Function readFileAddress

keyhunt_legacy.cpp:6394–6547

}

bool readFileAddress(char *fileName)	{
	FILE *fileDescriptor;
	char fileBloomName[30];	/* Actually it is Bloom and Table but just to keep the variable name short*/
	uint8_t checksum[32],hexPrefix[9];
	char dataChecksum[32],bloomChecksum[32];
	size_t bytesRead;
	uint64_t dataSize;
	/*
		if the FLAGSAVEREADFILE is Set to 1 we need to the checksum and check if we have that information already saved
	*/
	if(FLAGSAVEREADFILE)	{	/* if the flag is set to REAd and SAVE the file firs we need to check it the file exist*/
		if(!sha256_file((const char*)fileName,checksum)){
			fprintf(stderr,"[E] sha256_file error line %i\n",__LINE__ - 1);
			return false;
		}
		tohex_dst((char*)checksum,4,(char*)hexPrefix); // we save the prefix (last fourt bytes) hexadecimal value
		snprintf(fileBloomName,30,"data_%s.dat",hexPrefix);
		fileDescriptor = fopen(fileBloomName,"rb");
		if(fileDescriptor != NULL)	{
			printf("[+] Reading file %s\n",fileBloomName);
		
			//read bloom checksum (expected value to be checked)
			//read bloom filter structure
			//read bloom filter data
			//calculate checksum of the current readed data
			//Compare checksums
			//read data checksum (expected value to be checked)
			//read data size
			//read data
			//compare the expected datachecksum againts the current data checksum
			//compare the expected bloom checksum againts the current bloom checksum
			

			//read bloom checksum (expected value to be checked)
			bytesRead = fread(bloomChecksum,1,32,fileDescriptor);
			if(bytesRead != 32)	{
				fprintf(stderr,"[E] Errore reading file, code line %i\n",__LINE__ - 2);
				fclose(fileDescriptor);
				return false;
			}
			
			//read bloom filter structure
			bytesRead = fread(&bloom,1,sizeof(struct bloom),fileDescriptor);
			if(bytesRead != sizeof(struct bloom))	{
				fprintf(stderr,"[E] Error reading file, code line %i\n",__LINE__ - 2);
				fclose(fileDescriptor);
				return false;
			}
			
			printf("[+] Bloom filter for %" PRIu64 " elements.\n",bloom.entries);
			
			bloom.bf = (uint8_t*) malloc(bloom.bytes);
			if(bloom.bf == NULL)	{
				fprintf(stderr,"[E] Error allocating memory, code line %i\n",__LINE__ - 2);
				fclose(fileDescriptor);
				return false;
			}