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Editing: HISTORY
This is the HISTORY file for Expect. Modifications made by Cygnus support are in ChangeLog. - Don Date Version Description ------- ------- ------------------------------------------------------ 1/31/06 5.44.1 Marius Schamsula <marius173@mchsi.xcom> reported tclconfig missing, evidentally for new TEA. 1/20/06 5.44.0 Lots of massaging to fix TEAification of Makefile and configure including that version numbers will now be full three part. Daniel Wong <danielwong@berkeley.xedu> noted the home page should note that Wikipedia has a very readable entry for Expect. Andre Alves <aalves@escloyalty.xcom> noted passmass needed some fixes to handle Solaris 9 passwd prompt changes. Andreas fixed several things: changes to better support TEA, fix debugger interaction with nonblocking mode, and probably other things I'm overlooking. Martin Dietze <di@fh-wedel.xde> noted that autoconf 2.59 is confused by C comment after undefs in expect_cf.h.in. Added additional code to unbuffer -p so that if a process earlier in the pipeline exits, unbuffer attempts to recover any remaining output from the spawned proc before unbuffer itself exits. Jeffrey Hobbs noted that once stty was called, a bg'd script would be suspended at exit. Turned out to be overaggressive code in stty that recorded what 'damage' the user might have caused when calling stty in the first place. Jens Petersen provided patch to make setpgrp configure better on some Linux systems. Added example/getpassck script to test for getpass bug. multixterm had debugging stuff leftover ("hello"). 2/7/05 5.43.0 Martin Forssen <maf@tkrat.xorg> fixed bug in ExpOutputProc that caused misbehavior during partial writes. Someone noted that gets stdin behaves differently (returns -1 immediately) from tclsh because with 5.42, stdin is unblocked by defaults. Robroy Gregg <robroy@armory.xcom> noted that expect_background ignores timeouts. Added to documentation. Jens Petersen <peterson@redhat.xcom> provided patch for "mkpasswd -vo". Gary Bliesener <gary.bliesener@nextel.xcom> noted that multixterm failed on his system which had an old Tk that didn't support the Tk package. 8/3/04 5.42.1 Removed beta designation. Daniel A. Steffen <steffen@ics.mq.edu.xau> provided patch for MacOS to avoid panic-redefinition. 7/6/04 5.42b0 Releasing as beta because nonblocking mode is a big change in the code. http://expect.nist.gov/beta.tar.gz Alexander Doktorovich <alexander.doktorovich@ericsson.xcom> wanted to use Expect as a filter. This is possible but 'too hard'. To make it easier, added close_on_eof command to control whether expect/interact automatically close the channel on eof. This should simplify/enable other scripts. Kurt Heberlein <kurth@3pardata.xcom> noted that Expect would hang. Andreas tracked it down to a change in Tcl such that when Tcl had data left in its buffers, it would check for more data rather than returning what it had to Expect first. If no data was forthcoming then Tcl would hang because the pty driver runs in blocked mode. Recoded to use nonblocking mode. Yi Luo <yluo@brocade.xcom> noted that multixterm xterms were reporting the parent's X window ids (via the WINDOWID env variable) instead of the new ones. Dick Van Deun <dirk@dinf.vub.ac.xbe> noted that kibitz expects to find write in /bin but it is in /usr/bin on Slackware. Seems safe to drop the prefix. Steve Lee <steve@tuxsoft.xcom> noted that building Expect failed on Linux when built from scratch because stty ends up in /usr/local/bin rather than the assumed /bin. Added code to support this. 4/20/04 5.41.0 Simon Taylor <simon@unisolve.com.xau> provided fix for interact -o which was completely broken by 5.40.1. 4/6/04 5.40.1 Added scroll support to official tkterm. Copied all fixes from/to term_expect to/from tkterm. Kiran Madabhushi <maskiran@hotmail.xcom> encountered interact diagnostics incorrectly pointing to expect_background. Also, found multiple -o flags behaving unexpectedly. Added diag. Kristoffer Eriksson <ske@pkmab.xse> noted typo in SIMPLE code in exp_inter.c. However, this is extremely unlikely to affect any machines. Reinhard Max <max@suse.xcom> noted that "make test" failed when run in the background. The log testcase was testing the send_tty command. Added code in both Expect and in the test to handle this. 1/30/04 5.40.0 Eric Raymond <esr@snark.thyrsus.xcom> provided troff-related fixes for the expect, lib, and dislocate man pages. Rich Kennedy <rickenne@cisco.xcom> noted a bug having to do with our caching of whether we have registered a filehandler. This broke when Tcl was setting a handler on the same file. Ken Pizzini <ken.pizzini@explicate.xorg> provided patch for leak in spawn error handling. Pete Lancashire <plancashire@columbia.xcom> noted autopasswd example broke on Solaris which capitalized prompts. 7/31/03 5.39.0 Poorva Gupta <poorva@cup.hp.xcom> noted that grantpt/unlockpt order was backward. Strange that this was never a prob before! Andreas Kupries <andreask@pliers.activestate.xcom> noted that in exp_command.c, Tcl_GetChannelHandle expected a ClientData*, but got an int*. sizeof(int) != sizeof(ClientData) on 64bit platforms. Crashed the command on a PA-RISC 2.0 machine with --enable-64bit set. Fix: Use temp. variables of type ClientData to retrieve the fd's, and copy this into the actual variables, with a cast to int. More fixes from Andreas to sync this version with SF. Fixed: exp_chan, weather, exp_main_tk. Eric Raymond <esr@snark.thyrsus.xcom> provided a troff-related fix for the multixterm man page. 7/29/03 5.38.4 Nicolas Roeser <n-roeser@gmx.xnet> noted confusion with md5 so I made the Expect page more explicit about which file that hash was based on. 7/11/03 5.38.3 Josh Purinton noted that earlier fix wasn't quite right. Exit on INT/TERM should cause Expect to exit with signal embedded in status. He also requested I obfuscate email addresses in this file. 7/7/03 5.38.2 Guido Ostkamp <Guido.Ostkamp@t-online.xde> and Igor Sobrado <sobrado@string1.ciencias.uniovi.xes> noted that fixline1 rewrote scripts to be expect scripts even if they were expectk scripts. 5/27/03 5.38.1 Dirk Petera <dirkpetera@yahoo.xcom> noted that any_spawn_id used to work but did no longer. Looks like a bug left over from the the I18L conversion. Fixed. Steve Szabo noted exp_log_file -open channel failed. Fixed. Fixed bug from 5.31 that prevent stty from returning messages from underlying program. Thomas Dickey <dickey@herndon4.his.xcom> noted that ncurses ignores 2-char term names because of, well, poor assumptions and coding. Changed tkterm to use longer names. Heath Moore <hmoore@systran.xcom> noted that exp_clib could lock up if remtime happened to be precisely 0. Recoded to avoid. At request of Per Otterholm <otterholm@telia.xcom>, wrote script to read from stdin and echo passwords (exercise 9 in Tk chapter of Expect book). Added to example directory as passwdprompt. Josh Purinton <josh@purinton.xorg> pointed out that by default, SIGINT/TERM should cause expect's return status to be 1, not 0. Paul Reithmuller <paul.reithmuller@eng.sun.xcom> noted that unbuffer shouldn't postprocess its output. Added stty_init. Mordechai T. Abzug <morty@sanctuary.arbutus.md.xus> noted that log_file wasn't recording -append status. James Kelly <macubergeek@comcast.xnet> noted weather example needed new source. Dimitar Haralanov <mitko@tahoenetworks.xcom> noted that interact dumped core with interact { timeout 1 } 7/18/02 5.38.0 At request of Hugh Sasse <hgs@dmu.ac.xuk> added md5 hash of gz to homepage. Dave Schooler <dave@stashtea.xcom> reported that send -s wasn't handling certains chars correctly. Turned out to be those that had multibyte UTF8 reps. send -s was just pumping out hunks of bytes without regard to UTF boundaries and evidentally Tcl's I/O engine thought that it should translate a partial UTF8 character into, uh, something else. Curt Shroeder <c.schroeder@computer.xorg> fixed bug in rftp - a a filename looked enough like a 3-digit diagnostic that the script got confused. 4/16/02 5.37.2 Multixterm couldn't find man page all the time. 4/16/02 5.37.1 Made multixterm handle user-supplied args. 4/15/02 5.37.0 Added multixterm to example directory. 4/8/02 5.36.1 Backed out CONST qualifiers. Too much trouble with older versions of Tcl. I'll let someone else worry about them. 4/8/02 5.36.0 Made first cut at multixterm, a replacement for crlogin. Fixed bug in background handler. If an action waited on the same spawn id, esPtr would become invalidated. Ryan Schmidt <rschmidt@mac.xcom> noted configure didn't recognize MacOS X. Downloaded new config.guess. Andreas Kupries <andreask@activestate.xcom> provided CONST patches to accomodate Tcl changes per TIP 27. 2/25/02 5.35.0 Joe Eggleston <joe@arbor.xnet> noted bug in full_buffer test. The test hadn't been I18'd properly and was testing chars instead of bytes. Also fixed diagnostics so it printed when it was testing full buffer even if there wasn't one. 2/7/02 5.34.1 Bruce Hartweg <brhartweg@bigfoot.xcom> noted that direct spawn ids were not being tested so something like "expect -i exp9999" would dump core. Evidentally a bug from the 5.31 transition. 12/20/01 5.34.0 Don Porter <don.porter@nist.xgov> provided package-related fixes for test suite. Brian Theado <brian.theado@usa.xnet> noted that interact's -re support broke when offsets kicked in. Turned out that the regexp engine supports them during execution but the results are delivered RELATIVE to the offset. (I suspect this was done due to expediency.) 10/1/01 5.33.0 <mark@doradosoftware.xcom> found that expect's diagnostics didn't include the "no" after testing for a full buffer. Hemang Lavana <hlavana@cisco.xcom> noted that "debug" (Dbg_On) calls didn't always force the debugger into step mode. Martin Kammerhofer <dada@sbox.tugraz.xat> noted that the man page neglected to document interpreter -eof. Chris Clare <clarec@nortelnetworks.xcom> provided fix for multiple decl in C lib. Sheng Wang <wangs@sh.bel.alcatel.xbe> found interact's can-match code had broken. It was missing the special hook that Henry had added just for this purpose. How strange. Dieter Fiebelkorn <dieter@fiebelkorn.xnet> requested addition to config.guess for Power*Macintosh:Darwin for MacOSX. Aside - to download latest config.guess: cvs -d :pserver:anoncvs@subversions.gnu.org:/cvs co \ autoconf/config Added pipeline example to unbuffer man page. 8/4/00 5.32.2 Allen J. Newton <anewton@alturia.fleet.xorg> provided code for generating passwords with special characters in mkpasswd. Brent Welch <welch@ajubasolutions.xcom> changed the fix1line install script so that "autoexpect" and other scripts that get installed into the platform-independent bin directory generically invoke "expect" from the users PATH instead of hardwiring the platform-specific expect pathname. TclPro 1.4 released with 5.32.2 bundled. 7/13/00 5.32.1 Uwe Klein <uwe-klein@foni.xnet> reported segfaults from reading nulls. Due to code rewrite in 5.30->5.31 transition. 5/14/00 5.32.0 New version for timing with Ajuba TclPro 1.4. This version of Expect has no new features or behaviors but a lot has been fixed since 5.31.0. Martin Buchholz <martin@xemacs.xorg> noted that his alphaev56-dec-osf4.0e has ptmx and ptmx_bsd (and ptm, pts, pty, ptym). He suggested that BSD things are now usually deprecated so to skip ptmx_bsd if ptmx avail. Chang Li <changl@neatware.xcom> noted that debugger's bp cmd broke on every command. Was a bug in breakpoint_trace from when we installed the new regexp engine. Jonathan Kamens fixed printf formats in several pty diags. rm_nulls -d was set to wrong value. 5/12/00 5.31.8 After receiving yet another request for fully versioned archives, gave in. Signal handler sometimes sent error to stderr inappropriately. 4/27/00 5.31.7 Rob Savoye fixed Debian ptys and properly checking of libpt. 3/8/00 5.31.6 Petrus Vloet <petrus.vloet@siemens.xat> noted that Expect installed tclRegexp.h which included regex.h which of course misbehaves when it reads the system's version. This is new since 8.0. Since I need to revise the Clib anyway (which is what this install was for), I'll back this out for now. 3/6/00 5.31.5 Larry Virden noted that configure checked for threads twice. 2/19/00 5.31.4 Omer Azmon <oazmon@telsoft-solutions.xcom> note errors in pty_termios.c in exp_pty_test that caused problems during pty testing. Jeffrey Hobbs recommended having configure accept and warn about --enable-threads. John Ellson <ellson@lucent.xcom> noted configure's autoconf testing had leftover debugging code. Also provided a fix for building w/shared libs on HP - appeared to be leftover from earlier Tcl-required configuration that has now disappeared. Susan Muston <smuston@crosskeys.xcom> noted that exp_wait with no spawned processes exited immediately which is different than 5.29 behavior which reported "no children". This new behavior was evidentally a gratuitous change during the channel driver addition. Backed out. At the same time, neither behavior matches documentation - doc should be fixed and improved except I'm not sure if the behavior should yet be something else (depending if stdin closed or not). istvan.nadas@epfl.ch reported "spawn cat;exp_open" failed. Uninited variable. Scriptics reported memory leak. Was bug in parse_expect_args. "Michael P. Reilly" <arcege@shore.xnet> noted clib was hanging in spawn code. status_pipe wasn't being closed. Egil Kvaleberg <egil@kvaleberg.xno> provided fix due to new gcc which defines strchr as a macro. Dave Morrison <drmorris@corp.phone.xcom> noted some printfs in exp_log.c that misinterpreted embedded %'s with resulting core dumps. Dick Goodwin <goodwin@qosnetics.xcom> noted that "system echo foo" returned with no apparent effect. Due to closeonexec in expect's channel driver. Added skip if std channel. Fixed similar bug in stty command. Minor bug left in stty which isn't passing output back from underlying exec. Stacy W. Smith <stacy@ixc-comm.xcom> provided patch that uses sigsetjmp instead of setjmp that he says fixes a problem he encountered with C lib where it stopped timing out in expect() as if the signals were corrupted. The man page doesn't explain the difference between these calls in a way that makes sense as to why they should make a difference, but I'll the names are certainly suggestive so I'll try it. He says "it appears that the linux setjmp behaves a little differently compared to setjmp on some other OSs. Specifically, setjmp on linux does not save the signal context. It seems most BSDish OSs do save the signal context with setjmp. On those machines, it appears setjmp(env) is equivalent to sigsetjmp(env,1) whereas on linux, setjmp(env) is equivalent to sigsetjmp(env,0). My patch made a (probably bad) assumption that if siglongjmp() exists that we should use the sigXXX versions. I specifically tested for siglongjmp rather than sigsetjmp because on linux, sigsetjmp is just a #define for __sigsetjmp. It appears that linux will give the BSD behaviour if __FAVOR_BSD is defined, but I didn't know what other implications that might have. Michael Schumacher provided fix so that test for whether configure was out-of-date worked when not using the default build dir. 11/1/99 5.31.3 Shlomi Mahlab <shlomi@seagull.co.xil> noted all.tcl in CVS but not distribution. More notes from Keith Brown on HP cc complaints in exp_pty.c. 10/28/99 5.31.2 "Keith Brown" <surely@nortelnetworks.xcom> noted that HP cc objected to auto aggregate initialization in expLogChannelOpen. 10/22/99 5.31.1 Official release! P Darcy Barnett <pdb@cam.nist.xgov> noted Makefile could produce "autoconf not found" for non-developers using CVS. Made configure detect and provide advice on workaround. Fixed bug in interact -echo exhibited in rftp example. Ryan Murray <rmurray@cyberhqz.xcom> noted Expect wasn't handling handling 8-bit bytes correctly. I had accidentally used Tcl_Write instead of Tcl_WriteChar. Ashley Pittman <ashley@ilo.dec.xcom> noted that digital unix V5.0 prefers openpty (4000 ptys) over ptmx (60 ptys), so I'm reversing the login in pty_termios.c. This also controls linux, but no linux hackers have weighed in on this subject yet. Andrew Tannenbaum <trb@world.std.xcom> noted exp_internal command and "expect -exact" were broken. 6/29/99 5.31.0 See the NEWS file for this date for an overview. (I'm too tired to add all the details. Maybe later.) Fixed exp_clib so that it immediately reported failure of exec (in spawn) rather than passing it back through pipe. Removed error checking from ioctl(TIOCSCTTY) to pacify the variety of (but not all) Linux systems and a few others which define TIOCSCTTY but return an error although seem to work anyway. Added configure test for 0 vs 2-arg setpgrp. Kenji Kamizono <kenji@math.columbia.xedu> noted it was possible to compile Linux (2.2.5) so that it recognized both openpty and ptmx leading to conflicts. I arbitrarily chose ptmx. 10/15/99 5.30.2 Herve Tireford <tdes46@email.sps.mot.xcom> noted extraneous sleep(20) in clib. Apparently left over from debugging, oops. 8/18/99 5.30.1 Added test for newer versions of Tcl that are incompatible. Kenji Kamizono <kenji@math.columbia.xedu> noted it was possible to compile Linux (2.2.5) so that it recognized both openpty and ptmx leading to conflicts. I arbitrarily chose ptmx. 4/1/99 5.30.0 Martin Forssen <maf@crt.xse> provided fix to allow configure to start with LDFLAGS from environment. Paul Tazzyman <Paul.Tazzyman@one.xat> noted that log_file didn't check for logging twice without turning off logging first. Ben <spy@calvin.iconoclasm.xorg> provided updated host for weather example. Jonathon Kamens noted that Expect didn't build properly if Tcl and/or Tk used build/install directories out of the usual hierarchy. At the same time, I fixed a number of other related problems in Makefile/configure. Pierre Pomes <ppomes@it.marseille-innov.assoc.xfr> provided fix to ftp-inband. It blew up from an unprotected send that was handed a uuencoded line that started with a -. Autoexpect was thrown off by simple-minded [file executable] test picking up expect directory while searching for executable. 1/21/99 5.29.0 Martin Forssen provides mods to support INSTALL_ROOT. Bryan Surles <surles@scriptics.xcom> modified configure.in to map DBGX to the same value as TCL_DBGX so the .so is named correctly. Suresh Sastry <suresh@scriptics.xcom> forced $LIBS to be added to EXP_SHLIB_LD_LIBS. It's not clear to me why this is necessary (since Tk doesn't) but he was having a problem with openpty not being found during runtime on Linux. Martin Forssen noted expectk was crashing if a Tcl error was encountered. He found that exp_exit_handlers() was trying to write into interp->result after interp had been deleted. Added another copy to distribution site - with version number. Stanislav Shalunov <shalunov@mccme.xru> closed race in pty code. Fixed man page: -brace should be -nobrace. Dan O'Brien <dmobrien@lucent.xcom> noted that Expect needed to call Tcl_FindExecutable at startup for info nameofexecutable. Robbie Gilbert <rwg@nc.fnc.fujitsu.xcom> noted indirect spawn ids occasionally failed. Fixed. 9/30/98 5.28.1 Brian France <franceb@fsj.co.xjp> noted that his compiler rejected label with no statement. 9/28/98 5.28.0 Fixed two bugs in tcl-debugger (see that HISTORY file). Submitted Expect documentation for official NIST review. At their request, modified a couple things. 9/21/98 5.27.0 Added support for Tcl 8.0.3. Simple compiles already work fine but exotic things break. In particular, Expect needed to understand new TCL_DBGX feature. Massaged debugger interface which was recently revised. Karun Krishnaswamy <karun@transarc.xcom> noted that pine didn't run in term_expect. The problem was that pine uses curses (or terminfo) directly (!!) and insists on clear-to-eol (a really dumb thing to insist on since it's so easily emulated). bert@xpilot.org (Bert Gijsbers) (of xpilot fame) provided patch to passmass to handle ssh protocol and explanation of how to create new password entries. 6/15/98 5.26.1 Dean Sauder <dsauder@dcn.att.xcom> noted C-preprocessor lines in configure must start in column 0. 5/18/98 5.26.0 Kevin Schleicher <kms@lucent.xcom> noted xkibitz leaves xterms if first xterm is HUP'd. Kevin also noticed a resource leak in dislocate. Both problems fixed. Robbie Gilbert <rwg@fns.xcom> noted expect_devtty was logging devtty (twice) to stdout. Fixed. Added support inttypes.h, required on Solaris 5.6 for termios.h Kristina <kristina@greatbasin.xnet> noted that tip failed when spawned from a cgi script (BSDI BSD/OS 3.1 i386) because tip didn't see a definition for SHELL and HOME. They need to be set. (Doesn't have to be anything useful; the empty string is fine!) Solution: documented this in Expect man page. Zachariah Baum <zack@studioarchetype.xcom> noted that config.sub didn't recognize Intel 686. Found a newer version that did in autoconf-2.11. POTENTIAL INCOMPATIBILITY: Changed interact so that it observes parity while matching. It used to ignore parity. This impacts people who use interact to connect through to a real serial device that generates parity. If matches don't work, use the exp_parity command. (This fix should have been made years ago, when the exp_parity command was added. It is now absolutely necessary now that people are doing matching with 8 bits.) After the second occurrence of a system admin who broke grantpt by removing setuid from the relevant system util, I added an explicit test and explanation. Disabled history in xkibitz. There seems to be some new incestuous relationship between history and unknown now so that redefining unknown leaves Tcl calling history but without knowing what it is because it's never been defined (as it would be by the traditional unknown). Fixed quoting bug in passwd.cgi example. 9/28/97 5.25.0 Switched back to hand-generating pkgIndex.tcl file after too many complaints about problems running pkg_mkIndex. 8/12/97 5.24.1 Chris Schanzle <chris@goof2.ncsl.nist.xgov> pointed out that install fails on a virgin file system because install_shared_ lib depends on a directory that hasn't yet been created. Larry Virden gave corrections to URLs in README. 8/21/97 5.24.0 Bo Johansson <bo.johansson@mbox2.swipnet.xse> noted TclWordEnd had changed and provided fix. This caused crash in expect. 8/18/97 5.23.0 This version supports Tcl 8.0 and continues support for 7.6. Refs to Tcl_Files dropped. inter_return and close became obj cmds. Rewrote notifier (again) to accomodate new notifier model. Lots of other miscellaneous tweaks. Also see debugger HISTORY file. Finally removed long-deprecated commands "continue -expect", "send_spawn", and "getpid" and their exp_ versions. Harold Brauer <harold.brauer@canada.cdev.xcom> reported problem with an old SCO system (i386-unknown-sco3.2v5.0) that turned out to be due to a typo in the configure script. Jimmy Aitken supplied mods to config.guess for brand new and very old Pyramid systems. Buz Owen noted memory leak in use of expect_background (with no args). Jonathon Kamens noted provided patch for pty_termios.c for modern Sequent (which ptmx). Jonathon Kamens noted that TCL defined RANLIB for shared lib (if --enabled-shared) which isn't appropriate when Expect tries to build both shared and unshared libs. Jonathon Kamens noted that shared lib config didn't work on SunOS. I had used Tcl's SHLIB_SUFFIX instead of its SHARED_LIB_SUFFIX. Qingyi Liao <liao@casabyte.xcom> encountered core dump when exp_bg -i $exp_spawn_any was retracted. Bug in ecmd_remove_fd. Fixed a bunch of bugs in example/gethostbyaddr. Josef Sachs noted that stty cannot be caught when no /dev/tty. It calls exit instead of returning an error. Gordon Chaffee <chaffee@plateau.CS.Berkeley.XEDU> patched Exp_WaitCmd - it was zeroing pid element instead of wait. Bob Manson <manson@cygnus.xcom> provided fix for HP on which it was possible for timer to be mistakenly deleted in exp_get_next_event while processing a pty open event. Jeff Slonaker <JSlonaker@osc.uscg.xmil> noted that exp_poll.c had wrong signature and poll had arguments out of order! That would suggest that no one has ever used exp_poll.c before... 5.22.1 Larry Virden noted that TCL_BUILD_LIB_SPEC can't be used if build directory has been removed. Added check to configure. Worked more on package command. Buz Owen pointed out that my code wouldn't support redefinition of TCL_LIBRARY. Bumped up minor version to avoid package loading mishaps. Nigel Standing <nigel@idiom.xcom> noted lack of C-u binding in tkpasswd - must be due to change in tk4.2. Forced env(SHELL) to be defined inside kibitz for when using with CGI. Charles Packer <packer@fermi.gsfc.nasa.xgov> noted that CRAY-YMP needed sys/types.h in exp_console.c Extra / when developing defn of TCL_LIBRARY. Shouldn't actually cause any problems though. 2/3/97 5.22.0 Fixed package support - again. Sigh. David Pasirstein <dpasirst@sun.cs.wcupa.xedu> noted that RedHat Linux 2nd passwd prompt requires slightly different pattern - modified mkpasswd and tkpasswd. Toshiaki Nomura <nom@yk.fujitsu.co.xjp> provided patch to config.guess for Fujitsu DS/90. Roger Brooks <R.S.Brooks@liverpool.ac.xuk> noted C lib passed argv[0] instead of file to first arg of execvp. Cary D. Renzema <caryr@mxim.xcom> noted that a simple puts -nnl might never appear - Expect closes all of its fds before Tcl gets a chance to flush. Stdout is the obvious problem since Expect thinks it can cavalierly close that too. Hmm. At request of Tom Tromey, solved possible missing tclRegexp.h problem by having Expect install it. Cleaned up TCLHDIR and TCL_LIBRARY hackery in Makefile. 12/27/96 5.21.7 Nelson Beebe noted unset is not portable in /bin/sh. Removed and converted everything to understand CONFIG_SHELL. Modified cryptdir to strip out shell metachars from filenames. 12/10/96 5.21.6 Michael Schumacher noted that some systems cannot build unshared libs from shared objects. Chose to go with BLT's approach of building shared objs in separate shared directory. Buz Owen <ado@bbn.xcom> noted that "package require Expect" didn't work because it looked for Expect lib in the wrong place (well, the "documented" place). The problem is that Tcl insists libraries should be in the same directory as the pkgIndex.tcl file while the natural thing to do would be to split them up and put the .tcl file in the arch-indepent app-specific scripts dir and the lib in the arch-dependent common dir. Sigh. If this is ever fixed/changed, the instructions in the Makefile should be fixed. <Van.Trinh@siemenscom.xcom> noted that expect library name exceed filename max on some systems - like his old SCO. 12/4/96 5.21.5 Michael Schumacher noted new configure wasn't passing on Tcl's shared lib cflags. 10/26/96 5.21.4 Achyutram Bhamidipaty <ram@epic.xcom> ran into bugs in Expect's file event handler which prevented expectk from entering implied event loop. Also found one memory problem - thanks to CenterLine. Tom Tromey fixed handling of --enable-shared when overriding Tcl's value et al. Tom also added missing "else true" to Makefile: "In a Makefile, you have to always supply an "else" clause for an "if", to work around a bug in certain versions of sh. In some versions of sh, an "if" whose test fails will return the status of the test if there is no "else" clause -- causing spurious make failures." See ChangeLog. 10/18/96 5.21.3 Example directory was missing several examples. 10/17/96 5.21.2 Debugger section of configure file corrupted. 10/10/96 5.21.1 Oops, distribution unpacked into wrong version. Tom Tromey provided patch for stty to understand OSF 4.0. 9/28/96 5.21.0 Official Expect release for Tcl 7.5. Junio Hamano <junio@twinsun.xcom> provided fixes for aclocal for with_tcl/tkconfig. Roger Billau <rfbilla@amtnet.sandia.xgov> noted that C library didn't work on Solaris 2.5. Turns out Solaris requires fflush be called between input and output operations on FILE pointers. Lots of Cygnus mods - see ChangeLog. Sid Cowles <scowles@incyte.xcom> and Hans Riethmann <hans@F1.telekurs.xch> noted relative path specs of tcl-includes (and others) caused debugger config to fail since it is at a different directory level. Al Snow <asnow@fuwutai.att.xcom> noted -C failed due to typo. 8/17/96 5.20b18 Andrew Rakowski <andrew.rakowski@nr.usu.xedu> noted no defn of LIB_RUNTIME_DIR, a creation of Tcl7.5p1. Tom Tromey added -v to Expect and -version to Expectk. Ben Boule <bboule@xylogics.xcom> noted that Interactive (IUNIX) requires 9 char max length after -l. Looks like squeezing out the "." is sufficient. He also noted that IUNIX needs -Xp in LIBS to find strftime. This test should really be done by Tcl. 8/12/96 5.20b17 Glen Biagioni <glen@prosoft.xcom> noted interact -re "A(xx)" failed to match. Problem turned out to be that Tcl 7.5 changed a constant which in the regexp code, which Expect didn't see because it provides its own defn for interact. Alas, the one thing Expect reuses from Tcl was where the change was. This should really be fixed so Expect doesn't rely on Tcl in this way, but there's no point in putting in a lot of work on regexp when we're anticipating a new one soon anyway. Bjorn S. Nilsson <nilsson@nbivms.nbi.xdk> noted fixcat hangs. Turned out that new Tcl (7.5p1) now waits for all children to disappear. But Expect still had a handle to a child. I added an exit handler to close the connections before Tcl's exit handler. Tom Tromey provided patch to support augmenting CFLAGS on Makefile invocation. Gary Merinstein <gmerin@panix.xcom> noted that configure failed on his linux unless it had --enabled-shared. Not quite sure about how this can be, but the flag wasn't being passed to the debugger's configure, so I've fixed that and hopefully this will cure the original prob. Added initial announcement of full version at beginning of configure. This should ease my pain in responding to people sending me config output without including version numbers. Tom Tromey noted expect_cf.h was machine dependent. Fixed expect_comm.h so that it no longer required expect_cf.h (which should be renamed to indicate it is no longer public). Bart Robinson <lomew@cs.utah.xedu> provides mods to support openpty() in FreeBSD/NetBSD. Without openpty, Expect doesn't see the full pty namespace (ptyX[0-v]). 7/15/96 5.20b16 Nathan Estey <nfe@the-hermes.xnet> noted that Makefile failed on SunOS when shared libs were enabled due to incomplete dot stripping in lib prefix. 7/6/96 5.20b15 Malcolm Tredinnick <malcolmt@geko.net.xau> noted that shared lib has to be installed before building expect. Also noted that ldconfig should be run on Linux 2.0 systems and maybe others. 6/25/96 5.20b14 Tim Mooney provided fixes to obey --includedir and similar configure conventions. 6/25/96 5.20b13 A bug when installing Expect using new _installed targets. 6/24/96 5.20b12 Numerous complaints from Solaris users about shared libraries. Unfortunately, no one is giving me configure-ready fixes so (and Tk's configure seems to have bugs as well) so fixing these is like throwing darts. Stan Brown <stanb@netcom.xcom> noted noidle example broke when fed "-". Gordon Irlam <gordoni@cygnus.xcom> noted typo in install-sh. David Sheinberg <sheinb@bcmvision.neusc.bcm.tmc.xedu> noted no args test for spawn -open/leaveopen. Misc patches from Tim Mooney to pacify much of gcc -wall. Kayvan Sylvan insists Linux stty reads from stdin so added hardcoding to configure.in for that. In xkibitz, Linux stty -raw didn't disable all post-processing. How odd that it is not a problem in interact. In the meantime, added extra stty to xkibitz to do what was missed. 5/30/96 5.20b11 Kayvan Sylvan <kayvan@sylvan.xcom> noted quoting bug in autoexpect. 5/22/96 5.20.b10 Patches from Larry Virden in Makefile.in and exp_int.h 5/20/96 5.20.b9 Too many substitutions in configure caused sed failures on DEC (limit 99) and HP (100). Commented out definitions that weren't absolutely critical. Hopefully, this gets us under the limit but can't be sure since there's no easy way of knowing. Numerous mods from Mark Diekhans to support clist-style ptys on SCO OpenServer. (He says SVR4 ptys are broken on that platform.) Simon J. Gerraty <sjg@zen.void.oz.xau> says that write() returns 0 inside of exact_write on SunOS. This is outside the SunOS spec so of course we have no idea what's going on. So I added code to try and recover from (or at least warn of) this. Tom Tromey unified decls of errno to #includes. 5/13/96 5.20b8 Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.xedu> pointed out backwards stty test - this would have corrupted every platform! He also pointed out that alpha-dec-osf3.2 (3.2c) complained too many args to sed. Someone earlier said similarly about HPUX 10, but I assumed it was the quotes in the weird stty flag I was passing, so that "fix" wasn't. GNU sed has no problem, but obviously this is not sufficient for many people. 5/10/96 5.20b7 Renamed/numbered versions so that it's easier for others to track. Upgraded to autoconf 2.10. Matthias Kurz <mk@baerlap.north.xde> noted Makefile problems with final Tcl7.5. Blair Zajac <blair@gps.caltech.xedu> noted configure mishandled stty defaults on HP and shared lib must be installed executable on HP. autoconf insists on adding -O to CFLAGS when using gcc. Ack! 3/23/96 5.20b1 Beta release 1 of Expect for Tcl 7.5. Michael Hunter <mphunter@qnx.xcom> provided misc mods for QNX. Various people reported problems with IRIX. Removing from the stty list fixed the problem. Similar problem with Solaris. Added explicit close to autoexpect. Added a mechanism for enabling conservative mode after script is generated. Hal Schechner <hal-j@netusa.xnet> pointed out passwd.cgi must meet passwd's requirement that it not be run by an unrelated user. Easy enough - just do an su first. 3/26/96 5.20a5 Alpha release 5 of Expect for Tcl 7.5b3. Added example passwd.{html,cgi} to change a password. Many fixes from Stephen Williams <steve@icarus.xcom> and Jonathon Kamens for Makefile and configure. 3/22/96 5.20a4 Alpha release 4 of Expect for Tcl 7.5b3. Added version number to lib directories (POTENTIAL INCOMPATIBILITY). Revised gethostbyaddr example - evidentally hadn't worked for some time! Jan Nijtmans <nijtmans@nici.kun.xnl> provided pkgIndex.tcl.in. Renamed Exp_Init to Expect_Init to support package cmd. Provided #define so that Exp_Init will continue to work. Revised exit handling so that it works if Expect is dynamically loaded. aclocal.m4 Patches from Tom Tromey. 3/15/96 5.20a3 Alpha release 3 of Expect for Tcl 7.5b3. Edward Haletky <elh@astroarch.xcom> noted that Machten required inclusion of types.h in exp_tty_in.h. Added various patches from Rob Savoye. One incompatibility is that the static lib now ends with the version number. Added support for TCL_SHLIB_{LD_LIBS,VERSION} in Tcl b3. Jonathan Karges <J.Karges@dkfz-heidelberg.xde> found that clib was timing out immediately on -1. 3/6/96 5.20a2 Alpha release 2 of Expect for Tcl 7.5b2. Leland Joseph <leland@tec.tetd.bellcore.xcom> noted expect-tests.exp exceeds the 14 character filename length. Added config.{sub,guess} to support AC_CANONICAL_.... Rewrote much of aclocal, configure.in, and Makefile.in to handle Tcl/Tk config.sh files and shared/dl support. Simplified varargs/stdarg mess for Expect's C library. Threw away closetcl junk. No longer required because Tcl finally started doing close-on-exec. Incorporated various fixes from Tom Tromey at Cygnus. See ChangeLog for details. Added require/provide support. Rejiggered event handling to support new Tcl_File interface. Removed libexpectk. Because event loop was moved into Tcl, it is no longer necessary for it to be different than libexpect. Removed all support for earlier versions of Tcl and Tk. Numerous misc patches from Paul Eggert <eggert@twinsun.xcom> most to support Tcl 7.5. Arnold Robbins supplied yet another patch to fix earlier problem noted by Hume Smith. David Engel <david@ods.xcom> reported problem with Linux dumping core. CenterLine, of course, immediately found the problem - uninit'd lowercase buffer. Peter Haggerty <haggerty@borg.lib.vt.xedu> noted that his Next died in cron. It seems that Next doesn't support O_NOCTTY (even though the man pages says it does) and so during pty testing, control terminal would get allocated and then kill the process (by generating a HUP) when deallocated. Avoid by ignoring HUP when doing pty testing on such machines. 1/3/96 5.19.0 Fixed bug that made expect report wrong string when using a terminating anchor in a positive-length glob match, reported by Graham L. Randall <grandall@nit.airtouch.xcom>. Added rlogin-display to included examples. rlogin-display automatically propagates your $DISPLAY when you rlogin. Hume Smith <hclsmith@localhost.isisnet.xcom> noted problem with day of the week calc at year end/start. Arnold Robbins supplied fixes. Jonathan Kamens provided fix to make sync byte reads recover from EINTR. Henry Spencer noted errant line of spaces in Makefile. 10/21/95 5.18.1 Began adding support for tcl7.5a1/tk4.1a1. (not finished!!) - Make aclocal understand new Tcl/Tk directory layout for finding tclInt.h and private libraries. - Added support for Tcl_AsyncReady. Paul Townsend <aab@aab.cc.purdue.xedu> noted that distclean did not remove some config cruft. Also recommended unsetting M*FLAGS that cause make called from configure to fail. Various fixes from Cygnus. See Changelog. Deleted "-" before rm in loop in deinstall in Makefile as per Doug Claar <dclaar@hprtnyc.ptp.hp.xcom>. Doug also found prob involving recent STTY fix. Symptom was that pty wasn't correctly inited in cgi scripts on HPs - and Cray pty support blew up entirely. Added exp_ prefix to tests so that they can be run with other extensions. Seth Ornstein <pp001465@pop3.interramp.xcom> noted bug in the way rftp detected symlinks. Upgraded to autoconf 2.4. This fixes a bug in AC_PROC_CPP which blew up when CPP was defined in the environment. Noted by John Pfuntner. Jonathan Kamens noted that library didn't check return pipe() return value. Added vrfy example. Przemek Klosowski <przemek@rrdjazz.nist.xgov> Irix 6.0 fails to use ptys that have been used by someone else. SGI admitted this is a bug and the solution is to upgrade to 6.1. Yoad Grinberg noted "expect -timeout" mistakenly ate next arg as pattern. 8/24/95 5.18.0 Wayne Christopher noted that the way exp_eval_with_one_arg modifies the original argv makes the ICEM Tcl compiler unhappy so I rewrote it to avoid that. Ian Zimmerman <itz@rahul.xnet> found that a braced arg list of a single pattern beginning with a \n caused expect to reeval for multiple args twice. I added a -nobrace flag that expect and/interact can use internally to prevent this. Florian La Roche <florian@jurix.jura.uni-sb.xde> noted a few glitches in the way -ltcl was searched for in aclocal. Joachim Posegga <posegga@ira.uka.xde> noted lack of Tcl internal includes should be an error during configure. 8/10/95 5.17.8 Martin Wunderli <wunderli@baloo.limmat.net.xch> found missing quote in config. Danny Faught noted problems in Makefile when passing STTY defn with quotes. Created another a STTY-less CPPFLAGS for cases where additional reexpansion occurs. Danny Faught noted bug in error handling for checking permission problem with /tmp. 8/1/95 5.17.7 Todd Rimmer <trimmer@mantis.ssw.xcom> noted that HP 10 with optional streams package has both PTYM and PTMX which conflict in pty_termios. Rainer Wilcke provides fixes: scripts not listed as dependency. distclean target used Makefile after deleting, and many fixes to man pages. Saad Mufti <mufti@hobbit.pls.xcom> noted bug in how C library handled polling (when handling multiple fds). Jeff Bowyer noted more autoexpect bugs. 7/22/95 5.17.6 More features added to autoexpect (now version 1.3). Sanjay <sanjay@clef.lcs.mit.xedu> noted bug in TCLH config macro which caused it to use 7.3 instead of 7.4. Rodney Barnett <rlb@us.teltech.xcom> noted expectd.proto had a few refs to interact_out where it should've had expect_out. Terry Rhodes <tbr@88open.xorg> noted that Expect returned a 0 exit status upon syntax error unlike tclsh and wish. Fred Obermann <fredo@conan.ids.xnet> noted that Unixware 2.01 native development tools don't permit configure to find memcpy because memcpy is handled specially by the compiler and it complains when it finds configure's default test with no args. Changed to a hand-crafted test with args. 7/12/95 5.17.5 Jeff Bowyer <jbowyer@muni.xcz> noted minor bugs in autoexpect. Rob Saul <robs@sco.xcom> noted that configure failed on SCO OSR5 because trap requested by Cygnus (to allow config in bg) used higher traps than SCO sh knows about. Changed "can't happen" to "xmkmf is broken" when configure fails to compile simple C-Tk program. John H. Chauvin <jchauvin@netcom.xcom> noted exp_tty_current and cooked raised multiple def errors on SGI 5.3 with native cc. 7/9/95 5.17.4 Wolfhardt Lotz <s11@blue.lrw.uni-bremen.xde> noted Solaris doesn't do case-insensitive man page lookups so I lowerized the beginning of the .SH lines. Henry Spencer noted unbackslashed quotes in the autoexpect boilerplate. 7/3/95 5.17.3 Modified VARARGS decls to support new Tcl 7.4 definitions. Fine-tuned aclocal so that it would prefer later versions. Added autoexpect example and man page. 6/30/95 5.17.2 select-based dsleep() was returning an internal expect-style return code instead of a Tcl-style. 6/30/95 5.17.1 Kannan Varadhan <kannan@isi.xedu> noted aclocal didn't look in right directories to find Tk. 6/30/95 5.17.0 Modified regexp interfaces to support Tcl 7.4b4. Mods from Tony Isles <ittony@traf.xcom> for Sequent Dynix/ptx V2.1.5 (which is really old). Michael Schumacher <hightec@rz.uni-sb.xde> noted that Solaris 2.4 header files require __EXTENSIONS__ for all sorts of traditional but non-standard definitions. Modified aclocal to support new Tcl/Tk library names. George Forman <forman@cs.washington.xedu> requested support in C lib for fds that already exist. I added exp_spawnfd. Fixed bug preventing signal rearming on Linux (using SV-style signal handling). Wayne Christopher <wayne@pmac.icemcfd.xcom> noted missing interp in call to exp_error. Added null support to interact's exact matching. Bruce Jerrick noted INSTALL was being used rather than INSTALL_PROGRAM/DATA. Dennis Ferguson <dennis@mci.xnet> noted that on Solaris 2.4 close(pty) occasionally returns EINVAL. Added tests so that if we can't get a pty, we can give the user much more help with what to do about it. Steven Byrnes noted that Solaris has replaced TIOCCONS with SRIOCISREDIR interface. Technically speaking, interact shouldn't do buffer-shuffling but I've added as a fail-safe mechanism to catch people who use preposterous patterns. Alan Heckert <heckert@tiber.nist.xgov> noted missing decl in Convex pty support. Fixed all expectk examples for Tk4. Bryan S. So <so@cs.wisc.xedu> noted that interact -o eof failed if an unbuffered pattern was partially in progress. Added -timeout flag to expect command to override timeout var. John Pfuntner <pfuntner@VNET.IBM.XCOM> noted that OpenMVS did not notice @ inside of Makefile SETUID macro as suppression but instead treated it as part of the program name. Jim Porter <James.W.Porter@att.xcom> noted that exp_free_i freed the variable name even if not allocated. Yet more mods to aclocal and various .in files from Rob Savoye. 4/21/95 5.16.3 Matija Grabnar <Matija.Grabnar@ijs.xsi> noted that sleep maxed out after about 36 minutes. Turned out to be a poor assumption in some interfacing code. 4/19/95 5.16.2 rbd <uport@netcom.xcom> noted tcl_RcFileName multiply defined when compiling with Tk4. 4/16/95 5.16.1 Robert Nicholson <robert@steffi.dircon.co.xuk> noted NextStep's sys/wait.h is not POSIX-like so WNOHANG fails to get a defn. Alexandre Rafalovitch <arafalov@socs.uts.edu.xau> discovered example on dislocate man page didn't work. I fixed it. 4/8/95 5.16.0 gcc 2.3.3 complains about internal errors so I figure: time to upgrade. Switched to Cygnus 2.6-95q1. Works now but now complains about wait status. I trashed all the gory wait status configure code and adopted autoconf's suggestion about refusing to use sys/wait.h if not POSIX.1 compatible. Nice! Jeffrey C Honig <jch@nr-tech.cit.cornell.xedu> requested a -gmt flag for timestamp command. Chuck Ocheret <chuck@gigadactyl.xcom> noted that expect -pty fails. Problem is that Tcl's exec blindly closes all the fds between 3 and its own highest fd. See comments in code. Loris Caren <loris@caren.demon.co.xuk> noted eof in fg bombs on Linux. Turns out to be analogous to eof in bg problem fixed in 5.14.0. Upgraded to autoconf 2.3. Continued making changed to config script to take advantage of autoconf 2 capabilities. 4/1/95 5.15.4 Steve Simmons noted .x remnant from earlier dir install proc. 3/31/95 5.15.3 Forgot to export TCLHDIR defn when configuring debugger. 3/29/95 5.15.2 Steve Simmons <scs@aisinc.xcom> noted Makefile multiple defined distclean and it might be nice to provide aclocal.m4 even though it isn't normally used. cevans@resdev1.ppco.com added prompts to passmass for AIX. 3/27/95 5.15.1 Fixed tkterm script - inadvertently left tic debugging on. Also add support for Ctrl-space and Ctrl-@ as requested by Zbigniew Wieckowski <wieckows@cs.umn.xedu>. Larry Virden asked that configure also check for .so libs. 3/23/95 5.15.0 Everitt Beers <ebeers@scf.usc.xedu> noted that Linux doesn't support kill -STOP 0. Changed 0 to [pid]. zhengping (z.) you <you@bnr.xca> found bug where a bg expect did not rearm a spawn id after a first bg expect (and another one) to clear it. Elliott Wolin <wolin@physics.wm.xedu> noted that tkterm complained if tic wasn't found. I'll have it override the user misconfig in that case. Also noted that interact failed on AIX. Evidentally, my new config tests for ISC found that AIX looked just like it. Added additional test for tcsetattr to distinguish them. Rob Savoye asked for Dbg config.in to be distributed. Rob supplied numerous other mods: install-sh replaced install.sh, mkinstalldirs, testsuite mods, new aclocal.m4, support for recursive make. Fixed bugs in configuration of debugger. Disabled configure's file-caching. Kannan Varadhan <kannan@isi.xedu> noted incorrect diag reporting TCLHDIR in configure. Marty Olevitch <marty@howdy.wustl.xedu> noted that DEC Alpha did not sleep correctly because configure didn't find sleep and found poll (which is broken). Problem turned out to be a bug in autoconf's AC_CHECK_FUNC. Got patch from Jim Meyering <meyering@comco.xcom> Fixed config probs for Edward Huie <huie@net.xcom> on Mac SE/30, System 7.1, Tenon Intersystems' MachTen 2.1.1-G (BSD 4.3 on Mach kernel) and MachTen X11R4 3.1. Moved libraries forward in configure to allow for AC_CHECK_FUNC to succeed when funcs are in other libraries. Made configure test for Linux and unset CFLAGS=-g if so. 2/25/95 5.14.3 Larry Virden noted configure was missing brackets in raw shell cmds evidentally due to m4 interpretation. 2/24/95 5.14.2 Larry Virden noted configure was not correctly rewriting from --(exec-)prefix. Due to new autoconf. Also noted glob was finding tclX directory. Hal Peterson noted that because configure now actually attempts a link before using a library, the code to check for -ltk would have to worry about all the other utility libraries first. 2/23/95 5.14.1 Hal Peterson noted that configure.in checked incorrectly for tcllib. 2/22/95 5.14.0 Jamal <root@lonestar.tlug.xorg> noted Linux has tic in a different place than on my system - affected tkterm script. Xiaokun Zhu <xiaokun@stats.gla.ac.xuk> noted problem on DEC Alpha OSF/1.3 evidentally due to backwards decl of index macro. Greg McFarlane <gregm@nms.otc.com.xau> noted that large args in send cmd cannot be passed blindly to exp_error. david d `zoo' zuhn <zoo@armadillo.xcom> requested modifying configure so that it did not require Tcl/Tk to be built - only configured. This means that it may not find installed libraries. Hopefully, this won't cause anyone problems but its not my preference. Fixed error which caused spurious eof when changing patterns in expect_bg. Moved to autoconf-2.1 and m4-1.4. Rewrote a LOT of the config file. Finally got my hands on an ISC box and fixed configure for that. Tony Booker <tb@sequent.xcom> provides mods for Sequent ptx 2 and 4. Jeffrey Friedl <jfriedl@nff.ncl.omron.co.xjp> provided fixes for timezone handling in config and exp_strf.c. David Schmitt <dschmitt@netcom.xcom> noted that library did not detect eof on HP. I didn't think this was necessary for read() but it evidentally is. I added the support for raw fds although it is not obvious to me how to do it for FILEs. James Carter <jimc@math.ucla.xedu> noted expect_after couldn't worked in the exp_bg because I had accidentally written BEFORE instead of AFTER when checking the cases. He also found that the eof body could be trashed in an exp_bg. Ousterhout apologized for the Tcl7.4 change I noted in 5.13.1 and said he will undo it. Eric Frias <efrias@vt.xedu> found library bombed after timeouts. exp_match_end was not updated - which makes sense since there was no match - however the following expect call assumed that exp_match_end was meaningful in order to do its buffer shuffling. Jonathan Kamens supplied new configure test for REARM_SIG after noting old could fail if limit prevented creation of core file. He also noted REARM_SIG had accidentally been commented out of cf file. Vincent D. Skahan <vds7789@aw101.iasl.ca.boeing.xcom> noted that Apollo's stty reads stdout and doesn't complain if its bogus. Yoad Grinberg <grinberg@vnet.ibm.xcom> noted that SIGCHLD does not work for forked processes, only spawned processes. Fixed this and added counting to make sure none get lost. Hal Peterson contributed mods for Unicos. He noted that configure should be more careful adding libs to the link line. On the Cray, non-existent libs generate warnings which are not detected by configure but which annoy make. Bela Gazdy <bela@euch3e.chem.emory.xedu> noted /etc/resolv.conf misspelled in kibitz. Rainer Wilcke noted that "send -null/break" mishandled return code, and these and send/expect_tty were not in man page. Dvorak example was missing -- in send -. 1/12/95 5.13.2 Peter Wassenaar <peterw@stack.urc.tue.xnl> noted that kibitz didn't work on AIX. My fixcat script assumed that AIX's cat was like HP's cat - buffered by default. 1/7/95 5.13.1 Marc Bouron <mbouron@lhr-sys.bru-ro.DHL.XCOM> noted I forgot to add virterm to distribution. Marc W. Mengel <mengel@dcdmwm.fnal.xgov> noted that configure must be run in the foreground due to the stty tests. Added this to documentation. Modified interpreter to account for the change in Tcl7.4 which forces Tcl_RecordAndEval to call Tcl_GlobalEval instead of Tcl_Eval. Changed ptys to be initialized based on current tty setting rather than original tty setting. Stephen Melvin <melvin@zytek.xfr> noted that set -e is the real problem with ash (see 5.13). I bet "[" is returning a value and triggering it. It appears that the script can live without the set, so out it goes. Braun Brelin <bbrelin@netcom.xcom> noted pipe allocs in spawn could fail with meaningless error message. 12/15/94 5.13.0 Synchronize with appearance of "Exploring Expect". This distribution corresponds to the book both in description of Expect and in containing all the substantive examples. Graham Mark <gam@lanl.xgov> noted that his Cray (Unicos 7.0.6.1) didn't recognize TCSETCTTY. Since this was in some Cray-specific code, I guess Unicos must have changed some .h files. I made it include either termios or termio. It, at least, works on our Cray (Unicos 8.0.2.4). Robert Withrow <witr@rwwa.xcom> noted that FreeBSD 1.1.5.1 supplied union wait but waitpid doesn't use it! So I modified configure to be smarter. He also noted that its /bin/sh is really ash which blows up on install.sh. It appears that it doesn't handle uninitialized parameters correctly. I'm not going to fix this because having a broken /bin/sh is so awful probably other things are breaking too. He did note that it worked if he switched to bash or the native install, but that blows the whole point of install.sh - that we have found too much variation in native installs. Rather than try and figure out everyone's variation, we'd like to simplify our life and use this common, simple-to-understand sh script. Added more example scripts: Adrian Mariano's virterm (like expect_term but without relying on Tk), gethostbyaddr, and expectd.proto for telnet daemon. Matt DiMeo <mdimeo@brooktree.xcom> noted that expect_background failed to detect eof on HP. I had forgotten to pass the mask. Josef Sachs noted that expect_background put Tk's event handler in an infinite loop if it was listening to a pipeline that was killed. I had aborted the cleanup procedure if Tcl's close reported an error. That was a mistake. Rick Lyons <rick@razorback.brisnet.org.xau> noted a bug. C lib expect would turn a normal read into a poll if remtime reached zero on the nose. Added ResetResult to Exp_Init to clean up diags in Expectk. Made GENFUNCs return -1 on error as per ParseArgv's convention. 11/13/94 5.12.0 Alon Albert noted that in clib, exp_match_end should be init'd to exp_buffer before trying to match the pattern - if the expect doesn't produce a match, exp_match_end is incorrect and will be wrong for subsequent expects. Steven Diamond noted that fg expect did not react to a change in an indirect spawn id list if it was just waiting for I/O (rather than looping in exp_continue). Wait fix in previous version broke system() whose return value is horribly overloaded. 11/10/94 5.11.0 Stephen Fitzpatrick <sfitzp@cs.qub.ac.xuk> noted that NeXT wait macros do not accept int wait status. Switched to using Tcl's detection of wait status type. Made log_file -leaveopen leave file id open until close like spawn -leaveopen did. Bruce Jerrick <bruce@cse.ogi.xedu> noted public include dir wasn't getting created. Karl Vogel noted 1) Pyramid has index instead of strchr, strf.c needs sys/time.h instead of time.h in strf.c, needs to call timezone(), and stty reads stdout but usual stty test fails. Made expect_out(spawn_id) always be written to assist people who want to log different procs to different files. This is no longer an efficiency problem because interact can do so much more then it used to. Made full_buffer condition write forgotten chars even when full_buffer isn't explicitly specified. Bert Robben <Bert.Robben@CS.kuleuven.ac.xbe> noted that the debugger needs to know about the presence of stdlib.h. I was hoping to avoid this because it's a pain getting configure to call another configure. Rainer Wilcke provide several improvements for xkibitz and man page. 10/6/94 5.10.0 Moved example files around. Added password generation to tkpasswd. Created standalone script to generate and set passwords - good for all those adduser shell scripts. Rick Cady <rickc@NSD.3Com.XCOM> found a bug when switching log files. Rainer Wilcke <wilcke@esrf.xfr> noted that xkibitz died when closing a connection. stdin was mistakenly being closed. He also noted that killing xterms under HPUX 9 requires kill -9. Enzo Michelangeli <enzo@airhk.air.xorg> noted that SCO 3.2.1 defined window size structure in ptem.h. Josef Sachs <sachs@panix.xcom> found a bug when calling fg expects repeatedly between bg expects. On the first fg expect, it cached the fact that the filehandler was armed. The next background expect disarmed it but failed to update the cache. John P. Rouillard" <rouilj@dstar.iddis.xcom> provided configure support for --with-{tcl,tk}{lib,include}. Mike Figg <figg@pencom.xcom> noted that man page used old style of continue command. 8/23/94 5.9.1 Adrian Mariano noted it would be useful to have exp_continue not reset the timer. Added flag to support this. Morris Gasser <gasser@ksr.xcom> noted that lowering match_max didn't work (lib was broken too). Keith Hanlan provided a fix for exp_exact. Added more examples: mkpasswd, tkterm, term_expect. Put close_tcl_files in sep file for easier non-Tcl use of clib. 8/21/94 5.9.0 Fixed window handling code - on AIX, termios does not define TIOCGWINSZ. Instead, you have to include ioctl.h. Of course, you have to avoid the trap of including both on OTHER systems such as SunOS 4.1 where the include files conflict! Dan MacDonald found that close in async routine caused sync expect to blow up. Missed deletion of last line of out macro in exp_inter.c Simon Warfield <simonw@bwh.harvard.xedu> noted bug in xkibitz help message. Fixed exp_background to use global scope instead of current. Steve Diamond <sdd@aplcomm.jhuapl.xedu> noted that -i "4 5" only used spawn id 5. Rob Nagler found yet another bug in log_file when called incorrectly. Expectk wasn't creating a window by default. 7/25/94 5.8.1 Made exp_interp external. Users should be able to set this explicitly. David Barnett <davidb@cats.ucsc.xedu> found that Linux was not getting a controlling terminal. The original test for doing that was based on Stevens and tested in a very nonspecific way for the presence of a Sun via CIBAUD. Replaced this with a more specific test. It seems Tcl 7.3 broke my -nostack hack. The top-level interp translates unknown return codes to TCL_ERROR. Sigh. I wish Ousterhout would stop all of those translations. If the user wants them, they can do so themselves, but now they're forced. Martin Buchhoz <buchhlz@vnet.ibm.xcom> suggested adding XKIBITZ_XTERM_ARGS environment variable to xkibitz. He also noted that stty rows/columns support doesn't seem to work on AIX. I haven't yet looked into this. Copied 2nd sync mechanism from Expect to C library. Added exp_child_exec_prelude hook. Jonathan Kamens noted that "spawn cat;close;wait" returned -1 on AIX and 0 on Sun. This is "correct", however to address this, I added -ignore to spawn and otherwise made signals default. Also added extra information to return value of wait if caused by signal. Dan MacDonald <hfvstud@bcarh80a.bnr.xca> noted that exp_continue didn't cause timeout to get reread. Ting Tan <utan@cisco.xcom> noted that when using -b, expect hangs if open brace and doesn't stop in case of error. Oops, broke "log_file" with no args. Removed -timestamp from documentation. Use "timestamp" command instead. Keith Hanlan noted C library didn't test already arrived data before attempting to read more. He also suggested I avoid forcing the user to do save/restores of per-fd globals. 6/24/94 5.8.0 Hubert Halkin <hhalkin@ucsd.xedu> pointed out that interleaved expect_bgs and spawns dump core. I had used the exp_f ptrs as handles to TkCreateFileHandler but realloc shuffled them around. Rick Lyons <pclink@qus102.qld.tne.oz.xau> provided misc. mods for Pyramid. Keith Hanlan <keithh@bnr.xca> noted that HP-UX C compiler causes odd behavior in Expect when it is compiled with "-O. -g" works fine. Peter Gasche <zrspg01@compserv.zdv.uni-tuebingen.xde> pointed out that Convex 10.2 fails to build. New version of Convex OS added getpty(). Naturally, it differs from old one. Testing is tricky because there is no header file for it. Even worse, the algorithm in the Convex man page is incorrect - it allows you to allocate ptys already in use! Unfortunately, the man page is too vague to allow the reader to see that immediately. In contrast to BSD stty, Convex, Mach, and NeXT stty don't complain if redirected to null. I'll just have to hardwire the test in configure. Added -nowait flag to wait command. Upon suggestions from David Vezie <dv@xnet.ssl.berkeley.xedu>: Added -noappend, -open, and -leaveopen to log_file command. Added -leaveopen flag to spawn and exp_open. Modified spawn to close -open immediately. Modified exp_open to close spawn_id immediately. Between Jeff Wright <wright@spock.cen.encompass.xcom>, Brad Skrbec, Arup Mukherjee <arup+@cmu.xedu>, and the anonymous Mach support group at CMU, finally got hard answers about Mach. It is no longer supported and there is no intention to provide full POSIX support. Now, at least, I can fix the configure script to understand this. Added "unbuffer" example. Dana Chee <dana@dino.bellcore.xcom> provided configure hooks for finding -lnsl and -lsocket. Henry Spencer <henry@zoo.toronto.xedu> noted timestamp doc did not jive with C defn. Fixed doc and added timezone support. Steve Pynes <fb@steve@ucsd.xedu> noted that exp_win.c needs _IBCS2 (Intel Binary Compat Standard #2!?!) before it will recognize winsize. He also noted #out was redefined in inter code if using simple_event. Fixed defn of "stty cooked" to retain echo setting. Bennett Todd noted dislocate's pidfile_read was missing close. He also noted useless bind in tkpasswd. Marty Leisner noted that ^C causes xkibitz to exit ungracefully when in interpreter. Added yet another sync mechanism (see 5.6) to spawn so that child cannot eof before parent has prepped the pty (only a probably on HPs, of course). I had actually written most of the code, but left it disabled because I hoped that the problem simply wouldn't happen in practice. Alas, Jonathon Kamens found a case where it does. Jimmy Aitken <jimmy@pyra.co.xuk> noted problem on Pyramid. My original code only looked for /dev/tty##. On pyramid, ptys look like /dev/pts/4. term wants the last two characters, but on the Pyramid, the first of the last two characters can be a / in which case xterm wants a 0. I.e., suffix of /dev/pts/4 is "04". xterm fails completely with 3-digit ptys! I sent a suggestion and patch to X Consortium for this and the pid problem - xterm has no way of telling it to which pid to send the SIGWINCH. Poul-Henning Kamp <phk@TFS.XCOM> noted that -lm would make autoconf forget about other libs. Ram Bhamidipaty noted I forgot to document sleep. Removed disasterous performance with * at beginning of glob. Mods from Rob Savoye. See ChangeLog. Earnest Hua <eh@c-cube.xcom> noted expectk.man need wasn't installed. Bogus arguments to expectk were not reported correctly. Modified clib to catch when user changes match_max between expects on two different fds and then switches back. Rewrote timestamp to get rid of 200 char limit. Ram Bhamidipaty <ram@xor.epi.wisc.xedu> noted NetBSD .9 stty complained "stdout appears redirected, but stdin is the control descriptor". It compares dev(stdout) to dev(stderr) and assumes if they are different then user thinks stty ioctls stdout. This is one case when that assumption is wrong. Fixed fd 2 so it points new 2 and is reset to old 2 if an error occurs. This forced me to remove any diagnostic output from child (in getptyslave) since this now went back to the proc as child output rather than original stderr, sigh. Stephan Winokur <swinokur@pinky.trevose.sgi.xcom> noted that IRIX 4.2 had problems with gcc. While diagnosing, I found PTY_TYPE was used before set. Make doesn't mind (how odd) but I changed it anyway. Made send understand "-null". Deprecated "-0". Made Expect read .expect.rc from DOTDIR if present. 3/30/94 5.7.0 Removed alpha status. Added $(EVENT).o to library. Finally deleted old shar file. Revised README. 3/22/94 5.6.3 Phil Moore <phil@signals.geol.scarolina.xedu> noted termios.h should not come from sys even if it exists. (SGI doesn't have sys/termios.h.) 3/21/94 5.6.2 Paul Kinzelman <pkinz@cougar.tandem.xcom> noted that I forgot to remove -update from documentation. Fixed interact's -i so it understands indirect spawn ids. 3/21/94 5.6.1 expect_background randomly failed. I forgot to save Tk's event mask so occasionally events were incorrectly classified as eof. Added -buffer to expectk and made "nobuffer" the default so scripts are read in much faster. 3/15/94 5.6.0 Added cat_buffers marker to avoid "catu" option to scripts. Got temporary use of an evaluation copy of TestCenter. Promptly found several memory leaks. Oops. Added a synchronization mechanism to spawn so that user cannot send to pty before it is init'd. This also deals with the HP trap more simply. Removed extra open added in 5.5.1. While working on this, it occurred to me stty needs to temporarily disable trap. Added exp_slave_control so that C programmers can get to it portably. Added "expect -ex" to documentation. Fixed winsize bug on Solaris. Added functions to allow user flexibility closing fds in child. 3/8/93 5.5.1 Integrated bug fixes from Arnold Robbins <arnold@skeeve.atl. ga.xus> for his own strftime code. Rob Savoye passed back a patch from OSF to cast ptsname. Added a test for cat. R.K.Lloyd noted HP failed pid test. Turned out to be another bug related to pty-trapping. The test of course, was doing something that a user would never do. Hope this doesn't break other HPs. Pty trapping is becoming less and less clear to me. Ioctls generated by slave look like modem ioctls. Added an artificial open because different versions of HP's stty execute differing numbers of ioctls. In test script, changed each cat to cat -u. 2/17/93 5.5.0 Began a test suite based on Ousterhout's model: make test Added passmass man page. Added decl of exp_tty_original to pty_sgtty.c. Added error_spawn_id Alon Albert <al@mercury.co.xil> provided a bug fix for new buffer handling code in C library. Fix fd leak related to spawn -open. 2/7/94 5.4.0 Some installation improvements from Rob Savoye and Owen Rees. Bug in handling empty string match - crept in recently. Finally fixed longstanding oddness: stty -raw reset echo. Made spawn close all file descriptors. Added exp_open command to get old effect. 1/26/94 5.3.5 Made rftp use /bin/ls to avoid -F from people's aliases. Initialized auto_path. Fixed exp_version so it fails if the major #s are not equal (which is what the man page said). 1/18/94 5.3.4 Jim Meyering <meyering@idefix.comco.xcom> gave config fixes of X handling on Irix-4.0.5 and suggested that tknewsbiff observe DOTDIR. 1/18/94 5.3.3 Kevin Short <short@gdc.xcom> noted some remaining use of malloc and free instead of ck versions. Initialize tcl_interactive to 0 while processing -c flag to avoid unreliable handling of unknown proc. 1/17/94 5.3.2 Jeffry Abramson <jra@hrcms.att.xcom> noted that "spawn -pty" hung on an HP. Problem was trapping was enabled so as soon as I tried to open the slave, Expect blocked waiting for ack! 1/14/94 5.3.1 Forgot to delete a bad call to strcat in exp_internal. 1/13/94 5.3.0 Added -info flag to log_file, log_user, exp_internal, and strace, so you could get original args back out. Wrote tknewsbiff script (and was extremely pleased). Fixed rftp. I must have broke it when I changed to using Tcl's new switch cmd. Also sped it up by replacing split/join nonsense with a single regexp. Danny Faught <faught@convex.xcom> noted that glob patterns returned shortest matches. While fixing this, found that glob patterns ending in $ were broken, too. Massaged libraries and include files. The include file for using Expect with Tcl or Tk is now expectcl.h. libexpect.a now suffices for using Expect's funcs with C or Tcl. Add all the features from Expect into C library including null and full buffer matching. Added exp_buffer (_end) and some other variables to support fd multiplexing better. Made unmatched chars from previous expects remain for future matches. Chen <johnny@e0sun3.ccl.itri.org.xtw> found bug in exp_pid when -i had no arg. Rewrote expect_bg, after, and before so they all handle args the same. Interact and all the expect variables now handle indirects. exp_bg now handles -brace flag. Geoff Bullen <geoff@itx.nsg.com.xau> noted that interact put terminal into raw mode even if stdin was redirected. Rob Savoye provided more configure mods to better find Tcl/Tk. Fixed bug in wait that didn't close down "busied" fds. Kazuro Furukawa <furukawa@apricot.kek.xjp> provided a better default for SHORT_BINDIR in the Makefile and noted that DEC doesn't understand "test -x". 12/3/93 5.2.0 Recent fix was buggy and blew up when eof case still had data in buffer. 11/23/93 5.1.4 At request of Rod Beckwith <rodb@slugo.corp.sgi.xcom> fix some minor things to which SGI cc was sensitive. Fixed bug in dvorak script where eof could occur in nested interact, upsetting original interact. Forgot to change -flush to -nobuffer in man page. Added some more places to search for X11 for Jeff Moore <jbm@internet.sbi.xcom> note. Added yet more fixes and notes for NeXT for Brad Skrbec <skrbec@motcid.rtsg.mot.xcom> who found that NeXT has POSIX include files but NOT the functions that go with them. Sigh. Needless to say, configure is thrown off by this. 11/14/93 5.1.3 John Pierce <jpierce@chem.UCSD.XEDU> noted several declarations that AIX's cc couldn't handle include a struct with same elt name at two different levels. Also _IO is declared twice in AIX include files but only checked once. Fixed bad args in exp_spawnl call in chesslib examples. Can't imagine how it ever worked before. Richard Weidner <richard@cicero.jpl.nasa.xgov> found a bug in configure (test always treats a bare string as true!) that caused NeXT to be declared as POSIX. Fixed two bugs in Tcl_StringMatch2. One caused glob ranges to succeed when they shouldn't. Another was how malformed ranges are handled, and came right from Tcl. Reported to John. Switched Expect library to use T_SM2 from Expect itself. Blair Zajac <blair@olympia.gps.caltech.xedu> noted expectk used CLFLAGS instead of CFLAGS. Forgot to fix mishandling of parens inside of alternation in interact. 11/9/93 5.1.2 Added "null" keyword and remove_nulls command to allow matching ASCII 0 in expect/interact. Rob Nagler <nagler@olsen.xch> noted that expect_background failed if pattern didn't consume all data. event handler knows nothing about data already arrived but not processed. Made Expectk understand -- 11/8/93 5.1.1 Fixed yet another bug in setting expectk's argv0. 11/6/93 5.1.0 Provided support to work with Tcl 7.[0-1] and Tk 3.[3-4]. Pasi Kaara <ppk@atk.tpo.xfi> found an off-by-one in the buffer shuffling when buffers fill up during an expect. Changed \\\$ to \\$ in patterns that search for literal $. Added "spawn -pty" support for xterm -S. Fixed yet another argv problem in Expectk. When run using expectk explicitly, script name was left in argv. Fixed system command's return value to match exec new style. 11/1/93 5.0.4 Mark Davies <mark@comp.vuw.ac.nz> noted that BSD4.4 sysconf returns -1 (a bug). Rewrote to avoid requiring this info. Switched from from explicit refs of sys_errlist to Tcl's strerror. As per Adrian Mariano <adrian@cam.cornell.xedu>, added exp_sleep command primarily to allow sleeping by sub-second intervals. Also avoids exec overhead. Not yet documented. Kartik Subbarao <subbarao@concorde.fc.hp.xcom> noted that on HPUX 9, SC_OPEN_MAX should be ifdef'd on itself rather than HAVE_SYSCONF. Karl Vogel <vogelke@c-17igp.wpafb.af.xmil> noted Pyramid didn't like varargs included twice in exp_command.c. Deleted expect_version variable (was never documented) and deprecated expect_library to be exp_library for consistency. 10/16/93 5.0.3 Lou-Salkind@deshaw.com found interpreter() could stomp past end of input array. Same problem in debugger. Bud Bach noted init.tcl wasn't being sourced, and Makefile broke if all scripts were commented out. Added interesting highlights and bindings to tkpasswd. Made Makefile look for -ltk if libtk.a doesn't exist. Rick Sladkey pointed out that -re patterns to look for $ should "\\\$". R.K.Lloyd noted config doesn't see prototypes with K&R cpp. 10/8/93 5.0.2 Bud Bach noted tcl_interactive was not set. 10/8/93 5.0.1 R.K.Lloyd noted various problems, some related to being on an HP when a lot of #ifdefs kicked in. 10/7/93 5.0.0 Added expect_background. In the Tk environment, this registers actions to be called upon receipt of a pattern from a process. Renamed "debug" as exp_internal" and made debugger available as "debug" and "exp_debug". Milan Gupta <mbg0@bunny.gte.xcom> noted that system() (at least on his HP) hangs when SIGCLD is ignored. <jason@vicor.xcom> noted that Tcl's exec command doesn't bother to close fds, so force them with close on exec. Renamed "continue -expect" as "exp_continue". "continue -expect" will continue to work, just won't be documented. It's just too dangerous when you start mixing extensions. Renamed "return -tcl" as "inter_return". Had to do something to avoid random return values from matching "-tcl". This design was just wrong. Surprising that it never bit anyone. Renamed "expect_version" as "exp_version" just to continue this regularity. Protected initial fd_new's with isatty so disconnect doesn't lose redirected fds. Allowed DFLT_STTY to be omitted entirely. Apollo doesn't need it. Modified fork to fail on failure instead of returning -1. This made spawn failure match disconnect failure. Dan Hyde <drh@citi.umich.xedu> noted missing arg in exp_error. Jerry Whelan <guru@stasi.bradley.xedu> noted -buffer was botched in man page. Hal Peterson noted that bug in man page caused groff to choke. wait now returns {pid, spawn_id, 0|-1, status (or error msg). errorCode is now set if appropriate. wait -i -1 waits for any. Propagated winsize to pty. Documented "-open". Quentin Stafford-Fraser <Fraser@europarc.xerox.xcom> noted that interact -u was broken. Fixed interact's default actions "return"/"interpreter" to be writable. Removed ability to set default eof/timeout. Removed dash from same. Rewrote trap to use Tcl's async support. Added -code switch and made interpreter understand "-nostack" coming from error to use ^C to easily return to interpreter. Introduced following incompatibilities: - ONEXIT interface disappeared. Use "exit -onexit". (Thinking of this as a signal bought nothing but complexity.) Added "exit -noexit" to run all expect-related exit handlers without exiting or destroying interp or ".". Useful for when other apps have exit handlers. - trap command takes missing action as a query. Use "" or SIG_DFL to delete or reset a trap. - SIGCLD gone. Now always called CHLD even if underlying system only knows about CLD. All sig handlers and exit handlers run at global level. Removed setjmp/longjmp crap. Not needed since systems which wait in read don't restart system calls. Added support in expect for "-gl" and allowed longer forms to match Tcl's switch command. Similarly for "-ex" in interact. Rewrote arg parsing for send. Added "stty" command to support stty of ttys other than /dev/tty. Better for /dev/tty, too. This should fix security complaint from BSD's Net2 stty. <R.K.Lloyd@csc.liv.ac.xuk> gave fixes for configure and noted exp_main_tk was missing exp_conf.h. Added "exp_timestamp" command. Fixed bug in interpreter cmd. It wouldn't return anything with TCL_OK. Renamed -flush to -nobuffer. Make interact default to executing actions in raw mode. Accept -reset to execute in cooked mode. Ignore -f. Fixed examples. Fixed bug in "-o -timeout". Deprecated getpid (due to Tcl's pid), added exp_pid. Put "rm -f" inside catch. SunOS 4.1.3 and some version of AIX complain despite the -f! Added "send -break" for Dave Mielke. Fixed argv handling of expectk to match expect for Steve Clark. Switching to Tcl 7.0 8/21/93 4.7.7 Cygnus added support for OSF/1 style ptys. Brian Bebeau <brian@cblph.att.xcom> found bug in PTC support, HAVE__GETPTY, timestamp doc, and provides some mods for config AT&T StarServer. Detection of direct spawn ids failed on -1. 8/18/93 4.7.6 Removed zone and gmtoff from timestamp. Not ANSI. Removed getpid confusion. Once again, added "cat -u" into kibitz (this time for AIX 3.2). 8/18/93 4.7.5 De Clarke <de@lick.UCSC.XEDU> hit error in exp_global.h because tcl.h had not been included. 8/16/93 4.7.4 Richard Kasperowski <richk@icad.XCOM> found that Ultrix 4.1-2 failed to allocate controlling terminal. Ultrix's setsid is evidentally buggy. Switched back to setpgrp - which fixed it. Fixed type defn of exp_tty_original. Dave Mielke found two bugs in interact: re-failure prevented other patterns from matching a particular point in the stream, and two or more -inputs didn't actually work. Also found bug in HP trap handling - despite what docs say, other things besides open/close have to be handled. Specifically, slave was generating an ARGGET. Backed off on trying to wait immediately for two OPENs to just waiting for one OPEN. Perhaps zero? Also found deficiency in return -tcl - failed to return arg. At Dave's request, made cmdfile by read in a single gulp rather than line by line. Added -b (buffer) flag for old behavior. Old behavior performs badly on very long procedures but is use- ful for reading commands from pipes. Made "system stty" return status of raw/echo. Made log_user return previous value irrespective of args. Fixed mishandling of parens inside of alternation noted by Bud Bach <bachww@rtsg.mot.xcom>. Added -timestamp, -iread, and -iwrite to interact and expect. Added -onexec flag to close to solve problem posed by Bellave Jayaram <bjayaram@slee01.srl.ford.xcom>. Added -0 to send. Removed capability of send to send multiple strings. Chip Rosenthal noted bug in releasing trap 0's action. Also modified exit handler to allow recursive invocation. Instead of complaining, it skips handlers that have already been invoked and forces the process to exit. Added new names for most command prefaced by "exp_". Deprecated send_spawn. Switched to Ousterhout's ckalloc and attitudes towards failure. Started adding Tcl 7.0 support. getpid renamed to pid. Added exp_pid to support things that Tcl 7 does with its pid. 6/12/93 4.7.3 fnf@fishpond.cygnus.com noted minor type problems. Rob Savoye noted trap SIGINT overrode debugger handler. Default should be reverse. 6/8/93 4.7.2 Added debugger to public release. 6/7/93 4.7.1 Ed Oskiewicz <eo@ansa.co.xuk> noted prototype botch - exp_cook. Owen Rees <rtor@ansa.co.xuk> noted missing decl for tclRegexpError. 6/6/93 4.7.0 Gert Bultman <bultman@dgw.rws.xnl> exposed a bug in interact's -update. 5/27/93 4.6.0 Rick Sladkey <jrs@world.std.xcom> fixed a bug in send_log - checking a master needlessly and indexing off the end of an array. Rob Savoye made change for detecting libpt.a, modified autoconf for better handling of X, exec_prefix, and ranlib. Kris Woeppel <krisw@cs.athabascau.xca> said SVR3 doesn't have wait.h. Made libexpect.a understand regexp. Reorganized code. It now requires Tcl to be installed first, although it uses only a few utility routines. Hopefully this isn't a problem for anyone. Zack Xu <zack@cs.wisc.xedu> noted exp_main.h needed C++ support. Pascal Meheut <pascal@cnam.cnam.xfr> gave fix for skipping over null bytes while interact is pattern matching. Added "--" to expect, interact, and send. Added support for associating multiple -i's with a single pattern, and -i's with no pattern for use with spawn_id_any. Made interact work with systems that lack select/poll. Added code and #defines for debugger. Debugger itself is not yet available. 4/19/93 4.5.2 Achim Flammenkamp <achim@HRZ.Uni-Bielefeld.XDE> noted that I documented full_buffer as buffer_full. Ted Stockwell <ted@sirius.aggregate.xcom> noted that wait arg was missing an & in configure test. Scott Hess noted that systems can have wait4 without waitpid. Jonathan Kamens <jik@gza.xcom> noted/fixed some things that weren't autoconf'd correctly: pid_t, RETSIGTYPE, malloc. Gary Shea noted that a recent change to expectk made it not default to interactive. 4/12/93 4.5.1 At request of Rusty Wilson <zrlw05@hou.amoco.xcom>, added "-console" to spawn. Pang Wai Man Raymond <wmpang@cuse1.se.cuhk.hk> reported that passmass didn't recognize DEC's passwd prompts for root. 4/7/93 4.5.0 Fixed bug in interact regexp preventing match of multichar literals. 4/6/93 4.4.3 Bennett Todd <bet@sbi.xcom> noted missing example scripts timed-read and time-run. 3/29/93 4.4.2 Bill Houle <Bill.House@SanDiego.NCR.COM reported fixes for SVR4 pty support to compile. Made string matcher understand *$. Documented tty_spawn_id. Made command line -i override -f. For Tuan Doan <tdoan@bnr.xca> on HP, make kibitz use domainname as fallback and used whoami instead of env(USER). Fixed bug in the generic pty code that could report out of ptys because an earlier slave slowly deleted the lock file. 3/25/93 4.4.1 Stephen House <sdhouse@bnr.xca> reported exp_tk.c wouldn't compile on HP. Fixed. 3/24/93 4.4.0 Added back SVR4-style pty allocation which got omitted in the autoconfig process. Fixed bug in interact's -update handling. Fixed bug in weather script that cut off long reports. 3/15/93 4.3.0 Cleaned up /tmp files used during pty locking. Added command "parity" to enable parity stripping. Fixed match_max to do -i correctly. 3/15/93 4.2.4 Fixed to work on new SGI which returns slave-close via excep (select) or POLLERR (poll) rather than thru read(). 3/12/93 4.2.3 Fixed to work on AIX (using /dev/ptc) and UTS (using getpty). 3/11/93 4.2.1-2 Fixed numerous bugs relating to HP ptys. It's amazing that for their bewildering complexity, they couldn't support generation of EOF to the master (or at least enable trapping of just close), rather than forcing the code to know about opens, too. 3/8/93 4.2.0 Integrated Rob Savoye's autoconfig code. Interact mishandled new -eof flag. Added -update. Gary Shea <shea@cs.ukans.xedu> noted that tkwait hung if expect had been called. Rewrote most of tk_event.c and fixed some other problems related to efficiency & multiple timeouts. E Beck <beck@qtp.ufl.xedu> suggested mods to more easily support Extended Tcl. Bill Mitchell <mitchell@mdd.comm.mot.xcom> reported problems on 4.3+BSD. Added support for TIOCSCTTY. Dana Burd <dana@wrs.xcom> noted that "exit" caused by ^C during expect didn't work - just returning to expect. Fixed, and then removed "feature" of ^C to abort a timeout. This feature proved a lot less useful than I thought it would. 2/21/93 4.1.0 Bill Tierney <wtierney@leland.stanford.xedu> noted that double close dumped core. Rewrote fd_to_f and close/adjust functions. Interactive interpreter() didn't properly wait in get_next_event, so Tk stopped responding to events. Wrote version of interpreter that shares expect's input buffers but can't think of a use. Left as an ifdef SHARE_CMD_BUFFER. 1/26/93 4.0.1 Added eof check to xpstat. Removed incorrect and unnec. #includes from exp_main_exp.c Chip Rosenthal <chip@chinacat.unicom.xcom> found my refs to tclRegexpError need externs on systems that don't use Tcl's string.h. string.h should probably be changed not to refer to tclInt.h. Added FAQ about Expect's copyright status. Mark Christopher <christo@bnr.xca> pointed out some really stupid errors in the HP support for select. 12/16/92 4.0.0 Rewrote interact. Made re-entrant thru event-handler for Tk. (Same for Expect.) Abstracted out common code so that remainder is specific to select vs poll vs tk (although "simple" was impossible to handle). Added timeouts, regexps (at request of numerous people), ability to set up arbitrary graphs of process flows, and some miscellaneous but useful functionality. New flags are: -input, -output, -re, -echo, -flush, -eof. Added "-noecho" to spawn command. Added getpid command. Something with this functionality should be added to the Tcl core. When it is, this function will go away. Removed assumption of global "interp" handle. Rewrote init and other routines for use as libraries. Added appropriate glue to Makefile. At request of Rob Savoye <rob@cygnus.xcom> added "send_log" and disabled buffering on all output. The only affect unbuffered output will cause users is if they pass large strings in multiple args to send. Ray Davis <rdavis@masschaos.de.convex.xcom> reported Convex could not do job control from spawned procs. I added a symbol DO_SETSID to force this. Martin Leisner modified rftp to understand iftp. I added it to the publicly donated scripts directory. 11/17/92 3.24.1 Martin Leisner suggested Makefile use $(MAKE) and support Tcl as a Sun shared library. Seth Perlman <seth@welchgate.welch.jhu.xedu> suggested interact support timeout. I've added this as "-timeout" in inter_select but left undocumented while we experiment with interface. Joe VanAndel <vanandel@ncar.ucar.xedu> pointed out that su2 script still used old syntax. Fixed. Konrad Haedener <haedener@iacrs1.unibe.xch> fixed a bug in POSIX tty handling on AIX. Surprisingly, we discovered AIX worked just fine when pty_bsd is used and without -DPOSIX! Doug (George Jetson) <pynq@midway.uchicago.xedu> pointed out that a spawn_id for /dev/tty would be really handy. I added tty_spawn_id for this purpose. 11/4/92 3.24.0 After problem reported by James Ward <jew@sunquest.xcom> added to man page describing delays required by hardware such as for UART switching. Recoded all \C sequences as \### in examples and man page in anticipation of them going away in next version of Tcl. Switched to printing errorInfo during errors instead of the command and only the top-level error message. Since this includes entire stack, this should be very helpful. J. Cazander <cazander:pasichva via serigate@phcoms.seri. philips.xnl> reported that purify found a write beyond the end of an input buffer. Lucked, it was just before a double-word boundary, so it probably isn't a problem. I fixed it anyway. 10/9/92 3.23.1 Tor Lillqvist supplied support for HP 8.0.7 in POSIX-mode, and a bugfix for POSIX tty mode switching 10/8/92 3.23.0 Larry Rogers <lrr@Princeton.XEDU> reported that "weather" blew up in spawn. I'll add a catch-all to the script to report similar problems (out of ptys, processes, etc.) Ting Leung <tleung@bnr.xca> notes that log() in human_write can receive a 0 (domain error). Fixed unit_random to avoid that. Tony Primavera <aprima@xox.ssc.af.xmil> notes that the sample archie script needs to understand mcgill's limit of 10 users. Tor Lillqvist <tml@tik.vtt.xfi> noted that a lesser-used pattern ("unknown...") is incorrect. Grant Taylor <gat@pecan.cray.xcom> found a problem when forking (using Expect's fork) multiple processes, each of which spawned something. In the BSD pty support, I had used the pid to build a temporary file for testing the pty before actual use. When multiple processes tried to use the same tempfile, it blew up. 8/12/92 3.22.13 Corey Satten pointed out that -u on cat caused kibitz to slow down on Ultrix. I see the same behavior on SunOS. I added an option to fix it for systems that need it. Corey also noted arg miscounting in kibitz, and pointed out that world-readable fifos could be a security problem. He gave a fix for this and also a fix to force ptys to be put into raw mode. Terrence Brannon <tb06@pl122e.eecs.lehigh.xedu> reported rftp referenced the undefined variable 'transfer'. Turned out to be a bug in the code to handle symbolic links. 7/20/92 3.22.12 Added O_NOCTTY (if defined) in pty_bsd.c to avoid gaining control terminal while testing pty when running as daemon. At request of Michael D. Riley <riley@mbeya.research.att.xcom> added explanation to man page - how expect_after/before deal with spawn_id. Charles Hannum discovered the problem with AIX (see earlier) was a missing "extern" in the errno declaration. Also, the compiler was sensitive to a lack of access to the defn of struct expect_special. Dave Coombs gave me yet another fix for the weather server to accomodate its ever continual change. 7/2/92 3.22.11 Yet more work. Discovered that SunOS and Ultrix really like setpgrp(0,0) much better than setpgrp(0,getpid()) but the manual doesn't describe well why this seems to work better. (The old call worked inconsistently.) 6/30/92 3.22.10 Did more work on modifications to dissolve connection between stdio and devtty. Eventually, I'd like to add a separate spawn_id for devtty (expect_devtty?). 6/5/92 3.22.9 Hansel Wan <hhw0@gte.xcom> noted that $errorInfo was clobbered by prompt1. To prevent this, I added a default definition for prompt1 (and prompt2 while I was at it). Unnati Amin <uxa@po.cwru.xedu> noted that the example scripts checked for $ in prompts which didn't work. This bug was created when $ was turned into a "match end-of-input" char in the transition from v2 to v3. Solution: backslash the $. A few parts of code assumed spawn_id was always stdin, which caused "send" to send to stdout, which meant succeeding expect's hung, waiting forever. Fixed is_user macro. This was a problem with scripts that redirected stdin or somehow reused fd 0. Surprising that no one ever did that before - also surprising that it didn't bother cron jobs. 6/2/92 3.22.8 Man pages fixes from Matt Crawford crawdad@fncent.fnal.gov. 5/12/92 3.22.7 Missing ; in Makefile, screwed up chmod. Fixed bug that caused interact to think the modes had changed when they hadn't. 5/11/92 3.22.6 Added regression paper to ftp archive - published in the 1992 USENIX San Antonio Proceedings. Swapped setpgrp and fork in disconnect command for sysV88. According to Dave Schmitt <daves@techmpc.csg.gss.mot.xcom>, original code (right out of Stevens) starts the child with closed stdio fds. Fixed bug in interact that changed /dev/tty modes even if interact was used to connect two completely different ttys. Had never been a problem before, but today I wrote some code that actually calls interact from cron! Also, copied the experimental fix from 3.22.5 to inter_poll. Jeremy Nussbaum <jeremy@world.std.xcom> says cat needs "-u" in kibitz for his HP 8.0 system to work. I wonder why this has never been a problem on earlier HP and other systems? Forced Makefile to mark scripts executable. 4/12/92 3.22.5 Fixed bugs reported by Matt Ranney <mjr@uther.Calvin.XEDU> including a syntax error (!) in expect.c on ecases_inuse. I didn't even compile this before pushing out? He also noted some # were not in column 1. I put in an experimental fix to interact (only in select version currently) to fix when pattern matching from master and user needs to continue typing in order to complete match. 4/3/92 3.22.4 Charles Hannum (mycroft@gnu.ai.mit.edu) pointed out that I screwed up a comment in the brand new pty_aix3.c. He also gave me a fix for an arg-less expect, which did a malloc(0). And he said that AIX ptys return EOF in yet a new way - read() returns -1 with errno == 0. Yuck. 3/29/92 3.22.3 Jay Schmidgall gave me yet another pty_aix3.c. He also gave ifdefs for POSIX terminal support. 3/18/92 3.22.2 Jay Schmidgall <shmdgljd+@rchland.ibm.xcom> modified pty_sgi3.c to make a pty interface for recent versions of AIX. Steve Summit <scs@adam.mit.xedu> noted that "trap 0" could actually call signal(0...) Martin Leisner <Martin_A._Leisner.Henr801C@xerox.xcom> noted that rftp was broken. It seems I never handled symlinks. They are interesting. You can't tell from the listing whether they are files or directories, so you just have to blindly go ahead and assume it's one or the other and see what happens! 3/11/92 3.22.1 In talking to Dave Schmitt ,daves@techmpc.csg.gss.mot.xcom>, realized the documentation for wait had never been updated from the way it used to work in v2 (returning any pid). 3/11/92 3.22.0 Another question from Ron, prompted me to find another bug. interact -o wrongly manipulated the user buffer at one point. 3/10/92 3.21.0 Ron Young <ron@nevada.xedu> found that spawn failed on a DECstation 3100 running Ultrix 4.2. I had forgotten to test that cmdfile was valid before comparing against stdin in fix related to fflush in 3.20.0. While I was on a DECstation, I noticed that it does not accept setpgrp(...,0). Changed 2nd arg to getpid(). 3/6/92 3.20.2 Stefan Farestam <farestam@orion.cerfacs.xfr> provided a new version of pty_sgi.c which uses _getpty. I renamed the old one pty_sgi3.c 3/3/92 3.20.1 Brian Woodson requested I update the dates and version numbers. 3/1/92 3.20.0 Prompted by a question from Ken Mandelberg, added -raw to noidle and kibitz script. Fixed fflush(cmdfile) again, having been authoritatively told by net wisdom that there is no way to portably fflush a shared read-stream. (I take back my claim about a bug in HP's fclose!) John Sellens gave me some more fixes for non-DEC MIPS OS. 2/22/92 3.19.1 John Sellens <jmsellen@watmath.waterloo.xedu> gave me a bug fix for NOWAITPID. 2/21/92 3.19.0 Found a bug in HPUX fclose!! It moves the I/O pointer in the shared file table entry! This explains the symptoms I reported earlier. Fortunately, it's easy to code around (by me - it is no longer necessary to fudge the scripts). Added some stuff to the man page to explain why expect behaves the way it does in an emacs shell window and how to live with it. 2/21/92 3.18.0 Worked on the HP port some more. The HP causes a real problem by insisting SIGCLD be delivered in order for wait to return a status. This royally complicated the code, partly because of the special casing all over the place in the trap command, the asynchronous delivery of SIGCLD and also because Tcl itself is not prepared to have system calls be interrupted. The HP also defines both CLD and CHLD which threw my macros off. Anyway, the end result is that on the HP, SIGCLD is ignored. The manual claims wait status will not be delivered but it seems to be anyway. Good grief! (Even if it were ignored, it would not be such a calamity, since wait is used mainly to discard zombies on other systems.) A remaining problem is that there appears to be some odd interaction, perhaps with fork, such that the script is rolled back at eof if a spawned process happens to exit at the same time. The solution for now is to exit all scripts via exit rather than letting exit be called implicitly. There must be some real bug, but I'm unable to find anything after lots of testing, line and Saber. At the moment, I'm highly suspicious of the HP itself rather than expect. Bob Proulx and Jeff Okamoto supplied me with patches for inter_select.c. HP transmits some pty interactions via the exception field in select. Michael Grant gave me a mod to recognize ~ in the logfile and debug commands. 2/17/92 3.17.1 Brian Keves <keves@meaddata.xcom> pointed out that the man page still referred to "expect_match" instead of "expect_out". 2/12/92 3.17.0 Eric Arnold <Eric.Arnold@corp.sun.xcom> ran into a problem when running in the background. interact did ioctl(0...)s to change the terminal mode, ignoring the -u flag. Fixed a bug in kibitz which blew up when asking for a password due to a spelling error. The drawbacks of interpreters... 2/4/92 3.16.3 Dongchul Lim <lim@doctor.chem.yale.xedu> noted that scripts can hang in the background. I had assumed isatty(0) was enough to contrast bg/fg but it returns 1 if the script was started with a & from the terminal. I added code to watch if any ioctl(0)s were done. If so, than it is safe to do more, in particular in the exit handler to reset the terminal modes. 1/28/92 3.16.2 Fixed a bug on SV systems causing errors when trying to do further reads after a SIGCLD had already arrived on a spawn_id. Peter Funk <pf@artcom0.north.xde> gave mods for SCO XENIX 386. 1/24/92 3.16.1 Oops. Forgot to add pty_svr4.c to shar. 1/13/92 3.16.0 Karl Lehenbauer <karl@sugar.NeoSoft.xcom> a tiny change for getting a clean compile on SCO 3.2.2. My getimeofday-avoidance code wasn't right, sigh. Kibitz noticed. Fixed two other bugs in kibitz - password request was for wrong user and it timed out but shouldn't have. Note: seems to work fine with new version of Tcl: 6.2 1/13/92 3.15.1 Added a bit of code to avoid gettimeofday system calls when timeout == -1. Fixed minor bugs in kibitz relating to cleaning up and returning error messages. Redid support for stdlib.h including making it default to fix problem in Ultrix 4.2 reported by Oliver Kretzschmar <viskretz @ikesg1.energietechnik.uni-stuttgart.xde>. Ian Johnstone <ianj@sequent.xcom> said his system (DYNIX 3.2) needed an additional include <ctype.h> in inter_select. Dave Coombs <cme.nist.xgov> added logic to test/weather to accomodate a new feature in the weather server. Hal Peterson fixed some SV code that I just added for handling SIGCLD properly. He made the Cray-extra-child timeout in half the normal timeout to allow distinguishing between eof and real timeout. Finished rest of Jeff Okamoto's fixes for HPUX. Wally Strzelec <packman@tamuts.tamu.xedu> provided mods for Amdahl which has its own pty-handling functions. Ifdef'd into pty_usg. 12/30/91 3.15.0 Fixed a bug that struck when eof occurred when reading from multiple processes simultaneously and no user-supplied eof handler. 12/26/91 3.14.1 Ted Gibson <tgibson@logdis11.hq.aflc.af.xmil> gave me some mods for a 3B2 having to do with termio vs termios, etc. 12/24/91 3.14.0 Deprecated expect 2. Expect 3 is now the official version. Parag Patel <parag@netcom.netcom.xcom> gave me some #includes necessary for A/UX 2. Brian Woodson noticed "send a b" generates incorrect debug output. Working with Jeff Okamoto to run expect on HP/UX 8.0, we fixed SIGCLD catching (he says HPUX doesn't ignore them by default?), obviating longjmp from stomping locals, fixed a bug in cmdWait that would prevent the wait status from being collected in rare situations. 12/17/91 3.13.1 James Davis suggested fixing Makefile to handle case where no example scripts should be installed. I added similar logic for script man pages. Pete Siemsen fixed a bunch of things in the Makefile including where to get expect when invoking fixline1. He suggested defs for supporting install and multiple MAN targets. 12/12/91 3.13.0 Matthew Freedman <mattf@cac.washington.xedu> noted mismatch between lib man page (said "stty_init") and lib code (said "exp_stty"). He also found a screwup in the library such that the pty slave wasn't being set up correctly. Added note to kibitz man page on how to kibitz with 3 or more. 12/12/91 3.12.0 "expect *" worked incorrectly if it was first expect after spawn, due to buffer not being initialized. Added a good example for "expect -continue" to man page. Added an FAQ about a gcc problem that seems to be common. 12/11/91 3.11.2 James Davis noted I forgot to put kibitz.man in distribution. I changed kibitz to read domain from resolv.conf instead of calling domainname(1) for systems upon which NIS domainname differs from Internet. Pete Siemsen <siemsen@barnard.usc.xedu> noted slight error in libexpect man page. 12/10/91 3.11.1 A couple tiny mods to the Makefile courtesy of James B. Davis and Michael Grant (guest worker from Sun, temporarily at <mgrant@xdr.ncsl.nist.xgov>. Both of them also noted a problem caused by incorrect installation of gcc that caused expect to say "ioctl(set): Invalid something or other" upon exit. Fixed complaint about exit() while compiling without STDC. 12/9/91 3.11.0 beta! Hal Peterson provided fixes for UNICOS 6.1 and 7.0 on both CRAY-2 and CRAY Y-MP. He also fixed a problem in interact where malloc(0) could've occurred. Added support for allowing user to set interpreter prompt. Added forgotten -d flag to match_max in rftp script. Made kibitz understand user@host. Expect's internal buffer-full-handling incorrectly copied the latter buffer half beginning from the end of the buffer. 12/5/91 3.10.1 Massaged Makefile to allow for more flexibility in installation, especially with regards to scripts. #! is now reset. Added "kibitz", a really cute script to let two people control one program. Example users are for one person to help another remotely, logging a conversation (run emacs or whatever inside kibitz and your conversation can be logged, scrolled backwards, etc., or of course, playing games together. 12/4/91 3.10.0 Tightened up arg checking for "wait" - it core dumped when it should've said "syntax error". Rick Cady <rickc@nsd.3com.xcom> noted minor inconsistency in man page describing strace. I fixed a bug that prevented "system stty -echo raw" from working. The raw data was clobbering the -echo data. 12/3/91 3.9.0 Brian Woodson noted that "close -i ..." evoked a syntax error. I had parsed the arguments incorrectly. After the nth request, I finally set up pub/expect/scripts as a directory for scripts. 12/2/91 3.8.0 Phil Sheperd <pshepher@loki.uni.edu.xau> fixed a major bug in exp_spawnv() preventing one side of the pty from being set up correctly. Thus nothing worked! He also reported that his system didn't have strdup, so I added an explicit defn of it. James B. Davis fixed a couple nroff-bugs on the man page, and said someone already gave him a dump script (see below). Richard (R.C.) Vieregge <richv@bnr.xca> found a $ was missing from test/ftp.exp. 11/22/91 3.7.2 James B. Davis <james@solbourne.xcom> straightened out a couple things in the Makefile and asked if anyone had written a script for dump. Jeff Okamoto <okamoto@hpcc25.corp.hp.xcom> had a couple changes for HPUX 7 and 8 compat, involving termio stuff. Prompted by Andy Norman, added note to man page describing how to disable all argv processing while using #!. Converted passmass and rftp over to new version. 11/15/91 3.7.1 Brian Woodson asked me about the Tcl_WaitPids "got unknown process" panic. This is a Tcl bug that John has promised to fix. I'll document how to avoid it in the man page. Incidentally, I'm going under the knife tomorrow for three torn cartilage in my wrist. The doctors say it may be a couple days to couple months. Until I get back, hang in there. 11/13/91 3.7.0 Yet another bug discovered (and fixed). "expect eof" was failing to remember the buffer, and expect_out(buffer) was empty upon return. Brian Woodson noted I forgot to document the -i flag of close. 11/12/91 3.6.0 Sean Cunningham <sean@moorenet.xcom> reported that he couldn't open /dev/tty from 'at'. 'spawn' was incorrectly not executing code to claim it was a controlling tty. BSD only. 11/11/91 3.5.1 Brian Woodson notes that version 2 and 3 treat the following differently. proc p {} {spawn s}; expect In v3, spawn_id is locallized by the proc, and thrown away when p returns. Unfortunately, in v2 due to some sloppy coding on my part, spawn always affected the global value of spawn_id. This differed from the handling of other variables, and in v3, this unusual behavior had to go, because the multiprocess handling and the large number of variables implicitly set (especially by the expect command) demanded that I be more systematic about how this was done. Since I never depended on this behavior, I never documented it as being something you should rely upon. Alas. To fix it, add the line global spawn_id to the beginning of any proc that calls spawn and needs the value of spawn_id implicitly defined outside of the proc. 11/6/91 3.5.0 Drew Whitehouse <Drew.Whitehouse@anu.edu.xau> hit a bad pointer. I forgot an initialization in expect.c which caused problems when an EOF occurred which had no eof pattern. 11/2/91 3.4.0 Added FAQ from various questions people have sent me and my replies. Made CONVERTING file on converting from 2 to 3. Nelson H. F. Beebe <beebe@math.utah.xedu> found a missing declaration for exp_tty_original in bye() of main.c. How come the Sun C compiler doesn't complain about this!?!!? Nelson also reported that SunOS 4.0.3 had a problem including varargs. It turned out that old varargs had check for reinclusion, and tclInt.h also includes it. So I added an #ifdef va_dcl and put my inclusion after tclInt.h. 10/31/91 3.3.0 Converted most of the examples. Three more to go. Worked on man page some more. Modified expect so that if timeout > 0, and nothing in the buffer matched, it will force a read, no matter how long the preceding code took. This may be hard to understand, but is the intuitive behavior that I always desired. 10/30/91 3.2.0 Fixed bug in eof handling. Converted some more of the examples, and added to Makefile. 10/29/91 3.1.0 Fixed slight bugs in tty mode switching, pty initialization (via stty). Fixed expect library. Fixed compatibility code for non-BSD systems. As usual, I could only test it so far, not having all these systems at my disposal. I don't expect major problems though, since the basic functions I depend on haven't changed. Completely rewrote handling of continue, return, etc in expect, interact, interpreter. It's actually systematic now. Checked with John O. about some code to bounce wild return codes, which he said was a mistake and would remove, so now I can pass my own return codes different from Tcl's. To get | to return -> TCL_RETURN TCL_OK (no return) V expect return default continue -expect interact return -tcl return default interpreter return -tcl return default What this table says is, to get "interpreter" (for example) to return TCL_RETURN to its caller, you must say "return -tcl", because "return" makes it return TCL_OK. The "argumented" versions are considered to be the uncommon form. In particular, I'd be surprised if anyone ever uses the -tcl argument, but it's there for completeness and consistency now. Put together a FAQ. Needs more work, but hopefully worthwhile as is. Computing Systems with Expect article appeared a couple days ago. How ironic that it describes the old version of Expect. Nonetheless, it looks ok. 10/25/91 3.0.0 alpha! First release of Tcl-6.0-ready code. It might fly for a couple seconds. Here is a quick list of changes. Besides Tcl incompatibilities, Expect incompatibilities are flagged below as: ** major - scripts definitely won't run if they depend on this * minor - scripts probably will run but there is some subtle change that should be examined). ** Select renamed 'ready' and undocumented. Seems pointless now. Added support to expect command for waiting on patterns from different processes. The old version implemented this via 'select' but but it is much simpler via expect. Added -i to a number of commands to signify a spawn_id which overrides the variable. Added any_spawn_id to match any spawn_id. An explicit null pattern, forces a spawn_id to be considered when all it can possibly match are any_spawn_id patterns. * output is no longer flushed to expect_match upon timeout. May be multiple buffers now, so it doesn't make sense to flush just one.) -n was added to disable transfers from input buffer to expect_match var. I suspect it will only be used for experimentation. Added expect -re for regular expressions. Added expect_out array to retain indices and strings of partial matches for ** for both glob and re. expect_match has been renamed expect_out(buffer). A la Tcl, added -nocase for both types of patterns. (Oddly, Tcl's case only does it for regexps.) By popular demand, unanchored glob patterns. Old patterns will continue to work, since earlier interpretation was much stricter. Unfortunately, unanchored matches make certain user errors easier. For instance, people will send answers before seeing all of the question. Typically, output can 'look' ugly, as answers land in the middle of other things. To anchor patterns, use ^ in beginning and/or $ at end. Added expect_out(spawn_id) to report which spawn_id was read. Made expect and variants understand all args as one arg. Added 'default' pattern. Added continue_expect command. Added expect_before, expect_after commands which take same args as expect, but continue to stay in effect for all expects. ** Added match_max command, deleted it as a variable. The old way was too coarse for use over multiple spawn_ids. With no arg, returns current max. Takes -i flag and -d for default. Added globbing to spawn command. Added optional -i spawn_id to wait. Added optional -i to send (and all its variants). Renamed trace to 'strace' since it conflicts with Tcl's new trace command. Since 'trace' traces variables, I figured 'strace' wasn't too bad (for "statement trace"). I felt obliged to make it short and not as obliged to make it as meaningful since it will probably invariably be typed by hand. Made timeout == -1 mean infinity. Made interact do pattern matching in both directions via use of -o flag. Added -F flag for convenience. If -f or -F used, interact can no longer be overrun. In particular, if more characters arrive then match a pattern, remaining characters will be buffered rather than thrown away (old behavior). Patterns may now be substrings of one another. Made interact optionally take all args as one. Default action is now 'interpreter' (see below). interpreter now forces cooked mode, and echos results so you don't have to constantly say "send_user [...]\n" * Interact reads characters that have been buffered but not matched by expect. And vice versa. Does anyone care? (My rogue script did.) From discussion with John Conti, I decided to make 'interpreter' a separate command to start up interactive command processor. Changed default action in interact to this. Added eval depth and event id to prompt to interpreter. Added expect_library which contains path for commonly sourced expect scripts. Automatically source expect.rc out of expect_library unless -N given. Automatically source ~/.expect.rc unless -n given. Added expect_version command to print and/or verify script is compatible with running expect. Tcl version is also tested. Felt it was worth making this a command because it's such a pain to tear apart version strings. Tcl's close and exit are both subsumed by expect's commands of the same name. Rewrote mode switching code so that "system stty" is handled specially. This allows interact and interpret to get the modes they want, without burning the user. It is now much easier to leave expect in raw mode all the time, but the choice is up to the user. Added vgrindefs, courtesy of Brian Fitzgerald. 9/23/91 Tcl 6.0 released. This new Tcl has some incompatibilities with the old Tcl, so as long as everyone is changing their scripts already, I'm taking the opportunity to make some incompatible changes to Expect that I've wanted to do for a long time. 9/11/91 2.67 Ed Klein <eklein@syrinx.umd.xedu> added support for SVR4 in the form of pty_svr4.c and mods to command.c. Added explanation to man page of how to create unreadable but executable scripts. (No, chmod 111 doesn't work.) Mark Diekhans <markd@grizzly.XCOM> pointed out to me that there is a potential problem with the trap command: "There is no control over when the signal will cause Tcl_Eval to be executed. There is a chance that code in the Tcl library will be executing when the signal comes in and the interpreter data structure will be in an inconsistent state. This could cause all sorts of nasty things to happen. In our Extended Tcl (4.0) we added signal handling. but the way we implemented it was to have the signal handler set a global flag. We modified Tcl_Eval to check the flag after it finishs executing each command. If the signal came in, Tcl_Eval then returns an error such as: "SIGINT signal received". Signals may then be caught with the catch command and processed." 9/10/91 2.66 Don Jackson <Don.Jackson@Eng.Sun.XCOM> found a syntax error in the usage error message of the example ftp-rfc script. Marty Olevitch <marty%cosray@wuphys.wustl.xedu> provided mods to support MORE/bsd. Namely, added #include types.h to expect.c and extern int errno to a number of files. Scott Hess <scott@nic.gac.xedu> noted a potential problem in interact. Since interact only checks patterns at beginning of reads, user can conceivably type fast enough so that patterns are typed in the middle of a read. In reality this doesn't happen, but Scott was driving one expect with another expect and in this way provoked the behavior. The solution is to read chars one at a time, either by read(,,1) or buffering in a stdio-like way, but I'm not going to do that because the code should really be rewritten entirely and it just isn't worth it, since it is so easy to get around at the user level. Steve Legowik found that spawn-disconnect sequences fail. The pty testing I added in version 2.55 causes expect to regain the slave as a controlling tty, which generated SIGHUPs. If anyone knows a clean way to avoid regain controlling ttys, let me know. For now, I just set SIGHUP to SIG_IGN in the disconnect command. 8/14/91 2.65 Old passmass script changed root password. I renamed it to passmass.old, and made a new one which works for any account. It also supports yppasswd, telnet/rlogin, different names for accounts on different machines. Handles VMS machines, too. Added Computing Systems paper to expect distribution and moved all expect-related things to separate expect directory in our ftp directory. 8/5/91 2.64 Achille Petrilli <achille@miss.cern.xch> found that on an SGI, the expect command ocassionally returned "no more processes". He traced the problem back to O_NDELAY in the open, which was taken as-is from the man page, by someone else who's code I didn't look at too closely at the time. The result works now. Oddly I thought I fixed this error myself when the SGI support was first installed, but I cannot find it. I evidentally screwed up. 7/31/91 2.63 Steve Legowik <legowik@cme.nist.xgov> wanted to implement callback by having a modem dial out and NOT go away, but interact in the reverse direction. I added "interact -u" to support the idea of changing the user from the default stdio to a second spawned process. The result is that we can now write a modem callback program that doesn't depend on the cute trick of having getty recognize DTR which only worked when the modem was directly connected to the computer. In Steve's case, there were several network switches in the way. Added "overlay" function which is similar to plain "exec" in shell. (Too bad Tcl took the name already.) Added robohunt scripts to the test directory. I wrote these back in January, '91 and forgot about them til now. But I suppose they are illustrative (at the very least of how to generate truly random numbers). Ha. 7/20/91 2.62 Carl Witty <cwitty@jessica.stanford.xedu> pointed out my fdset implementation (for systems that don't have it) wasted some space. I had commented it correctly, however, making the incorrect code obvious (except to me). Robert Howland <howland@rahjr.ame.nd.xedu> pointed out that expect complained about not running from a real terminal under cron. Oops! So I added a test to skip saving/restoring terminal modes when fd 0 is not a tty, since this is obviously pointless. 7/19/91 2.61 Oops. Forgot to include getline and getline.exp examples even though they have been documented! 7/17/91 2.60 UMich changed interface to weather system necessitating change to weather script. 7/9/91 2.59 Didn't correctly comment things right in Makefile. Fixed. Changed 'close' in gethostbyaddr example to 'catch close'. 6/22/91 2.58 Made new file (pty_sgi.c) for supporting Silicon Graphics ptys. Silicon Graphics select fails to see eof immediately but poll works ok. Unfortunately, there was an error in inter_poll (bad_io was uninitialized). Silicon Graphics works now. Andy Norman <ange@hplb.hpl.hp.xcom> notes that linking expect with the BSD compatibility library under HP-UX, libc.a must be loaded before libBSD.a. Modified Makefile to reflect this. He notes that there is a problem with expect not reading an EOF from the current process. This should go away with HP-UX 8.0 when select has been enhanced to flag exceptions in the readfds argument. Probably inter_poll would work. Edward Haines <haines@bbn.xcom> notes that close returns EPERM ("Not owner") on his Sun 4.0.3. This is rather startling! (That's what I get for checking the return value of close!) He said it is possible that they have modified things (viz. DDN X.25 is loaded), but it still sounds incredible. For now, I told him to either "catch" all closes or to remove the check in the source code. Added example scripts: ftp-rfc retrieves an RFC from uunet via ftp. archie mails back a listing from the archie server. Add the rest of Hal Peterson's changes for Cray support, 1) fixing a problem where spawned processes flushed unread I/O upon process exit, and 2) creating processes with the correct uid. See his comments in command.c for more info. 6/6/91 2.57 (On Cray) made signal handler declarations right. Added missing #endif. Added includes to pty_unicos.c. Fixed bug in two bugs in CmdSend, one involving send_stderr, the other send_user. All of these are from Hal Peterson. Added gethostbyaddr as example script. Given an internet address, it returns the domain name. By querying neighboring hosts if the name server fails, a much higher probability of returning the name is obtained. 5/30/91 2.56 Mispelled "match_max" as "max_match" in rftp script. This caused files after the 2000 byte mark (per directory) to be skipped. 5/21/91 2.55 Revisited BSD pty code to reject ptys that have either slave or master side already open. This fixes problems rare problems such as expect not being able to see EOFs from the child proc. (because another process still has the pty slave side open). USG and Cray pty code could probably use this code, too. Fixed bug in expect library (lib_exp.c) which caused output to be copied to stderr instead of logfile when logfile_all was set. Per Sreedhar Muppala <muppalla@nssdca.gsfc.nasa.xgov>. 5/16/91 2.54 Fixed weather script to accomodate occasional Weather Watch that would cause an unexpected initial question to pop up. 5/15/91 2.53 Added comment to BUG section of man page describing pty misbehavior with non-interactive programs (search for "553061" below), as per Hal Peterson <hrp@cray.xcom>. Removed note from README about asking Ousterhout for SV TCL at his request. 5/11/91 2.52 Fixed a syntax error that Bruce Larson <ires@kaspar.ires.xcom> found in inter_poll.c 4/23/91 Computing Systems accepted paper on Expect for issue 4.2. 4/18/91 2.51 Added some example scripts: weather - retrieves weather forecasts from National Weather Service via University of Michigan server. rftp - ftp a directory hierarchy (i.e., recursively). 4/18/91 2.50 Changed timeout to apply to total time in expect rather than per read(). Original behavior hung forever when my modem test script started listening to a modem than spit out 1 spurious character every 10 seconds (very consistently). Hal Peterson <hrp@pecan.cray.xcom> noted that exp_spawnv's args didn't match documentation. Fixed in favor of documentation. Several other funcs don't match header file (but typechecking is avoided during compilation), because it was too hard for me to make the header file ANSI compliant and support varargs (which is undeniably more portable than stdargs at this point). Fixed prototype declarations (again) in expect.h for C++ and Standard C. Verified with GNU, G++ and Sun C (proto-less). Added exp_disconnect to library. Moved alarm calls closer to read() to tighten windows. 4/11/91 2.49 Changed passmass script to use timeout of 1000000 instead of 10000000000 after discovering that Ultrix sleep(3) doesn't sleep at all for large values! Added support for systems without dup2 (SVR2) per <elston@edwards-tems.af.xmil>. Added test/Makefile to shar as per Chris Pribe <cpribe@park.bu.xedu>. 4/4/91 2.48 Fixed possible problem with poll in inter_poll.c for systems that check for a valid address even though no members are used. 3/27/91 2.47 Added support for Cray Unicos 6.0, which of course is different from Unicos 5.1 (which was different from everything else)! This and other minor bugs fixed courtesy of Pete Termaat. 3/19/91 2.46 Removed a "feature" which caused patterns with no whitespace not to be run through SplitList. While not documented not to do so, this was mystifying even to me when I saw it. For William Waite. The result actually simplified the internal handling of multiple patterns, removing some excessively complex logic that I thought would be helpful for speed, but that in retrospect, was not that important. 3/16/91 2.45 Added my own definition of FD_SET, fd_set, etc, test for SIGABRT, and support different types of signal arg func definitions to support SunOS 3.5 as requested by William Waite <waite@scotty.colorado.xedu>. 3/14/91 2.44 Removed redundant def'n of pty_stty in pty_usg.c, redef of sprintf and added signal.h to command.c to make compiles cleaner on SV3 and HPUX machines. All compliments of Mike Gourlay. 3/10/91 2.43 Added -s (for slow) and -h (for human) flags to send. This had been requested by several people including Frank Terhaar- Yonkers (who actually wrote and tested a "send_slow" command), and Steve Simmons who suggested the "human" option (over a year ago), and Brian Woodson (brianw@swqa-sun.ESD.3com.com), who requested both! Thanks to NIST statistician, Keith Eberhardt, who taught me about the Weibull Distribution. According to Jim Thomas <jthomas@nmsu.xedu>, 3b2 requires defines for R_OK and W_OK. Added to pty_usg.c. Added support for "-" as file name on command line to mean stdin as requested by Steve Clark <clark@cme.nist.xgov>. Wrote passmass (change root password on a set of machines) as requested by Ken Manheimer <klm@cme.nist.xgov>. Added to test directory. 2/21/91 2.42 Removed reinstallation of signal 0 in signal handler. Added hook for setting initial pty parameters when started in the background. Should've done this a long time ago, but I was never really happy with my solution and had hoped I would think of a nicer method. I only hope this is clean enough. 2/10/91 2.41 Added buffer_full keyword to solve Brian Fitzgerald's problem. It disables "forgetfullness" so that when expect's internal buffer hits match_max, whatever it has returns at that point. Didn't add this to the library version, because I want to think for awhile about the cleanest way to do it. 2/4/91 2.40 Per Brian Fitzgerald (fitz@mml0.meche.rpi.edu), fixed error in interact example on man page which incorrectly implied that "kill" was built-in. Added fork/disconnect functions. This solved the problem of Jerry Friesen (jafries@snll-arpagw.llnl.gov) who wanted to run an expect script that asks for a password and then goes to sleep for awhile before waking up to run in the background (to run a program using Kerberos). 1/30/91 2.39 Per Jim Johnson (jaj@mlb.semi.harris.com), added declaration and documentation for exp_pid in libexpect. 1/10/91 2.38 More mods from Frank Terhaar-Yonkers. Also, some requests from Pete TerMaat (pete@willow.cray.com) for features: 1) a single-step facility. Yeah, that would be nice. No ideas on how to do this easily. 2) Generate scripts automatically after watching a session. This is hard. Read more about this in the FAQ. 1/10/91 2.37 Added support for Cray Unicos 5.1, all courtesy of Frank Terhaar-Yonkers (fty@sunvis.rtpnc.epa.gov). Most of it had to do with pty support. 1/8/91 2.36 Modified expect.h to support C++ and ANSI prototypes. Added appropriate example in test directory based on chesslib.c. 1/7/91 2.35 At the request of Jan Norden (jano@imdpy1.im.se) added NO_MEMCPY and NO_STRING_H defines for Pyramid. 1/3/91 2.34 Added a check to protect against a longjmp occurring between i_read and alarm(0). Didn't think this would be a problem but evidentally a function return modifies the stack, so it cannot be returned to again. Drat! This appeared in the robohunt script I wrote which plays hunt automatically and uses 1 second timeouts. 12/19/90 2.33 Add signal to sighandler, to reinstall signal for those systems that need it. 12/12/90 2.32 Removed test for args to expect. I only recently realized that no args still allows a valid way to check for timeout and eof! 12/6/90 2.30-1 Mike Gourlay (mike@penguin.gatech.edu) found and fixed quite a few SV-related problems that I had introduced since Clem's fixes. We eventually got it to run on his HPUX machine, a mixed breed of BSD/USG stuff. But spawning a shell worked but always produced a complaint about "no access to tty" which we were never able to get rid of, and he had a problem with exp_fexpect (but not exp_expect), although it still isn't clear if that was expect's fault. He said he would speak to some HP engineers about what he found. 12/5/90 2.29 Fixed a malloc off-by-one bug in new C library. After contemplation, revised interfaces. Decided that rather than following the original 'expect' style, it should be more like what a C programmer is used to, so I made the file descriptors be parameters to exp_expect rather than globals, added an exp_popen which is a popen equivalent, and added exp_fexpect versions which are stream equivalents. Am not happy with exp_fexpect. It is much less efficient than exp_expect, because there is no way to (portably) get fread() to return the way read() does, with less then the number of characters you supplied a buffer for. Instead, I have to call fgetc for every char. Ugh. Add a couple new examples, including lpunlock, time.exp, chesslib.c (using file descriptors) and chesslib2.c (which uses stream pointers). 12/3/90 2.28 Created C library version of expect. 11/29/90 2.27 Fixed bug in interact - when no string actions were defined, the mapping table length wasn't set at all. Made interact call printify when debugging so that crlf and other nonprintables are visible. Fixed bug in printify which interpreted some characters wrong due to parity. Added some more examples to the distribution (lpunlock, dvorak, timed_read) and put in another tip in the TCL HINTS section of the man page. 11/18/90 2.26 Fixed mismatched comment per Craig Warren (ccw@deakin.oz.xau). Also improved man page entry for "interact". 11/17/90 2.25 Added -f (fast) on interact options, and made default case a little more efficient. Added explicit support for SIG_IGN and SIG_DFL in trap command. Added ability to specify signals symbolically for portability. 11/15/90 2.24 Craig Warren (ccw@deakin.oz.xau) wanted to exit expect while in interact with a single character. Dan Bernstein (brnstnd@kramden.acf.nyu.edu) wanted to suspend with a single character. So I generalized interact's escape character to string-action pairs. 11/7/90 2.23 Tired of getting reports that various (Ultrix 3.1, BSD4.3) C compilers can't handle ternary conditionals returning ptr to func returning void. Made all (2) such statements into if-then-elses. Per Steve Simmons (scs@iti.org). 10/8/90 2.22 Allow "log_file" even when no log is open. This makes user programming a little simpler - they don't have to remember whether they opened the log or not. 9/27/90 2.21 Fixed bug, v2.19 introduced. debuglog(unknown string) requires a "%s" as formatting for protection against %'s in the unknown string. 9/17/90 2.20 4 syntax errors in interact_poll.c, vik@sequent.com. Added quotes to all the sends (now that this is more efficient) in the examples and man pages. Also removed a misstatement in the man page about the behavior of double quotes. 9/15/90 2.19 Removed buffering from send command. Originally, I buffered the args, so I could do it all in one write. But to send variables bigger than the buffer didn't work. I didn't think about this before. But Joe Gorman (Joe.Gorman@elab-runit.sintef.xno) asked me if you could "send" a file in one command, and of course you can using [exec cat] as the argument to send, but the buffering prevented big files from being sent. Anyway, now it works. 9/14/90 Fixed the declarations of nflog and nferrlog. Added a #define so lack of pid_t could be controlled from the Makefile. Per Andy Holyer (and@ux.rfhsm.lon.ac.uk) 9/4/90 2.18 Added trap command to catch signals. This is nice as (among other things) it allows you to turn off the conversion of ^C to timeout which was requested by John Conti <jconti@cisco.xcom>. 8/21/90 2.17 Fixed bug in printify. Forgot to reset ptr to beginning of print buffer. Made debugging info wrong. Possibly screwing up other things on overflow. Paper accepted into USENIX LISA! 8/15/90 Cleaned up man page. Made tabs line things up correctly, finally. Found another problem with ptys (at least under SunOS 4.1 and earlier). When last pty-slave fd closed, any unread output is lost after a short window of time (around 10 seconds on a Sun 3/60). Sent example ptybug.c to Sun demonstrating this and EIO problem found earlier. (Service Order #553061) 8/6/90 2.16 Added -f to debug command, -a to log_file command. This required significant changes, including revisiting all the logging routines, plus miscellaneous output done in special places. Noted that it cannot be done with getopt, since it could be called during main's getopt, and getopt is not reentrant! (Guess how I discovered this!!) I'm not particularly happy with the design, but maybe others won't be. In any case, I like the benefit of it and am now glad that -a was asked for. Per Harry Bochner and Ira Fuchs (fuchs@pucc.bitnet). Changed behavior of argv, so that 0 == [length $argv] when no script/args supplied. 8/4/90 2.15 Added debug command, so -d-ness could be changed while expect is running. 7/20/90 2.14 Fixed small bug in -d output from expect, which printed ^Z as ^: 7/18/90 2.13 Added wait command. A waitpid/waitspawnid would be nice and cleaner, too, but since csh doesn't need it, it is probably not worth much. Consequently, removed SIGCHLD handling from command.c. It worked under SV but not BSD. By forcing users to explicitly code waits, resulting scripts are more portable. Rewrote rogue example. rogue sometimes misses EOF (generated by close on our side) and continues reading. 7/16/90 2.12 Removed buffering from variadic log routines. This was faulting when the buffers overflowed. Cleaned up the -d output from expect, so it is much more readable. For example, control characters are now visible. 7/14/90 2.11 Added declaration for errno, to support 4.3BSD. Per Alan Crosswell. Added -i flag and related behavior. 7/12/90 2.10 Fixed bug where timeout = 0 waited forever rather than not waiting at all. 7/11/90 Fixed man page example which didn't include the blank on the end of an ftp prompt. 7/9/90 2.9 Fixed bug in send when spawn_id = $user_spawn_id. 6/27/90 2.8 Integrated some mods from clem cole (clemc@ccc.com) to support System V.3 (386/ix Version 2.02). Unfortunately, he didn't do "select". 6/25/90 2.7 Test that cmdfile and logfile are open before fclosing in child while spawning. Per Corey Satten <corey@cac.washington.xedu> 6/24/90 2.6 Pty master returns EIO instead of EOF when pty slave closes. Bug in pty driver? Until I figure this out, I have put in code to interpret EIO to EOF. 6/21/90 Added new section to expect man page - Tcl hints. 6/14/90 Spoke at USENIX. Went well. Added USENIX paper as separate ftp archive. 6/4/90 2.5 Fixed bug in ^C catching during expect. Changed man page to accurately describe what ^C does. Fixed bug that caused "send" to screw up when handed 0 arguments. All per Harry Bochner. 6/1/90 2.4 Made trailing empty action in expect optional, primarily to make straightline code easier to read. 5/15/90 2.3 Changed expect to strip nulls from program output since there is no way for Tcl to handle them, per Harry Bochner. 5/5/90 Added "send_error" command. 4/26/90 Got USENIX paper back from Kolstad to proof. Am depressed at how awfully they formatted it. 4/25/90 2.2 Eric Newton found that expect's special variables weren't being found inside of user subroutines. Had to do with new Tcl, which now differentiates between variables that are undefined vs. empty. 4/24/90 Upgraded Tcl from 2.1 to 3.3. 4/22/90 Added special behaviors of ^C in expect, and when profiling. Profiled rogue (at urging of Ousterhout). 4/10/90 2.1 Added select command. Added support for user_spawn_id so that you could treat user just like another process (i.e. with send and expect). Decided to leave send_user/expect, since scripts are more readable with them. 4/2/90 2.0 Changed syntax of expect to provide alternatives (a la Tcl case), per suggestion of John Ousterhout. Note that this breaks pre-2.0 scripts. 3/31/90 Got great comments from Ousterhout. (This time he said that he really liked the idea. Maybe he realizes how much it will promote Tcl!) 3/30/90 Got comments from dpk. Made me think more about Perl. 3/28/90 Evi said I should turn the paper in unformatted and they will format it. (She's kidding, I hope.) 3/27/90 1.8 Rewrote interface so that raw arguments can be passed in like a shell. I'd been thinking about this for some time, but Eric Newton finally prodded me into action. 3/25/90 Got first corrections for paper - from Sue Mulroney! 3/24/90 Observed that it is possible to use the #! syntax with expect. I asked John O. about this (his choice of # as a comment character), and he said it was pure coincidence. Deprecated request to end scripts in ".exp". Ted Hopp volunteered to be my Center WERB reader. 3/23/90 Finished 1st draft of USENIX paper and sent copies to John Ousterhout and panel chair, dpk@morgan.com. 3/20/90 1.7 Deprecated "stty", and added more general "system" command. Sent Evi some complaints about the business of not allowing camera-ready at USENIX. 3/17/90 Sent copies of man page to Doug Gwyn and Larry Wall for comments. Note that gwyn downloaded it. 3/16/90 Am really irritated by USENIX. My paper has been put in a session against another session, the BSD people. Furthermore, they called my paper an application, when it is no more so than any other shell or language. Better I should be in "lessons learned". But it was too late to change the schedule. On top of that, our session has four people in it, so I'll have very little time to speak. Grrrr. 3/13/90 1.6 Added "stty", because without it you can't do things like turning off echo to accept a password. 3/8/90 1.5 Abstract was accepted into USENIX!!!! Time to start writing it! Sent man page to Ousterhout. He didn't seem too impressed. Added "send_user/expect_user" after listening to Ken complain about how shell could not do timed reads. Actually it can, but expect does it much more naturally. Deprecated echo. Now, I realize that expect can be viewed as a shell! Changed logfile/loguser to log_file/log_user to match all the variables with underscores in them. Barry Warsaw asked if there was any way one could execute any command from interact (apparently without any reason in mind). Nonetheless, it is a wonderful idea, and I changed the "abort character" in interact to an "escape mechanism". After escaping, you may execute any command. return duplicates the old action of the abort character. Now you can do interactive job control, recursive interacts, etc. You can bet I didn't get this right the first time! At Scott's request, fixed bug related to pty initializing. Scott was putting expect in the background which disassociated it from a tty, and I was blindly copying the tty parameters without checking to see if they were meaningful or not. Tightened up exit code. Fixed bug in spawn so it would print error messages when it failed. Spawn sends back the error message in the pty, if the fork succeeds but exec fails. Cute! Added "close" command. Makes scripts much shorter and cleaner. Return string matched by expect directly, rather than setting a special variable. Added "match_max" feature. Probably no one will ever use it. Added trace command. 3/6/90 1.4 Rob Densock was the second user, and suggested (demanded?) the idea of the loguser command. I added it and changed "log" to "logfile" making the first incompatibility with existing scripts (sorry, Steve). 3/1/90 1.3 Trying to make pty code more robust. Many questions unanswered by manuals. Did a lot of guessing. While debugging, looked through pty code in gnuemacs to see if I might increase portability somehow. Found lots of funky ifdefs on weird ioctls. Found lots of comments like "this might work". 2/28/90 Sent a short Tcl bug list to John Ousterhout. He thanked me! 2/22-3/90 1.2 Hooked my first user, Steve Ray. Surprisingly, he only found one bug in the code (exit didn't handle args correctly), but it was obvious that I need to put more explanation in the man page. Many of the examples in the man page are based upon his probl.. questions. Thanks, Steve! 2/20/90 Posted news about expect to "general" newsgroup locally. 2/15-20/90 Talked to local POSIX reps and then to Steve Albert (AT&T) about portability of select, wait and other system calls. I'm not impressed by 1003.1. 2/9/90 John Ousterhout answered some questions I had about Tcl syntax. I like this language! 2/8/90 1.1 Sandy Ressler suggested the idea of being able to spawn multiple programs at the same time although he didn't say how. It took about a day to design and code the spawn_id hook. Extremely difficult to support this with uucp-style kludge. Switched to using select. So much for portability. I investigated how to do this portably, and spent some time talking to NIST & AT&T POSIX representatives. Unfortunately, portability (especially when it comes to select()) remains a dream. Provided multiple versions of "interact" depending upon what OS you are running. 2/7/90 1.0 Completed first cut of "sex" (for "Smart EXec" or "Send/EXpect"). Supports send, expect, echo, log, spawn, interact. Spent a lot of time making "log" write to log in just the right order (across fork and while debug flag enabled). Ended up writing a bunch of variadic log routines. Fooled around with uucp-style multiple processes versus one process doing select() to read asynchronously. Using uucp-style for now, since it is more portable. Gave up on pipes, and switched to ptys. Pipes seem to be messed up by ftp, perhaps because it goes into raw mode? Ptys are more efficient and cleaner to program albeit less well-documented and portable from system to system. Ken Manheimer helped me explain what the program does. I kept saying it does "send/expect" processing, and he kept insisting that was meaningless to everyone. (In fact, it comes from uucp, and I guess uucp hackers are indeed a dying breed.) Ken gave me an elegant enough sentence that I expanded it into an abstract and sent it in to the USENIX conference the following day (two days after the deadline). I noted that the uucp documentation I referenced in the submission is dated October 31, 1978! 1/30/90 0.0 Got a copy of Tcl and went to work. Tcl was exactly what I need. Plus, it is easy to use, AND it is documented. 1/25/90 Attended Winter 1990 USENIX in DC, with the goal of banging heads with some other gurus in hopes of finding a good send/expect language for a generalized stelnet. Had looked at uucp and kermit but found nothing general enough. Listened to John Ousterhout's presentation on Tcl. By the middle of the talk, I had found religion. At the end when he said it was public-domain, I was ready to swoon. */*/88-89 Spent a lot of time telling Scott how useful his program could be if he made it more general. I thought it wouldn't be that difficult to make more generic. Scott was interested but not enough to do it. 9/25/87 Helped Scott Paisley write a program called stelnet, that forked a telnet and did very simple send/expect processing. It used pipes, not ptys. It had no pattern matching, and only straight-line control without error handling. Nonetheless, this got me to thinking about making stelnet more generic.
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