.gitignore

@@ -9,7 +9,6 @@ test-tcpserver
 test-udp
 .depend
 .Makefile.rules
-Makefile.rules
 
 # ---> Eclipse
 .metadata

Makefile

@@ -23,7 +23,6 @@ help:
 	echo "set up configuration"
 	echo "   make configwindows    to generate the windows build"
 	echo "   make configlinux      to generate the linix build"
-	echo "   make keygen           create self signed certificate"
 
 configlinux: clean
 	cp -f Makefile.rules.linux Makefile.rules

UDPTCPNetwork.h

@@ -61,16 +61,13 @@ using namespace std;
  * global functions needed for networking
  *
  */
-extern int UDPTCPNetwork_init;
-
 int dns_filladdr (string host, string port, int ai_family,
 		struct sockaddr_storage *sAddr);
 char *itoa(char* buffer, int number, int size);
 void UDPTCPNetwork_Startup();
+extern int UDPTCPNetwork_init;
 #define UDPTCPNetwork() if(UDPTCPNetwork_init == 0) UDPTCPNetwork_Startup()
 
-int file_is_readable (const char *fname);
-
 /************************************************************************
  *
  * udp related functions

network.cc

@@ -1,11 +1,7 @@
-/*
- *
- */
 
 #include "UDPTCPNetwork.h"
 
 #include <stdio.h>
-#include <fcntl.h>
 #include <unistd.h> /* close() */
 #include <string.h> /* memset() */
 
@@ -43,7 +39,7 @@ int dns_filladdr (string host, string port, int ai_family, struct sockaddr_stora
 char* itoa(char* buffer, int number, int size) {
 	snprintf (buffer, size, "%d", number);
 	return buffer;
-};
+}
 
 
 void UDPTCPNetwork_Startup() {
@@ -69,16 +65,4 @@ void UDPTCPNetwork_Startup() {
     }
 #endif
     UDPTCPNetwork_init = 1;
-};
+}
-
-
-
-int file_is_readable (const char *fname) {
-    int f;
-
-    if ((f = open(fname, O_RDONLY)) == -1) return 0;
-    close (f);
-
-    return 1;
-};
-

ssl.cc

@@ -101,9 +101,6 @@ int SSLSocket::SetCertificat(string certf, string keyf) {
 	certfile = certf;
 	keyfile = keyf;
 
-	if (!file_is_readable(certf.c_str())) return 0;
-	if (!file_is_readable(keyf.c_str())) return 0;
-
 	return 1;
 };
 

test-ssl.cc

@@ -21,23 +21,20 @@ void server () {
 
 	//
 	// start the server
-	printf ("server: starting server\n");
 	if (tcpserver.Listen(DEFAULT_PORT) != 1) {
-		printf ("server: cloud not start the tcp server\n");
+		printf ("cloud not start the tcp server\n");
 		exit (1);
 	}
 
 	//
 	// init SSL
-	printf ("server: setting up certificates\n");
 	if (ssl.SetCertificat("cert.pem", "privkey.pem") != 1) {
-		printf ("server: SetCertificat error:%s\n", strerror(errno));
+		printf ("SetCertificat error:%s\n", strerror(errno));
 		exit (1);
 	}
 
 	//
 	// check for connections
-	printf ("server: wait for connection\n");
 	for (;time_now - time_start < 10; time_now = time(NULL)) {
 		connection = tcpserver.Accept();
 		if (connection != NULL) {
@@ -45,32 +42,45 @@ void server () {
 			// someone connected - create new process
 			// take care of parallel processing (parent is always the server)
 			//
-			printf ("server: someone connected.\n");
+			printf ("                       server: got a connection forking new process\n");
-			printf ("server: accept ssl connection\n");
+			pid = fork();
-			if (ssl.Accept(connection->GetSocket(), 0) != 1) {
+			if (pid == 0) {
-				printf ("server: could not establish SSL connection:%s\n", strerror(errno));
+				//
+				// child process - always close server since it will handeled
+				// by the parent process. Make sure the client exits and never
+				// returns.
+
+				tcpserver.Close();
+				if (ssl.Accept(connection->GetSocket(), 0) != 1) {
+					printf ("could not establish SSL connection:%s\n", strerror(errno));
+					exit (1);
+				}
+				i = ssl.Read(buffer, NET_BUFFERSIZE);
+				if (i > 0) {
+					int c;
+
+					printf ("                       server: got: '%s'\n", buffer);
+					for (c = 0; c < i; c++) buffer[c] = toupper(buffer[c]);
+					ssl.Write(buffer, i);
+				}
+				//
+				// just delete the class object, it will close the client connection
+				ssl.Close();
+				delete (connection);
+
+				//
+				// exit child process
 				exit (1);
 			}
-			i = ssl.Read(buffer, NET_BUFFERSIZE);
-			if (i > 0) {
-				int c;
-
-				printf ("server: got: '%s'\n", buffer);
-				for (c = 0; c < i; c++) buffer[c] = toupper(buffer[c]);
-				ssl.Write(buffer, i);
-			}
 			else {
-				printf ("server: nothing to read. close connection.\n");
+				//
+				// parent process - just close the client connection
+				// it will be handeled by the child process.
+				delete (connection);
 			}
-			//
-			// just delete the class object, it will close the client connection
-			ssl.Close();
-			delete (connection);
-			connection = NULL;
 		}
-		usleep (250000);
+		usleep (25000);
 	}
-	printf ("server: terminating server process.\n");
 };
 
 
@@ -84,45 +94,34 @@ void client () {
 
 	//
 	// connect to the server
-	printf ("client: connect to localhost\n");
 	if (tcpclient.Connect ("localhost", DEFAULT_PORT) != 1) {
-		printf ("client: cloud not connect to server\n");
+		printf ("cloud not connect to server\n");
 		exit (1);
 	}
-	printf ("client: connected\n");
 
-	printf ("client: start SSL connection\n");
+	res = ssl.Connect(tcpclient.GetSocket(), 100);
-	if (ssl.Connect(tcpclient.GetSocket(), 100) != 1) {
+	if (res == -1) {
-		printf ("client: could not establish SSL connection:errno:%s   sslerror:%s\n", strerror(errno), ssl.GetSSLErrorText(ssl.sslerror).c_str());
+		printf ("could not establish SSL connection:errno:%s   sslerror:%s\n", strerror(errno), ssl.GetSSLErrorText(ssl.sslerror).c_str());
 		exit (1);
 	}
-	printf ("client: ssl connected.\n");
 
 	//
 	// send some data
 	snprintf (buffer, NET_BUFFERSIZE, "nur ein kleiner Test.");
-	printf ("client: send '%s' to the server.\n", buffer);
+	printf ("client:send '%s' to the server.\n", buffer);
 
 	if (ssl.Write(buffer, strlen (buffer)) != strlen (buffer)) {
-		printf ("client: could not send all data. errno:%s   sslerror:%s\n", strerror(errno), ssl.GetSSLErrorText(ssl.sslerror).c_str());
+		printf ("could not send all data. errno:%s   sslerror:%s\n", strerror(errno), ssl.GetSSLErrorText(ssl.sslerror).c_str());
 		exit (1);
 	}
 
 	//
 	// read some data (wait maximum 10x1000ms)
-	for (i = 10; i > 0; i--) {
+	for (i = 10; i > 0; i--)
-		printf ("client: try to read\n");
+		if (ssl.Read(buffer, NET_BUFFERSIZE) > 0) {
-		if ((res = ssl.Read(buffer, NET_BUFFERSIZE)) > 0) {
+			printf ("client:got  '%s' from server.\n", buffer);
-			printf ("client: got  '%s' from server.\n", buffer);
 			break;
 		}
-		else if (res < 0) {
-			printf ("client: error on read: Error: %s\n", strerror(errno));
-		}
-		else {
-			printf ("client: no data\n");
-		}
-	}
 
 	//
 	// close connection