ZLIB: shortcuts to easy compress/decompress data

Functions
size_t	CompressData (unsigned char *abSrc, size_t nLenSrc, unsigned char *abDst, size_t nLenDst)
	Compress a string to another.
size_t	GetMaxCompressedLen (size_t nLenSrc)
	Return the maximum compressed size.
size_t	UncompressData (unsigned char *abSrc, size_t nLenSrc, unsigned char *abDst, size_t nLenDst)
	Uncompress a string to another.
N_STR *	unzip_nstr (N_STR *src)
	return an uncompressed version of src
N_STR *	zip_nstr (N_STR *src)
	return a compressed version of src

Detailed Description

Function Documentation

CompressData()

size_t CompressData	(	unsigned char *	abSrc,
		size_t	nLenSrc,
		unsigned char *	abDst,
		size_t	nLenDst
	)

Compress a string to another.

Parameters

abSrc	source string
nLenSrc	size of source string
abDst	destination string
nLenDst	destination length

Returns

0 or lenght of output

Definition at line 37 of file n_zlib.c.

References __n_assert, LOG_ERR, and n_log.

Referenced by zip_nstr().

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GetMaxCompressedLen()

size_t GetMaxCompressedLen

(

size_t

nLenSrc

)

Return the maximum compressed size.

Parameters

nLenSrc

Returns

The size in bytes

Definition at line 24 of file n_zlib.c.

Referenced by zip_nstr().

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UncompressData()

size_t UncompressData	(	unsigned char *	abSrc,
		size_t	nLenSrc,
		unsigned char *	abDst,
		size_t	nLenDst
	)

Uncompress a string to another.

Parameters

abSrc	source string
nLenSrc	size of source string
abDst	destination string
nLenDst	destination length

Returns

0 or lenght of output

Definition at line 94 of file n_zlib.c.

References __n_assert, LOG_ERR, and n_log.

Referenced by unzip_nstr().

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unzip_nstr()

N_STR * unzip_nstr

(

N_STR *

src

)

return an uncompressed version of src

Parameters

src	The source string

Returns

The uncompressed string or NULL

Definition at line 199 of file n_zlib.c.

References __n_assert, N_STR::data, free_nstr, N_STR::length, LOG_DEBUG, LOG_ERR, n_log, new_nstr(), UncompressData(), and N_STR::written.

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zip_nstr()

N_STR * zip_nstr

(

N_STR *

src

)

return a compressed version of src

Parameters

src	The source string

Returns

The compressed string or NULL

Definition at line 148 of file n_zlib.c.

References __n_assert, CompressData(), N_STR::data, free_nstr, GetMaxCompressedLen(), N_STR::length, LOG_DEBUG, LOG_ERR, n_log, new_nstr(), and N_STR::written.

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