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process SU3 header

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orignal 2014-12-09 16:44:58 -05:00
parent 47589125e0
commit fd7fca1d54
1 changed files with 47 additions and 0 deletions
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47
Reseed.cpp
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@ -6,6 +6,7 @@
#include "I2PEndian.h"
#include "Reseed.h"
#include "Log.h"
#include "Identity.h"
#include "util.h"
@ -121,6 +122,8 @@ namespace data
return false;
}
const char SU3_MAGIC_NUMBER[]="I2Psu3";
void ProcessSU3File (const char * filename)
{
static uint32_t headerSignature = htole32 (0x04044B50);
@ -128,6 +131,50 @@ namespace data
std::ifstream s(filename, std::ifstream::binary);
if (s.is_open ())
{
char magicNumber[7];
s.read (magicNumber, 7); // magic number and zero byte 6
if (strcmp (magicNumber, SU3_MAGIC_NUMBER))
{
LogPrint (eLogError, "Unexpected SU3 magic number");
return;
}
SigningKeyType signatureType;
s.read ((char *)&signatureType, 2); // signature type
signatureType = be16toh (signatureType);
uint16_t signatureLength;
s.read ((char *)&signatureLength, 2); // signature length
signatureLength = be16toh (signatureLentgh);
s.seekg (1, std::ios::cur); // unused
uint8_t versionLength;
s.read ((char *)&versionLength, 1); // version length
s.seekg (1, std::ios::cur); // unused
uint8_t signerIDLength;
s.read ((char *)&signerIDLength, 1); // signer ID length
uint16_t contentLength;
s.read ((char *)&contentLength, 2); // content length
contentLength = be16toh (contentLength);
s.seekg (1, std::ios::cur); // unused
uint8_t fileType;
s.read ((char *)&fileType, 1); // file type
if (fileType != 0x00) // zip file
{
LogPrint (eLogError, "Can't handle file type ", fileType);
return;
}
s.seekg (1, std::ios::cur); // unused
uint8_t contentType;
s.read ((char *)&contentType, 1); // content type
if (contentType != 0x03) // reseed data
{
LogPrint (eLogError, "Unexpected content type ", contentType);
return;
}
s.seekg (2, std::ios::cur); // unused
s.seek (versionLength, std::ios::cur); // skip version
s.seek (signerIDLength, std::ios::cur); // skip signer ID
// handle content
while (!s.eof ())
{
uint32_t signature;