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1// -*- mode: cpp; mode: fold -*-
2// Description /*{{{*/
3// $Id: arfile.h,v 1.2 2001/02/20 07:03:16 jgg Exp $
4/* ######################################################################
5
6 AR File - Handle an 'AR' archive
7
8 This is a reader for the usual 4.4 BSD AR format. It allows raw
9 stream access to a single member at a time. Basically all this class
10 provides is header parsing and verification. It is up to the client
11 to correctly make use of the stream start/stop points.
12
13 ##################################################################### */
14 /*}}}*/
15#ifndef PKGLIB_ARFILE_H
16#define PKGLIB_ARFILE_H
17
18#ifdef __GNUG__
19#pragma interface "apt-pkg/arfile.h"
20#endif
21
22#include <string>
23#include <apt-pkg/fileutl.h>
24
25class ARArchive
26{
27 struct MemberHeader;
28 public:
29 struct Member;
30
31 protected:
32
33 // Linked list of members
34 Member *List;
35
36 bool LoadHeaders();
37
38 public:
39
40 // The stream file
41 FileFd &File;
42
43 // Locate a member by name
44 const Member *FindMember(const char *Name) const;
45
46 ARArchive(FileFd &File);
47 ~ARArchive();
48};
49
50// A member of the archive
51struct ARArchive::Member
52{
53 // Fields from the header
54 string Name;
55 unsigned long MTime;
56 unsigned long UID;
57 unsigned long GID;
58 unsigned long Mode;
59 unsigned long Size;
60
61 // Location of the data.
62 unsigned long Start;
63 Member *Next;
64
65 Member() : Start(0), Next(0) {};
66};
67
68#endif