3.13

7zip/Archive/RPM/RpmHeader.h

@@ -0,0 +1,89 @@
+// Archive/RpmHeader.h
+
+// #pragma once
+
+#ifndef __ARCHIVE_RPM_HEADER_H
+#define __ARCHIVE_RPM_HEADER_H
+
+#include "Common/Types.h"
+
+namespace NArchive {
+namespace NRpm {
+
+#pragma pack(push, PragmaRPMHeaders)
+#pragma pack(push, 1)
+
+/* Reference: lib/signature.h of rpm package */
+#define RPMSIG_NONE         0  /* Do not change! */
+/* The following types are no longer generated */
+#define RPMSIG_PGP262_1024  1  /* No longer generated */ /* 256 byte */
+/* These are the new-style signatures.  They are Header structures.    */
+/* Inside them we can put any number of any type of signature we like. */
+
+#define RPMSIG_HEADERSIG    5  /* New Header style signature */
+
+struct CLead
+{
+  unsigned char Magic[4];
+  unsigned char Major;  /* not supported  ver1, only support 2,3 and lator */
+  unsigned char Minor;
+  short Type;
+  short ArchNum;
+  char Name[66];
+  short OSNum;
+  short SignatureType;
+  char Reserved[16];  /* pad to 96 bytes -- 8 byte aligned */
+  bool MagicCheck() const 
+    { return Magic[0] == 0xed && Magic[1] == 0xab && Magic[2] == 0xee && Magic[3] == 0xdb; };
+  static short my_htons(short s)
+  { 
+    const unsigned char *p = (const unsigned char*)&s; 
+    return (short(p[0]) << 8) + (p[1]); }
+  ;
+  void hton()
+  {
+    Type = my_htons(Type);
+    ArchNum = my_htons(ArchNum);
+    OSNum = my_htons(OSNum);
+    SignatureType = my_htons(SignatureType);
+  };
+};
+  
+
+struct CEntryInfo
+{
+  int Tag;
+  int Type;
+  int Offset; /* Offset from beginning of data segment, only defined on disk */
+  int Count;
+};
+
+/* case: SignatureType == RPMSIG_HEADERSIG */
+struct CSigHeaderSig
+{
+  unsigned char Magic[4];
+  int Reserved;
+  int IndexLen;  /* count of index entries */
+  int DataLen;   /* number of bytes */
+  int MagicCheck()
+    { return Magic[0] == 0x8e && Magic[1] == 0xad && Magic[2] == 0xe8 && Magic[3] == 0x01; };
+  int GetLostHeaderLen()
+    { return IndexLen * sizeof(CEntryInfo) + DataLen;  };
+  long my_htonl(long s)
+  {
+    unsigned char *p = (unsigned char*)&s;
+    return (p[0] << 24) + (p[1] << 16) + (p[2] << 8) + p[3];
+  };
+  void hton()
+  {
+    IndexLen = my_htonl(IndexLen);
+    DataLen = my_htonl(DataLen);
+  };
+};
+
+#pragma pack(pop)
+#pragma pack(pop, PragmaRPMHeaders)
+
+}}
+
+#endif