Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/lib/crc32.c @ 8590:b9faf4db2a9f HEAD
Updated copyright notices to include year 2009.
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Tue, 06 Jan 2009 09:25:38 -0500 |
| parents | 3d2736ece94a |
| children | 00cd9aacd03c |
| rev | line source |
|---|---|
|
8590
b9faf4db2a9f
Updated copyright notices to include year 2009.
Timo Sirainen <tss@iki.fi>
parents:
8267
diff
changeset
|
1 /* Copyright (c) 2006-2009 Dovecot authors, see the included COPYING file */ |
| 4487 | 2 |
| 3 #include "lib.h" | |
| 4 #include "crc32.h" | |
| 5 | |
| 6 static uint32_t crc32tab[256] = { | |
| 7 0x00000000, | |
| 8 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, | |
| 9 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, | |
| 10 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, | |
| 11 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, | |
| 12 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856, 0x646BA8C0, | |
| 13 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, | |
| 14 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, | |
| 15 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, | |
| 16 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, | |
| 17 0xDCD60DCF, 0xABD13D59, 0x26D930AC, 0x51DE003A, 0xC8D75180, | |
| 18 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, | |
| 19 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, | |
| 20 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106, | |
| 21 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, | |
| 22 0xE8B8D433, 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, | |
| 23 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, 0x6B6B51F4, | |
| 24 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, | |
| 25 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, | |
| 26 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, | |
| 27 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, | |
| 28 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, | |
| 29 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, | |
| 30 0xDD0D7CC9, 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, | |
| 31 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, 0x5EDEF90E, | |
| 32 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, | |
| 33 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, | |
| 34 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, | |
| 35 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, | |
| 36 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, 0xF00F9344, 0x8708A3D2, | |
| 37 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, | |
| 38 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, | |
| 39 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, | |
| 40 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, | |
| 41 0x3FB506DD, 0x48B2364B, 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, | |
| 42 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, | |
| 43 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, | |
| 44 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28, | |
| 45 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, | |
| 46 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, | |
| 47 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, 0x95BF4A82, | |
| 48 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, | |
| 49 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, | |
| 50 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, | |
| 51 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, | |
| 52 0xF862AE69, 0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, | |
| 53 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, | |
| 54 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, | |
| 55 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, 0xBDBDF21C, | |
| 56 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, | |
| 57 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, | |
| 58 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D | |
| 59 }; | |
| 60 | |
|
6613
eccb154b310c
Renamed crc32() to crc32_data() so we don't conflict with zlib's crc32().
Timo Sirainen <tss@iki.fi>
parents:
6429
diff
changeset
|
61 uint32_t crc32_data(const void *data, size_t size) |
| 4487 | 62 { |
| 8267 | 63 return crc32_data_more((uint32_t)-1, data, size); |
| 64 } | |
| 65 | |
| 66 uint32_t crc32_data_more(uint32_t crc, const void *data, size_t size) | |
| 67 { | |
| 4487 | 68 const uint8_t *p = data, *end = p + size; |
| 69 | |
| 70 for (; p != end; p++) | |
| 71 crc = (crc >> 8) ^ crc32tab[((crc ^ *p) & 0xff)]; | |
| 72 return crc; | |
| 73 } | |
| 74 | |
| 75 uint32_t crc32_str(const char *str) | |
| 76 { | |
| 8267 | 77 return crc32_str_more((uint32_t)-1, str); |
| 78 } | |
| 79 | |
| 80 uint32_t crc32_str_more(uint32_t crc, const char *str) | |
| 81 { | |
| 4487 | 82 const uint8_t *p = (const uint8_t *)str; |
| 83 | |
| 84 for (; *p != '\0'; p++) | |
| 85 crc = (crc >> 8) ^ crc32tab[((crc ^ *p) & 0xff)]; | |
| 86 return crc; | |
| 87 } |