Class EZGZipFile

class EZGZipFile;

Description

The EZGZipFile class handles writing / reading of headers and trailers to / from zip files

Members

Defined in EZGZipFile:
EBadGZipCrc, EBadGZipHeader, EBadGZipTrailer, EFComment, EFExtra, EFHcrc, EFName, EFText, EInvalidCompressionMethod, ENotGZipFile, ID1, ID2, IsGzipFile(), IsGzipFileL(), LocateAndReadTrailerL(), ReadHeaderL(), ReadTrailerL(), WriteHeaderL(), WriteTrailerL(), anonymous, anonymous

static IMPORT_C void ReadHeaderL(RFile &aFile, TEZGZipHeader &aHeader);

Description

Read the zip header from the specified zip file into the TEZGZipHeader object

Parameters

RFile &aFile the zip file to read from TEZGZipHeader &aHeader the target header object

Leave codes

KEZlibErrBadGZipHeader invalid zip header ... Any of the system wide error codes

static IMPORT_C void WriteHeaderL(RFile &aFile, TEZGZipHeader &aHeader);

Description

Write the zip header to the specified file

Parameters

RFile &aFile the file to write to TEZGZipHeader &aHeader the header object to write to the file

Leave codes

... Any of the system wide error codes

static IMPORT_C void ReadTrailerL(RFile &aFile, TEZGZipTrailer &aTrailer);

Description

Read the zip trailer from the specified zip file into the TEZGZipTrailer object

Parameters

RFile &aFile the zip file to read from TEZGZipTrailer &aTrailer the target trailer object

Leave codes

KEZlibErrBadGZipTrailer invalid zip trailer ... Any of the system wide error codes

static IMPORT_C void WriteTrailerL(RFile &aFile, TEZGZipTrailer &aTrailer);

Description

Write the zip trailer to the specified file

Parameters

RFile &aFile the file to write to TEZGZipTrailer &aTrailer the trailer object to write to the file

Leave codes

... Any of the system wide error codes

static IMPORT_C void LocateAndReadTrailerL(RFs &aRfs, const TDesC &aFname, TEZGZipTrailer &aTrailer);

Description

Find the zip trailer within the specified file, and read it into the TEZGZipTrailer object

Parameters

RFs &aRfs file server session const TDesC &aFname the file to read from TEZGZipTrailer &aTrailer the target trailer object

Leave codes

KEZlibErrBadGZipHeader Invalid zip header ... Any of the system wide error codes

static IMPORT_C TBool IsGzipFile(RFs &aRfs, const TDesC &aFname);

Description

Parameters

RFs &aRfs const TDesC &aFname

Return value

TBool

static IMPORT_C TBool IsGzipFileL(RFs &aRfs, const TDesC &aFname);

Description

Determine if the given file is a valid zip file

Parameters

RFs &aRfs file server session const TDesC &aFname name of the file to check

Return value

TBool ETrue if the file is valid zip file, EFalse otherwise

Leave codes

... Any of the system wide error codes

n/a

Description

Zip file error codes

ENotGZipFile EInvalidCompressionMethod EBadGZipHeader EBadGZipTrailer EBadGZipCrc

n/a

Description

Flags to determine which part of the header / trailer is being written

EFText EFHcrc EFExtra EFName EFComment

const TUint8 ID1;

Description

First of the header ID pair

const TUint8 ID2;

Description

Second of the header ID pair