))
		1291	{
		1292	if (count >= 0)
		1293	return 1; // error
		1294
		1295	count = 1;
		1296	}
		1297	else
		1298	{
		1299	av_push (self->incr_count, newSViv (-1)); //TODO: nest
		1300	count = -1;
		1301	}
		1302	}
		1303	else
		1304	{
		1305	self->incr_need += ilen;
		1306	if (ecb_expect_false (self->incr_need > cur))
		1307	return 0;
		1308
		1309	int major = *p >> MAJOR_SHIFT;
		1310
		1311	switch (major)
		1312	{
		1313	case MAJOR_TAG >> MAJOR_SHIFT:
		1314	++count; // tags merely prefix another value
		1315	break;
		1316
		1317	case MAJOR_BYTES >> MAJOR_SHIFT:
		1318	case MAJOR_TEXT >> MAJOR_SHIFT:
		1319	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1320	case MAJOR_MAP >> MAJOR_SHIFT:
		1321	{
		1322	UV len;
		1323
		1324	if (ecb_expect_false (ilen))
		1325	{
		1326	len = 0;
		1327
		1328	do {
		1329	len = (len << 8) \| *++p;
		1330	} while (--ilen);
		1331	}
		1332	else
		1333	len = m;
		1334
		1335	switch (major)
		1336	{
		1337	case MAJOR_BYTES >> MAJOR_SHIFT:
		1338	case MAJOR_TEXT >> MAJOR_SHIFT:
		1339	self->incr_need += len;
		1340	if (ecb_expect_false (self->incr_need > cur))
		1341	return 0;
		1342
		1343	break;
		1344
		1345	case MAJOR_MAP >> MAJOR_SHIFT:
		1346	len <<= 1;
		1347	case MAJOR_ARRAY >> MAJOR_SHIFT:
		1348	if (len)
		1349	{
		1350	av_push (self->incr_count, newSViv (len + 1)); //TODO: nest
		1351	count = len + 1;
		1352	}
		1353	break;
		1354	}
		1355	}
		1356	}
		1357	}
		1358
		1359	self->incr_pos = self->incr_need;
		1360
		1361	if (count > 0)
		1362	{
		1363	while (!--count)
		1364	{
		1365	if (!AvFILLp (self->incr_count))
		1366	return 1; // done
		1367
		1368	SvREFCNT_dec_NN (av_pop (self->incr_count));
		1369	count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]);
		1370	}
		1371
		1372	SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count;
		1373	}
		1374	}
		1375
		1376	return 0;
		1377	}
		1378
		1379
1101	/////////////////////////////////////////////////////////////////////////////	1380	/////////////////////////////////////////////////////////////////////////////
1102	// XS interface functions	1381	// XS interface functions
1103		1382
1104	MODULE = CBOR::XS PACKAGE = CBOR::XS	1383	MODULE = CBOR::XS PACKAGE = CBOR::XS
1105		1384
…		…
1117		1396
1118	default_filter = newSVpv ("CBOR::XS::default_filter", 0);	1397	default_filter = newSVpv ("CBOR::XS::default_filter", 0);
1119		1398
1120	sv_cbor = newSVpv ("CBOR", 0);	1399	sv_cbor = newSVpv ("CBOR", 0);
1121	SvREADONLY_on (sv_cbor);	1400	SvREADONLY_on (sv_cbor);
		1401
		1402	assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1));
1122	}	1403	}
1123		1404
1124	PROTOTYPES: DISABLE	1405	PROTOTYPES: DISABLE
1125		1406
1126	void CLONE (...)	1407	void CLONE (...)
…		…
1145	void shrink (CBOR *self, int enable = 1)	1426	void shrink (CBOR *self, int enable = 1)
1146	ALIAS:	1427	ALIAS:
1147	shrink = F_SHRINK	1428	shrink = F_SHRINK
1148	allow_unknown = F_ALLOW_UNKNOWN	1429	allow_unknown = F_ALLOW_UNKNOWN
1149	allow_sharing = F_ALLOW_SHARING	1430	allow_sharing = F_ALLOW_SHARING
1150	allow_stringref = F_ALLOW_STRINGREF	1431	allow_cycles = F_ALLOW_CYCLES
		1432	pack_strings = F_PACK_STRINGS
		1433	text_keys = F_TEXT_KEYS
		1434	text_strings = F_TEXT_STRINGS
		1435	validate_utf8 = F_VALIDATE_UTF8
1151	PPCODE:	1436	PPCODE:
1152	{	1437	{
1153	if (enable)	1438	if (enable)
1154	self->flags \|= ix;	1439	self->flags \|= ix;
1155	else	1440	else
…		…
1161	void get_shrink (CBOR *self)	1446	void get_shrink (CBOR *self)
1162	ALIAS:	1447	ALIAS:
1163	get_shrink = F_SHRINK	1448	get_shrink = F_SHRINK
1164	get_allow_unknown = F_ALLOW_UNKNOWN	1449	get_allow_unknown = F_ALLOW_UNKNOWN
1165	get_allow_sharing = F_ALLOW_SHARING	1450	get_allow_sharing = F_ALLOW_SHARING
1166	get_allow_stringref = F_ALLOW_STRINGREF	1451	get_allow_cycles = F_ALLOW_CYCLES
		1452	get_pack_strings = F_PACK_STRINGS
		1453	get_text_keys = F_TEXT_KEYS
		1454	get_text_strings = F_TEXT_STRINGS
		1455	get_validate_utf8 = F_VALIDATE_UTF8
1167	PPCODE:	1456	PPCODE:
1168	XPUSHs (boolSV (self->flags & ix));	1457	XPUSHs (boolSV (self->flags & ix));
1169		1458
1170	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)	1459	void max_depth (CBOR *self, U32 max_depth = 0x80000000UL)
1171	PPCODE:	1460	PPCODE:
…		…
1220	EXTEND (SP, 2);	1509	EXTEND (SP, 2);
1221	PUSHs (sv);	1510	PUSHs (sv);
1222	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));	1511	PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr))));
1223	}	1512	}
1224		1513
		1514	void incr_parse (CBOR self, SV cborstr)
		1515	ALIAS:
		1516	incr_parse_multiple = 1
		1517	PPCODE:
		1518	{
		1519	if (SvUTF8 (cborstr))
		1520	sv_utf8_downgrade (cborstr, 0);
		1521
		1522	if (!self->incr_count)
		1523	{
		1524	self->incr_count = newAV ();
		1525	self->incr_pos = 0;
		1526	self->incr_need = 1;
		1527
		1528	av_push (self->incr_count, newSViv (1));
		1529	}
		1530
		1531	do
		1532	{
		1533	if (!incr_parse (self, cborstr))
		1534	{
		1535	if (self->incr_need > self->max_size && self->max_size)
		1536	croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu",
		1537	(unsigned long)self->incr_need, (unsigned long)self->max_size);
		1538
		1539	break;
		1540	}
		1541
		1542	SV *sv;
		1543	char *offset;
		1544
		1545	PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN;
		1546	XPUSHs (sv);
		1547
		1548	sv_chop (cborstr, offset);
		1549
		1550	av_clear (self->incr_count);
		1551	av_push (self->incr_count, newSViv (1));
		1552
		1553	self->incr_pos = 0;
		1554	self->incr_need = self->incr_pos + 1;
		1555	}
		1556	while (ix);
		1557	}
		1558
		1559	void incr_reset (CBOR *self)
		1560	CODE:
		1561	{
		1562	SvREFCNT_dec (self->incr_count);
		1563	self->incr_count = 0;
		1564	}
		1565
1225	void DESTROY (CBOR *self)	1566	void DESTROY (CBOR *self)
1226	PPCODE:	1567	PPCODE:
1227	cbor_free (self);	1568	cbor_free (self);
1228		1569
1229	PROTOTYPES: ENABLE	1570	PROTOTYPES: ENABLE
1230		1571
1231	void encode_cbor (SV *scalar)	1572	void encode_cbor (SV *scalar)
		1573	ALIAS:
		1574	encode_cbor = 0
		1575	encode_cbor_sharing = F_ALLOW_SHARING
1232	PPCODE:	1576	PPCODE:
1233	{	1577	{
1234	CBOR cbor;	1578	CBOR cbor;
1235	cbor_init (&cbor);	1579	cbor_init (&cbor);
		1580	cbor.flags \|= ix;
1236	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;	1581	PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN;
1237	XPUSHs (scalar);	1582	XPUSHs (scalar);
1238	}	1583	}
1239		1584
1240	void decode_cbor (SV *cborstr)	1585	void decode_cbor (SV *cborstr)

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Comparing CBOR-XS/XS.xs (file contents): Revision 1.31 by root, Thu Nov 28 11:43:26 2013 UTC vs. Revision 1.57 by root, Fri Nov 25 12:16:12 2016 UTC

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Comparing CBOR-XS/XS.xs (file contents):
Revision 1.31 by root, Thu Nov 28 11:43:26 2013 UTC vs.
Revision 1.57 by root, Fri Nov 25 12:16:12 2016 UTC