Removing dependency to gnutls, only gcrypt is required now.

src/core/common/crypthelper.cpp

@@ -165,16 +165,29 @@ CryptHelper::MD5Sum(const std::string &fileName, MD5Buf &buf)
 
 	if (file) {
 		// Calculate MD5 sum of file.
-		unsigned char readBuf[8192];
-		MD5_CTX context;
+		unsigned char *readBuf = new unsigned char[8192];
 		int numBytes;
 
+#ifdef HAVE_OPENSSL
+		MD5_CTX context;
 		MD5_Init(&context);
-		while ((numBytes = fread(readBuf, 1, sizeof(readBuf), file)) > 0)
+		while ((numBytes = fread(readBuf, 1, sizeof(readBuf), file)) > 0) {
 			MD5_Update(&context, readBuf, numBytes);
+		}
 		MD5_Final(buf.GetData(), &context);
+#else
+		gcry_md_hd_t hash;
+		gcry_md_open(&hash, GCRY_MD_MD5, 0);
+		while ((numBytes = fread(readBuf, 1, sizeof(readBuf), file)) > 0) {
+			gcry_md_write(hash, readBuf, numBytes);
+		}
+		memcpy(buf.GetData(), gcry_md_read(hash, GCRY_MD_MD5), MD5_DATA_SIZE);
+		gcry_md_close(hash);
+#endif
+
 		retVal = ferror(file) == 0;
 
+		delete[] readBuf;
 		fclose(file);
 	}
 	return retVal;

src/core/openssl_wrapper.h

@@ -67,10 +67,8 @@ typedef int pid_t;
 #include <openssl/rand.h>
 #include <openssl/evp.h>
 #else
-// For all other systems, we use GnuTLS.
-#include <gnutls/openssl.h>
+// For all other systems, we use gcrypt.
 #include <gcrypt.h>
-#define PKTH_USE_GNUTLS
 #endif
 
 #endif

src/engine/local_engine/tools.cpp

@@ -109,9 +109,13 @@ void Tools::getRandNumber(int start, int end, int howMany, int* randArray, bool
 		int counter(0);
 		while(counter < howMany) {
 
+#ifdef HAVE_OPENSSL
 			if(!RAND_bytes(rand_buf, 4)) {
 				LOG_MSG("RAND_bytes failed!");
 			}
+#else
+			gcry_randomize(rand_buf, 4, GCRY_VERY_STRONG_RANDOM);
+#endif
 
 			randNumber = 0;
 			for(i=0; i<4; i++) {
@@ -138,9 +142,13 @@ void Tools::getRandNumber(int start, int end, int howMany, int* randArray, bool
 		int counter(0);
 		while (counter < howMany) {
 
+#ifdef HAVE_OPENSSL
 			if(!RAND_bytes(rand_buf, 4)) {
 				LOG_MSG("RAND_bytes failed!");
 			}
+#else
+			gcry_randomize(rand_buf, 4, GCRY_VERY_STRONG_RANDOM);
+#endif
 
 			randNumber = 0;
 			for(i=0; i<4; i++) {

src/net/common/socket_startup.cpp

@@ -23,9 +23,7 @@
 #include <net/socket_startup.h>
 #include <core/openssl_wrapper.h>
 
-#ifdef PKTH_USE_GNUTLS
-
-#include <gcrypt.h>
+#ifndef HAVE_OPENSSL
 
 extern "C" {
 
@@ -60,16 +58,20 @@ extern "C" {
 		NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
 	};
 }
-#endif // PKTH_USE_GNUTLS
+#endif // not HAVE_OPENSSL
 
 bool
 socket_startup()
 {
-#ifdef PKTH_USE_GNUTLS
+#ifdef HAVE_OPENSSL
+	return SSL_library_init() == 1;
+#else
+	gcry_check_version(NULL);
 	gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads_boost);
 	gcry_control(GCRYCTL_ENABLE_QUICK_RANDOM, 0);
+	gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
+	return true;
 #endif
-	return SSL_library_init() == 1;
 }
 
 void