Ventoy2Disk/Ventoy2Disk/crc32.c

   1 #include <Windows.h>
   2
   3 static UINT32  g_CrcTable[256] = {
   4     0x00000000,
   5     0x77073096,
   6     0xEE0E612C,
   7     0x990951BA,
   8     0x076DC419,
   9     0x706AF48F,
  10     0xE963A535,
  11     0x9E6495A3,
  12     0x0EDB8832,
  13     0x79DCB8A4,
  14     0xE0D5E91E,
  15     0x97D2D988,
  16     0x09B64C2B,
  17     0x7EB17CBD,
  18     0xE7B82D07,
  19     0x90BF1D91,
  20     0x1DB71064,
  21     0x6AB020F2,
  22     0xF3B97148,
  23     0x84BE41DE,
  24     0x1ADAD47D,
  25     0x6DDDE4EB,
  26     0xF4D4B551,
  27     0x83D385C7,
  28     0x136C9856,
  29     0x646BA8C0,
  30     0xFD62F97A,
  31     0x8A65C9EC,
  32     0x14015C4F,
  33     0x63066CD9,
  34     0xFA0F3D63,
  35     0x8D080DF5,
  36     0x3B6E20C8,
  37     0x4C69105E,
  38     0xD56041E4,
  39     0xA2677172,
  40     0x3C03E4D1,
  41     0x4B04D447,
  42     0xD20D85FD,
  43     0xA50AB56B,
  44     0x35B5A8FA,
  45     0x42B2986C,
  46     0xDBBBC9D6,
  47     0xACBCF940,
  48     0x32D86CE3,
  49     0x45DF5C75,
  50     0xDCD60DCF,
  51     0xABD13D59,
  52     0x26D930AC,
  53     0x51DE003A,
  54     0xC8D75180,
  55     0xBFD06116,
  56     0x21B4F4B5,
  57     0x56B3C423,
  58     0xCFBA9599,
  59     0xB8BDA50F,
  60     0x2802B89E,
  61     0x5F058808,
  62     0xC60CD9B2,
  63     0xB10BE924,
  64     0x2F6F7C87,
  65     0x58684C11,
  66     0xC1611DAB,
  67     0xB6662D3D,
  68     0x76DC4190,
  69     0x01DB7106,
  70     0x98D220BC,
  71     0xEFD5102A,
  72     0x71B18589,
  73     0x06B6B51F,
  74     0x9FBFE4A5,
  75     0xE8B8D433,
  76     0x7807C9A2,
  77     0x0F00F934,
  78     0x9609A88E,
  79     0xE10E9818,
  80     0x7F6A0DBB,
  81     0x086D3D2D,
  82     0x91646C97,
  83     0xE6635C01,
  84     0x6B6B51F4,
  85     0x1C6C6162,
  86     0x856530D8,
  87     0xF262004E,
  88     0x6C0695ED,
  89     0x1B01A57B,
  90     0x8208F4C1,
  91     0xF50FC457,
  92     0x65B0D9C6,
  93     0x12B7E950,
  94     0x8BBEB8EA,
  95     0xFCB9887C,
  96     0x62DD1DDF,
  97     0x15DA2D49,
  98     0x8CD37CF3,
  99     0xFBD44C65,
 100     0x4DB26158,
 101     0x3AB551CE,
 102     0xA3BC0074,
 103     0xD4BB30E2,
 104     0x4ADFA541,
 105     0x3DD895D7,
 106     0xA4D1C46D,
 107     0xD3D6F4FB,
 108     0x4369E96A,
 109     0x346ED9FC,
 110     0xAD678846,
 111     0xDA60B8D0,
 112     0x44042D73,
 113     0x33031DE5,
 114     0xAA0A4C5F,
 115     0xDD0D7CC9,
 116     0x5005713C,
 117     0x270241AA,
 118     0xBE0B1010,
 119     0xC90C2086,
 120     0x5768B525,
 121     0x206F85B3,
 122     0xB966D409,
 123     0xCE61E49F,
 124     0x5EDEF90E,
 125     0x29D9C998,
 126     0xB0D09822,
 127     0xC7D7A8B4,
 128     0x59B33D17,
 129     0x2EB40D81,
 130     0xB7BD5C3B,
 131     0xC0BA6CAD,
 132     0xEDB88320,
 133     0x9ABFB3B6,
 134     0x03B6E20C,
 135     0x74B1D29A,
 136     0xEAD54739,
 137     0x9DD277AF,
 138     0x04DB2615,
 139     0x73DC1683,
 140     0xE3630B12,
 141     0x94643B84,
 142     0x0D6D6A3E,
 143     0x7A6A5AA8,
 144     0xE40ECF0B,
 145     0x9309FF9D,
 146     0x0A00AE27,
 147     0x7D079EB1,
 148     0xF00F9344,
 149     0x8708A3D2,
 150     0x1E01F268,
 151     0x6906C2FE,
 152     0xF762575D,
 153     0x806567CB,
 154     0x196C3671,
 155     0x6E6B06E7,
 156     0xFED41B76,
 157     0x89D32BE0,
 158     0x10DA7A5A,
 159     0x67DD4ACC,
 160     0xF9B9DF6F,
 161     0x8EBEEFF9,
 162     0x17B7BE43,
 163     0x60B08ED5,
 164     0xD6D6A3E8,
 165     0xA1D1937E,
 166     0x38D8C2C4,
 167     0x4FDFF252,
 168     0xD1BB67F1,
 169     0xA6BC5767,
 170     0x3FB506DD,
 171     0x48B2364B,
 172     0xD80D2BDA,
 173     0xAF0A1B4C,
 174     0x36034AF6,
 175     0x41047A60,
 176     0xDF60EFC3,
 177     0xA867DF55,
 178     0x316E8EEF,
 179     0x4669BE79,
 180     0xCB61B38C,
 181     0xBC66831A,
 182     0x256FD2A0,
 183     0x5268E236,
 184     0xCC0C7795,
 185     0xBB0B4703,
 186     0x220216B9,
 187     0x5505262F,
 188     0xC5BA3BBE,
 189     0xB2BD0B28,
 190     0x2BB45A92,
 191     0x5CB36A04,
 192     0xC2D7FFA7,
 193     0xB5D0CF31,
 194     0x2CD99E8B,
 195     0x5BDEAE1D,
 196     0x9B64C2B0,
 197     0xEC63F226,
 198     0x756AA39C,
 199     0x026D930A,
 200     0x9C0906A9,
 201     0xEB0E363F,
 202     0x72076785,
 203     0x05005713,
 204     0x95BF4A82,
 205     0xE2B87A14,
 206     0x7BB12BAE,
 207     0x0CB61B38,
 208     0x92D28E9B,
 209     0xE5D5BE0D,
 210     0x7CDCEFB7,
 211     0x0BDBDF21,
 212     0x86D3D2D4,
 213     0xF1D4E242,
 214     0x68DDB3F8,
 215     0x1FDA836E,
 216     0x81BE16CD,
 217     0xF6B9265B,
 218     0x6FB077E1,
 219     0x18B74777,
 220     0x88085AE6,
 221     0xFF0F6A70,
 222     0x66063BCA,
 223     0x11010B5C,
 224     0x8F659EFF,
 225     0xF862AE69,
 226     0x616BFFD3,
 227     0x166CCF45,
 228     0xA00AE278,
 229     0xD70DD2EE,
 230     0x4E048354,
 231     0x3903B3C2,
 232     0xA7672661,
 233     0xD06016F7,
 234     0x4969474D,
 235     0x3E6E77DB,
 236     0xAED16A4A,
 237     0xD9D65ADC,
 238     0x40DF0B66,
 239     0x37D83BF0,
 240     0xA9BCAE53,
 241     0xDEBB9EC5,
 242     0x47B2CF7F,
 243     0x30B5FFE9,
 244     0xBDBDF21C,
 245     0xCABAC28A,
 246     0x53B39330,
 247     0x24B4A3A6,
 248     0xBAD03605,
 249     0xCDD70693,
 250     0x54DE5729,
 251     0x23D967BF,
 252     0xB3667A2E,
 253     0xC4614AB8,
 254     0x5D681B02,
 255     0x2A6F2B94,
 256     0xB40BBE37,
 257     0xC30C8EA1,
 258     0x5A05DF1B,
 259     0x2D02EF8D
 260 };
 261
 262 UINT32 VentoyCrc32(void *Buffer, UINT32 Length)
 263 {
 264     UINT32 Index;
 265     UINT32 Crc;
 266     UINT8 *Byte = Buffer;
 267
 268     Crc = 0xffffffff;
 269     for (Index = 0; Index < Length; Index++, Byte++)
 270     {
 271         Crc = (Crc >> 8) ^ g_CrcTable[(UINT8)Crc ^ *Byte];
 272     }
 273
 274     return Crc ^ 0xffffffff;
 275 }