ckc197.txt

C-Kermit源码。是使用串口/Modem和网络通讯的程序

makefile, ckuins.doc, 14 Aug 97.

Straightened out the aforementioned mess with the modemp[] array.  Now that
wasn't so hard, was it?  ckudia.c, ckuus[34].c, ckuusr.h, 14 Aug 97.

Changed mainline binary variable when switching automatically from text to
binary mode in VMS C-Kermit -- cosmetic only; should only affect the
file-transfer display.  ckvfio.c, 14 Aug 97.

Changed SET EDITOR and SET BROWSER in VMS to parse text strings rather than
filenames.  It turns out that zshcmd() (in VMS, a front end for LIB$SPAWN())
can not run programs when given a filespec; it runs DCL commands, period --
always has -- did I know that?  ckuus3.c, ckermit2.upd, 14 Aug 97.

Added support for USR XJ1560 X2 56K modem.  ckuusr.h, ckudia.c, 14 Aug 97.

Changed keyword parser to skip over CM_INV keywords when completing an
abbreviation.  ckucmd.c, 14 Aug 97.

Fixed some typos from yesterday's SCO work.  ckutio.c, 15 Aug 97.

Discovered that "remote host xxx" followed by "get" did not work.  This was
yet another case of the i_isopen flag not being set (this time in syscmd()).
I'm wondering now what the original idea was behind these stupid flags -- oh
yeah, I remember -- calling fstats() would have the side effect of writing a
misleading transaction log entry if the file had never been opened.  Anyway,
all fixed now.  ckcfn[s3].c, 16 Aug 97.

Fix from Jeff for tn_ini() -- make sure *all* Telnet protocol flags are
reset.  ckcnet.c, 17 Aug 97.

Miscellaneous minor corrections from compiling on many platforms.
ckuusr.c, ..., 17 Aug 97.

---Alpha.04---

Changed USR X2 max speed to 115200.  ckudia.c, 18 Aug 97.

Some tentative changes for Apollo SR10.  ckuusx.c, ckuver.h, 18 Aug 97.

Some of the cmfld()-parsing SEND (etc) switches were not stripping braces.
ckuusr.c, ckuus6.c, 19 Aug 97.

Console modes were not being twiddled in the EDIT and BROWSE commands, which
affected VMS (some editors would not echo when started).  ckuusr.c, 19 aug 97.

Fixed a problem in which REMOTE HELP failed, caused by a rearrangement of the
code in opent() which, if it succeeded, it did not set a return value, so its
return value was random (i.e. system-dependent).  Now why didn't all those
strict ANSI compilers notice?  ckcfn3.c, 19 Aug 97.

The client end of REMOTE RENAME and REMOTE COPY have been broken since 6.0
came out -- nobody noticed till just now.  The code that was added to parse
redirectors wiped out the second field.  ckuus7.c, 20 Aug 97.

Fixed broken RECEIVE XXX for XMODEM transfers and assorted other parsing
problems in doxget().  ckuus6.c, 23 Aug 97.

Added CONNECT command switches:

 /QUIETLY              All but K95    (n/a)
 /IDLE-LIMIT:int       K95 only       int    tt_idlesnd_tmo;
 /IDLE-STRING:string   K95 only       char * tt_idlesnd_str;
 /TIME-LIMIT:int       K95 only       int    tt_timelimit;
 /TRIGGER:string       K95 only       char * tt_trigger_str;

Like file-transfer switches, these are local to the specific CONNECT command,
overriding, but saving and restoring, the global session-limit and other
corresponding settings.  /QUIETLY was already there, and it's still the only
one that non-K95 users will see; session limits, etc, are implemented only
in K95.  ckuusr.[ch], 23 Aug 97.

Added partial completion of keywords.  ckuusr.h, ckucmd.c, ckcmai.c,
23 Aug 97.

Corrected a couple minor problems with partial completion and CONNECT
switch parsing.  ckuusr.c, ckucmd.c, 24 Aug 97.

Discovered that if you typed Esc when entering a field parsed by chained
fdb's, nothing happened if the field had no default value -- in fact it should
have beeped.  Fixed in ckucmd.c, 24 Aug 97.

Changed VMS zhome() to use SYS$LOGIN rather than HOME.  This is to avoid the
problem that occurred when using getenv(HOME) as a default for CD, and that
directory was defined as a search path -- e.g. SYS$SYSROOT:[SYSMGR] on a
cluster, where SYS$SYSROOT: was a list of disks, namely that you can't SET
DEFAULT to a search list.  Reportedly using SYS$LOGIN: avoids this problem
and seems to work OK otherwise.  ckuus5.c, 24 Aug 97.

Spent a few hours trying to get the IRIX 6.2 version to compile with POSIX
defined (same deal as for SCO 5.0.4), but could not find a way to make it
execute the definitions & declarations for struct timeval and the select()
related ones.  I finally gave up when I discovered that the IRIX 6.2 system
I was using for this didn't have the high serial speeds defined in any of its
header files anyway.  25 Aug 97.

Added /TRIGGER:string to UNIX CONNECT module.  ckucon.c, 26 Aug 97.

Added SET TERMINAL TRIGGER to set global trigger, which can be overridden by
local switch.  ckuus[s7].c, ckuusr.h, 26 Aug 97.

Expanded trigger feature to allow up to 8 triggers, using the same notation as
SEND /EXCEPT.  Changed makexcept() into makelist(), so it can be used to parse
any {{s1}{s2}...{sn}} string into a list of pointers to s1, s2, ..., sn.
Moved autoexitchk() to ckuusx.c, since it is portable and can be shared by all
CONNECT modules.  Added \v(trigger) to give the value of the trigger that was
selected.  Added SHOW TRIGGER to display current SET TERM TRIGGER values.
ckcdeb.h, ckuusr.[ch], ckuus[2457x].c, ckucon.c, ckermit2.upd, 27 Aug 97.

Changed CONNECT to always reset triggerval (i.e. \v(trigger)) before going
online, so that \v(trigger) refers only to the most recent CONNECT command.
ckuusr.c, ckermit2.upd, 28 Aug 97.

Added trigger support to VMS version.  Plus one last attempt at making VMS
version not lose "NO CARRIER" message.  ckvcon.c, 1 Sep 97.

Added trigger support to AOS/VS version.  ckdcon.c, 1 Sep 97.

Renamed warn variable to ckwarn to avoid conflict in BSDI 3.0.  Also added
support for high serial speeds in BSDI 2.0 and later (including a new makefile
entry).  Many modules, 1 Sep 97.

---Alpha.05---

Changed VMS zhome() (again), this time from getenv("SYS$LOGIN") to
simply "SYS$LOGIN:".  ckvfio.c, 2 Sep 97.

Still doesn't work -- now we try it without the colon (but only as the default
for "cd", since we need the colon in other contexts).  ckuus5.c, 4 Sep 97.

Previous, cont'd...  Turns out Alpha VMS 6.2 chdir() doesn't work.  Got code
from William Bader to use sys$setddir() instead.  Works OK, but (OF COURSE
there's a BUT) it applies to the whole job and not to just the Kermit process,
so when Kermit exits, the user's default directory has changed to whatever
Kermit last CD'd to.

Rework sending of A-packets so that multiple A-packets can be sent in case all
the attributes won't fit into a single packet:
 . Added an initialize flag parameter to sattr().
 . Changed sattr() to return a positive number if it sent an A packet,
   0 if it didn't have anything to send, or -1 on error.
 . Added a new util routine, maxdata(), to return size of data field, shared
   by sattr() and getpkt().
 . Recoded sattr() to fill data field with as many attributes as will
   fit, marking each one as done, and returning when it can't fit any more,
   or there are no more left, or no more that can fit even by themselves, and
   to send the "end of attributes" attribute only after all attributes that
   could possibly have been sent, were sent, provided at least one was sent.
 . Changed the protocol engine to keep calling sattr() until it says it has
   nothing left to send.
ckcker.h, ckcpro.w, ckcfn3.c, 6 Sep 97.

Changed rpar() to not send I or S packets (or their ACKs) that are longer than
what the other Kermit asked for, again calling the new maxdata() function to
find out the length.  The parts that are chopped off from the end have their
corresponding settings defaulted automatically, overriding whatever the user
might have asked for.  ckcfns.c, 6 Sep 97.

What about F packets in this context? -- if a filename is too long, it is
simply truncated (in both the F/X packet and its ACK); there is no way in the
protocol to have continued file headers.  We could conceivably strip any
path info, but that would not always solve the problem, and anyway the user
can control this with a command.

Added a new system-dependent routine to ckutio.c: ttspdlist().  It returns a
list of speeds (as long ints) that are supported on the platform where
C-Kermit is being compiled.  Then in cmdini() we call this routine and build
our "set speed" keyword table on the fly when the program starts.  This
eliminates (just for UNIX at first) the prebuilt speed keyword table with all
the #ifdefs, and problems keeping the BPS_xxxx symbol definitions in sync with
the tt[sg]speed() routines in all the ck?tio.c modules.  ckcdeb.h, ckutio.c,
ckuus3.c, ckuus5.c, ckcplm.doc, ckccfg.doc, 7 Sep 97.

Added ttspdlist() for VMS.  ckvtio.c, ckcdeb.h, 7 Sep 97.

Added modem table entries for Rolm 244PC and 600 series.  ckuusr.h, ckudia.c,
10 Sep 97.

Added SET PRINTER PRINT command switches: /BIDIRECTIONAL, /DOS-DEVICE,
/FLOW-CONTROL, /OUTPUT-ONLY, /PARITY, /SEPARATOR, /SPEED, /TERMINATOR,
/TIMEOUT, /WINDOWS-QUEUE.  Only for K95 for now.
ckuusr.h, ckuus3.c, 10 Sep 97.

Made SHOW PRINTER show all these things.  ckuus5.c, 10 Sep 97.

Added SET PRINTER /PIPE:xxx.  ckuusr.h, ckuus3.c, 11 Sep 97.

Updated HELP SET PRINTER, ckuus2.c, 11 Sep 97.

Made another attempt at straightening out the CD mess in VMS.
ckv[ft]io.c, 12 Sep 97.

Added \v(startup) to UNIX and VMS, ckuus4.c, ckufio.c, 12 Sep 97.

Debugged VMS changes from 12 Sep.  ckvfio.c, 16 Sep 97.

Added a reference to SET EXIT to HELP EXIT.  ckuus2.c, 16 Sep 97.

Corrected various #ifdefs for building with various features deselected.
ckcpro.w, ckuus6.c, etc, 16 Sep 97.

---Alpha.06---

Put SET TERM { AUTOSCROLL, AUTOPAGE } in #ifdef OS2.  ckuus7.c, 17 Sep 97.

Put checks for and against modem signals, especially versus hardware flow
control, into the DIAL command, and also turned off hwfc during dialing
automatically for AT&T 19x0 modems.  ckuus6.c, 18 Sep 97.

IF condition keyword was completely out of alphabetical order.  ckuus6.c,
18 Sep 97.

"set host" to numeric IP address should not call gethostbyname() on any
platform; previously it did this except in Windows.  ckcnet.c, 20 Sep 97.

Fixes from Jeff to my fixes for RTS/CTS vs dialing from 2 days ago, ckcdeb.h,
ckudia.c, ckuus6.c, 20 Sep 97.  NOTE: The right way to do this is to add a new
sys-dependent ttdial() routine, to condition the device for dialing, which
does not overload the flow parameter; we'll do that later since it must
involve changing all the ck?tio.c modules.

Fixes from Jeff to NEW SET PRINTER code for when they give a Windows printer
name as the final word of the command, rather than as a switch value.
ckuus3.c, 20 Sep 97.

Save and restore default or user-requested block check around protocol.
ckcmai.c, ckcpro.w, 20 Sep 97.

Change SET WINDOW parsing to give error message for X and Ymodem[-g], and
changed for ZMODEM to require that window size be a maximum of 64K, and not
a multiple of 64.  ckuus3.c, 20 Sep 97.

Changed SET RECEIVE PACKET-LENGTH to be usable only for Kermit protocol.
In XYZMODEM, if you can change them at all, you have to do it to the sender.
ckuus7.c, 20 Sep 97.

Supplied missing error message for junk typed after "CONNECT" and then
completion was attempted (e.g. "connect xxx<ESC>").  Chained FDB parsing can
be a bit tricky...  ckuusr.c, 20 Sep 97.

Make SET SPEED 134.5 and SHOW SPEED for 134.5 work right.  ckuus[34].c,
20 Sep 97.

Fixed UNIX ttspdlist[] not to return two copies of "57600" if _B115200 was
defined, oops (HPUX only).  ckutio.c, 20 Sep 97.

Updated UNIX, VMS, etc, BWR and UPD files about lots of stuff.  20 Sep 97.

VMS CMU/IP fixes from John Santos.  ckvtio.c, ckvker.com, 20 Sep 97.

New makefile entries for all HP-UX versions from Peter Eichhorn.  20 Sep 97.

Lots of #ifdef adjusting for building on many platforms with & without various
features, assorted modules.  Builds OK on SunOS with various feature sets,
HP-UX 10.20, AIX 4.1, SINIX 5.42, Linux, VMS 5.5, and passes basic runtime
tests.  20 Sep 97.

A couple corrections to yesterday's work from Jeff.  ckuus[37].c, 21 Sep 97.

Changed minor version number from 0 to 1: 6.1.193.  ckcmai.c, 21 Sep 97.

SET TERM AUTODOWNLOAD wasn't working right in UNIX -- the first packet is
missed, so we had to wait forever for a timeout before it kicked in.  Not sure
why it stopped working, but to fix it I changed the hokey mechanism that was
being used (i.e. throw the packet away and send a NAK) to what I should have
done in the first place -- put the packet in a global buffer, caching it for
rpack(), and then actually using the one that kstart() recognized.  Of course
this wasn't easy in UNIX with the forks and all (no matter wht you want to do,
the *other* fork is always only place to do it)...  But now it works again,
and it's much faster.  ckuus4.c, ckucon.c, ckcfn2.c, 21 Sep 97.

Also removed NAK-sending code from autodown(