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| 112 | const u8 *in_end = ip + in_len; |
112 | const u8 *in_end = ip + in_len; |
| 113 | u8 *out_end = op + out_len; |
113 | u8 *out_end = op + out_len; |
| 114 | const u8 *ref; |
114 | const u8 *ref; |
| 115 | |
115 | |
| 116 | unsigned int hval; |
116 | unsigned int hval; |
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117 | #if WIN32 |
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118 | unsigned _int64 off; /* workaround for microsoft bug (they claim to support POSIX) */ |
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119 | #else |
| 117 | unsigned long off; |
120 | unsigned long off; |
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121 | #endif |
| 118 | int lit; |
122 | int lit; |
| 119 | |
123 | |
| 120 | if (!in_len || !out_len) |
124 | if (!in_len || !out_len) |
| 121 | return 0; |
125 | return 0; |
| 122 | |
126 | |
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| 157 | /* match found at *ref++ */ |
161 | /* match found at *ref++ */ |
| 158 | unsigned int len = 2; |
162 | unsigned int len = 2; |
| 159 | unsigned int maxlen = in_end - ip - len; |
163 | unsigned int maxlen = in_end - ip - len; |
| 160 | maxlen = maxlen > MAX_REF ? MAX_REF : maxlen; |
164 | maxlen = maxlen > MAX_REF ? MAX_REF : maxlen; |
| 161 | |
165 | |
| 162 | if (maxlen > 8) maxlen = 8;//D |
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| 163 | |
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| 164 | op [- lit - 1] = lit - 1; /* stop run */ |
166 | op [- lit - 1] = lit - 1; /* stop run */ |
| 165 | op -= !lit; /* undo run if length is zero */ |
167 | op -= !lit; /* undo run if length is zero */ |
| 166 | |
168 | |
| 167 | if (expect_false (op + 3 + 1 >= out_end)) |
169 | if (expect_false (op + 3 + 1 >= out_end)) |
| 168 | return 0; |
170 | return 0; |
| … | |
… | |
| 256 | lit = 0; op++; /* start run */ |
258 | lit = 0; op++; /* start run */ |
| 257 | } |
259 | } |
| 258 | } |
260 | } |
| 259 | } |
261 | } |
| 260 | |
262 | |
| 261 | if (op + 2 > out_end) /* at most 2 bytes can be missing here */ |
263 | if (op + 3 > out_end) /* at most 3 bytes can be missing here */ |
| 262 | return 0; |
264 | return 0; |
| 263 | |
265 | |
| 264 | while (ip < in_end) |
266 | while (ip < in_end) |
| 265 | { |
267 | { |
| 266 | lit++; *op++ = *ip++; |
268 | lit++; *op++ = *ip++; |
