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These samples demonstrate how to do a few things with the Meanwhile library. Some of these are also tools which can be used to help in debugging and obtaining protocol information. Examples ======== socket.c Compile with `./build socket`. This is the simplest possible client. All it does is connect and authenticate to a host (specified on the command line). Most of the code is dedicated to performing I/O. sendmessage.c Compile with `./build sendmessage`. Expands upon socket.c to send a message via the IM service after login, then immediately logs off and exits. echo.c (forthcoming) Compile with `./build echo`. This extends on the socket example above, but introduces the use of the IM service. All incoming messages will be echo'd verbatim back at whomever sends them. Can anger co-workers. pipe.c (forthcoming) Compile with `./build pipe`. Extending upon the echo example, but is slightly more amusing and can be possibly useful for scripting. Will output all incoming IM messages to stdout. Listens on stdin and will write each line from stdin back to anyone who sent us a message (responding in order received) Since this application uses stdout, glib logging is smothered. blist_storage.c (forthcoming) Compile with `./build blist_storage`. An example of the Storage service and buddy list parser. Operates in two modes, up and down. In up mode, this sample will read a buddy list file on stdin, check it for validity, then upload it to the storage service. In down mode, this sample will fetch the buddy list from the storage service and write it to stdout. Since this application uses stdout, glib logging is smothered. Utilities ========= redirect_server.c Compile with `./build redirect_server`. Acts as a redirecting sametime server; any client attempting to connect to the socket this utility listens on will be instructed to redirect its connection to an alternative host (which is specified on the command line). Useful for ensuring client code can handle redirects correctly when there's no real redirecting server to test against. nocipher_proxy.c Compile with `./build nocipher_proxy`. Acts as a sametime server proxy, passing messages between a real client and server. However, it will intercept and mangle channel creation messages to ensure that they will not be used with encryption. This will cause many clients to fail in strange places (where they demand encryption), but is useful for getting some messages from a service in the clear. Will print all messages in hex pairs to stdout using the hexdump utility. This may be more useful than using ethereal, as it will actually group its output by message rather than by receipt from the TCP stream. login_server.c Compile with `./build login_server`. Acts as a sametime server; any client attempting to connect to the socket this utility listens on will be able to complete handshaking and send a login message. The tool then analyzes the authentication method and data and prints the decrypted data to stdout. This was useful for reverse-engineering the RC2/128 auth method (and determining what one of the guint32 fields of the handshake ack was for). Probably not very useful for anything else. logging_proxy.c Compile with `./build logging_proxy`. Acts as a sametime server proxy, passing messages between a real client and server. However, it will intercept and mangle channel data in order to obtain the unencrypted data. This should be invisible to both the client and the server. Will print all messages in hex pairs to stdout using the hexdump utility, and will print decrypted contents of encrypted channel messages separately. This is certainly more useful than using ethereal, as it groups its output by message as well as provides an unencrypted view of otherwise obscured service protocols.