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1.1 |
#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
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#include <assert.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <limits.h> |
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#include <float.h> |
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1.44 |
#define ECB_NO_THREADS 1 |
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1.1 |
#include "ecb.h" |
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1.14 |
// compatibility with perl <5.18 |
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#ifndef HvNAMELEN_get |
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# define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
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#endif |
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#ifndef HvNAMELEN |
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# define HvNAMELEN(hv) HvNAMELEN_get (hv) |
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#endif |
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#ifndef HvNAMEUTF8 |
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# define HvNAMEUTF8(hv) 0 |
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#endif |
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1.28 |
#ifndef SvREFCNT_dec_NN |
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# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
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#endif |
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1.14 |
|
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1.35 |
// known major and minor types |
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enum cbor_type |
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{ |
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MAJOR_SHIFT = 5, |
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MINOR_MASK = 0x1f, |
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MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
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MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
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MAJOR_BYTES = 2 << MAJOR_SHIFT, |
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MAJOR_TEXT = 3 << MAJOR_SHIFT, |
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MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
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MAJOR_MAP = 5 << MAJOR_SHIFT, |
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MAJOR_TAG = 6 << MAJOR_SHIFT, |
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MAJOR_MISC = 7 << MAJOR_SHIFT, |
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// INT/STRING/ARRAY/MAP subtypes |
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LENGTH_EXT1 = 24, |
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LENGTH_EXT2 = 25, |
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LENGTH_EXT4 = 26, |
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LENGTH_EXT8 = 27, |
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// SIMPLE types (effectively MISC subtypes) |
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SIMPLE_FALSE = 20, |
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SIMPLE_TRUE = 21, |
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SIMPLE_NULL = 22, |
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SIMPLE_UNDEF = 23, |
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// MISC subtype (unused) |
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MISC_EXT1 = 24, |
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MISC_FLOAT16 = 25, |
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MISC_FLOAT32 = 26, |
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MISC_FLOAT64 = 27, |
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// BYTES/TEXT/ARRAY/MAP |
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MINOR_INDEF = 31, |
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}; |
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1.9 |
// known tags |
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1.8 |
enum cbor_tag |
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{ |
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1.35 |
// extensions |
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CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
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CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
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CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
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CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
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CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
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CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
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CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
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// rfc7049 |
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CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
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CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
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CBOR_TAG_POS_BIGNUM = 2, // byte string |
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CBOR_TAG_NEG_BIGNUM = 3, // byte string |
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CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
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CBOR_TAG_BIGFLOAT = 5, // array |
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CBOR_TAG_CONV_B64U = 21, // base64url, any |
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CBOR_TAG_CONV_B64 = 22, // base64, any |
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CBOR_TAG_CONV_HEX = 23, // base16, any |
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CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
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CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
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CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
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CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
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CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
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CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
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1.8 |
|
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1.35 |
CBOR_TAG_MAGIC = 55799, // self-describe cbor |
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1.8 |
}; |
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1.24 |
#define F_SHRINK 0x00000001UL |
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#define F_ALLOW_UNKNOWN 0x00000002UL |
102 |
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1.32 |
#define F_ALLOW_SHARING 0x00000004UL |
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1.37 |
#define F_ALLOW_CYCLES 0x00000008UL |
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#define F_PACK_STRINGS 0x00000010UL |
105 |
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1.38 |
#define F_VALIDATE_UTF8 0x00000020UL |
106 |
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1.1 |
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#define INIT_SIZE 32 // initial scalar size to be allocated |
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#define SB do { |
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#define SE } while (0) |
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#define IN_RANGE_INC(type,val,beg,end) \ |
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((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
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<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
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#define ERR_NESTING_EXCEEDED "cbor text or perl structure exceeds maximum nesting level (max_depth set too low?)" |
117 |
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#ifdef USE_ITHREADS |
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# define CBOR_SLOW 1 |
120 |
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# define CBOR_STASH (cbor_stash ? cbor_stash : gv_stashpv ("CBOR::XS", 1)) |
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#else |
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# define CBOR_SLOW 0 |
123 |
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# define CBOR_STASH cbor_stash |
124 |
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#endif |
125 |
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126 |
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1.10 |
static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
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1.27 |
static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
128 |
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1.1 |
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typedef struct { |
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U32 flags; |
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U32 max_depth; |
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STRLEN max_size; |
133 |
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1.27 |
SV *filter; |
134 |
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1.40 |
|
135 |
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// for the incremental parser |
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STRLEN incr_pos; // the current offset into the text |
137 |
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STRLEN incr_need; // minimum bytes needed to decode |
138 |
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AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
139 |
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1.1 |
} CBOR; |
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141 |
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1.5 |
ecb_inline void |
142 |
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1.1 |
cbor_init (CBOR *cbor) |
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{ |
144 |
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Zero (cbor, 1, CBOR); |
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cbor->max_depth = 512; |
146 |
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} |
147 |
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148 |
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1.27 |
ecb_inline void |
149 |
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cbor_free (CBOR *cbor) |
150 |
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{ |
151 |
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SvREFCNT_dec (cbor->filter); |
152 |
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1.40 |
SvREFCNT_dec (cbor->incr_count); |
153 |
root |
1.27 |
} |
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155 |
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1.1 |
///////////////////////////////////////////////////////////////////////////// |
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// utility functions |
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158 |
root |
1.5 |
ecb_inline SV * |
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1.1 |
get_bool (const char *name) |
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{ |
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SV *sv = get_sv (name, 1); |
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163 |
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SvREADONLY_on (sv); |
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SvREADONLY_on (SvRV (sv)); |
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166 |
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return sv; |
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} |
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169 |
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1.5 |
ecb_inline void |
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1.1 |
shrink (SV *sv) |
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{ |
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sv_utf8_downgrade (sv, 1); |
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174 |
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if (SvLEN (sv) > SvCUR (sv) + 1) |
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{ |
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#ifdef SvPV_shrink_to_cur |
177 |
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SvPV_shrink_to_cur (sv); |
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#elif defined (SvPV_renew) |
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SvPV_renew (sv, SvCUR (sv) + 1); |
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#endif |
181 |
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} |
182 |
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} |
183 |
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184 |
root |
1.21 |
// minimum length of a string to be registered for stringref |
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ecb_inline int |
186 |
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minimum_string_length (UV idx) |
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{ |
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return idx > 23 |
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? idx > 0xffU |
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? idx > 0xffffU |
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? idx > 0xffffffffU |
192 |
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1.29 |
? 11 |
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: 7 |
194 |
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1.21 |
: 5 |
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: 4 |
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: 3; |
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} |
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199 |
root |
1.1 |
///////////////////////////////////////////////////////////////////////////// |
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// encoder |
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202 |
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// structure used for encoding CBOR |
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typedef struct |
204 |
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{ |
205 |
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char *cur; // SvPVX (sv) + current output position |
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char *end; // SvEND (sv) |
207 |
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SV *sv; // result scalar |
208 |
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CBOR cbor; |
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U32 depth; // recursion level |
210 |
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1.20 |
HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
211 |
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UV stringref_idx; |
212 |
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1.19 |
HV *shareable; // ptr => index, or 0 |
213 |
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UV shareable_idx; |
214 |
root |
1.1 |
} enc_t; |
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216 |
root |
1.5 |
ecb_inline void |
217 |
root |
1.1 |
need (enc_t *enc, STRLEN len) |
218 |
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{ |
219 |
root |
1.5 |
if (ecb_expect_false (enc->cur + len >= enc->end)) |
220 |
root |
1.1 |
{ |
221 |
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STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
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SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
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enc->cur = SvPVX (enc->sv) + cur; |
224 |
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enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
225 |
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} |
226 |
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} |
227 |
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228 |
root |
1.5 |
ecb_inline void |
229 |
root |
1.1 |
encode_ch (enc_t *enc, char ch) |
230 |
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{ |
231 |
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need (enc, 1); |
232 |
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*enc->cur++ = ch; |
233 |
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} |
234 |
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235 |
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static void |
236 |
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encode_uint (enc_t *enc, int major, UV len) |
237 |
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{ |
238 |
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need (enc, 9); |
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240 |
root |
1.35 |
if (ecb_expect_true (len < LENGTH_EXT1)) |
241 |
root |
1.1 |
*enc->cur++ = major | len; |
242 |
root |
1.36 |
else if (ecb_expect_true (len <= 0xffU)) |
243 |
root |
1.1 |
{ |
244 |
root |
1.35 |
*enc->cur++ = major | LENGTH_EXT1; |
245 |
root |
1.1 |
*enc->cur++ = len; |
246 |
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} |
247 |
root |
1.36 |
else if (len <= 0xffffU) |
248 |
root |
1.1 |
{ |
249 |
root |
1.35 |
*enc->cur++ = major | LENGTH_EXT2; |
250 |
root |
1.1 |
*enc->cur++ = len >> 8; |
251 |
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*enc->cur++ = len; |
252 |
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} |
253 |
root |
1.36 |
else if (len <= 0xffffffffU) |
254 |
root |
1.1 |
{ |
255 |
root |
1.35 |
*enc->cur++ = major | LENGTH_EXT4; |
256 |
root |
1.1 |
*enc->cur++ = len >> 24; |
257 |
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*enc->cur++ = len >> 16; |
258 |
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*enc->cur++ = len >> 8; |
259 |
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*enc->cur++ = len; |
260 |
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} |
261 |
root |
1.4 |
else |
262 |
root |
1.1 |
{ |
263 |
root |
1.35 |
*enc->cur++ = major | LENGTH_EXT8; |
264 |
root |
1.1 |
*enc->cur++ = len >> 56; |
265 |
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*enc->cur++ = len >> 48; |
266 |
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*enc->cur++ = len >> 40; |
267 |
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*enc->cur++ = len >> 32; |
268 |
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*enc->cur++ = len >> 24; |
269 |
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*enc->cur++ = len >> 16; |
270 |
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*enc->cur++ = len >> 8; |
271 |
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*enc->cur++ = len; |
272 |
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} |
273 |
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} |
274 |
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275 |
root |
1.21 |
ecb_inline void |
276 |
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encode_tag (enc_t *enc, UV tag) |
277 |
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{ |
278 |
root |
1.35 |
encode_uint (enc, MAJOR_TAG, tag); |
279 |
root |
1.21 |
} |
280 |
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281 |
root |
1.30 |
ecb_inline void |
282 |
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encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
283 |
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{ |
284 |
root |
1.35 |
encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
285 |
root |
1.30 |
need (enc, len); |
286 |
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memcpy (enc->cur, str, len); |
287 |
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enc->cur += len; |
288 |
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} |
289 |
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290 |
root |
1.1 |
static void |
291 |
root |
1.30 |
encode_strref (enc_t *enc, int utf8, char *str, STRLEN len) |
292 |
root |
1.1 |
{ |
293 |
root |
1.32 |
if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
294 |
root |
1.21 |
{ |
295 |
root |
1.22 |
SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
296 |
root |
1.21 |
|
297 |
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if (SvOK (*svp)) |
298 |
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{ |
299 |
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// already registered, use stringref |
300 |
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encode_tag (enc, CBOR_TAG_STRINGREF); |
301 |
root |
1.35 |
encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
302 |
root |
1.21 |
return; |
303 |
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} |
304 |
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else if (len >= minimum_string_length (enc->stringref_idx)) |
305 |
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{ |
306 |
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// register only |
307 |
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sv_setuv (*svp, enc->stringref_idx); |
308 |
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++enc->stringref_idx; |
309 |
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} |
310 |
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} |
311 |
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312 |
root |
1.30 |
encode_str (enc, utf8, str, len); |
313 |
root |
1.1 |
} |
314 |
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315 |
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static void encode_sv (enc_t *enc, SV *sv); |
316 |
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317 |
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static void |
318 |
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encode_av (enc_t *enc, AV *av) |
319 |
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{ |
320 |
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int i, len = av_len (av); |
321 |
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322 |
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if (enc->depth >= enc->cbor.max_depth) |
323 |
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croak (ERR_NESTING_EXCEEDED); |
324 |
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325 |
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++enc->depth; |
326 |
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327 |
root |
1.35 |
encode_uint (enc, MAJOR_ARRAY, len + 1); |
328 |
root |
1.1 |
|
329 |
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for (i = 0; i <= len; ++i) |
330 |
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{ |
331 |
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SV **svp = av_fetch (av, i, 0); |
332 |
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encode_sv (enc, svp ? *svp : &PL_sv_undef); |
333 |
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} |
334 |
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335 |
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--enc->depth; |
336 |
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} |
337 |
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338 |
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static void |
339 |
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encode_hv (enc_t *enc, HV *hv) |
340 |
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{ |
341 |
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HE *he; |
342 |
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343 |
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if (enc->depth >= enc->cbor.max_depth) |
344 |
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croak (ERR_NESTING_EXCEEDED); |
345 |
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346 |
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++enc->depth; |
347 |
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348 |
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int pairs = hv_iterinit (hv); |
349 |
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int mg = SvMAGICAL (hv); |
350 |
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351 |
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if (mg) |
352 |
root |
1.35 |
encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
353 |
root |
1.1 |
else |
354 |
root |
1.35 |
encode_uint (enc, MAJOR_MAP, pairs); |
355 |
root |
1.1 |
|
356 |
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while ((he = hv_iternext (hv))) |
357 |
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{ |
358 |
root |
1.21 |
if (HeKLEN (he) == HEf_SVKEY) |
359 |
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encode_sv (enc, HeSVKEY (he)); |
360 |
root |
1.1 |
else |
361 |
root |
1.30 |
encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
362 |
root |
1.1 |
|
363 |
root |
1.5 |
encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
364 |
root |
1.1 |
} |
365 |
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366 |
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if (mg) |
367 |
root |
1.35 |
encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
368 |
root |
1.1 |
|
369 |
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|
--enc->depth; |
370 |
|
|
} |
371 |
|
|
|
372 |
|
|
// encode objects, arrays and special \0=false and \1=true values. |
373 |
|
|
static void |
374 |
|
|
encode_rv (enc_t *enc, SV *sv) |
375 |
|
|
{ |
376 |
root |
1.19 |
SvGETMAGIC (sv); |
377 |
root |
1.1 |
|
378 |
root |
1.19 |
svtype svt = SvTYPE (sv); |
379 |
root |
1.18 |
|
380 |
root |
1.5 |
if (ecb_expect_false (SvOBJECT (sv))) |
381 |
root |
1.1 |
{ |
382 |
root |
1.10 |
HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
383 |
|
|
? types_boolean_stash |
384 |
|
|
: gv_stashpv ("Types::Serialiser::Boolean", 1); |
385 |
|
|
HV *error_stash = !CBOR_SLOW || types_error_stash |
386 |
|
|
? types_error_stash |
387 |
|
|
: gv_stashpv ("Types::Serialiser::Error", 1); |
388 |
root |
1.6 |
HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
389 |
|
|
? cbor_tagged_stash |
390 |
|
|
: gv_stashpv ("CBOR::XS::Tagged" , 1); |
391 |
root |
1.1 |
|
392 |
root |
1.11 |
HV *stash = SvSTASH (sv); |
393 |
|
|
|
394 |
|
|
if (stash == boolean_stash) |
395 |
root |
1.34 |
{ |
396 |
root |
1.35 |
encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
397 |
root |
1.34 |
return; |
398 |
|
|
} |
399 |
root |
1.11 |
else if (stash == error_stash) |
400 |
root |
1.34 |
{ |
401 |
root |
1.35 |
encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
402 |
root |
1.34 |
return; |
403 |
|
|
} |
404 |
root |
1.11 |
else if (stash == tagged_stash) |
405 |
root |
1.6 |
{ |
406 |
|
|
if (svt != SVt_PVAV) |
407 |
|
|
croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
408 |
|
|
|
409 |
root |
1.35 |
encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
410 |
root |
1.6 |
encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
411 |
root |
1.34 |
|
412 |
|
|
return; |
413 |
root |
1.6 |
} |
414 |
root |
1.34 |
} |
415 |
|
|
|
416 |
|
|
if (ecb_expect_false (SvREFCNT (sv) > 1) |
417 |
|
|
&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
418 |
|
|
{ |
419 |
|
|
if (!enc->shareable) |
420 |
|
|
enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
421 |
|
|
|
422 |
|
|
SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
423 |
|
|
|
424 |
|
|
if (SvOK (*svp)) |
425 |
|
|
{ |
426 |
|
|
encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
427 |
root |
1.35 |
encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
428 |
root |
1.34 |
return; |
429 |
|
|
} |
430 |
|
|
else |
431 |
|
|
{ |
432 |
|
|
sv_setuv (*svp, enc->shareable_idx); |
433 |
|
|
++enc->shareable_idx; |
434 |
|
|
encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
435 |
|
|
} |
436 |
|
|
} |
437 |
|
|
|
438 |
|
|
if (ecb_expect_false (SvOBJECT (sv))) |
439 |
|
|
{ |
440 |
|
|
HV *stash = SvSTASH (sv); |
441 |
|
|
GV *method; |
442 |
|
|
|
443 |
|
|
if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
444 |
root |
1.1 |
{ |
445 |
root |
1.11 |
dSP; |
446 |
|
|
|
447 |
|
|
ENTER; SAVETMPS; PUSHMARK (SP); |
448 |
root |
1.6 |
// we re-bless the reference to get overload and other niceties right |
449 |
root |
1.11 |
XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
450 |
|
|
|
451 |
|
|
PUTBACK; |
452 |
|
|
// G_SCALAR ensures that return value is 1 |
453 |
|
|
call_sv ((SV *)GvCV (method), G_SCALAR); |
454 |
|
|
SPAGAIN; |
455 |
|
|
|
456 |
|
|
// catch this surprisingly common error |
457 |
|
|
if (SvROK (TOPs) && SvRV (TOPs) == sv) |
458 |
|
|
croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
459 |
|
|
|
460 |
|
|
encode_sv (enc, POPs); |
461 |
|
|
|
462 |
|
|
PUTBACK; |
463 |
|
|
|
464 |
|
|
FREETMPS; LEAVE; |
465 |
|
|
} |
466 |
|
|
else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
467 |
|
|
{ |
468 |
|
|
dSP; |
469 |
root |
1.6 |
|
470 |
root |
1.11 |
ENTER; SAVETMPS; PUSHMARK (SP); |
471 |
|
|
EXTEND (SP, 2); |
472 |
|
|
// we re-bless the reference to get overload and other niceties right |
473 |
|
|
PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
474 |
|
|
PUSHs (sv_cbor); |
475 |
root |
1.1 |
|
476 |
root |
1.11 |
PUTBACK; |
477 |
|
|
int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
478 |
|
|
SPAGAIN; |
479 |
root |
1.6 |
|
480 |
root |
1.11 |
// catch this surprisingly common error |
481 |
|
|
if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
482 |
|
|
croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
483 |
root |
1.6 |
|
484 |
root |
1.18 |
encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
485 |
root |
1.35 |
encode_uint (enc, MAJOR_ARRAY, count + 1); |
486 |
root |
1.30 |
encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
487 |
root |
1.6 |
|
488 |
root |
1.11 |
while (count) |
489 |
|
|
encode_sv (enc, SP[1 - count--]); |
490 |
root |
1.6 |
|
491 |
root |
1.11 |
PUTBACK; |
492 |
root |
1.6 |
|
493 |
root |
1.11 |
FREETMPS; LEAVE; |
494 |
root |
1.1 |
} |
495 |
root |
1.11 |
else |
496 |
|
|
croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
497 |
|
|
SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
498 |
root |
1.1 |
} |
499 |
|
|
else if (svt == SVt_PVHV) |
500 |
|
|
encode_hv (enc, (HV *)sv); |
501 |
|
|
else if (svt == SVt_PVAV) |
502 |
|
|
encode_av (enc, (AV *)sv); |
503 |
root |
1.18 |
else |
504 |
root |
1.1 |
{ |
505 |
root |
1.18 |
encode_tag (enc, CBOR_TAG_INDIRECTION); |
506 |
|
|
encode_sv (enc, sv); |
507 |
root |
1.1 |
} |
508 |
|
|
} |
509 |
|
|
|
510 |
|
|
static void |
511 |
|
|
encode_nv (enc_t *enc, SV *sv) |
512 |
|
|
{ |
513 |
|
|
double nv = SvNVX (sv); |
514 |
|
|
|
515 |
|
|
need (enc, 9); |
516 |
|
|
|
517 |
root |
1.35 |
if (ecb_expect_false (nv == (NV)(U32)nv)) |
518 |
|
|
encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
519 |
root |
1.1 |
//TODO: maybe I32? |
520 |
root |
1.5 |
else if (ecb_expect_false (nv == (float)nv)) |
521 |
root |
1.1 |
{ |
522 |
|
|
uint32_t fp = ecb_float_to_binary32 (nv); |
523 |
|
|
|
524 |
root |
1.35 |
*enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
525 |
root |
1.1 |
|
526 |
|
|
if (!ecb_big_endian ()) |
527 |
|
|
fp = ecb_bswap32 (fp); |
528 |
|
|
|
529 |
|
|
memcpy (enc->cur, &fp, 4); |
530 |
|
|
enc->cur += 4; |
531 |
|
|
} |
532 |
|
|
else |
533 |
|
|
{ |
534 |
|
|
uint64_t fp = ecb_double_to_binary64 (nv); |
535 |
|
|
|
536 |
root |
1.35 |
*enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
537 |
root |
1.1 |
|
538 |
|
|
if (!ecb_big_endian ()) |
539 |
|
|
fp = ecb_bswap64 (fp); |
540 |
|
|
|
541 |
|
|
memcpy (enc->cur, &fp, 8); |
542 |
|
|
enc->cur += 8; |
543 |
|
|
} |
544 |
|
|
} |
545 |
|
|
|
546 |
|
|
static void |
547 |
|
|
encode_sv (enc_t *enc, SV *sv) |
548 |
|
|
{ |
549 |
|
|
SvGETMAGIC (sv); |
550 |
|
|
|
551 |
|
|
if (SvPOKp (sv)) |
552 |
|
|
{ |
553 |
|
|
STRLEN len; |
554 |
|
|
char *str = SvPV (sv, len); |
555 |
root |
1.30 |
encode_strref (enc, SvUTF8 (sv), str, len); |
556 |
root |
1.1 |
} |
557 |
|
|
else if (SvNOKp (sv)) |
558 |
|
|
encode_nv (enc, sv); |
559 |
|
|
else if (SvIOKp (sv)) |
560 |
|
|
{ |
561 |
|
|
if (SvIsUV (sv)) |
562 |
root |
1.35 |
encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
563 |
root |
1.1 |
else if (SvIVX (sv) >= 0) |
564 |
root |
1.35 |
encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
565 |
root |
1.1 |
else |
566 |
root |
1.35 |
encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
567 |
root |
1.1 |
} |
568 |
|
|
else if (SvROK (sv)) |
569 |
|
|
encode_rv (enc, SvRV (sv)); |
570 |
|
|
else if (!SvOK (sv)) |
571 |
root |
1.35 |
encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
572 |
root |
1.1 |
else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
573 |
root |
1.35 |
encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
574 |
root |
1.1 |
else |
575 |
|
|
croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
576 |
|
|
SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
577 |
|
|
} |
578 |
|
|
|
579 |
|
|
static SV * |
580 |
|
|
encode_cbor (SV *scalar, CBOR *cbor) |
581 |
|
|
{ |
582 |
root |
1.18 |
enc_t enc = { }; |
583 |
root |
1.1 |
|
584 |
|
|
enc.cbor = *cbor; |
585 |
|
|
enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
586 |
|
|
enc.cur = SvPVX (enc.sv); |
587 |
|
|
enc.end = SvEND (enc.sv); |
588 |
|
|
|
589 |
|
|
SvPOK_only (enc.sv); |
590 |
root |
1.20 |
|
591 |
root |
1.32 |
if (cbor->flags & F_PACK_STRINGS) |
592 |
root |
1.20 |
{ |
593 |
|
|
encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
594 |
|
|
enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
595 |
|
|
enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
596 |
|
|
} |
597 |
|
|
|
598 |
root |
1.1 |
encode_sv (&enc, scalar); |
599 |
|
|
|
600 |
|
|
SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
601 |
|
|
*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
602 |
|
|
|
603 |
|
|
if (enc.cbor.flags & F_SHRINK) |
604 |
|
|
shrink (enc.sv); |
605 |
|
|
|
606 |
|
|
return enc.sv; |
607 |
|
|
} |
608 |
|
|
|
609 |
|
|
///////////////////////////////////////////////////////////////////////////// |
610 |
|
|
// decoder |
611 |
|
|
|
612 |
|
|
// structure used for decoding CBOR |
613 |
|
|
typedef struct |
614 |
|
|
{ |
615 |
|
|
U8 *cur; // current parser pointer |
616 |
|
|
U8 *end; // end of input string |
617 |
|
|
const char *err; // parse error, if != 0 |
618 |
|
|
CBOR cbor; |
619 |
|
|
U32 depth; // recursion depth |
620 |
|
|
U32 maxdepth; // recursion depth limit |
621 |
root |
1.19 |
AV *shareable; |
622 |
root |
1.20 |
AV *stringref; |
623 |
root |
1.27 |
SV *decode_tagged; |
624 |
root |
1.1 |
} dec_t; |
625 |
|
|
|
626 |
|
|
#define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
627 |
|
|
|
628 |
root |
1.5 |
#define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
629 |
root |
1.1 |
|
630 |
|
|
#define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
631 |
|
|
#define DEC_DEC_DEPTH --dec->depth |
632 |
|
|
|
633 |
|
|
static UV |
634 |
|
|
decode_uint (dec_t *dec) |
635 |
|
|
{ |
636 |
root |
1.35 |
U8 m = *dec->cur & MINOR_MASK; |
637 |
|
|
++dec->cur; |
638 |
|
|
|
639 |
|
|
if (ecb_expect_true (m < LENGTH_EXT1)) |
640 |
|
|
return m; |
641 |
root |
1.36 |
else if (ecb_expect_true (m == LENGTH_EXT1)) |
642 |
|
|
{ |
643 |
|
|
WANT (1); |
644 |
|
|
dec->cur += 1; |
645 |
|
|
return dec->cur[-1]; |
646 |
|
|
} |
647 |
|
|
else if (ecb_expect_true (m == LENGTH_EXT2)) |
648 |
|
|
{ |
649 |
|
|
WANT (2); |
650 |
|
|
dec->cur += 2; |
651 |
|
|
return (((UV)dec->cur[-2]) << 8) |
652 |
|
|
| ((UV)dec->cur[-1]); |
653 |
|
|
} |
654 |
|
|
else if (ecb_expect_true (m == LENGTH_EXT4)) |
655 |
|
|
{ |
656 |
|
|
WANT (4); |
657 |
|
|
dec->cur += 4; |
658 |
|
|
return (((UV)dec->cur[-4]) << 24) |
659 |
|
|
| (((UV)dec->cur[-3]) << 16) |
660 |
|
|
| (((UV)dec->cur[-2]) << 8) |
661 |
|
|
| ((UV)dec->cur[-1]); |
662 |
|
|
} |
663 |
|
|
else if (ecb_expect_true (m == LENGTH_EXT8)) |
664 |
root |
1.1 |
{ |
665 |
root |
1.36 |
WANT (8); |
666 |
|
|
dec->cur += 8; |
667 |
root |
1.34 |
|
668 |
root |
1.36 |
return |
669 |
root |
1.34 |
#if UVSIZE < 8 |
670 |
root |
1.36 |
0 |
671 |
root |
1.34 |
#else |
672 |
root |
1.36 |
(((UV)dec->cur[-8]) << 56) |
673 |
|
|
| (((UV)dec->cur[-7]) << 48) |
674 |
|
|
| (((UV)dec->cur[-6]) << 40) |
675 |
|
|
| (((UV)dec->cur[-5]) << 32) |
676 |
root |
1.34 |
#endif |
677 |
root |
1.36 |
| (((UV)dec->cur[-4]) << 24) |
678 |
|
|
| (((UV)dec->cur[-3]) << 16) |
679 |
|
|
| (((UV)dec->cur[-2]) << 8) |
680 |
|
|
| ((UV)dec->cur[-1]); |
681 |
root |
1.1 |
} |
682 |
root |
1.36 |
else |
683 |
|
|
ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
684 |
root |
1.1 |
|
685 |
|
|
fail: |
686 |
|
|
return 0; |
687 |
|
|
} |
688 |
|
|
|
689 |
|
|
static SV *decode_sv (dec_t *dec); |
690 |
|
|
|
691 |
|
|
static SV * |
692 |
|
|
decode_av (dec_t *dec) |
693 |
|
|
{ |
694 |
|
|
AV *av = newAV (); |
695 |
|
|
|
696 |
|
|
DEC_INC_DEPTH; |
697 |
|
|
|
698 |
root |
1.35 |
if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
699 |
root |
1.1 |
{ |
700 |
|
|
++dec->cur; |
701 |
|
|
|
702 |
|
|
for (;;) |
703 |
|
|
{ |
704 |
|
|
WANT (1); |
705 |
|
|
|
706 |
root |
1.35 |
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
707 |
root |
1.1 |
{ |
708 |
|
|
++dec->cur; |
709 |
|
|
break; |
710 |
|
|
} |
711 |
|
|
|
712 |
|
|
av_push (av, decode_sv (dec)); |
713 |
|
|
} |
714 |
|
|
} |
715 |
|
|
else |
716 |
|
|
{ |
717 |
|
|
int i, len = decode_uint (dec); |
718 |
|
|
|
719 |
root |
1.36 |
WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
720 |
root |
1.1 |
av_fill (av, len - 1); |
721 |
|
|
|
722 |
|
|
for (i = 0; i < len; ++i) |
723 |
|
|
AvARRAY (av)[i] = decode_sv (dec); |
724 |
|
|
} |
725 |
|
|
|
726 |
|
|
DEC_DEC_DEPTH; |
727 |
|
|
return newRV_noinc ((SV *)av); |
728 |
|
|
|
729 |
|
|
fail: |
730 |
|
|
SvREFCNT_dec (av); |
731 |
|
|
DEC_DEC_DEPTH; |
732 |
|
|
return &PL_sv_undef; |
733 |
|
|
} |
734 |
|
|
|
735 |
root |
1.16 |
static void |
736 |
|
|
decode_he (dec_t *dec, HV *hv) |
737 |
|
|
{ |
738 |
|
|
// for speed reasons, we specialcase single-string |
739 |
root |
1.21 |
// byte or utf-8 strings as keys, but only when !stringref |
740 |
|
|
|
741 |
root |
1.23 |
if (ecb_expect_true (!dec->stringref)) |
742 |
root |
1.43 |
if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
743 |
root |
1.21 |
{ |
744 |
|
|
I32 len = decode_uint (dec); |
745 |
|
|
char *key = (char *)dec->cur; |
746 |
root |
1.16 |
|
747 |
root |
1.21 |
dec->cur += len; |
748 |
|
|
|
749 |
|
|
hv_store (hv, key, len, decode_sv (dec), 0); |
750 |
root |
1.16 |
|
751 |
root |
1.21 |
return; |
752 |
|
|
} |
753 |
root |
1.43 |
else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
754 |
root |
1.21 |
{ |
755 |
|
|
I32 len = decode_uint (dec); |
756 |
|
|
char *key = (char *)dec->cur; |
757 |
root |
1.16 |
|
758 |
root |
1.21 |
dec->cur += len; |
759 |
root |
1.20 |
|
760 |
root |
1.38 |
if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
761 |
|
|
if (!is_utf8_string (key, len)) |
762 |
|
|
ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
763 |
root |
1.16 |
|
764 |
root |
1.21 |
hv_store (hv, key, -len, decode_sv (dec), 0); |
765 |
root |
1.16 |
|
766 |
root |
1.21 |
return; |
767 |
|
|
} |
768 |
root |
1.20 |
|
769 |
root |
1.21 |
SV *k = decode_sv (dec); |
770 |
|
|
SV *v = decode_sv (dec); |
771 |
root |
1.16 |
|
772 |
root |
1.21 |
hv_store_ent (hv, k, v, 0); |
773 |
|
|
SvREFCNT_dec (k); |
774 |
root |
1.38 |
|
775 |
|
|
fail: |
776 |
|
|
; |
777 |
root |
1.16 |
} |
778 |
|
|
|
779 |
root |
1.1 |
static SV * |
780 |
|
|
decode_hv (dec_t *dec) |
781 |
|
|
{ |
782 |
|
|
HV *hv = newHV (); |
783 |
|
|
|
784 |
|
|
DEC_INC_DEPTH; |
785 |
|
|
|
786 |
root |
1.35 |
if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
787 |
root |
1.1 |
{ |
788 |
|
|
++dec->cur; |
789 |
|
|
|
790 |
|
|
for (;;) |
791 |
|
|
{ |
792 |
|
|
WANT (1); |
793 |
|
|
|
794 |
root |
1.35 |
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
795 |
root |
1.1 |
{ |
796 |
|
|
++dec->cur; |
797 |
|
|
break; |
798 |
|
|
} |
799 |
|
|
|
800 |
root |
1.16 |
decode_he (dec, hv); |
801 |
root |
1.1 |
} |
802 |
|
|
} |
803 |
|
|
else |
804 |
|
|
{ |
805 |
root |
1.16 |
int pairs = decode_uint (dec); |
806 |
root |
1.1 |
|
807 |
root |
1.16 |
while (pairs--) |
808 |
|
|
decode_he (dec, hv); |
809 |
root |
1.1 |
} |
810 |
|
|
|
811 |
|
|
DEC_DEC_DEPTH; |
812 |
|
|
return newRV_noinc ((SV *)hv); |
813 |
|
|
|
814 |
|
|
fail: |
815 |
|
|
SvREFCNT_dec (hv); |
816 |
|
|
DEC_DEC_DEPTH; |
817 |
|
|
return &PL_sv_undef; |
818 |
|
|
} |
819 |
|
|
|
820 |
|
|
static SV * |
821 |
|
|
decode_str (dec_t *dec, int utf8) |
822 |
|
|
{ |
823 |
root |
1.6 |
SV *sv = 0; |
824 |
root |
1.1 |
|
825 |
root |
1.35 |
if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
826 |
root |
1.1 |
{ |
827 |
root |
1.33 |
// indefinite length strings |
828 |
root |
1.1 |
++dec->cur; |
829 |
|
|
|
830 |
root |
1.35 |
U8 major = *dec->cur & MAJOR_MISC; |
831 |
root |
1.33 |
|
832 |
root |
1.1 |
sv = newSVpvn ("", 0); |
833 |
|
|
|
834 |
|
|
for (;;) |
835 |
|
|
{ |
836 |
|
|
WANT (1); |
837 |
|
|
|
838 |
root |
1.35 |
if ((*dec->cur - major) > LENGTH_EXT8) |
839 |
|
|
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
840 |
root |
1.33 |
{ |
841 |
|
|
++dec->cur; |
842 |
|
|
break; |
843 |
|
|
} |
844 |
|
|
else |
845 |
|
|
ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
846 |
|
|
|
847 |
|
|
STRLEN len = decode_uint (dec); |
848 |
root |
1.1 |
|
849 |
root |
1.33 |
WANT (len); |
850 |
|
|
sv_catpvn (sv, dec->cur, len); |
851 |
|
|
dec->cur += len; |
852 |
root |
1.1 |
} |
853 |
|
|
} |
854 |
|
|
else |
855 |
|
|
{ |
856 |
|
|
STRLEN len = decode_uint (dec); |
857 |
|
|
|
858 |
|
|
WANT (len); |
859 |
|
|
sv = newSVpvn (dec->cur, len); |
860 |
|
|
dec->cur += len; |
861 |
root |
1.25 |
|
862 |
|
|
if (ecb_expect_false (dec->stringref) |
863 |
|
|
&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
864 |
|
|
av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
865 |
root |
1.1 |
} |
866 |
|
|
|
867 |
|
|
if (utf8) |
868 |
root |
1.38 |
{ |
869 |
|
|
if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
870 |
|
|
if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
871 |
|
|
ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
872 |
|
|
|
873 |
|
|
SvUTF8_on (sv); |
874 |
|
|
} |
875 |
root |
1.1 |
|
876 |
|
|
return sv; |
877 |
|
|
|
878 |
|
|
fail: |
879 |
root |
1.6 |
SvREFCNT_dec (sv); |
880 |
root |
1.1 |
return &PL_sv_undef; |
881 |
|
|
} |
882 |
|
|
|
883 |
|
|
static SV * |
884 |
root |
1.3 |
decode_tagged (dec_t *dec) |
885 |
|
|
{ |
886 |
root |
1.19 |
SV *sv = 0; |
887 |
root |
1.3 |
UV tag = decode_uint (dec); |
888 |
root |
1.19 |
|
889 |
|
|
WANT (1); |
890 |
root |
1.3 |
|
891 |
root |
1.18 |
switch (tag) |
892 |
|
|
{ |
893 |
|
|
case CBOR_TAG_MAGIC: |
894 |
root |
1.20 |
sv = decode_sv (dec); |
895 |
|
|
break; |
896 |
root |
1.18 |
|
897 |
|
|
case CBOR_TAG_INDIRECTION: |
898 |
root |
1.20 |
sv = newRV_noinc (decode_sv (dec)); |
899 |
|
|
break; |
900 |
|
|
|
901 |
|
|
case CBOR_TAG_STRINGREF_NAMESPACE: |
902 |
|
|
{ |
903 |
|
|
ENTER; SAVETMPS; |
904 |
|
|
|
905 |
|
|
SAVESPTR (dec->stringref); |
906 |
|
|
dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
907 |
|
|
|
908 |
|
|
sv = decode_sv (dec); |
909 |
|
|
|
910 |
|
|
FREETMPS; LEAVE; |
911 |
|
|
} |
912 |
|
|
break; |
913 |
|
|
|
914 |
|
|
case CBOR_TAG_STRINGREF: |
915 |
|
|
{ |
916 |
root |
1.35 |
if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
917 |
root |
1.20 |
ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
918 |
|
|
|
919 |
|
|
UV idx = decode_uint (dec); |
920 |
|
|
|
921 |
|
|
if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
922 |
|
|
ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
923 |
|
|
|
924 |
|
|
sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
925 |
|
|
} |
926 |
|
|
break; |
927 |
root |
1.11 |
|
928 |
root |
1.19 |
case CBOR_TAG_VALUE_SHAREABLE: |
929 |
|
|
{ |
930 |
|
|
if (ecb_expect_false (!dec->shareable)) |
931 |
|
|
dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
932 |
|
|
|
933 |
root |
1.37 |
if (dec->cbor.flags & F_ALLOW_CYCLES) |
934 |
|
|
{ |
935 |
|
|
sv = newSV (0); |
936 |
|
|
av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
937 |
root |
1.18 |
|
938 |
root |
1.37 |
SV *osv = decode_sv (dec); |
939 |
|
|
sv_setsv (sv, osv); |
940 |
|
|
SvREFCNT_dec_NN (osv); |
941 |
|
|
} |
942 |
|
|
else |
943 |
|
|
{ |
944 |
|
|
av_push (dec->shareable, &PL_sv_undef); |
945 |
|
|
int idx = AvFILLp (dec->shareable); |
946 |
|
|
sv = decode_sv (dec); |
947 |
|
|
av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
948 |
|
|
} |
949 |
root |
1.19 |
} |
950 |
root |
1.20 |
break; |
951 |
root |
1.18 |
|
952 |
|
|
case CBOR_TAG_VALUE_SHAREDREF: |
953 |
root |
1.17 |
{ |
954 |
root |
1.35 |
if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
955 |
root |
1.19 |
ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
956 |
root |
1.18 |
|
957 |
root |
1.19 |
UV idx = decode_uint (dec); |
958 |
|
|
|
959 |
root |
1.20 |
if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
960 |
root |
1.18 |
ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
961 |
|
|
|
962 |
root |
1.20 |
sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
963 |
root |
1.37 |
|
964 |
|
|
if (sv == &PL_sv_undef) |
965 |
|
|
ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
966 |
root |
1.17 |
} |
967 |
root |
1.20 |
break; |
968 |
root |
1.17 |
|
969 |
root |
1.18 |
case CBOR_TAG_PERL_OBJECT: |
970 |
|
|
{ |
971 |
root |
1.19 |
sv = decode_sv (dec); |
972 |
|
|
|
973 |
root |
1.18 |
if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
974 |
|
|
ERR ("corrupted CBOR data (non-array perl object)"); |
975 |
|
|
|
976 |
|
|
AV *av = (AV *)SvRV (sv); |
977 |
|
|
int len = av_len (av) + 1; |
978 |
|
|
HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
979 |
|
|
|
980 |
|
|
if (!stash) |
981 |
|
|
ERR ("cannot decode perl-object (package does not exist)"); |
982 |
|
|
|
983 |
|
|
GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
984 |
|
|
|
985 |
|
|
if (!method) |
986 |
|
|
ERR ("cannot decode perl-object (package does not have a THAW method)"); |
987 |
|
|
|
988 |
|
|
dSP; |
989 |
|
|
|
990 |
|
|
ENTER; SAVETMPS; PUSHMARK (SP); |
991 |
|
|
EXTEND (SP, len + 1); |
992 |
|
|
// we re-bless the reference to get overload and other niceties right |
993 |
|
|
PUSHs (*av_fetch (av, 0, 1)); |
994 |
|
|
PUSHs (sv_cbor); |
995 |
|
|
|
996 |
|
|
int i; |
997 |
|
|
|
998 |
|
|
for (i = 1; i < len; ++i) |
999 |
|
|
PUSHs (*av_fetch (av, i, 1)); |
1000 |
|
|
|
1001 |
|
|
PUTBACK; |
1002 |
|
|
call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
1003 |
|
|
SPAGAIN; |
1004 |
|
|
|
1005 |
|
|
if (SvTRUE (ERRSV)) |
1006 |
|
|
{ |
1007 |
|
|
FREETMPS; LEAVE; |
1008 |
|
|
ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
1009 |
|
|
} |
1010 |
|
|
|
1011 |
|
|
SvREFCNT_dec (sv); |
1012 |
|
|
sv = SvREFCNT_inc (POPs); |
1013 |
root |
1.11 |
|
1014 |
root |
1.18 |
PUTBACK; |
1015 |
root |
1.11 |
|
1016 |
root |
1.18 |
FREETMPS; LEAVE; |
1017 |
|
|
} |
1018 |
root |
1.20 |
break; |
1019 |
root |
1.9 |
|
1020 |
root |
1.18 |
default: |
1021 |
|
|
{ |
1022 |
root |
1.19 |
sv = decode_sv (dec); |
1023 |
|
|
|
1024 |
root |
1.27 |
dSP; |
1025 |
|
|
ENTER; SAVETMPS; PUSHMARK (SP); |
1026 |
|
|
EXTEND (SP, 2); |
1027 |
|
|
PUSHs (newSVuv (tag)); |
1028 |
|
|
PUSHs (sv); |
1029 |
|
|
|
1030 |
|
|
PUTBACK; |
1031 |
|
|
int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
1032 |
|
|
SPAGAIN; |
1033 |
|
|
|
1034 |
|
|
if (SvTRUE (ERRSV)) |
1035 |
|
|
{ |
1036 |
|
|
FREETMPS; LEAVE; |
1037 |
|
|
ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
1038 |
|
|
} |
1039 |
|
|
|
1040 |
|
|
if (count) |
1041 |
|
|
{ |
1042 |
|
|
SvREFCNT_dec (sv); |
1043 |
|
|
sv = SvREFCNT_inc (POPs); |
1044 |
|
|
} |
1045 |
|
|
else |
1046 |
|
|
{ |
1047 |
|
|
AV *av = newAV (); |
1048 |
|
|
av_push (av, newSVuv (tag)); |
1049 |
|
|
av_push (av, sv); |
1050 |
|
|
|
1051 |
|
|
HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1052 |
|
|
? cbor_tagged_stash |
1053 |
|
|
: gv_stashpv ("CBOR::XS::Tagged" , 1); |
1054 |
|
|
sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
1055 |
|
|
} |
1056 |
root |
1.7 |
|
1057 |
root |
1.27 |
PUTBACK; |
1058 |
|
|
|
1059 |
|
|
FREETMPS; LEAVE; |
1060 |
root |
1.18 |
} |
1061 |
root |
1.20 |
break; |
1062 |
root |
1.11 |
} |
1063 |
root |
1.9 |
|
1064 |
root |
1.20 |
return sv; |
1065 |
|
|
|
1066 |
root |
1.9 |
fail: |
1067 |
|
|
SvREFCNT_dec (sv); |
1068 |
|
|
return &PL_sv_undef; |
1069 |
root |
1.3 |
} |
1070 |
|
|
|
1071 |
|
|
static SV * |
1072 |
root |
1.1 |
decode_sv (dec_t *dec) |
1073 |
|
|
{ |
1074 |
|
|
WANT (1); |
1075 |
|
|
|
1076 |
root |
1.35 |
switch (*dec->cur >> MAJOR_SHIFT) |
1077 |
root |
1.1 |
{ |
1078 |
root |
1.35 |
case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
1079 |
|
|
case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
1080 |
|
|
case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
1081 |
|
|
case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
1082 |
|
|
case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
1083 |
|
|
case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
1084 |
|
|
case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
1085 |
|
|
|
1086 |
|
|
case MAJOR_MISC >> MAJOR_SHIFT: |
1087 |
|
|
switch (*dec->cur++ & MINOR_MASK) |
1088 |
root |
1.1 |
{ |
1089 |
root |
1.35 |
case SIMPLE_FALSE: |
1090 |
root |
1.1 |
#if CBOR_SLOW |
1091 |
root |
1.10 |
types_false = get_bool ("Types::Serialiser::false"); |
1092 |
root |
1.1 |
#endif |
1093 |
root |
1.10 |
return newSVsv (types_false); |
1094 |
root |
1.35 |
case SIMPLE_TRUE: |
1095 |
root |
1.1 |
#if CBOR_SLOW |
1096 |
root |
1.10 |
types_true = get_bool ("Types::Serialiser::true"); |
1097 |
root |
1.1 |
#endif |
1098 |
root |
1.10 |
return newSVsv (types_true); |
1099 |
root |
1.35 |
case SIMPLE_NULL: |
1100 |
root |
1.1 |
return newSVsv (&PL_sv_undef); |
1101 |
root |
1.35 |
case SIMPLE_UNDEF: |
1102 |
root |
1.10 |
#if CBOR_SLOW |
1103 |
|
|
types_error = get_bool ("Types::Serialiser::error"); |
1104 |
|
|
#endif |
1105 |
|
|
return newSVsv (types_error); |
1106 |
root |
1.1 |
|
1107 |
root |
1.35 |
case MISC_FLOAT16: |
1108 |
root |
1.2 |
{ |
1109 |
|
|
WANT (2); |
1110 |
|
|
|
1111 |
|
|
uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1112 |
|
|
dec->cur += 2; |
1113 |
|
|
|
1114 |
|
|
return newSVnv (ecb_binary16_to_float (fp)); |
1115 |
|
|
} |
1116 |
root |
1.1 |
|
1117 |
root |
1.35 |
case MISC_FLOAT32: |
1118 |
root |
1.1 |
{ |
1119 |
|
|
uint32_t fp; |
1120 |
|
|
WANT (4); |
1121 |
|
|
memcpy (&fp, dec->cur, 4); |
1122 |
|
|
dec->cur += 4; |
1123 |
|
|
|
1124 |
|
|
if (!ecb_big_endian ()) |
1125 |
|
|
fp = ecb_bswap32 (fp); |
1126 |
|
|
|
1127 |
|
|
return newSVnv (ecb_binary32_to_float (fp)); |
1128 |
|
|
} |
1129 |
|
|
|
1130 |
root |
1.35 |
case MISC_FLOAT64: |
1131 |
root |
1.1 |
{ |
1132 |
|
|
uint64_t fp; |
1133 |
|
|
WANT (8); |
1134 |
|
|
memcpy (&fp, dec->cur, 8); |
1135 |
|
|
dec->cur += 8; |
1136 |
|
|
|
1137 |
|
|
if (!ecb_big_endian ()) |
1138 |
|
|
fp = ecb_bswap64 (fp); |
1139 |
|
|
|
1140 |
|
|
return newSVnv (ecb_binary64_to_double (fp)); |
1141 |
|
|
} |
1142 |
|
|
|
1143 |
root |
1.35 |
// 0..19 unassigned simple |
1144 |
root |
1.40 |
// 24 reserved + unassigned simple (reserved values are not encodable) |
1145 |
|
|
// 28-30 unassigned misc |
1146 |
|
|
// 31 break code |
1147 |
root |
1.1 |
default: |
1148 |
root |
1.40 |
ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
1149 |
root |
1.1 |
} |
1150 |
|
|
|
1151 |
|
|
break; |
1152 |
|
|
} |
1153 |
|
|
|
1154 |
|
|
fail: |
1155 |
|
|
return &PL_sv_undef; |
1156 |
|
|
} |
1157 |
|
|
|
1158 |
|
|
static SV * |
1159 |
|
|
decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1160 |
|
|
{ |
1161 |
root |
1.18 |
dec_t dec = { }; |
1162 |
root |
1.1 |
SV *sv; |
1163 |
root |
1.16 |
STRLEN len; |
1164 |
|
|
char *data = SvPVbyte (string, len); |
1165 |
root |
1.1 |
|
1166 |
root |
1.16 |
if (len > cbor->max_size && cbor->max_size) |
1167 |
|
|
croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1168 |
|
|
(unsigned long)len, (unsigned long)cbor->max_size); |
1169 |
root |
1.1 |
|
1170 |
|
|
dec.cbor = *cbor; |
1171 |
root |
1.16 |
dec.cur = (U8 *)data; |
1172 |
|
|
dec.end = (U8 *)data + len; |
1173 |
root |
1.1 |
|
1174 |
|
|
sv = decode_sv (&dec); |
1175 |
|
|
|
1176 |
|
|
if (offset_return) |
1177 |
|
|
*offset_return = dec.cur; |
1178 |
|
|
|
1179 |
|
|
if (!(offset_return || !sv)) |
1180 |
root |
1.2 |
if (dec.cur != dec.end && !dec.err) |
1181 |
|
|
dec.err = "garbage after CBOR object"; |
1182 |
|
|
|
1183 |
|
|
if (dec.err) |
1184 |
root |
1.1 |
{ |
1185 |
root |
1.39 |
if (dec.shareable) |
1186 |
|
|
{ |
1187 |
|
|
// need to break cyclic links, which whould all be in shareable |
1188 |
|
|
int i; |
1189 |
|
|
SV **svp; |
1190 |
|
|
|
1191 |
|
|
for (i = av_len (dec.shareable) + 1; i--; ) |
1192 |
|
|
if ((svp = av_fetch (dec.shareable, i, 0))) |
1193 |
|
|
sv_setsv (*svp, &PL_sv_undef); |
1194 |
|
|
} |
1195 |
|
|
|
1196 |
root |
1.2 |
SvREFCNT_dec (sv); |
1197 |
root |
1.16 |
croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1198 |
root |
1.1 |
} |
1199 |
|
|
|
1200 |
|
|
sv = sv_2mortal (sv); |
1201 |
|
|
|
1202 |
|
|
return sv; |
1203 |
|
|
} |
1204 |
|
|
|
1205 |
|
|
///////////////////////////////////////////////////////////////////////////// |
1206 |
root |
1.40 |
// incremental parser |
1207 |
|
|
|
1208 |
|
|
#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
1209 |
|
|
|
1210 |
|
|
// returns 0 for notyet, 1 for success or error |
1211 |
|
|
static int |
1212 |
|
|
incr_parse (CBOR *self, SV *cborstr) |
1213 |
|
|
{ |
1214 |
|
|
STRLEN cur; |
1215 |
|
|
SvPV (cborstr, cur); |
1216 |
|
|
|
1217 |
|
|
while (ecb_expect_true (self->incr_need <= cur)) |
1218 |
|
|
{ |
1219 |
|
|
// table of integer count bytes |
1220 |
|
|
static I8 incr_len[MINOR_MASK + 1] = { |
1221 |
|
|
0, 0, 0, 0, 0, 0, 0, 0, |
1222 |
|
|
0, 0, 0, 0, 0, 0, 0, 0, |
1223 |
|
|
0, 0, 0, 0, 0, 0, 0, 0, |
1224 |
|
|
1, 2, 4, 8,-1,-1,-1,-2 |
1225 |
|
|
}; |
1226 |
|
|
|
1227 |
|
|
const U8 *p = SvPVX (cborstr) + self->incr_pos; |
1228 |
|
|
U8 m = *p & MINOR_MASK; |
1229 |
|
|
IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
1230 |
|
|
I8 ilen = incr_len[m]; |
1231 |
|
|
|
1232 |
|
|
self->incr_need = self->incr_pos + 1; |
1233 |
|
|
|
1234 |
|
|
if (ecb_expect_false (ilen < 0)) |
1235 |
|
|
{ |
1236 |
|
|
if (m != MINOR_INDEF) |
1237 |
|
|
return 1; // error |
1238 |
|
|
|
1239 |
|
|
if (*p == (MAJOR_MISC | MINOR_INDEF)) |
1240 |
|
|
{ |
1241 |
|
|
if (count >= 0) |
1242 |
|
|
return 1; // error |
1243 |
|
|
|
1244 |
|
|
count = 1; |
1245 |
|
|
} |
1246 |
|
|
else |
1247 |
|
|
{ |
1248 |
|
|
av_push (self->incr_count, newSViv (-1)); //TODO: nest |
1249 |
|
|
count = -1; |
1250 |
|
|
} |
1251 |
|
|
} |
1252 |
|
|
else |
1253 |
|
|
{ |
1254 |
|
|
self->incr_need += ilen; |
1255 |
|
|
if (ecb_expect_false (self->incr_need > cur)) |
1256 |
|
|
return 0; |
1257 |
|
|
|
1258 |
|
|
int major = *p >> MAJOR_SHIFT; |
1259 |
|
|
|
1260 |
|
|
switch (major) |
1261 |
|
|
{ |
1262 |
|
|
case MAJOR_BYTES >> MAJOR_SHIFT: |
1263 |
|
|
case MAJOR_TEXT >> MAJOR_SHIFT: |
1264 |
|
|
case MAJOR_ARRAY >> MAJOR_SHIFT: |
1265 |
|
|
case MAJOR_MAP >> MAJOR_SHIFT: |
1266 |
|
|
{ |
1267 |
|
|
UV len; |
1268 |
|
|
|
1269 |
|
|
if (ecb_expect_false (ilen)) |
1270 |
|
|
{ |
1271 |
|
|
len = 0; |
1272 |
|
|
|
1273 |
|
|
do { |
1274 |
|
|
len = (len << 8) | *++p; |
1275 |
|
|
} while (--ilen); |
1276 |
|
|
} |
1277 |
|
|
else |
1278 |
|
|
len = m; |
1279 |
|
|
|
1280 |
|
|
switch (major) |
1281 |
|
|
{ |
1282 |
|
|
case MAJOR_BYTES >> MAJOR_SHIFT: |
1283 |
|
|
case MAJOR_TEXT >> MAJOR_SHIFT: |
1284 |
|
|
self->incr_need += len; |
1285 |
|
|
if (ecb_expect_false (self->incr_need > cur)) |
1286 |
|
|
return 0; |
1287 |
|
|
|
1288 |
|
|
break; |
1289 |
|
|
|
1290 |
|
|
case MAJOR_MAP >> MAJOR_SHIFT: |
1291 |
|
|
len <<= 1; |
1292 |
|
|
case MAJOR_ARRAY >> MAJOR_SHIFT: |
1293 |
|
|
if (len) |
1294 |
|
|
{ |
1295 |
|
|
av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
1296 |
|
|
count = len + 1; |
1297 |
|
|
} |
1298 |
|
|
break; |
1299 |
|
|
} |
1300 |
|
|
} |
1301 |
|
|
} |
1302 |
|
|
} |
1303 |
|
|
|
1304 |
|
|
self->incr_pos = self->incr_need; |
1305 |
|
|
|
1306 |
|
|
if (count > 0) |
1307 |
|
|
{ |
1308 |
|
|
while (!--count) |
1309 |
|
|
{ |
1310 |
|
|
if (!AvFILLp (self->incr_count)) |
1311 |
|
|
return 1; // done |
1312 |
|
|
|
1313 |
|
|
SvREFCNT_dec_NN (av_pop (self->incr_count)); |
1314 |
|
|
count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
1315 |
|
|
} |
1316 |
|
|
|
1317 |
|
|
SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
1318 |
|
|
} |
1319 |
|
|
} |
1320 |
|
|
|
1321 |
|
|
return 0; |
1322 |
|
|
} |
1323 |
|
|
|
1324 |
|
|
|
1325 |
|
|
///////////////////////////////////////////////////////////////////////////// |
1326 |
root |
1.1 |
// XS interface functions |
1327 |
|
|
|
1328 |
|
|
MODULE = CBOR::XS PACKAGE = CBOR::XS |
1329 |
|
|
|
1330 |
|
|
BOOT: |
1331 |
|
|
{ |
1332 |
|
|
cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1333 |
root |
1.6 |
cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1334 |
root |
1.1 |
|
1335 |
root |
1.10 |
types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
1336 |
|
|
types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
1337 |
|
|
|
1338 |
|
|
types_true = get_bool ("Types::Serialiser::true" ); |
1339 |
|
|
types_false = get_bool ("Types::Serialiser::false"); |
1340 |
|
|
types_error = get_bool ("Types::Serialiser::error"); |
1341 |
root |
1.11 |
|
1342 |
root |
1.27 |
default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1343 |
|
|
|
1344 |
root |
1.11 |
sv_cbor = newSVpv ("CBOR", 0); |
1345 |
|
|
SvREADONLY_on (sv_cbor); |
1346 |
root |
1.1 |
} |
1347 |
|
|
|
1348 |
|
|
PROTOTYPES: DISABLE |
1349 |
|
|
|
1350 |
|
|
void CLONE (...) |
1351 |
|
|
CODE: |
1352 |
root |
1.10 |
cbor_stash = 0; |
1353 |
|
|
cbor_tagged_stash = 0; |
1354 |
|
|
types_error_stash = 0; |
1355 |
|
|
types_boolean_stash = 0; |
1356 |
root |
1.1 |
|
1357 |
|
|
void new (char *klass) |
1358 |
|
|
PPCODE: |
1359 |
|
|
{ |
1360 |
|
|
SV *pv = NEWSV (0, sizeof (CBOR)); |
1361 |
|
|
SvPOK_only (pv); |
1362 |
|
|
cbor_init ((CBOR *)SvPVX (pv)); |
1363 |
|
|
XPUSHs (sv_2mortal (sv_bless ( |
1364 |
|
|
newRV_noinc (pv), |
1365 |
|
|
strEQ (klass, "CBOR::XS") ? CBOR_STASH : gv_stashpv (klass, 1) |
1366 |
|
|
))); |
1367 |
|
|
} |
1368 |
|
|
|
1369 |
|
|
void shrink (CBOR *self, int enable = 1) |
1370 |
|
|
ALIAS: |
1371 |
|
|
shrink = F_SHRINK |
1372 |
|
|
allow_unknown = F_ALLOW_UNKNOWN |
1373 |
root |
1.18 |
allow_sharing = F_ALLOW_SHARING |
1374 |
root |
1.37 |
allow_cycles = F_ALLOW_CYCLES |
1375 |
root |
1.32 |
pack_strings = F_PACK_STRINGS |
1376 |
root |
1.38 |
validate_utf8 = F_VALIDATE_UTF8 |
1377 |
root |
1.1 |
PPCODE: |
1378 |
|
|
{ |
1379 |
|
|
if (enable) |
1380 |
|
|
self->flags |= ix; |
1381 |
|
|
else |
1382 |
|
|
self->flags &= ~ix; |
1383 |
|
|
|
1384 |
|
|
XPUSHs (ST (0)); |
1385 |
|
|
} |
1386 |
|
|
|
1387 |
|
|
void get_shrink (CBOR *self) |
1388 |
|
|
ALIAS: |
1389 |
|
|
get_shrink = F_SHRINK |
1390 |
|
|
get_allow_unknown = F_ALLOW_UNKNOWN |
1391 |
root |
1.18 |
get_allow_sharing = F_ALLOW_SHARING |
1392 |
root |
1.37 |
get_allow_cycles = F_ALLOW_CYCLES |
1393 |
root |
1.32 |
get_pack_strings = F_PACK_STRINGS |
1394 |
root |
1.38 |
get_validate_utf8 = F_VALIDATE_UTF8 |
1395 |
root |
1.1 |
PPCODE: |
1396 |
|
|
XPUSHs (boolSV (self->flags & ix)); |
1397 |
|
|
|
1398 |
|
|
void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1399 |
|
|
PPCODE: |
1400 |
|
|
self->max_depth = max_depth; |
1401 |
|
|
XPUSHs (ST (0)); |
1402 |
|
|
|
1403 |
|
|
U32 get_max_depth (CBOR *self) |
1404 |
|
|
CODE: |
1405 |
|
|
RETVAL = self->max_depth; |
1406 |
|
|
OUTPUT: |
1407 |
|
|
RETVAL |
1408 |
|
|
|
1409 |
|
|
void max_size (CBOR *self, U32 max_size = 0) |
1410 |
|
|
PPCODE: |
1411 |
|
|
self->max_size = max_size; |
1412 |
|
|
XPUSHs (ST (0)); |
1413 |
|
|
|
1414 |
|
|
int get_max_size (CBOR *self) |
1415 |
|
|
CODE: |
1416 |
|
|
RETVAL = self->max_size; |
1417 |
|
|
OUTPUT: |
1418 |
|
|
RETVAL |
1419 |
|
|
|
1420 |
root |
1.27 |
void filter (CBOR *self, SV *filter = 0) |
1421 |
|
|
PPCODE: |
1422 |
|
|
SvREFCNT_dec (self->filter); |
1423 |
|
|
self->filter = filter ? newSVsv (filter) : filter; |
1424 |
|
|
XPUSHs (ST (0)); |
1425 |
|
|
|
1426 |
|
|
SV *get_filter (CBOR *self) |
1427 |
|
|
CODE: |
1428 |
|
|
RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1429 |
|
|
OUTPUT: |
1430 |
|
|
RETVAL |
1431 |
|
|
|
1432 |
root |
1.1 |
void encode (CBOR *self, SV *scalar) |
1433 |
|
|
PPCODE: |
1434 |
|
|
PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1435 |
|
|
XPUSHs (scalar); |
1436 |
|
|
|
1437 |
|
|
void decode (CBOR *self, SV *cborstr) |
1438 |
|
|
PPCODE: |
1439 |
|
|
PUTBACK; cborstr = decode_cbor (cborstr, self, 0); SPAGAIN; |
1440 |
|
|
XPUSHs (cborstr); |
1441 |
|
|
|
1442 |
|
|
void decode_prefix (CBOR *self, SV *cborstr) |
1443 |
|
|
PPCODE: |
1444 |
|
|
{ |
1445 |
|
|
SV *sv; |
1446 |
|
|
char *offset; |
1447 |
|
|
PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
1448 |
|
|
EXTEND (SP, 2); |
1449 |
|
|
PUSHs (sv); |
1450 |
|
|
PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1451 |
|
|
} |
1452 |
|
|
|
1453 |
root |
1.41 |
void incr_parse (CBOR *self, SV *cborstr) |
1454 |
root |
1.42 |
ALIAS: |
1455 |
|
|
incr_parse_multiple = 1 |
1456 |
root |
1.40 |
PPCODE: |
1457 |
|
|
{ |
1458 |
|
|
if (SvUTF8 (cborstr)) |
1459 |
|
|
sv_utf8_downgrade (cborstr, 0); |
1460 |
|
|
|
1461 |
|
|
if (!self->incr_count) |
1462 |
|
|
{ |
1463 |
|
|
self->incr_count = newAV (); |
1464 |
|
|
self->incr_pos = 0; |
1465 |
|
|
self->incr_need = 1; |
1466 |
|
|
|
1467 |
|
|
av_push (self->incr_count, newSViv (1)); |
1468 |
|
|
} |
1469 |
|
|
|
1470 |
root |
1.41 |
do |
1471 |
root |
1.40 |
{ |
1472 |
|
|
if (!incr_parse (self, cborstr)) |
1473 |
|
|
{ |
1474 |
|
|
if (self->incr_need > self->max_size && self->max_size) |
1475 |
|
|
croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1476 |
|
|
(unsigned long)self->incr_need, (unsigned long)self->max_size); |
1477 |
|
|
|
1478 |
|
|
break; |
1479 |
|
|
} |
1480 |
|
|
|
1481 |
root |
1.41 |
SV *sv; |
1482 |
|
|
char *offset; |
1483 |
root |
1.40 |
|
1484 |
root |
1.41 |
PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
1485 |
|
|
XPUSHs (sv); |
1486 |
root |
1.40 |
|
1487 |
root |
1.41 |
sv_chop (cborstr, offset); |
1488 |
root |
1.40 |
|
1489 |
root |
1.41 |
av_clear (self->incr_count); |
1490 |
|
|
av_push (self->incr_count, newSViv (1)); |
1491 |
root |
1.40 |
|
1492 |
root |
1.41 |
self->incr_pos = 0; |
1493 |
|
|
self->incr_need = self->incr_pos + 1; |
1494 |
root |
1.40 |
} |
1495 |
root |
1.42 |
while (ix); |
1496 |
root |
1.40 |
} |
1497 |
|
|
|
1498 |
|
|
void incr_reset (CBOR *self) |
1499 |
|
|
CODE: |
1500 |
|
|
{ |
1501 |
|
|
SvREFCNT_dec (self->incr_count); |
1502 |
|
|
self->incr_count = 0; |
1503 |
|
|
} |
1504 |
|
|
|
1505 |
root |
1.27 |
void DESTROY (CBOR *self) |
1506 |
|
|
PPCODE: |
1507 |
|
|
cbor_free (self); |
1508 |
|
|
|
1509 |
root |
1.1 |
PROTOTYPES: ENABLE |
1510 |
|
|
|
1511 |
|
|
void encode_cbor (SV *scalar) |
1512 |
root |
1.36 |
ALIAS: |
1513 |
|
|
encode_cbor = 0 |
1514 |
|
|
encode_cbor_sharing = F_ALLOW_SHARING |
1515 |
root |
1.1 |
PPCODE: |
1516 |
|
|
{ |
1517 |
|
|
CBOR cbor; |
1518 |
|
|
cbor_init (&cbor); |
1519 |
root |
1.36 |
cbor.flags |= ix; |
1520 |
root |
1.1 |
PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1521 |
|
|
XPUSHs (scalar); |
1522 |
|
|
} |
1523 |
|
|
|
1524 |
|
|
void decode_cbor (SV *cborstr) |
1525 |
|
|
PPCODE: |
1526 |
|
|
{ |
1527 |
|
|
CBOR cbor; |
1528 |
|
|
cbor_init (&cbor); |
1529 |
|
|
PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1530 |
|
|
XPUSHs (cborstr); |
1531 |
|
|
} |
1532 |
|
|
|