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90 lines
2.2 KiB
C++
Executable File
90 lines
2.2 KiB
C++
Executable File
// Archive/RpmHeader.h
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// #pragma once
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#ifndef __ARCHIVE_RPM_HEADER_H
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#define __ARCHIVE_RPM_HEADER_H
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#include "Common/Types.h"
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namespace NArchive {
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namespace NRpm {
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#pragma pack(push, PragmaRPMHeaders)
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#pragma pack(push, 1)
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/* Reference: lib/signature.h of rpm package */
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#define RPMSIG_NONE 0 /* Do not change! */
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/* The following types are no longer generated */
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#define RPMSIG_PGP262_1024 1 /* No longer generated */ /* 256 byte */
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/* These are the new-style signatures. They are Header structures. */
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/* Inside them we can put any number of any type of signature we like. */
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#define RPMSIG_HEADERSIG 5 /* New Header style signature */
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struct CLead
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{
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unsigned char Magic[4];
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unsigned char Major; /* not supported ver1, only support 2,3 and lator */
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unsigned char Minor;
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short Type;
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short ArchNum;
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char Name[66];
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short OSNum;
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short SignatureType;
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char Reserved[16]; /* pad to 96 bytes -- 8 byte aligned */
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bool MagicCheck() const
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{ return Magic[0] == 0xed && Magic[1] == 0xab && Magic[2] == 0xee && Magic[3] == 0xdb; };
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static short my_htons(short s)
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{
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const unsigned char *p = (const unsigned char*)&s;
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return (short(p[0]) << 8) + (p[1]); }
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;
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void hton()
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{
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Type = my_htons(Type);
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ArchNum = my_htons(ArchNum);
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OSNum = my_htons(OSNum);
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SignatureType = my_htons(SignatureType);
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};
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};
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struct CEntryInfo
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{
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int Tag;
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int Type;
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int Offset; /* Offset from beginning of data segment, only defined on disk */
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int Count;
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};
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/* case: SignatureType == RPMSIG_HEADERSIG */
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struct CSigHeaderSig
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{
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unsigned char Magic[4];
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int Reserved;
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int IndexLen; /* count of index entries */
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int DataLen; /* number of bytes */
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int MagicCheck()
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{ return Magic[0] == 0x8e && Magic[1] == 0xad && Magic[2] == 0xe8 && Magic[3] == 0x01; };
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int GetLostHeaderLen()
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{ return IndexLen * sizeof(CEntryInfo) + DataLen; };
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long my_htonl(long s)
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{
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unsigned char *p = (unsigned char*)&s;
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return (p[0] << 24) + (p[1] << 16) + (p[2] << 8) + p[3];
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};
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void hton()
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{
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IndexLen = my_htonl(IndexLen);
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DataLen = my_htonl(DataLen);
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};
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};
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#pragma pack(pop)
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#pragma pack(pop, PragmaRPMHeaders)
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}}
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#endif
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