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BitcoinUtil.h

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+#ifndef __BITCOIN_UTIL__
+#define __BITCOIN_UTIL__
+
+// TODO: these things should all go somewhere
+
+#include <string>
+#include "types.h"
+#include "uint256.h"
+#include <openssl/ripemd.h>
+#include <openssl/sha.h>
+
+std::string strprintf(const char* format, ...);
+std::string FormatFullVersion();
+void RandAddSeedPerfmon();
+
+static const unsigned int MAX_SIZE = 0x02000000;
+
+#define loop                for (;;)
+
+
+
+
+template<typename T1>
+inline uint256 Hash(const T1 pbegin, const T1 pend)
+{
+	static unsigned char pblank[1];
+	uint256 hash1;
+	SHA256((pbegin == pend ? pblank : (unsigned char*)&pbegin[0]), (pend - pbegin) * sizeof(pbegin[0]), (unsigned char*)&hash1);
+	uint256 hash2;
+	SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
+	return hash2;
+}
+
+template<typename T1, typename T2>
+inline uint256 Hash(const T1 p1begin, const T1 p1end,
+	const T2 p2begin, const T2 p2end)
+{
+	static unsigned char pblank[1];
+	uint256 hash1;
+	SHA256_CTX ctx;
+	SHA256_Init(&ctx);
+	SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
+	SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
+	SHA256_Final((unsigned char*)&hash1, &ctx);
+	uint256 hash2;
+	SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
+	return hash2;
+}
+
+template<typename T1, typename T2, typename T3>
+inline uint256 Hash(const T1 p1begin, const T1 p1end,
+	const T2 p2begin, const T2 p2end,
+	const T3 p3begin, const T3 p3end)
+{
+	static unsigned char pblank[1];
+	uint256 hash1;
+	SHA256_CTX ctx;
+	SHA256_Init(&ctx);
+	SHA256_Update(&ctx, (p1begin == p1end ? pblank : (unsigned char*)&p1begin[0]), (p1end - p1begin) * sizeof(p1begin[0]));
+	SHA256_Update(&ctx, (p2begin == p2end ? pblank : (unsigned char*)&p2begin[0]), (p2end - p2begin) * sizeof(p2begin[0]));
+	SHA256_Update(&ctx, (p3begin == p3end ? pblank : (unsigned char*)&p3begin[0]), (p3end - p3begin) * sizeof(p3begin[0]));
+	SHA256_Final((unsigned char*)&hash1, &ctx);
+	uint256 hash2;
+	SHA256((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
+	return hash2;
+}
+
+inline uint160 Hash160(const std::vector<unsigned char>& vch)
+{
+	uint256 hash1;
+	SHA256(&vch[0], vch.size(), (unsigned char*)&hash1);
+	uint160 hash2;
+	RIPEMD160((unsigned char*)&hash1, sizeof(hash1), (unsigned char*)&hash2);
+	return hash2;
+}
+
+/*
+#ifdef WIN32
+// This is used to attempt to keep keying material out of swap
+// Note that VirtualLock does not provide this as a guarantee on Windows,
+// but, in practice, memory that has been VirtualLock'd almost never gets written to
+// the pagefile except in rare circumstances where memory is extremely low.
+#include <windows.h>
+#define mlock(p, n) VirtualLock((p), (n));
+#define munlock(p, n) VirtualUnlock((p), (n));
+#else
+#include <sys/mman.h>
+#include <limits.h>
+// This comes from limits.h if it's not defined there set a sane default 
+#ifndef PAGESIZE
+#include <unistd.h>
+#define PAGESIZE sysconf(_SC_PAGESIZE)
+#endif
+#define mlock(a,b) \
+	mlock(((void *)(((size_t)(a)) & (~((PAGESIZE)-1)))),\
+	(((((size_t)(a)) + (b) - 1) | ((PAGESIZE) - 1)) + 1) - (((size_t)(a)) & (~((PAGESIZE) - 1))))
+#define munlock(a,b) \
+	munlock(((void *)(((size_t)(a)) & (~((PAGESIZE)-1)))),\
+	(((((size_t)(a)) + (b) - 1) | ((PAGESIZE) - 1)) + 1) - (((size_t)(a)) & (~((PAGESIZE) - 1))))
+#endif
+*/
+
+#endif