juno_zip.c File Reference

#include "juno/crc/crc.h"
#include "crc/zip.h"

Include dependency graph for juno_zip.c:

Functions
uint32_t	Juno_CrcZipUpdate (uint32_t iCrc, const void *pcData, size_t zDataSize)
	Update ZIP CRC (CRC-32) with new data.

Function Documentation

Juno_CrcZipUpdate()

uint32_t Juno_CrcZipUpdate	(	uint32_t	iCrc,
		const void *	pcData,
		size_t	zDataSize
	)

Update ZIP CRC (CRC-32) with new data.

Applies a final XOR (0xFFFFFFFF) to the computed value before returning when data is processed. If streaming across multiple chunks, undo the XOR on the returned value before using it as the next iCrc. When pcData is NULL or zDataSize is 0, the function returns 0 (no XOR is applied in that case).

Parameters

iCrc	Running CRC value (use JUNO_ZIP_CRC_INIT initially).
pcData	Pointer to data buffer (can be NULL when zDataSize is 0).
zDataSize	Size of data buffer in bytes.

Returns

Updated CRC-32 value; returns 0 when pcData is NULL or zDataSize is 0.