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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
/* ######################################################################
AR File - Handle an 'AR' archive
This is a reader for the usual 4.4 BSD AR format. It allows raw
stream access to a single member at a time. Basically all this class
provides is header parsing and verification. It is up to the client
to correctly make use of the stream start/stop points.
##################################################################### */
/*}}}*/
#ifndef PKGLIB_ARFILE_H
#define PKGLIB_ARFILE_H
#include <apt-pkg/macros.h>
#include <string>
class FileFd;
class APT_PUBLIC ARArchive
{
struct MemberHeader;
public:
struct Member;
protected:
// Linked list of members
Member *List;
bool LoadHeaders();
public:
// The stream file
FileFd &File;
// Locate a member by name
const Member *FindMember(const char *Name) const;
inline Member *Members() { return List; }
APT_PUBLIC explicit ARArchive(FileFd &File);
APT_PUBLIC ~ARArchive();
};
// A member of the archive
struct ARArchive::Member
{
// Fields from the header
std::string Name;
unsigned long MTime;
unsigned long UID;
unsigned long GID;
unsigned long Mode;
unsigned long long Size;
// Location of the data.
unsigned long long Start;
Member *Next;
Member() : Start(0), Next(0) {};
};
#endif
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