通讯/手机编程

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ckc197.txt：源码内容

but not pass the start-printer or stop-printer sequences to the printer.
Changed most UNIX makefile targets from wermit to xermit, to use the new
select()-based CONNECT module, which has much new stuff in it that ckucon.c
does not have. In general, I changed every entry that has -DTCPSOCKET to the
xermit target unless it was really old and I hadn't heard anything about it in
many years. makefile, 26 Nov 98.
Added HELP text for recent commands. ckuus2.c, 26 Nov 98.
If DIAL RETRIES was not set explicitly, then at DIAL time use a retry limit
based on the local country code. Currently, this is 10 for country code 1
and 1 for all others. This can be expanded as I get info about other
countries. ckuus[346].c, 26 Nov 98.
Added SET CLOSE-ON-DISCONNECT { ON, OFF }. If ON, it means that if we notice
that a serial connection is disconnected (because CD went off), we close the
device immediately. This releases it for use by others (e.g. removing the
lockfile in UNIX). OFF by default, for consistency with previous releases.
Supporting code needs to be added for K95; it goes in ttchk() -- see example
in ckutio.c (search for "clsondisc"). ckcmai.c, ckuus[r234].c, ck[uv]tio.c,
26 Nov 98.
#ifdef adjustments to allow building with different features deselected:
many, many modules. 26 Nov 98. Examples (on SunOS 4.1.3):
Full: 1155072
-DNOIKSD 1146880
-DNOLOGIN: 1138688
-DNOPUSH 1122304
-DNOSPL 999424
-DNOLOCAL: 884736
-DNOLOCAL -DNOLOGIN 819200
sunos41mi: 335872
sunos41m: 212992
Don't let "close connection" fall through if clsconnx() returns an unexpected
value. ckuusr.c, 27 Nov 98.
Added MANUAL command, which in UNIX runs the "man" command, default topic
"kermit". In VMS it runs the "help" command, default topic "kermit". For K95,
I wrote code to parse chapter names and then to run SE on:
file:///<startupdir>/DOCS/manual/kermit95.htm#<chapter>
but have no way to compile or test, needs fixing. ckuusr.[ch], 29 Nov 98.
Added a reference to the MANUAL command to the main HELP screen. ckuus2.c,
29 Nov 98.
Changed HANGUP command to also call ttchk(). This way, if the HANGUP command
forced a serial connection to close (and carrier to drop), this engages the
SET CLOSE-ON-DISCONNECT code. ckuusr.c, 29 Nov 98.
Added support for 75/1200 bps split speed for Unixware 7. Untested.
ckutio.c, 29 Nov 98.
Added missing sections to ckermit2.txt: SET [ SERVER ] CD-MESSAGE, SET FILE
PATTERNS AUTO, SET COMMAND AUTODOWNLOAD, LATIN-9, TYPE /PAGE, and RESET, plus
COPY command improvements. 29-30 Nov 98.
Fixed 75/1200 support after testing revealed it didn't work. ckutio.c,
ckuus5.c, 30 Nov 98.
Built on Red Hat Linux 5.2. Needed -lcrypt added to LIBS. makefile,
30 Nov 98.
Linux version could not access modem signals. Got help from Ted Ts'o and
Gert Doering, now it works. SHOW COMM shows them, CONNECT mode pops back to
command prompt automatically when carrier drops, etc. ckutio.c, 1 Dec 98.
Built Linux C-Kermit with egcs 1.0.3 on Red Hat 5.2. Added linuxegcs makefile
entry. makefile, 1 Dec 98.
Also checked linuxs entry (static linking) -- works, makes a 2.2MB executable
(compared to 914K with dynamic linking).
Made FAST the default for UNIX and VMS (it already was the default in K95);
let's see who hollers. ckcmai.c, ckcker.h, ckuus[5h].c, 1 Dec 98.
Added SOCKS5 support from Ric Anderson. ckcdeb.h, ckcnet.[ch], ckuus5.c,
1 Dec 98.
Fixed the MANUAL command to account for NOPUSH/nopush. ckuus[r2].c, 1 Dec 98.
Supplied missing RMKDIR command. ckuusr.c, 1 Dec 98.
Verified IKSD on Red Hat 5.2 Linux 2.1.125. All is OK except, like SunOS,
it has the syslog-vs-chroot bug. See notes from 30 Aug 98.
Moved annoying error messages from REDIRECT parsing to after confirmation, so
we can use command recall. This should also be done for any other commands
that issue error messages and fail in mid-parse for non-syntactic reasons.
ckuusr.c, 1 Dec 98.
New & improved HP-UX makefile entries from Peter Eichhorn. 2 Dec 98.
Confirmation from Piet Vloet at Siemens Austria that 8 bits + parity work OK
on Solaris. 2 Dec 98.
kermit -y filename was broken, more fallout from the "call prescan() twice"
business (see notes from 22 Aug), this time because of the argument that was
added that made it skip some things. I just put it all back to the way it was
prior to 19 July and it seems to work OK (the notes don't shed any light, but
probably the changes were made for some reason specific to K95, so proper
prescan() operation should be rechecked there). ckuus4.c, 2 Dec 98.
Added a bunch of missing commas separating help-text lines. ckuus2.c,
2 Dec 98.
Removed now-inappropriate #ifdef NETCONN from extern int ttnproto in ckudia.c,
2 Dec 98.
Added -DNOGETUSERSHELL to all HP-UX entries prior to 8.00. makefile, 2 Dec 98.
SCO OSR5, and therefore probably all earlier versions, get unresolved
references to "std_syslog" and "openlog" at link time. Builds OK only with
-DNOSYSLOG. Added -DNOGETUSERSHELL and -DNOSYSLOG to SCO OSR5 entries, and
-DNOIKSD to all the other SCO entries (except Unixware). makefile, 2 Dec 98.
Added appropriate #includes for select() to ckucns.c, needed at least for QNX.
ckucns.c, 2 Dec 98.
Built on dozens of platforms, made numerous adjustments to #ifdefs and
declarations. 2 Dec 98.
Added -DNOIKSD to HP-UX 5.x entry. Makefile, 3 Dec 98.
Fixed a bug in which "run blahfxxx" (RUN any-string-with-f-in-it) would
hang. The problem turned out to be that the RUN command parser always
returned -1 if cmtxt failed, rather than returning cmtxt's return code.
ckuusr.c, 3 Dec 98.
Fixed a longstanding bug in the BSDI version, in which incoming file dates
were set in GMT rather than local time. It seems in 4.4BSD, localtime() does
not return the local time, but rather Zero Meridian (Zulu) time (GMT), and
must be adjusted by the tm_gmtoff value. ckcdeb.h, ckufio.c, 3 Dec 98.
It turns out the same bug also affected FreeBSD, so I'm assuming it also
applies to all other 4.4BSD derivatives, and so made the previous change be
#ifdef BSD44. Tested OK in FreeBSD 2.2.7 and BSDI 3.1. ckufio.c, 3 Dec 98.
After getting "man" to work on SCO 3.2v5.0.5, I discovered that -lsocket is
required there to make syslog() work. Added -DSYSLOG to the sco32v5*net*
entries, which already were linking with libsocket. Added a separate set of
entries for SCO 3.2v5.05. ckcdeb.h, ckuver.h, makefile, 3 Dec 98.
Noticed that the SCO OSR5 version was sending uppercase filenames. Started to
work on tracking it down, but now, just when it gets to the filename, it
crashes in the malloc() that is called from sfile(). There does not appear to
be anything wrong with this code, and the same code works fine on dozens of
other platforms. malloc() is being passed an integer whose value is 1024.
Compiling with gcc rather than cc fixes the problem. Not very satisfying,
though... Keeping at it, I found that if I reworked the offending bit of code
and rebuilt with cc, the problem moved to another unrelated bit. Finally I
tracked it down to a non-ANSI prototype for getcwd() in zgtdir(). Commenting
it out fixed everything. So what other little time bombs are lurking
throughout the code? (Lines that were perfectly harmless for years and years
can suddenly become fatal...) ckufio.c, 3 Dec 98.
The problem with uppercase filenames comes from using "send /bin", and in fact
happens everywhere, not just on SCO. It's because "send /bin" sets transfer
mode to manual and file type to binary, to force a binary transfer no matter
what. But manual transfer mode means we don't automatically switch to literal
filenames when sending UNIX to UNIX. Phooey. This was fixed as follows:
previously, when we compared system types, we did so only if xfermode == auto.
If they match, we set the transfer mode to binary and file names literal.
Now we compare system types not only if xfermode == auto, but also if the
global (saved) g_xfermode == auto. In this case, we set file names to literal
if they match, but we set the transfer mode to binary only if xfermode == auto,
i.e. if the *current* transfer mode is auto. ckcfns.c, 3 Dec 98.
When using new C-Kermit on VMS to make a Telnet connection, it says: "tn_push
has not been defined. data loss!!!!" -- kinda scary... Copied the le_blah()
code from UNIX to VMS, and enabled the le_puts() call for VMS in tn_push().
But it doesn't work very well -- there is a long pause at the beginning of the
connection, and then 10-20 lines of junk come out (but after that it's normal).
Apparently this much more difficult than I thought, mainly because in UNIX,
the same functions (ttinc(), ttxin(), etc) are used for both serial and
network connections, whereas in VMS, we call netinc(), netxin(), etc, for
network connections. Put everything back the way it was. We get the scary
message, and have to hit return before seeing a login: prompt, but after that
all is OK. To be cont'd...
(Next day...) It's worse than I thought. The telnet local-echo buffer
business breaks the INPUT command on Telnet connections, even for the UNIX
version.
Fixed long lines in ckuath.c, ckuat2.c, and ckusig.c. 4 Dec 98.
Fixes from Jeff for INPUT vs local-echo buffer, plus a keyword-table size
error. ckcnet.c, ckuus7.c, 8 Dec 98.
Changed hardwired references to uid_t and gid_t in the new authentication code
to UID_T and GID_T, which are portably defined in ckcdeb.h, to fix ckufio.c
compilation failure on HP-UX 6.5. Also needed to add -DNOSYSLOG and -DNOSELECT
(because ckcdeb.h defines SELECT for all HPUX's, but it's not there prior to
7.0 unless TCP/IP is installed). makefile, ckufio.c, 8 Dec 98.
Fixed UNIXLOGIN macro to allow for the possibility that a login: prompt might
not appear. Fixed NET macro to include "set login user" to disable sending
of user ID in Telnet negotiations. ckermit.ini, 8 Dec 98.
All-day project: Got common source and makefile to build cleanly on both
Red Hat 5.2 Linux (glibc) and Slackware 3.5.0 (libc). Of course the results
are still not binary compatible. How could they be? makefile, ckutio.c,
8 Dec 98.
Removed all gratuitous prototypes for getcwd() from zgtdir(). Let's see
who complains. ckufio.c, 8 Dec 98.
Almost everybody, of course. Started the long, slow process of adding back
prototypes for those platforms that don't provide them: HP-UX 6.5, Motorola
SV68, etc. This was handled in various ways -- including <unistd.h> in builds
where it wasn't included before, adding a new DCLGETCWD symbol to CFLAGS of
selected builds, and so on. zgtdir() now has real _PROTOTYP's for getcwd()
rather than the non-ANSI hardwired ones, and all are in #ifdef
DCLGETCWD..#endif. But since getcwd() prototypes involve size_t's, this too
needed an escape clause, so I made them all SIZE_T, which is defined by
default to be size_t in ckcdeb.h, but can be overridden on the command line
with -DSIZE_T=int or whatever. makefile, ckufio.c, ckcdeb.h, 9 Dec 98.
Trying to get tn_push() & friends to work in VMS (cont'd from last week...)
Moved all the code that I had added to ckvtio.c to ckcnet.c, since, for
network connections, all of the ckvtio.c routines call their ckcnet.c cousins
anyway (ttinc() calls netinc(), etc). The result works ok, except it is stuck
until the user hits the first key. Killing a process stuck in this way that
had its debug log on reveals the hangup to be in contti(), which is back in
the ckvtio.c module I just moved all this code out of... Added a(nother)
special hack to contti() to account for the local-echo buffer. Arranged
ckcnet.[ch] so that TTLEBUF selects the external implementation of these
routines & buffers, and NETLEBUF selects the internal one. Defined TTLEBUF
for UNIX and NETLEBUF for VMS. ckcnet.[ch], ck[vu]tio.c, 9 Dec 98.
Defined TTLEBUF for AOS/VS and added the code to ckdtio.c (but, like the
initial VMS try, it still gets stuck at the very beginning). 9 Dec 98.
Numerous source-level adjustments for AOS/VS. For example, if a module
contains "extern int blah;", the link step will fail if blah is not defined
anywhere, even if it is never used. Many modules. 9 Dec 98.
SOCKOPT_T adjustments for AIX 4.2 & 4.3. ckcnet.c, 9 Dec 98.
Changes from Jeff for hardware parity & stop bits for K95, plus other minor
code adjustments. ckcdeb.h, ckuus[34].c, ckcnet.c, 10 Dec 98.
From Jeff: When an incoming TCP connection has dropped, don't listen for a
new one. ckcnet.c, 10 Dec 98.
More adjustments for AOS/VS. ckdcon.c, ckcpro.w, etc. Now it links without
multiply defined or undefined symbol errors. 10 Dec 98.
Fixed the sticking problem in AOS/VS Telnet: there was a vestigial ttflui()
call in the AOS/VS version of ttpkt(). ckdtio.c, 10 Dec 98.
Increased compiler memory (-qmaxmem) from 6000 to 8000 for AIX 4.1 builds,
and to 10000 for AIX 4.2 and 4.3 (but this is still not enough for some
modules -- no big deal). makefile, 10 Dec 98.
Adjusted #ifdefs for GETSOCKNAME_T, etc, to allow clean compilation on AIX
4.3 & 4.2, since data types for various sockets library function args changed
between AIX 4.1 and 4.2. ckcnet.c, 10 Dec 98.
Made SET SPEED command not complain because it's a network connection until
after confirmation (see note on REDIRECT, 1 Dec 98). ckuus3.c, 10 Dec 98.
Problem: SET PORT blah, SET MODEM TYPE blah, DIAL blah. Then SET HOST blah.
Now that we have a network connection, HANGUP still sends the modem hangup
sequence. It *should* send this sequence if SET MODEM TYPE was given *after*
SET HOST (see p.126), but not if it was given before. Code looks right --
setlin() leaves modem type negative upon exit. Well, further testing reveals
problems go a lot deeper when we switch back & forth between serial and
network connections -- sometimes lockfiles were left behind, SET SPEED
commands would fail, etc. The primary cause was the failure of (at least the
UNIX version of) ttopen() to unset the "it's a network connection" variable
in all cases when it opened a serial connection. I also made another change,
namely that mdmhup() should call ttchk() before sending +++ATH0+++ to make
sure there is still a connection. If there isn't, don't bother. ckutio.c,
ckudia.c, 10 Dec 98.
Changes from Jeff for Postscript printer support in K95. ckuusr.h, ckuus3.c,
10 Dec 98.
Added SET DIAL MACRO command. ckuusr.h, ckuus[36].c, ckudia.c, 11 Dec 98.
Added LOG CONNECTIONS command definitions, parsing, SHOWing. Default
filename is CX.LOG in user's home directory, overridable by -DCXLOFGILE="xxx"
on cc command line, or, of course, in the LOG CONNECTIONS command itself.
ckcker.h, ckcdeb.h, ckuus[r456].c. 11 Dec 98.
Added code for writing to the connection log. The main idea is to write log
records as reliably as possible without going into the system-dependent code,
thus avoiding the necessity to update dozens of modules, many of which can't
be tested. When a connection is opened, a preliminary log record is written
to a buffer by the SET LINE or SET HOST code (this happens always, even if a
log is not open). If it was a serial port, then if a DIAL command is given,
it overwrites the original record, adding the phone number info. The trick is
to catch when the connection closes, so we can add the elapsed time to the
record and write it out to the log (I considered writing separate Open and
Close records, but people wouldn't like having to match them up). We do this
in the following places:
. The HANGUP command.
. The clsconnx() (close connection) routine.
. When the CONNECT command returns.
. When INPUT senses connection loss
. When the file-transfer protocol senses connection loss.
. In the program exit sequence as a catch-all.
We avoid writing duplicate records by punching out the partial buffer after
writing a record.
Each record is a line of text; the format is:
yyyymmdd hh:mm:ss username pid p=v [ p=v [ ... ] ]
where the timestamp shows when the connection was made; p's are parameters,
and v's are values:
T = Connection Type (TCP, SERIAL, DIAL, DECNET, etc).
H = Originating Host name.
N = Destination Number or Network host name or address.
D = Serial connections only: Device name.
O = Dialed calls only: Originating country code & area code if known.
E = Elapsed time.
Many modules, 13 Dec 98.
Fixed dial macro to (a) also apply to nonportable numbers, and (b) not apply
when user gives number starting with "=". ckuus6.c, 14 Dec 98.
Connection logging, cont'd:
. Flush connection-log writes to disk.
. Added 2 new syslog levels: DIAL, and All Connections.
. Added syslogging to dologend() routine.
. Added a compile-time symbol to force syslogging of desired level.
. Don't let user set syslogging > 5 (file reading).
Many modules, 14 Dec 98.
Added SHOW CONNECTION command to display current session (from partial log
record in memory), including elapsed time. ckuusr.[ch], 14 Dec 98.
Added code to force syslogging if built with -DSYSLOGLEVEL=n. This way
sysadmins can (e.g.) log all dialout calls by all users in syslog. Various
modules. 14 Dec 98.
Syslogging is documented in iksd.txt and ckuins.txt. The connection log is
documented in ckermit2.txt.
Recent changes to zgtdir() could result in core dumps if called when current
directory (or "..", etc) is unreadable. Also went from getcwd() back to
getwd() in SunOS since getcwd() is implemented there via popen() calling the
shell to run pwd, which is gross and slow, and also prints unwanted messages
in the aforementioned case. But getwd() is "deprecated" and not recognized by
POSIX so we avoid it elsewhere. To force its use, add USE_GETWD to CFLAGS.
ckufio.c, 15 Dec 98.
Added /COMMAND, /BINARY, and /TEXT switches to TRANSMIT. ckuus[r24].c,
ckufio.c, 15 Dec 98.
Made STATISTICS show streaming in window-slots field, like file-transfer
display does. ckuus4.c, 15 Dec 98.
Bug: the dial interval, once interrupted by "pressing any key" goes to 0 once
(as it should) but then stays there for all subsequent redials. Diagnosis:
conchk() reported the keystroke(), but coninc() was never called to read it.
Fixed in dodial(), ckuus6.c, 15 Dec 98.
It seems that on at least one PC somewhere in the world, ATS2=43 causes an
ERROR response from a Hayes-compatible modem (Dynalink 1456VQH). But this
command is hardwired into the code for all AT-command-set modems; there is no
command to disable it. Compensated for this by:
1. If ATS2=nn gives an error code, we (a) print the message only if DIAL
DISPLAY is on (rather than always), and (b) set MODEM HANGUP-METHOD to
RS-232, since we do not know that we can make the modem escape back.
2. SET MODEM ESCAPE-CHARACTER -1 (or any negative number) now disables the
sending of the ATS2=nn command to the modem, and also sets MODEM
HANGUP-METHOD to RS-232.
Note: this is a continuation of related changes from 9 Sep 98. ckuus6.c,
ckudia.c, 15 Dec 98.
Researched high serial speed API in AIX 4.2/4.3. Forget it, it's hopeless.
Documented what appears to be the method for "speed mapping" (which can be
done outside Kermit) in ckubwr.txt, AIX section. 15 Dec 98.
New MANUAL command for K95 from Jeff. 16 Dec 98.
Updated help text of LOG, CLOSE, and other commands. ckuus2.c, 16 Dec 98.
Updated UNIX man page. ckuker.cpp, 16 Dec 98.
Changed streaming to work automatically in the majority of cases, without
requiring the user to enable it. RELIABLE has a new setting, AUTO, which is
the new default. When RELIABLE is AUTO and the Kermit program that initiated
the connection requests streaming, which it does by default when STREAMING is
AUTO (which is also the default) if the connection is reliable (which it
knows, because it made the connection itself), now the remote Kermit accepts
without having to be told to SET RELIABLE ON. It also offers always, which
should do no harm, since the offer won't be accepted if the local Kermit
doesn't also offer. This concept will need some proving in the field!
ckcmai.c, ckcfn[s2].c, ckuus[23457].c, ckermit2.txt, 16 Dec 98.
Added missing RQUERY shortcut for REMOTE QUERY. Also made QUERY a valid
command -- does what RQUERY does. There's no need for the "R" since there
is no local QUERY command, nor any need for one. ckuusr.c, 16 Dec 98.
Discovered that when sending a file to QNX whose name contained any segment
longer than 48 chars, the open() failed with ENAMETOOLONG. Added code to
nzrtol() to truncate each path segment longer than MAXNAMLEN (which is defined
earlier according to time-honored #ifdefs) to MAXNAMLEN bytes. ckufio.c,
16 Dec 98.
Added variables v(hwparity) (hardware parity, if any) and v(serial)
(8N1, etc). ckuusr.h, ckuus4.c, 16 Dec 98.
Made SET SERIAL nxx also SET TERM BYTE to n. ckuus3.c, 16 Dec 98.
Changes from Jeff to speed up Telnet negotiations. ckcnet.c, 17 Dec 98.
Discovered that DIR command did not expand ~ in UNIX. That's because it was
calling system() (which uses sh) rather than zshcmd() (which uses the user's
preferred shell). Fixed in ckuus6.c, 17 Dec 98.
Discovered that IF EXIST did not expand ~ in UNIX. That's because zchki()
did not expand tildes. Fixed in ckufio.c, 17 Dec 98.
Discovered that fdate() did not expand ~ in UNIX. That's because zfcdat()
did not expand tildes. Fixed in ckufio.c, 17 Dec 98.
All this made me realize that any ckufio.c routine that accepts a filename
as an argument should run tilde_expand() on it, and if I did this, I could
move all kinds of ugly code out of ckucmd.c. But that would be a rather major
last-minute overhaul, so it's deferred for the next release.
Back to the UNIX DIR command. If it runs ls, then we can give ls switches,
etc, but we don't get regular filename parsing or a FAILURE return code if
no files match. If we run the built-in DIR command, we don't see permissions,
owner, group, etc, but we do get filename parsing and an appropriate status
indication. So I separated LS and DIR, which formerly were synonyms. Now LS
runs ls, and DIR calls the internal DIR command. ckuusr.[ch], ckuus6.c,
17 Dec 98.
Meanwhile, the internal DIR command had all sorts of problems. For example
"dir x" would list all files whose names started with "x". Also the headings
and footings were a bit annoying, so I took them out. domydir(), ckuus6.c,
17 Dec 98.
Yesterday's truncate-filename-segments code forgot to null-terminate its
buffer, so receiving a file that had a shorter name than a previous one
resulted in junk at the end of the shorter filename. Fixed in nzrtol(),
ckufio.c, 17 Dec 98.
Updates to SET PRINTER & other help text, more Telnet updates, and misc
minor corrections from Jeff. ckcnet.c, ckuus[r2y].c, 17 Dec 98.
Discovered a bad situation in UNIX fgen(), in which a debug() statement
would try to print the filename string even when no files were found and
therefore the state of the string pointer was undefined. Recent code changes
made this cause core dumps. Fixed in fgen(), ckufio.c, 17 Dec 98.
Added new system-dependent function: ziperm(filename), returns the file's
permissions in system-dependent symbolic form (unlike zgperm(), which returns
them in system-dependent numeric form). Probably will need lots of #ifdefing
when I go build on many platforms... ckufio.c, 17 Dec 98.a
Back to the built-in DIRECTORY command: domydir(). Added /BRIEF and /VERBOSE
switches; /VERBOSE means to print the heading and summary; /BRIEF means to
just list filenames as compactly as possible; if neither is included, a
verbose listing is printed but without heading and summary. Added askmore()
for paging, plus /PAGE /NOPAGE switches to control it. Changed date format to
ISO standard yyyymmdd hh:mm:ss -- no English month names or screwy American
month-day-year, and /ENGLISHDATE switch to re-enable English rather than ISO
dates. Added display of permissions for UNIX. Rearranged fields to be more
familiar and less DOS-like. ckuus6.c, 17 Dec 98.
Then I discovered that all the code I had rewritten is duplicated (for OS2
only) in dodir(). I don't understand the ONETERMUPD business so I left it
alone, but I *think* that entire mass of code can be yanked out and replaced
by a call to domydir().
Added some #ifdefs to new UNIX permissions-printing code for symbols that some
platforms might not define. ckufio.c, 18 Dec 98.
Made zgetfs() return size even if it's not a regular file, since we only use
it for directory listings. (NOTE: This change should not be made for K95,
since DOS users are not accustomed to seeing the size listed for directory
files). ckufio.c, 18 Dec 98.
Added dashes to ISO numeric date in DIRECTORY listing -- too hard to read
without them. ckuus6.c, 18 Dec 98.
Made UNIX DIRECTORY show file size for directories too. ckuus6.c, 18 Dec 98.
Made K95 call domydir() instead running special code. ckuus6.c, 18 Dec 98.
Made server-side directory listing code compatible with domydir(). nxtdir(),
ckcfns.c, 18 Dec 98. (Project for a rainy day: consolidate sndir(), nxtdir(),
and domydir().)
From Jeff: it turns out that the parameter passed to the getc() function that
is given to tn_doop() is not really a dummy after all. tn_doop() passes a 0
value to the function because it is expecting a blocking read. This was not
happening. tn_doop() was also not checking the return code of the getc()
function and was converting it to a char. So -1 (timeouts) was being treated
as IAC. Fixed in ckutio.c, ckcnet.c, 18 Dec 98.
From Jeff: Mutexes in K95 for local-echo buffer vs connection. ckcnet.c
18 Dec 98.
Added a new DIRECTORY command switch, /HEADING, to decouple printing of
headings and summaries from /VERBOSE and /BRIEF. ckuusr.h, ckuus6.c,
18 Dec 98.
Added a new command to set default options for other commands that take
switches: SET OPTIONS <command> <switch> [ <switch> [ ... ] ]. ckuusr.[ch],
ckuus3.c, 18 Dec 98.
But this meant that each option requires an opposite, so added /NOHEADING,
and /ISODATE. ckuusr.h, ckuus6.c, 18 Dec 98.
Filled in SET OPTIONS DIRECTORY [ switches ]. ckuus6.c, 18 Dec 98.
Changed filhelp() to return 1 if it listed all the files, and 0 if the listing
was terminated prematurely (by the user replying "n" to askmore()), to allow
DIR /BRIEF /HEADING to work. ckucmd.c, ckuus6.c, 18 Dec 98.
Added HELP text for DIRECTORY and SET OPTIONS. ckuus2.c, 18 Dec 98.
Cleaned out hundreds of lines of cruft from dodir(). ckuus6.c, 18 Dec 98.
Fixed streaming glitch introduced on Dec 16. ckcfns.c, 18 Dec 98.
Minor changes from Jeff to ckcdeb.h and ckcnet.c, 20 Dec 98.
Moved sh_sort() to ckcmai.c with other general-purpose utilities and added
key & reverse parameters. ckcdeb.h, ckucmd.c, ckcmai.c, 20 Dec 98.
Added /[NO]RECURSIVE, /NOSORT, /SORT:{NAME,DATE,SIZE}, /ASCENDING,
/REVERSE (= /DESCENDING) switches to DIRECTORY and SET OPT DIR commands:
ckuusr.h, ckuus6.c, 20 Dec 98.
Fixes from Jeff. ckcnet.c, ckuus6.c, 21 Dec 98.
Moved SET OPTIONS keyword table to top level since aggregate initialization
of structs is not portable. ckuus6.c, 21 Dec 98.
Filled in zgperm() and ziperm() for VMS. Made VMS zgetfs() return file size
even for directories. Added zrelname() to convert a full pathname to one that
is relative to the current directory (needed only for VMS).
ckvfio.c, 21 Dec 98.
Made filhelp() for VMS return zrelname()-shortened names. ckucmd.c, 21 Dec 98.
Made domydir() work for VMS. ckcdeb.h, ckuus6.c, 21 Dec 98.
Various directory listing improvements. Don't give "more?" prompt if last
line that was shown is the actual last line. Made more-prompting take
wrapping of long lines into account, watching out for lines that are exactly
the column width. Lots of other checking added, boundary conditions handled,
etc. ckuus6.c, 21 Dec 98.
Added SHOW OPTIONS. ckuusr.h, ckuus[56].c, 21 Dec 98.
Updated HELP DIRECTORY text. ckuus2.c, 22 Dec 98.
From Jeff: Corrections to fscrncur[xy](); they do not require arguments.
ckuus4.c, 23 Dec 98.
From Jeff: SET TERM SPACING-ATTRIBUTE-CHARACTER (invisible, a debugging tool).
ckuusr.h ckuus7.c, 23 Dec 98.
Tried changing SYS$OPEN() to SYS$DISPLAY() in zgperms(), but result was
error 99684 "invalid internal file identifier".
Changed xxstrcmp() (caseless string compare) to ckstrcmp() (string compare in
which case-matters is a parameter), and defined xxstrcmp() to be a macro that
calls ckstrcmp() with the parameter set to 0, but changed all references to
xxstrcmp(a,b,c) to ckstrcmp(a,b,c,0) anyway. ckcker.h, ckcmai.c, 23 Dec 98.
Replaced all constructions like:
x = casematters ? strcmp(a,b,c) : xxstrcmp(a.b.c)
with ckstrcmp(a,b,c,casematters). Many modules, 23 Dec 98.
Added a "case matters in filenames" constant: filecase (1 for UNIX and OS-9,
0 elsewhere). ckcdeb.h, ckcmai.c, 23 Dec 98.
Added a "case matters" parameter to sh_sort(). ckcker.h, ckcmai.c, 23 Dec 98.
Changed filename "?" and directory sorts to obey filecase setting by passing
filecase as an arg to sh_sort(). ckucmd.c, ckuus6.c, 23 Dec 98.
Added SHOW ARRAY &x to display the contents of array x. Previously SHOW
ARRAY did not take an argument, but simply listed all defined arrays.
ckuus6.c, 23 Dec 98.
Added SORT [ { /CASE:{ON,OFF} /KEY:n /REVERSE /SIZE:n } ] <array>. Testing
this by reading a file into an array and then sorting it revealed all sorts of
holes in the recently updated string comparison and sorting routines --
e.g. when the key is off the end of the string, or when one of the elements to
be compared is null, etc. Plugged all of these. ckuusr.[ch], ckuus[56].c,
23 Dec 98.
From Jeff: Move "<DIR>" to left of size column for sorting purposes.
Fix SET PRINTER /W.. to accept abbreviations for /WINDOWS-Q that worked
prior to adding /WIDTH. ckuus[36].c, 24 Dec 98.
Discovered that a typo yesterday's changes broke IF EQUAL. Fixed in doif(),
ckuus6.c, 24 Dec 98.
Changed ffiles() and related functions (fdir(), etc) to take a second arg,
an array 'pointer', to make array contain file list, e.g. ffiles(*.txt,&a).
Element 0 of the array contains the size of the list, and elements 1..n
contain the filenames. NOTE: This does not work in K95 because I didn't see
any obvious way to access the alternative "znxt" list -- probably we just need
to remove the #ifdef OS2 from the code in fneval FN_FC that calls znext() in
a loop to make a copy of the file list. ckuus4.c, 24 Dec 98.
Added HELP SORT text. ckuus2.c, 24 Dec 98.
From Jeff, 24 Dec 98:
. Fixed memory (de)allocation problems in ffiles(): ckuus4.c.
. Add ffiles() array assignment for K95: ckuus4.c.
. Add Wyse160 emulation (=WY60+blockmode): ckuusr.h, ckuus[257].c.
Fixed Jeff's corrections (don't call makestr() with uninitialized pointers,
some fencepost errors). ckuus4.c, 25 Dec 98.
Updated HELP FUNCTION text for f[r]files(), f[r]directories(). ckuus2.c,
25 Dec 98.
Fixed some glitches in SORT command parsing. ckuusr.c, 25 Dec 98.
Fixed UNIX CONNECT module to log incoming characters to session log BEFORE
translation (etc) if session log is binary. If session log is text, chars
are logged after translation (etc), as before. ckucns.c, ckucon.c, 25 Dec 98.
Added SET OPTIONS TYPE { /PAGE, /NOPAGE } and added TYPE to SHOW OPTIONS,
just so we don't have only one command we can set options for. ckuus[r5].c,
25 Dec 98.
A few more fine adjustments to ffiles() array code. ckuus4.c, 26 Dec 98.
Realized that we really need to allow the user to specify both the start and
end range of elements to be sorted, in case they really do want to use 0-based
arrays (or they want to sort pieces of arrays for some reason). Changed
/SIZE:n to /RANGE:n:m. Also, moved the SORT command code from ckuusr.c to
cuus7.c. 26 Dec 98.
Used the new "parse-a-range technology" to allow SHOW ARRAY a[n:m]. ckuus5.c,
26 Dec 98.
Discovered still more problems in SORT switch parsing, mainly that command
retry and recall were totally fouled up. The reason was quite subtle. The
object was to parse SORT [ switches ] array-name. Now, to allow for the
possibility that the user might type &a as the array name (i.e. include the
initial backslash), this required the switch keyword table to have a NULL
processing function, rather than the customary xxstring, otherwise cmkey()
would run xxstring on the array name and fail because the result did not match
a keyword from the table. The problem was that the path taken through cmkey()
when the processing function was NULL had never been used before, and
therefore never debugged: the wordlength variable was improperly set in this
case, and (more interestingly), upon reparse, gtword() would return the
switch together with its argument, and therefore the assumption that it had
broken on the ":" or "=" was violated, and therefore the switch *with* its
argument was looked up in the keyword table, which naturally failed. Fixed
in cmkey2(), ckucmd.c, 26 Dec 98.
Fixed all array-name parsing functions to allow for the &@[] array (a
special case). ckuus5.c, 26 Dec 98.
Another minor correction to ffiles() array management. ckuus4.c, 27 Dec 98.
Updated HELP SORT text. ckuus2.c, 27 Dec 98.
Updates to Telnet code from Jeff to accommodate sparse Telnet option arrays.
ckctel.h, ckcnet.c, 27 Dec 98.
Updated NEWS command. ckuus2.c, 27 Dec 98.
NeXTSTEP was missing symbol definitions for most of the permission bits in
<sys/stat.h>. Added #ifndefs for them. ckufio.c, 27 Dec 98.
Fixed misplaced #ifdef CK_TTGWSZ in domydir(): ckuus6.c, 27 Dec 98.
Defined UTIMEH for HP-UX 9.0. ckufio.c, 27 Dec 98.
Got rid of getuid(), etc, prototypes for HP-UX 9.0. ckutio.c, 27 Dec 98.
DECC 5.5 on VMS 7.1 is great at finding stuff the other compilers don't:
. Missing prototypes for sopkt() and zrelname(). ckcdeb.h, ckcker.h.
. Missing prototype for lower(), and signed vs unsigned char casts
for args to various lower(), le_getchar(), etc. ckcnet.c.
. Missing prototype for iks_wait(). ckctel.h.
. Missing prototype for cmswi(). ckucmd.h.
. sb[] used before declared. Moved declaration up. ckcnet.c.
. Decomposed the statement "len = (xunchar(*p++) * 95) + xunchar(*p++)",
which elicited a rather stern warning. ckcpro.w.
. The prototypes for some of the Kanji translations were in #ifdef KANJI
in ckcker.h. But KANJI was defined in ckcxla.h, which was included *after*
ckcker.h. Moved the errant prototypes from ckcker.h to ckcxla.h, where
they belonged. ckcker.h, ckcxla.h.
. Removed obsolete reference to me_binary from ckvcon.c.
. Many more like this.
After all this I get clean builds on VMS 7.1 with DECC. 27 Dec 98.
Removed curses support from QNX16 version. See notes in makefile. 27 Dec 98.
Fixed typos in ckuus3.c and ckucon.c, noticed during X.25 build. 27 Dec 98.
---7.0 Beta.02---
From Jeff, 30 Dec 98:
. Define & implement two new responses for Telnet IKS negotiation.
. Define & implement several features for Pragma Systems telnet client.
. Fixes for K95 VIEW command.
Added BSDI 4.0 target & banner. makefile, ckuver.h, 30 Dec 98.
Increased Olimit for IRIX 6.4 build to stop warnings. makefile, 30 Dec 98.
#ifdefs for SCO 3.2v5.0.x perror() prototype vs gcc. ckcdeb.h, 30 Dec 98.
#ifdefs for SCO 3.2v5.0.x perror() declaration and contents (void vs int
return type). ckuusx.c, 30 Dec 98.
Added missing #ifdef DEBUG around code in shocps() that referenced deblog.
ckuusx.c, 30 Dec 98.
Added code to check if, upon CONNECTing, the Telnet server is actually an
IKSD in server mode, and in that case to return to the prompt. ckucns.c,
ck[uvd]con.c, 30 Dec 98.
Broke up a complicated printf() that blew up the Motorola SVR3 compiler.
shotopt(): ckuus4.c, 30 Dec 98.
Fixed some help-text typos. ckuus2.c, 30 Dec 98.
Jeff pointed out that UNIX C-Kermit is dropping Telnet negotiations because
ttflui() doesn't check for Telnet negotiations. The big switch statement in
ttinl(), which checks for IAC and if we're doing Telnet protocol, calls
tn_doop(), and then handles its return code, has to be duplicated in ttflui().
So I moved the switch() statement to a new routine, tt_tnopt(), and called it
from ttinl(). This didn't seem to break anything, so then I placed calls to
tt_tnopt() into ttflui() and ttflux(). This didn't seem to break anything
either, but it will need testing in the situations where negotiations were
being lost before. ckutio.c, 30 Dec 98.
Corrections to yesterday's ckutio.c changes plus some other stuff from
Jeff, various modules, 31 Dec 98.
Adjustments to makefile & source modules for AT&T 7300 and other entries based
on SVR3 and earlier -- add:
-DNOSYSLOG -DNOSYMLINK -DNOGETUSERSHELL -DNOINITGROUPS -DNOFTRUNCATE
to CFLAGS, and make sure all the appropriate #ifdefs are in place. Also,
add #ifndef NOGFTIMER to an unguarded reference to fpfsecs. makefile,
cku[tf]io.c, ckuusx.c, 31 Dec 98.
Corrected yet another problem in ckindex() when told to search from the right.
ckuus4.c, ckcmai.c, 31 Dec 98.
Fixed IF MATCH to actually pass the SET CASE variable to ckmatch(), like it
was alway supposed to. ckuus6.c, 31 Dec 98.
Reworked ckmatch() to allow quoting of metacharacters and single-character
matching by [abc] (list of chars) or [a-z] (range of chars), or any
combination. The code is not exactly elegant but I think it covers every
conceivable combination (which I don't think elegant code can do). Tested
extensively with "if match" over a hundred patterns ranging from those that
might be commonly used to the truly bizarre. match.ksc, ckcmai.c, 31 Dec 98.
Changed the match() call in ckufio.c to ckmatch(). Now it is possible to tell
C-Kermit to "send ck[cuw]*.[cwh]". Of course, it also affects all other
commands that parse filenames, as well as ? file lists, e.g. "send ck[cu]?".
ckufio.c, 31 Dec 98.
Fixed parsing of SET WILD SHELL when NOPUSH/nopush. ckuus3.c, 31 Dec 98.
Verified ckmatch() works with 8-bit data, includeing 0xff. However, IF MATCH
neglected to handle braces correctly so strings or patterns containing spaces
didn't work right; fixed in ckuus6.c, 1 Jan 99.
Added a new argument to ckmatch, telling whether to match strings that start
with ".", to make UNIX filename globbing work as before. The new arg is the
"matchdot" variable, set by SET WILD KERMIT /[NO-]MATCH-DOT-FILES, used only
when calling from within zxpand(), otherwise always 1. ckcker.h, ckcmai.c,
ckcfns.c, ckuus[56].c, ckufio.c, 1 Jan 99.
Added {string1,string2,...} matching to ckmatch(), in which the strings
themselves can be patterns, recursing to any reasonable level. ckcmai.c,
ckermit2.txt, 1 Jan 99.
Updated UNIX iswild() to know about new metacharacters, and also to know about
quoting, which it never did before. ckufio.c, 1 Jan 99.
Problem: At some point since last May (but before Beta.03) I broke parsing
of quoted question marks in filenames, e.g.:
send cku?io?
Instead of listing several files like it should, it went nuts. Found & fixed
the problem in gtword(): ckucmd.c, 1 Jan 99.
Added CKREGEX and NOCKREGEX compile-time symbols. Use the latter to get rid
of [] and {} globbing in case it produces undesirable effects. Otherwise
CKREGEX is defined for all platforms. ckcdeb.h, ckcmai.c, ckufio.c, 1 Jan 99.
Put SHOW PATTERNS in #ifdef PATTERNS so it doesn't show up on VMS, etc..
ckuusr.c, 1 Jan 99.
DISABLE DELETE prevented SET FILE COLLISION xxx in the client. Fixed the code
so the check is made in the server. ckcfns.c, ckcpro.w, 1 Jan 99.
More fixes to ckindex() so the optional 3rd argument is treated uniformly for
both left and right searches. ckcmai.c, ckuus[24].c, ckermit2.txt, 1 Jan 99.
A user reported that an ancient and hacked version of Kermit that is found on
QNX2 and QNX3 systems, when it sends "&" in its parameter string to indicate
it wants to do 8th-bit quoting, demands a response of "&" and does not accept
"Y", which C-Kermit sends. Added an invisible command: SET Q8FLAG {ON,OFF}.
When ON, this makes C-Kermit reply with the same 8th-bit quote character that
the sender sent; when OFF (the default), it responds with "Y" as it always
did. ckuusr.h, ckuus[r3].c, ckcfns.c, 1 Jan 99.
DIRECTORY would print nothing and succeed if it ran out of memory when
making a sorted listing. Now it prints "?Too many files match" and fails.
ckuus6.c, 1 Jan 99.
Updated gettcs() (which picks the intermediate character set for TRANSLATE,
TRANSMIT, and non-K95 CONNECT to account for Latin-9, CP858, and CP1252 for
Euro's sake, just in time! ckuus4.c, 1 Jan 99.
Updated SHOW CHARACTER-SETS to account for Latin-9 as an intermediate set:
shotcs(), ckuus5.c, 1 Jan 99.
Corrections from Jeff to yesterday's changes. ckcmai.c, ckuus[23].c. 2 Jan 99.
Discovered that UNIX coninc(x), where x > 0, returned -1 rather than -2 on
timeout. When coninc() calls ttinc() the fix rather hideous -- see the code.
ckutio.c, 2 Jan 99.
Added SET ASK-TIMER n (sec), to make ASK and friends time out and fail if user
doesn't supply an answer within n seconds. Works with ASK, ASKQ, GETOK, and
GETC. ckuusr.h, ckucmd.c, ckuus[r36].c, 2 Jan 99.
Added IF ASKTIMEOUT to let script writer test whether ASK-class command failed
because of timeout. ckuusr.h, ckuus6.c, 2 Jan 99.
Added --timeout:n for IKSD login. ckuusr.h, ckuus[25y].c, 2 Jan 99.
Set a default time limit to log in to IKSD at 300 seconds (5 min). This works
in the Username:/Password: dialog via the ASK-TIMER mechanism, and in
client/server mode via some crude sampling of the system clock (not foolproof;
if user client never sends anything I don't think the server will time out).
ckcmai.c, ckuus7.c, 2 Jan 99.
Updated help text for new commands and reformatted much of the help text for
more consistent indentation and spacing. ckuus2.c, 2 Jan 99.
VOS updates, etc, from David Lane & Jeff. 4 Jan 99.
VMS updates from John Santos. ckcnet.c needs saddrlen declared as unsigned.
DEC C 6.0 header files refer to a data type of u_int but don't define it
anywhere, so a definition was added to ckcnet.h. Changed the name of rdata
state in ckcpro.w to rdpkt, since the name rdata conflicts with a struct
element defined in nameres.h. 4 Jan 99.
Got rid of "Negotiations..." and spinner display when in remote mode.
Only the client should print these. ckcnet.c, 4 Jan 99.
Problem (which is not new): "dir /recursive */blah" matches all files in the
current directory, because this becomes "./*/blah" and the "*" segment matches
all files in the current directory (see traverse() in ckufio.c).
Fix 1: At the point where we are adding a file because the search is recursive
and the file is not a directory, match it with the original pattern. This
filters out all the files whose names are different from the desired one, but
since the current segment has "./" prepended to it, "*/blah" also matches
"blah" in the current directory because "blah" has become "./blah". Also
"dir /recu blah" matches nothing, even if "blah" is in the current directory
and/or subdirectories.
Fix 2: Like fix 1, but point past the leading "./" prior to the comparison.
This makes "dir /recursive */blah" work exactly right, but it prevents "dir
/recursive blah" from matching blah files in subdirectories because the
pattern "blah" does not match "xxx/blah". But this is the right track. Note
that * does not match slash in UNIX filename globbing; but in ckmatch() slash
is just another character. Therefore, it's the responsibility of the file
code to pass the right strings to ckmatch(). The trick is to note how many
directory separators were in the original pattern, and then match strings
containing that many segments. For example, if the original pattern is
"oofa.txt" (1 segment), and we are matching ./aaa/bbb/oofa.txt (4 segments),
we must strip 4 - 1 = 3 segments from the left before matching. Similarly, if
the original pattern is */oofa.txt, we strip 2, and match with bbb/oofa.txt.
So now suppose we have a directory tree in which oofa.txt files exist at all
levels. "dir oofa.txt" shows the one at the current level. "dir /recursive
oofa.txt" shows all the ones at all levels. "dir */oofa.txt" shows the ones
one level down. "dir /recursive */oofa.txt" shows the ones one level down
and lower. "dir /recursive */*/oofa.txt" shows the ones 2 levels down and
lower, etc etc. fgen(), traverse(): ckufio.c, 5 Jan 99.
More cleaning up & improving HELP text, especially HELP SET HOST. ckuus2.c,
5 Jan 99.
Jeff broke the Telnet protocol out of ckcnet.c to a separate module, ckctel.c.
5 Jan 99.
Changed UNIX makefile to account for ckctel.c. 5 Jan 99.
Some changes to IKS server in/out switching from Jeff. ckcpro.w, 5 Jan 99.
Jeff made dodir() call domydir() in K95. ckuus5.c, 5 Jan 99.
Jeff made TELNET command add an implicit /TELNET at the send of the command.
ckuus7.c, 5 Jan 99.
Added HELP WILDCARDS. ckuusr.[ch], ckuus2.c, 5 Jan 99.
Added SET F-ACK-BUG { ON, OFF } (invisible). ckuusr.[ch], ckuus3.c, ckcpro.w,
6 Jan 99.
Added a section on coping with faulty Kermit implementations to ckermit2.txt,
6 Jan 99.
Added messages to refer UNIX users to installation instructions when access
to lockfile directory and/or dialout device is denied. ckuus7.c, 6 Jan 99.
Moved common library routines from ckcmai.c to a separate module, ckclib.[ch],
and updated the UNIX makefile to know about it. 6 Jan 99.
Added code to protocol module to catch failure to negotiate Kermit server on
Telnet connection. ckcpro.w, 6 Jan 99.
Updated the VMS build procedure for ckctel and ckclib. ckvker.com, ckvold.com,
6 Jan 99.
Updated the OS-9 build procedure for ckctel and ckclib. ck9ker.mak, 6 Jan 99.
Updated the Plan-9 build procedure for ckctel and ckclib. ckpker.mak, 6 Jan 99.
Updated the DG build procedure for ckctel and ckclib. ckdsrc.lis, 6 Jan 99.
Updated the Amiga build procedure for ckclib. ckiker.mak, 6 Jan 99.
Updated the VOS build procedure for ckctel and ckclib. cklker.mak, 6 Jan 99.
Fixed various glitches in ckcnet/ckctel split uncovered by building in VMS.
6 Jan 99.
Added fpermissions(file). ckuusr.h, ckuus[24].c, 6 Jan 99.
Added v(lockdir) for UNIX. ckuusr.h, ckuus4.c, 6 Jan 99.
Added IF READABLE and IF WRITEABLE. Each of these takes either a filename
or a directory name. Getting them to work for directories was a hack (global
variables again). Probably in K95 they should just always succeed. ckuusr.h,
ckuus6.c, ck[uvd]io.c, 6 Jan 99.
Note: These last several items are mainly in case we ever want to
write an install-myself script.
Some changes from Jeff to (in)visibility of Telnet-related keywords.
ckuus3.c, 6 Jan 99.
telnet.txt from Jeff added to docs. 6 Jan 99.
Discovered that makelist(), which parses {{xxx}{xxx}...} lists (as in
SEND /EXCEPT:) chokes on {{{xxx,yyy,zzz}}} -- i.e. when you want to put a
new-format wildcard as the exception list. Fixed in ckuusr.c, 6 Jan 99.
Fixed DIRECTORY /HEADING /RECURSIVE not to list the number of directories,
since it's always 0 (zxpand() does not include directories in its list when
called recursively). ckuus6.c, 6 Jan 99.
Added DIRECTORY /[NO]DOTFILES for UNIX & OS-9. ckuusr.h, ckuus6.c, 6 Jan 99.
Added SET HOST /NETWORK-TYPE:{TCP/IP,COMMAND,...}. No reason not to, and it
was easy. Also made SET HOST /COMMAND invisible, since it is only a special
case of /NETWORK-TYPE:. The /NETWORK-TYPE switch does not affect the global
SET NETWORK TYPE. ckuusr.h, ckuus7.c, 6 Jan 99.
Updated Telnet-related HELP text from Jeff. ckuus2.c, 7 Jan 99.
The code I put in to prevent "Negotiations...." from coming out of IKSD also
prevented it from coming out of the client. Fixed in tn_wait(), ckcnet.c,
7 Jan 99.
Discovered the server end of REMOTE DIRECTORY is broken in UNIX for huge
directories. Local directory listings are fine. A packet log reveals that
the transfer looks normal, but the data ends early. Debug log shows "sending
packet out of window" for every data packet, but that always happens when
streaming. Changed spack() not to log this message when streaming. ckcfn2.c,
7 Jan 99.
The problem turned out to be not the size of the directory, but the fact that
it contained a file with an 8-bit name, and we were storing the filenames in a
char array instead of an unsigned char array. Returning an 8-bit signed char
from int nxtdir() caused its sign to be extended, and a negative return signals
EOF. Fixed in nxtdir(), ckcfns.c, 7 Jan 99.
Discovered that the VMS C-Kermit Telnet client on UCX makes the connection OK,
but loses the hostname. But only if TCP REVERSE-DNS-LOOKUP is ON and only
with certain hosts. Discoveries: (1) the fact that gethostbyaddr() returns
non-NULL does not mean that h_name is set; and (2) netopen() writes into its
hostname argument -- gak! Fixed netopen() to handle case (1) by filling in
the IP address if no name comes back, and also to issue its "blah connected on
port blah" messages a bit more consistently. Left (2) alone, sleeping dogs
department... ckcnet.c, 7 Jan 99.
Discovered that VMS tthang(), in the network case, closed and then reopened
the network connection. Fixed it to just close it. ckvtio.c, 7 Jan 99.
Fixed a place where quiet was not restored before returning from doconect().
ckuus4.c, 7 Jan 99.
Added code to UNIX traverse() to make it return directory names during
recursive traversal, as well as filenames. This was a bit tricky due to the
possibility of showing or not showing dot files. If we are not showing dot
files in UNIX, then we should not descend into any directory whose name
starts with a dot. (In fact, this issue had never been addressed before,
but now it's fixed.) ckufio.c, 7 Jan 99.
Commented out the check against summarizing directories in DIR /HEADING
/RECURSIVE, since directory files are now shown. ckuus6.c, 7 Jan 99.
Checked "send /recursive", and of course it was broken, since gnfile() never
expected to be fed a directory by znext(). We'd have the same problem in K95.
Added a check to gnfile() to skip over directory files; recursive sends seem
to be working again. ckcfns.c, 7 Jan 99.
Discovered that "send ." no longer recursed. Did it ever? ckermit2.txt
is contradictory on this, so I fixed it by removing any claims that "send ."
implied /RECURSIVE. ckermit2.txt, 7 Jan 99.
"send /recursive ." now dies with a parse error when the current directory
happens to contain at least one subdirectory, and the first file returned when
expanding "." happens to be a directory file. I patched this in both cmifi()
and zxpand(); the former by checking the global recursive flag (yuk) and the
latter by simply translating "." to "*". This works OK, but "send /recursive
.." still doesn't work, even though "send .." does. Well, there's no end to
this, so the clever thing to do is to have zxpand() call xfnqfp() on its
argument up front. This nicely takes care any kind of crazy path (like
.././../baz/../../foo.bar) that the user could dream up, not to mention
tildes, etc. But that would be too easy.
In fact, "send /recursive .." actually DOES work. The problem is the same as
with putting zfnqfp() into zxpand(), or for that matter, specifying a full
pathname or a pathname starting with tilde in combination with /RECURSIVE,
namely that splitpath and traverse go through the ENTIRE FILE SYSTEM, file by
file, which can take hours and in any case grinds the disk to dust. This is
independent of today's change to make zxpand() return directory files; the
same thing would have happened any time since we added SEND /RECURSIVE, and
indeed it happens with 6.1 Beta.05 from last May: "send /recursive ~/tmp/*"
does the trick quite nicely in /usr/local/bin/wermit.
Hacking away at this, I managed to more or less fix it but some glitches
remain. First of all, the parsing of "." and ".." etc stopped working again.
But now I can put back zfnqfp() in zxpand() and all's well, except now we
always get fully qualified names rather than relative ones, so I had to back
off on that one for now. Another problem is that "dir /recursive <dirname>"
only shows directories, not files, in any directory that is subordinate to the
one named in the command. OK, close... Will finish this tomorrow.
ckufio.c, 7 Jan 99.
Fixed lingering problems in UNIX wildcard expansion. ckufio.c, 8 Jan 99.
Changed zxpand to append path separator to any directory names it returns.
ckufio.c. 8 Jan 99.
Since we don't know whether all implementations of zxpand() will return
directory names with separator appended, high-level code that does this in
various places (e.g. filhelp(), cmifi2()) still does it, but only if it was
not done already. ckucmd.c, 8 Jan 99.
Added DIRECTORY /FILES (to show only regular files) /DIRECTORIES (to show only
directories) and /ALL (default, to show files and directories). ckuusr.h,
ckuus6.c, ckermit2.txt. 8 Jan 99.
Changed SWITCH to evaluate case labels with zzstring() and then use ckmatch()
on them rather than strcmp(). Now we can have shell-like switch statements
with variables/functions/patterns as cases. ckuus6.c, ckermit2.txt, 8 Jan 99.
Still have lots of details to clean up, will do them next week.
From Jeff: The Telnet Negotiation delay mechanism has been redesigned once
again. The requirement is not that WILL/DO negotiations can't be sent before
encryption is active, just that none of the subnegotiation data be sent before
the encryption is in place. So now there is a method to delay sending
subnegotiation data until after START_TLS, AUTH, and ENCRYPT are complete.
This means that we send all WILL/DO messages other than ENCRYPT before waiting
for the AUTH response. If AUTH is refused we are done and there should be
almost no delay when connecting at the expense of more complex code. And
since the NAWS is now sent to the telnetd before "login" is started it works
the first time and the SIGWINCH is not generated in the subprocess which
interrupts the "Password:" read attempt. Also, it seems that I never added
the DO case for TELOPT_SNDLOC. We would have negotiated SNDLOC but never sent
the subnegotiation. So that is now fixed. (End quote) ckctel.[ch],
11 Jan 99.
Also from Jeff: typo in krbmit entry fixed, makefile, plus some K95-specific
stuff: ckuus[27].c, 11 Jan 99.
Updated HP-UX entries from Peter Eichhorn, 11 Jan 99.
The "Negotiations... (OK)" message was coming out twice, which is annoying
especially now that Telnet connections are so much quicker. There did not
seem to be any easy way to consolidate the two messages, so instead I added
some code so they would print only upon a negotiation timeout. So this speeds
up the connection even more (I didn't touch the spinner code, but it probably
could use the same treatment). ckctel.c, 11 Jan 99.
Made the UNIX DIRECTORY command handle symlinks. Of course this depends on
the nonportable lstat() function, so another pile of #ifdefs in ckcdeb.h, and
then some additional #ifdef'd code in domydir(). Now we get permissions,
date, size, and name of the symlink, plus a "->" pointer to the linked-to
file. To do this as efficiently as possible, I made zgetfs() have some side
effects: since it's calling (l)stat() anyway, it also gets the link info, and
also sets a flag saying whether the file is a directory. But we only take
advantage of this in the DIRECTORY command where it can't do any harm.
Of course, Yet Another Global Flag (diractive) had to be used to indicate to
the low-level routines (zfcdat(), zgperm(), ziperm(), etc) whether to call
stat() or lstat(), since we only want to call it for DIRECTORY commands, not
file transfer, etc. Yuk. ckcdeb.h, ckufio.c, ckuus6.c, 11 Jan 99.
As of yesterday, "dir <anypath>/*/filename" didn't work. Similarly for "dir
<anypath>/*/*/filename", etc. Fixed in traverse(), ckufio.c, 12 Jan 99.
"directory /recursive blah" (where "blah" is a filename, or in fact any
pattern other than "*") doesn't work -- as far as I can tell, it never did.
This should list all occurences of "blah" in the current (or given) directory
tree, at any and all levels at which it occurs. After several more hours of
pounding on traverse() I got this working too. ckufio.c, 12 Jan 99.
But now "dir /recursive" shows dotfiles even when it shouldn't. Fixed that
too. But every fix breaks something else. So now DIR /DIR * doesn't work any
more. Fixed that. But now DIR /RECURSIVE /DIR lists each directory twice.
Attempts to fix that broke everything else. I hate this routine. Finally
after more fixing, all of the following work:
dir
dir /files
dir /directories
dir /recursive
dir /recursive /files
dir /recursive /directories
dir oofa.txt
dir /recursive oofa.txt
dir /recursive *.txt
dir *.txt
dir */*.txt
dir */*/*.txt
dir .*
dir /recursive .*
dir /dotfiles
dir /dotfiles /recursive
dir foo (where "foo" is a directory name)
dir .
dir ..
Obviously there are many more combinations, but these are the only ones
that affect which files are shown and which ones aren't. Also checked:
ffiles(*)
frfiles(*)
fdirectories(*)
frdirectories(*)
These work too, with both SET WILD KERMIT /MATCH-DOT and /NO-MATCH-DOT.
But then there was some new trouble matching dotfiles in certain contexts, for
example "dir {{*,.*}}" or "dir [.abc]". Made a minor correction to ckmatch()
for this. ckclib.c, 12 Jan 99.
Updated HELP IF text. ckuus2.c, 12 Jan 99.
Changed TRANSMIT in the text / prompt 0 / pause 0 / echo off case to send
1K buffers rather than lines. Speeds up transmission by about 35% in this
case. Didn't bother with binary mode since nobody uses it anyway, and the
changes for that are a bit harder. ckuus4.c, 13 Jan 99.
Updated HELP DIR, HELP SWITCH, HELP SET FILE, and HELP WILDCARD text.
ckuus2.c, 13 Jan 99.
Got tired of hunting for things in the SHOW FEATURES compiler options list,
so changed SHOW FEATURES to sort them. Also fixed the paging, which had
drifted a bit with new additions. ckuus5.c, 13 Jan 99.
Added DIR /[NO]XFERMODE. If /XFERMODE is included, the directory listing
shows the transfer that would be used for each based on the current patterns.
If none is shown, then the filename doesn't match any patterns. This seems
like a useful addition to a Kermit directory listing. ckuusr.h, ckuus6.c,
13 Jan 99.
Added DIR /[NO]BACKUP. If /NOBACKUP is included, backup files (*.~*~) are
not shown. ckuusr.h, ckuus6.c, 13 Jan 99.
Added SEND /NOBACKUP. If /NOBACKUP is included, backup files are not sent.
ckuusr.[ch], ckuusx.c, ckcfns.c, 13 Jan 99.
Added SET SEND BACKUP { ON, OFF } to establish the global setting that SEND
/NOBACkUP would override (SET RECEIVE BACKUP too, for symmetry, but it does
nothing - just prints a message). Added SET SEND BACKUP status to SHOW
PROTOCOL. ckuusr.h, ckuus[47].c, 13 Jan 99.
Updated docs and help text. ckermit2.txt, ckuus2.c, 13 Jan 99.
TRANSMIT was not always sending its last buffer in text mode. I don't think
it ever did. Fixed in ckuus4.c, 14 Jan 99.
Changed nzltor() (local-to-remote filename converter) to (a) replace space by
underscore rather than X, (b) replace tilde by hyphen rather than X, and (c)
translate non-ASCII chars to ASCII. The latter works effectively if the file
character-set has been properly set; otherwise it's no worse than before (this
does not address the larger question of proper translation of filenames).
Converted filenames are now much more readable, especially backup files:
foo.bar.~3~ becomes FOO_BAR.-3- rather than FOO.BARX3X, and accented letters
lose their accents rather than coming across (in most cases) as box-drawing
characters, etc. ckufio.c, 14 Jan 99.
Trials show that the time to sort a directory listing is imperceptible, at
least compared with the time to read the directory, so I made /SORT:NAME the
default except in VMS, where directory names are returned in alphabetical
order anyway. I did not do this for server-generated directory listings --
that is a much bigger project, deferred til next time. ckuus6.c, 14 Jan 99.
Updates to Minix 2.0 support from Terry McConnell, Syracuse U, ckcdeb.h,
ck[tu]fio.c, makefile, 14 Jan 99.
Lots of #ifdef adjustments, casts, etc, for building different configurations,
many modules, 14 Jan 99.
winchh() and sw_armed were used in ckctel.c but unknown to them. I thought I
could move them from ckcnet.c to ckctel.c, but that didn't work, so I left
them in ckcnet and extern'd them from ckctel. Builds OK, but NAWS operation
needs to be checked.
Somebody did something to utmp.h in Linux recently which makes it impossible
for any application that includes that file to have variables, functions, or
macros called local, screen, telnet, rlogin, xterm, rsh, ftp, unknown, or X
(see "enum utlogin"). Swell. (This was noticed in mklinux, but not in the
Intel version -- same kernel number; double swell.) There was no good way to
avoid the conflict, so (a) I renamed our screen() routine to ckscreen(), along
with all references to it. (b) was harder, since there are about 1000
occurrences of the string "local" in the C-Kermit source, some of them
embedded in other strings (e.g. "localtime()") or in comments or text); I
wasn't about to change all of them at the last minute. Adding -Dlocal=cklocal
doesn't help either; enums are "too powerful". The obvious solution was to
build for Linux with -DNOWTMP, but that would eliminate some prominent
convenience items, not to mention IKSD logging. Because of the utter
stupidity of the C language, there was no way to #include <utmp.h> and avoid
these conflicts, so finally I just hardwired the needed definitions from
utmp.h and utmpbits.h into ckufio.c. YUK!!! 14 Jan 99.
The new TELOPT macros defined in ckctel.h were too complex for some compilers
(preprocessors) to handle so Jeff added a -DNOTOMACROS switch and accompanying
code to allow their replacement by compiled functions. Also, a correction
from Jeff to logstr(). ckctel.[ch], ckuusx.c, 14 Jan 99.
Discovered the base Solaris entry had not been converted from ckucon to ckcns.
Fixed in makefile, 14 Jan 99.
hpux500wintcp -- try with xermit.
look for prototype for inet_ntoa() in hpux headers.
aos kermit got a stack dump / traceback because free() was called from
close() which was called (on the tty) from _exit. Hmmm -- not Kermit's
problem.
--- Beta.03 ---
Corrections from Jeff to IKS negotiations: ckctel, ckcnet, ckuus4, ckcpro;
plus some character-set fixes: ckouni, 17 Jan 99.
Moved extern int nnets outside of #indef NODIAL so -DNODIAL builds would work.
ckuus7.c, 17 Jan 99.
Added missing "Solaris 7 implies Solaris 2.6" clause to ckcdeb.h, 17 Jan 99.
Some shuffling of #ifdefs in an attempt to fix broken compilation on Sinix
5.43 and Pyramid. Generalized the "gettimeofday takes one arg instead of two"
business, instead of making it specific to Motorola SV88R4. ckutio.c,
17 Jan 99.
Removed iks_wait() call that was in the middle of REMOTE command parsing.
No actions should occur until after cmcfm(). This was making "(OK)" messages
appear in the middle of typing any REMOTE command. ckuus7.c, 17 Jan 99.
Some #ifdef juggling for HP-UX 10.01 to eliminate compiler warnings about
select() and localtime(). ckutio.c, 18 Jan 99.
From Jeff: Some additional changes for VOS; expanded TELOPT command;
various modules, 18 Jan 99.
New TELOPT command options are "ao", "ayt", "break", "cancel", "ec", "el",
"eof", "eor", "ga", "ip", "dmark", "do", "dont", "nop", "sb", "se", "susp",
"will", "wont". This lets us send any Telnet command at all; e.g. as a probe
to see if the connection is up (e.g. NOP). (I changed some of the return
codes; pls check.) ckuusr.c, 18 Jan 99.
Tested this a bit, using TELOPT NOP or TELOPT DMARK as a probe. If I kill
the remote process, these still succeed, even if I wait a while first. The
second one fails. Seems strange -- how do we document this? "To see if the
server is still there, use "telopt nop, telopt nop, if success ..."
Refined the "Negotiations....(OK)" suppression code a bit. Much better now,
but still not perfect. More later... ckctel.c, 18 Jan 99.
Got access to an SCO 3.2V4.2 system and made necessary adjustments to get
successful builds, mainly #including <sys/time.h> and linking with -lsocket
so we can use gettimeofday for the high-precision timers, etc. I'm not sure
if no-net systems can run a binary that is linked with -lsocket, but let's
hope so... Converted these entries to xermit, since we can use select().
makefile, cku[ft]io.c, ckuver.h, 19 Jan 99.
Added sco32v4ns entry to build a version that does not use the sockets
library, select(), or gettimeofday(), just for safety. Also, this was a good
verification that -DNOGFTIMER still does its job. makefile, 19 Jan 99.
Took all the -DNOSETBUF's out of the makefile and just set it in ckcdeb.h.
(I thought I had done this before...) makefile, 19 Jan 99.
Fixed IKSD not to refuse to send a file just because client does not have
TERM AUTODOWLOAD ON. ckcpro.w, 19 Jan 99.
Some changes from Jeff for K95 keyboard settings. ckuusr.h, ckuus7.c,
19 Jan 99.
From Jeff, 20 Jan 99:
. Fix bug in CLEAR INPUT: ckuusr.c.
. Help text for SET TERM DG-UNIX-MODE: ckuus2.c.
. Added table of DEC keyboard (terminal) languages + parsing: ckuus7.c.
Fixed some bad notation in the IRIX 6.4 entry (-OPT:Olimit=3000 should have
been -Olimit 3000; the former notation is not used until IRIX 6.5, silly me).
makefile, 20 Jan 99.
Added "-b elf" to SCO 5.0.4 and .5 non-gcc entries to avoid making COFF
binaries (which is bad because...?). makefile, 20 Jan 99.
Added HPUX6 and HPUX7 symbols to the appropriate makefile entries, since all
the other HPUX's had their own. Added custom banners for HPUX 6 and 7. Added
code to the network module to include <arpa/inet.h> for all HPUX except 7 to
pick up the inet_ntoa() prototype (7 is excluded because it does not seem to
have this header file, even though all the others do). makefile, ckuver.h,
ckcnet.c, 20 Jan 99. (Builds OK with previous warnings gone on HPUX 9 and 10.)
(Later confirmation received on HPUX 6 and 7.)
NOSPL builds were failing due to unguarded references to mjd() in the
connection log writer. Changed ckcdeb.h to set NOLOGDIAL if NOSPL was set.
20 Jan 99.
Fixed some typos in ckermit2.txt. 20 Jan 99.
Added code to display READ.ME file from current directory at startup if
srvcdmsg != 0 (mainly for iksd). ckuus5.c, 20 Jan 99.
Should TERM AUTODOWNLOAD be ON by default in C-Kermit (as it is in K-95)?
. No, because the book says it isn't.
. No, because C-Kermit is very likely to be in middle.
But then what about when it is a client of IKSD? In that case it should be
ON so SEND from the IKSD prompt will always work. But then if it's in the
middle, we'll still have trouble if the local Kermit also has it on.
So what are the choices?
. Leave it alone. But this makes IKSD look bad.
. Make it on by default? Causes confusion when C-Kermit in the middle.
. Turn it on automatically when client of IKSD? (Save & restore)
Well, yes, obviously we want it on when we're a client of IKSD. That's not
the question -- the question is what do we do about the other, more local,
Kermit that might also have it on? There's nothing we CAN do, so don't worry
about it. Ideally, then, we would change SET TERM AUTODOWNLOAD { ON, OFF }
to { ON, OFF, AUTO }, with AUTO being the new default, meaning "enable
autodownload automatically if I make a connection to an IKSD". And I started
to do it that way, but ran into conflicts with K95, which has a different and
conflicting set of keywords, plus it was not obvious where the automatic
switching should be done, nor where to undo it when the connection is broken
or some other negotiation would change the rules. So I simply made the
default be ON for all C-Kermits as well as K95. It's a lot easier to explain
this way, and in fact the book goes into some detail about it in several
places. ckcmai.c, 20 Jan 99.
Changed SET FLOW AUTO to always SET FLOW NONE when making a direct serial
connection, rather than setting it to RTS/CTS just because we know we can.
The latter turned out to be a bad idea because a direct connection is very
likely not to be giving us the CTS signal (or even have a wire for it), so any
attempt to write will just hang. setflow(): ckuus3.c, 20 Jan 99.
Changed "kermit -l" to also call setflow(), so we get consistent behavior
with command-line and interactive device opening and i/o. ckuusy.c, 20 Jan 99.
SINIX 5.43 changed gettimeofday() to have one arg instead of two. Added
appropriate #ifdefs to ckutio.c, defines to the makefile entry, and a
designer herald in ckuver.h. 20 Jan 99.
Added -DSELECT -DNOGETUSERSHELL to pyrdcosx entry. makefile, 20 Jan 99.
Fixed some long lines in ckuus2.c, 20 Jan 99.
Changed BSDI product name from BSD/386 to BSD/OS, to reflect current usage
since the 1.1 release. makefile, ckuver.h, 20 Jan 99.
Lots of changes from Jeff to get rid of non-CKOUNI possibility in K95.
Many modules, 20 Jan 99.
Bug: "xif 1 { input 10 ), echo Thanks: [v(input)] }" produces garbage because
the ")" caused the enclosing "flit()" (which is used internally by XIF and
friends to prevent premature evaluation of its command blocks) to terminate
early. Fixed in litcmd() by quoting any unbalanced right parentheses. Also
added a destination length argument to litcmd() to prevent memory leaks. Also
removed some really obnoxious debug() calls from litcmd(). ckuusr.h,
ckuus[56].c, 21 Jan 99.
Changed ODT 3.0 makefile entry not to contain an underscore, since these don't
show up when underlined (e.g. in Web links). makefile, 21 Jan 99.
Stripped out some obsolete comments from ckuus4.c, 21 Jan 99.
Added a note about new TELOPT operands and cleaned up some typos in
ckermit2.txt, 21 Jan 99.
Fixed the "Negotations... (OK)" message again. The idea is: don't print
"Negotiations" unless we get a timeout from tn_wait(). Once we get a timeout
and print "Negotiations", then print "." every second till the wait is up,
then print "(OK)". Don't print dots or "(OK)" if we didn't print
"Negotiations". Don't print "(OK)" twice. AND... only do this upon initial
connection, not during the session. This way, most people will never see
this message; it will only appear when the connection is taking a long time,
to let them know Kermit isn't dead. ckctel.c, 21 Jan 99.
Moved lower() to ckclib, and renamed it to cklower(). ckucmd.c, ckuus5.c,
ckclib.[ch], 21 Jan 99.
Got rid of xindex() and replaced all references to it by references to
ckstrchr(), which is in ckclib. ckufio.c, 21 Jan 99.
New HP-UX makefile entries from Peter Eichhorn; updated "+/-/?" notations in
comments at the top for C-K 7.0. makefile, 25 Jan 99.
Some compilers have started to choke on "too many defines" in ckuusr.h. Put
large blocks of K95-specific defines in #ifdef OS2..#endif, Telnet-specific
defines in #ifdef TNCODE..#endif, etc. ckuusr.h, ckuus2.c, 25 Jan 99.
From Jeff: TELNET /PASSWORD:<pswd>, SET HOST /PASSWORD:<pswd>, for SRP enabled
versions of C-kermit. To allow scripted operation of SRP connections. Still
need to figure out how to allow users to call SET LOGIN PASSWORD <pwd> in K95
without the <pwd> being provided in an encrypted form. But for now, SET LOGIN
PASSWORD will set a flag in K95 indicating that is where the password came
from so we know whether or not to decrypt it in ckuath.c Also, added support
for Preauthenticated Kerberos IV Ticket Getting Tickets, AUTH K4 INIT
/PREAUTH. This provides an added layer of security by requiring that the
user's password be used to encrypt the ticket getting ticket request. By
configuring the server to require pre-auth ticket requests it becomes nearly
impossible for an unauthorized user to request a TGT. Unfortunately, this
does not work in K95 because Leash does not include the necessary
functionality. It does work in C-Kermit. ckcnet.c, ckcmai.c, ckuus7.c,
ckuus3.c, ckuath.h, ckuusx.c, ckuusr.c, ckuath.c, 25 Jan 99.
Looking at recursive transfers in VMS...
. SEND /RECURSIVE actually works as it should, as long as it's given the
a filespec containing "...". The code is already there to accept the
switch and set SEND PATHNAMES to RELATIVE automatically, and the files
are indeed sent with relative pathnames.
. GET /RECURSIVE did not set RECEIVE PATHNAMES RELATIVE, so I fixed that.
ckuus6.c, 26 Jan 99.
. I considered inserting "..." into the filespec, but that would be going
overboard, plus how would it work in the middle of a parse, e.g. when "?"
was typed in the filename, etc. Also, not all filespecs lend themselves to
this, e.g. in "define foo [somedir], send /recursive foo:*.*" there is no
place to put the "..." ("foo:[...]*.*" doesn't work).
The /RECURSIVE switch for GET was in #ifdef RECURSIVE. That was wrong -- the
client should be able to send this request to the server, even if the client
itself does not support recursive transfers. The #ifdef was removed. And for
symmetry, I added RECEIVE /RECURSIVE, which simply sets RECEIVE PATHNAMES to
RELATIVE. ckuus6.c, ckermit2.txt, 26 Jan 99.
Discovered that when C-Kermit receives a file that has the same name as an
existing file into a directory that has many thousands of files (and FILE
COLLISION is BACKUP or RENAME), it can take a loooong time to make the backup
file name, since Kermit has to read the whole directory to find out which, if
any, backup files already exist. The delay might be as long as 10-20 seconds,
even a full minute. But C-Kermit 6.0 takes hardly any time at all in the same
directory. Is it because of the new pattern matcher (ckmatch() instead of
match())? Putting back match() makes it take even longer. traverse() is the
culprit: it's now calling isdir() on every single file, which turns out to be
a surprisingly expensive call. A little thought revealed it was OK to skip
the call to isdir() in the nonrecursive case, since higher-level code will
take care of filtering out unwanted directory files. ckufio.c, 26 Jan 99.
Back to VMS... Compilation of ckuusr.c blows up due to new #ifdefs in
ckuusr.h; it is now necessary to #include ckcnet.h before ckuusr.h, rather
than after, so the various TCP-related symbols will be defined before they are
referenced in #ifdefs in ckuusr.h. ckuusr.c, 26 Jan 99.
Next problem: GET /RECURSIVE, when sent to a VMS server, always results in
"Receive window full", even though it works fine with a UNIX server. Why?
Once again, spurious #ifdef RECURSIVE..#endif around the supporting code.
#ifdefs removed and the command now works. ckcpro.w, 26 Jan 99.
Except that it's sending the pathnames in VMS format rather than standard
(UNIX) format. Why? Because the client said to (K95 has FILE NAMES LITERAL
by default). This is a problem because what is a non-VMS client going to do
with VMS-format directory names? Unfortunately, the "fncnv" (filename
conversion) flag is overloaded in this case: we might want to leave the file
names unconverted but still need to convert the directory path syntax. This
doesn't affect UNIX (even though it has the same bug) because its path syntax
is the same as the standard one. To work around the problem for VMS only, I
made an additional check in nzltor(), so now we convert the path syntax if
FILE NAMES are CONVERTED *or* if the system ID of the other Kermit is not "D7"
(the VMS system ID). ckvfio.c, 26 Jan 99.
Additional SNI stuff from Jeff for K95. ckuusr.h, ckuus7.c, 26 Jan 99.
Minor SNI and help-text changes from Jeff. ckuus[27].c, 28 Jan 99.
Added horizontal text lines to mark entry to and exit from CONNECT mode (when
not quiet). These are done only in the CONNECT modules, not in the mainline
code, since terminal-emulating versions should not do this. Also the lines
are not printed if QUIET is set or during APC transitions. ckucns.c,
ck[duv]con.c, 28 Jan 99.
If XFER DISPLAY is FULLSCREEN but terminal type is not recognized, fall back
to CRT display, rather than SERIAL. ckuusx.c, 28 Jan 99.
Added missing help text for SET SEND BACKUP. ckuus2.c, 28 Jan 99.
"send /recursive ." doesn't work any more, even though "send ." does. "send
/recursive .." doesn't work any more, even though "send .." does. "send
/recursive /full/path/name" has gone back to trying to read the entire file
system. Sounds familiar? This was all fixed on Jan 7th, but then broken
again some time before Jan 14th. Fixed again today. ckufio.c, 28 Jan 99.
Now all the tests from Jan 12th work except "dir /recursive oofa.txt", which
fails to recurse. One more tiny tweak fixes this and now all tests work
again. ckufio.c, 28 Jan 99.
Fixed SET OPTIONS DIRECTORY /NOBACKUP, which wasn't working due to a typo.
ckuus6.c, 28 Jan 99.
Changed the server end of REMOTE DIRECTORY to obey SET OPTIONS DIRECTORY
/[NO]HEADING, /[NO]DOTFILES, and /[NO]BACKUP. In UNIX only, sorted the
directory by name (because in UNIX, we have access to the list pointer).
ckcfns.c, ckermit2.txt, 28 Jan 99.
Fixed server end of REMOTE DIRECTORY to be compatible with local directory
listing format -- no more "<DIR>" in UNIX, show symlinks, don't always
show full pathname (but do show it in headings). ckcfns.c, 29 Jan 99.
Changed date-time string shown in directory listings when actual date/time
can't be obtained from ????-??-?? ??:??:?? to 0000-00-00 00:00:00, so as
not to put non-digits in numeric fields. ckcfns.c, ckuus6.c, 29 Jan 99.
"remote directory | sort -r" was sending "| sort -r" as the filespec
to the server, oops. However, "remote directory | sort -r > foo" works as
expected. This was a bug in remtxt(), fixed in ckuus7.c, 29 Jan 99. Now we
can pipe incoming directory listings through local filters for display on
the screen, e.g. to sort in reverse chronological order, etc. Documented
this in ckermit2.txt Section 5.3.2.
The C-Kermit server drops a character from the directory listing at the end of
each packet, as you can easily see by restricting the packet length to (say)
30 (it's not quite so obvious when the packet length is 8000). But it's not
nxtdir()'s fault, because nxtdir() returns every character from the listing.
In fact, sdata() is being called with a length that is 1 less than the actual
number of characters obtained from nxdir(). This problem has nothing to do
with recent changes to REMOTE DIRECTORY since REMOTE TYPE has the same
problem, and also REMOTE DELETE, REMOTE HELP, and any other command
implemented by sndblah()/nxtblah(). In fact, it's been there for quite some
time. But it doesn't happen in regular file transfer, so what's the
difference? ... Aha, it's in getpkt() -- the manipulation of the "first" flag
(governing lookahead and EOF) was not totally copied from the input-from-file
case to the input-from-function and other cases. Fixed in getpkt(), ckcfns.c,
29 Jan 99.
From Jeff: Command interface for KLOGIN and EKLOGIN:
RLOGIN /ENCRYPT /KERBEROS <host> <userid> <protocol>.
ckuusr.h ckuus5.c ckuus7.c ckcnet.h ckcnet.c, 29 Jan 99.
Found some places where the connection log was not being written, namely
in the TELNET and RLOGIN commands. Fixed in ckuus[3r].c, 29 Jan 99.
The confusion between CLOSE CONNECTION and CLOSE CONNECTION-LOG was just too
dangerous, so even though it's ugly, I changed the name of the connection log
to "CX log": LOG CX, CLOSE CX[-LOG]. ckuus[r2].c, 29 Jan 99.
From Jeff: Internal Telnet reset function. ckctel.[ch], ckcnet.c, 30 Jan 99.
Due to a typo, the key in DIR /SORT:key was sticky. Fixed in domydir(),
ckuus6.c, 30 Jan 99.
Discovered that IKSD could be suspended with SUSPEND or Z command (but not
with Ctrl-Z). SUSPEND/Z also worked when nopush was in effect. Fixed in
ckuusr.c, 30 Jan 99.
Discovered that if you gave a DIRECTORY command to IKSD in a directory that
can't be read, it would say "?Read permission denied - xxx" where xxx was
a filename. Changed cmifi() to not show the filename under these conditions.
ckucmd.c, 30 Jan 99.
PRINT command given by IKSD guest gave the wrong error message. ckuusr.c,
30 Jan 99.
RECEIVE, given by IKSD guest in directory to which it does not have write
access works when it shouldn't. But then of course it stops when it goes to
write out the first bufferful -- the file is not actually created. But now
there is about 32K of packets in the pipeline, and all sorts of confusion
ensues, especially when streaming. Fixed rcvfil() to precheck write
accessibility before accepting the file. ckcfns.c, 30 Jan 99.
MOVE, SEND /MOVE, etc, were allowed by IKSD to guest users; they did indeed
send the file, but did not delete it. Still, it should not give the
impression that it worked, so a check was added. ckuusr.c, 30 Jan 99.
Horizontal-line printing was needed to move to left margin first when
returning from CONNECT mode due to autodownload or APC. ckucns.c, ck[uv]con.c,
30 Jan 99.
Traverse() test:
dir
dir /files
dir /directories
dir /recursive
dir /recursive /files
dir /recursive /directories
dir oofa.txt
dir /recursive oofa.txt
dir /recursive *.txt
dir *.txt
dir */*.txt
dir */*/*.txt
dir .*
dir /recursive .*
dir /dotfiles
dir /dotfiles /recursive
dir foo (where "foo" is a relative directory name)
dir .
dir ..
dir /fullpathname (of a directory)
dir /fullpathname (of a file)
dir /fullpathname (of filename with wildcards)
dir /fullpathname (with wildcards in path)
dir /files /fullpathname
dir /directories /fullpathname
All the above work. The following still try to read the entire file
system. Will fix in next Beta:
dir /recursive /fullpathname (of a directory)
dir /recursive /fullpathname (of a file)
dir /recursive /fullpathname (of filename with wildcards)
dir /recursive /fullpathname (with wildcards in path)
dir /recursive /files /fullpathname
dir /recursive /directories /fullpathname
Add -funsigned-char to sunos41gcc and solaris25g makefile entries. makefile,
30 Jan 99.
Numerous #ifdef, syntax, and declaration adjustments when building on many
platforms with different options sets. Many modules, 30-31 Jan 99.
initopts() was dumping core on some platforms -- char pointers not init'd
to NULL before calling makestr() on them. ckuus5.c, 31 Jan 99.
--- Beta.04 ---
From Jeff: command interface for RLOGIN /K4 /K5 /ENCRYPT; rlogin (except for
window size) is working again on Unix; rlogin /k4 (except for window size) is
now working on Unix (no root required). ckuusr.h ckuus7.c ckuus5.c ckcnet.c
ckcnet.h ckctel.c ckctel.h ckuath.h ckuat2.h ckuath.c ck_crp.c, 1 Feb 99.
Server side remote directory file lister didn't have enough %s's in format
string for non-perms case. ckcfns.c, 1 Feb 99.
Fixed some long lines in ckuus2.c, 1 Feb 99.
The HP-UX 5.00 Wollongong TCP/IP build suddenly stopped working because
of complaints about inet_addr(), e.g.
"ckcnet.c", line 3411: operands of = have incompatible types
where line 3411 is:
saddr.sin_addr.s_addr = inet_addr(tcp_address);
inet_addr() can NEVER NEVER NEVER be used without including the #ifdef INADDRX
code around it. Evidently a lot of calls to inet_addr() were added since
Beta.02, which is the last time I built on this system. This means that
builds that use INADDRX won't work. Unfortunately this is the only platform I
have access to that needs it, and it can be accessed only by special
arrangement, since it is normally kept turned off, and every compilation takes
several hours. Fixed in ckcnet.c, 2 Feb 99. Fortunately this is not a
show-stopper for Beta.04, since only very old UNIX versions need this, like
Integrated Solutions Inc V8S VME 68020 and Motorola Delta System V/68 R3V5.
Added an hpux500 makefile entry (no net). 2 Feb 99.
Although ckutio.c does not reference bzero(), somehow it is being referenced
from the generated object file (nm ckutio.o | grep bzero) in HPUX 5.00.
So I added a bzero stub to ckutio.c only for HPUX 5.00, only for the no-net
build. 2 Feb 99. (Later it turned out that a macro defines memcpy or memset
as bzero somewhere...)
Removed references to INADDRX for DG/UX from makefile and ckcnet.h. 2 Feb 99.
More from Jeff on Kerberized Rlogin. ckcnet.[ch], ckuus[47], etc, 2 Feb 99.
From Jeff: Fix a bug in which return value of ckgetpeer() was not checked for
NULL when writing wtmp record, causing IKSD to crash when accessed by a host
that could not be found in DNS. And fix ckgetpeer() itself to return the
peer's IP address if it can't get the name. ckufio.c, ckcnet.c, 4 Feb 99.
Fix from Jeff for draining problem. ckcfn2.c, ckctel.c, 6 Feb 99.
For some weeks now there has been a problem with the VMS UCX version: when
sending files on a TCP/IP connection with streaming, the transfer gets stuck
after sending the EOF (Z) packet; the Z packet is sent OK, but C-Kermit never
reads the ACK. Ctrl-C'ing out and CONNECTing back reveals the ACK still
sitting there waiting to be read. And yet: (a) This does not happen in
non-UCX VMS versions or in UNIX versions; (b) it does not happen in the UCX
version when the debug log is turned on. The problem was traced to netinc();
it seemed that once select() failed, it would never succeed again. Jeff
guessed that a failing select() in UCX (and who knows where else) might alter
its parameters ("help cc socket_routines select" was uninformative), and that
moving the select() initialization (FD_ZERO(), FD_SET() into the for-loop
would fix the problem, and indeed that seems to have done the trick.
ckcnet.c, 7 Feb 99.
UNIX C-Kermit was failing to send the first byte of each file (or actually,
the first byte of each 32K bufferful read from disk) due to a typo in a debug
statement I added to zinfill() after Beta.04 was released. Fixed in ckufio.c,
7 Feb 99.
From Lucas Hart: Fixed osf makefile entry to pass CC and CC2 values along,
and add a du40gcc tarket. makefile, 7 Feb 99.
Fixed various minor syntactic warnings from gcc on DU 4.0. ckcfn2.c,
ckuus[rx].c, 7 Feb 99.
Another mysterious problem... After releasing Beta.04, I finally was able to
build on AIX 4.1, but discovered that it had suddenly and for no apparent
reason started exhibiting the "terminal buffering reset after using curses"
problem, so that characters typed at the prompt would not echo until Return
was pressed, even though concb() had been been called to put the console back
in CBREAK mode. This did not happen on earlier C-Kermit builds on AIX 4.1,
nor does it happen in the current build on AIX 4.2 or 4.3, nor, as far as I
can tell, on any other platform either. The classic remedy to this problem is
to use newterm() rather than initscr() to initialize curses, accomplished by
adding -DCK_NEWTERM to the makefile entry. This seems to have fixed the
problem. I wonder if this means the same should be done in later AIX
versions, even though we presently have no adverse symptoms. makefile,
8 Feb 99.
Jeff pointed out that the server does not set the success flag internally
when it executes a command that generates a short-form response. Fixed in
ckcpro.w, 8 Feb 99.
IKSD was improperly calling syscmd() to check disk space (of course, it didn't
work, but it was acting like it did -- returning an empty report rather than
an error). Unfortunately, there is no good way to internalize disk-space
checking code in UNIX since the methods for doing so are COMPLETELY unportable
(and unreliable), so I made the server return an appropriate error when given
a REMOTE SPACE command and nopush is effective. ckcpro.w, 8 Feb 99.
There were a few lingering problems with directory-tree recursion. As noted
above, "dir /recursive /xxx", where /xxx was any full path (i.e. starting with
slash), would appear to hang because it was reading the whole file system.
Also "dir /recursive .." did not work at all. Also "dir /recursive ." gave
incomplete results. These were fixed by slightly altering the decision about
whether to recurse in UNIX traverse(), without breaking anything else, except
"dir /recursive blah" (where blah is a filename with no wildcards); this was
fixed by adding one more condition to the same decision. Now we seem to pass
all tests. ckufio.c, 8 Feb 99.
Changed sinix543 makefile target to sni543, and added sni544. SNI says the
name SINIX was dropped after 5.42 in favor of Reliant UNIX. makefile,
ckuver.h, 8 Feb 99.
Added Ctrl-Z (and ^Z+0x80) to SET PREFIXING CAUTIOUS to accommodate
connections to UNIX hosts that have old versions of C-Kermit that don't know
how to disable SIGTSTOP. ckcmai.c, 8 Feb 99.
v(lockdir) lopped off the final character of the directory name on some
systems (e.g. Linux) but not others. Fixed in nvlook(), ckuus4.c, 8 Feb 99.
Fixed ckutio.c (again) to use the right #ifdef around gettimeofday().
9 Feb 99.
Removed -K option from sni54[34] entries, where it is no longer valid.
makefile, 9 Feb 99.
Fixed local SPACE command to error out if nopush and an external command or
program is required. ckuusr.c, 9 Feb 99.
Added -DK_NEWTERM to the Linux target, in response to a rash of complaints
about loss of CBREAK mode on tty after curses display. Did NOT add this to
the AIX 4.2 and 4.3 entries, even though it was suddenly necessary for 4.1,
since trials on 4.2 and 4.3 show that it completely hangs the program.
makefile, 9 Feb 99.
From Jeff: Preserve user ID and Password around failed SET HOST, TELNET,
and RLOGIN parses. ckuus7.c, 9 Feb 99.
Another correction for #ifdefs around gettimeofday(). ckutio.c, 10 Feb 99.
Built for the first time on VMS 7.2, and with UCX 5.0, and with TGV 4.2A, and
with DECC 6.0, and miraculously no source changes were needed. 10 Feb 99.
Changes from Jeff for Windows-95-specific SET WIN95 items and help text,
including new SET WIN95 8.3-FILENAMES { ON, OFF }. ckuusr.h, ckuus[27].c,
10 Feb 99.
Added some casts to suppress warnings about pointers not assignment compatible
(signed vs unsigned char). ckcfn2.c, ckcnet.c, 10 Feb 99.
Folded long lines in ckuath.c, 10 Feb 99.
Added a missing #ifndef NOSERVER..#endif clause to some code in ckcfn3.c.
10 Feb 99.
Simplified UNIX traverse() to eliminate some redundant function calls.
ckufio.c, 10 Feb 99.
Spent some more time with UNIX traverse() to see why it's skipping some files
it should pick up in some cases, but made little progress. To be continued.
ckufio.c, 10 Feb 99.
Fixes for DG/UX: add declaration for tv, tz to ckutio.c; add NOGETUSERSHELL
and CK_NEWTERM to, and remove CK_POLL from, makefile entries. 11 Feb 99.
Verified that SINIX 5.42 does not need CK_NEWTERM. 11 Feb 99.
Mark Berryman said that "u_int" errors go away in UCX 5.0 builds if you
#include <if.h>. This works great in UCX 5.0, but UCX 2.0 has no <if.h>.
There is also a warning about the data type of the length argument to
getpeername. It needs to be unsigned int in UCX 5.0, but signed in previous
versions. We need to (a) find a UCX-5.0-unique symbol in the UCX header
files, or (b) a logical name or symbol we can pick up in the DCL build
procedure, or (c) create a new build target or somesuch. 11 Feb 99.
Back to UNIX traverse. After yesterday's changes, we now pass all tests with
the following exceptions:
1. "dir /recu <filename>" shows directory names as well names of files
that match <filename>, which might or might not be wild.
2. "dir /recu /tmp" skips most files and directories in /tmp.
This last one is quite odd, since the same commands work fine in other
directories on the testbed system. What's different about /tmp?
Added zrewind() to ckufio.c. Rationale: DIRECTORY calls cmifi(), which
calls zxpand to expand the file list. If this succeeds, then DIRECTORY itself
calls zxpand again. But as long as the same argument and criteria are used
each time, the second call should be unnecessary -- all we need to do is
use the list from the first time, which is still there. zrewind() resets the
list pointer to the beginning and returns the count. Obviously this is for
UNIX only, since other implementations do not necessarily create an internal
list. But when it can be used, it cuts the time in half -- quite noticeable
in long directories. ckuus[56].c, ckufio.c, 11 Feb 99.
And of course it also makes debugging easier since we only have one invocation
of zxpand to deal with... OK, so back to traverse....
Hmmm... traverse() knows whether a file is a directory when it calls
addresult() to put it on the list. But then addresult() calls isdir() again
to find out if its argument a directory. Added a second parameter to
addresult() to let the caller tell it in advance whether it's a directory, or
if it must be looked up. This eliminates lots of redundant stat() calls and
speeds things up even more. After this, and after cleaning up traverse() line
by line, it all seems to work except for a couple minor glitches that I can
clean up tomorrow. ckufio.c, 11 Feb 99.
With hints from Mark Berryman, added autodetection of UCX 5.0 to CKVKER.COM;
if detected, it adds UCX50 to CFLAGS. The issue here is that <if.h> must be
included in UCX 5.0 to pick up the definition of u_int (and who knows what
else), but it does not exist in earlier releases. Corresponding #ifdefs in
the code take care of the special considerations in the modules. Now C-Kermit
builds without complaint and without any special CKVKER.COM command-line
invocation on UXC 2.0, 4.0, and 5.0 as well as on TGV 4.0. ckvker.com,
ckcnet.[ch], ckuus[45].c, 12 Feb 99.
Fixed the following problem noticed by Jeff: if protocol is XMODEM, then
RECEIVE /PROTO:KERMIT gives an error if an as-name was not specified.
doxget(), ckuus6.c, 12 Feb 99.
Changed the name of zrewind() to zxrewind() to make it look more like a friend
of zxpand() and not an analog of rewind(), which resets a file pointer, and
which we might want to add later for some reason. Added a symbol that says
whether we can use it, ZXREWIND, and defined it for K95 and UNIX, since Jeff
added it for K95. Changed all calls to zxrewind() to be in #ifdef
ZXREWIND..#endif. ckcdeb.h, ckufio.c, ckuus[56].c, ckcplm.txt, 12 Feb 99.
In several spots in cmifi(), zxpand() was called a second time to rewind the
file list; replaced these calls with zxrewind(). ckucmd.c, 12 Feb 99.
Ditto in the spot in fneval() where zxpand() was called to rewind the list
in K95. ckuus4.c, 12 Feb 99.
Corrections from Jeff to yesterday's changes, plus new IF AVAILABLE options
for encryption, SSL, SRP, NTLM, etc, plus a couple =='s that should should've
been ='s. Changed AVAIL_blah to AV_blah since macros must be unique within 8
chars in some cpp's. ckcpro.w, ckucmd.c, ckuus[26].c, 13 Feb 99.
Some debug() statements fixed by Lucas Hart, especially one in a VMS section
of domydir() that referenced a pointer that had not yet been init'd. ckuus6.c,
13 Feb 99.
From Lucas Hart: fix for VMS isdir() to recognize a search list as a directory
so (e.g.) "cd sys$manager" can work. ckvfio.c, 13 Feb 99.
Added zxrewind() for VMS. ckcdeb.h (define ZXREWIND for VMS), ckvfio.c,
13 Feb 99.
Hit upon an idea to make /RECURSIVE work for VMS: in fgen(), before the
lib$find_file() loop, call zfnqfp() to get the full filespec including
directory brackets, then insert "..." before the closing bracket IF (a)
"recursive" was set, (b) the argument filespec did not already contain "...",
and (c) there actually was a closing directory bracket. Checked first to see
if LIB$FIND_FILE() itself had an option for recursive searching; it doesn't.
This fully enables SEND /RECURSIVE and DIR /RECURSIVE, plus GET /RECURSIVE
when send to a VMS C-Kermit server, without the user having to include "..."
in filespecs, and eliminates lots of "buts" and "excepts" in the documentaion.
ckcdeb.h (define RECURSIVE for VMS), ckvfio.c, ckermit2.txt, 13 Feb 99.
"dir blah" in VMS did nothing if BLAH.DIR;1 is a directory. It should do the
same as "dir [.blah]". Cause: failure to reset fcount in zxrewind; fixed in
ckvfio.c and ckufio.c, 13 Feb 99.
Lucas said that in VMS, "dir foo.dir" should just list the FOO.DIR file,
rather than the files in [.FOO], as it currently does. Whereas (I think) "dir
foo" and "dir [.foo]" should list the contents of the directory rather than
the directory file itself, as they do now, and as "dir foo" (where foo is a
directory name) does in UNIX and K95. Added code to cmifi() to make this
distinction. Now "dir [/recursive] foo.dir" (or *.dir, etc) lists directory
files; the others list contents. The FOO.DIR -> [.FOO] conversion is skipped
only when the DIRECTORY command is active, because we need this conversion
at other times. ckucmd.c, ckermit2.txt, 13 Feb 99.
On a similar note, there is no way in UNIX to obtain the "ls -d" behavior,
i.e. to list a specified directory file, rather than the files in the
directory. We'll return to this later...
Back to UNIX traverse()... "dir /recursive oofa.txt" lists not only all
oofa.txt files in the current directory tree, but also each directory that
contains an oofa.txt file; example:
(/w/fdc/tree/) C-Kermit>dir /rec oofa.txt
drwxrwx--- 512 1999-01-28 16:53:59 subdir/another/ <--
-rw-rw---- 6067 1999-01-07 21:21:43 subdir/another/oofa.txt
-rw-rw---- 3537 1999-01-12 18:07:46 subdir/oofa.txt
drwxrwx--- 512 1999-01-12 20:18:15 subdir/thisdir/ <--
-rw-rw---- 6067 1999-01-12 16:00:42 subdir/thisdir/oofa.txt
-rw-rw---- 2192 1999-01-13 11:03:14 oofa.txt
(/w/fdc/tree/) C-Kermit>
It should only list the files themselves; the entries marked by arrows should
not appear. Of course, including the /FILES switch produces the desired
result. Also, "dir /rec *.txt" does not show this problem. So that means
it only happens when the original filespec was wild. So don't add a directory
name to the list when recursing if the original filespec was not wild.
ckufio.c, 13 Feb 99.
Next: directories whose names start with "." should not be opened if matchdot
is 0 and if the "." was not specified in the user's pattern. Fixed by adding
another test to traverse(). ckufio.c, 13 Feb 99.
Next: "dir /recursive */*.txt" lists all files in the current directory, even
if they don't match "*.txt", but correctly selects only *.txt files in lower
directories. Changed a comparison. ckufio.c, 13 Feb 99.
Next: "dir .*" doesn't list dotfiles anymore unless /DOTFILES included. Added
another test. ckufio.c, 13 Feb 99.
Now UNIX C-Kermit passes all "traverse.txt" tests in its local DIR command.
After yesterday's changes, plain old "dir" in VMS acted recursively due to
missing parens in a while condition; fixed in cmifi(). ckucmd.c, 14 Feb 99.
Now the VMS version passes all tests.
Changed VMS zgetfs() to call stat() to get file size and directory status,
since it can succeed where RMS fails, e.g. when permissions don't allow
opening. This removes lots of nasty -1's from the directory listing.
However, permissions are still lost when the file can't be opened. ckvfio.c,
ckcfns.c, ckuus6.c, 14 Feb 99.
UNIX C-Kermit server's directory listings sent to client did not handle
symlinks. Fixed in nxtdir(). ckucmd.c, 14 Feb 99.
Minor updates from Nigel Roles for Plan 9. ckucmd.h, ckufio.c, ckpker.mk,
14 Feb 99.
Jeff renamed os2_setflow() to ttsetflow(). ckudia.c, ckuus6.c, 15 Feb 99.
Updated HELP SET NETWORK text. ckuus2.c, 15 Feb 99.
Faced up to the fact the having a single variable for flow control is an idea
whose time is past. Added a connection-type switch for SET FLOW, so now SET
FLOW can take an optional switch (/REMOTE, /TCPIP, /MODEM, etc) to set the
default flow control for a particular type of connection without affecting the
others. Added a flow control table with appropriate flow values for each type
of connection. Added SHOW FLOW to show the table plus the current flow
control. Got rid of SET FLOW AUTO, since now it's meaningless (the command is
still accepted, but does nothing). Now you can flip around among different
kinds of connections and get the right kind of flow control without thinking
about it (usually). NOTE: At first I thought the best default for remote mode
would be KEEP, but that doesn't work at all when coming in via Telnet -- it
totally wrecks file transfer. So for now, at least, it's NONE. ckcdeb.h,
ckuusr.h, ckcmai.c, ckuus*.c, ckermit2.txt, 15 Feb 99.
Setting SIGINT and SIGQUIT to SIG_IGN was left out of the ckucon-to-ckucns
transition. It didn't matter in most cases, since ttvt() puts the console
into raw mode, but in HP-UX, the HP-9000 <RESET> key still raises SIGINT,
which under these conditions kills C-Kermit when hit twice. So the
appropriate signal() calls were added to conect() after the ttvt() call.
ckucns.c, 15 Feb 99.
Added SHOW TRANSFER (XFER) to SHOW all the SET TRANSFER items. ckuusr.h,
ckuus4.c, 15 Feb 99.
Filled in new and missing SET TRANSFER items in HELP SET TRANSFER text.
ckuus2.c, 15 Feb 99.
Added missing zxrewind() prototype to ckcdeb.h. 15 Feb 99.
Noticed that if I give a TYPE command at the IKSD> prompt, and the file
contains any 0xff bytes, these are sent bare, thus forming a random Telnet
command for the client Changed the TYPE command to double 0xff characters if
(sstelnet || inserver). ckuus6.c, 15 Feb 99. There are probably other places
where this could happen...
Added a tgetent() stub for VOS. ckuusx.c, 15 Feb 99.
In VMS, we use zrelname() to reduce a fully qualified filespec to a relative
one, to save space in the directory listing. Thus if my current directory is
D0:[FDC] and I say "dir [fdc.text]oofa.txt", it will print "[.TEXT]OOFA.TXT"
instead of "DISK0:[FDC.TEXT]OOFA.TXT". However, if my current directory is
[FDC.TEXT] and I say "dir [-]login.com", it prints "[.TEXT]LOGIN.COM" instead
of "[FDC]LOGIN.COM" or "[-]LOGIN.COM". So zrelname() was fixed to take into
account the case where the current directory is a subdirectory (one or more
levels down) of the file's directory, in which case it prints [-] or [--],
etc, for the file's directory. ckvfio.c, 15 Feb 99.
From Jeff: some #ifdef adjustments to prevent undefined auth/crypt symbols:
ckuus6.c; some auth/crypt changes to ckcnet.c and ckuath.c; debugging
statements added to ckcfn2.c packet/checksum routines. 16 Feb 99.
From Jeff: initialize lots of automatic variables in functions all over the
place. Many modules, 16 Feb 99.
Back to zrelname() in VMS. There were some glitches, plus it did not handle
the case where the file directory is not a subdirectory of the current
directory, nor vice versa, but the two shared a common ancestor. ckvfio.c,
16 Feb 99.
Various (CHAR *) / (char *) casts. ckcfns.c, ckcnet.c, 17 Feb 99.
The "dironly" and "fileonly" hacks have become unbearable. A piece of code
such as domydir() can set or unset them prior to calling (say) zxpand() or
cmifi(), but loses control the minute the called routine does the same, or
calls some other routine that might do the same. So I added a new API:
nzxpand(s,flags), which is zxpand() with a second argument: flags == 1 means
files only; 2 means directories only; anything else (normally 0 or 3) means
files and directories. I brutally expunged all references to the dironly and
fileonly variables from all files, and replaced all zxpand() calls in the
mainline code with nzxpand() (this won't break weird platforms -- see
ckcdeb.h). I think everything will work much better now. ck[duv]fio.c,
ckvfio.c, ckucmd.c, ckuus6.c, ckcdeb.h, ckcplm.txt, 17 Feb 99.
Some corrections from Jeff to yesterday's changes. ckcdeb.h, ckuusy.c,
ckufio.c, 18 Feb 99.
Added zrewind() for AOS/VS. ckcdeb.h, ckdfio.c, 18 Feb 99.
Changed nzxpand() to be totally parameter-driven; flags word now contains
flags for dironly, fileonly, matchdot, recursive, etc. ckcdeb.h, ckcfns.c,
ckcpro.w, ck[duv]fio.c, ckucmd.c, ckuus[46y].c, 18 Feb 99.
Added NOXFER symbol, which, if defined, deselects all file-transfer code
(Kermit and XYZMODEM) at compile time. This is for building C-Kermit strictly
as a scripting and communications engine, when memory is at a premium, e.g. in
Linux-based embedded systems. -DNOXFER removes about 300K on Intel, 400K on
Sparc. All modules changed with very few exceptions. Built OK with and
without -DNOXFER on UNIX and VMS. Added a "linuxso" target for building a
< 400K version that includes full scripting and serial communications, but
no networks, help, character-sets, etc, that would not be used in a typical
embedded application. 18 Feb 99.
Added autodetection of <if.h> to CKVKER.COM for picking up u_int in UCX
versions below 5.0. 19 Feb 99.
A user noted a limit of 1024 on array size -- this was a totally arbitrary
and needless restriction, so I removed it. Now an array can be any size
at all (until and unless a malloc() fails). ckuusr.c, 21 Feb 99.
Changed UNIX version to not set BRKINT -- I have no idea why it ever did.
This causes big problems with UNIX workstations that have a BREAK key,
especially if it is badly positioned (as on HP keyboards, where users hit it
accidentally while trying to type Esc). ckutio.c, 21 Feb 99.
UNIX "send ./?" was listing dot files when it shouldn't. Fixed in traverse().
ckufio.c, 21 Feb 99.
Fixed some more CHAR/char complaints. ckuus6.c, 22 Feb 99.
CD command makes disk spin if <ESC> typed in the middle of a directory name,
whereas Beta.04 didn't do this. This is because traverse now calls isdir() on
every file. Fixed this by calling isdir() only when we know we have to.
traverse(), ckufio.c, 22 Feb 99.
Discovered that SEND /RECURSIVE *to* C-Kermit no longer works: zchko() says
access denied. I'm not sure how or when this happened, but the problem was
that when we check writeability of nonexistent paths, access() fails. zchko()
needed to be changed to peel back path segments until we reached one that
existed before calling access on it. (If we can create a file in an existing
directory, then we can also create a directory, and in fact a whole tree.)
ckufio.c, 22 Feb 99.
Discovered that the following sequence:
cd subdir, dir .., cd .., dir /recu /dir .
gives a bizarre listing. It turns out that cmifi() skipped calling nzxpand()
in this case, and so zxrewind gave us the list from *previous* call, which is
of course no longer valid in the new context, so zgetfs() and friends all
fail. Fixed in cmifi2() by ensuring it ALWAYS calls nzxpand() (at least when
diractive is nonzero). ckucmd.c, 22 Feb 99.
Discovered that "dir /recursive /tmp/fdc/foo" (i.e. a full absolute path
containing no wildcards) takes forever because traverse reads the whole file
system. Of course this was fixed several times before, but then subsequent
fixes (specifically, for "dir /recursive foo.bar" -- same thing, but path
NOT absolute) broke it. Fixed in traverse(), ckufio.c, 22 Feb 99. The
/RECURSIVE switch is ignored in this case, which makes C-Kermit do the same
thing as "ls -lR /tmp/fdc/foo".
Peter Eichhorn tested yesterday's code in a directory that contained 10,000
files: "ck abc<ESC>" still took forever and made the disk spin a lot. It
turns out the change I made yesterday also needed to be made in another place.
Now it's fast again. ckufio.c, 23 Feb 99.
Added -DNOTTYLOCK to AIX 3.x targets, since ttylock() evidently does not work
right there (the code compiles OK but says "access to lock denied", even
though it has all the same perms and owner/group as cu, whereas if built to
use do-it-yourself lockfile handling, it works OK). makefile, 23 Feb 99.
Problem: We have (say) a UNIX-to-UNIX connection with all defaults,
client/server. We say "get blah.txt". The file is sent in text mode because
of the "*.txt" pattern, but the transfer is interrupted. So then later we say
"reget blah.txt". This is refused because the "*.txt" pattern puts it into
text mode again and REGET must be in binary mode. Two problems:
1. The file did not have to be sent in text mode in the first place if
C-Kermit had recognized that the connection was between "like systems"
AND character-set translation was not active. In this case, we can skip
looking thru the patterns and just stick with binary mode.
2. [RE]GET /BINARY did not work when the filename matched a text pattern on
the server side. Fixing this required defining a new transfer-mode
WHATAMI bit for the initialization string, but since the WHATAMI field was
already full, a new WHATAMI2 field was added. Now GET /BINARY, REGET
/BINARY, GET /TEXT, etc, always work exactly as expected. ckcker.h,
ckcpro.w, ckcfns.c, ckuus[r6].c, ckermit2.txt, 24 Feb 99.
These (and the next two) are rather fundamental changes and need a pretty
heavy workout.
Made RESEND and SEND /RECOVER both imply /BINARY since they won't work any
other way. ckuusr.c, ckermit2.txt, 24 Feb 99.
Ditto for REGET and GET /RECOVER. This, in turn, forces manual transfer mode
at the server, and now even "reget oofa.txt" will work, at least assuming
client and server have compatible (i.e. non-length-changing) text-file
formats. ckuus6.c, ckermit2.txt, 24 Feb 99.
Added SEND /[NO]DOTFILES. ckuusr.h, ckuus[r2].c, ckermit2.txt, 24 Feb 99.
Discovered SHOW FILE wasn't working right. Diagnosis: feol was declared as
extern int rather than extern CHAR. Fixed in ckuus4.c, 24 Feb 99.
Added dynixptx216c target to makefile, from Roger Allen. 24 Feb 99.
Made "cop" be an OK abbreviation for "copy". ckuusr.c, 24 Feb 99.
Changes from Jeff for K95G. ckuus[7x].c, 24 Feb 99.
Updated sunos41gcc+krb and +srp makefile entries from Jeff. 25 Feb 99.
The CD Message was fractured in IKSD -- forgot to add a terminating NUL at
the end of the string when making the IAC-doubled copy. ckuus6.c, 25 Feb 99.
Promptly removed the aforementioned code because it really belongs in the
printf (puts, putc, etc) substitute that we are already using for server-side
telnet and IKSD. ckuus6.c, 25 Feb 99.
From Jeff, 25 Feb 99:
. IAC doubling added to ckxprintf() and ckxfprintf(). ckcdeb.h, ckutio.c.
. Check for stdout/stderr in ckxfprintf(). ckutio.c.
. Removed commented-out IAC doubling from dotype(). ckuus6.c.
. Moved allocation of keymap/macro from cmdini() to before sysinit() for
the benefit of K95G which starts being delivered keyboard input during
sysinit(). ckcmai.c, ckuus5.c.
Added encryption indication to SHOW CONNECTION. ckuus3.c, 25 Feb 99.
Peter E reported that transfers between two Kermit programs failed when there
was an Rlogin command between them and C-Kermit 7.0 was the file sender, but
such transfers did not fail in earlier releases. Diagnosis: C-Kermit 7.0
unprefixes <LF> by default; if a packet contains "<LF>~." this breaks the
Rlogin connection. Packets contain this sequence when a file has a line that
begins with 14 repeated characters. Since Kermit has no way of knowing there
is an Rlogin command in the middle, we have to prefix LF by default.
ckcmai.c, 25 Feb 99. (Ditto when 'cu' is in the middle.)
Peter E also noticed that C-Kermit would crash under certain conditions on
some versions of HP-UX when its debug log was active during file transfer. It
looks like the debug(F011,...) handler did not allocate quite enough memory
when given a really long string (like 32K). Fixed in dodebug(), ckuusx.c.
Also, the "debug(F011,"ZINFILL fread",zinbuffer,zincnt);" call was overkill
anyway since now we're reading 32K chunks from the disk. Changed it to just
show the count; ckufio.c, 25 Feb 99.
Minor syntactic corrections to yesterday's changes. ckuus3.c, ckutio.c,
26 Feb 99.
Changed C-Kermit's default file type from text to binary. ckcmai.c,
ckermit2.txt (Sections 0, 4, and 4.3), 26 Feb 99.
Renamed hpux90mot target to hpux90m68ko for consistency. "-funsigned-char"
added to CFLAGS of all HP-UX gcc targets. makefile, 26 Feb 99.
When making SEND /RECOVER imply /BINARY, I accidentally also made
SEND /RECURSIVE imply /BINARY. Fixed in doxsend(), ckuusr.c, 26 Feb 99.
Back to client/server conveniences... Client SEND /RECURSIVE does not
automatically SET RECEIVE PATHNAMES RELATIVE in the server, but GET /RECURSIVE
does. Why is this? Because GET /RECURSIVE uses a special packet type but
SEND /RECURSIVE does not. The user should not have to deal with this. Added
PATH_AUTO to ckcker.h. Added SET RECEIVE PATHNAMES AUTO: ckuus7.c. Made AUTO
be the RECEIVE PATHNAMES default: ckcmai.c. Fixed SHOW FILE to display the
new value: ckuus4.c. Defined a WMI2_RECU bit for the new WHATAMI2 field:
ckcker.h. Set this bit in rpar() if recursive > 0, and set RECEIVE PATHNAMES
to RELATIVE automatically in spar() if RECEIVE PATHNAMES was AUTO, plus set a
flag this was done so AUTO would be restored at the end of the transaction or
upon interruption: ckcfns.c, ckuus[25x].c, ckermit2.txt, 26 Feb 99.
Fix to cmifi() from Jeff to make sure it calls nzxpand() in K95 even if
user gives only a disk letter. ckucmd.c, 26 Feb 99.
Fixes from Jeff to DIR /ENGLISHDATE and Rlogin problems reported by Lucas
Hart. ckuus[67].c, 28 Feb 99.
Jeff suggested we keep incomplete files only when receiving in binary mode.
Added [ REMOTE ] SET [ FILE ] INCOMPLETE AUTO, which means KEEP when in binary
mode, DISCARD otherwise. ckuus[2346].c, ckcfn[s3].c, ckcmai.c, ckcpro.w,
ckermit2.txt, 28 Feb 99.
The change I made on 24 Feb to use binary mode whenever the two Kermits are
on like platforms and there was no charset translation was broken by setting
the default file type to binary. Fixed in sfile(): ckcfns.c, 28 Feb 99.
Added /MOVE-TO: and /RENAME-TO: switches, which were already available for
SEND, to GET and RECEIVE. This rounds out our "atomic file movement"
repertoire. ckcmai.c, ckuus[56x].c, ckcfns.c, 28 Feb 99.
Numerous corrections to internal crossrefs in ckermit2.txt from Peter E.
28 Feb 99.
Got rid of the long and hideous mass of #ifdefs around the tv and tz
declarations in ckutio.c by adding NOTIMEZONE / HAVE_TZ and NOTIMEVAL /
HAVE_TV symbols to ckcdeb.h. 1 Mar 99.
Moved call to fxdinit() (fullscreen file-transfer display initialization) from
main() to screen(), and ensured we don't call it unless we have to, we don't
execute it more than once, and we don't print any error messages when in
background or batch. This fixes numerous problems; e.g. the screen was a
total shambles before if the terminal type was unknown, pointless warnings
about terminal type when the file transfer display would not have been
fullscreen anyway, etc. ckcmai.c, ckuusx.c, 1 Mar 99.
Added -DDCLGETCWD to CFLAGS for is5r3jc. makefile, 1 Mar 99.
Fixed arrangement of horizontal lines around file transfer and around
CONNECT-mode help text. ckucns.c, ck[duv]con.c, 1 Mar 99.
Updated SHOW FEATURES list to say "No making connections" if NOLOCAL defined,
and fixed some typos. ckuus5.c, 1 Mar 99.
Fixed an unguarded reference to tcharset in ckcfns.c, 1 Mar 99.
Updated help text for RECEIVE and GET, plus help text for new K95 Kverbs from
Jeff. ckuus2.c, 1 Mar 99.
"send blah", where blah is a file that lacks read permission, did not produce
an error message. Fixed in ckuusr.c, 1 Mar 99.
Changed {SEND,RECEIVE,GET} {/MOVE-TO:,/RENAME-TO:} to save and restore global
values snd_move, snd_rename, rcv_move, rcv_rename values. ckuus[r56x].c,
1 Mar 99.
Added global {SEND,RECEIVE} {/MOVE-TO:,/RENAME-TO:} values to SHOW FILE,
and finally added askmore() to SHOW FILE, yuk. ckuus4.c, 1 Mar 99.
Added SET { SEND, RECEIVE } { MOVE-TO:, RENAME-TO: } to set global values
for these. ckuus[27].c, 1 Mar 99.
Changes to SHOW DIAL for TAPI and SET WIN95 OVERLAPPED-IO from Jeff.
ckuus[47].c, 1 Mar 99.
Updated HP-UX 10.30 and 11.00 targets from John Bigg of HP: makefile, 2 Mar 99.
Yesterday's change broke the SET TRANSFER DISPLAY command. Fixed in ckcmai.c,
ckuus[7x].c, ckcker.h, 2 Mar 99.
Fixed SET TRANSFER DISPLAY SERIAL to wrap dots based on actual terminal width
rather than assuming 80. ckuusx.c, 2 Mar 99.
SEND /NOBACKUP was broken by a missing comment closer. ckuusr.c, 2 Mar 99.
Ditto for GET /DELETE. ckuus6.c, 2 Mar 99.
"type /?" bad news -- since its FDB had file first and switch second, "/?"
tried to build a list of all files in the root directory. Rearranged to have
switch first, file second, like all the other commands. ckuusr.c, 2 Mar 99.
Fixed an unguarded reference to pipesend. ckcfns.c, 2 Mar 99.
Started work on PURGE command (to remove all but a given number of backup
files). Will finish tomorrow. ckuusr.[ch], ckuus7.c, 2 Mar 99.
Added ^D and ^U to default prefixing table, since these act like LF when
followed by ~ when going through an Rlogin connection. ckcmai.c, 3 Mar 99.
Syntax corrections. ckuus[27x].c, ckvcon.c, 3 Mar 99.
It seems that streaming transfers are sensitive to "X" interruption if it
happens in a certain spot -- just at the beginning and/or just at the end.
Found and fixed a spot in input() that might have been causing this (no,
it didn't fix it). ckcfn2.c, 3 Mar 99.
filhelp() was calling isdir() on every file. This is no longer necessary,
since the parsing function that called it has already filtered out file and/or
directory names by calling nzxpand() with the appropriate flags. Commented
out this call to isdir(). ckucmd.c, 3 Mar 99.
SEND /RECURSIVE ./?<Ctrl-U> left recursive flag stuck on. Moved the resetting
of recursive and matchdot to the top of the reparse loop, rather than the top
of the parse loop. ckuus5.c, 3 Mar 99.
Sending to IKSD, logged in as anonymous, was failing with "directory creation
failure" even when sending a regular file not containing any directory parts
in its name. The problem was in zmkdir(), but I can't imagine why we weren't
seeing the same failures before (and we weren't -- lots of people were
uploading stuff to incoming thru IKSD). zmkdir() is always called when
receiving a file to see if the file contains any directory parts, and if so,
to try to create them. zmkdir() unconditionally failed if called by guest.
Fixed it to fail only when called by guest AND it would have had to create a
directory. ckufio.c, 3 Mar 99.
Meanwhile, zmkdir() actually *would* create directories even when in server
mode and MKDIR was DISABLEd, oops. Fixed in zmkdir(), ckufio.c, 3 Mar 99.
An SSH-related update to ckcnet.c from Jeff. 3 Mar 99.
Discovered that dialing out from VMS (yes, I can finally do it!) tends not
to work at all. Why? VMS does not support RTS/CTS but the modem's factory
default is to use RTS/CTS. The modem init string might have 30-40 characters
in it, or more (e.g. USR). VMS gets data overruns on its serial port when
reading back the echo and then loses the OK, because it has not yet sent the
command to the modem that tells it to use local Xon/Xoff flow control. SET
DIAL PACING 150 does the trick. Changed the startup value for DIAL PACING to
be 150 if CK_RTSCTS is not defined, and changed the initial DIAL FLOW value
to be XON/XOFF for VMS, rather than AUTO (although AUTO actually did result
in Xon/Xoff, but why bother). ckudia.c, 5 Mar 99.
Made default flow control in VMS for all types of connections it supports be
"Xon/Xoff" (which really translates to TTSYNC/HOSTSYNC, which means "use an
appropriate method of flow control instead of dropping incoming bytes on the
floor for no reason"). ckcmai.c, 5 Mar 99.
With these changes, VMS dialouts work -- a little rocky on the initial init
string, but once the flow control is set on both ends, the connection is fine;
downloads go fast, but uploads are faster. There are no hiccups or glitches,
even at 38400 or 57600 bps on the Alpha PWS 433/au.
Fixed some silly dialing messages, like "Will redial in 1 second, press any
key to redial immediately...". ckuus6.c, 5 Mar 99.
Fixed "red" to be an acceptable synonym for REDIAL on VMS. ckuusr.c, 5 Mar 99.
Discovered all kinds of problems dialing without flow control -- SET DIAL
PACING was not being obeyed in many places. Fixed in ckudia.c, 6 Mar 99.
When dialing out from VMS and then being hung up on by the remote, VMS system
services would thenceforth refuse to return the modem signals, and so ttchk()
returned 0 or -1 (indicating ttgmdm() failure) rather than -2 to indicate the
connection was lost, and therefore EXIT would give the message "A serial
connection might be active... OK to exit?". Fixed by keeping Yet Another
Global Status Variable. ckvtio.c, 6 Mar 99.
The long modem setup sequence was unnecessary and annoying when redialing,
so now we jump around on the 2nd and subsequent attempts. ckudia.c, 6 Mar 99.
Got rid of the separate ATT or ATP command when the user had not given a SET
MODEM COMMAND { PULSE, DIAL } or a SET MODEL DIAL-COMMAND command, making the
dial command be ATDT or ATDP instead. ckudia.c, 6 Mar 99.
Enabled connection log in VMS. ckvfio.c, 6 Mar 99.
VMS was still complaining "terminal type not supported" when given a SET
TRANSFER DISPLAY FULL command. Fixed in doxdis(): ckuus7.c, 6 Mar 99.
Filename shown in VMS file transfer display is much too long. Changed
screen() to call zrelname() on it. ckuusx.c, 6 Mar 99.
The sequence DISABLE DELETE, SET FILE COLLISION UPDATE would fail because of
a misplaced security check. The check was moved into the protocol module
where it belongs. ckuus7.c, ckcpro.w, 6 Mar 99.
Removed about 560 lines of #ifdef OLDTBCODE..#endif junk from ckudia.c. If
anybody ever wants it back they can get it from version 6.0. 6 Mar 99.
The big problem with dialing without hardware flow control is that the first
thing we send to the modem is a big long init string, like:
ATQ0E1V1X4&A3&S0&C1&D2&N0&Y3S14=0
The modem can take it, but the computer might not be able to absorb the echo
(or worse, the response), especially at high speeds. So it's essential to set
up the flow control first, before sending any long strings to the modem. But
this requires that the modem is first set up to produce result codes. So --
for AT-command-set modems only -- we now send ATQ0<CR> first, up to four
times, looking for an "OK" or "0" response, and taking various (increasingly
drastic measures) if it doesn't come (send BREAK, hangup, etc), and then we
set the modem's flow control, and THEN we send the init string and the rest.
This works way better. ckudia.c, 6 Mar 99.
Added SET HINTS { ON, OFF }. ckuusr.[ch], ckuus3.c, 6 Mar 99.
Since control-char unprefixing is now the default, this is likely to cause
trouble to some people. If sending a file fails and PREFIXING is not ALL,
and the transfer was not deliberately interrupted, we now print a hint (if
HINTS are ON) to try it again with SET PREFIXING ALL (or PARITY SPACE, or
ROBUST, ...) -- our first hint. Made a similar set of hints for failure to
RECEIVE or GET files. And a few others. ckuus[r345].c, 6 Mar 99.
SET PREFIXING ALL sets prefixing to PX_ALL; now so does SET CONTROL PREFIX ALL.
ckuus3.c, 6 Mar 99.
-- add hints for dial failure.
Corrections from Michal Jaegermann <michal@ellpspace.math.ualberta.ca>:
. One of the sprintf's in nxtdir() did not have enough %s's: ckuus4.c.
. An sprintf in v(nday) referenced a long with %d: ckuus4.c.
. Missing parens around 4th xxscreen() arg supplied in ckuusx.c & ckcfn2.c.
. Superfluous pointer dereference (*p++;) in arraynam: ckuus5.c.
. ckxlogin/out() prototypes moved from ckuusr.h to ckcdeb.h.
. ckxlogin() called with one too few args: ckcpro.w.
. Various static declarations of unused or nonexistent variables or functions.
Also, he objected to Kermit sending the user ID ahead on TELNET connections --
"There is not a shred of guarantee that a login on remote will be the same as
a local one" -- and suggested the default be not to send it. This will
obviously be controversial, but I tend to agree, erring on the side of safety
and predictability (for scripts). For now I just made a symbol NOSENDUID that
can be added to CFLAGS to reverse the default at compile time. A more
intelligent default might be to send the ID if we're on the same "network"
(whatever that is), and not send it otherwise. Or maybe not. ckcdeb.h,
ckctel.c, 7 Mar 99.
Tightened up dialing procedures some more -- e.g. combined the speaker and
volume commands. Found that my abbreviated redialing code from yesterday had
(more than) a few problems. The most important lesson is that it's not
sufficient to just keep sending the ATDTnnnnn command. First we have make
sure the modem is still sentient; thus the "send ATQ0" loop must be executed
before each redial as well as before the original call. ckudia.c, 7 Mar 99.
My understanding of the VMS terminal driver is that if the device has the
TT$M_MODEM characteristic, then:
1. When the application opens the device, VMS turns on DTR.
2. The CD signal is ignored until it comes up; after that, loss of
CD causes the SS$_HANGUP error.
After 6 hours of experimentation with dialing and redialing on VMS, I made two
discoveries: (1) attempts to read from a /MODEM device during dialing
(i.e. before CD has ever been turned on) often result in SS$_HANGUP, and so
this error must be ignored during dialing; and (2) VMS periodically blinks DTR
and RTS on the device while it is not presenting the CD signal; Kermit is not
doing this, VMS is doing it. This can be observed simply by telling Kermit
to "set line tta0" and then watching the modem lights for a few minutes.
This of course causes any normal modem to immediately abandon a call in
progress. The remote answers the phone, we hear the negotiation tones going
and then suddenly "click" and NO CARRIER. ATI6 (to a USR Courier) says
"Disconnect reason: DTR dropped". The modem lights confirm -- VMS turns off
DTR (and RTS) for 5 seconds right in the middle of the modem-to-modem
negotiations. The only reason dialing out ever works at all is that DTR stays
up for 30 seconds at time. If a call is placed at just the right instant and
is answered within 30 seconds, VMS leaves DTR on thereafter.
Of course we can give the modem the DTR override command (AT&D0), but this
eliminates the possibility of hanging up the call by dropping DTR, and in fact
would leave open a rather gaping security hole.
A workaround was eventually identified: Tell the modem to make DSR track CD.
Explanation: when a port is opened, as soon as VMS sees DSR with no CD, it
starts the 30-second-on/5-second-off DTR/RTS blinking cycle. Therefore if the
modem does not turn DSR on, and VMS won't blink. This is less than satisfying,
though, because it is exactly opposite of (say) SunOS, where you can't dial
out unless DSR is ON. There should be a way to tell VMS to leave DTR up solid
when making a dialout call. Init strings of all AT-command-set modems changed
to include "&S1" within #ifdef VMS..#endif. This is no help at all for modems
that are do not use the AT command set. ckudia.c, 7 Mar 99.
David Sanderson <dws@sgi.net> noticed that window-size-change interrupts
weren't working any more; cause: <signal.h> was left out of the ckcnet/ckctel
split. Fixed in ckctel.c, 7 Mar 99.
From Jeff, 8 Mar 99:
. ckutio.c - ttinc() returning -3 is a special return value that
indicates that the "Session Limit" has expired. SET SESSION-LIMIT. I
do not think that this has been implemented in Unix or VMS yet. I
have changed all references to -3 in ttinc() to -4.
. ckuath.c - lots of rlogin stuff.
. ckcdeb.h - Some NT Kerberos defines and the new NOSENDUID cannot be
defined if CK_AUTHENTICATION is defined since the UID is required for
successful completion.
. ckcnet.c - k5 rlogin and some other little things.
Fixed SHOW COMM for VMS to show the actual speed rather than "unknown" and
also not to write "(closed)" after the device name. The source of confusion
was that CK_TTYFD is defined for VMS, but instead of referencing the ttyfd
variable (which is always -1 in VMS) we have to call the vmsttyfd() function.
ckuus4.c, 8 Mar 99.
Verified that it is indeed IMpossible to get the current speed of a serial
device in VMS. The IO$_SENSEMODE() call returns the permanent speed, not the
current, actual one. Added notes to the code about this so I don't waste
another half-day on this one. ckvtio.c, 8 Mar 99.
Added -DNOREDIRECT to all SCO targets prior to 3.2v4.0. makefile, 8 Mar 99.
Made transaction log unbuffered. ckufio.c, 8 Mar 99.
Fixed zvpass() in UNIX not to accept guest logins with empty passwords.
ckufio.c, 8 Mar 99.
More Kerberos changes from Jeff: ckcdeb.h ckuath.c ckuus3.c ckutio.c ckcnet.c,
8 Mar 99.
Fix from Jeff for IKSD negotiation problem, in which client could send
RESP_STOP in response to REQ_START even when autodownload was ON. ckctel.c,
8 Mar 99.
Made switch completion print "=" rather than ":" as the separator in VMS, for
switches that take args. ckucmd.c, 8 Mar 99.
Changes from Jeff to ckcnet, ckutio, and ckuath.c, mainly for Kerberos 5,
9 Mar 99.
Fixed hint for failed RLOGIN commands -- it was in the wrong place.
ckuus[r7].c, 9 Mar 99.
Changed VMS zfcdat() to return the file's creation date, not modification
date, to match VMS customs and usage, not to mention the fact that VMS
C-Kermit, when receiving a file, sets the *creation* date (not modification
date) from the A packet. Suggested by Lucas Hart. 9 Mar 99.
Straightened up a mess regarding -DNOREDIRECT (it was not checked in enough
places) and also made sure that NETCMD could not be defined if NOREDIRECT
was defined. ckcdeb.h, 9 Mar 99.
Fixed badly confused #ifdefs around "ping" and "pipe" commands. ckuusr.c,
9 Mar 99.
More Kerberos-related changes from Jeff to ckcnet, ckutio, etc, plus
ckuus[45].c, 9 Mar 99.
Cleaned up the logic of UNIX zgetfs() a bit with respect to symlinks.
Now "dir /dir" lists symlinks to directories, and "dir /files" lists symlinks
to files. This was (I hope) the last remaining problem with the DIRECTORY