2 C-Kermit Configuration Options
8 As of: C-Kermit 8.0.211, 10 April 2004
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23 2. [7]SERIAL COMMUNICATION SPEEDS
24 3. [8]FULLSCREEN FILE TRANSFER DISPLAY
29 8. [13]NETWORK SUPPORT
30 9. [14]EXCEPTION HANDLING
31 10. [15]SECURITY FEATURES
32 11. [16]ENABLING SELECT()
33 12. [17]I/O REDIRECTION
34 13. [18]FLOATING-POINT NUMBERS, TIMERS, AND ARITHMETIC
35 14. [19]SPECIAL CONFIGURATIONS
36 I. [20]SUMMARY OF COMPILE-TIME OPTIONS
37 ________________________________________________________________________
41 This document describes configuration options for C-Kermit (5A and
42 later). The major topics covered include program size (and how to
43 reduce it), how to include or exclude particular features, notes on
44 serial-port, modem, and network support, and a list of C-Kermit's
47 For details about your particular operating system, also see the
48 system-specific installation instructions file, such as the
49 [21]C-Kermit Installation Instructions for Unix.
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52 ________________________________________________________________________
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58 Prior to version 7.0, C-Kermit was always built with the most
59 conservative Kermit file-transfer protocol defaults on every platform:
60 no control-character prefixing, 94-byte packets, and a window size of
63 Starting in version 7.0, fast settings are the default. To override
64 these at compile time, include:
68 in the C compiler CFLAGS. Even with the fast defaults, C-Kermit
69 automatically drops down to whatever window and packet sizes requested
70 by the other Kermit, if these are smaller, when sending files (except
71 for control-character unprefixing, which is not negotiated, and which
72 is now set to CAUTIOUS rather than NONE at startup). C-Kermit's
73 settings prevail when it is receiving.
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76 ________________________________________________________________________
78 2. SERIAL COMMUNICATION SPEEDS
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82 As of 6 September 1997, a new simplified mechanism for obtaining the
83 list of legal serial interface speeds is in place:
85 * If the symbol TTSPDLIST is defined, the system-dependent routine
86 ttspdlist() is called at program initialization to obtain the
88 * This symbol should be defined only for C-Kermit implementations
89 that have implemented the ttspdlist() function, typically in the
90 ck?tio.c module. See [34]ckutio.c for an example.
91 * TTSPDLIST is automatically defined in [35]ckcdeb.h for UNIX. Add
92 the appropriate #ifdefs for other platforms when the corresponding
93 ttspdlist() functions are filled in.
94 * If TTSPDLIST is (or normally would be) defined, the old code
95 (described below) can still be selected by defining NOTTSPDLIST.
97 The ttspdlist() function can obtain the speeds in any way that works.
98 For example, based simply on #ifdef Bnnnn..#endif (in UNIX). Although
99 it might be better to actually check each speed against the currently
100 selected hardware interface before allowing it in the array, there is
101 usually no passive and/or reliable and safe way to do this, and so
102 it's better to let some speeds into the array that might not work,
103 than it is to erroneously exclude others. Speeds that don't work are
104 caught when the SET SPEED command is actually given.
106 Note that this scheme does not necessarily rule out split speed
107 operation, but effectively it does in C-Kermit as presently
108 constituted since there are no commands to set input and output speed
109 separately (except the special case "set speed 75/1200").
111 Note that some platforms, notably AIX 4.2 and 4.3, implement high
112 serial speeds transparently to the application, e.g. by mapping 50 bps
113 to 57600 bps, and so on.
115 That's the whole deal. When TTSPDLIST is not defined, the following
118 Speeds are defined in two places: the SET SPEED keyword list in the
119 command parser (as of this writing, in the [36]ckuus3.c source file),
120 and in the system- dependent communications i/o module, ck?tio.c,
121 functions ttsspd() (set speed) and ttgspd() (get speed). The following
122 speeds are assumed to be available in all versions:
124 0, 110, 300, 600, 1200, 2400, 4800, 9600
126 If one or more of these speeds is not supported by your system, you'll
127 need to change the source code (this has never happened so far). Other
128 speeds that are not common to all systems have Kermit-specific
132 Speed (bps) to enable to disable
135 75/1200 BPS_7512 NOB_7512
136 134.5 BPS_134 NOB_134
139 1800 BPS_1800 NOB_1800
140 3600 BPS_3600 NOB_3600
141 7200 BPS_7200 NOB_7200
142 14400 BPS_14K NOB_14K
143 19200 BPS_19K NOB_19K
144 28800 BPS_28K NOB_28K
145 38400 BPS_38K NOB_38K
146 57600 BPS_57K NOB_57K
147 76800 BPS_76K NOB_76K
148 115200 BPS_115K NOB_155K
149 230400 BPS_230K NOB_230K
150 460800 BPS_460K NOB_460K
151 921600 BPS_921K NOB_921K
153 The [37]ckcdeb.h header file contains default speed configurations for
154 the many systems that C-Kermit supports. You can override these
155 defaults by (a) editing ckcdeb.h, or (b) defining the appropriate
156 enabling and/or disabling symbols on the CC command line, for example:
158 -DBPS_14400 -DNOB_115200
160 or the "make" command line, e.g.:
162 make blah "KFLAGS=-DBPS_14400 -DNOB_115200"
164 Note: some speeds have no symbols defined for them, because they have
165 never been needed: 12.5bps, 45.5bps, 20000bps, etc. These can easily
166 be added if required (but they will work only if the OS supports
169 IMPORTANT: Adding one of these flags at compile time does not
170 necessarily mean that you will be able to use that speed. A particular
171 speed is usable only if your underlying operating system supports it.
172 In particular, it needs to be defined in the appropriate system header
173 file (e.g. in UNIX, cd to /usr/include and grep for B9600 in *.h and
174 sys/*.h to find the header file that contains the definitions for the
175 supported speeds), and supported by the serial device driver, and of
176 course by the physical device itself.
178 ALSO IMPORTANT: The list of available speeds is independent of how
179 they are set. The many UNIXes, for example, offer a wide variety of
180 APIs that are BSD-based, SYSV-based, POSIX-based, and purely made up.
181 See the ttsspd(), ttgspd(), and ttspdlist() routines in [38]ckutio.c
184 The latest entries in this horserace are the tcgetspeed() and
185 ttsetspeed() routines found in UnixWare 7. Unlike other methods, they
186 accept the entire range of integers (longs really) as speed values,
187 rather than certain codes, and return an error if the number is not,
188 in fact, a legal speed for the device/driver in question. In this
189 case, there is no way to build a list of legal speeds at compile time,
190 since no Bnnnn symbols are defined (except for "depracated, legacy"
191 interfaces like ioctl()) and so the legal speed list must be
192 enumerated in the code -- see ttspdlist() in [39]ckutio.c.
194 [ [40]C-Kermit Home ] [ [41]Kermit Home ]
195 ________________________________________________________________________
197 3. FULLSCREEN FILE TRANSFER DISPLAY
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201 New to edit 180 is support for an MS-DOS-Kermit-like local-mode full
202 screen file transfer display, accomplished using the curses library,
203 or something equivalent (for example, the Screen Manager on DEC VMS).
204 To enable this feature, include the following in your CFLAGS:
208 and then change your build procedure (if necessary) to include the
209 necessary libraries. For example, in Unix these are usually "curses"
210 or "ncurses" (and more recenlty, "ncursesw" and "slang"), perhaps also
211 "termcap", "termlib", or "tinfo":
213 "LIBS= -lcurses -ltermcap"
214 "LIBS= -lcurses -ltermlib"
219 "man curses" for further information, and search through the Unix
220 [46]makefile for "CK_CURSES" to see many examples, and also see the
221 relevant sections of the [47]Unix C-Kermit Installation Instructions,
222 particularly Sections [48]4 and [49]9.2.
224 There might still be a complication. Some implementations of curses
225 reserve the right to alter the buffering on the output file without
226 restoring it afterwards, which can leave Kermit's command processing
227 in a mess when the prompt comes back after a fullscreen file transfer
228 display. The typical symptom is that characters you type at the prompt
229 after a local-mode file transfer (i.e. after seeing the curses
230 file-transfer display) do not echo until you press the Return (Enter)
231 key. If this happens to you, try adding
235 to your makefile target (see comments in screenc() in [50]ckuusx.c for
238 If that doesn't fix the problem, then use a bigger hammer and replace
243 which tells Kermit to force stdout to be unbuffered so CBREAK mode can
246 In SCO Xenix and SCO UNIX, there are two separate curses libraries,
247 one based on termcap and the other based on terminfo. The default
248 library, usually terminfo, is established when the development system
249 is installed. To manually select terminfo (at compile time):
251 compile -DM_TERMINFO and link -ltinfo
253 and to manually select termcap:
255 compile -DM_TERMCAP and link -ltcap -ltermlib
257 <curses.h> looks at M_TERMINFO and M_TERMCAP to decide which header
258 files to use. /usr/lib/libcurses.a is a link to either libtinfo.a or
259 libtcap.a. The C-Kermit compilation options must agree with the
260 version of the curses library that is actually installed.
262 NOTE: If you are doing an ANSI-C compilation and you get compile time
263 warnings like the following:
265 Warning: function not declared in ckuusx.c: wmove, printw, wclrtoeol,
266 wclear, wrefresh, endwin, etc...
268 it means that your <curses.h> file does not contain prototypes for
269 these functions. The warnings should be harmless.
271 New to edit 190 is the ability to refresh a messed-up full-screen
272 display, e.g. after receiving a broadcast message. This depends on the
273 curses package including the wrefresh() and clearok() functions and
274 the curscr variable. If your version has these, or has code to
275 simulate them, then add:
279 The curses and termcap libraries add considerable size to the program
280 image (e.g. about 20K on a SUN-4, 40K on a 386). On some small
281 systems, such as the AT&T 6300 PLUS, curses can push Kermit over the
282 edge... even though it compiles, loads, and runs correctly, its
283 increased size apparently makes it swap constantly, slowing it down to
284 a crawl, even when the curses display is not in use. Some new makefile
285 targets have been added to take care of this (e.g. sys3upcshcc), but
286 similar tricks might be necessary in other cases too.
288 On the curses file-transfer display, just below the "thermometer", is
289 a running display of the transfer rate, as a flat quotient of file
290 characters per elapsed seconds so far. You can change this to an
291 average that gives greater weight to recent history (0.25 *
292 instantaneous cps + 0.75 * historical cps) by adding -DCPS_WEIGHTED to
293 your CFLAGS (sorry folks, this one is not worth a SET command). You
294 can choose a second type of weighted average in which the weighting
295 smooths out progressively as the transfer progresses by adding
296 -DCPS_VINCE to -DCPS_WEIGHTED.
298 An alternative to curses is also available at compile time, but should
299 be selected if your version of Kermit is to be run in local mode only
300 in an ANSI terminal environment, for example on a desktop workstation
301 that has an ANSI console driver. To select this option in place of
302 curses, define the symbol MYCURSES:
306 instead of CK_CURSES. The MYCURSES option uses built-in ANSI (VT100)
307 escape sequences, and depends upon your terminal or console driver to
308 interpret them correctly.
310 In some C-Kermit builds, we replace printf() via #define printf...
311 However, this can cause conflicts with the [n]curses header files.
312 Various hacks are required to get around this -- see [51]ckutio.c,
313 [52]ckufio.c, [53]ckuusx.c, [54]ckucmd.c, etc.
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322 Since version 5A, C-Kermit has included support for conversion of
323 character sets for Western European languages (i.e. languages that
324 originated in Western Europe, but are now also spoken in the Western
325 Hemisphere and other parts of the world), via ISO 8859-1 Latin
326 Alphabet 1, for Eastern European languages (ISO Latin-2), Hebrew (and
327 Yiddish), Greek, and Cyrillic-alphabet languages (ISO Latin/Cyrillic).
328 Many file (local) character sets are supported: ISO 646 7-bit national
329 sets, IBM code pages, Apple, DEC, DG, NeXT, etc.
331 To build Kermit with no character-set translation at all, include
332 -DNOCSETS in the CFLAGS. To build with no Latin-2, add -DNOLATIN2. To
333 build with no Cyrillic, add -DNOCYRIL. To omit Hebrew, add -DNOHEBREW.
334 If -DNOCSETS is *not* included, you'll always get LATIN1. To build
335 with no KANJI include -DNOKANJI. There is presently no way to include
336 Latin-2, Cyrillic, Hebrew, or Kanji without also including Latin-1.
338 [61]Unicode support was added in C-Kermit 7.0, and it adds a fair
339 amount of tables and code (and this is only a "Level 1" implementation
340 -- a higher level would also require building in the entire Unicode
341 database). On a PC with RH 5.2 Linux, building C-Kermit 7.0, we get
344 NOCSETS NOUNICODE NOKANJI Before After
345 [ ] [ ] [ ] 1329014 (Full)
346 [ ] [ ] [ X ] 1325686 (Unicode but no Kanji)
347 [ ] [ X ] [ ] 1158837 (All charsets except Unicode)
348 [ X ] [ x ] [ x ] 1090845 (NOCSETS implies the other two)
350 Note, by the way, that NOKANJI without NOUNICODE only removes the
351 non-Unicode Kanji sets (Shift-JIS, EUC-JP, JIS-7, etc). Kanji is still
352 representable in UCS-2 and UTF-8.
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361 The Kermit CONNECT and INPUT commands are coded to execute Application
362 Program Command escape sequences from the host:
366 where <text> is a C-Kermit command, or a list of C-Kermit commands
367 separated by commas, up to about 1K in length.
369 To date, this feature has been included in the OS/2, Windows, VMS,
370 OS-9, and Unix versions, for which the symbol:
374 is defined automatically in [68]ckuusr.h. For OS/2, APC is enabled at
375 runtime by default, for UNIX it is disabled. It is controlled by the
376 SET TERMINAL APC command. Configuring APC capability into a version
377 that gets it by default (because CK_APC is defined in [69]ckuusr.h)
378 can be overridden by including:
382 on the CC command line.
384 C-Kermit's autodownload feature depends on the APC feature, so
385 deconfiguring APC also disables autodownload (it doesn't use APC
386 escape sequences, but uses the APC switching mechanism internally).
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389 ________________________________________________________________________
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397 6.1. [76]Feature Selection
398 6.2. [77]Changing Buffer Sizes
399 6.3. [78]Other Size-Related Items
400 6.4. [79]Space/Time Tradeoffs
402 (Also see [80]Section 4)
404 Each release of C-Kermit is larger than the last. On some computers
405 (usually old ones) the size of the program prevents it from being
406 successfully linked and loaded. On some others (also usually old
407 ones), it occupies so much memory that it is constantly swapping or
408 paging. In such cases, you can reduce C-Kermit's size in various ways,
409 outlined in this section. The following options can cut down on the
410 program's size at compile time by removing features or changing the
411 size of storage areas.
413 If you are reading this section because all you want is a small, fast,
414 quick-to-load Kermit file-transfer application for the remote end of
415 your connection, and the remote end is Unix based, take a look at
418 [81]http://www.columbia.edu/kermit/gkermit.html
420 6.1. Feature Selection
422 Features can be added or removed by defining symbols on the CC (C
423 compiler) command line. "-D" is the normal CC directive to define a
424 symbol so, for example, "-DNODEBUG" defines the symbol NODEBUG. Some C
425 compilers might use different syntax, e.g. "-d NODEBUG" or
426 "/DEFINE=NODEBUG". For C compilers that do not accept command-line
427 definitions, you can put the corresponding #define statements in the
428 file ckcsym.h, for example:
432 The following table shows the savings achieved when building C-Kermit
433 8.0 (Beta.04) with selected feature-deselection switches on an
434 Intel-based PC with Red Hat Linux 7.0 and gcc 2.96. The sizes are for
435 non-security builds. The fully configured non-security build is
438 Option Size Savings Effect
439 NOICP 545330 74.4% No Interactive Command Parser (command-line only)
440 NOLOCAL 1539994 27.6% No making connections.
441 NOXFER 1551108 27.1% No file transfer.
442 IKSDONLY 1566608 26.4% Internet Kermit Server only.
443 NOCSETS 1750097 17.7% No character-set conversion.
444 NOSPL 1800293 15.4% No Script Programming Language.
445 NONET 1808575 15.0% No making network connections.
446 NOUNICODE 1834426 13.8% No Unicode character-set conversion.
447 NOHELP 1837877 13.6% No built-in help text.
448 NODEBUG 1891669 11.1% No debug log.
449 NOFRILLS 1918966 9.8% No "frills".
450 NOFTP 1972496 7.3% No FTP client.
451 NODIAL 1984488 6.7% No automatic modem dialing.
452 NOPUSH 2070184 2.7% No shell access, running external programs, etc.
453 NOIKSD 2074129 2.5% No Internet Kermit Server capability.
454 NOHTTP 2082610 2.1% No HTTP client.
455 NOFLOAT 2091332 1.7% No floating-point arithmetic.
456 NOCHANNELIO 2095978 1.5% No FOPEN/FREAD/FWRITE/FCLOSE, etc.
457 MINIDIAL 2098035 1.4% No built-in support for many kinds of modems.
458 NOSERVER 2098987 1.3% No server mode.
459 NOSEXP 2105898 1.0% No S-Expressions.
460 NOPTY 2117743 0.5% No pseudoterminal support.
461 NORLOGIN 2121089 0.3% No RLOGIN connections.
462 NOOLDMODEMS 2124038 0.2% No built-in support for old kinds of modems.
463 NOSSH 2125696 0.1% No SSH command.
465 And here are a few combinations
467 Options Size Savings Effect
468 NODEBUG NOICP NOCSETS NOLOCAL 281641 86.7% No debug log, parser,
469 character sets, or making connections.
470 NOICP NOCSETS NOLOCAL 376468 82.3% No parser, character sets, or
472 NOICP NOCSETS NONET 427510 79.9% No parser, character sets, or network
474 NOSPL NOCSETS 1423784 33.1% No script language, or character sets.
476 -DNOFRILLS removes various command synonyms; the following top-level
477 commands: CLEAR, DELETE, DISABLE, ENABLE, GETOK, MAIL, RENAME, TYPE,
478 WHO; and the following REMOTE commands: KERMIT, LOGIN, LOGOUT, PRINT,
481 6.2. Changing Buffer Sizes
483 Most modern computers have so much memory that (a) there is no need to
484 scrimp and save, and (b) C-Kermit, even when fully configured, is
485 relatively small by today's standards.
487 Two major factors affect Kermit's size: feature selection and buffer
488 sizes. Buffer sizes affect such things as the maximum length for a
489 Kermit packet, the maximum length for a command, for a macro, for the
490 name of a macro, etc. Big buffer sizes are used when the following
495 as it is by default for most modern platforms (Linux, AIX 4 and 5,
496 HP-UX 10 and 11, Solaris, etc) in [82]ckuusr.h. If your build does not
497 get big buffers automatically (SHOW FEATURES tells you), you can
498 include them by rebuilding with BIGBUFOK defined; e.g. in Unix:
500 make xxxx KFLAGS=-DBIGBUFOK
502 where xxxx is the makefile target. On the other hand, if you want to
503 build without big buffers when they normally would be selected, use:
505 make xxxx KFLAGS=-DNOBIGBUF
507 There are options to control Kermit's packet buffer allocations. The
508 following symbols are defined in [83]ckcker.h in such a way that you
509 can override them by redefining them in CFLAGS:
511 -DMAXSP=xxxx - Maximum send-packet length.
512 -DMAXRP=xxxx - Maximum receive-packet length.
513 -DSBSIZ=xxxx - Total allocation for send-packet buffers.
514 -DRBSIZ=xxxx - Total allocation for receive-packet buffers.
516 The defaults depend on the platform.
518 Using dynamic allocation (-DDYNAMIC) reduces storage requirements for
519 the executable program on disk, and allows more and bigger packets at
520 runtime. This has proven safe over the years, and now most builds
521 (e.g. all Unix, VMS, Windows, and OS/2 ones) use dynamic memory
522 allocation by default. If it causes trouble, however, then omit the
523 -DDYNAMIC option from CFLAGS, or add -DNODYNAMIC.
525 6.3. Other Size-Related Items
527 To make Kermit compile and load successfully, you might have to change
528 your build procedure to:
530 a. Request a larger ("large" or "huge") compilation / code-generation
531 model. This is needed for 16-bit PC-based UNIX versions (most or
532 all of which fail to build C-Kermit 7.0 and later anyway). This is
533 typically done with a -M and/or -F switch (see your cc manual or
534 man page for details).
535 b. Some development systems support overlays. If the program is too
536 big to be built as is, check your loader manual ("man ld") to see
537 if an overlay feature is available. See the 2.10/2.11 BSD example
538 in the UNIX makefile. (Actually, as of version 7.0, C-Kermit is
539 too big to build, period, even with overlays, on 2.xx BSD).
540 c. Similarly, some small and/or segment-based architectures support
541 "code mapping", which is similar to overlays (PDP11-based VENIX
542 1.0, circa 1984, was an example). See the linker documentation on
543 the affected platform.
545 It is also possible to reduce the size of the executable program file
546 in several other ways:
548 a. Include the -O (optimize) compiler switch if it isn't already
549 included in your "make" entry (and if it works!). If your compiler
550 supports higher levels of optimization (e.g. -O2 or higher number,
551 -Onolimit (HP-UX), etc), try them; the greater the level of
552 optimization, the longer the compilation and more likely the
553 compiler will run out of memory. The the latter eventuality, some
554 compilers also provide command-line options to allocate more
555 memory for the optimizer, like "-Olimit number" in Ultrix.
556 b. If your platofrm supports shared libraries, change the make entry
557 to take advantage of this feature. The way to do this is, of
558 course, platform dependent; see the NeXT makefile target for an
559 example. some platforms (like Solaris) do it automatically and
560 give you no choice. But watch out: executables linked with shared
561 libraries are less portable than statically linked executables.
562 c. Strip the program image after building ("man strip" for further
563 info), or add -s to the LNKFLAGS (UNIX only). This strips the
564 program of its symbol table and relocation information.
565 d. Move character strings into a separate file. See the 2.11 BSD
566 target for an example.
568 6.4. Space/Time Tradeoffs
570 There are more than 6000 debug() statements in the program. If you
571 want to save both space (program size) and time (program execution
572 time), include -DNODEBUG in the compilation. If you want to include
573 debugging for tracking down problems, omit -DNODEBUG from the make
574 entry. But when you include debugging, you have two choices for how
575 it's done. One definition defines debug() to be a function call; this
576 is cheap in space but expensive in execution. The other defines debug
577 as "if (deblog)" and then the function call, to omit the function call
578 overhead when the debug log is not active. But this adds a lot of
579 space to the program. Both methods work, take your choice; IFDEBUG is
580 preferred if memory is not a constraint but the computer is likely to
581 be slow. The first method is the default, i.e. if nothing is done to
582 the CFLAGS or in [84]ckcdeb.h (but in some cases, e.g. VMS, it is). To
583 select the second method, include -DIFDEBUG in the compilation (and
584 don't include -DNODEBUG).
586 [ [85]C-Kermit Home ] [ [86]Kermit Home ]
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593 -DNODIAL removes automatic modem dialing completely, including the
594 entire [91]ckudia.c module, plus all commands that refer to dialing in
595 the various ckuus*.c modules.
597 -DMINIDIAL leaves the DIAL and related commands (SET/SHOW MODEM,
598 SET/SHOW DIAL) intact, but removes support for all types of modems
599 except CCITT, Hayes, Unknown, User-defined, Generic-high-speed, and
600 None (= Direct). The MINIDIAL option cuts the size of the dial module
601 approximately in half. Use this option if you have only Hayes or CCITT
602 modems and don't want to carry the baggage for the other types.
604 A compromise between full dialer support and MINIDIAL is obtained by
605 removing support for "old" modems -- all the strange non-Hayes
606 compatible 1200 and 2400 bps modems that C-Kermit has been carrying
607 around since 1985 or so. To remove support for these modems, add
608 -DNOOLDMODEMS to CFLAGS at compilation time.
610 Finally, if you keep support for old modems, you will notice that
611 their names appear on the "set modem ?" menu. That's because their
612 names are, by default, "visible". But the list is confusing to the
613 younger generation, who have only heard of modems from the
614 V.32bis-and-later era. If you want to be able to use old modems, but
615 don't want their names cluttering up menus, add this to CFLAGS:
619 [ [92]C-Kermit Home ] [ [93]Kermit Home ]
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630 8.3. [100]Other Networks
632 C-Kermit supports not only serial-port and modem connections, but also
633 TCP/IP and X.25 network connections. Some versions support other
634 network types too like DECnet, LAT, NETBIOS, etc. If you define the
639 then all network support is compiled away.
645 8.1.1. [101]Firewalls
646 8.1.2. [102]Compilation and Linking Problems
647 8.1.3. [103]Enabling Host Address Lists
648 8.1.4. [104]Enabling Telnet NAWS
649 8.1.5. [105]Enabling Incoming TCP/IP Connections
650 8.1.6. [106]Disabling SET TCP Options
652 C-Kermit's TCP/IP features require the Berkeley sockets library or
653 equivalent, generally available on any Unix system, as well as in
654 Windows 9x/NT, OS/2, VMS, AOS/VS, VOS, etc. The TCP/IP support
655 includes built-in TELNET, FTP, and HTTP protocol. To select TCP/IP
656 support, include -DTCPSOCKET in your makefile target's CFLAGS, or (in
657 VMS) the appropriate variant (e.g. -DWOLLONGONG, -DMULTINET,
658 -DEXCELAN, -DWINTCP, etc).
660 The VMS and/or early Unix third-party TCP/IP products are often
661 incompatible with each other, and sometimes with different versions of
662 themselves. For example, Wollongong reportedly put header files in
663 different directories for different UNIX versions:
665 * in.h can be in either /usr/include/sys or /user/include/netinet.
666 * telnet.h can be in either /usr/include/arpa or
667 /user/include/netinet.
668 * inet.h can be in either /usr/include/arpa or /user/include/sys.
670 In cases like this, use the -I cc command-line option when possible;
671 otherwise it's better to make links in the file system than it is to
672 hack up the C-Kermit source code. Suppose, for example, Kermit is
673 looking for telnet.h in /usr/include/arpa, but on your computer it is
674 in /usr/include/netinet. Do this (as root, or get the system
675 administrator to do it):
678 ln /usr/include/netinet/telnet.h telnet.h
680 ("man ln" for details about links.)
682 The network support for TCP/IP and X.25 is in the source files
683 [107]ckcnet.h, [108]ckctel.c, [109]ckctel.c, [110]ckctel.h,
684 [111]ckcftp.c, with miscellaneous SHOW commands, etc, in the various
685 ckuus*.c modules, plus code in the ck*con.c or ckucns.c (CONNECT
686 command) and several other modules to detect TELNET negotiations, etc.
688 Within the TCPSOCKET code, some socket-level controls are included if
689 TCPSOCKET is defined in the C-Kermit CFLAGS and SOL_SOCKET is defined
690 in in the system's TCP-related header files, such as <sys/socket.h>.
698 In addition, if TCP_NODELAY is defined, the following command is also
701 SET TCP NODELAY (Nagle algorithm)
703 See the [112]C-Kermit user documentation for descriptions of these
708 There exist various types of firewalls, set up to separate users of an
709 internal TCP/IP network ("Intranet") from the great wide Internet, but
710 then to let selected users or services get through after all.
712 One firewall method is called SOCKS, in which a proxy server allows
713 users inside a firewall to access the outside world, based on a
714 permission list generally stored in a file. SOCKS is enabled in one of
715 two ways. First, the standard sockets library is modified to handle
716 the firewall, and then all the client applications are relinked (if
717 necessary, i.e. if the libraries are not dynamically loaded) with the
718 modified sockets library. The APIs are all the same, so the
719 applications do not need to be recoded or recompiled.
721 In the other method, the applications must be modified to call
722 replacement routines, such as Raccept() instead of accept(), Rbind()
723 instead of bind(), etc, and then linked with a separate SOCKS library.
724 This second method is accomplished (for SOCKS4) in C-Kermit by
725 including -DCK_SOCKS in your CFLAGS, and also adding:
729 to LIBS, or replacing -lsockets with -lsocks (depending on whether the
730 socks library also includes all the sockets entry points).
732 For SOCKS5, use -DCK_SOCKS5.
734 Explicit firewall support can, in general, not be a standard feature
735 or a feature that is selected at runtime, because the SOCKS library
736 tends to be different at each site -- local modifications abound.
738 The ideal situation occurs when firewalls are supported by the first
739 method, using dynamically linked sockets-replacement libraries; in
740 this case, all your TCP/IP client applications negotiate the firewall
743 8.1.2. Compilation and Linking Problems
745 If you get a compilation error in [113]ckcnet.c, with a complaint like
746 "incompatible types in assignment", it probably has something to do
747 with the data type your system uses for the inet_addr() function,
748 which is declared (usually) in <arpa/inet.h>. Kermit uses "unsigned
749 long" unless the symbol INADDRX is defined, in which case "struct
750 inaddr" is used instead. Try adding -DINADDRX to CFLAGS in your make
751 entry, and if that fixes the problem, please send a report to
754 Compilation errors might also have to do with the data type used for
755 getsockopt() and setsockopt() option-length field. This is normally an
756 int, but sometimes it's a short, a long, or an unsigned any of those,
757 or a size_t. To fix the compilation problem, add -DSOCKOPT_T=xxx to
758 the CFLAGS in your makefile target, where xxx is the appropriate type
759 (use "man getsockopt" or grep through your system/network header files
760 to find the needed type).
762 8.1.3. Enabling Host Address Lists
764 When you give Kermit an IP host name, it calls the socket routine
765 gethostbyname() to resolve it. gethostbyname() returns a hostent
766 struct, which might or might not not include a list of addresses; if
767 it does, then if the first one fails, Kermit can try the second one,
768 and so on. However, this will only work if the symbol "h_addr" is a
769 macro defined as "h_addr_list[0]", usually in netdb.h. If it is, then
770 you can activate this feature by defining the following symbol in
775 8.1.4. Enabling Telnet NAWS
777 The Telnet Negotiation About Window Size (NAWS) option requires the
778 ability to find out the terminal screen's dimensions. E.g. in Unix, we
779 need something like ioctl(0, TIOCGWINSZ, ...). If your version of
780 Kermit was built with NAWS capability, SHOW VERSIONS includes CK_NAWS
781 among the compiler options. If it doesn't, you can add it by defining
782 CK_NAWS at compile time. Then, if the compiler or linker complain
783 about undefined or missing symbols, or there is no complaint but SHOW
784 TERMINAL fails to show reasonable "Rows =, Columns =" values, then
785 take a look at (or write) the appropriate ttgwsiz() routine. On the
786 other hand, if CK_NAWS is defined by default for your system (in
787 [114]ckcnet.h), but causes trouble, you can override this definition
788 by including the -DNONAWS switch on your CC command line, thus
789 disabling the NAWS feature.
791 This appears to be needed at least on the AT&T 3B2, where in
792 [115]ckutio.c, the routine ttgwsiz() finds that the TIOCGWINSZ symbol
793 is defined but lacks definitions for the corresponding winsize struct
794 and its members ws_col and ws_row.
796 The UNIX version of C-Kermit also traps SIGWINCH, so it can send a
797 NAWS to the Telnet server any time the local console terminal window
798 size changes, e.g. when you stretch it with a mouse. The
799 SIGWINCH-trapping code is enabled if SIGWINCH is defined (i.e. in
800 signal.h). If this code should cause problems, you can disable it
801 without disabling the NAWS feature altogether, by defining NOSIGWINCH
804 8.1.5. Enabling Incoming TCP/IP Connections
806 This feature lets you "set host * port" and wait for an incoming
807 connection on the given port. This feature is enabled automatically at
808 compile if TCPSOCKET is defined and SELECT is also defined. But watch
809 out, simply defining SELECT on the cc command line does not guarantee
810 successful compilation or linking (see [116]Section 11).
812 If you want to disable incoming TCP/IP connections, then build
817 8.1.6. Disabling SET TCP Options
819 The main reason for this is because of header file / prototype
820 conflicts at compile time regardting get- / setsockopt(). If you can't
821 fix them (without breaking other builds), add the following in CFLAGS:
827 X.25 support requires (a) a Sun, (b) the SunLink product (libraries
828 and header files), and (c) an X.25 connection into your Sun. Similarly
829 (in C-Kermit 7.0 or later) Stratus VOS and IBM AIX.
831 In UNIX, special makefile targets sunos4x25 and sunos41x25 (for SUNOS
832 4.0 and 4.1, respectively), or aix41x25, are provided to build in this
833 feature, but they only work if conditions (a)-(c) are met. To request
834 this feature, include -DSUNX25 (or -DIBMX25) in CFLAGS.
836 SUNX25 (or -DIBMX25) and TCPSOCKET can be freely mixed and matched,
837 and selected by the user at runtime with the SET NETWORK TYPE command
838 or SET HOST switches.
842 Support for other networking methods -- NETBIOS, LAT, Named Pipes, etc
843 -- is included in ck*net.h and ck*net.c for implementations (such as
844 Windows or OS/2) where these methods are supported.
846 Provision is made in the organization of the modules, header files,
847 commands, etc, for addition of new network types such as DECnet, X.25
848 for other systems (HP-UX, VMS, etc), and so on. Send email to
849 [117]kermit@columbia.edu if you are willing and able to work on such a
852 [ [118]C-Kermit Home ] [ [119]Kermit Home ]
853 ________________________________________________________________________
855 9. EXCEPTION HANDLING
857 [ [120]Top ] [ [121]Contents ] [ [122]Next ] [ [123]Previous ]
859 The C language setjmp/longjmp mechanism is used for handling
860 exceptions. The jump buffer is of type jmp_buf, which almost
861 everywhere is typedef'd as an array, in which case you should have no
862 trouble compiling the exception-handling code. However, if you are
863 building C-Kermit in/for an environment where jmp_buf is something
864 other than an array (e.g. a struct), then you'll have to define the
869 [ [124]C-Kermit Home ] [ [125]Kermit Home ]
870 ________________________________________________________________________
872 10. SECURITY FEATURES
874 [ [126]Top ] [ [127]Contents ] [ [128]Next ] [ [129]Previous ]
876 Security, in the sense of secure authentication and strong encryption,
877 can be built into versionf of C-Kermit for which the appropriate
878 libraries and header files are available (Kerberos IV, Kerberos V,
879 OpenSSL, SRP), as explained in great detail in the Kermit Security
881 . The following symbols govern C-Kermit's security features at build
885 Means do not configure any TELNET AUTHENTICATION support. It
886 implies NO_ENCRYPTION and undefines any of the auth and encrypt
887 types. It does not undefine CK_SSL even though builds with
888 CK_SSL cannot succeed without CK_AUTHENTICATION. (This will be
889 supported in a future release. It will be needed to allow
890 C-Kermit to be built only as an FTP client.)
893 Means do not compile in any KERBEROS support when
894 CK_AUTHENTICATION has been defined.
897 Do not compile in any SRP support when CK_AUTHENTICATION has
901 Do not compile in any SSL/TLS support
904 Do not compile in any Telnet encryption support. It does not
905 affect the use of SSL/TLS
908 Do not compile in any SSH support whether internal or external
911 Telnet AUTHENTICATION support. (Also, required if SSL/TLS
912 support is desired.) On most platforms this does not autodefine
913 any authentication mechanisms such as Kerberos V, Kerberos IV,
914 SRP, ... Those need to be defined separately.
917 Defined automatically when KRB4, KRB5, or KRB524 are defined.
918 Implies that some version of Kerberos is in use.
921 Should be defined when Kerberos IV support is desired.
924 Should be defined when Kerberos V support is desired.
927 Should be defined if both Kerberos V and Kerberos IV are used
928 and the Kerberos IV support is provided by the MIT Kerberos IV
929 compatibility library in the current Kerberos 5 distribution.
932 Should be defined if KRB5 is defined and Kerberos 5 User to
933 User mode is desired.
936 Should be defined if Kerberos V support is provided by HEIMDAL.
937 Support for this option is not complete in C-Kermit 8.0. Anyone
938 interested in working on this should contact kermit-support.
941 Should be defined if SRP support is desired.
944 Should be defined if TELNET ENCRYPTION option support is
945 desired. This option does not define any particular encryption
946 types. That should be done by defining CK_DES or CK_CAST.
949 Should be defined if either DES or 3DES Telnet Encryption
950 option support is desired.
953 If CK_DES is defined and DES support is being provided by
954 either Eric Young's libdes.a or OpenSSL 0.9.6x or earlier, this
955 option must be defined. If it is not defined, it will be
956 assumed that DES support is provided by the MIT Kerberos IV
960 Should be defined if CAST Telnet Encryption option support is
964 Should be defined if SSL/TLS support (OpenSSL) is desired.
967 If KRB5 is defined, and OpenSSL is built to support the
968 Kerberos 5 ciphers, then you should define SSL_KRB5
971 If you are using OpenSSL 0.9.7 or higher and do not wish to
972 build with support for Kerberos 5 TLS ciphers, this option must
976 If you are using OpenSSL 0.9.6 or higher and it has been
977 compiled with support for ZLIB compression, this option should
978 be defined to enable Kermit to properly enable the use of
982 Defined for C-Kermit to enable the use of external SSH clients
983 from the Kermit command language
986 Defined for Kermit implementations that have integrated SSH
987 support. Currently only Windows.
990 Defined if either SSHCMD or SSHBUILTIN are defined.
993 Telnet Send Location support.
996 Do not include Telnet Send Location support.
999 Telnet X-Display Location support. Determines if the X-Display
1000 location information is sent to the Telnet server either via
1001 Telnet XDISPLOC or NEW-ENV options.
1004 Do not include Telnet X-Display Location support.
1007 Telnet Forward X Windows Session Data option. Used to protect
1008 the privacy and integrity of X Windows Sessions when secure
1009 telnet sessions are in use.
1012 Do not include Telnet Forward X Windows Session Data option.
1014 Besides the strong forms of security listed above, C-Kermit also
1015 embodies various internal security features, including:
1018 Compiling with the NOPUSH symbol defined removes all the "shell
1019 escape" features from the program, including the PUSH, RUN, and
1020 SPAWN commands, the "!" and "@" command prefixes, OPEN !READ,
1021 OPEN !WRITE, job control (including the SUSPEND command), the
1022 REDIRECT command, shell/DCL escape from CONNECT mode, as well
1023 as the server's execution of REMOTE HOST commands (and, of
1024 course, the ENABLE HOST command). Add NODISPO to also prevent
1025 acceptance of incoming MAIL or REMOTE PRINT files. For UNIX,
1026 also be sure to read [130]Section 11 of the [131]Unix C-Kermit
1027 Installation Instructions. about set[ug]id configuration.
1028 Additional restrictions can be enforced when in server mode;
1029 read about the DISABLE command in the user manual.
1032 Compiling with NOCCTRAP prevents the trapping of SIGINT by
1033 Kermit. Thus if the user generates a SIGINT signal (e.g. by
1034 typing the system's interrupt character), Kermit will exit
1035 immediately, rather than returning to its prompt.
1037 NOPUSH and NOCCTRAP together allow Kermit to be run from restricted
1038 shells, preventing access to system functions.
1040 [ [132]C-Kermit Home ] [ [133]Kermit Home ]
1041 ________________________________________________________________________
1043 11. ENABLING SELECT()
1045 [ [134]Top ] [ [135]Contents ] [ [136]Next ] [ [137]Previous ]
1047 Kermit works best if it can do nonblocking reads, nondestructive input
1048 buffer checking, and millisecond sleeps. All of these functions can be
1049 accomplished by the select() function, which, unfortunately, is not
1050 universally available. Furthermore, select() is required if incoming
1051 TCP/IP connections are to be supported.
1053 select() was introduced with Berkeley UNIX, rejected by AT&T for
1054 System V, but is gradually creeping in to all UNIX versions (and other
1055 operating systems too) by virtue of its presence in the sockets
1056 library, which is needed for TCP/IP. AT&T SVID for System V R4
1057 includes select(), but that does not mean that all SVR4
1058 implementations have it.
1060 Furthermore, even when select() is available, it might work only on
1061 socket file descriptors, but not on others like serial ports, pipes,
1062 etc. For example, in AOS/VS and BeOS, it works only with file
1063 descriptors that were created by socket() and opened by connect() or
1066 Other alternatives include poll() and rdchk(). Only one of these three
1067 functions should be included. The following symbols govern this:
1069 SELECT Use select() (BSD, or systems with sockets libraries)
1070 CK_POLL Use poll() (System V)
1071 RDCHK Use rdchk() (SCO XENIX and UNIX)
1073 If your system supports the select() function, but your version of
1074 C-Kermit does not, try adding:
1078 to the CFLAGS, and removing -DRDCHK or -DCK_POLL if it is there. If
1079 you get compilation errors, some adjustments to ck*tio.c and/or
1080 ck*net.c might be needed; search for SELECT (uppercase) in these files
1081 (note that there are several variations on the calling conventions for
1084 Various macros and data types need to be defined in order to use
1085 select(). Usually these are picked up from <types.h> or <sys/types.h>.
1086 But on some systems, they are in <sys/select.h>. In that case, add the
1091 to the CFLAGS to tell C-Kermit to #include <sys/select.h>. A good
1092 indication that you need to do this would be if you get compile-time
1093 complaints about "fd_set" or "FD_SET" not being declared or defined.
1095 In UNIX, the use of select() vs fork() in the CONNECT command is
1096 independent of the above considerations, and is governed by choosing a
1097 particular makefile target.
1099 As of C-Kermit 7.0, select() is also the preferred control mechanism
1100 for the CONNECT command. Unfortunately, the structures used by the
1101 original UNIX CONNECT command, based on fork(), and those used by
1102 select(), are so different, it was not practical to implement them
1103 both in one module. So the select()-based CONNECT command module for
1104 UNIX is [138]ckucns.c, and the fork-based one remains [139]ckucon.c.
1105 To choose the fork-based one, which is more portable (but slower and
1106 more fragile), use "wermit" as the make target. To choose the
1107 select-based one, use "xermit". Only do this if you can verify that
1108 the CONNECT command works on serial connections and PIPE connections
1109 as well as TCP connections.
1111 The select()-based Unix CONNECT module, ckucns.c, must be used if
1112 encryption is to be done, since the fork() version (ckucon.c) loses
1113 its ability to share vital state information between the two forks.
1114 Also note that the select() version is superior in many other ways
1115 too. For example, it recovers better from exterior killing, forced
1116 disconnections, etc, plus it goes faster.
1118 SHOW VERSIONS tells whether the CONNECT module uses fork() or
1121 C-Kermit 8.0 adds learned script capability, which depends on
1122 select(). All the "wermit" based targets (as opposed to "xermit") had
1123 NOLEARN added to them. Whenever changing a target over from wermit to
1124 xermit, also remember to remove NOLEARN.
1126 [ [140]C-Kermit Home ] [ [141]Kermit Home ]
1127 ________________________________________________________________________
1131 [ [142]Top ] [ [143]Contents ] [ [144]Next ] [ [145]Previous ]
1133 The REDIRECT command allows a local program to be run with its i/o
1134 redirected over the communications connection. Your version of
1135 C-Kermit has a REDIRECT command if it was built with the following
1140 This, in turn, is possible only if the underlying API is there. In the
1141 case of UNIX this is just the wait() system call, so all UNIX versions
1142 get this feature as of 6.0.192 (earlier versions needed a <sys/wait.h>
1143 header file defining the symbols WIFEXITED and WEXITSTATUS).
1145 As of version 7.0, file transfer can be done using pipes and filters.
1146 To enable this feature, #define PIPESEND (and fill in the code). To
1147 disable on systems where it is normally enabled, define NOPIPESEND.
1148 This feature is, of course, also disabled by building with NOPUSH (or
1149 giving the "nopush" command at runtime).
1151 C-Kermit 7.0 also adds the PIPE and SET HOST /COMMAND commands, which
1152 provide another form of redirection. This feature is selected with
1153 -DNETCMD. CK_RDIR must also be defined, since the same mechanisms are
1156 [ [146]C-Kermit Home ] [ [147]Kermit Home ]
1157 ________________________________________________________________________
1159 13. FLOATING-POINT NUMBERS, TIMERS, AND ARITHMETIC
1161 [ [148]Top ] [ [149]Contents ] [ [150]Next ] [ [151]Previous ]
1163 Floating-point support was added in C-Kermit 7.0.
1165 Floating-point numbers are enabled internally, at least for use in
1166 high-precision file-transfer timers and statistics, unless the
1167 following symbol is defined at compile time:
1171 This might be necessary on old PCs that do not have built-in
1172 floating-point hardware.
1174 When NOFLOAT is not defined, the following symbol tells which
1175 floating-point type to use:
1179 The value is either "double" (normal for 32- and 16-bit architectures)
1180 or "float" (normal for 64-bit architectures).
1182 C-Kermit can be configured to use high-precision file-transfer timers
1183 for more accurate statistics. This feature is enabled with:
1191 If you try to build with -DGFTIMER but you get compilation errors,
1192 either fix them (and send email to kermit@columbia.edu telling what
1193 you did), or else give up and use -DNOGFTIMER (or -DNOFLOAT) instead.
1194 Hint: depending on your machine architecture, you might have better
1195 luck using double than float as the data type for floating-point
1196 numbers, or vice versa. Look in [152]ckcdeb.h for the CKFLOAT
1199 Floating-point arithmetic is also supported in the script programming
1200 language. First via the \fpp...() functions, such as \fppadd(), which
1201 adds two floating-point numbers, second in S-Expressions. Addition,
1202 subtraction, multiplication, and division are always available. But
1203 other functions such as logs, raising to powers, sines and cosines,
1204 etc, require the C Math library. To include user-level floating-point
1209 and in Unix you must link with the Math library:
1213 In K95 and VMS, FNFLOAT is defined automatically if CKFLOAT is
1214 defined. In Unix, however, FNFLOAT must be added to each makefile
1215 target individually, because of the special linking instructions that
1216 must also be added to each target.
1218 Note: S-Expressions require FNFLOAT.
1220 [ [153]C-Kermit Home ] [ [154]Kermit Home ]
1221 ________________________________________________________________________
1223 14. SPECIAL CONFIGURATIONS
1225 [ [155]Top ] [ [156]Contents ] [ [157]Previous ]
1227 As of C-Kermit 7.0, if you build C-Kermit normally, but with -DNOICP
1228 (No Interactive Command Parser), you get a program capable of making
1229 serial connections (but not dialing) and network connections (if
1230 TCPSOCKET or other network option included), and can also transfer
1231 files using Kermit protocol, but only via autodownload/upload.
1232 Furthermore, if you call the executable "telnet", it will act like
1233 Telnet -- using the command-line options. However, in this case there
1234 is nothing to escape back to, so if you type Ctrl-\c, it just prints a
1235 message to this effect.
1237 You can also build C-Kermit with -DNOXFER, meaning omit all the
1238 file-transfer features. This leaves you with a scriptable
1239 communications program that is considerably smaller than the full
1242 [ [158]C-Kermit Home ] [ [159]Kermit Home ]
1243 ________________________________________________________________________
1245 APPENDIX I: SUMMARY OF COMPILE-TIME OPTIONS
1247 [ [160]Top ] [ [161]Contents ]
1249 These are the symbols that can be specified on the cc command line,
1250 listed alphabetically. Others are used internally, including those
1251 taken from header files, those defined by the compiler itself, and
1252 those inferred from the ones given below. Kermit's SHOW VERSIONS
1253 command attempts to display most of these. See [162]ckcdeb.h and
1254 [163]ckcnet.h for inference rules. For example SVR3 implies ATTSV,
1255 MULTINET implies TCPSOCKET, and so on.
1257 Here is the complete list of the Kermit-specific compile-time
1260 ACUCNTRL Select BSD 4.3-style acucntrl() bidirectional tty control.
1261 aegis Build for Apollo Aegis (predefined on Apollo systems).
1262 AIX370 Build for IBM AIX/370 for IBM mainframes.
1263 AIXESA Build for IBM AIX/ESA for IBM mainframes.
1264 AIXPS2 Build for IBM AIX 3.0 for PS/2 series (never formally
1266 AIXRS Build for IBM AIX 3.x on RS/6000.
1267 AIX41 Build for IBM AIX 4.x on RS/6000.
1268 AMIGA Build for Commodore Amiga with Intuition OS.
1269 ATT6300 Build for AT&T 6300 PLUS.
1270 ATT7300 Build for AT&T 7300 UNIX PC (3B1).
1271 ATTSV Build for AT&T System III or V UNIX.
1272 AUX Build for Apple A/UX for the Macintosh.
1273 BIGBUFOK OK to use big buffers - "memory is not a problem"
1274 BPS_xxxx Enable SET SPEED xxxx
1275 BSD29 Build for BSD 2.9 or 2.10.
1276 BSD4 Build for BSD 4.2.
1277 BSD41 Build for BSD 4.1.
1278 BSD43 Build for BSD 4.3.
1279 BSD44 Build for BSD 4.4.
1280 C70 Build for BBN C/70.
1281 CIE Build for CIE Systems 680/20.
1282 CKCONINTB4CB Work around prompt-disappears after escape back from
1284 CKLEARN Build with support for learned scripts.
1285 CKLOGDIAL Enable connection log.
1286 CKMAXPATH Maximum length for a fully qualified filename.
1287 CKREGEX (misnomer) Include [...] or {xxx,xxx,xxx} matching in
1289 CKSYSLOG Enable syslogging.
1290 CK_ANSIC Enable ANSI C constructs - prototypes, etc.
1291 CK_ANSILIBS Use header files for ANSI C libraries.
1292 CK_APC Enable APC execution by CONNECT module.
1293 CK_CURSES Enable fullscreen file transfer display.
1294 CK_DSYSINI Use system-wide init file, with name supplied by Kermit.
1295 CK_DTRCD DTR/CD flow control is available.
1296 CK_FAST Build with fast Kermit protocol defaults.
1297 CK_FORK_SIG UNIX only: signal() number for CONNECT module forks.
1298 CK_IFRO IF REMOTE command is available (and can run in remote mode).
1299 CK_INI_A System-wide init file takes precedence over user's.
1300 CK_INI_B User's init file takes precedence over the system-wide one.
1301 CK_LABELED Include support for SET FILE TYPE LABELED.
1302 CK_LBRK This version can send Long BREAK.
1303 CK_LINGER Add code to turn of TCP socket "linger" parameter.
1304 CK_MKDIR This version has a zmkdir() command to create directories.
1305 CK_NAWS Include TELNET Negotiate About Window Size support.
1306 CK_NEWTERM Use newterm() rather than initscr() to initialize curses.
1307 CK_PAM Include PAM authentication (might also require -lpam).
1308 CK_PCT_BAR Fullscreen file transfer display should include
1310 CK_POLL System-V or POSIX based UNIX has poll() function.
1311 CK_POSIX_SIG Use POSIX signal handing: sigjmp_buf, sigsetjmp,
1313 CK_READ0 read(fd,&x,0) can be used to test TCP/IP connections.
1314 CK_REDIR Enable the REDIRECT command.
1315 CK_RESEND Include the RESEND command (needs zfseek() + append).
1316 CK_RTSCTS RTS/CTS flow control is available.
1317 CK_SHADOW Include support for shadow passwords (e.g. for IKSD
1319 CK_SOCKBUF Enable TCP socket-buffer-size-increasing code.
1320 CK_SOCKS UNIX only: Build with socks library rather than regular
1322 CK_SOCKS5 UNIX only: Build with socks 5 lib rather than regular
1324 CK_SPEED Enable control-character unprefixing.
1325 CK_SYSINI="xxxxx" Quoted string to be used as system-wide init file
1327 CK_TIMERS Build with support for dynamically calculated packet
1329 CK_TMPDIR This version of Kermit has an isdir() function.
1330 CK_TTYFD Defined on systems where the communications connection file
1331 descriptor (ttyfd) can be passed to other processes as a command-line
1332 argument via \v(ttyfd).
1333 CK_URL Parse URLs as well as hostnames, etc.
1334 CK_XONXOFF Xon/Xoff flow control available.
1335 CK_XYZ Include support for XYZMODEM protocols.
1336 CK_WREFRESH Curses package includes wrefresh(),clearok() for screen
1338 CKFLOAT=type Floating-point data type, "double" or "float".
1339 CKTYP_H=xxx Force include of xxx as <types.h> file.
1340 CLSOPN When hanging up a tty device, also close and reopen it.
1341 CMDDEP Maximum recursion depth for self-referential user-defined fn's.
1342 COHERENT Build for Mark Williams Coherent UNIX
1343 CONGSPD Define if this version has congspd() routine in ck?tio.c
1344 datageneral Build for Data General AOS/VS or AOS/VS II
1345 DCLPOPEN popen() is available but needs to be declared
1346 DEC_TCPIP Build with support for DEC TCP/IP (UCX) for (Open)VMS
1347 DGUX430 Build for DG/UX 4.30
1348 DGUX540 Build for DG/UX 5.40
1349 DEFPAR=x Default parity, 0, 'e', 'o', 'm', or 's'.
1350 DFTTY=xxx Default communications device name.
1351 DIRENT UNIX directory structure to be taken from <dirent.h>.
1352 DIRPWDRP Prompt for password in REMOTE CWD command.
1353 DTILDE Include UNIX ~ notation for username/home-directory
1354 DYNAMIC Allocate file transfer packet buffers dynamically with malloc.
1355 ENCORE Build for Encore Multimax computers.
1356 EXCELAN Build with excelan TCP/IP.
1357 FNFLOAT Include floating-point math functions (logs, sin, cos, exp,
1359 FT18 Build for Fortune For:Pro 1.8.
1360 FT21 Build for Fortune For:Pro 2.1.
1361 GEMDOS Build for Atari ST GEMDOS.
1362 GFTIMER Use high-precision floating-point file-transfer timers.
1363 GID_T=xxx Group IDs are of type xxx (usually int, short, or gid_t).
1364 HADDRLIST If gethostbyname() hostent struct contains a list of
1366 HDBUUCP Build with support for Honey DanBer UUCP.
1367 HPUX Build for Hewlett Packard HP-UX.
1368 HPUX9 Build for Hewlett Packard HP-UX 9.x.
1369 HPUX10 Build for Hewlett Packard HP-UX 10.x.
1370 HWPARITY Define if this version can SET PARITY HARDWARE { EVEN,
1372 I386IX Build for Interactive System V R3.
1373 IFDEBUG Add IF stmts "if (deblog)" before "debug()" calls.
1374 INADDRX TCP/IP inet_addr() type is struct inaddr, not unsigned long.
1375 INTERLAN Build with support for Racal/Interlan TCP/IP.
1376 ISDIRBUG System defs of S_ISDIR and S_ISREG have bug, define
1378 ISIII Build for Interactive System III.
1379 IX370 Build for IBM IX/370.
1380 KANJI Build with Kanji character-set translation support.
1381 LCKDIR UUCP lock directory is /usr/spool/uucp/LCK/.
1382 LFDEVNO UUCP lockfile name uses device numbers, as in SVR4.
1383 LINUXFSSTND For Linux, use FSSTND UUCP lockfile conventions (default).
1384 LOCK_DIR=xxx UUCP lock directory is xxx (quoted string).
1385 LOCKF Use lockf() (in addition to lockfiles) on serial lines
1386 LONGFN BSD long filenames supported using <dir.h> and opendir().
1387 LYNXOS Build for Lynx OS 2.2 or later (POSIX-based).
1388 MAC Build for Apple Macintosh with Mac OS.
1389 MATCHDOT Make wildcards match filenames that start with period (.)
1390 MAXRP=number Maximum receive-packet length.
1391 MAXSP=number Maximum send-packet length.
1392 MDEBUG Malloc-debugging requested.
1393 MINIDIAL Minimum modem dialer support: CCITT, Hayes, Unkown, and None.
1394 MINIX Build for MINIX.
1395 MIPS Build for MIPS workstation.
1396 MULTINET Build with support for TGV MultiNet TCP/IP (VAX/VMS).
1397 M_UNIX Defined by SCO.
1398 NAP The nap() is available (conflicts with SELECT and USLEEP)
1399 NAPHACK The nap() call is available but only as syscall(3112,...)
1400 NDIR BSD long filenames supported using <ndir.h> and opendir().
1401 NDGPWNAM Don't declare getpwnam().
1402 NDSYSERRLIST Don't declare sys_errlist[].
1403 NEEDSELECTDEFS select() is avaible but we need to define FD_blah
1405 NETCMD Build with support for SET HOST /COMMAND and PIPE commands.
1406 NEXT Build for NeXT Mach 1.x or 2.x or 3.0, 3.1, or 3.2.
1407 NEXT33 Build for NeXT Mach 3.3.
1408 NOANSI Disable ANSI C function prototyping.
1409 NOAPC Do not include CK_APC code.
1410 NOARROWKEYS Exclude code to parse ANSI arrow-key sequences.
1411 NOB_xxxx Disable SET SPEED xxxx
1412 NOBIGBUF Override BIGBUFOK when it is the default
1413 NOBRKC Don't try to refer to t_brkc or t_eof tchars structure members.
1414 NOCKFQHOSTNAME Exclude code to get fully qualified hostname in case it
1416 NOCCTRAP Disable Control-C (SIGINT) trapping.
1417 NOCKSPEED Disable control-prefix removal feature (SET CONTROL).
1418 NOCKTIMERS Build without support for dynamic timers.
1419 NOCKXYZ Overrides CK_XYZ.
1420 NOCKREGEX Do not include [...] or {xxx,xxx,xxx} matching in ckmatch().
1421 NOCMDL Build with no command-line option processing.
1422 NOCOTFMC No Close(Open()) To Force Mode Change (UNIX version).
1423 NOCSETS Build with no support for character set translation.
1424 NOCYRIL Build with no support for Cyrillic character set translation.
1426 NODEBUG Build with no debug logging capability.
1427 NODIAL Build with no DIAL or SET DIAL commands.
1428 NODISPO Build to always refuse incoming MAIL or REMOTE PRINT files.
1429 DNODISPLAY Build with no file-transfer display.
1430 NOESCSEQ Build with no support for ANSI escape sequence recognition.
1431 NOFAST Do not make FAST Kermit protocol settings the default.
1432 NOFDZERO Do not use file descriptor 0 for remote-mode file transfer.
1433 NOFILEH Do not #include <sys/file.h>.
1434 NOFLOAT Don't include any floating-point data types or operations.
1435 NOFRILLS Build with "no frills" (this should be phased out...)
1436 NOFTRUNCATE Include this on UNIXes that don't have ftruncate().
1437 NOGETUSERSHELL Include this on UNIXes that don't have getusershell().
1438 NOGFTIMER Don't use high-precision floating-point file-transfer
1440 NOHEBREW Build with no support for Hebrew character sets.
1441 NOHELP Build with no built-in help.
1442 NOIKSD Build with IKSD support excluded.
1443 NOINITGROUPS Include this on UNIXes that don't have initgroups().
1444 NOICP Build with no interactive command parser.
1445 NOJC Build with no support for job control (suspend).
1446 NOKANJI Build with no support for Japanese Kanji character sets.
1447 NOKVERBS Build with no support for keyboard verbs (\Kverbs).
1448 NOLATIN2 Build with no ISO Latin-2 character-set translation support.
1449 NOLEARN Build with no support for learned scripts.
1450 NOLINKBITS Use of S_ISLNK and _IFLNK untrustworthy; use readlink()
1452 NOLOCAL Build without any local-mode features: No Making Connections.
1453 NOLOGDIAL Disable connection log.
1454 NOLOGIN Build without IKSD (network login) support.
1455 NOLSTAT Not OK to use lstat().
1456 NOMDMHUP Build without "modem-specific hangup" (e.g. ATH0) feature.
1457 NOMHHOST Exclude the multihomed-host TCP/IP code (if compilcation
1459 NOMINPUT Build without MINPUT command.
1460 NOMSEND Build with no MSEND command.
1461 NONAWS Do not include TELNET Negotiate About Window Size support.
1462 NONET Do not include any network support.
1463 NONOSETBUF (See NOSETBUF)
1464 NOPARSEN Build without automatic parity detection.
1465 NOPIPESEND Disable file transfer using pipes and filters.
1466 NOPOLL Override CK_POLL definition.
1467 NOPOPEN The popen() library call is not available.
1468 NOPURGE Build with no PURGE command.
1469 NOPUSH Build with no escapes to operating system.
1470 NOREALPATH In UNIX, realpath() function is not available.
1471 NORECALL Disable the command-recall feature.
1472 NOREDIRECT Disable REDIRECT command.
1473 NORENAME Don't use rename() system call, use link()/unlink() (UNIX).
1474 NORESEND Build with no RESEND command.
1475 NORETRY Build with no command-retry feature.
1476 NOSCRIPT Build with no SCRIPT command.
1477 NOSELECT Don't try to use select().
1478 NOSERVER Build with no SERVER mode and no server-related commands.
1479 NOSETBUF Don't make console writes unbuffered.
1480 NONOSETBUF DO make console writes unbuffered.
1481 NOSETREU setreuid() and/or setregid() not available.
1482 NOSHOW Build with no SHOW command (not recommended!).
1483 NOSIGWINCH Disable SIGWINCH signal trapping.
1484 NOSPL Build with no script programming language.
1485 NOSTAT Don't call stat() from mainline code.
1486 NOSYMLINK Include this for UNIXes that don't have readlink().
1487 NOSYSIOCTLH Do not #include <sys/ioctl.h>.
1488 NOSYSTIMEH Co not include <sys/time.h>.
1489 NOSYSLOG Disable syslogging code.
1490 NOTCPOPTS Build with no SET TCP options or underlying support.
1491 NOTLOG Build with no support for transaction logging.
1492 NOTM_ISDST Struct tm has no tm_isdst member.
1493 NOUNICODE Build with no support for Unicode character-set translation.
1494 NOURL Don't parse URLs
1495 NOUUCP Build with no UUCP lockfile support (dangerous!).
1496 NOWARN Make EXIT WARNING be OFF by default (otherwise it's ON).
1497 NOWREFRESH Override built-in definition of CK_WREFRESH (q.v.).
1498 NOXFER Build with no Kermit or other file-transfer protocols.
1499 NOXMIT Build with no TRANSMIT command.
1500 NOXPRINT Disables transparent print code.
1501 OLDMSG Use old "entering server mode" message (see [164]ckcmai.c).
1502 OLINUXHISPEED Build in old Linux hi-serial-speed code (for Linux <=
1504 OPENBSD Build for OpenBSD.
1506 OSF Build for OSF/1.
1507 OSFPC Build for OSF/1 on a PC.
1508 OSF32 Digital UNIX 3.2 or later.
1509 OSF40 Build for Digital UNIX 4.0.
1510 OSF50 Build for Digital UNIX 5.0.
1512 OXOS Build for Olivetti X/OS 2.3.
1513 PCIX Build for PC/IX
1514 PID_T=xxx Type for pids is xxx (normally int or pid_t).
1515 POSIX Build for POSIX: use POSIX header files, functions, etc.
1516 _POSIX_SOURCE Disable non-POSIX features.
1517 PROVX1 Build for Venix 1.0 on DEC Professional 3xx.
1518 PTX Build for Dynix/PTX
1519 PWID_T=xxx getpwid() type is xxx.
1520 RBSIZ=xxx Define overall size of receive-packet buffer (with DYNAMIC).
1521 RDCHK rdchk() system call is available.
1522 RENAME rename() system call is available (UNIX).
1523 RTAIX Build for AIX 2.2.1 on IBM RT PC.
1524 RTU Build for Masscomp / Concurrent RTU.
1525 SAVEDUID BSD or other non-AT&T UNIX has saved-setuid feature.
1526 SBSIZ=xxx Define overall size of send-packet buffer (use with
1528 SDIRENT Directory structure specified in <sys/dirent.h>.
1529 SELECT select() function available (conflicts with RDCHK and CK_POLL)
1530 SELECT_H Include <sys/select.h> for select()-releated definitions.
1531 SETEUID BSD 4.4-style seteXid() functions available.
1532 SIG_V Type for signal() is void. Used to override normal assumption.
1533 SIG_I Type for signal() is int. Used to override normal assumption.
1534 SOCKOPT_T Override default data type for get/setsockopt() option
1536 SOLARIS Build for Solaris.
1537 SOLARIS25 Build for Solaris 2.5 or later.
1538 SONYNEWS Build for Sony NEWS-OS.
1539 STERMIOX <sys/termiox.h> is available.
1540 STRATUS Build for Stratus VOS.
1541 STRATUSX25 Include Stratus VOS X.25 support.
1542 SUN4S5 Build for SUNOS 4.x in the System V R3 environment.
1543 SUNOS4 Build for SUNOS 4.0 in the BSD environment.
1544 SUNOS41 Build for SUNOS 4.1 in the BSD environment.
1545 SUNX25 Build with support for SunLink X.25.
1546 SVR3 Build for AT&T System V Release 3.
1547 SVR3JC Allow job control support on System V Release 3 UNIX versions.
1548 SVR4 Build for AT&T System V Release 4.
1549 SW_ACC_ID UNIX only -- swap real & effective ids around access()
1551 sxaE50 Build for PFU Compact A Series SX/A TISP.
1552 SYSLOGLEVEL=n Force syslogging at given level.
1553 SYSTIMEH Include <sys/time.h>.
1554 SYSUTIMEH Include <sys/utime.h> for setting file dates (88OPEN)
1555 TCPSOCKET Build with support for TCP/IP via Berkeley sockets library.
1556 TERMIOX <termiox.h> header file is available (mostly SVR4).
1557 TNCODE Include TELNET-specific code.
1558 TOWER1 Build for NCR Tower 1632 with OS 1.02.
1559 TRS16 Build for Tandy 16/6000.
1560 UID_T=xxx Type for uids is xxx (normally int or uid_t).
1561 UNIX Must be defined for all UNIX versions.
1562 UNIX351M AT&T UNIX 3.51m on the AT&T 7300 UNIX PC.
1563 USE_ARROWKEYS Include code to parse ANSI arrow-key sequences.
1564 USE_LSTAT OK to use lstat().
1565 USE_MEMCPY Define this if memcpy()/memset()/memmove() available.
1566 USE_STRERROR Define this if strerror() is available.
1567 USLEEP usleep() system call available (conflicts with NAP & SELECT).
1568 UTEK Build for Tektronix workstations with UTEK OS.
1569 UTIMEH Include <utime.h> for setting file dates (SVR4, POSIX)
1570 UTS24 Build for Amdahl UTS 2.4.
1571 V7 Build for Version 7 UNIX.
1572 VMS Build for VAX/VMS.
1573 VOID=xxx VOID type for functions (int or void).
1574 VXVE Build for CDC VX/VE 5.2.1.
1575 WAIT_T=xxx Type of argument passed to wait().
1576 WINTCP Build with Wollongong VAX/VMS TCP/IP (implies TCPSOCKET)
1577 WOLLONGONG Build with Wollongong UNIX TCP/IP (implies TCPSOCKET)
1578 XENIX Build for Xenix (SCO, Tandy, others).
1579 XNDIR Support for BSD long filenames via <sys/ndir.h>.
1580 XYZ_INTERNAL Support for XYZMODEM protocols is internal, not external.
1581 ZFCDAT Define this if zfcdat() function is available in Kermit.
1582 ZILOG Build for Zilog ZEUS.
1583 ZJDATE Has zjdate() function that converts date to Julian format.
1584 XPRINT Transparent print code included in CONNECT module.
1586 [ [165]Top ] [ [166]Contents ] [ [167]C-Kermit Home ] [ [168]Kermit
1588 _________________________________________________________________
1591 C-Kermit Configuration Options / [169]The Kermit Project /
1592 [170]Columbia University / [171]kermit@columbia.edu / 14 March 2003
1596 1. http://www.columbia.edu/kermit/
1597 2. http://www.columbia.edu/
1598 3. http://www.columbia.edu/kermit/ckccfg.html
1599 4. http://www.columbia.edu/kermit/ckermit.html
1600 5. http://www.columbia.edu/kermit/index.html
1601 6. http://www.columbia.edu/kermit/ckccfg.html#x1
1602 7. http://www.columbia.edu/kermit/ckccfg.html#x2
1603 8. http://www.columbia.edu/kermit/ckccfg.html#x3
1604 9. http://www.columbia.edu/kermit/ckccfg.html#x4
1605 10. http://www.columbia.edu/kermit/ckccfg.html#x5
1606 11. http://www.columbia.edu/kermit/ckccfg.html#x6
1607 12. http://www.columbia.edu/kermit/ckccfg.html#x7
1608 13. http://www.columbia.edu/kermit/ckccfg.html#x8
1609 14. http://www.columbia.edu/kermit/ckccfg.html#x9
1610 15. http://www.columbia.edu/kermit/ckccfg.html#x10
1611 16. http://www.columbia.edu/kermit/ckccfg.html#x11
1612 17. http://www.columbia.edu/kermit/ckccfg.html#x12
1613 18. http://www.columbia.edu/kermit/ckccfg.html#x13
1614 19. http://www.columbia.edu/kermit/ckccfg.html#x14
1615 20. http://www.columbia.edu/kermit/ckccfg.html#xa1
1616 21. http://www.columbia.edu/kermit/ckuins.html
1617 22. http://www.columbia.edu/kermit/ckermit.html
1618 23. http://www.columbia.edu/kermit/index.html
1619 24. http://www.columbia.edu/kermit/ckccfg.html#top
1620 25. http://www.columbia.edu/kermit/ckccfg.html#contents
1621 26. http://www.columbia.edu/kermit/ckccfg.html#x2
1622 27. http://www.columbia.edu/kermit/ckccfg.html#x0
1623 28. http://www.columbia.edu/kermit/ckermit.html
1624 29. http://www.columbia.edu/kermit/index.html
1625 30. http://www.columbia.edu/kermit/ckccfg.html#top
1626 31. http://www.columbia.edu/kermit/ckccfg.html#contents
1627 32. http://www.columbia.edu/kermit/ckccfg.html#x3
1628 33. http://www.columbia.edu/kermit/ckccfg.html#x1
1629 34. ftp://kermit.columbia.edu/kermit/c-kermit/ckutio.c
1630 35. ftp://kermit.columbia.edu/kermit/c-kermit/ckcdeb.h
1631 36. ftp://kermit.columbia.edu/kermit/c-kermit/ckuus3.c
1632 37. ftp://kermit.columbia.edu/kermit/c-kermit/ckcdeb.h
1633 38. ftp://kermit.columbia.edu/kermit/c-kermit/ckutio.c
1634 39. ftp://kermit.columbia.edu/kermit/c-kermit/ckutio.c
1635 40. http://www.columbia.edu/kermit/ckermit.html
1636 41. http://www.columbia.edu/kermit/index.html
1637 42. http://www.columbia.edu/kermit/ckccfg.html#top
1638 43. http://www.columbia.edu/kermit/ckccfg.html#contents
1639 44. http://www.columbia.edu/kermit/ckccfg.html#x4
1640 45. http://www.columbia.edu/kermit/ckccfg.html#x2
1641 46. ftp://kermit.columbia.edu/kermit/c-kermit/makefile
1642 47. http://www.columbia.edu/kermit/ckuins.html
1643 48. http://www.columbia.edu/kermit/ckuins.html#x4
1644 49. http://www.columbia.edu/kermit/ckuins.html#x9.2
1645 50. ftp://kermit.columbia.edu/kermit/c-kermit/ckuusx.c
1646 51. ftp://kermit.columbia.edu/kermit/c-kermit/ckutio.c
1647 52. ftp://kermit.columbia.edu/kermit/c-kermit/ckufio.c
1648 53. ftp://kermit.columbia.edu/kermit/c-kermit/ckuusx.c
1649 54. ftp://kermit.columbia.edu/kermit/c-kermit/ckucmd.c
1650 55. http://www.columbia.edu/kermit/ckermit.html
1651 56. http://www.columbia.edu/kermit/index.html
1652 57. http://www.columbia.edu/kermit/ckccfg.html#top
1653 58. http://www.columbia.edu/kermit/ckccfg.html#contents
1654 59. http://www.columbia.edu/kermit/ckccfg.html#x5
1655 60. http://www.columbia.edu/kermit/ckccfg.html#x3
1656 61. http://www.columbia.edu/kermit/unicode.html
1657 62. http://www.columbia.edu/kermit/ckermit.html
1658 63. http://www.columbia.edu/kermit/index.html
1659 64. http://www.columbia.edu/kermit/ckccfg.html#top
1660 65. http://www.columbia.edu/kermit/ckccfg.html#contents
1661 66. http://www.columbia.edu/kermit/ckccfg.html#x6
1662 67. http://www.columbia.edu/kermit/ckccfg.html#x4
1663 68. ftp://kermit.columbia.edu/kermit/c-kermit/ckuusr.h
1664 69. ftp://kermit.columbia.edu/kermit/c-kermit/ckuusr.h
1665 70. http://www.columbia.edu/kermit/ckermit.html
1666 71. http://www.columbia.edu/kermit/index.html
1667 72. http://www.columbia.edu/kermit/ckccfg.html#top
1668 73. http://www.columbia.edu/kermit/ckccfg.html#contents
1669 74. http://www.columbia.edu/kermit/ckccfg.html#x7
1670 75. http://www.columbia.edu/kermit/ckccfg.html#x5
1671 76. http://www.columbia.edu/kermit/ckccfg.html#x6.1
1672 77. http://www.columbia.edu/kermit/ckccfg.html#x6.2
1673 78. http://www.columbia.edu/kermit/ckccfg.html#x6.3
1674 79. http://www.columbia.edu/kermit/ckccfg.html#x6.4
1675 80. http://www.columbia.edu/kermit/ckccfg.html#x4
1676 81. http://www.columbia.edu/kermit/gkermit.html
1677 82. ftp://kermit.columbia.edu/kermit/c-kermit/ckuusr.h
1678 83. ftp://kermit.columbia.edu/kermit/c-kermit/ckcker.h
1679 84. ftp://kermit.columbia.edu/kermit/c-kermit/ckcdeb.h
1680 85. http://www.columbia.edu/kermit/ckermit.html
1681 86. http://www.columbia.edu/kermit/index.html
1682 87. http://www.columbia.edu/kermit/ckccfg.html#top
1683 88. http://www.columbia.edu/kermit/ckccfg.html#contents
1684 89. http://www.columbia.edu/kermit/ckccfg.html#x8
1685 90. http://www.columbia.edu/kermit/ckccfg.html#x6
1686 91. ftp://kermit.columbia.edu/kermit/c-kermit/ckudia.c
1687 92. http://www.columbia.edu/kermit/ckermit.html
1688 93. http://www.columbia.edu/kermit/index.html
1689 94. http://www.columbia.edu/kermit/ckccfg.html#top
1690 95. http://www.columbia.edu/kermit/ckccfg.html#contents
1691 96. http://www.columbia.edu/kermit/ckccfg.html#x9
1692 97. http://www.columbia.edu/kermit/ckccfg.html#x7
1693 98. http://www.columbia.edu/kermit/ckccfg.html#x8.1
1694 99. http://www.columbia.edu/kermit/ckccfg.html#x8.2
1695 100. http://www.columbia.edu/kermit/ckccfg.html#x8.3
1696 101. http://www.columbia.edu/kermit/ckccfg.html#x8.1.1
1697 102. http://www.columbia.edu/kermit/ckccfg.html#x8.1.2
1698 103. http://www.columbia.edu/kermit/ckccfg.html#x8.1.3
1699 104. http://www.columbia.edu/kermit/ckccfg.html#x8.1.4
1700 105. http://www.columbia.edu/kermit/ckccfg.html#x8.1.5
1701 106. http://www.columbia.edu/kermit/ckccfg.html#x8.1.6
1702 107. ftp://kermit.columbia.edu/kermit/c-kermit/ckcnet.h
1703 108. ftp://kermit.columbia.edu/kermit/c-kermit/ckctel.c
1704 109. ftp://kermit.columbia.edu/kermit/c-kermit/ckctel.c
1705 110. ftp://kermit.columbia.edu/kermit/c-kermit/ckctel.h
1706 111. ftp://kermit.columbia.edu/kermit/c-kermit/ckcftp.c
1707 112. http://www.columbia.edu/kermit/ckermit.html
1708 113. ftp://kermit.columbia.edu/kermit/c-kermit/ckcnet.c
1709 114. ftp://kermit.columbia.edu/kermit/c-kermit/ckcnet.h
1710 115. ftp://kermit.columbia.edu/kermit/c-kermit/ckutio.c
1711 116. http://www.columbia.edu/kermit/ckccfg.html#x11
1712 117. mailto:kermit@columbia.edu
1713 118. http://www.columbia.edu/kermit/ckermit.html
1714 119. http://www.columbia.edu/kermit/index.html
1715 120. http://www.columbia.edu/kermit/ckccfg.html#top
1716 121. http://www.columbia.edu/kermit/ckccfg.html#contents
1717 122. http://www.columbia.edu/kermit/ckccfg.html#x10
1718 123. http://www.columbia.edu/kermit/ckccfg.html#x8
1719 124. http://www.columbia.edu/kermit/ckermit.html
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1721 126. http://www.columbia.edu/kermit/ckccfg.html#top
1722 127. http://www.columbia.edu/kermit/ckccfg.html#contents
1723 128. http://www.columbia.edu/kermit/ckccfg.html#x11
1724 129. http://www.columbia.edu/kermit/ckccfg.html#x9
1725 130. http://www.columbia.edu/kermit/ckuins.html#x11
1726 131. http://www.columbia.edu/kermit/ckuins.html
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1730 135. http://www.columbia.edu/kermit/ckccfg.html#contents
1731 136. http://www.columbia.edu/kermit/ckccfg.html#x12
1732 137. http://www.columbia.edu/kermit/ckccfg.html#x10
1733 138. ftp://kermit.columbia.edu/kermit/c-kermit/ckucns.c
1734 139. ftp://kermit.columbia.edu/kermit/c-kermit/ckucon.c
1735 140. http://www.columbia.edu/kermit/ckermit.html
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1738 143. http://www.columbia.edu/kermit/ckccfg.html#contents
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1744 149. http://www.columbia.edu/kermit/ckccfg.html#contents
1745 150. http://www.columbia.edu/kermit/ckccfg.html#x14
1746 151. http://www.columbia.edu/kermit/ckccfg.html#x12
1747 152. ftp://kermit.columbia.edu/kermit/c-kermit/ckcdeb.h
1748 153. http://www.columbia.edu/kermit/ckermit.html
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1751 156. http://www.columbia.edu/kermit/ckccfg.html#contents
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1753 158. http://www.columbia.edu/kermit/ckermit.html
1754 159. http://www.columbia.edu/kermit/index.html
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1756 161. http://www.columbia.edu/kermit/ckccfg.html#contents
1757 162. ftp://kermit.columbia.edu/kermit/c-kermit/ckcdeb.h
1758 163. ftp://kermit.columbia.edu/kermit/c-kermit/ckcnet.h
1759 164. ftp://kermit.columbia.edu/kermit/c-kermit/ckcmai.c
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1765 170. http://www.columbia.edu/
1766 171. mailto:kermit@columbia.edu