diff options
Diffstat (limited to 'src/libirecovery.c')
| -rw-r--r-- | src/libirecovery.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/src/libirecovery.c b/src/libirecovery.c index 38ef773..c13572e 100644 --- a/src/libirecovery.c +++ b/src/libirecovery.c @@ -212,7 +212,7 @@ static struct irecv_device irecv_devices[] = { }; #ifndef USE_DUMMY -static unsigned int dfu_hash_t1[256] = { +static unsigned int crc32_lookup_t1[256] = { 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, @@ -279,8 +279,8 @@ static unsigned int dfu_hash_t1[256] = { 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D, }; -#define dfu_hash_step(a,b) \ - a = (dfu_hash_t1[(a & 0xFF) ^ ((unsigned char)b)] ^ (a >> 8)) +#define crc32_step(a,b) \ + a = (crc32_lookup_t1[(a & 0xFF) ^ ((unsigned char)b)] ^ (a >> 8)) #ifdef HAVE_IOKIT static int iokit_get_string_descriptor_ascii(irecv_client_t client, uint8_t desc_index, unsigned char * buffer, int size) { @@ -1849,7 +1849,7 @@ IRECV_API irecv_error_t irecv_send_buffer(irecv_client_t client, unsigned char* } else { int j; for (j = 0; j < size; j++) { - dfu_hash_step(h1, buffer[i*packet_size + j]); + crc32_step(h1, buffer[i*packet_size + j]); } if (i+1 == packets) { if (size+16 > packet_size) { @@ -1862,12 +1862,12 @@ IRECV_API irecv_error_t irecv_send_buffer(irecv_client_t client, unsigned char* } for (j = 0; j < 2; j++) { - dfu_hash_step(h1, dfu_xbuf[j*6 + 0]); - dfu_hash_step(h1, dfu_xbuf[j*6 + 1]); - dfu_hash_step(h1, dfu_xbuf[j*6 + 2]); - dfu_hash_step(h1, dfu_xbuf[j*6 + 3]); - dfu_hash_step(h1, dfu_xbuf[j*6 + 4]); - dfu_hash_step(h1, dfu_xbuf[j*6 + 5]); + crc32_step(h1, dfu_xbuf[j*6 + 0]); + crc32_step(h1, dfu_xbuf[j*6 + 1]); + crc32_step(h1, dfu_xbuf[j*6 + 2]); + crc32_step(h1, dfu_xbuf[j*6 + 3]); + crc32_step(h1, dfu_xbuf[j*6 + 4]); + crc32_step(h1, dfu_xbuf[j*6 + 5]); } char* newbuf = (char*)malloc(size + 16); |