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6 | #include <string.h> |
6 | #include <string.h> |
7 | #include <stdlib.h> |
7 | #include <stdlib.h> |
8 | #include <stdio.h> |
8 | #include <stdio.h> |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
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11 | #include <inttypes.h> |
11 | |
12 | |
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13 | #define ECB_NO_THREADS 1 |
12 | #include "ecb.h" |
14 | #include "ecb.h" |
13 | |
15 | |
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16 | // compatibility with perl <5.18 |
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17 | #ifndef HvNAMELEN_get |
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18 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
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19 | #endif |
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20 | #ifndef HvNAMELEN |
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21 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
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22 | #endif |
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23 | #ifndef HvNAMEUTF8 |
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24 | # define HvNAMEUTF8(hv) 0 |
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25 | #endif |
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26 | #ifndef SvREFCNT_inc_NN |
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27 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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28 | #endif |
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29 | #ifndef SvREFCNT_dec_NN |
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30 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
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31 | #endif |
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32 | |
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33 | // known major and minor types |
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34 | enum cbor_type |
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35 | { |
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36 | MAJOR_SHIFT = 5, |
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37 | MINOR_MASK = 0x1f, |
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38 | |
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39 | MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
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40 | MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
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41 | MAJOR_BYTES = 2 << MAJOR_SHIFT, |
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42 | MAJOR_TEXT = 3 << MAJOR_SHIFT, |
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43 | MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
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44 | MAJOR_MAP = 5 << MAJOR_SHIFT, |
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45 | MAJOR_TAG = 6 << MAJOR_SHIFT, |
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46 | MAJOR_MISC = 7 << MAJOR_SHIFT, |
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47 | |
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48 | // INT/STRING/ARRAY/MAP subtypes |
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49 | LENGTH_EXT1 = 24, |
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50 | LENGTH_EXT2 = 25, |
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51 | LENGTH_EXT4 = 26, |
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52 | LENGTH_EXT8 = 27, |
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53 | |
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54 | // SIMPLE types (effectively MISC subtypes) |
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55 | SIMPLE_FALSE = 20, |
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56 | SIMPLE_TRUE = 21, |
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57 | SIMPLE_NULL = 22, |
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58 | SIMPLE_UNDEF = 23, |
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59 | |
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60 | // MISC subtype (unused) |
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61 | MISC_EXT1 = 24, |
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62 | MISC_FLOAT16 = 25, |
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63 | MISC_FLOAT32 = 26, |
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64 | MISC_FLOAT64 = 27, |
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65 | |
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66 | // BYTES/TEXT/ARRAY/MAP |
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67 | MINOR_INDEF = 31, |
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68 | }; |
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69 | |
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70 | // known tags |
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71 | enum cbor_tag |
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72 | { |
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73 | // extensions |
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74 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
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75 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
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76 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
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77 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
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78 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
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79 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
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80 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
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81 | |
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82 | // rfc7049 |
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83 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
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84 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
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85 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
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86 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
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87 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
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88 | CBOR_TAG_BIGFLOAT = 5, // array |
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89 | |
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90 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
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91 | CBOR_TAG_CONV_B64 = 22, // base64, any |
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92 | CBOR_TAG_CONV_HEX = 23, // base16, any |
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93 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
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94 | |
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95 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
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96 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
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97 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
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98 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
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99 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
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100 | |
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101 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
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102 | }; |
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103 | |
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104 | // known forced types, also hardcoded in CBOR.pm |
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105 | enum |
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106 | { |
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107 | AS_CBOR = 0, |
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108 | AS_INT = 1, |
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109 | AS_BYTES = 2, |
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110 | AS_TEXT = 3, |
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111 | AS_FLOAT16 = 4, |
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112 | AS_FLOAT32 = 5, |
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113 | AS_FLOAT64 = 6, |
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114 | AS_MAP = 7, |
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115 | // possibly future enhancements: (generic) float, (generic) string |
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116 | }; |
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117 | |
14 | #define F_SHRINK 0x00000200UL |
118 | #define F_SHRINK 0x00000001UL |
15 | #define F_ALLOW_UNKNOWN 0x00002000UL |
119 | #define F_ALLOW_UNKNOWN 0x00000002UL |
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120 | #define F_ALLOW_SHARING 0x00000004UL |
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121 | #define F_ALLOW_CYCLES 0x00000008UL |
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122 | #define F_FORBID_OBJECTS 0x00000010UL |
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123 | #define F_PACK_STRINGS 0x00000020UL |
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124 | #define F_TEXT_KEYS 0x00000040UL |
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125 | #define F_TEXT_STRINGS 0x00000080UL |
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126 | #define F_VALIDATE_UTF8 0x00000100UL |
16 | |
127 | |
17 | #define INIT_SIZE 32 // initial scalar size to be allocated |
128 | #define INIT_SIZE 32 // initial scalar size to be allocated |
18 | |
129 | |
19 | #define SB do { |
130 | #define SB do { |
20 | #define SE } while (0) |
131 | #define SE } while (0) |
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31 | #else |
142 | #else |
32 | # define CBOR_SLOW 0 |
143 | # define CBOR_SLOW 0 |
33 | # define CBOR_STASH cbor_stash |
144 | # define CBOR_STASH cbor_stash |
34 | #endif |
145 | #endif |
35 | |
146 | |
36 | static HV *cbor_stash, *cbor_boolean_stash, *cbor_tagged_stash; // CBOR::XS:: |
147 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
37 | static SV *cbor_true, *cbor_false; |
148 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
38 | |
149 | |
39 | typedef struct { |
150 | typedef struct { |
40 | U32 flags; |
151 | U32 flags; |
41 | U32 max_depth; |
152 | U32 max_depth; |
42 | STRLEN max_size; |
153 | STRLEN max_size; |
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154 | SV *filter; |
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155 | |
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156 | // for the incremental parser |
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157 | STRLEN incr_pos; // the current offset into the text |
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158 | STRLEN incr_need; // minimum bytes needed to decode |
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159 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
43 | } CBOR; |
160 | } CBOR; |
44 | |
161 | |
45 | ecb_inline void |
162 | ecb_inline void |
46 | cbor_init (CBOR *cbor) |
163 | cbor_init (CBOR *cbor) |
47 | { |
164 | { |
48 | Zero (cbor, 1, CBOR); |
165 | Zero (cbor, 1, CBOR); |
49 | cbor->max_depth = 512; |
166 | cbor->max_depth = 512; |
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167 | } |
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168 | |
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169 | ecb_inline void |
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170 | cbor_free (CBOR *cbor) |
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171 | { |
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172 | SvREFCNT_dec (cbor->filter); |
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173 | SvREFCNT_dec (cbor->incr_count); |
50 | } |
174 | } |
51 | |
175 | |
52 | ///////////////////////////////////////////////////////////////////////////// |
176 | ///////////////////////////////////////////////////////////////////////////// |
53 | // utility functions |
177 | // utility functions |
54 | |
178 | |
… | |
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76 | SvPV_renew (sv, SvCUR (sv) + 1); |
200 | SvPV_renew (sv, SvCUR (sv) + 1); |
77 | #endif |
201 | #endif |
78 | } |
202 | } |
79 | } |
203 | } |
80 | |
204 | |
81 | ///////////////////////////////////////////////////////////////////////////// |
205 | // minimum length of a string to be registered for stringref |
82 | // fp hell |
206 | ecb_inline int |
83 | |
207 | minimum_string_length (UV idx) |
84 | //TODO |
208 | { |
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209 | return idx <= 23 ? 3 |
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210 | : idx <= 0xffU ? 4 |
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211 | : idx <= 0xffffU ? 5 |
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212 | : idx <= 0xffffffffU ? 7 |
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213 | : 11; |
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214 | } |
85 | |
215 | |
86 | ///////////////////////////////////////////////////////////////////////////// |
216 | ///////////////////////////////////////////////////////////////////////////// |
87 | // encoder |
217 | // encoder |
88 | |
218 | |
89 | // structure used for encoding CBOR |
219 | // structure used for encoding CBOR |
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92 | char *cur; // SvPVX (sv) + current output position |
222 | char *cur; // SvPVX (sv) + current output position |
93 | char *end; // SvEND (sv) |
223 | char *end; // SvEND (sv) |
94 | SV *sv; // result scalar |
224 | SV *sv; // result scalar |
95 | CBOR cbor; |
225 | CBOR cbor; |
96 | U32 depth; // recursion level |
226 | U32 depth; // recursion level |
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227 | HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
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228 | UV stringref_idx; |
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229 | HV *shareable; // ptr => index, or 0 |
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230 | UV shareable_idx; |
97 | } enc_t; |
231 | } enc_t; |
98 | |
232 | |
99 | ecb_inline void |
233 | ecb_inline void |
100 | need (enc_t *enc, STRLEN len) |
234 | need (enc_t *enc, STRLEN len) |
101 | { |
235 | { |
102 | if (ecb_expect_false (enc->cur + len >= enc->end)) |
236 | if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len)) |
103 | { |
237 | { |
104 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
238 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
105 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
239 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
106 | enc->cur = SvPVX (enc->sv) + cur; |
240 | enc->cur = SvPVX (enc->sv) + cur; |
107 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
241 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
108 | } |
242 | } |
109 | } |
243 | } |
110 | |
244 | |
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245 | static void encode_sv (enc_t *enc, SV *sv); |
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246 | |
111 | ecb_inline void |
247 | ecb_inline void |
112 | encode_ch (enc_t *enc, char ch) |
248 | encode_ch (enc_t *enc, char ch) |
113 | { |
249 | { |
114 | need (enc, 1); |
250 | need (enc, 1); |
115 | *enc->cur++ = ch; |
251 | *enc->cur++ = ch; |
116 | } |
252 | } |
117 | |
253 | |
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254 | // used for tags, intregers, element counts and so on |
118 | static void |
255 | static void |
119 | encode_uint (enc_t *enc, int major, UV len) |
256 | encode_uint (enc_t *enc, int major, UV len) |
120 | { |
257 | { |
121 | need (enc, 9); |
258 | need (enc, 9); |
122 | |
259 | |
123 | if (len < 24) |
260 | if (ecb_expect_true (len < LENGTH_EXT1)) |
124 | *enc->cur++ = major | len; |
261 | *enc->cur++ = major | len; |
125 | else if (len <= 0xff) |
262 | else if (ecb_expect_true (len <= 0xffU)) |
126 | { |
263 | { |
127 | *enc->cur++ = major | 24; |
264 | *enc->cur++ = major | LENGTH_EXT1; |
128 | *enc->cur++ = len; |
265 | *enc->cur++ = len; |
129 | } |
266 | } |
130 | else if (len <= 0xffff) |
267 | else if (len <= 0xffffU) |
131 | { |
268 | { |
132 | *enc->cur++ = major | 25; |
269 | *enc->cur++ = major | LENGTH_EXT2; |
133 | *enc->cur++ = len >> 8; |
270 | *enc->cur++ = len >> 8; |
134 | *enc->cur++ = len; |
271 | *enc->cur++ = len; |
135 | } |
272 | } |
136 | else if (len <= 0xffffffff) |
273 | else if (len <= 0xffffffffU) |
137 | { |
274 | { |
138 | *enc->cur++ = major | 26; |
275 | *enc->cur++ = major | LENGTH_EXT4; |
139 | *enc->cur++ = len >> 24; |
276 | *enc->cur++ = len >> 24; |
140 | *enc->cur++ = len >> 16; |
277 | *enc->cur++ = len >> 16; |
141 | *enc->cur++ = len >> 8; |
278 | *enc->cur++ = len >> 8; |
142 | *enc->cur++ = len; |
279 | *enc->cur++ = len; |
143 | } |
280 | } |
144 | else |
281 | else |
145 | { |
282 | { |
146 | *enc->cur++ = major | 27; |
283 | *enc->cur++ = major | LENGTH_EXT8; |
147 | *enc->cur++ = len >> 56; |
284 | *enc->cur++ = len >> 56; |
148 | *enc->cur++ = len >> 48; |
285 | *enc->cur++ = len >> 48; |
149 | *enc->cur++ = len >> 40; |
286 | *enc->cur++ = len >> 40; |
150 | *enc->cur++ = len >> 32; |
287 | *enc->cur++ = len >> 32; |
151 | *enc->cur++ = len >> 24; |
288 | *enc->cur++ = len >> 24; |
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153 | *enc->cur++ = len >> 8; |
290 | *enc->cur++ = len >> 8; |
154 | *enc->cur++ = len; |
291 | *enc->cur++ = len; |
155 | } |
292 | } |
156 | } |
293 | } |
157 | |
294 | |
158 | static void |
295 | // encodes a perl value into a CBOR integer |
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296 | ecb_inline void |
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297 | encode_int (enc_t *enc, SV *sv) |
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298 | { |
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299 | if (SvIsUV (sv)) |
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300 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
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301 | else if (SvIVX (sv) >= 0) |
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302 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
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303 | else |
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304 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
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305 | } |
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306 | |
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307 | ecb_inline void |
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308 | encode_tag (enc_t *enc, UV tag) |
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309 | { |
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310 | encode_uint (enc, MAJOR_TAG, tag); |
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311 | } |
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312 | |
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313 | // exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
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314 | ecb_noinline static void |
159 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
315 | encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
160 | { |
316 | { |
161 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
317 | STRLEN ulen = len; |
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318 | U8 *p, *pend = (U8 *)str + len; |
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319 | |
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320 | for (p = (U8 *)str; p < pend; ++p) |
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321 | ulen += *p >> 7; // count set high bits |
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322 | |
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323 | encode_uint (enc, MAJOR_TEXT, ulen); |
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324 | |
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325 | need (enc, ulen); |
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326 | for (p = (U8 *)str; p < pend; ++p) |
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327 | if (*p < 0x80) |
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328 | *enc->cur++ = *p; |
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329 | else |
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330 | { |
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331 | *enc->cur++ = 0xc0 + (*p >> 6); |
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332 | *enc->cur++ = 0x80 + (*p & 63); |
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333 | } |
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334 | } |
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335 | |
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336 | ecb_inline void |
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337 | encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
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338 | { |
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339 | if (ecb_expect_false (upgrade_utf8)) |
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340 | if (!utf8) |
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341 | { |
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342 | encode_str_utf8 (enc, utf8, str, len); |
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343 | return; |
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344 | } |
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345 | |
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346 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
162 | need (enc, len); |
347 | need (enc, len); |
163 | memcpy (enc->cur, str, len); |
348 | memcpy (enc->cur, str, len); |
164 | enc->cur += len; |
349 | enc->cur += len; |
165 | } |
350 | } |
166 | |
351 | |
167 | static void encode_sv (enc_t *enc, SV *sv); |
352 | ecb_inline void |
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353 | encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
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354 | { |
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355 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
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356 | { |
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357 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
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358 | |
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359 | if (SvOK (*svp)) |
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360 | { |
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361 | // already registered, use stringref |
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362 | encode_tag (enc, CBOR_TAG_STRINGREF); |
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363 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
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364 | return; |
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365 | } |
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366 | else if (len >= minimum_string_length (enc->stringref_idx)) |
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367 | { |
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368 | // register only |
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369 | sv_setuv (*svp, enc->stringref_idx); |
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370 | ++enc->stringref_idx; |
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371 | } |
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372 | } |
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373 | |
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374 | encode_str (enc, upgrade_utf8, utf8, str, len); |
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375 | } |
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376 | |
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377 | ecb_inline void |
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378 | encode_float16 (enc_t *enc, NV nv) |
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379 | { |
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380 | need (enc, 1+2); |
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381 | |
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382 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT16; |
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383 | |
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384 | uint16_t fp = ecb_float_to_binary16 (nv); |
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385 | |
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386 | if (!ecb_big_endian ()) |
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387 | fp = ecb_bswap16 (fp); |
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388 | |
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389 | memcpy (enc->cur, &fp, 2); |
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390 | enc->cur += 2; |
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391 | } |
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392 | |
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393 | ecb_inline void |
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394 | encode_float32 (enc_t *enc, NV nv) |
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395 | { |
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396 | need (enc, 1+4); |
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397 | |
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398 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
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399 | |
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400 | uint32_t fp = ecb_float_to_binary32 (nv); |
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401 | |
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402 | if (!ecb_big_endian ()) |
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403 | fp = ecb_bswap32 (fp); |
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404 | |
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405 | memcpy (enc->cur, &fp, 4); |
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406 | enc->cur += 4; |
|
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407 | } |
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408 | |
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409 | ecb_inline void |
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410 | encode_float64 (enc_t *enc, NV nv) |
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411 | { |
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412 | need (enc, 1+8); |
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413 | |
|
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414 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
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415 | |
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416 | uint64_t fp = ecb_double_to_binary64 (nv); |
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417 | |
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418 | if (!ecb_big_endian ()) |
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419 | fp = ecb_bswap64 (fp); |
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420 | |
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421 | memcpy (enc->cur, &fp, 8); |
|
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422 | enc->cur += 8; |
|
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423 | } |
|
|
424 | |
|
|
425 | ecb_inline void |
|
|
426 | encode_bool (enc_t *enc, int istrue) |
|
|
427 | { |
|
|
428 | encode_ch (enc, istrue ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
|
|
429 | } |
|
|
430 | |
|
|
431 | // encodes an arrayref containing key-value pairs as CBOR map |
|
|
432 | ecb_inline void |
|
|
433 | encode_array_as_map (enc_t *enc, SV *sv) |
|
|
434 | { |
|
|
435 | if (enc->depth >= enc->cbor.max_depth) |
|
|
436 | croak (ERR_NESTING_EXCEEDED); |
|
|
437 | |
|
|
438 | ++enc->depth; |
|
|
439 | |
|
|
440 | // as_map does error checking for us, but we re-check in case |
|
|
441 | // things have changed. |
|
|
442 | |
|
|
443 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
|
|
444 | croak ("CBOR::XS::as_map requires an array reference (did you change the array after calling as_map?)"); |
|
|
445 | |
|
|
446 | AV *av = (AV *)SvRV (sv); |
|
|
447 | int i, len = av_len (av); |
|
|
448 | |
|
|
449 | if (!(len & 1)) |
|
|
450 | croak ("CBOR::XS::as_map requires an even number of elements (did you change the array after calling as_map?)"); |
|
|
451 | |
|
|
452 | encode_uint (enc, MAJOR_MAP, (len + 1) >> 1); |
|
|
453 | |
|
|
454 | for (i = 0; i <= len; ++i) |
|
|
455 | { |
|
|
456 | SV **svp = av_fetch (av, i, 0); |
|
|
457 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
|
|
458 | } |
|
|
459 | |
|
|
460 | --enc->depth; |
|
|
461 | } |
|
|
462 | |
|
|
463 | ecb_inline void |
|
|
464 | encode_forced (enc_t *enc, UV type, SV *sv) |
|
|
465 | { |
|
|
466 | switch (type) |
|
|
467 | { |
|
|
468 | case AS_CBOR: |
|
|
469 | { |
|
|
470 | STRLEN len; |
|
|
471 | char *str = SvPVbyte (sv, len); |
|
|
472 | |
|
|
473 | need (enc, len); |
|
|
474 | memcpy (enc->cur, str, len); |
|
|
475 | enc->cur += len; |
|
|
476 | } |
|
|
477 | break; |
|
|
478 | |
|
|
479 | case AS_BYTES: |
|
|
480 | { |
|
|
481 | STRLEN len; |
|
|
482 | char *str = SvPVbyte (sv, len); |
|
|
483 | encode_strref (enc, 0, 0, str, len); |
|
|
484 | } |
|
|
485 | break; |
|
|
486 | |
|
|
487 | case AS_TEXT: |
|
|
488 | { |
|
|
489 | STRLEN len; |
|
|
490 | char *str = SvPVutf8 (sv, len); |
|
|
491 | encode_strref (enc, 1, 1, str, len); |
|
|
492 | } |
|
|
493 | break; |
|
|
494 | |
|
|
495 | case AS_INT: encode_int (enc, sv); break; |
|
|
496 | |
|
|
497 | case AS_FLOAT16: encode_float16 (enc, SvNV (sv)); break; |
|
|
498 | case AS_FLOAT32: encode_float32 (enc, SvNV (sv)); break; |
|
|
499 | case AS_FLOAT64: encode_float64 (enc, SvNV (sv)); break; |
|
|
500 | |
|
|
501 | case AS_MAP: encode_array_as_map (enc, sv); break; |
|
|
502 | |
|
|
503 | default: |
|
|
504 | croak ("encountered malformed CBOR::XS::Tagged object"); |
|
|
505 | } |
|
|
506 | } |
168 | |
507 | |
169 | static void |
508 | static void |
170 | encode_av (enc_t *enc, AV *av) |
509 | encode_av (enc_t *enc, AV *av) |
171 | { |
510 | { |
172 | int i, len = av_len (av); |
511 | int i, len = av_len (av); |
… | |
… | |
174 | if (enc->depth >= enc->cbor.max_depth) |
513 | if (enc->depth >= enc->cbor.max_depth) |
175 | croak (ERR_NESTING_EXCEEDED); |
514 | croak (ERR_NESTING_EXCEEDED); |
176 | |
515 | |
177 | ++enc->depth; |
516 | ++enc->depth; |
178 | |
517 | |
179 | encode_uint (enc, 0x80, len + 1); |
518 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
180 | |
519 | |
|
|
520 | if (ecb_expect_false (SvMAGICAL (av))) |
181 | for (i = 0; i <= len; ++i) |
521 | for (i = 0; i <= len; ++i) |
182 | { |
522 | { |
183 | SV **svp = av_fetch (av, i, 0); |
523 | SV **svp = av_fetch (av, i, 0); |
184 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
524 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
185 | } |
525 | } |
|
|
526 | else |
|
|
527 | for (i = 0; i <= len; ++i) |
|
|
528 | { |
|
|
529 | SV *sv = AvARRAY (av)[i]; |
|
|
530 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
|
|
531 | } |
186 | |
532 | |
187 | --enc->depth; |
533 | --enc->depth; |
188 | } |
534 | } |
189 | |
535 | |
190 | static void |
536 | static void |
… | |
… | |
198 | ++enc->depth; |
544 | ++enc->depth; |
199 | |
545 | |
200 | int pairs = hv_iterinit (hv); |
546 | int pairs = hv_iterinit (hv); |
201 | int mg = SvMAGICAL (hv); |
547 | int mg = SvMAGICAL (hv); |
202 | |
548 | |
203 | if (mg) |
549 | if (ecb_expect_false (mg)) |
204 | encode_ch (enc, 0xa0 | 31); |
550 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
205 | else |
551 | else |
206 | encode_uint (enc, 0xa0, pairs); |
552 | encode_uint (enc, MAJOR_MAP, pairs); |
207 | |
553 | |
208 | while ((he = hv_iternext (hv))) |
554 | while ((he = hv_iternext (hv))) |
209 | { |
555 | { |
210 | if (HeKLEN (he) == HEf_SVKEY) |
556 | if (HeKLEN (he) == HEf_SVKEY) |
211 | encode_sv (enc, HeSVKEY (he)); |
557 | encode_sv (enc, HeSVKEY (he)); |
212 | else |
558 | else |
213 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
559 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
214 | |
560 | |
215 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
561 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
216 | } |
562 | } |
217 | |
563 | |
218 | if (mg) |
564 | if (ecb_expect_false (mg)) |
219 | encode_ch (enc, 0xe0 | 31); |
565 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
220 | |
566 | |
221 | --enc->depth; |
567 | --enc->depth; |
222 | } |
568 | } |
223 | |
569 | |
224 | // encode objects, arrays and special \0=false and \1=true values. |
570 | // encode objects, arrays and special \0=false and \1=true values. |
225 | static void |
571 | static void |
226 | encode_rv (enc_t *enc, SV *sv) |
572 | encode_rv (enc_t *enc, SV *sv) |
227 | { |
573 | { |
228 | svtype svt; |
|
|
229 | |
|
|
230 | SvGETMAGIC (sv); |
574 | SvGETMAGIC (sv); |
|
|
575 | |
231 | svt = SvTYPE (sv); |
576 | svtype svt = SvTYPE (sv); |
232 | |
577 | |
233 | if (ecb_expect_false (SvOBJECT (sv))) |
578 | if (ecb_expect_false (SvOBJECT (sv))) |
234 | { |
579 | { |
235 | HV *boolean_stash = !CBOR_SLOW || cbor_boolean_stash |
580 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
236 | ? cbor_boolean_stash |
581 | ? types_boolean_stash |
237 | : gv_stashpv ("CBOR::XS::Boolean", 1); |
582 | : gv_stashpv ("Types::Serialiser::Boolean", 1); |
|
|
583 | HV *error_stash = !CBOR_SLOW || types_error_stash |
|
|
584 | ? types_error_stash |
|
|
585 | : gv_stashpv ("Types::Serialiser::Error", 1); |
238 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
586 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
239 | ? cbor_tagged_stash |
587 | ? cbor_tagged_stash |
240 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
588 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
241 | |
589 | |
|
|
590 | HV *stash = SvSTASH (sv); |
|
|
591 | |
242 | if (SvSTASH (sv) == boolean_stash) |
592 | if (stash == boolean_stash) |
243 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
593 | { |
|
|
594 | encode_bool (enc, SvIV (sv)); |
|
|
595 | return; |
|
|
596 | } |
|
|
597 | else if (stash == error_stash) |
|
|
598 | { |
|
|
599 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
|
|
600 | return; |
|
|
601 | } |
244 | else if (SvSTASH (sv) == tagged_stash) |
602 | else if (stash == tagged_stash) |
245 | { |
603 | { |
246 | if (svt != SVt_PVAV) |
604 | if (svt != SVt_PVAV) |
247 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
605 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
248 | |
606 | |
|
|
607 | switch (av_len ((AV *)sv)) |
|
|
608 | { |
|
|
609 | case 2-1: |
|
|
610 | // actually a tagged value |
249 | encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
611 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
250 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
612 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
|
|
613 | break; |
|
|
614 | |
|
|
615 | case 3-1: |
|
|
616 | // a forced type [value, type, undef] |
|
|
617 | encode_forced (enc, SvUV (*av_fetch ((AV *)sv, 1, 1)), *av_fetch ((AV *)sv, 0, 1)); |
|
|
618 | break; |
|
|
619 | |
|
|
620 | default: |
|
|
621 | croak ("encountered malformed CBOR::XS::Tagged object"); |
|
|
622 | } |
|
|
623 | |
|
|
624 | return; |
|
|
625 | } |
|
|
626 | } |
|
|
627 | |
|
|
628 | if (ecb_expect_false (SvREFCNT (sv) > 1) |
|
|
629 | && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
|
|
630 | { |
|
|
631 | if (ecb_expect_false (!enc->shareable)) |
|
|
632 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
633 | |
|
|
634 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
|
|
635 | |
|
|
636 | if (SvOK (*svp)) |
|
|
637 | { |
|
|
638 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
639 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
|
|
640 | return; |
251 | } |
641 | } |
252 | else |
642 | else |
253 | { |
643 | { |
|
|
644 | sv_setuv (*svp, enc->shareable_idx); |
|
|
645 | ++enc->shareable_idx; |
|
|
646 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
647 | } |
|
|
648 | } |
|
|
649 | |
|
|
650 | if (ecb_expect_false (SvOBJECT (sv))) |
|
|
651 | { |
|
|
652 | HV *stash = SvSTASH (sv); |
|
|
653 | GV *method; |
|
|
654 | |
|
|
655 | if (enc->cbor.flags & F_FORBID_OBJECTS) |
|
|
656 | croak ("encountered object '%s', but forbid_objects is enabled", |
|
|
657 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
658 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
|
|
659 | { |
|
|
660 | dSP; |
|
|
661 | |
|
|
662 | ENTER; SAVETMPS; |
|
|
663 | PUSHMARK (SP); |
254 | // we re-bless the reference to get overload and other niceties right |
664 | // we re-bless the reference to get overload and other niceties right |
255 | GV *to_cbor = gv_fetchmethod_autoload (SvSTASH (sv), "TO_CBOR", 0); |
|
|
256 | |
|
|
257 | if (to_cbor) |
|
|
258 | { |
|
|
259 | dSP; |
|
|
260 | |
|
|
261 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
262 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
665 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
263 | |
666 | |
264 | // calling with G_SCALAR ensures that we always get a 1 return value |
|
|
265 | PUTBACK; |
667 | PUTBACK; |
|
|
668 | // G_SCALAR ensures that return value is 1 |
266 | call_sv ((SV *)GvCV (to_cbor), G_SCALAR); |
669 | call_sv ((SV *)GvCV (method), G_SCALAR); |
267 | SPAGAIN; |
670 | SPAGAIN; |
268 | |
671 | |
269 | // catch this surprisingly common error |
672 | // catch this surprisingly common error |
270 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
673 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
271 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
674 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
272 | |
675 | |
273 | sv = POPs; |
676 | encode_sv (enc, POPs); |
|
|
677 | |
274 | PUTBACK; |
678 | PUTBACK; |
275 | |
679 | |
276 | encode_sv (enc, sv); |
|
|
277 | |
|
|
278 | FREETMPS; LEAVE; |
680 | FREETMPS; LEAVE; |
|
|
681 | } |
|
|
682 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
|
|
683 | { |
|
|
684 | dSP; |
|
|
685 | |
|
|
686 | ENTER; SAVETMPS; |
|
|
687 | PUSHMARK (SP); |
|
|
688 | EXTEND (SP, 2); |
|
|
689 | // we re-bless the reference to get overload and other niceties right |
|
|
690 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
|
|
691 | PUSHs (sv_cbor); |
|
|
692 | |
|
|
693 | PUTBACK; |
|
|
694 | int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
|
|
695 | SPAGAIN; |
|
|
696 | |
|
|
697 | // catch this surprisingly common error |
|
|
698 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
699 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
|
|
700 | |
|
|
701 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
|
|
702 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
|
|
703 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
|
|
704 | |
|
|
705 | { |
|
|
706 | int i; |
|
|
707 | |
|
|
708 | for (i = 0; i < count; ++i) |
|
|
709 | encode_sv (enc, SP[i + 1 - count]); |
|
|
710 | |
|
|
711 | SP -= count; |
279 | } |
712 | } |
|
|
713 | |
|
|
714 | PUTBACK; |
|
|
715 | |
|
|
716 | FREETMPS; LEAVE; |
|
|
717 | } |
280 | else |
718 | else |
281 | croak ("encountered object '%s', but no TO_CBOR method available on it", |
719 | croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
282 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
720 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
283 | } |
|
|
284 | } |
721 | } |
285 | else if (svt == SVt_PVHV) |
722 | else if (svt == SVt_PVHV) |
286 | encode_hv (enc, (HV *)sv); |
723 | encode_hv (enc, (HV *)sv); |
287 | else if (svt == SVt_PVAV) |
724 | else if (svt == SVt_PVAV) |
288 | encode_av (enc, (AV *)sv); |
725 | encode_av (enc, (AV *)sv); |
289 | else if (svt < SVt_PVAV) |
|
|
290 | { |
|
|
291 | STRLEN len = 0; |
|
|
292 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
293 | |
|
|
294 | if (len == 1 && *pv == '1') |
|
|
295 | encode_ch (enc, 0xe0 | 21); |
|
|
296 | else if (len == 1 && *pv == '0') |
|
|
297 | encode_ch (enc, 0xe0 | 20); |
|
|
298 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
299 | encode_ch (enc, 0xe0 | 23); |
|
|
300 | else |
|
|
301 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
|
|
302 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
303 | } |
|
|
304 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
305 | encode_ch (enc, 0xe0 | 23); |
|
|
306 | else |
726 | else |
307 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
727 | { |
308 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
728 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
729 | encode_sv (enc, sv); |
|
|
730 | } |
309 | } |
731 | } |
310 | |
732 | |
311 | static void |
733 | static void |
312 | encode_nv (enc_t *enc, SV *sv) |
734 | encode_nv (enc_t *enc, SV *sv) |
313 | { |
735 | { |
314 | double nv = SvNVX (sv); |
736 | double nv = SvNVX (sv); |
315 | |
737 | |
316 | need (enc, 9); |
738 | need (enc, 9); |
317 | |
739 | |
318 | if (ecb_expect_false (nv == (U32)nv)) |
740 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
319 | encode_uint (enc, 0x00, (U32)nv); |
741 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
320 | //TODO: maybe I32? |
742 | //TODO: maybe I32? |
321 | else if (ecb_expect_false (nv == (float)nv)) |
743 | else if (ecb_expect_false (nv == (float)nv)) |
322 | { |
744 | encode_float32 (enc, nv); |
323 | uint32_t fp = ecb_float_to_binary32 (nv); |
|
|
324 | |
|
|
325 | *enc->cur++ = 0xe0 | 26; |
|
|
326 | |
|
|
327 | if (!ecb_big_endian ()) |
|
|
328 | fp = ecb_bswap32 (fp); |
|
|
329 | |
|
|
330 | memcpy (enc->cur, &fp, 4); |
|
|
331 | enc->cur += 4; |
|
|
332 | } |
|
|
333 | else |
745 | else |
334 | { |
746 | encode_float64 (enc, nv); |
335 | uint64_t fp = ecb_double_to_binary64 (nv); |
|
|
336 | |
|
|
337 | *enc->cur++ = 0xe0 | 27; |
|
|
338 | |
|
|
339 | if (!ecb_big_endian ()) |
|
|
340 | fp = ecb_bswap64 (fp); |
|
|
341 | |
|
|
342 | memcpy (enc->cur, &fp, 8); |
|
|
343 | enc->cur += 8; |
|
|
344 | } |
|
|
345 | } |
747 | } |
346 | |
748 | |
347 | static void |
749 | static void |
348 | encode_sv (enc_t *enc, SV *sv) |
750 | encode_sv (enc_t *enc, SV *sv) |
349 | { |
751 | { |
… | |
… | |
351 | |
753 | |
352 | if (SvPOKp (sv)) |
754 | if (SvPOKp (sv)) |
353 | { |
755 | { |
354 | STRLEN len; |
756 | STRLEN len; |
355 | char *str = SvPV (sv, len); |
757 | char *str = SvPV (sv, len); |
356 | encode_str (enc, SvUTF8 (sv), str, len); |
758 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
357 | } |
759 | } |
358 | else if (SvNOKp (sv)) |
760 | else if (SvNOKp (sv)) |
359 | encode_nv (enc, sv); |
761 | encode_nv (enc, sv); |
360 | else if (SvIOKp (sv)) |
762 | else if (SvIOKp (sv)) |
361 | { |
763 | encode_int (enc, sv); |
362 | if (SvIsUV (sv)) |
|
|
363 | encode_uint (enc, 0x00, SvUVX (sv)); |
|
|
364 | else if (SvIVX (sv) >= 0) |
|
|
365 | encode_uint (enc, 0x00, SvIVX (sv)); |
|
|
366 | else |
|
|
367 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
|
|
368 | } |
|
|
369 | else if (SvROK (sv)) |
764 | else if (SvROK (sv)) |
370 | encode_rv (enc, SvRV (sv)); |
765 | encode_rv (enc, SvRV (sv)); |
371 | else if (!SvOK (sv)) |
766 | else if (!SvOK (sv)) |
372 | encode_ch (enc, 0xe0 | 22); |
767 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
373 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
768 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
374 | encode_ch (enc, 0xe0 | 23); |
769 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
375 | else |
770 | else |
376 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
771 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
377 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
772 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
378 | } |
773 | } |
379 | |
774 | |
380 | static SV * |
775 | static SV * |
381 | encode_cbor (SV *scalar, CBOR *cbor) |
776 | encode_cbor (SV *scalar, CBOR *cbor) |
382 | { |
777 | { |
383 | enc_t enc; |
778 | enc_t enc = { 0 }; |
384 | |
779 | |
385 | enc.cbor = *cbor; |
780 | enc.cbor = *cbor; |
386 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
781 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
387 | enc.cur = SvPVX (enc.sv); |
782 | enc.cur = SvPVX (enc.sv); |
388 | enc.end = SvEND (enc.sv); |
783 | enc.end = SvEND (enc.sv); |
389 | enc.depth = 0; |
|
|
390 | |
784 | |
391 | SvPOK_only (enc.sv); |
785 | SvPOK_only (enc.sv); |
|
|
786 | |
|
|
787 | if (cbor->flags & F_PACK_STRINGS) |
|
|
788 | { |
|
|
789 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
790 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
791 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
792 | } |
|
|
793 | |
392 | encode_sv (&enc, scalar); |
794 | encode_sv (&enc, scalar); |
393 | |
795 | |
394 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
796 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
395 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
797 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
396 | |
798 | |
… | |
… | |
410 | U8 *end; // end of input string |
812 | U8 *end; // end of input string |
411 | const char *err; // parse error, if != 0 |
813 | const char *err; // parse error, if != 0 |
412 | CBOR cbor; |
814 | CBOR cbor; |
413 | U32 depth; // recursion depth |
815 | U32 depth; // recursion depth |
414 | U32 maxdepth; // recursion depth limit |
816 | U32 maxdepth; // recursion depth limit |
|
|
817 | AV *shareable; |
|
|
818 | AV *stringref; |
|
|
819 | SV *decode_tagged; |
|
|
820 | SV *err_sv; // optional sv for error, needs to be freed |
415 | } dec_t; |
821 | } dec_t; |
416 | |
822 | |
417 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
823 | // set dec->err to ERRSV |
|
|
824 | ecb_cold static void |
|
|
825 | err_errsv (dec_t *dec) |
|
|
826 | { |
|
|
827 | if (!dec->err) |
|
|
828 | { |
|
|
829 | dec->err_sv = newSVsv (ERRSV); |
418 | |
830 | |
419 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
831 | // chop off the trailing \n |
|
|
832 | SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1); |
|
|
833 | *SvEND (dec->err_sv) = 0; |
420 | |
834 | |
|
|
835 | dec->err = SvPVutf8_nolen (dec->err_sv); |
|
|
836 | } |
|
|
837 | } |
|
|
838 | |
|
|
839 | // the following functions are used to reduce code size and help the compiler to optimise |
|
|
840 | ecb_cold static void |
|
|
841 | err_set (dec_t *dec, const char *reason) |
|
|
842 | { |
|
|
843 | if (!dec->err) |
|
|
844 | dec->err = reason; |
|
|
845 | } |
|
|
846 | |
|
|
847 | ecb_cold static void |
|
|
848 | err_unexpected_end (dec_t *dec) |
|
|
849 | { |
|
|
850 | err_set (dec, "unexpected end of CBOR data"); |
|
|
851 | } |
|
|
852 | |
|
|
853 | #define ERR_DO(do) SB do; goto fail; SE |
|
|
854 | #define ERR(reason) ERR_DO (err_set (dec, reason)) |
|
|
855 | #define ERR_ERRSV ERR_DO (err_errsv (dec)) |
|
|
856 | |
|
|
857 | #define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec)) |
|
|
858 | |
421 | #define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
859 | #define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
422 | #define DEC_DEC_DEPTH --dec->depth |
860 | #define DEC_DEC_DEPTH --dec->depth |
423 | |
861 | |
424 | static UV |
862 | static UV |
425 | decode_uint (dec_t *dec) |
863 | decode_uint (dec_t *dec) |
426 | { |
864 | { |
427 | switch (*dec->cur & 31) |
865 | U8 m = *dec->cur & MINOR_MASK; |
428 | { |
866 | ++dec->cur; |
429 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
|
|
430 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
|
|
431 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
|
|
432 | return *dec->cur++ & 31; |
|
|
433 | |
867 | |
434 | case 24: |
868 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
869 | return m; |
|
|
870 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
|
|
871 | { |
435 | WANT (2); |
872 | WANT (1); |
436 | dec->cur += 2; |
873 | dec->cur += 1; |
437 | return dec->cur[-1]; |
874 | return dec->cur[-1]; |
438 | |
875 | } |
439 | case 25: |
876 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
877 | { |
440 | WANT (3); |
878 | WANT (2); |
441 | dec->cur += 3; |
879 | dec->cur += 2; |
442 | return (((UV)dec->cur[-2]) << 8) |
880 | return (((UV)dec->cur[-2]) << 8) |
443 | | ((UV)dec->cur[-1]); |
881 | | ((UV)dec->cur[-1]); |
444 | |
882 | } |
445 | case 26: |
883 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
884 | { |
446 | WANT (5); |
885 | WANT (4); |
447 | dec->cur += 5; |
886 | dec->cur += 4; |
448 | return (((UV)dec->cur[-4]) << 24) |
887 | return (((UV)dec->cur[-4]) << 24) |
449 | | (((UV)dec->cur[-3]) << 16) |
888 | | (((UV)dec->cur[-3]) << 16) |
450 | | (((UV)dec->cur[-2]) << 8) |
889 | | (((UV)dec->cur[-2]) << 8) |
451 | | ((UV)dec->cur[-1]); |
890 | | ((UV)dec->cur[-1]); |
452 | |
891 | } |
453 | case 27: |
892 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
893 | { |
454 | WANT (9); |
894 | WANT (8); |
455 | dec->cur += 9; |
895 | dec->cur += 8; |
|
|
896 | |
|
|
897 | return |
|
|
898 | #if UVSIZE < 8 |
|
|
899 | 0 |
|
|
900 | #else |
456 | return (((UV)dec->cur[-8]) << 56) |
901 | (((UV)dec->cur[-8]) << 56) |
457 | | (((UV)dec->cur[-7]) << 48) |
902 | | (((UV)dec->cur[-7]) << 48) |
458 | | (((UV)dec->cur[-6]) << 40) |
903 | | (((UV)dec->cur[-6]) << 40) |
459 | | (((UV)dec->cur[-5]) << 32) |
904 | | (((UV)dec->cur[-5]) << 32) |
|
|
905 | #endif |
460 | | (((UV)dec->cur[-4]) << 24) |
906 | | (((UV)dec->cur[-4]) << 24) |
461 | | (((UV)dec->cur[-3]) << 16) |
907 | | (((UV)dec->cur[-3]) << 16) |
462 | | (((UV)dec->cur[-2]) << 8) |
908 | | (((UV)dec->cur[-2]) << 8) |
463 | | ((UV)dec->cur[-1]); |
909 | | ((UV)dec->cur[-1]); |
464 | |
910 | } |
465 | default: |
911 | else |
466 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
912 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
467 | } |
|
|
468 | |
913 | |
469 | fail: |
914 | fail: |
470 | return 0; |
915 | return 0; |
471 | } |
916 | } |
472 | |
917 | |
… | |
… | |
477 | { |
922 | { |
478 | AV *av = newAV (); |
923 | AV *av = newAV (); |
479 | |
924 | |
480 | DEC_INC_DEPTH; |
925 | DEC_INC_DEPTH; |
481 | |
926 | |
482 | if ((*dec->cur & 31) == 31) |
927 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
483 | { |
928 | { |
484 | ++dec->cur; |
929 | ++dec->cur; |
485 | |
930 | |
486 | for (;;) |
931 | for (;;) |
487 | { |
932 | { |
488 | WANT (1); |
933 | WANT (1); |
489 | |
934 | |
490 | if (*dec->cur == (0xe0 | 31)) |
935 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
491 | { |
936 | { |
492 | ++dec->cur; |
937 | ++dec->cur; |
493 | break; |
938 | break; |
494 | } |
939 | } |
495 | |
940 | |
496 | av_push (av, decode_sv (dec)); |
941 | av_push (av, decode_sv (dec)); |
497 | } |
942 | } |
498 | } |
943 | } |
499 | else |
944 | else |
500 | { |
945 | { |
501 | int i, len = decode_uint (dec); |
946 | UV i, len = decode_uint (dec); |
502 | |
947 | |
|
|
948 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
503 | av_fill (av, len - 1); |
949 | av_fill (av, len - 1); |
504 | |
950 | |
505 | for (i = 0; i < len; ++i) |
951 | for (i = 0; i < len; ++i) |
506 | AvARRAY (av)[i] = decode_sv (dec); |
952 | AvARRAY (av)[i] = decode_sv (dec); |
507 | } |
953 | } |
508 | |
954 | |
509 | DEC_DEC_DEPTH; |
955 | DEC_DEC_DEPTH; |
510 | return newRV_noinc ((SV *)av); |
956 | return newRV_noinc ((SV *)av); |
511 | |
957 | |
512 | fail: |
958 | fail: |
513 | SvREFCNT_dec (av); |
959 | SvREFCNT_dec_NN (av); |
514 | DEC_DEC_DEPTH; |
960 | DEC_DEC_DEPTH; |
515 | return &PL_sv_undef; |
961 | return &PL_sv_undef; |
516 | } |
962 | } |
517 | |
963 | |
|
|
964 | static void |
|
|
965 | decode_he (dec_t *dec, HV *hv) |
|
|
966 | { |
|
|
967 | // for speed reasons, we specialcase single-string |
|
|
968 | // byte or utf-8 strings as keys, but only when !stringref |
|
|
969 | |
|
|
970 | if (ecb_expect_true (!dec->stringref)) |
|
|
971 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
|
|
972 | { |
|
|
973 | STRLEN len = decode_uint (dec); |
|
|
974 | char *key = (char *)dec->cur; |
|
|
975 | |
|
|
976 | WANT (len); |
|
|
977 | dec->cur += len; |
|
|
978 | |
|
|
979 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
980 | |
|
|
981 | return; |
|
|
982 | } |
|
|
983 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
|
|
984 | { |
|
|
985 | STRLEN len = decode_uint (dec); |
|
|
986 | char *key = (char *)dec->cur; |
|
|
987 | |
|
|
988 | WANT (len); |
|
|
989 | dec->cur += len; |
|
|
990 | |
|
|
991 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
992 | if (!is_utf8_string (key, len)) |
|
|
993 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
|
|
994 | |
|
|
995 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
996 | |
|
|
997 | return; |
|
|
998 | } |
|
|
999 | |
|
|
1000 | SV *k = decode_sv (dec); |
|
|
1001 | SV *v = decode_sv (dec); |
|
|
1002 | |
|
|
1003 | // we leak memory if uncaught exceptions are thrown by random magical |
|
|
1004 | // methods, and this is hopefully the only place where it can happen, |
|
|
1005 | // so if there is a chance of an exception, take the very slow path. |
|
|
1006 | // since catching exceptions is "undocumented/internal/forbidden" by |
|
|
1007 | // the new p5p powers, we need to call out to a perl function :/ |
|
|
1008 | if (ecb_expect_false (SvAMAGIC (k))) |
|
|
1009 | { |
|
|
1010 | dSP; |
|
|
1011 | |
|
|
1012 | ENTER; SAVETMPS; |
|
|
1013 | PUSHMARK (SP); |
|
|
1014 | EXTEND (SP, 3); |
|
|
1015 | PUSHs (sv_2mortal (newRV_inc ((SV *)hv))); |
|
|
1016 | PUSHs (sv_2mortal (k)); |
|
|
1017 | PUSHs (sv_2mortal (v)); |
|
|
1018 | |
|
|
1019 | PUTBACK; |
|
|
1020 | call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL); |
|
|
1021 | SPAGAIN; |
|
|
1022 | |
|
|
1023 | FREETMPS; LEAVE; |
|
|
1024 | |
|
|
1025 | if (SvTRUE (ERRSV)) |
|
|
1026 | ERR_ERRSV; |
|
|
1027 | |
|
|
1028 | return; |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | hv_store_ent (hv, k, v, 0); |
|
|
1032 | SvREFCNT_dec_NN (k); |
|
|
1033 | |
|
|
1034 | fail: |
|
|
1035 | ; |
|
|
1036 | } |
|
|
1037 | |
518 | static SV * |
1038 | static SV * |
519 | decode_hv (dec_t *dec) |
1039 | decode_hv (dec_t *dec) |
520 | { |
1040 | { |
521 | HV *hv = newHV (); |
1041 | HV *hv = newHV (); |
522 | |
1042 | |
523 | DEC_INC_DEPTH; |
1043 | DEC_INC_DEPTH; |
524 | |
1044 | |
525 | if ((*dec->cur & 31) == 31) |
1045 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
526 | { |
1046 | { |
527 | ++dec->cur; |
1047 | ++dec->cur; |
528 | |
1048 | |
529 | for (;;) |
1049 | for (;;) |
530 | { |
1050 | { |
531 | WANT (1); |
1051 | WANT (1); |
532 | |
1052 | |
533 | if (*dec->cur == (0xe0 | 31)) |
1053 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
534 | { |
1054 | { |
535 | ++dec->cur; |
1055 | ++dec->cur; |
536 | break; |
1056 | break; |
537 | } |
1057 | } |
538 | |
1058 | |
539 | SV *k = decode_sv (dec); |
1059 | decode_he (dec, hv); |
540 | SV *v = decode_sv (dec); |
|
|
541 | |
|
|
542 | hv_store_ent (hv, k, v, 0); |
|
|
543 | } |
1060 | } |
544 | } |
1061 | } |
545 | else |
1062 | else |
546 | { |
1063 | { |
547 | int len = decode_uint (dec); |
1064 | UV pairs = decode_uint (dec); |
548 | |
1065 | |
|
|
1066 | WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes |
|
|
1067 | |
549 | while (len--) |
1068 | while (pairs--) |
550 | { |
1069 | decode_he (dec, hv); |
551 | SV *k = decode_sv (dec); |
|
|
552 | SV *v = decode_sv (dec); |
|
|
553 | |
|
|
554 | hv_store_ent (hv, k, v, 0); |
|
|
555 | } |
|
|
556 | } |
1070 | } |
557 | |
1071 | |
558 | DEC_DEC_DEPTH; |
1072 | DEC_DEC_DEPTH; |
559 | return newRV_noinc ((SV *)hv); |
1073 | return newRV_noinc ((SV *)hv); |
560 | |
1074 | |
561 | fail: |
1075 | fail: |
562 | SvREFCNT_dec (hv); |
1076 | SvREFCNT_dec_NN (hv); |
563 | DEC_DEC_DEPTH; |
1077 | DEC_DEC_DEPTH; |
564 | return &PL_sv_undef; |
1078 | return &PL_sv_undef; |
565 | } |
1079 | } |
566 | |
1080 | |
567 | static SV * |
1081 | static SV * |
568 | decode_str (dec_t *dec, int utf8) |
1082 | decode_str (dec_t *dec, int utf8) |
569 | { |
1083 | { |
570 | SV *sv = 0; |
1084 | SV *sv = 0; |
571 | |
1085 | |
572 | if ((*dec->cur & 31) == 31) |
1086 | if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF)) |
573 | { |
1087 | { |
|
|
1088 | // indefinite length strings |
574 | ++dec->cur; |
1089 | ++dec->cur; |
575 | |
1090 | |
|
|
1091 | U8 major = *dec->cur & MAJOR_MISC; |
|
|
1092 | |
576 | sv = newSVpvn ("", 0); |
1093 | sv = newSVpvn ("", 0); |
577 | |
1094 | |
578 | // not very fast, and certainly not robust against illegal input |
|
|
579 | for (;;) |
1095 | for (;;) |
580 | { |
1096 | { |
581 | WANT (1); |
1097 | WANT (1); |
582 | |
1098 | |
583 | if (*dec->cur == (0xe0 | 31)) |
1099 | if ((*dec->cur - major) > LENGTH_EXT8) |
|
|
1100 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
584 | { |
1101 | { |
585 | ++dec->cur; |
1102 | ++dec->cur; |
586 | break; |
1103 | break; |
587 | } |
1104 | } |
|
|
1105 | else |
|
|
1106 | ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
588 | |
1107 | |
589 | sv_catsv (sv, decode_sv (dec)); |
1108 | STRLEN len = decode_uint (dec); |
|
|
1109 | |
|
|
1110 | WANT (len); |
|
|
1111 | sv_catpvn (sv, dec->cur, len); |
|
|
1112 | dec->cur += len; |
590 | } |
1113 | } |
591 | } |
1114 | } |
592 | else |
1115 | else |
593 | { |
1116 | { |
594 | STRLEN len = decode_uint (dec); |
1117 | STRLEN len = decode_uint (dec); |
595 | |
1118 | |
596 | WANT (len); |
1119 | WANT (len); |
597 | sv = newSVpvn (dec->cur, len); |
1120 | sv = newSVpvn (dec->cur, len); |
598 | dec->cur += len; |
1121 | dec->cur += len; |
|
|
1122 | |
|
|
1123 | if (ecb_expect_false (dec->stringref) |
|
|
1124 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
1125 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
599 | } |
1126 | } |
600 | |
1127 | |
601 | if (utf8) |
1128 | if (utf8) |
|
|
1129 | { |
|
|
1130 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
1131 | if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
1132 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
1133 | |
602 | SvUTF8_on (sv); |
1134 | SvUTF8_on (sv); |
|
|
1135 | } |
603 | |
1136 | |
604 | return sv; |
1137 | return sv; |
605 | |
1138 | |
606 | fail: |
1139 | fail: |
607 | SvREFCNT_dec (sv); |
1140 | SvREFCNT_dec (sv); |
… | |
… | |
609 | } |
1142 | } |
610 | |
1143 | |
611 | static SV * |
1144 | static SV * |
612 | decode_tagged (dec_t *dec) |
1145 | decode_tagged (dec_t *dec) |
613 | { |
1146 | { |
|
|
1147 | SV *sv = 0; |
614 | UV tag = decode_uint (dec); |
1148 | UV tag = decode_uint (dec); |
|
|
1149 | |
|
|
1150 | WANT (1); |
|
|
1151 | |
|
|
1152 | switch (tag) |
|
|
1153 | { |
|
|
1154 | case CBOR_TAG_MAGIC: |
615 | SV *sv = decode_sv (dec); |
1155 | sv = decode_sv (dec); |
|
|
1156 | break; |
616 | |
1157 | |
617 | if (tag == 55799) // 2.4.5 Self-Describe CBOR |
1158 | case CBOR_TAG_INDIRECTION: |
|
|
1159 | sv = newRV_noinc (decode_sv (dec)); |
|
|
1160 | break; |
|
|
1161 | |
|
|
1162 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
1163 | { |
|
|
1164 | // do not use SAVETMPS/FREETMPS, as these will |
|
|
1165 | // erase mortalised caches, e.g. "shareable" |
|
|
1166 | ENTER; |
|
|
1167 | |
|
|
1168 | SAVESPTR (dec->stringref); |
|
|
1169 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
1170 | |
|
|
1171 | sv = decode_sv (dec); |
|
|
1172 | |
|
|
1173 | LEAVE; |
|
|
1174 | } |
|
|
1175 | break; |
|
|
1176 | |
|
|
1177 | case CBOR_TAG_STRINGREF: |
|
|
1178 | { |
|
|
1179 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
1180 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
1181 | |
|
|
1182 | UV idx = decode_uint (dec); |
|
|
1183 | |
|
|
1184 | if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref))) |
|
|
1185 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
1186 | |
|
|
1187 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
1188 | } |
|
|
1189 | break; |
|
|
1190 | |
|
|
1191 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
1192 | { |
|
|
1193 | if (ecb_expect_false (!dec->shareable)) |
|
|
1194 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
1195 | |
|
|
1196 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
1197 | { |
|
|
1198 | sv = newSV (0); |
|
|
1199 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
1200 | |
|
|
1201 | SV *osv = decode_sv (dec); |
|
|
1202 | sv_setsv (sv, osv); |
|
|
1203 | SvREFCNT_dec_NN (osv); |
|
|
1204 | } |
|
|
1205 | else |
|
|
1206 | { |
|
|
1207 | av_push (dec->shareable, &PL_sv_undef); |
|
|
1208 | int idx = AvFILLp (dec->shareable); |
|
|
1209 | sv = decode_sv (dec); |
|
|
1210 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
1211 | } |
|
|
1212 | } |
|
|
1213 | break; |
|
|
1214 | |
|
|
1215 | case CBOR_TAG_VALUE_SHAREDREF: |
|
|
1216 | { |
|
|
1217 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
1218 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
1219 | |
|
|
1220 | UV idx = decode_uint (dec); |
|
|
1221 | |
|
|
1222 | if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable))) |
|
|
1223 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
1224 | |
|
|
1225 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
1226 | |
|
|
1227 | if (sv == &PL_sv_undef) |
|
|
1228 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
|
|
1229 | } |
|
|
1230 | break; |
|
|
1231 | |
|
|
1232 | case CBOR_TAG_PERL_OBJECT: |
|
|
1233 | { |
|
|
1234 | if (dec->cbor.flags & F_FORBID_OBJECTS) |
|
|
1235 | goto filter; |
|
|
1236 | |
|
|
1237 | sv = decode_sv (dec); |
|
|
1238 | |
|
|
1239 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
|
|
1240 | ERR ("corrupted CBOR data (non-array perl object)"); |
|
|
1241 | |
|
|
1242 | AV *av = (AV *)SvRV (sv); |
|
|
1243 | int len = av_len (av) + 1; |
|
|
1244 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
|
|
1245 | |
|
|
1246 | if (!stash) |
|
|
1247 | ERR ("cannot decode perl-object (package does not exist)"); |
|
|
1248 | |
|
|
1249 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
|
|
1250 | |
|
|
1251 | if (!method) |
|
|
1252 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
|
|
1253 | |
|
|
1254 | dSP; |
|
|
1255 | |
|
|
1256 | ENTER; SAVETMPS; |
|
|
1257 | PUSHMARK (SP); |
|
|
1258 | EXTEND (SP, len + 1); |
|
|
1259 | // we re-bless the reference to get overload and other niceties right |
|
|
1260 | PUSHs (*av_fetch (av, 0, 1)); |
|
|
1261 | PUSHs (sv_cbor); |
|
|
1262 | |
|
|
1263 | int i; |
|
|
1264 | |
|
|
1265 | for (i = 1; i < len; ++i) |
|
|
1266 | PUSHs (*av_fetch (av, i, 1)); |
|
|
1267 | |
|
|
1268 | PUTBACK; |
|
|
1269 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
|
|
1270 | SPAGAIN; |
|
|
1271 | |
|
|
1272 | if (SvTRUE (ERRSV)) |
|
|
1273 | { |
|
|
1274 | FREETMPS; LEAVE; |
|
|
1275 | ERR_ERRSV; |
|
|
1276 | } |
|
|
1277 | |
|
|
1278 | SvREFCNT_dec_NN (sv); |
|
|
1279 | sv = SvREFCNT_inc (POPs); |
|
|
1280 | |
|
|
1281 | PUTBACK; |
|
|
1282 | |
|
|
1283 | FREETMPS; LEAVE; |
|
|
1284 | } |
|
|
1285 | break; |
|
|
1286 | |
|
|
1287 | default: |
|
|
1288 | filter: |
|
|
1289 | { |
|
|
1290 | SV *tag_sv = newSVuv (tag); |
|
|
1291 | |
|
|
1292 | sv = decode_sv (dec); |
|
|
1293 | |
|
|
1294 | dSP; |
|
|
1295 | ENTER; SAVETMPS; |
|
|
1296 | PUSHMARK (SP); |
|
|
1297 | EXTEND (SP, 2); |
|
|
1298 | PUSHs (tag_sv); |
|
|
1299 | PUSHs (sv); |
|
|
1300 | |
|
|
1301 | PUTBACK; |
|
|
1302 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
1303 | SPAGAIN; |
|
|
1304 | |
|
|
1305 | if (SvTRUE (ERRSV)) |
|
|
1306 | { |
|
|
1307 | SvREFCNT_dec_NN (tag_sv); |
|
|
1308 | FREETMPS; LEAVE; |
|
|
1309 | ERR_ERRSV; |
|
|
1310 | } |
|
|
1311 | |
|
|
1312 | if (count) |
|
|
1313 | { |
|
|
1314 | SvREFCNT_dec_NN (tag_sv); |
|
|
1315 | SvREFCNT_dec_NN (sv); |
|
|
1316 | sv = SvREFCNT_inc_NN (TOPs); |
|
|
1317 | SP -= count; |
|
|
1318 | } |
|
|
1319 | else |
|
|
1320 | { |
|
|
1321 | AV *av = newAV (); |
|
|
1322 | av_push (av, tag_sv); |
|
|
1323 | av_push (av, sv); |
|
|
1324 | |
|
|
1325 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
|
|
1326 | ? cbor_tagged_stash |
|
|
1327 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
|
|
1328 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
1329 | } |
|
|
1330 | |
|
|
1331 | PUTBACK; |
|
|
1332 | |
|
|
1333 | FREETMPS; LEAVE; |
|
|
1334 | } |
|
|
1335 | break; |
|
|
1336 | } |
|
|
1337 | |
618 | return sv; |
1338 | return sv; |
619 | |
1339 | |
620 | AV *av = newAV (); |
1340 | fail: |
621 | av_push (av, newSVuv (tag)); |
1341 | SvREFCNT_dec (sv); |
622 | av_push (av, sv); |
1342 | return &PL_sv_undef; |
623 | return newRV_noinc ((SV *)av); |
|
|
624 | } |
1343 | } |
625 | |
1344 | |
626 | static SV * |
1345 | static SV * |
627 | decode_sv (dec_t *dec) |
1346 | decode_sv (dec_t *dec) |
628 | { |
1347 | { |
629 | WANT (1); |
1348 | WANT (1); |
630 | |
1349 | |
631 | switch (*dec->cur >> 5) |
1350 | switch (*dec->cur >> MAJOR_SHIFT) |
632 | { |
1351 | { |
633 | case 0: // unsigned int |
1352 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
634 | return newSVuv (decode_uint (dec)); |
1353 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
635 | case 1: // negative int |
1354 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
636 | return newSViv (-1 - (IV)decode_uint (dec)); |
1355 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
637 | case 2: // octet string |
1356 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
638 | return decode_str (dec, 0); |
1357 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
639 | case 3: // utf-8 string |
1358 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
640 | return decode_str (dec, 1); |
1359 | |
641 | case 4: // array |
1360 | case MAJOR_MISC >> MAJOR_SHIFT: |
642 | return decode_av (dec); |
|
|
643 | case 5: // map |
|
|
644 | return decode_hv (dec); |
|
|
645 | case 6: // tag |
|
|
646 | return decode_tagged (dec); |
|
|
647 | case 7: // misc |
|
|
648 | switch (*dec->cur++ & 31) |
1361 | switch (*dec->cur++ & MINOR_MASK) |
649 | { |
1362 | { |
650 | case 20: |
1363 | case SIMPLE_FALSE: |
651 | #if CBOR_SLOW |
1364 | #if CBOR_SLOW |
652 | cbor_false = get_bool ("CBOR::XS::false"); |
1365 | types_false = get_bool ("Types::Serialiser::false"); |
653 | #endif |
1366 | #endif |
654 | return newSVsv (cbor_false); |
1367 | return newSVsv (types_false); |
655 | case 21: |
1368 | case SIMPLE_TRUE: |
656 | #if CBOR_SLOW |
1369 | #if CBOR_SLOW |
657 | cbor_true = get_bool ("CBOR::XS::true"); |
1370 | types_true = get_bool ("Types::Serialiser::true"); |
658 | #endif |
1371 | #endif |
659 | return newSVsv (cbor_true); |
1372 | return newSVsv (types_true); |
660 | case 22: |
1373 | case SIMPLE_NULL: |
661 | return newSVsv (&PL_sv_undef); |
1374 | return newSVsv (&PL_sv_undef); |
|
|
1375 | case SIMPLE_UNDEF: |
|
|
1376 | #if CBOR_SLOW |
|
|
1377 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1378 | #endif |
|
|
1379 | return newSVsv (types_error); |
662 | |
1380 | |
663 | case 25: |
1381 | case MISC_FLOAT16: |
664 | { |
1382 | { |
665 | WANT (2); |
1383 | WANT (2); |
666 | |
1384 | |
667 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1385 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
668 | dec->cur += 2; |
1386 | dec->cur += 2; |
669 | |
1387 | |
670 | return newSVnv (ecb_binary16_to_float (fp)); |
1388 | return newSVnv (ecb_binary16_to_float (fp)); |
671 | } |
1389 | } |
672 | |
1390 | |
673 | case 26: |
1391 | case MISC_FLOAT32: |
674 | { |
1392 | { |
675 | uint32_t fp; |
1393 | uint32_t fp; |
676 | WANT (4); |
1394 | WANT (4); |
677 | memcpy (&fp, dec->cur, 4); |
1395 | memcpy (&fp, dec->cur, 4); |
678 | dec->cur += 4; |
1396 | dec->cur += 4; |
… | |
… | |
681 | fp = ecb_bswap32 (fp); |
1399 | fp = ecb_bswap32 (fp); |
682 | |
1400 | |
683 | return newSVnv (ecb_binary32_to_float (fp)); |
1401 | return newSVnv (ecb_binary32_to_float (fp)); |
684 | } |
1402 | } |
685 | |
1403 | |
686 | case 27: |
1404 | case MISC_FLOAT64: |
687 | { |
1405 | { |
688 | uint64_t fp; |
1406 | uint64_t fp; |
689 | WANT (8); |
1407 | WANT (8); |
690 | memcpy (&fp, dec->cur, 8); |
1408 | memcpy (&fp, dec->cur, 8); |
691 | dec->cur += 8; |
1409 | dec->cur += 8; |
… | |
… | |
694 | fp = ecb_bswap64 (fp); |
1412 | fp = ecb_bswap64 (fp); |
695 | |
1413 | |
696 | return newSVnv (ecb_binary64_to_double (fp)); |
1414 | return newSVnv (ecb_binary64_to_double (fp)); |
697 | } |
1415 | } |
698 | |
1416 | |
699 | // 0..19 unassigned |
1417 | // 0..19 unassigned simple |
700 | // 24 reserved + unassigned (reserved values are not encodable) |
1418 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1419 | // 28-30 unassigned misc |
|
|
1420 | // 31 break code |
701 | default: |
1421 | default: |
702 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1422 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
703 | } |
1423 | } |
704 | |
1424 | |
705 | break; |
1425 | break; |
706 | } |
1426 | } |
707 | |
1427 | |
… | |
… | |
710 | } |
1430 | } |
711 | |
1431 | |
712 | static SV * |
1432 | static SV * |
713 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1433 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
714 | { |
1434 | { |
715 | dec_t dec; |
1435 | dec_t dec = { 0 }; |
716 | SV *sv; |
1436 | SV *sv; |
|
|
1437 | STRLEN len; |
|
|
1438 | char *data = SvPVbyte (string, len); |
717 | |
1439 | |
718 | /* work around bugs in 5.10 where manipulating magic values |
|
|
719 | * makes perl ignore the magic in subsequent accesses. |
|
|
720 | * also make a copy of non-PV values, to get them into a clean |
|
|
721 | * state (SvPV should do that, but it's buggy, see below). |
|
|
722 | */ |
|
|
723 | /*SvGETMAGIC (string);*/ |
|
|
724 | if (SvMAGICAL (string) || !SvPOK (string)) |
|
|
725 | string = sv_2mortal (newSVsv (string)); |
|
|
726 | |
|
|
727 | SvUPGRADE (string, SVt_PV); |
|
|
728 | |
|
|
729 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
730 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
731 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
732 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
733 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
734 | * and hope for the best. |
|
|
735 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
736 | * assertion business is seriously broken, try yet another workaround |
|
|
737 | * for the broken -DDEBUGGING. |
|
|
738 | */ |
|
|
739 | { |
|
|
740 | #ifdef DEBUGGING |
|
|
741 | STRLEN offset = SvOK (string) ? sv_len (string) : 0; |
|
|
742 | #else |
|
|
743 | STRLEN offset = SvCUR (string); |
|
|
744 | #endif |
|
|
745 | |
|
|
746 | if (offset > cbor->max_size && cbor->max_size) |
1440 | if (len > cbor->max_size && cbor->max_size) |
747 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1441 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
748 | (unsigned long)SvCUR (string), (unsigned long)cbor->max_size); |
1442 | (unsigned long)len, (unsigned long)cbor->max_size); |
749 | } |
|
|
750 | |
|
|
751 | sv_utf8_downgrade (string, 0); |
|
|
752 | |
1443 | |
753 | dec.cbor = *cbor; |
1444 | dec.cbor = *cbor; |
754 | dec.cur = (U8 *)SvPVX (string); |
1445 | dec.cur = (U8 *)data; |
755 | dec.end = (U8 *)SvEND (string); |
1446 | dec.end = (U8 *)data + len; |
756 | dec.err = 0; |
|
|
757 | dec.depth = 0; |
|
|
758 | |
1447 | |
759 | sv = decode_sv (&dec); |
1448 | sv = decode_sv (&dec); |
760 | |
1449 | |
761 | if (offset_return) |
1450 | if (offset_return) |
762 | *offset_return = dec.cur; |
1451 | *offset_return = dec.cur; |
… | |
… | |
765 | if (dec.cur != dec.end && !dec.err) |
1454 | if (dec.cur != dec.end && !dec.err) |
766 | dec.err = "garbage after CBOR object"; |
1455 | dec.err = "garbage after CBOR object"; |
767 | |
1456 | |
768 | if (dec.err) |
1457 | if (dec.err) |
769 | { |
1458 | { |
|
|
1459 | if (dec.shareable) |
|
|
1460 | { |
|
|
1461 | // need to break cyclic links, which would all be in shareable |
|
|
1462 | int i; |
|
|
1463 | SV **svp; |
|
|
1464 | |
|
|
1465 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1466 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1467 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1468 | } |
|
|
1469 | |
770 | SvREFCNT_dec (sv); |
1470 | SvREFCNT_dec_NN (sv); |
|
|
1471 | |
|
|
1472 | if (dec.err_sv) |
|
|
1473 | sv_2mortal (dec.err_sv); |
|
|
1474 | |
771 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); |
1475 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
772 | } |
1476 | } |
773 | |
1477 | |
774 | sv = sv_2mortal (sv); |
1478 | sv = sv_2mortal (sv); |
775 | |
1479 | |
776 | return sv; |
1480 | return sv; |
777 | } |
1481 | } |
778 | |
1482 | |
|
|
1483 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1484 | // incremental parser |
|
|
1485 | |
|
|
1486 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1487 | |
|
|
1488 | // returns 0 for notyet, 1 for success or error |
|
|
1489 | static int |
|
|
1490 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1491 | { |
|
|
1492 | STRLEN cur; |
|
|
1493 | SvPV (cborstr, cur); |
|
|
1494 | |
|
|
1495 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1496 | { |
|
|
1497 | // table of integer count bytes |
|
|
1498 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1499 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1500 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1501 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1502 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1503 | }; |
|
|
1504 | |
|
|
1505 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1506 | U8 m = *p & MINOR_MASK; |
|
|
1507 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1508 | I8 ilen = incr_len[m]; |
|
|
1509 | |
|
|
1510 | self->incr_need = self->incr_pos + 1; |
|
|
1511 | |
|
|
1512 | if (ecb_expect_false (ilen < 0)) |
|
|
1513 | { |
|
|
1514 | if (m != MINOR_INDEF) |
|
|
1515 | return 1; // error |
|
|
1516 | |
|
|
1517 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1518 | { |
|
|
1519 | if (count >= 0) |
|
|
1520 | return 1; // error |
|
|
1521 | |
|
|
1522 | count = 1; |
|
|
1523 | } |
|
|
1524 | else |
|
|
1525 | { |
|
|
1526 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1527 | count = -1; |
|
|
1528 | } |
|
|
1529 | } |
|
|
1530 | else |
|
|
1531 | { |
|
|
1532 | self->incr_need += ilen; |
|
|
1533 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1534 | return 0; |
|
|
1535 | |
|
|
1536 | int major = *p >> MAJOR_SHIFT; |
|
|
1537 | |
|
|
1538 | switch (major) |
|
|
1539 | { |
|
|
1540 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1541 | ++count; // tags merely prefix another value |
|
|
1542 | break; |
|
|
1543 | |
|
|
1544 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1545 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1546 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1547 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1548 | { |
|
|
1549 | UV len; |
|
|
1550 | |
|
|
1551 | if (ecb_expect_false (ilen)) |
|
|
1552 | { |
|
|
1553 | len = 0; |
|
|
1554 | |
|
|
1555 | do { |
|
|
1556 | len = (len << 8) | *++p; |
|
|
1557 | } while (--ilen); |
|
|
1558 | } |
|
|
1559 | else |
|
|
1560 | len = m; |
|
|
1561 | |
|
|
1562 | switch (major) |
|
|
1563 | { |
|
|
1564 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1565 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1566 | self->incr_need += len; |
|
|
1567 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1568 | return 0; |
|
|
1569 | |
|
|
1570 | break; |
|
|
1571 | |
|
|
1572 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1573 | len <<= 1; |
|
|
1574 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1575 | if (len) |
|
|
1576 | { |
|
|
1577 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1578 | count = len + 1; |
|
|
1579 | } |
|
|
1580 | break; |
|
|
1581 | } |
|
|
1582 | } |
|
|
1583 | } |
|
|
1584 | } |
|
|
1585 | |
|
|
1586 | self->incr_pos = self->incr_need; |
|
|
1587 | |
|
|
1588 | if (count > 0) |
|
|
1589 | { |
|
|
1590 | while (!--count) |
|
|
1591 | { |
|
|
1592 | if (!AvFILLp (self->incr_count)) |
|
|
1593 | return 1; // done |
|
|
1594 | |
|
|
1595 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1596 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1597 | } |
|
|
1598 | |
|
|
1599 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1600 | } |
|
|
1601 | } |
|
|
1602 | |
|
|
1603 | return 0; |
|
|
1604 | } |
|
|
1605 | |
|
|
1606 | |
779 | ///////////////////////////////////////////////////////////////////////////// |
1607 | ///////////////////////////////////////////////////////////////////////////// |
780 | // XS interface functions |
1608 | // XS interface functions |
781 | |
1609 | |
782 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1610 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
783 | |
1611 | |
784 | BOOT: |
1612 | BOOT: |
785 | { |
1613 | { |
786 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1614 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
787 | cbor_boolean_stash = gv_stashpv ("CBOR::XS::Boolean", 1); |
|
|
788 | cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1615 | cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
789 | |
1616 | |
790 | cbor_true = get_bool ("CBOR::XS::true"); |
1617 | types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
791 | cbor_false = get_bool ("CBOR::XS::false"); |
1618 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
|
|
1619 | |
|
|
1620 | types_true = get_bool ("Types::Serialiser::true" ); |
|
|
1621 | types_false = get_bool ("Types::Serialiser::false"); |
|
|
1622 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1623 | |
|
|
1624 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
|
|
1625 | |
|
|
1626 | sv_cbor = newSVpv ("CBOR", 0); |
|
|
1627 | SvREADONLY_on (sv_cbor); |
|
|
1628 | |
|
|
1629 | assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1)); |
792 | } |
1630 | } |
793 | |
1631 | |
794 | PROTOTYPES: DISABLE |
1632 | PROTOTYPES: DISABLE |
795 | |
1633 | |
796 | void CLONE (...) |
1634 | void CLONE (...) |
797 | CODE: |
1635 | CODE: |
798 | cbor_stash = 0; |
1636 | cbor_stash = 0; |
799 | cbor_boolean_stash = 0; |
|
|
800 | cbor_tagged_stash = 0; |
1637 | cbor_tagged_stash = 0; |
|
|
1638 | types_error_stash = 0; |
|
|
1639 | types_boolean_stash = 0; |
801 | |
1640 | |
802 | void new (char *klass) |
1641 | void new (char *klass) |
803 | PPCODE: |
1642 | PPCODE: |
804 | { |
1643 | { |
805 | SV *pv = NEWSV (0, sizeof (CBOR)); |
1644 | SV *pv = NEWSV (0, sizeof (CBOR)); |
… | |
… | |
813 | |
1652 | |
814 | void shrink (CBOR *self, int enable = 1) |
1653 | void shrink (CBOR *self, int enable = 1) |
815 | ALIAS: |
1654 | ALIAS: |
816 | shrink = F_SHRINK |
1655 | shrink = F_SHRINK |
817 | allow_unknown = F_ALLOW_UNKNOWN |
1656 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1657 | allow_sharing = F_ALLOW_SHARING |
|
|
1658 | allow_cycles = F_ALLOW_CYCLES |
|
|
1659 | forbid_objects = F_FORBID_OBJECTS |
|
|
1660 | pack_strings = F_PACK_STRINGS |
|
|
1661 | text_keys = F_TEXT_KEYS |
|
|
1662 | text_strings = F_TEXT_STRINGS |
|
|
1663 | validate_utf8 = F_VALIDATE_UTF8 |
818 | PPCODE: |
1664 | PPCODE: |
819 | { |
1665 | { |
820 | if (enable) |
1666 | if (enable) |
821 | self->flags |= ix; |
1667 | self->flags |= ix; |
822 | else |
1668 | else |
… | |
… | |
827 | |
1673 | |
828 | void get_shrink (CBOR *self) |
1674 | void get_shrink (CBOR *self) |
829 | ALIAS: |
1675 | ALIAS: |
830 | get_shrink = F_SHRINK |
1676 | get_shrink = F_SHRINK |
831 | get_allow_unknown = F_ALLOW_UNKNOWN |
1677 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1678 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1679 | get_allow_cycles = F_ALLOW_CYCLES |
|
|
1680 | get_forbid_objects = F_FORBID_OBJECTS |
|
|
1681 | get_pack_strings = F_PACK_STRINGS |
|
|
1682 | get_text_keys = F_TEXT_KEYS |
|
|
1683 | get_text_strings = F_TEXT_STRINGS |
|
|
1684 | get_validate_utf8 = F_VALIDATE_UTF8 |
832 | PPCODE: |
1685 | PPCODE: |
833 | XPUSHs (boolSV (self->flags & ix)); |
1686 | XPUSHs (boolSV (self->flags & ix)); |
834 | |
1687 | |
835 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1688 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
836 | PPCODE: |
1689 | PPCODE: |
… | |
… | |
852 | CODE: |
1705 | CODE: |
853 | RETVAL = self->max_size; |
1706 | RETVAL = self->max_size; |
854 | OUTPUT: |
1707 | OUTPUT: |
855 | RETVAL |
1708 | RETVAL |
856 | |
1709 | |
857 | #if 0 //TODO |
1710 | void filter (CBOR *self, SV *filter = 0) |
858 | |
|
|
859 | void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef) |
|
|
860 | PPCODE: |
1711 | PPCODE: |
861 | { |
|
|
862 | SvREFCNT_dec (self->cb_object); |
1712 | SvREFCNT_dec (self->filter); |
863 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
1713 | self->filter = filter ? newSVsv (filter) : filter; |
864 | |
|
|
865 | XPUSHs (ST (0)); |
1714 | XPUSHs (ST (0)); |
866 | } |
|
|
867 | |
1715 | |
868 | void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef) |
1716 | SV *get_filter (CBOR *self) |
869 | PPCODE: |
1717 | CODE: |
870 | { |
1718 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
871 | if (!self->cb_sk_object) |
1719 | OUTPUT: |
872 | self->cb_sk_object = newHV (); |
1720 | RETVAL |
873 | |
|
|
874 | if (SvOK (cb)) |
|
|
875 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
876 | else |
|
|
877 | { |
|
|
878 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
879 | |
|
|
880 | if (!HvKEYS (self->cb_sk_object)) |
|
|
881 | { |
|
|
882 | SvREFCNT_dec (self->cb_sk_object); |
|
|
883 | self->cb_sk_object = 0; |
|
|
884 | } |
|
|
885 | } |
|
|
886 | |
|
|
887 | XPUSHs (ST (0)); |
|
|
888 | } |
|
|
889 | |
|
|
890 | #endif |
|
|
891 | |
1721 | |
892 | void encode (CBOR *self, SV *scalar) |
1722 | void encode (CBOR *self, SV *scalar) |
893 | PPCODE: |
1723 | PPCODE: |
894 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1724 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
895 | XPUSHs (scalar); |
1725 | XPUSHs (scalar); |
… | |
… | |
908 | EXTEND (SP, 2); |
1738 | EXTEND (SP, 2); |
909 | PUSHs (sv); |
1739 | PUSHs (sv); |
910 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1740 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
911 | } |
1741 | } |
912 | |
1742 | |
913 | #if 0 |
1743 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1744 | ALIAS: |
|
|
1745 | incr_parse_multiple = 1 |
|
|
1746 | PPCODE: |
|
|
1747 | { |
|
|
1748 | if (SvUTF8 (cborstr)) |
|
|
1749 | sv_utf8_downgrade (cborstr, 0); |
|
|
1750 | |
|
|
1751 | if (!self->incr_count) |
|
|
1752 | { |
|
|
1753 | self->incr_count = newAV (); |
|
|
1754 | self->incr_pos = 0; |
|
|
1755 | self->incr_need = 1; |
|
|
1756 | |
|
|
1757 | av_push (self->incr_count, newSViv (1)); |
|
|
1758 | } |
|
|
1759 | |
|
|
1760 | do |
|
|
1761 | { |
|
|
1762 | if (!incr_parse (self, cborstr)) |
|
|
1763 | { |
|
|
1764 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1765 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1766 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1767 | |
|
|
1768 | break; |
|
|
1769 | } |
|
|
1770 | |
|
|
1771 | SV *sv; |
|
|
1772 | char *offset; |
|
|
1773 | |
|
|
1774 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1775 | XPUSHs (sv); |
|
|
1776 | |
|
|
1777 | sv_chop (cborstr, offset); |
|
|
1778 | |
|
|
1779 | av_clear (self->incr_count); |
|
|
1780 | av_push (self->incr_count, newSViv (1)); |
|
|
1781 | |
|
|
1782 | self->incr_pos = 0; |
|
|
1783 | self->incr_need = self->incr_pos + 1; |
|
|
1784 | } |
|
|
1785 | while (ix); |
|
|
1786 | } |
|
|
1787 | |
|
|
1788 | void incr_reset (CBOR *self) |
|
|
1789 | CODE: |
|
|
1790 | { |
|
|
1791 | SvREFCNT_dec (self->incr_count); |
|
|
1792 | self->incr_count = 0; |
|
|
1793 | } |
914 | |
1794 | |
915 | void DESTROY (CBOR *self) |
1795 | void DESTROY (CBOR *self) |
916 | CODE: |
1796 | PPCODE: |
917 | SvREFCNT_dec (self->cb_sk_object); |
1797 | cbor_free (self); |
918 | SvREFCNT_dec (self->cb_object); |
|
|
919 | |
|
|
920 | #endif |
|
|
921 | |
1798 | |
922 | PROTOTYPES: ENABLE |
1799 | PROTOTYPES: ENABLE |
923 | |
1800 | |
924 | void encode_cbor (SV *scalar) |
1801 | void encode_cbor (SV *scalar) |
|
|
1802 | ALIAS: |
|
|
1803 | encode_cbor = 0 |
|
|
1804 | encode_cbor_sharing = F_ALLOW_SHARING |
925 | PPCODE: |
1805 | PPCODE: |
926 | { |
1806 | { |
927 | CBOR cbor; |
1807 | CBOR cbor; |
928 | cbor_init (&cbor); |
1808 | cbor_init (&cbor); |
|
|
1809 | cbor.flags |= ix; |
929 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1810 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
930 | XPUSHs (scalar); |
1811 | XPUSHs (scalar); |
931 | } |
1812 | } |
932 | |
1813 | |
933 | void decode_cbor (SV *cborstr) |
1814 | void decode_cbor (SV *cborstr) |
… | |
… | |
937 | cbor_init (&cbor); |
1818 | cbor_init (&cbor); |
938 | PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1819 | PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
939 | XPUSHs (cborstr); |
1820 | XPUSHs (cborstr); |
940 | } |
1821 | } |
941 | |
1822 | |
|
|
1823 | #ifdef __AFL_COMPILER |
|
|
1824 | |
|
|
1825 | void |
|
|
1826 | afl_init () |
|
|
1827 | CODE: |
|
|
1828 | __AFL_INIT (); |
|
|
1829 | |
|
|
1830 | int |
|
|
1831 | afl_loop (unsigned int count = 10000) |
|
|
1832 | CODE: |
|
|
1833 | RETVAL = __AFL_LOOP (count); |
|
|
1834 | OUTPUT: |
|
|
1835 | RETVAL |
|
|
1836 | |
|
|
1837 | #endif |
|
|
1838 | |