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<h1>New Features in c3270 3.3
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c3270 3.3 is the current development line for c3270.
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<h2>Changes in c3270 3.3.7p1, 28. December 2007</h2>
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<li>c3270's configure script would not detect missing ncurses
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header files, and c3270 would not build if ncursesw was not installed.
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<h2>Changes in c3270 3.3.7, 25. December 2007</h2>
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<li><b>c3270</b> will now display characters such as
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the <i>notsign</i> <b>¬</b> properly in terminal windows in UTF-8
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Note that this display support requires an <i>ncurses</i> or
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<i>curses</i> library that supports wide characters.</li>
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<li>Added UTF-8 support. If the current locale specifies UTF-8 encoding,
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then all text output (trace data, script interactions, screen snapshots,
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etc.) will be UTF-8 encoded, and all text input (arguments to the
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<b>Key</b> and <b>String</b> actions, etc.) must be UTF-8 encoded.
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In addition, the NVT-mode xterm/VT100 emulator will expect UTF-8.</li>
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<li>Added display of the host code page and locale codeset to the
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<b>show status</b> command.</li>
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<li>Added support for changing the color mappings. The curses color
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for a given host color can be specified with the resource
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<b>c3270.cursesColorForHostColor<i>n</i></b>, where <i>n</i> is a
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host color number (0 through 15), and the value of the resource is a
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curses color number (0 through 7).
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<br>In addition, the field-attribute-based colors used when the host
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does not specify a particular color can be changed via the following
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c3270.cursesColorForDefault
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c3270.cursesColorForIntensified
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c3270.cursesColorForProtected
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c3270.cursesColorForProtectedIntensified
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The value for each of these is a curses color number (0 through 7).</li>
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<h2>Changes in c3270 3.3.6, 23. June 2007</h2>
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<li>The code now builds with ICU 3.6.</li>
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<li>Got local process (<b>-e</b>) support to work again.</li>
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<li>Fixed <b>-mono -allbold</b> mode.</li>
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<li><b>c3270</b> now paints the entire screen, not just the areas it
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intends to use, so there are no uninitialized regions.</li>
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<li>Added support for IBM Code Page 1047 (<b>-charset cp1047</b>).</li>
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<li>Added proxy support via the <b>-proxy</b> option or the <b>proxy</b>
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<li>Added support for the 3270 background color attribute.</li>
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<li>Added more mappings to the 3270 default keymap (<b>IC</b> ->
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<b>ToggleInsert</b>, <b>Ctrl<Key>U</b> -> <b>DeleteField</b>,
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<li>Modified <i>Blank Fill</i> mode to treat trailing underscore
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chararacters ('<b>_</b>') like blanks when checking for input
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<li>Like <b>x3270</b> and <b>wc3270</b>, <b>-model 3278</b> now
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specifies a green-screen 3278 (if the terminal supports color), and
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like <b>x3270</b>, <b>-mono</b> specifies that any color capabilities
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reported by the terminal should be ignored.</li>
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<h2>Changes in c3270 3.3.5, 1. February 2007</h2>
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<li>Allow the use of ICU version 3.0 or greater.</li>
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<li>Fixed a scripting hang when the host disconnects during
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<b>Wait(output)</b>).</li>
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<li>Turned the <b>unlockDelay</b> option back on by default.</li>
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<li>Fixed a problem where <b>unlockDelay</b> could result in the
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keyboard never unlocking, if the host unlocked the keyboard
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<li>Added a workaround for very old <i>snprintf</i>()
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implementations.</li>
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<li>Fixed a problem with the <i>Wait</i> action in the expect glue.
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(Thanks to Jason Howk for the fix.)</li>
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<li>Enlarged the input buffer in x3270if. (Thanks to Igor Klingen for the fix.)</li>
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<li>Fixed a SIGCHLD handler issue on AIX.</li>
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<li>Fixed a problem with CR/LF translation on ASCII file transfers.</li>
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<li>Added a <b>-socket</b> option to x3270, s3270 and c3270 to allow a
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script to connect to a Unix-domain socket to control the emulator, and
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added a <b>-p</b> option to x3270if to connect to the socket.</li>
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<li>Added optional support for <b>plugins</b>, with a first plugin to
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implement command history on VM/CMS and TSO hosts.</li>
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<h2>Changes in c3270 3.3.4, 10. April 2005</h2>
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<li>The code once again builds on Cygwin and other systems not supporting
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<li>Removed spurious 'no child' error messages from pr3287 on some
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<li>Removed unintended blank-line suppression from the output of
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<b>PrintText html string</b>.</li>
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<li>Restored the automatic keyboard unlock delay when processing a
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macro or string. This allows macros and strings with embedded AID
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sequences to work with hosts that unlock the keyboard before they
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finish processing a command. Scripts are presumed to be able to
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figure out when the host is finished, or can set the <b>unlockDelay</b>
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resource to <b>true</b> get the delay all the time.</li>
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<li>Fixed an apparent hang (actually just extreme slowness) when the
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host sends a message larger than 4 Kbytes on an SSL tunnel.</li>
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<li>Removed spurious 'Wait timed out' errors in the <b>Wait</b>
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<li>Added a newer, more flexible version of Don Russell's RPQNAMES
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<li>Added support for IPv6.</li>
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<h2>Changes in c3270 3.3.3b2, 1. February 2005</h2>
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<li>Fixed a crash when a login macro is used in NVT mode or when the
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host un-negotiates TN3270E mode.</li>
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<li>Temporarily disabled the RPQNAMES Query Reply. It was causing IBM
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QMF to crash. It can be re-enabled by adding <b>#define X3270_RPQNAMES
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1</b> to <b>conf.h</b>. Hopefully a proper fix can be found shortly.
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<h2>Changes in c3270 3.3.3, 31. December 2004</h2>
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<li>Fixed the <b>Transfer()</b> action, which didn't work at all.</li>
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<li>Fixed the default primary/alternate screen size (it was alternate,
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it's supposed to be primary).</li>
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<li>Fixed c3270 color support with ncurses and 80/132 screen-size
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Sometimes only one of the screen sizes had color.</li>
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<li>Fixed the output of NVT-mode ANSI line-drawing characters in the
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<b>Ascii()</b> scripting action.
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These were formerly all output as blanks; now they are output in
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the same was as x3270 3.2.</li>
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<li>Fixed <b>make depend</b>.</li>
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<li>Fixed <b>x3270_glue.expect</b>, which got confused when there was
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a whitespace-delimited double-quote in the emulator output.</li>
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<li>Fixed a scripting hang when an UNBIND command arrived while an AID
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<li>Fixed a problem with the incomplete processing of a NULLing Program
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Tab order, which could leave formatting artifacts on the screen.</li>
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<li>Removed <subchar1> clauses in two of the <b>.ucm</b> files
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that prevents later versions of ICU's <b>makeconv</b> from accepting
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them, and removed DOS carriage-return characters from the CP837
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<b>.ucm</b> file.</li>
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<li>Corrected some DFT-mode file upload problems: corrected the data
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length, and corrected an empty-buffer problem when the file size was
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an even multiple of the buffer size.</li>
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<li>Corrected a DBCS conversion problem with ICU 3.0.</li>
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<li>Added variable buffer-size support to DFT file transfers.</li>
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<li>Corrected a line-drawing character bug in c3270.</li>
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<li>Fixed a buffer overflow problem in the <b>ReadBuffer</b> action.</li>
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<li>Fixed garbage characters generated for APL data by the <b>Ascii</b>
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and <b>ReadBuffer</b> actions.</li>
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<li>Allow 0 timeouts in <b>Wait</b> actions.</li>
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<li>Added Don Russell's RPQNAMES support.</li>
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<li>Removed Minolta-copyrighted code, because of licensing problems.</li>
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<li>Added an <b>aidWait</b> toggle to allow AID actions (<b>Clear</b>,
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<b>Enter</b>, <b>PA</b> and <b>PF</b>) to complete immediately without
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waiting for the host to unlock the keyboard, and a <b>Wait(Unlock)</b>
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action action to block a script until the keyboard is unlocked,
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regardless of the state of the new toggle.</li>
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<li>Turned off the old scripting hack the delayed actually unlocking the
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keyboard for 50ms after the host says we can unlock it. Added a
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<b>unlockDelay</b> resource, which can be set to <b>true</b> to turn
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<li>Added a <b>dftBufferSize</b> resource to set the default DFT
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<li>Added options to the PrintText action to save to a file, to save HTML,
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and to return the text as script data.</li>
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<h2>Changes in c3270 3.3.2, 1. December 2003</h2>
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<li>Made <b>configure</b> more robust when it can't find one or the other
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of <b>libncurses</b> or <b>ncurses.h</b>.</li>
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<li>Got automatic pr3287 start-up (<b>-printlu</b>) working again.</li>
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<li>Corrected a problem in <b>x3270_glue.expect</b>, which caused
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Tcl syntax errors if a string began with a dash. <i>Thanks to David
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Taylor for the fix.</i></li>
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<li>Error messages are now written to the trace file.</li>
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<li>The response to the TELNET TIMING MARK option has been changed to
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make it compatible with the majority of TELNET clients.
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The response to DO TIMING MARK is now WONT TIMING MARK.
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To restore the previous behavior (responding with WILL TIMING MARK,
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originally derived from the BSD TELNET client), set the resource
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<b>x3270.bsdTm</b> to <b>true</b>.
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<h2>Changes in c3270 3.3.1alpha10, 7. September 2003</h2>
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<li>Made nondisplay fields invisible to the <b>Ascii()</b> action.</li>
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<li>Corrected start-field values at the beginning of data stream traces
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and in the 3270 Read Buffer response.</li>
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<li>Corrected a tight loop in the macro error cancellation logic.</li>
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<li>Added a <b>ReadBuffer()</b> action to dump the entire contents of
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the 3270 buffer, including field attributes and extended attributes.</li>
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<li>Added a <b>suppressActions</b> resource, a list of the names of
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actions to disable. This is primarily for controlled environments where
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the user does not have access to the <b>c3270</b> command line, but can
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edit keymap definitions.</li>
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<li>Added a <b>Setverbose</b> function to <tt>x3270_glue.expect</tt>
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to allow verbosity to be changed on the fly.
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<i>(Courtesy of David Taylor.)</i></li>
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<h2>Changes in c3270 3.3.1alpha9, 25. July 2003</h2>
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<li>Removed the concept of 'per-host' resources. Use profiles for
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<li>Fixed idle commands. They were pretty much hopeless in 3.3.1alpha8
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<li>Fixed a bug in processing the Modify Field order, which would cause
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the character set attribute for the field to be accidentally reset to
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<li>The TELNET START-TLS option is now supported.</li>
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<h2>Changes in c3270 3.3.1alpha8, 15. April 2003</h2>
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<li>The EBCDIC <i>notsign</i> '¬' can now be entered with <tt>Ctrl-A,
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^</tt> (it formerly caused an error message).<br>
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<li>3270-specific and NVT-mode-specific keymaps (e.g., keymap.base.3270)
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are no longer ignored.</li>
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<li>When there is an ambiguous multi-character match in a keymap, the
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correct matching keymap entry is now displayed in the keyboard event trace
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<li>Builds cleanly on Linux with <tt>-Wall -ansi -pedantic</tt>.</li>
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<li>Builds without OpenSSL libraries being present.</li>
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<li>Correctly records Field Attributes in the initial screen snapshot
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in a Data Stream Trace file.</li>
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<li>Auto-Skip fields work properly.</li>
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<li>"Dead" positions in DBCS fields are handled correctly.</li>
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<li>Invalid host DBCS characters are handled better and are displayed
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in the Data Stream Trace file.</li>
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<li>The <b>Erase</b> action now works properly with DBCS characters.</li>
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<li>The <b>Visible Control Characters</b> toggle now works properly.</li>
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<li>New Features:</li>
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<li><tt>Ctrl-A, a</tt> is now mapped onto the <b>Attn</b> action in the
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default 3270 keymap.</li>
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<li>Four more Japanese host code pages have been added: 930, 939, 1390
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and 1399. This uses new support for combined SBCS/DBCS code pages.</li>
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<h2>Changes in c3270 3.3.1, 14. February 2003</h2>
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<li>(Same as c3270 3.2.20)</li>
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<li>DBCS support for Simplfied Chinese and Japanese, including integration
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<li>Tunneled SSL support added (entire Telnet session inside of an SSL
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tunnel). Uses the OpenSSL library. Toggled with an 'l:' (ell) prefix
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on the hostname.</li>
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