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Miscellaneous fixes

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This commit is contained in:
Valeriano A.R.
2015-10-06 01:14:07 +02:00
parent ff627d4c03
commit 5434c14650
9 changed files with 578 additions and 473 deletions
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11
src/crc.c
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@@ -28,14 +28,14 @@ void CRCTable_Init() {
}
unsigned long CRC_BufferInternal(unsigned char *buffer, int len,
unsigned long crc) {
unsigned long crc) {
unsigned char *p;
// Calcular CRC del buffer
p = (unsigned char*) buffer;
// Calculate CRC from buffer
p = (unsigned char*)buffer;
while (len-- != 0) {
unsigned long termA = (crc >> 8) & 0x00FFFFFFL;
unsigned long termB = _crcTable[((int) crc ^ *p++) & 0xff];
unsigned long termB = _crcTable[((int)crc ^ *p++) & 0xff];
crc = termA ^ termB;
}
@@ -55,12 +55,11 @@ unsigned long CRC_File(FILE *file) {
crc = 0xFFFFFFFFL;
for (;;) {
// Llenar el buffer
// Fill buffer
int count = fread(buffer, 1, 512, file);
if (count == 0)
break;
// Calcular CRC del buffer
crc = CRC_BufferInternal(buffer, count, crc);
}
return (crc ^= 0xFFFFFFFFL);