API for checksum calculation.

Typedefs
typedef struct _cr_ChecksumCtx	cr_ChecksumCtx

Enumerations
enum	cr_ChecksumType {   CR_CHECKSUM_UNKNOWN, CR_CHECKSUM_MD5, CR_CHECKSUM_SHA, CR_CHECKSUM_SHA1,   CR_CHECKSUM_SHA224, CR_CHECKSUM_SHA256, CR_CHECKSUM_SHA384, CR_CHECKSUM_SHA512,   CR_CHECKSUM_SENTINEL }

Functions
const char *	cr_checksum_name_str (cr_ChecksumType type)
cr_ChecksumType	cr_checksum_type (const char *name)
char *	cr_checksum_file (const char *filename, cr_ChecksumType type, GError **err)
cr_ChecksumCtx *	cr_checksum_new (cr_ChecksumType type, GError **err)
int	cr_checksum_update (cr_ChecksumCtx *ctx, const void *buf, size_t len, GError **err)
char *	cr_checksum_final (cr_ChecksumCtx *ctx, GError **err)

Detailed Description

Typedef Documentation

typedef struct _cr_ChecksumCtx cr_ChecksumCtx

Checksum context.

Definition at line 36 of file checksum.h.

Enumeration Type Documentation

enum cr_ChecksumType

Enum of supported checksum types. Note: SHA is just a "nickname" for the SHA1. This is for the compatibility with original createrepo.

Enumerator
CR_CHECKSUM_UNKNOWN	Unknown checksum
CR_CHECKSUM_MD5	MD5 checksum
CR_CHECKSUM_SHA	SHA checksum
CR_CHECKSUM_SHA1	SHA1 checksum
CR_CHECKSUM_SHA224	SHA224 checksum
CR_CHECKSUM_SHA256	SHA256 checksum
CR_CHECKSUM_SHA384	SHA384 checksum
CR_CHECKSUM_SHA512	SHA512 checksum
CR_CHECKSUM_SENTINEL	sentinel of the list

Definition at line 43 of file checksum.h.

Function Documentation

char* cr_checksum_file	(	const char *	filename,
		cr_ChecksumType	type,
		GError **	err
	)

Compute file checksum.

Parameters

filename	filename
type	type of checksum
err	GError **

Returns

malloced null terminated string with checksum or NULL on error

char* cr_checksum_final	(	cr_ChecksumCtx *	ctx,
		GError **	err
	)

Finalize checksum calculation, return checksum string and frees all checksum context resources.

Parameters

ctx	Checksum context.
err	GError **

Returns

Checksum string or NULL on error.

const char* cr_checksum_name_str

(

cr_ChecksumType

type

)

Return checksum name.

Parameters

type	checksum type

Returns

constant null terminated string with checksum name or NULL on error

cr_ChecksumCtx* cr_checksum_new	(	cr_ChecksumType	type,
		GError **	err
	)

Create new checksum context.

Parameters

type	Checksum algorithm of the new checksum context.
err	GError **

Returns

cr_ChecksumCtx or NULL on error

cr_ChecksumType cr_checksum_type

(

const char *

name

)

Return checksum type.

Parameters

name	checksum name

Returns

checksum type

int cr_checksum_update	(	cr_ChecksumCtx *	ctx,
		const void *	buf,
		size_t	len,
		GError **	err
	)

Feeds data into the checksum.

Parameters

ctx	Checksum context.
buf	Pointer to the data.
len	Length of the data.
err	GError **

Returns

cr_Error code.