adler32.h File Reference

#include <wireshark.h>

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Functions
WS_DLL_PUBLIC uint32_t	update_adler32 (uint32_t adler, const uint8_t *buf, size_t len)
	Updates an existing Adler-32 checksum with new data.
WS_DLL_PUBLIC uint32_t	adler32_bytes (const uint8_t *buf, size_t len)
	Computes the Adler-32 checksum of a byte array.
WS_DLL_PUBLIC uint32_t	adler32_str (const char *buf)
	Computes the Adler-32 checksum of a C string.

Detailed Description

Compute the Adler32 checksum (RFC 1950) 2003 Tomas Kukosa

Wireshark - Network traffic analyzer By Gerald Combs geral.nosp@m.d@wi.nosp@m.resha.nosp@m.rk.o.nosp@m.rg Copyright 1998 Gerald Combs

SPDX-License-Identifier: GPL-2.0-or-later

Function Documentation

adler32_bytes()

WS_DLL_PUBLIC uint32_t adler32_bytes	(	const uint8_t *	buf,
		size_t	len
	)

Computes the Adler-32 checksum of a byte array.

Calculates the Adler-32 checksum for the entire buffer in one pass.

Parameters

buf	Pointer to the byte array.
len	Length of the array in bytes.

Returns

Adler-32 checksum of the buffer.

adler32_str()

WS_DLL_PUBLIC uint32_t adler32_str

(

const char *

buf

)

Computes the Adler-32 checksum of a C string.

Calculates the Adler-32 checksum for a NUL-terminated string.

Parameters

buf	Pointer to the input string.

Returns

Adler-32 checksum of the string.

update_adler32()

WS_DLL_PUBLIC uint32_t update_adler32	(	uint32_t	adler,
		const uint8_t *	buf,
		size_t	len
	)

Updates an existing Adler-32 checksum with new data.

Computes the Adler-32 checksum of the given buffer and updates the provided checksum value. This allows incremental checksum computation across multiple buffers.

Parameters

adler	The current Adler-32 checksum value.
buf	Pointer to the data buffer.
len	Length of the buffer in bytes.

Returns

Updated Adler-32 checksum.