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• Openvpn plugin openvpn-auth-ldap does not bind to Active Directory

  - by Selivanov Pavel

  I'm trying to configure OpenVPN with openvpn-auth-ldap plugin to authorize users via Active Directory LDAP. When I use the same server config without plugin option, and add client config with generated client key and cert, connection is successful, so problem is in the plugin. server.conf: plugin /usr/lib/openvpn/openvpn-auth-ldap.so "/etc/openvpn-test/openvpn-auth-ldap.conf" port 1194 proto tcp dev tun keepalive 10 60 topology subnet server 10.0.2.0 255.255.255.0 tls-server ca ca.crt dh dh1024.pem cert server.crt key server.key #crl-verify crl.pem persist-key persist-tun user nobody group nogroup verb 3 mute 20 openvpn-auth-ldap.conf: <LDAP> URL ldap://dc1.domain:389 TLSEnable no BindDN cn=bot_auth,cn=Users,dc=domain Password bot_auth Timeout 15 FollowReferrals yes </LDAP> <Authorization> BaseDN "cn=Users,dc=domain" SearchFilter "(sAMAccountName=%u)" RequireGroup false # <Group> # BaseDN "ou=groups,dc=mycompany,dc=local" # SearchFilter "(|(cn=developers)(cn=artists))" # MemberAttribute uniqueMember # </Group> </Authorization> Top-level domain in AD is used by historical reasons. Analogue configuration is working for Apache 2.2 in mod-authzn-ldap. User and password are correct. client.conf: remote server_name port 1194 proto tcp client pull remote-cert-tls server dev tun resolv-retry infinite nobind ca ca.crt ; with keys - works fine #cert test.crt #key test.key ; without keys - by password auth-user-pass persist-tun verb 3 mute 20 In server log there is string PLUGIN_INIT: POST /usr/lib/openvpn/openvpn-auth-ldap.so '[/usr/lib/openvpn/openvpn-auth-ldap.so] [/etc/openvpn-test/openvpn-auth-ldap.conf]' which indicates, that plugin failed. I can telnet to dc1.domain:389, so this is not network/firewall problem. Later server says TLS Error: TLS object -> incoming plaintext read error TLS handshake failed - without plugin it tryes to do usal key authentification. server log: Tue Nov 22 03:06:20 2011 OpenVPN 2.1.3 i486-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [MH] [PF_INET6] [eurephia] built on Oct 21 2010 Tue Nov 22 03:06:20 2011 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables Tue Nov 22 03:06:20 2011 PLUGIN_INIT: POST /usr/lib/openvpn/openvpn-auth-ldap.so '[/usr/lib/openvpn/openvpn-auth-ldap.so] [/etc/openvpn-test/openvpn-auth-ldap.conf]' intercepted=PLUGIN_AUTH_USER_PASS_VERIFY|PLUGIN_CLIENT_CONNECT|PLUGIN_CLIENT_DISCONNECT Tue Nov 22 03:06:20 2011 Diffie-Hellman initialized with 1024 bit key Tue Nov 22 03:06:20 2011 /usr/bin/openssl-vulnkey -q -b 1024 -m <modulus omitted> Tue Nov 22 03:06:20 2011 Control Channel Authentication: using 'ta.key' as a OpenVPN static key file Tue Nov 22 03:06:20 2011 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication Tue Nov 22 03:06:20 2011 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication Tue Nov 22 03:06:20 2011 TLS-Auth MTU parms [ L:1543 D:168 EF:68 EB:0 ET:0 EL:0 ] Tue Nov 22 03:06:20 2011 Socket Buffers: R=[87380->131072] S=[16384->131072] Tue Nov 22 03:06:20 2011 TUN/TAP device tun1 opened Tue Nov 22 03:06:20 2011 TUN/TAP TX queue length set to 100 Tue Nov 22 03:06:20 2011 /sbin/ifconfig tun1 10.0.2.1 netmask 255.255.255.0 mtu 1500 broadcast 10.0.2.255 Tue Nov 22 03:06:20 2011 Data Channel MTU parms [ L:1543 D:1450 EF:43 EB:4 ET:0 EL:0 ] Tue Nov 22 03:06:20 2011 GID set to nogroup Tue Nov 22 03:06:20 2011 UID set to nobody Tue Nov 22 03:06:20 2011 Listening for incoming TCP connection on [undef] Tue Nov 22 03:06:20 2011 TCPv4_SERVER link local (bound): [undef] Tue Nov 22 03:06:20 2011 TCPv4_SERVER link remote: [undef] Tue Nov 22 03:06:20 2011 MULTI: multi_init called, r=256 v=256 Tue Nov 22 03:06:20 2011 IFCONFIG POOL: base=10.0.2.2 size=252 Tue Nov 22 03:06:20 2011 MULTI: TCP INIT maxclients=1024 maxevents=1028 Tue Nov 22 03:06:20 2011 Initialization Sequence Completed Tue Nov 22 03:07:10 2011 MULTI: multi_create_instance called Tue Nov 22 03:07:10 2011 Re-using SSL/TLS context Tue Nov 22 03:07:10 2011 Control Channel MTU parms [ L:1543 D:168 EF:68 EB:0 ET:0 EL:0 ] Tue Nov 22 03:07:10 2011 Data Channel MTU parms [ L:1543 D:1450 EF:43 EB:4 ET:0 EL:0 ] Tue Nov 22 03:07:10 2011 Local Options hash (VER=V4): 'c413e92e' Tue Nov 22 03:07:10 2011 Expected Remote Options hash (VER=V4): 'd8421bb0' Tue Nov 22 03:07:10 2011 TCP connection established with [AF_INET]10.0.0.9:47808 Tue Nov 22 03:07:10 2011 TCPv4_SERVER link local: [undef] Tue Nov 22 03:07:10 2011 TCPv4_SERVER link remote: [AF_INET]10.0.0.9:47808 Tue Nov 22 03:07:11 2011 10.0.0.9:47808 TLS: Initial packet from [AF_INET]10.0.0.9:47808, sid=a2cd4052 84b47108 Tue Nov 22 03:07:11 2011 10.0.0.9:47808 TLS_ERROR: BIO read tls_read_plaintext error: error:140890C7:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:peer did not return a certificate Tue Nov 22 03:07:11 2011 10.0.0.9:47808 TLS Error: TLS object -> incoming plaintext read error Tue Nov 22 03:07:11 2011 10.0.0.9:47808 TLS Error: TLS handshake failed Tue Nov 22 03:07:11 2011 10.0.0.9:47808 Fatal TLS error (check_tls_errors_co), restarting Tue Nov 22 03:07:11 2011 10.0.0.9:47808 SIGUSR1[soft,tls-error] received, client-instance restarting Tue Nov 22 03:07:11 2011 TCP/UDP: Closing socket client log: Tue Nov 22 03:06:18 2011 OpenVPN 2.1.3 x86_64-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [MH] [PF_INET6] [eurephia] built on Oct 22 2010 Enter Auth Username:user Enter Auth Password: Tue Nov 22 03:06:25 2011 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables Tue Nov 22 03:06:25 2011 Control Channel Authentication: using 'ta.key' as a OpenVPN static key file Tue Nov 22 03:06:25 2011 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication Tue Nov 22 03:06:25 2011 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication Tue Nov 22 03:06:25 2011 Control Channel MTU parms [ L:1543 D:168 EF:68 EB:0 ET:0 EL:0 ] Tue Nov 22 03:06:25 2011 Socket Buffers: R=[87380->131072] S=[16384->131072] Tue Nov 22 03:06:25 2011 Data Channel MTU parms [ L:1543 D:1450 EF:43 EB:4 ET:0 EL:0 ] Tue Nov 22 03:06:25 2011 Local Options hash (VER=V4): 'd8421bb0' Tue Nov 22 03:06:25 2011 Expected Remote Options hash (VER=V4): 'c413e92e' Tue Nov 22 03:06:25 2011 Attempting to establish TCP connection with [AF_INET]10.0.0.2:1194 [nonblock] Tue Nov 22 03:06:26 2011 TCP connection established with [AF_INET]10.0.0.2:1194 Tue Nov 22 03:06:26 2011 TCPv4_CLIENT link local: [undef] Tue Nov 22 03:06:26 2011 TCPv4_CLIENT link remote: [AF_INET]10.0.0.2:1194 Tue Nov 22 03:06:26 2011 TLS: Initial packet from [AF_INET]10.0.0.2:1194, sid=7a3c2a0f bd35bca7 Tue Nov 22 03:06:26 2011 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this Tue Nov 22 03:06:26 2011 VERIFY OK: depth=1, /C=US/ST=CA/L=SanFrancisco/O=Fort-Funston/CN=Fort-Funston_CA/[email protected] Tue Nov 22 03:06:26 2011 Validating certificate key usage Tue Nov 22 03:06:26 2011 ++ Certificate has key usage 00a0, expects 00a0 Tue Nov 22 03:06:26 2011 VERIFY KU OK Tue Nov 22 03:06:26 2011 Validating certificate extended key usage Tue Nov 22 03:06:26 2011 ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication Tue Nov 22 03:06:26 2011 VERIFY EKU OK Tue Nov 22 03:06:26 2011 VERIFY OK: depth=0, /C=US/ST=CA/L=SanFrancisco/O=Fort-Funston/CN=server/[email protected] Tue Nov 22 03:06:26 2011 Connection reset, restarting [0] Tue Nov 22 03:06:26 2011 TCP/UDP: Closing socket Tue Nov 22 03:06:26 2011 SIGUSR1[soft,connection-reset] received, process restarting Tue Nov 22 03:06:26 2011 Restart pause, 5 second(s) ^CTue Nov 22 03:06:27 2011 SIGINT[hard,init_instance] received, process exiting Does anybody know how to get openvpn-auth-ldap wirking?

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• ColdFusion DSN with DB2 via ODBC

  - by bofe

  I'm attempting to connect a ColdFusion application to a DB2 ODBC DSN. Here's my error message: Connection verification failed for data source: <DSN NAME> java.sql.SQLException: [Macromedia][SequeLink JDBC Driver][ODBC Socket][IBM][CLI Driver] SQL30082N Attempt to establish connection failed with security reason "24" ("USERNAME AND/OR PASSWORD INVALID"). SQLSTATE=08001 The root cause was that: java.sql.SQLException: [Macromedia][SequeLink JDBC Driver][ODBC Socket][IBM][CLI Driver] SQL30082N Attempt to establish connection failed with security reason "24" ("USERNAME AND/OR PASSWORD INVALID"). SQLSTATE=08001 I've installed DB2 client tools on the server ColdFusion runs on. I've verified the credentials are correct.

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• Who are Alice and Bob? [closed]

  - by froadie

  I did search for this on SO, as I assumed someone must have asked it before, similar to the Foo-Bar questions. But I haven't found it, so I'm asking it myself. Is it just me, or are the names Alice and Bob used often in connection to programming, emailing, encoding...? Where did these names come from? What is their relation to computers/programming?

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• libssh2 port forward

  - by Evan D

  In extension of this question http://stackoverflow.com/questions/1580750/example-code-of-libssh2-being-used-for-port-forwarding I was wondering if there's an "easier" way to connect to the locally binded addr:port. From the link: you bind a remote port and list it locally, you accept incoming data from the port and send it to another socket (namely the local addr:port), after which I'd like to connect to the local addr:port. Is there a way to skip the "send it to another" step and direct the data directly for my "connect to localhost" ? There are two parts to why I want this, first, it seems excessive, and in the spirit of piping, I wouldn't be surprised if it was possible. Second, since I'm trying to connect to a localhost'ed bound port forward, all code is in the same thread, making a continiously getting data-sending data, and polling the sending data from another socket, a bit tricky. Thanks in advance, Evan

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• What are some good resources for learning C beyond K&R

  - by Roland

  Hi, I'm currently reaching the end of working through the K&R book "The C Programming Language", and I'm looking for things to read next. Any recommendations of: blogs more detailed / advanced books (I've already stuck Advanced Programming in a Unix Environment on my Safari bookshelf) open source code (beginner-friendly and with good C idioms or style) to read up on next would be gratefully appreciated. To be specific, I'm most interested in things relevant to a *nix environment rather than Windows. Cheers, Roland

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• How to send audio stream via UDP in java?

  - by Nob Venoda

  Hi to all :) I have a problem, i have set MediaLocator to microphone input, and then created Player. I need to grab that sound from the microphone, encode it to some lower quality stream, and send it as a datagram packet via UDP. Here's the code, i found most of it online and adapted it to my app: public class AudioSender extends Thread { private MediaLocator ml = new MediaLocator("javasound://44100"); private DatagramSocket socket; private boolean transmitting; private Player player; TargetDataLine mic; byte[] buffer; private AudioFormat format; private DatagramSocket datagramSocket(){ try { return new DatagramSocket(); } catch (SocketException ex) { return null; } } private void startMic() { try { format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 8000.0F, 16, 2, 4, 8000.0F, true); DataLine.Info info = new DataLine.Info(TargetDataLine.class, format); mic = (TargetDataLine) AudioSystem.getLine(info); mic.open(format); mic.start(); buffer = new byte[1024]; } catch (LineUnavailableException ex) { Logger.getLogger(AudioSender.class.getName()).log(Level.SEVERE, null, ex); } } private Player createPlayer() { try { return Manager.createRealizedPlayer(ml); } catch (IOException ex) { return null; } catch (NoPlayerException ex) { return null; } catch (CannotRealizeException ex) { return null; } } private void send() { try { mic.read(buffer, 0, 1024); DatagramPacket packet = new DatagramPacket( buffer, buffer.length, InetAddress.getByName(Util.getRemoteIP()), 91); socket.send(packet); } catch (IOException ex) { Logger.getLogger(AudioSender.class.getName()).log(Level.SEVERE, null, ex); } } @Override public void run() { player = createPlayer(); player.start(); socket = datagramSocket(); transmitting = true; startMic(); while (transmitting) { send(); } } public static void main(String[] args) { AudioSender as = new AudioSender(); as.start(); } } And only thing that happens when I run the receiver class, is me hearing this Player from the sender class. And I cant seem to see the connection between TargetDataLine and Player. Basically, I need to get the sound form player, and somehow convert it to bytes[], therefore I can sent it as datagram. Any ideas? Everything is acceptable, as long as it works :)

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• Streaming input to System.Speech.Recognition.SpeechRecognitionEngine

  - by spurserh

  I am trying to do "streaming" speech recognition in C# from a TCP socket. The problem I am having is that SpeechRecognitionEngine.SetInputToAudioStream() seems to require a Stream of a defined length which can seek. Right now the only way I can think to make this work is to repeatedly run the recognizer on a MemoryStream as more input comes in. Here's some code to illustrate: SpeechRecognitionEngine appRecognizer = new SpeechRecognitionEngine(); System.Speech.AudioFormat.SpeechAudioFormatInfo formatInfo = new System.Speech.AudioFormat.SpeechAudioFormatInfo(8000, System.Speech.AudioFormat.AudioBitsPerSample.Sixteen, System.Speech.AudioFormat.AudioChannel.Mono); NetworkStream stream = new NetworkStream(socket,true); appRecognizer.SetInputToAudioStream(stream, formatInfo); // At the line above a "NotSupportedException" complaining that "This stream does not support seek operations." Does anyone know how to get around this? It must support streaming input of some sort, since it works fine with the microphone using SetInputToDefaultAudioDevice(). Thanks, Sean

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• The problem of outsourcing

  - by Dave

  I work on a project for like two years..but because all the programming stuff was outsourced I dun hav a chance to do more prograing or even technical work... I got very demoralized that nowadaysy job scope is all about delegating other to do the work but I can't learn much technical stuff? What should I do to let myself do more technical stuff like programming at work I thought of coming up with tools that will aid my main application or just resolve issues on my own which I doing so right now any other suggestion anyone?

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• Relation between TCP/IP Keep Alive and HTTP Keep Alive timeout values

  - by Suresh Kumar

  I am trying to understand the relation between TCP/IP and HTTP timeout values. Are these two timeout values different or same? Most Web servers allow users to set the HTTP Keep Alive timeout value through some configuration. How is this value used by the Web servers? is this value just set on the underlying TCP/IP socket i.e is the HTTP Keep Alive timeout and TCP/IP Keep Alive Timeout same? or are they treated differently? My understanding is (maybe incorrect): The Web server uses the default timeout on the underlying TCP socket (i.e. indefinite) and creates Worker thread that counts down the specified HTTP timeout interval. When the Worker thread hits zero, it closes the connection.

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• Using a C#.net DLL in Node.js / serverside javascript

  - by Dve

  I have spent a while playing with node.js and exploring related frameworks such as express and geddy... and I am very impressed, especially with the WebSockets implementation in socket.io. I have a pet project that is an online game, the entire game engine is written in C# and I would like to know if there is anyway I can call the functions of this existing dll from a solution built using node.js, socket.io, express etc? The game engine itself is pretty complete; tested and robust. I am hoping there is some neat way of exposing its functionality without to much overhead. Thanks

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• apache syslog-ng error logs and access logs

  - by uzumaki naruto

  I am trying to send all my apache logs to syslog-ng(on remote machine) which in turn writes to a file. so I configure syslog-ng this way source s_apache { unix-stream("/var/log/apache_log.socket" max-connections(512) keep-alive(yes)); }; filter f_apache { match("error"); }; destination df_custom { file("/var/log/custom.log"); }; log { source(s_apache); filter(f_apache); destination(df_custom); }; and add the following line to apache2.conf ErrorLog "|/usr/bin/logger -t 'apache' -u /var/log/apache_log.socket" but only logs being written to "/var/log/custom.log" are [Mon Jul 13 17:24:36 2009] [notice] caught SIGTERM, shutting down and [Mon Jul 13 17:26:11 2009] [notice] Apache/2.2.11 (Ubuntu) configured -- resuming normal operations I want all logs to be sent to custom.log..... Please help me.... where am I going wrong?

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• Web Sockets Server based on .NET

  - by Alexey Zakharov

  Hi guys, Is there any solid .NET based web socket server? Best regards, Alexey Zakharov

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• mysql.sock doesn't get installed after mysql installation on snow leopard

  - by Hristo

  This is a recent problem... MySQL was working and a couple of days ago I must have done something. I deleted MySQL and tried reinstalling using the .dmg file. The mysql.sock file never gets created and I get the following error messages: Hristo$ mysql Enter password: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (2) I also tried stopping Apache and installing but Apache gave me an error... I don't know if this is good or bad: Hristo$ sudo apachectl stop launchctl: Error unloading: org.apache.httpd I tried the MacPorts installation as well but the socket file still didn't get created. I don't really know what to do and I don't want to reinstall Snow Leopard and start from scratch :/ Any ideas? Thanks, Hristo

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• GCC 4.2 Build error

  - by Mr. Man

  Hi, i am building a C project with Xcode and when ever i build it it gives me this error: ld: duplicate symbol _detectLinux in /Users/markszymanski/Desktop/Programming/C/iTermOS/build/iTermOS.build/Debug/iTermOS.build/Objects-normal/i386/linuxDetect.o and /Users/markszymanski/Desktop/Programming/C/iTermOS/build/iTermOS.build/Debug/iTermOS.build/Objects-normal/i386/iTermOS.o Thanks!

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• Papers on Software Methodology recommendation

  - by kunjaan

  Please recommend me software engineering/methodology/practices paper. So far I have enjoyed: 1968 Dijkstra : Go To Statement Considered Harmful Reason about correctness about program Nikalus Wirth : Program Development by Stepwise Refinement Not worried about program structure 1971 David Parnas : Information Distribution Aspects of Design Methodology 1972 Liskov : Design Methodology for Reliable Software Systems Extensible Language : Schuman and P Jourrand R. Balzer Structured Programming : Dahl - Hierarchical Program Structures 1971 Jim Morris Protection in Programming Languages 1973 Bill Wulf and Mary Shaw Global Variable Considered Harmful 1974 : Lisko and Zilles ADTs

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• mysql.sock file missing after installing MySQL on Snow Leopard

  - by Hristo

  This is a recent problem... MySQL was working and a couple of days ago I must have done something. I deleted MySQL and tried reinstalling using the .dmg file. The mysql.sock file never gets created and I get the following error messages: Hristo$ mysql Enter password: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (2) I also tried stopping Apache and installing but Apache gave me an error... I don't know if this is good or bad: Hristo$ sudo apachectl stop launchctl: Error unloading: org.apache.httpd I tried the MacPorts installation as well but the socket file still didn't get created. I don't really know what to do and I don't want to reinstall Snow Leopard and start from scratch :/ I also tried installing the 32-bit version and same deal. No luck. Any ideas? Thanks, Hristo

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• WCF VS. Sockets

  - by kite

  Hello, I would like to know which of WCF or .NET Sockets is the more efficient and the more recommended in a game developpment scenario. Here are the different parts of the game : -a client/server communication to play on the internet -peer to peer on local network. I would like to know which technology you would use on these parts (wcf on both, socket on both, wcf on one and socket on the other...) and why, if possible. The game involved doesn't require a high communication frequency (3-4 per second is enough). Thanks, KiTe

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• Refactor java code

  - by Alfred

  I would like to refactor code which looks something like this: String input; // input from client socket. if (input.equals(x) { doX(); } else if (input.equals(y) { doY(); } else { unknown_command(); } It is code which checks input from socket to perform some action, but I don't like the if else construction because every time a new command is added to the server (code) a new if else has to be added which is ugly. Also when deleting a command the if else has to be modified.

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• How to use a defined struct from another source file?

  - by sasayins

  Hi, I am using Linux as my programming platform and C language as my programming language. My problem is, I define a structure in my main source file( main.c): struct test_st { int state; int status; }; So I want this structure to use in my other source file(e.g. othersrc.). Is it possible to use this structure in another source file without putting this structure in a header? Thanks

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• Security in programmming?

  - by yesraaj

  What is the best book to read about security issues that should be kept in mind while programming? What should a c++ programmer know about security? Is it worth buying any one of the following book If so which one should I get. Secure Coding In C & C++ Secure Programming Cookbook for C and C++ Writing Secure code

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• serving large file using select, epoll or kqueue

  - by xask

  Nginx uses epoll, or other multiplexing techniques(select) for its handling multiple clients, i.e it does not spawn a new thread for every request unlike apache. I tried to replicate the same in my own test program using select. I could accept connections from multiple client by creating a non-blocking socket and using select to decide which client to serve. My program would simply echo their data back to them .It works fine for small data transfers (some bytes per client) The problem occurs when I need to send a large file over a connection to the client. Since i have only one thread to serve all client till the time I am finished reading the file and writing it over to the socket i cannot resume serving other client. Is there a known solution to this problem, or is it best to create a thread for every such request ?

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• What are the best Perl Introductions and references?

  - by Kieveli

  I've been programming for 15+ years, and I've done perl programming 3 times in the past. Every time I come back to it, I remember nothing of the language. It's very bizarre. Now it's time to hit perl again, and I'm wondering what the best Intro / Reference / Best Practice sites are that people use. Which Perl Intro / Reference site do you recommend?

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• WCF - Compact Framework - Pull data from mobile client

  - by jagse

  Hello guys, I want to communicate xml serialized objects from the server to the client and the other way arround. Now it is (probably) easy to invoke methods from a mobile client (compact framework) using WCF, but is there a way so that the server can invoke methods on the client side or some other way to pull data from the client? I know that callback contracts are not available in the compact framework as you can see here: http://blogs.msdn.com/andrewarnottms/archive/2007/09/13/calling-wcf-services-from-netcf-3-5-using-compact-wcf-and-netcfsvcutil-exe.aspx Originally I thought of socket programming and of developing this by myself, then someone here mentioned WCF. But it seems like WCF only would work in a non mobile environment as I need callbacks. Anyone can help me with this? Is it possible to develop a two way communication with a desktop server and multiple mobile clients using WCF, or will I have to do socket programming? Thanks for any advice or any kind of help!

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• Problem getting Java Streams in HP Tandem (Non-Stop)

  - by AndreaG

  Hi. We are porting a simple Java application between Tandem NonStop systems, from G-Series to H-Series. Java version is 1.5.0_02. When performing basic I/O tasks like getting output stream from or opening a client socket, we receive exceptions like java.io.IOException: Value out of range or java.net.SocketException: Value out of range ("value out of range" is Tandem native jargon for, well, quite everything I suppose). Has anybody got similar issues? i.e. I/O corruption while for example messing with JNI? I suppose there is something wrong with the system, but where might it be? Thank you. EDIT: adding snippets as requested sample snippet (a) - using Runtime.exec () (adapted) Properties envVars = new Properties(); Process p = r.exec("/bin/env"); envVars.load(p.getInputStream()); Stack trace (a): java.io.IOException: Value out of range (errno:4034) at java.io.FileInputStream.readBytes(Native Method) at java.io.FileInputStream.read(FileInputStream.java:194) at java.lang.UNIXProcess$DeferredCloseInputStream.read(UNIXProcess.java:221) at java.io.BufferedInputStream.read1(BufferedInputStream.java:254) at java.io.BufferedInputStream.read(BufferedInputStream.java:313) at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411) at sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453) at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183) at java.io.InputStreamReader.read(InputStreamReader.java:167) at java.io.BufferedReader.fill(BufferedReader.java:136) at java.io.BufferedReader.readLine(BufferedReader.java:299) at java.io.BufferedReader.readLine(BufferedReader.java:362) at util.Environment.getVariables(Environment.java:39) Last line fails, and output gets redirected to console (!). sample snippet (b) - using HttpURLConnection: public WorkerThread (HttpURLConnection conn, String requestData, Logger logger) { this.conn = conn; ... } public void run () { OutputStream out = conn.getOutputStream (); } Stack trace (b): java.net.SocketException: Value out of range (errno:4034) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.Socket.connect(Socket.java:507) at sun.net.NetworkClient.doConnect(NetworkClient.java:155) at sun.net.www.http.HttpClient.openServer(HttpClient.java:365) at sun.net.www.http.HttpClient.openServer(HttpClient.java:477) at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:280) at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:337) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:176) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:736) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:162) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:828) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:230) Case (a) can be avoided because it was a workaround for other issues with previous JRE version (!), but same behaviour with sockets is really nasty.

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• Why would a Delphi programmer use Lazarus as the IDE instead of using Delphi's IDE?

  - by lkessler

  I've been very happy with the Delphi IDE for programming in Delphi. But I've heard about the Lazarus programming environment, and I've also heard that some Delphi programmers use it instead of the Delphi IDE. What are the advantages that Lazarus has over the Delphi IDE, and why would, or should a Delphi programmer switch to it?

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