… | |
… | |
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 | |
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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)) |
… | |
… | |
19 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
20 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
20 | #endif |
21 | #endif |
21 | #ifndef HvNAMEUTF8 |
22 | #ifndef HvNAMEUTF8 |
22 | # define HvNAMEUTF8(hv) 0 |
23 | # define HvNAMEUTF8(hv) 0 |
23 | #endif |
24 | #endif |
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25 | #ifndef SvREFCNT_dec_NN |
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26 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
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27 | #endif |
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28 | |
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29 | // known major and minor types |
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30 | enum cbor_type |
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31 | { |
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32 | MAJOR_SHIFT = 5, |
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33 | MINOR_MASK = 0x1f, |
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34 | |
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35 | MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
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36 | MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
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37 | MAJOR_BYTES = 2 << MAJOR_SHIFT, |
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38 | MAJOR_TEXT = 3 << MAJOR_SHIFT, |
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39 | MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
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40 | MAJOR_MAP = 5 << MAJOR_SHIFT, |
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41 | MAJOR_TAG = 6 << MAJOR_SHIFT, |
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42 | MAJOR_MISC = 7 << MAJOR_SHIFT, |
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43 | |
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44 | // INT/STRING/ARRAY/MAP subtypes |
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45 | LENGTH_EXT1 = 24, |
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46 | LENGTH_EXT2 = 25, |
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47 | LENGTH_EXT4 = 26, |
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48 | LENGTH_EXT8 = 27, |
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49 | |
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50 | // SIMPLE types (effectively MISC subtypes) |
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51 | SIMPLE_FALSE = 20, |
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52 | SIMPLE_TRUE = 21, |
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53 | SIMPLE_NULL = 22, |
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54 | SIMPLE_UNDEF = 23, |
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55 | |
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56 | // MISC subtype (unused) |
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57 | MISC_EXT1 = 24, |
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58 | MISC_FLOAT16 = 25, |
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59 | MISC_FLOAT32 = 26, |
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60 | MISC_FLOAT64 = 27, |
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61 | |
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62 | // BYTES/TEXT/ARRAY/MAP |
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63 | MINOR_INDEF = 31, |
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64 | }; |
24 | |
65 | |
25 | // known tags |
66 | // known tags |
26 | enum cbor_tag |
67 | enum cbor_tag |
27 | { |
68 | { |
28 | // inofficial extensions (pending iana registration) |
69 | // extensions |
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|
70 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
29 | CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object |
71 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
30 | CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object |
72 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
31 | CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing |
73 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
32 | CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing |
74 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
33 | CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref |
75 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
34 | CBOR_TAG_STRINGREF = 28, // http://cbor.schmorp.de/stringref |
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35 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
76 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
36 | |
77 | |
37 | // rfc7049 |
78 | // rfc7049 |
38 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
79 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
39 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
80 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
40 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
81 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
41 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
82 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
42 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
83 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
43 | CBOR_TAG_BIGFLOAT = 5, // array |
84 | CBOR_TAG_BIGFLOAT = 5, // array |
44 | |
85 | |
45 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
86 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
46 | CBOR_TAG_CONV_B64 = 22, // base64, any |
87 | CBOR_TAG_CONV_B64 = 22, // base64, any |
47 | CBOR_TAG_CONV_HEX = 23, // base16, any |
88 | CBOR_TAG_CONV_HEX = 23, // base16, any |
48 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
89 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
49 | |
90 | |
50 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
91 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
51 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
92 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
52 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
93 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
53 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
94 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
54 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
95 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
55 | |
96 | |
56 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
97 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
57 | }; |
98 | }; |
58 | |
99 | |
59 | #define F_SHRINK 0x00000001UL |
100 | #define F_SHRINK 0x00000001UL |
60 | #define F_ALLOW_UNKNOWN 0x00000002UL |
101 | #define F_ALLOW_UNKNOWN 0x00000002UL |
61 | #define F_ALLOW_SHARING 0x00000004UL //TODO |
102 | #define F_ALLOW_SHARING 0x00000004UL |
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|
103 | #define F_ALLOW_CYCLES 0x00000008UL |
62 | #define F_DEDUP_STRINGS 0x00000008UL //TODO |
104 | #define F_PACK_STRINGS 0x00000010UL |
63 | #define F_DEDUP_KEYS 0x00000010UL //TODO |
105 | #define F_TEXT_KEYS 0x00000020UL |
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106 | #define F_TEXT_STRINGS 0x00000040UL |
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107 | #define F_VALIDATE_UTF8 0x00000080UL |
64 | |
108 | |
65 | #define INIT_SIZE 32 // initial scalar size to be allocated |
109 | #define INIT_SIZE 32 // initial scalar size to be allocated |
66 | |
110 | |
67 | #define SB do { |
111 | #define SB do { |
68 | #define SE } while (0) |
112 | #define SE } while (0) |
… | |
… | |
80 | # define CBOR_SLOW 0 |
124 | # define CBOR_SLOW 0 |
81 | # define CBOR_STASH cbor_stash |
125 | # define CBOR_STASH cbor_stash |
82 | #endif |
126 | #endif |
83 | |
127 | |
84 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
128 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
85 | static SV *types_true, *types_false, *types_error, *sv_cbor; |
129 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
86 | |
130 | |
87 | typedef struct { |
131 | typedef struct { |
88 | U32 flags; |
132 | U32 flags; |
89 | U32 max_depth; |
133 | U32 max_depth; |
90 | STRLEN max_size; |
134 | STRLEN max_size; |
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135 | SV *filter; |
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136 | |
|
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137 | // for the incremental parser |
|
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138 | STRLEN incr_pos; // the current offset into the text |
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139 | STRLEN incr_need; // minimum bytes needed to decode |
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140 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
91 | } CBOR; |
141 | } CBOR; |
92 | |
142 | |
93 | ecb_inline void |
143 | ecb_inline void |
94 | cbor_init (CBOR *cbor) |
144 | cbor_init (CBOR *cbor) |
95 | { |
145 | { |
96 | Zero (cbor, 1, CBOR); |
146 | Zero (cbor, 1, CBOR); |
97 | cbor->max_depth = 512; |
147 | cbor->max_depth = 512; |
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148 | } |
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149 | |
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150 | ecb_inline void |
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151 | cbor_free (CBOR *cbor) |
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152 | { |
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153 | SvREFCNT_dec (cbor->filter); |
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154 | SvREFCNT_dec (cbor->incr_count); |
98 | } |
155 | } |
99 | |
156 | |
100 | ///////////////////////////////////////////////////////////////////////////// |
157 | ///////////////////////////////////////////////////////////////////////////// |
101 | // utility functions |
158 | // utility functions |
102 | |
159 | |
… | |
… | |
122 | SvPV_shrink_to_cur (sv); |
179 | SvPV_shrink_to_cur (sv); |
123 | #elif defined (SvPV_renew) |
180 | #elif defined (SvPV_renew) |
124 | SvPV_renew (sv, SvCUR (sv) + 1); |
181 | SvPV_renew (sv, SvCUR (sv) + 1); |
125 | #endif |
182 | #endif |
126 | } |
183 | } |
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184 | } |
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185 | |
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186 | // minimum length of a string to be registered for stringref |
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187 | ecb_inline int |
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188 | minimum_string_length (UV idx) |
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189 | { |
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190 | return idx > 23 |
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191 | ? idx > 0xffU |
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192 | ? idx > 0xffffU |
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193 | ? idx > 0xffffffffU |
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194 | ? 11 |
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195 | : 7 |
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196 | : 5 |
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197 | : 4 |
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198 | : 3; |
127 | } |
199 | } |
128 | |
200 | |
129 | ///////////////////////////////////////////////////////////////////////////// |
201 | ///////////////////////////////////////////////////////////////////////////// |
130 | // encoder |
202 | // encoder |
131 | |
203 | |
… | |
… | |
165 | static void |
237 | static void |
166 | encode_uint (enc_t *enc, int major, UV len) |
238 | encode_uint (enc_t *enc, int major, UV len) |
167 | { |
239 | { |
168 | need (enc, 9); |
240 | need (enc, 9); |
169 | |
241 | |
170 | if (len < 24) |
242 | if (ecb_expect_true (len < LENGTH_EXT1)) |
171 | *enc->cur++ = major | len; |
243 | *enc->cur++ = major | len; |
172 | else if (len <= 0xff) |
244 | else if (ecb_expect_true (len <= 0xffU)) |
173 | { |
245 | { |
174 | *enc->cur++ = major | 24; |
246 | *enc->cur++ = major | LENGTH_EXT1; |
175 | *enc->cur++ = len; |
247 | *enc->cur++ = len; |
176 | } |
248 | } |
177 | else if (len <= 0xffff) |
249 | else if (len <= 0xffffU) |
178 | { |
250 | { |
179 | *enc->cur++ = major | 25; |
251 | *enc->cur++ = major | LENGTH_EXT2; |
180 | *enc->cur++ = len >> 8; |
252 | *enc->cur++ = len >> 8; |
181 | *enc->cur++ = len; |
253 | *enc->cur++ = len; |
182 | } |
254 | } |
183 | else if (len <= 0xffffffff) |
255 | else if (len <= 0xffffffffU) |
184 | { |
256 | { |
185 | *enc->cur++ = major | 26; |
257 | *enc->cur++ = major | LENGTH_EXT4; |
186 | *enc->cur++ = len >> 24; |
258 | *enc->cur++ = len >> 24; |
187 | *enc->cur++ = len >> 16; |
259 | *enc->cur++ = len >> 16; |
188 | *enc->cur++ = len >> 8; |
260 | *enc->cur++ = len >> 8; |
189 | *enc->cur++ = len; |
261 | *enc->cur++ = len; |
190 | } |
262 | } |
191 | else |
263 | else |
192 | { |
264 | { |
193 | *enc->cur++ = major | 27; |
265 | *enc->cur++ = major | LENGTH_EXT8; |
194 | *enc->cur++ = len >> 56; |
266 | *enc->cur++ = len >> 56; |
195 | *enc->cur++ = len >> 48; |
267 | *enc->cur++ = len >> 48; |
196 | *enc->cur++ = len >> 40; |
268 | *enc->cur++ = len >> 40; |
197 | *enc->cur++ = len >> 32; |
269 | *enc->cur++ = len >> 32; |
198 | *enc->cur++ = len >> 24; |
270 | *enc->cur++ = len >> 24; |
… | |
… | |
200 | *enc->cur++ = len >> 8; |
272 | *enc->cur++ = len >> 8; |
201 | *enc->cur++ = len; |
273 | *enc->cur++ = len; |
202 | } |
274 | } |
203 | } |
275 | } |
204 | |
276 | |
205 | static void |
277 | ecb_inline void |
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278 | encode_tag (enc_t *enc, UV tag) |
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279 | { |
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280 | encode_uint (enc, MAJOR_TAG, tag); |
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281 | } |
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282 | |
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283 | // exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
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284 | ecb_noinline static void |
206 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
285 | encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
207 | { |
286 | { |
208 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
287 | STRLEN ulen = len; |
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288 | U8 *p, *pend = (U8 *)str + len; |
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289 | |
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290 | for (p = (U8 *)str; p < pend; ++p) |
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291 | ulen += *p >> 7; // count set high bits |
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292 | |
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293 | encode_uint (enc, MAJOR_TEXT, ulen); |
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294 | |
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295 | need (enc, ulen); |
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296 | for (p = (U8 *)str; p < pend; ++p) |
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297 | if (*p < 0x80) |
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298 | *enc->cur++ = *p; |
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299 | else |
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300 | { |
|
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301 | *enc->cur++ = 0xc0 + (*p >> 6); |
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302 | *enc->cur++ = 0x80 + (*p & 63); |
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303 | } |
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304 | } |
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305 | |
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306 | ecb_inline void |
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307 | encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
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308 | { |
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309 | if (ecb_expect_false (upgrade_utf8)) |
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310 | if (!utf8) |
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311 | { |
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312 | encode_str_utf8 (enc, utf8, str, len); |
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313 | return; |
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314 | } |
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315 | |
|
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316 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
209 | need (enc, len); |
317 | need (enc, len); |
210 | memcpy (enc->cur, str, len); |
318 | memcpy (enc->cur, str, len); |
211 | enc->cur += len; |
319 | enc->cur += len; |
212 | } |
320 | } |
213 | |
321 | |
214 | ecb_inline void |
322 | ecb_inline void |
215 | encode_tag (enc_t *enc, UV tag) |
323 | encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
216 | { |
324 | { |
217 | encode_uint (enc, 0xc0, tag); |
325 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
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326 | { |
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327 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
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328 | |
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329 | if (SvOK (*svp)) |
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330 | { |
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331 | // already registered, use stringref |
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332 | encode_tag (enc, CBOR_TAG_STRINGREF); |
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333 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
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334 | return; |
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335 | } |
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336 | else if (len >= minimum_string_length (enc->stringref_idx)) |
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337 | { |
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338 | // register only |
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339 | sv_setuv (*svp, enc->stringref_idx); |
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340 | ++enc->stringref_idx; |
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341 | } |
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342 | } |
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343 | |
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344 | encode_str (enc, upgrade_utf8, utf8, str, len); |
218 | } |
345 | } |
219 | |
346 | |
220 | static void encode_sv (enc_t *enc, SV *sv); |
347 | static void encode_sv (enc_t *enc, SV *sv); |
221 | |
348 | |
222 | static void |
349 | static void |
… | |
… | |
227 | if (enc->depth >= enc->cbor.max_depth) |
354 | if (enc->depth >= enc->cbor.max_depth) |
228 | croak (ERR_NESTING_EXCEEDED); |
355 | croak (ERR_NESTING_EXCEEDED); |
229 | |
356 | |
230 | ++enc->depth; |
357 | ++enc->depth; |
231 | |
358 | |
232 | encode_uint (enc, 0x80, len + 1); |
359 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
233 | |
360 | |
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361 | if (SvMAGICAL (av)) |
234 | for (i = 0; i <= len; ++i) |
362 | for (i = 0; i <= len; ++i) |
235 | { |
363 | { |
236 | SV **svp = av_fetch (av, i, 0); |
364 | SV **svp = av_fetch (av, i, 0); |
237 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
365 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
238 | } |
366 | } |
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367 | else |
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368 | for (i = 0; i <= len; ++i) |
|
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369 | { |
|
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370 | SV *sv = AvARRAY (av)[i]; |
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371 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
|
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372 | } |
239 | |
373 | |
240 | --enc->depth; |
374 | --enc->depth; |
241 | } |
|
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242 | |
|
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243 | ecb_inline void |
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244 | encode_he (enc_t *enc, HE *he) |
|
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245 | { |
|
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246 | if (HeKLEN (he) == HEf_SVKEY) |
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247 | encode_sv (enc, HeSVKEY (he)); |
|
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248 | else |
|
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249 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
|
|
250 | } |
375 | } |
251 | |
376 | |
252 | static void |
377 | static void |
253 | encode_hv (enc_t *enc, HV *hv) |
378 | encode_hv (enc_t *enc, HV *hv) |
254 | { |
379 | { |
… | |
… | |
261 | |
386 | |
262 | int pairs = hv_iterinit (hv); |
387 | int pairs = hv_iterinit (hv); |
263 | int mg = SvMAGICAL (hv); |
388 | int mg = SvMAGICAL (hv); |
264 | |
389 | |
265 | if (mg) |
390 | if (mg) |
266 | encode_ch (enc, 0xa0 | 31); |
391 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
267 | else |
392 | else |
268 | encode_uint (enc, 0xa0, pairs); |
393 | encode_uint (enc, MAJOR_MAP, pairs); |
269 | |
394 | |
270 | while ((he = hv_iternext (hv))) |
395 | while ((he = hv_iternext (hv))) |
271 | { |
396 | { |
272 | if (ecb_expect_false (enc->cbor.flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS))) |
|
|
273 | { |
|
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274 | SV **svp; |
|
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275 | |
|
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276 | if (HeKLEN (he) == HEf_SVKEY) |
397 | if (HeKLEN (he) == HEf_SVKEY) |
277 | svp = hv_fetch_ent (enc->stringref[!! SvUTF8 (HeSVKEY (he))], HeSVKEY (he) , 1, 0);//TODO return HE :/ |
398 | encode_sv (enc, HeSVKEY (he)); |
278 | else |
|
|
279 | svp = hv_fetch (enc->stringref[!! HeKUTF8 (he) ], HeKEY (he), HeKLEN (he), 1); |
|
|
280 | |
|
|
281 | if (SvOK (*svp)) |
|
|
282 | { |
|
|
283 | encode_tag (enc, CBOR_TAG_STRINGREF); |
|
|
284 | encode_uint (enc, 0x00, SvUV (*svp)); |
|
|
285 | } |
|
|
286 | else |
|
|
287 | { |
|
|
288 | sv_setuv (*svp, enc->stringref_idx); |
|
|
289 | ++enc->stringref_idx; |
|
|
290 | encode_he (enc, he); |
|
|
291 | } |
|
|
292 | } |
|
|
293 | else |
399 | else |
294 | encode_he (enc, he); |
400 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
295 | |
401 | |
296 | 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)); |
297 | } |
403 | } |
298 | |
404 | |
299 | if (mg) |
405 | if (mg) |
300 | encode_ch (enc, 0xe0 | 31); |
406 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
301 | |
407 | |
302 | --enc->depth; |
408 | --enc->depth; |
303 | } |
409 | } |
304 | |
410 | |
305 | // encode objects, arrays and special \0=false and \1=true values. |
411 | // encode objects, arrays and special \0=false and \1=true values. |
306 | static void |
412 | static void |
307 | encode_rv (enc_t *enc, SV *sv) |
413 | encode_rv (enc_t *enc, SV *sv) |
308 | { |
414 | { |
309 | SvGETMAGIC (sv); |
415 | SvGETMAGIC (sv); |
310 | |
|
|
311 | if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING) |
|
|
312 | && ecb_expect_false (SvREFCNT (sv) > 1)) |
|
|
313 | { |
|
|
314 | if (!enc->shareable) |
|
|
315 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
316 | |
|
|
317 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
|
|
318 | |
|
|
319 | if (SvOK (*svp)) |
|
|
320 | { |
|
|
321 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
322 | encode_uint (enc, 0x00, SvUV (*svp)); |
|
|
323 | return; |
|
|
324 | } |
|
|
325 | else |
|
|
326 | { |
|
|
327 | sv_setuv (*svp, enc->shareable_idx); |
|
|
328 | ++enc->shareable_idx; |
|
|
329 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
330 | } |
|
|
331 | } |
|
|
332 | |
416 | |
333 | svtype svt = SvTYPE (sv); |
417 | svtype svt = SvTYPE (sv); |
334 | |
418 | |
335 | if (ecb_expect_false (SvOBJECT (sv))) |
419 | if (ecb_expect_false (SvOBJECT (sv))) |
336 | { |
420 | { |
… | |
… | |
343 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
427 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
344 | ? cbor_tagged_stash |
428 | ? cbor_tagged_stash |
345 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
429 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
346 | |
430 | |
347 | HV *stash = SvSTASH (sv); |
431 | HV *stash = SvSTASH (sv); |
348 | GV *method; |
|
|
349 | |
432 | |
350 | if (stash == boolean_stash) |
433 | if (stash == boolean_stash) |
351 | 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 | } |
352 | else if (stash == error_stash) |
438 | else if (stash == error_stash) |
353 | encode_ch (enc, 0xe0 | 23); |
439 | { |
|
|
440 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
|
|
441 | return; |
|
|
442 | } |
354 | else if (stash == tagged_stash) |
443 | else if (stash == tagged_stash) |
355 | { |
444 | { |
356 | if (svt != SVt_PVAV) |
445 | if (svt != SVt_PVAV) |
357 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
446 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
358 | |
447 | |
359 | encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
448 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
360 | 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)) |
361 | } |
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 | |
362 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
482 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
363 | { |
483 | { |
364 | dSP; |
484 | dSP; |
365 | |
485 | |
366 | ENTER; SAVETMPS; PUSHMARK (SP); |
486 | ENTER; SAVETMPS; |
|
|
487 | PUSHMARK (SP); |
367 | // 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 |
368 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
489 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
369 | |
490 | |
370 | PUTBACK; |
491 | PUTBACK; |
371 | // G_SCALAR ensures that return value is 1 |
492 | // G_SCALAR ensures that return value is 1 |
… | |
… | |
384 | } |
505 | } |
385 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
506 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
386 | { |
507 | { |
387 | dSP; |
508 | dSP; |
388 | |
509 | |
389 | ENTER; SAVETMPS; PUSHMARK (SP); |
510 | ENTER; SAVETMPS; |
|
|
511 | SAVESTACK_POS (); |
|
|
512 | PUSHMARK (SP); |
390 | EXTEND (SP, 2); |
513 | EXTEND (SP, 2); |
391 | // 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 |
392 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
515 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
393 | PUSHs (sv_cbor); |
516 | PUSHs (sv_cbor); |
394 | |
517 | |
… | |
… | |
399 | // catch this surprisingly common error |
522 | // catch this surprisingly common error |
400 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
523 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
401 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
524 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
402 | |
525 | |
403 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
526 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
404 | encode_uint (enc, 0x80, count + 1); |
527 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
405 | encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
528 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
406 | |
529 | |
407 | while (count) |
530 | while (count) |
408 | encode_sv (enc, SP[1 - count--]); |
531 | encode_sv (enc, SP[1 - count--]); |
409 | |
532 | |
410 | PUTBACK; |
533 | PUTBACK; |
… | |
… | |
431 | { |
554 | { |
432 | double nv = SvNVX (sv); |
555 | double nv = SvNVX (sv); |
433 | |
556 | |
434 | need (enc, 9); |
557 | need (enc, 9); |
435 | |
558 | |
436 | if (ecb_expect_false (nv == (U32)nv)) |
559 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
437 | encode_uint (enc, 0x00, (U32)nv); |
560 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
438 | //TODO: maybe I32? |
561 | //TODO: maybe I32? |
439 | else if (ecb_expect_false (nv == (float)nv)) |
562 | else if (ecb_expect_false (nv == (float)nv)) |
440 | { |
563 | { |
441 | uint32_t fp = ecb_float_to_binary32 (nv); |
564 | uint32_t fp = ecb_float_to_binary32 (nv); |
442 | |
565 | |
443 | *enc->cur++ = 0xe0 | 26; |
566 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
444 | |
567 | |
445 | if (!ecb_big_endian ()) |
568 | if (!ecb_big_endian ()) |
446 | fp = ecb_bswap32 (fp); |
569 | fp = ecb_bswap32 (fp); |
447 | |
570 | |
448 | memcpy (enc->cur, &fp, 4); |
571 | memcpy (enc->cur, &fp, 4); |
… | |
… | |
450 | } |
573 | } |
451 | else |
574 | else |
452 | { |
575 | { |
453 | uint64_t fp = ecb_double_to_binary64 (nv); |
576 | uint64_t fp = ecb_double_to_binary64 (nv); |
454 | |
577 | |
455 | *enc->cur++ = 0xe0 | 27; |
578 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
456 | |
579 | |
457 | if (!ecb_big_endian ()) |
580 | if (!ecb_big_endian ()) |
458 | fp = ecb_bswap64 (fp); |
581 | fp = ecb_bswap64 (fp); |
459 | |
582 | |
460 | memcpy (enc->cur, &fp, 8); |
583 | memcpy (enc->cur, &fp, 8); |
… | |
… | |
469 | |
592 | |
470 | if (SvPOKp (sv)) |
593 | if (SvPOKp (sv)) |
471 | { |
594 | { |
472 | STRLEN len; |
595 | STRLEN len; |
473 | char *str = SvPV (sv, len); |
596 | char *str = SvPV (sv, len); |
474 | encode_str (enc, SvUTF8 (sv), str, len); |
597 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
475 | } |
598 | } |
476 | else if (SvNOKp (sv)) |
599 | else if (SvNOKp (sv)) |
477 | encode_nv (enc, sv); |
600 | encode_nv (enc, sv); |
478 | else if (SvIOKp (sv)) |
601 | else if (SvIOKp (sv)) |
479 | { |
602 | { |
480 | if (SvIsUV (sv)) |
603 | if (SvIsUV (sv)) |
481 | encode_uint (enc, 0x00, SvUVX (sv)); |
604 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
482 | else if (SvIVX (sv) >= 0) |
605 | else if (SvIVX (sv) >= 0) |
483 | encode_uint (enc, 0x00, SvIVX (sv)); |
606 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
484 | else |
607 | else |
485 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
608 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
486 | } |
609 | } |
487 | else if (SvROK (sv)) |
610 | else if (SvROK (sv)) |
488 | encode_rv (enc, SvRV (sv)); |
611 | encode_rv (enc, SvRV (sv)); |
489 | else if (!SvOK (sv)) |
612 | else if (!SvOK (sv)) |
490 | encode_ch (enc, 0xe0 | 22); |
613 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
491 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
614 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
492 | encode_ch (enc, 0xe0 | 23); |
615 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
493 | else |
616 | else |
494 | 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", |
495 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
618 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
496 | } |
619 | } |
497 | |
620 | |
498 | static SV * |
621 | static SV * |
499 | encode_cbor (SV *scalar, CBOR *cbor) |
622 | encode_cbor (SV *scalar, CBOR *cbor) |
500 | { |
623 | { |
501 | enc_t enc = { }; |
624 | enc_t enc = { 0 }; |
502 | |
625 | |
503 | enc.cbor = *cbor; |
626 | enc.cbor = *cbor; |
504 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
627 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
505 | enc.cur = SvPVX (enc.sv); |
628 | enc.cur = SvPVX (enc.sv); |
506 | enc.end = SvEND (enc.sv); |
629 | enc.end = SvEND (enc.sv); |
507 | |
630 | |
508 | SvPOK_only (enc.sv); |
631 | SvPOK_only (enc.sv); |
509 | |
632 | |
510 | if (cbor->flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS)) |
633 | if (cbor->flags & F_PACK_STRINGS) |
511 | { |
634 | { |
512 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
635 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
513 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
636 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
514 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
637 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
515 | } |
638 | } |
… | |
… | |
537 | CBOR cbor; |
660 | CBOR cbor; |
538 | U32 depth; // recursion depth |
661 | U32 depth; // recursion depth |
539 | U32 maxdepth; // recursion depth limit |
662 | U32 maxdepth; // recursion depth limit |
540 | AV *shareable; |
663 | AV *shareable; |
541 | AV *stringref; |
664 | AV *stringref; |
|
|
665 | SV *decode_tagged; |
542 | } dec_t; |
666 | } dec_t; |
543 | |
667 | |
544 | #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 |
545 | |
669 | |
546 | #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 (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
… | |
… | |
549 | #define DEC_DEC_DEPTH --dec->depth |
673 | #define DEC_DEC_DEPTH --dec->depth |
550 | |
674 | |
551 | static UV |
675 | static UV |
552 | decode_uint (dec_t *dec) |
676 | decode_uint (dec_t *dec) |
553 | { |
677 | { |
554 | switch (*dec->cur & 31) |
678 | U8 m = *dec->cur & MINOR_MASK; |
555 | { |
679 | ++dec->cur; |
556 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
|
|
557 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
|
|
558 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
|
|
559 | return *dec->cur++ & 31; |
|
|
560 | |
680 | |
561 | case 24: |
681 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
682 | return m; |
|
|
683 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
|
|
684 | { |
562 | WANT (2); |
685 | WANT (1); |
563 | dec->cur += 2; |
686 | dec->cur += 1; |
564 | return dec->cur[-1]; |
687 | return dec->cur[-1]; |
565 | |
688 | } |
566 | case 25: |
689 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
690 | { |
567 | WANT (3); |
691 | WANT (2); |
568 | dec->cur += 3; |
692 | dec->cur += 2; |
569 | return (((UV)dec->cur[-2]) << 8) |
693 | return (((UV)dec->cur[-2]) << 8) |
570 | | ((UV)dec->cur[-1]); |
694 | | ((UV)dec->cur[-1]); |
571 | |
695 | } |
572 | case 26: |
696 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
697 | { |
573 | WANT (5); |
698 | WANT (4); |
574 | dec->cur += 5; |
699 | dec->cur += 4; |
575 | return (((UV)dec->cur[-4]) << 24) |
700 | return (((UV)dec->cur[-4]) << 24) |
576 | | (((UV)dec->cur[-3]) << 16) |
701 | | (((UV)dec->cur[-3]) << 16) |
577 | | (((UV)dec->cur[-2]) << 8) |
702 | | (((UV)dec->cur[-2]) << 8) |
578 | | ((UV)dec->cur[-1]); |
703 | | ((UV)dec->cur[-1]); |
579 | |
704 | } |
580 | case 27: |
705 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
706 | { |
581 | WANT (9); |
707 | WANT (8); |
582 | dec->cur += 9; |
708 | dec->cur += 8; |
|
|
709 | |
|
|
710 | return |
|
|
711 | #if UVSIZE < 8 |
|
|
712 | 0 |
|
|
713 | #else |
583 | return (((UV)dec->cur[-8]) << 56) |
714 | (((UV)dec->cur[-8]) << 56) |
584 | | (((UV)dec->cur[-7]) << 48) |
715 | | (((UV)dec->cur[-7]) << 48) |
585 | | (((UV)dec->cur[-6]) << 40) |
716 | | (((UV)dec->cur[-6]) << 40) |
586 | | (((UV)dec->cur[-5]) << 32) |
717 | | (((UV)dec->cur[-5]) << 32) |
|
|
718 | #endif |
587 | | (((UV)dec->cur[-4]) << 24) |
719 | | (((UV)dec->cur[-4]) << 24) |
588 | | (((UV)dec->cur[-3]) << 16) |
720 | | (((UV)dec->cur[-3]) << 16) |
589 | | (((UV)dec->cur[-2]) << 8) |
721 | | (((UV)dec->cur[-2]) << 8) |
590 | | ((UV)dec->cur[-1]); |
722 | | ((UV)dec->cur[-1]); |
591 | |
723 | } |
592 | default: |
724 | else |
593 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
725 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
594 | } |
|
|
595 | |
726 | |
596 | fail: |
727 | fail: |
597 | return 0; |
728 | return 0; |
598 | } |
729 | } |
599 | |
730 | |
… | |
… | |
604 | { |
735 | { |
605 | AV *av = newAV (); |
736 | AV *av = newAV (); |
606 | |
737 | |
607 | DEC_INC_DEPTH; |
738 | DEC_INC_DEPTH; |
608 | |
739 | |
609 | if ((*dec->cur & 31) == 31) |
740 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
610 | { |
741 | { |
611 | ++dec->cur; |
742 | ++dec->cur; |
612 | |
743 | |
613 | for (;;) |
744 | for (;;) |
614 | { |
745 | { |
615 | WANT (1); |
746 | WANT (1); |
616 | |
747 | |
617 | if (*dec->cur == (0xe0 | 31)) |
748 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
618 | { |
749 | { |
619 | ++dec->cur; |
750 | ++dec->cur; |
620 | break; |
751 | break; |
621 | } |
752 | } |
622 | |
753 | |
… | |
… | |
625 | } |
756 | } |
626 | else |
757 | else |
627 | { |
758 | { |
628 | int i, len = decode_uint (dec); |
759 | int i, len = decode_uint (dec); |
629 | |
760 | |
|
|
761 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
630 | av_fill (av, len - 1); |
762 | av_fill (av, len - 1); |
631 | |
763 | |
632 | for (i = 0; i < len; ++i) |
764 | for (i = 0; i < len; ++i) |
633 | AvARRAY (av)[i] = decode_sv (dec); |
765 | AvARRAY (av)[i] = decode_sv (dec); |
634 | } |
766 | } |
… | |
… | |
644 | |
776 | |
645 | static void |
777 | static void |
646 | decode_he (dec_t *dec, HV *hv) |
778 | decode_he (dec_t *dec, HV *hv) |
647 | { |
779 | { |
648 | // for speed reasons, we specialcase single-string |
780 | // for speed reasons, we specialcase single-string |
649 | // byte or utf-8 strings as keys. |
781 | // byte or utf-8 strings as keys, but only when !stringref |
650 | |
782 | |
651 | if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) |
783 | if (ecb_expect_true (!dec->stringref)) |
|
|
784 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
652 | { |
785 | { |
653 | I32 len = decode_uint (dec); |
786 | I32 len = decode_uint (dec); |
654 | char *key = (char *)dec->cur; |
787 | char *key = (char *)dec->cur; |
655 | |
788 | |
|
|
789 | WANT (len); |
656 | dec->cur += len; |
790 | dec->cur += len; |
657 | |
791 | |
658 | if (ecb_expect_false (dec->stringref)) |
|
|
659 | av_push (dec->stringref, newSVpvn (key, len)); |
|
|
660 | |
|
|
661 | hv_store (hv, key, len, decode_sv (dec), 0); |
792 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
793 | |
|
|
794 | return; |
662 | } |
795 | } |
663 | else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) |
796 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
664 | { |
797 | { |
665 | I32 len = decode_uint (dec); |
798 | I32 len = decode_uint (dec); |
666 | char *key = (char *)dec->cur; |
799 | char *key = (char *)dec->cur; |
667 | |
800 | |
|
|
801 | WANT (len); |
668 | dec->cur += len; |
802 | dec->cur += len; |
669 | |
803 | |
670 | if (ecb_expect_false (dec->stringref)) |
804 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
671 | 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)"); |
672 | |
807 | |
673 | hv_store (hv, key, -len, decode_sv (dec), 0); |
808 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
809 | |
|
|
810 | return; |
674 | } |
811 | } |
675 | else |
812 | |
676 | { |
|
|
677 | SV *k = decode_sv (dec); |
813 | SV *k = decode_sv (dec); |
678 | SV *v = decode_sv (dec); |
814 | SV *v = decode_sv (dec); |
679 | |
815 | |
680 | hv_store_ent (hv, k, v, 0); |
816 | hv_store_ent (hv, k, v, 0); |
681 | SvREFCNT_dec (k); |
817 | SvREFCNT_dec (k); |
682 | } |
818 | |
|
|
819 | fail: |
|
|
820 | ; |
683 | } |
821 | } |
684 | |
822 | |
685 | static SV * |
823 | static SV * |
686 | decode_hv (dec_t *dec) |
824 | decode_hv (dec_t *dec) |
687 | { |
825 | { |
688 | HV *hv = newHV (); |
826 | HV *hv = newHV (); |
689 | |
827 | |
690 | DEC_INC_DEPTH; |
828 | DEC_INC_DEPTH; |
691 | |
829 | |
692 | if ((*dec->cur & 31) == 31) |
830 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
693 | { |
831 | { |
694 | ++dec->cur; |
832 | ++dec->cur; |
695 | |
833 | |
696 | for (;;) |
834 | for (;;) |
697 | { |
835 | { |
698 | WANT (1); |
836 | WANT (1); |
699 | |
837 | |
700 | if (*dec->cur == (0xe0 | 31)) |
838 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
701 | { |
839 | { |
702 | ++dec->cur; |
840 | ++dec->cur; |
703 | break; |
841 | break; |
704 | } |
842 | } |
705 | |
843 | |
… | |
… | |
726 | static SV * |
864 | static SV * |
727 | decode_str (dec_t *dec, int utf8) |
865 | decode_str (dec_t *dec, int utf8) |
728 | { |
866 | { |
729 | SV *sv = 0; |
867 | SV *sv = 0; |
730 | |
868 | |
731 | if ((*dec->cur & 31) == 31) |
869 | if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
732 | { |
870 | { |
|
|
871 | // indefinite length strings |
733 | ++dec->cur; |
872 | ++dec->cur; |
734 | |
873 | |
|
|
874 | U8 major = *dec->cur & MAJOR_MISC; |
|
|
875 | |
735 | sv = newSVpvn ("", 0); |
876 | sv = newSVpvn ("", 0); |
736 | |
877 | |
737 | // not very fast, and certainly not robust against illegal input |
|
|
738 | for (;;) |
878 | for (;;) |
739 | { |
879 | { |
740 | WANT (1); |
880 | WANT (1); |
741 | |
881 | |
742 | if (*dec->cur == (0xe0 | 31)) |
882 | if ((*dec->cur - major) > LENGTH_EXT8) |
|
|
883 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
743 | { |
884 | { |
744 | ++dec->cur; |
885 | ++dec->cur; |
745 | break; |
886 | break; |
746 | } |
887 | } |
|
|
888 | else |
|
|
889 | ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
747 | |
890 | |
748 | sv_catsv (sv, decode_sv (dec)); |
891 | STRLEN len = decode_uint (dec); |
|
|
892 | |
|
|
893 | WANT (len); |
|
|
894 | sv_catpvn (sv, dec->cur, len); |
|
|
895 | dec->cur += len; |
749 | } |
896 | } |
750 | } |
897 | } |
751 | else |
898 | else |
752 | { |
899 | { |
753 | STRLEN len = decode_uint (dec); |
900 | STRLEN len = decode_uint (dec); |
754 | |
901 | |
755 | WANT (len); |
902 | WANT (len); |
756 | sv = newSVpvn (dec->cur, len); |
903 | sv = newSVpvn (dec->cur, len); |
757 | dec->cur += len; |
904 | dec->cur += len; |
|
|
905 | |
|
|
906 | if (ecb_expect_false (dec->stringref) |
|
|
907 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
908 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
758 | } |
909 | } |
759 | |
910 | |
760 | if (utf8) |
911 | if (utf8) |
|
|
912 | { |
|
|
913 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
914 | if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
915 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
916 | |
761 | SvUTF8_on (sv); |
917 | SvUTF8_on (sv); |
762 | |
918 | } |
763 | if (ecb_expect_false (dec->stringref)) |
|
|
764 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
|
|
765 | |
919 | |
766 | return sv; |
920 | return sv; |
767 | |
921 | |
768 | fail: |
922 | fail: |
769 | SvREFCNT_dec (sv); |
923 | SvREFCNT_dec (sv); |
… | |
… | |
788 | sv = newRV_noinc (decode_sv (dec)); |
942 | sv = newRV_noinc (decode_sv (dec)); |
789 | break; |
943 | break; |
790 | |
944 | |
791 | case CBOR_TAG_STRINGREF_NAMESPACE: |
945 | case CBOR_TAG_STRINGREF_NAMESPACE: |
792 | { |
946 | { |
|
|
947 | // do nmot use SAVETMPS/FREETMPS, as these will |
|
|
948 | // erase mortalised caches, e.g. "shareable" |
793 | ENTER; SAVETMPS; |
949 | ENTER; |
794 | |
950 | |
795 | SAVESPTR (dec->stringref); |
951 | SAVESPTR (dec->stringref); |
796 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
952 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
797 | |
953 | |
798 | sv = decode_sv (dec); |
954 | sv = decode_sv (dec); |
799 | |
955 | |
800 | FREETMPS; LEAVE; |
956 | LEAVE; |
801 | } |
957 | } |
802 | break; |
958 | break; |
803 | |
959 | |
804 | case CBOR_TAG_STRINGREF: |
960 | case CBOR_TAG_STRINGREF: |
805 | { |
961 | { |
806 | if ((*dec->cur >> 5) != 0) |
962 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
807 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
963 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
808 | |
964 | |
809 | UV idx = decode_uint (dec); |
965 | UV idx = decode_uint (dec); |
810 | |
966 | |
811 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
967 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
… | |
… | |
818 | case CBOR_TAG_VALUE_SHAREABLE: |
974 | case CBOR_TAG_VALUE_SHAREABLE: |
819 | { |
975 | { |
820 | if (ecb_expect_false (!dec->shareable)) |
976 | if (ecb_expect_false (!dec->shareable)) |
821 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
977 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
822 | |
978 | |
|
|
979 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
980 | { |
823 | sv = newSV (0); |
981 | sv = newSV (0); |
824 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
982 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
825 | |
983 | |
826 | SV *osv = decode_sv (dec); |
984 | SV *osv = decode_sv (dec); |
827 | sv_setsv (sv, osv); |
985 | sv_setsv (sv, osv); |
828 | SvREFCNT_dec_NN (osv); |
986 | SvREFCNT_dec_NN (osv); |
|
|
987 | } |
|
|
988 | else |
|
|
989 | { |
|
|
990 | av_push (dec->shareable, &PL_sv_undef); |
|
|
991 | int idx = AvFILLp (dec->shareable); |
|
|
992 | sv = decode_sv (dec); |
|
|
993 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
994 | } |
829 | } |
995 | } |
830 | break; |
996 | break; |
831 | |
997 | |
832 | case CBOR_TAG_VALUE_SHAREDREF: |
998 | case CBOR_TAG_VALUE_SHAREDREF: |
833 | { |
999 | { |
834 | if ((*dec->cur >> 5) != 0) |
1000 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
835 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
1001 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
836 | |
1002 | |
837 | UV idx = decode_uint (dec); |
1003 | UV idx = decode_uint (dec); |
838 | |
1004 | |
839 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
1005 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
840 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
1006 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
841 | |
1007 | |
842 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
1008 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
1009 | |
|
|
1010 | if (sv == &PL_sv_undef) |
|
|
1011 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
843 | } |
1012 | } |
844 | break; |
1013 | break; |
845 | |
1014 | |
846 | case CBOR_TAG_PERL_OBJECT: |
1015 | case CBOR_TAG_PERL_OBJECT: |
847 | { |
1016 | { |
… | |
… | |
862 | if (!method) |
1031 | if (!method) |
863 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
1032 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
864 | |
1033 | |
865 | dSP; |
1034 | dSP; |
866 | |
1035 | |
867 | ENTER; SAVETMPS; PUSHMARK (SP); |
1036 | ENTER; SAVETMPS; |
|
|
1037 | PUSHMARK (SP); |
868 | EXTEND (SP, len + 1); |
1038 | EXTEND (SP, len + 1); |
869 | // we re-bless the reference to get overload and other niceties right |
1039 | // we re-bless the reference to get overload and other niceties right |
870 | PUSHs (*av_fetch (av, 0, 1)); |
1040 | PUSHs (*av_fetch (av, 0, 1)); |
871 | PUSHs (sv_cbor); |
1041 | PUSHs (sv_cbor); |
872 | |
1042 | |
… | |
… | |
896 | |
1066 | |
897 | default: |
1067 | default: |
898 | { |
1068 | { |
899 | sv = decode_sv (dec); |
1069 | sv = decode_sv (dec); |
900 | |
1070 | |
|
|
1071 | dSP; |
|
|
1072 | ENTER; SAVETMPS; |
|
|
1073 | SAVESTACK_POS (); |
|
|
1074 | PUSHMARK (SP); |
|
|
1075 | EXTEND (SP, 2); |
|
|
1076 | PUSHs (newSVuv (tag)); |
|
|
1077 | PUSHs (sv); |
|
|
1078 | |
|
|
1079 | PUTBACK; |
|
|
1080 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
1081 | SPAGAIN; |
|
|
1082 | |
|
|
1083 | if (SvTRUE (ERRSV)) |
|
|
1084 | { |
|
|
1085 | FREETMPS; LEAVE; |
|
|
1086 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | if (count) |
|
|
1090 | { |
|
|
1091 | SvREFCNT_dec (sv); |
|
|
1092 | sv = SvREFCNT_inc (POPs); |
|
|
1093 | } |
|
|
1094 | else |
|
|
1095 | { |
901 | AV *av = newAV (); |
1096 | AV *av = newAV (); |
902 | av_push (av, newSVuv (tag)); |
1097 | av_push (av, newSVuv (tag)); |
903 | av_push (av, sv); |
1098 | av_push (av, sv); |
904 | |
1099 | |
905 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1100 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
906 | ? cbor_tagged_stash |
1101 | ? cbor_tagged_stash |
907 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
1102 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
908 | |
|
|
909 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
1103 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
1104 | } |
|
|
1105 | |
|
|
1106 | PUTBACK; |
|
|
1107 | |
|
|
1108 | FREETMPS; LEAVE; |
910 | } |
1109 | } |
911 | break; |
1110 | break; |
912 | } |
1111 | } |
913 | |
1112 | |
914 | return sv; |
1113 | return sv; |
… | |
… | |
921 | static SV * |
1120 | static SV * |
922 | decode_sv (dec_t *dec) |
1121 | decode_sv (dec_t *dec) |
923 | { |
1122 | { |
924 | WANT (1); |
1123 | WANT (1); |
925 | |
1124 | |
926 | switch (*dec->cur >> 5) |
1125 | switch (*dec->cur >> MAJOR_SHIFT) |
927 | { |
1126 | { |
928 | case 0: // unsigned int |
1127 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
929 | return newSVuv (decode_uint (dec)); |
1128 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
930 | case 1: // negative int |
1129 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
931 | return newSViv (-1 - (IV)decode_uint (dec)); |
1130 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
932 | case 2: // octet string |
1131 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
933 | return decode_str (dec, 0); |
1132 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
934 | case 3: // utf-8 string |
1133 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
935 | return decode_str (dec, 1); |
1134 | |
936 | case 4: // array |
1135 | case MAJOR_MISC >> MAJOR_SHIFT: |
937 | return decode_av (dec); |
|
|
938 | case 5: // map |
|
|
939 | return decode_hv (dec); |
|
|
940 | case 6: // tag |
|
|
941 | return decode_tagged (dec); |
|
|
942 | case 7: // misc |
|
|
943 | switch (*dec->cur++ & 31) |
1136 | switch (*dec->cur++ & MINOR_MASK) |
944 | { |
1137 | { |
945 | case 20: |
1138 | case SIMPLE_FALSE: |
946 | #if CBOR_SLOW |
1139 | #if CBOR_SLOW |
947 | types_false = get_bool ("Types::Serialiser::false"); |
1140 | types_false = get_bool ("Types::Serialiser::false"); |
948 | #endif |
1141 | #endif |
949 | return newSVsv (types_false); |
1142 | return newSVsv (types_false); |
950 | case 21: |
1143 | case SIMPLE_TRUE: |
951 | #if CBOR_SLOW |
1144 | #if CBOR_SLOW |
952 | types_true = get_bool ("Types::Serialiser::true"); |
1145 | types_true = get_bool ("Types::Serialiser::true"); |
953 | #endif |
1146 | #endif |
954 | return newSVsv (types_true); |
1147 | return newSVsv (types_true); |
955 | case 22: |
1148 | case SIMPLE_NULL: |
956 | return newSVsv (&PL_sv_undef); |
1149 | return newSVsv (&PL_sv_undef); |
957 | case 23: |
1150 | case SIMPLE_UNDEF: |
958 | #if CBOR_SLOW |
1151 | #if CBOR_SLOW |
959 | types_error = get_bool ("Types::Serialiser::error"); |
1152 | types_error = get_bool ("Types::Serialiser::error"); |
960 | #endif |
1153 | #endif |
961 | return newSVsv (types_error); |
1154 | return newSVsv (types_error); |
962 | |
1155 | |
963 | case 25: |
1156 | case MISC_FLOAT16: |
964 | { |
1157 | { |
965 | WANT (2); |
1158 | WANT (2); |
966 | |
1159 | |
967 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1160 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
968 | dec->cur += 2; |
1161 | dec->cur += 2; |
969 | |
1162 | |
970 | return newSVnv (ecb_binary16_to_float (fp)); |
1163 | return newSVnv (ecb_binary16_to_float (fp)); |
971 | } |
1164 | } |
972 | |
1165 | |
973 | case 26: |
1166 | case MISC_FLOAT32: |
974 | { |
1167 | { |
975 | uint32_t fp; |
1168 | uint32_t fp; |
976 | WANT (4); |
1169 | WANT (4); |
977 | memcpy (&fp, dec->cur, 4); |
1170 | memcpy (&fp, dec->cur, 4); |
978 | dec->cur += 4; |
1171 | dec->cur += 4; |
… | |
… | |
981 | fp = ecb_bswap32 (fp); |
1174 | fp = ecb_bswap32 (fp); |
982 | |
1175 | |
983 | return newSVnv (ecb_binary32_to_float (fp)); |
1176 | return newSVnv (ecb_binary32_to_float (fp)); |
984 | } |
1177 | } |
985 | |
1178 | |
986 | case 27: |
1179 | case MISC_FLOAT64: |
987 | { |
1180 | { |
988 | uint64_t fp; |
1181 | uint64_t fp; |
989 | WANT (8); |
1182 | WANT (8); |
990 | memcpy (&fp, dec->cur, 8); |
1183 | memcpy (&fp, dec->cur, 8); |
991 | dec->cur += 8; |
1184 | dec->cur += 8; |
… | |
… | |
994 | fp = ecb_bswap64 (fp); |
1187 | fp = ecb_bswap64 (fp); |
995 | |
1188 | |
996 | return newSVnv (ecb_binary64_to_double (fp)); |
1189 | return newSVnv (ecb_binary64_to_double (fp)); |
997 | } |
1190 | } |
998 | |
1191 | |
999 | // 0..19 unassigned |
1192 | // 0..19 unassigned simple |
1000 | // 24 reserved + unassigned (reserved values are not encodable) |
1193 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1194 | // 28-30 unassigned misc |
|
|
1195 | // 31 break code |
1001 | default: |
1196 | default: |
1002 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1197 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
1003 | } |
1198 | } |
1004 | |
1199 | |
1005 | break; |
1200 | break; |
1006 | } |
1201 | } |
1007 | |
1202 | |
… | |
… | |
1010 | } |
1205 | } |
1011 | |
1206 | |
1012 | static SV * |
1207 | static SV * |
1013 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1208 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1014 | { |
1209 | { |
1015 | dec_t dec = { }; |
1210 | dec_t dec = { 0 }; |
1016 | SV *sv; |
1211 | SV *sv; |
1017 | STRLEN len; |
1212 | STRLEN len; |
1018 | char *data = SvPVbyte (string, len); |
1213 | char *data = SvPVbyte (string, len); |
1019 | |
1214 | |
1020 | if (len > cbor->max_size && cbor->max_size) |
1215 | if (len > cbor->max_size && cbor->max_size) |
… | |
… | |
1034 | if (dec.cur != dec.end && !dec.err) |
1229 | if (dec.cur != dec.end && !dec.err) |
1035 | dec.err = "garbage after CBOR object"; |
1230 | dec.err = "garbage after CBOR object"; |
1036 | |
1231 | |
1037 | if (dec.err) |
1232 | if (dec.err) |
1038 | { |
1233 | { |
|
|
1234 | if (dec.shareable) |
|
|
1235 | { |
|
|
1236 | // need to break cyclic links, which whould all be in shareable |
|
|
1237 | int i; |
|
|
1238 | SV **svp; |
|
|
1239 | |
|
|
1240 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1241 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1242 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1243 | } |
|
|
1244 | |
1039 | SvREFCNT_dec (sv); |
1245 | SvREFCNT_dec (sv); |
1040 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1246 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1041 | } |
1247 | } |
1042 | |
1248 | |
1043 | sv = sv_2mortal (sv); |
1249 | sv = sv_2mortal (sv); |
1044 | |
1250 | |
1045 | return sv; |
1251 | return sv; |
1046 | } |
1252 | } |
1047 | |
1253 | |
|
|
1254 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1255 | // incremental parser |
|
|
1256 | |
|
|
1257 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1258 | |
|
|
1259 | // returns 0 for notyet, 1 for success or error |
|
|
1260 | static int |
|
|
1261 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1262 | { |
|
|
1263 | STRLEN cur; |
|
|
1264 | SvPV (cborstr, cur); |
|
|
1265 | |
|
|
1266 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1267 | { |
|
|
1268 | // table of integer count bytes |
|
|
1269 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1270 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1271 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1272 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1273 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1274 | }; |
|
|
1275 | |
|
|
1276 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1277 | U8 m = *p & MINOR_MASK; |
|
|
1278 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1279 | I8 ilen = incr_len[m]; |
|
|
1280 | |
|
|
1281 | self->incr_need = self->incr_pos + 1; |
|
|
1282 | |
|
|
1283 | if (ecb_expect_false (ilen < 0)) |
|
|
1284 | { |
|
|
1285 | if (m != MINOR_INDEF) |
|
|
1286 | return 1; // error |
|
|
1287 | |
|
|
1288 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1289 | { |
|
|
1290 | if (count >= 0) |
|
|
1291 | return 1; // error |
|
|
1292 | |
|
|
1293 | count = 1; |
|
|
1294 | } |
|
|
1295 | else |
|
|
1296 | { |
|
|
1297 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1298 | count = -1; |
|
|
1299 | } |
|
|
1300 | } |
|
|
1301 | else |
|
|
1302 | { |
|
|
1303 | self->incr_need += ilen; |
|
|
1304 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1305 | return 0; |
|
|
1306 | |
|
|
1307 | int major = *p >> MAJOR_SHIFT; |
|
|
1308 | |
|
|
1309 | switch (major) |
|
|
1310 | { |
|
|
1311 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1312 | ++count; // tags merely prefix another value |
|
|
1313 | break; |
|
|
1314 | |
|
|
1315 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1316 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1317 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1318 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1319 | { |
|
|
1320 | UV len; |
|
|
1321 | |
|
|
1322 | if (ecb_expect_false (ilen)) |
|
|
1323 | { |
|
|
1324 | len = 0; |
|
|
1325 | |
|
|
1326 | do { |
|
|
1327 | len = (len << 8) | *++p; |
|
|
1328 | } while (--ilen); |
|
|
1329 | } |
|
|
1330 | else |
|
|
1331 | len = m; |
|
|
1332 | |
|
|
1333 | switch (major) |
|
|
1334 | { |
|
|
1335 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1336 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1337 | self->incr_need += len; |
|
|
1338 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1339 | return 0; |
|
|
1340 | |
|
|
1341 | break; |
|
|
1342 | |
|
|
1343 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1344 | len <<= 1; |
|
|
1345 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1346 | if (len) |
|
|
1347 | { |
|
|
1348 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1349 | count = len + 1; |
|
|
1350 | } |
|
|
1351 | break; |
|
|
1352 | } |
|
|
1353 | } |
|
|
1354 | } |
|
|
1355 | } |
|
|
1356 | |
|
|
1357 | self->incr_pos = self->incr_need; |
|
|
1358 | |
|
|
1359 | if (count > 0) |
|
|
1360 | { |
|
|
1361 | while (!--count) |
|
|
1362 | { |
|
|
1363 | if (!AvFILLp (self->incr_count)) |
|
|
1364 | return 1; // done |
|
|
1365 | |
|
|
1366 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1367 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1368 | } |
|
|
1369 | |
|
|
1370 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1371 | } |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | return 0; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | |
1048 | ///////////////////////////////////////////////////////////////////////////// |
1378 | ///////////////////////////////////////////////////////////////////////////// |
1049 | // XS interface functions |
1379 | // XS interface functions |
1050 | |
1380 | |
1051 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1381 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1052 | |
1382 | |
… | |
… | |
1059 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
1389 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
1060 | |
1390 | |
1061 | types_true = get_bool ("Types::Serialiser::true" ); |
1391 | types_true = get_bool ("Types::Serialiser::true" ); |
1062 | types_false = get_bool ("Types::Serialiser::false"); |
1392 | types_false = get_bool ("Types::Serialiser::false"); |
1063 | types_error = get_bool ("Types::Serialiser::error"); |
1393 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1394 | |
|
|
1395 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1064 | |
1396 | |
1065 | sv_cbor = newSVpv ("CBOR", 0); |
1397 | sv_cbor = newSVpv ("CBOR", 0); |
1066 | SvREADONLY_on (sv_cbor); |
1398 | SvREADONLY_on (sv_cbor); |
1067 | } |
1399 | } |
1068 | |
1400 | |
… | |
… | |
1090 | void shrink (CBOR *self, int enable = 1) |
1422 | void shrink (CBOR *self, int enable = 1) |
1091 | ALIAS: |
1423 | ALIAS: |
1092 | shrink = F_SHRINK |
1424 | shrink = F_SHRINK |
1093 | allow_unknown = F_ALLOW_UNKNOWN |
1425 | allow_unknown = F_ALLOW_UNKNOWN |
1094 | allow_sharing = F_ALLOW_SHARING |
1426 | allow_sharing = F_ALLOW_SHARING |
1095 | dedup_keys = F_DEDUP_KEYS |
1427 | allow_cycles = F_ALLOW_CYCLES |
1096 | dedup_strings = F_DEDUP_STRINGS |
1428 | pack_strings = F_PACK_STRINGS |
|
|
1429 | text_keys = F_TEXT_KEYS |
|
|
1430 | text_strings = F_TEXT_STRINGS |
|
|
1431 | validate_utf8 = F_VALIDATE_UTF8 |
1097 | PPCODE: |
1432 | PPCODE: |
1098 | { |
1433 | { |
1099 | if (enable) |
1434 | if (enable) |
1100 | self->flags |= ix; |
1435 | self->flags |= ix; |
1101 | else |
1436 | else |
… | |
… | |
1107 | void get_shrink (CBOR *self) |
1442 | void get_shrink (CBOR *self) |
1108 | ALIAS: |
1443 | ALIAS: |
1109 | get_shrink = F_SHRINK |
1444 | get_shrink = F_SHRINK |
1110 | get_allow_unknown = F_ALLOW_UNKNOWN |
1445 | get_allow_unknown = F_ALLOW_UNKNOWN |
1111 | get_allow_sharing = F_ALLOW_SHARING |
1446 | get_allow_sharing = F_ALLOW_SHARING |
1112 | get_dedup_keys = F_DEDUP_KEYS |
1447 | get_allow_cycles = F_ALLOW_CYCLES |
1113 | get_dedup_strings = F_DEDUP_STRINGS |
1448 | get_pack_strings = F_PACK_STRINGS |
|
|
1449 | get_text_keys = F_TEXT_KEYS |
|
|
1450 | get_text_strings = F_TEXT_STRINGS |
|
|
1451 | get_validate_utf8 = F_VALIDATE_UTF8 |
1114 | PPCODE: |
1452 | PPCODE: |
1115 | XPUSHs (boolSV (self->flags & ix)); |
1453 | XPUSHs (boolSV (self->flags & ix)); |
1116 | |
1454 | |
1117 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1455 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1118 | PPCODE: |
1456 | PPCODE: |
… | |
… | |
1131 | XPUSHs (ST (0)); |
1469 | XPUSHs (ST (0)); |
1132 | |
1470 | |
1133 | int get_max_size (CBOR *self) |
1471 | int get_max_size (CBOR *self) |
1134 | CODE: |
1472 | CODE: |
1135 | RETVAL = self->max_size; |
1473 | RETVAL = self->max_size; |
|
|
1474 | OUTPUT: |
|
|
1475 | RETVAL |
|
|
1476 | |
|
|
1477 | void filter (CBOR *self, SV *filter = 0) |
|
|
1478 | PPCODE: |
|
|
1479 | SvREFCNT_dec (self->filter); |
|
|
1480 | self->filter = filter ? newSVsv (filter) : filter; |
|
|
1481 | XPUSHs (ST (0)); |
|
|
1482 | |
|
|
1483 | SV *get_filter (CBOR *self) |
|
|
1484 | CODE: |
|
|
1485 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1136 | OUTPUT: |
1486 | OUTPUT: |
1137 | RETVAL |
1487 | RETVAL |
1138 | |
1488 | |
1139 | void encode (CBOR *self, SV *scalar) |
1489 | void encode (CBOR *self, SV *scalar) |
1140 | PPCODE: |
1490 | PPCODE: |
… | |
… | |
1155 | EXTEND (SP, 2); |
1505 | EXTEND (SP, 2); |
1156 | PUSHs (sv); |
1506 | PUSHs (sv); |
1157 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1507 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1158 | } |
1508 | } |
1159 | |
1509 | |
|
|
1510 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1511 | ALIAS: |
|
|
1512 | incr_parse_multiple = 1 |
|
|
1513 | PPCODE: |
|
|
1514 | { |
|
|
1515 | if (SvUTF8 (cborstr)) |
|
|
1516 | sv_utf8_downgrade (cborstr, 0); |
|
|
1517 | |
|
|
1518 | if (!self->incr_count) |
|
|
1519 | { |
|
|
1520 | self->incr_count = newAV (); |
|
|
1521 | self->incr_pos = 0; |
|
|
1522 | self->incr_need = 1; |
|
|
1523 | |
|
|
1524 | av_push (self->incr_count, newSViv (1)); |
|
|
1525 | } |
|
|
1526 | |
|
|
1527 | do |
|
|
1528 | { |
|
|
1529 | if (!incr_parse (self, cborstr)) |
|
|
1530 | { |
|
|
1531 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1532 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1533 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1534 | |
|
|
1535 | break; |
|
|
1536 | } |
|
|
1537 | |
|
|
1538 | SV *sv; |
|
|
1539 | char *offset; |
|
|
1540 | |
|
|
1541 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1542 | XPUSHs (sv); |
|
|
1543 | |
|
|
1544 | sv_chop (cborstr, offset); |
|
|
1545 | |
|
|
1546 | av_clear (self->incr_count); |
|
|
1547 | av_push (self->incr_count, newSViv (1)); |
|
|
1548 | |
|
|
1549 | self->incr_pos = 0; |
|
|
1550 | self->incr_need = self->incr_pos + 1; |
|
|
1551 | } |
|
|
1552 | while (ix); |
|
|
1553 | } |
|
|
1554 | |
|
|
1555 | void incr_reset (CBOR *self) |
|
|
1556 | CODE: |
|
|
1557 | { |
|
|
1558 | SvREFCNT_dec (self->incr_count); |
|
|
1559 | self->incr_count = 0; |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | void DESTROY (CBOR *self) |
|
|
1563 | PPCODE: |
|
|
1564 | cbor_free (self); |
|
|
1565 | |
1160 | PROTOTYPES: ENABLE |
1566 | PROTOTYPES: ENABLE |
1161 | |
1567 | |
1162 | void encode_cbor (SV *scalar) |
1568 | void encode_cbor (SV *scalar) |
|
|
1569 | ALIAS: |
|
|
1570 | encode_cbor = 0 |
|
|
1571 | encode_cbor_sharing = F_ALLOW_SHARING |
1163 | PPCODE: |
1572 | PPCODE: |
1164 | { |
1573 | { |
1165 | CBOR cbor; |
1574 | CBOR cbor; |
1166 | cbor_init (&cbor); |
1575 | cbor_init (&cbor); |
|
|
1576 | cbor.flags |= ix; |
1167 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1577 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1168 | XPUSHs (scalar); |
1578 | XPUSHs (scalar); |
1169 | } |
1579 | } |
1170 | |
1580 | |
1171 | void decode_cbor (SV *cborstr) |
1581 | void decode_cbor (SV *cborstr) |