1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// This file is part of par2cmdline (a PAR 2.0 compatible file verification and
// repair tool). See http://parchive.sourceforge.net for details of PAR 2.0.
//
// Copyright (c) 2003 Peter Brian Clements
//
// par2cmdline is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// par2cmdline is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#ifndef __VERIFICATIONPACKET_H__
#define __VERIFICATIONPACKET_H__
// The file verification packet stores details that allow individual blocks
// of valid data within a damaged file to be identified.
class VerificationPacket : public CriticalPacket
{
public:
// Construct the packet
VerificationPacket(void) {};
~VerificationPacket(void) {};
// Create a packet large enough for the specified number of blocks
bool Create(u32 blockcount);
// Set the fileid (computed from the file description packet).
void FileId(const MD5Hash &fileid);
// Set the block hash and block crc for a specific data block.
void SetBlockHashAndCRC(u32 blocknumber, const MD5Hash &hash, u32 crc);
// Load a verification packet from a specified file
bool Load(DiskFile *diskfile, u64 offset, PACKET_HEADER &header);
// Get the FileId
const MD5Hash& FileId(void) const;
// Get the block count
u32 BlockCount(void) const;
// Get a specific verification entry
const FILEVERIFICATIONENTRY* VerificationEntry(u32 blocknumber) const;
protected:
u32 blockcount;
};
inline const MD5Hash& VerificationPacket::FileId(void) const
{
assert(packetdata != 0);
return ((FILEVERIFICATIONPACKET*)packetdata)->fileid;
}
inline u32 VerificationPacket::BlockCount(void) const
{
assert(packetdata != 0);
return blockcount;
}
inline const FILEVERIFICATIONENTRY* VerificationPacket::VerificationEntry(u32 blocknumber) const
{
assert(packetdata != 0);
// return &((FILEVERIFICATIONPACKET*)packetdata)->entries()[blocknumber];
return &((FILEVERIFICATIONPACKET*)packetdata)->entries[blocknumber];
}
#endif // __VERIFICATIONPACKET_H__
|
