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Document new options and behavior of SEXYZ. 

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Synchronet External X/Y/Zmodem (SEXYZ) File Transfer Protocol Driver Synchronet External X/Y/ZMODEM (SEXYZ) File Transfer Protocol Driver
-------------------------------------------------------------------- --------------------------------------------------------------------
$Id$ $Id$
...@@ -7,8 +7,8 @@ Overview ...@@ -7,8 +7,8 @@ Overview
-------- --------
SEXYZ was developed as a native (32-bit) TCP/socket-based replacement for the SEXYZ was developed as a native (32-bit) TCP/socket-based replacement for the
16-bit DOS file transfer drivers (e.g. FDSZ, CE-XYZ, etc.) that we've been 16-bit DOS file transfer drivers (e.g. FDSZ, CE-XYZ, etc.) that we've been
stuck with on Win32 BBSes for FAR too long. While SEXYZ was designed with stuck with on 32-bit BBSes for FAR too long. While SEXYZ was designed with
Synchronet BBSes in mind, it should also work with other Win32* BBS packages Synchronet BBSes in mind, it should also work with other 32-bit BBS packages
that have the ability to pass socket descriptors to external file transfer that have the ability to pass socket descriptors to external file transfer
protocol drivers. protocol drivers.
...@@ -24,15 +24,12 @@ SEXYZ has several advantages over legacy drivers like FDSZ and CE-XYZ: ...@@ -24,15 +24,12 @@ SEXYZ has several advantages over legacy drivers like FDSZ and CE-XYZ:
o Socket-based (no need for FOSSIL drivers or virtual COM ports/UARTs) o Socket-based (no need for FOSSIL drivers or virtual COM ports/UARTs)
o Multi-tasking friendly (does not needlessly consume CPU cycles) o Multi-tasking friendly (does not needlessly consume CPU cycles)
o Supports long filenames (e.g. not just DOS "8.3" formatted names) o Supports long filenames (e.g. not just DOS "8.3" formatted names)
o Supports Ymodem-G (FDSZ does not) o Supports YMODEM-G and XMODEM-G (FDSZ does not)
o Handles Telnet IAC escaping and option negotiations o Handles Telnet IAC escaping and option negotiations (optionally)
o Transfers files over fast connections (e.g. 100KB/sec) without issue o Transfers files over fast connections (e.g. 100KB/sec) without issue
o Actively developed and supported o Actively developed and supported
o Open source (at cvs.synchro.net)! o Open source (at cvs.synchro.net)!
* SEXYZ can also be built for use (natively) on Linux and other Unix variants
(e.g. FreeBSD).
Distribution Distribution
------------ ------------
...@@ -53,9 +50,12 @@ ftp://ftp.synchro.net ...@@ -53,9 +50,12 @@ ftp://ftp.synchro.net
ftp://vert.synchro.net ftp://vert.synchro.net
telnet://vert.synchro.net telnet://vert.synchro.net
SEXYZ can also be built from the C source code for use (natively) on Linux
and other Unix variants (e.g. FreeBSD).
For a client implementation of SEXYZ, use the SyncTerm Telnet/RLogin/SSH For a client implementation of SEXYZ, use the SyncTerm Telnet/RLogin/SSH
terminal program (http://syncterm.bbsdev.net/), available for many platforms, terminal program (http://syncterm.net/), available for many platforms,
including Win32 and *nix. including Win32, *nix, and Mac OS-X.
Command-line Syntax Command-line Syntax
...@@ -67,22 +67,25 @@ usage: sexyz <socket> [-opts] <cmd> [file | path | @list] ...@@ -67,22 +67,25 @@ usage: sexyz <socket> [-opts] <cmd> [file | path | @list]
socket = TCP socket descriptor (or leave blank for "stdio" mode on Unix) socket = TCP socket descriptor (or leave blank for "stdio" mode on Unix)
opts = -y to overwrite files when receiving opts = -y allow overwriting of existing files when receiving
-o disable Zmodem CRC-32 mode (use CRC-16) -o disable ZMODEM CRC-32 mode (force CRC-16 mode instead)
-s disable Zmodem streaming (Slow Zmodem) -s disable ZMODEM streaming (Slow ZMODEM)
-2 set maximum Zmodem block size to 2K -k enable X/YMODEM-1K send mode
-4 set maximum Zmodem block size to 4K -c enable XMODEM-CRC receive mode
-8 set maximum Zmodem block size to 8K (ZedZap) -g enable X/YMODEM-G receive mode (no error recovery)
-2 set maximum ZMODEM block size to 2K
-4 set maximum ZMODEM block size to 4K
-8 set maximum ZMODEM block size to 8K (ZedZap)
-! to pause after abnormal exit (error) -! to pause after abnormal exit (error)
-telnet to enable Telnet mode (the default) -telnet to enable Telnet mode (the default)
-rlogin to enable RLogin (pass-through) mode -rlogin to enable RLogin (pass-through) mode
cmd = v to display detailed version information cmd = v to display detailed version information
sx to send Xmodem rx to recv Xmodem sx to send XMODEM rx to receive XMODEM
sX to send Xmodem-1K rc to recv Xmodem-CRC sX to send XMODEM-1K rc to receive XMODEM-CRC
sy to send Ymodem ry to recv Ymodem sy to send YMODEM ry to receive YMODEM
sY to send Ymodem-1K rg to recv Ymodem-G sY to send YMODEM-1K rg to receive YMODEM-G
sz to send Zmodem rz to recv Zmodem sz to send ZMODEM rz to receive ZMODEM
file = filename to send or receive file = filename to send or receive
path = directory to receive files into path = directory to receive files into
...@@ -93,11 +96,13 @@ NOTE: SEXYZ actually supports either "+list" or "@list" syntax for specifying ...@@ -93,11 +96,13 @@ NOTE: SEXYZ actually supports either "+list" or "@list" syntax for specifying
a file list on the command-line. If the list file doesn't exist, it'll a file list on the command-line. If the list file doesn't exist, it'll
treat the '+' or '@' as part of the filename to send or receive. treat the '+' or '@' as part of the filename to send or receive.
NOTE: SEXYZ also supports "rz/sz" command-line syntax for some commands. NOTE: SEXYZ also supports "rz/sz style" command-line syntax for some commands.
Examples: "sexyz -c rx" to recv Xmodem-CRC Examples: "sexyz -c rx" to recv XMODEM-CRC (same as "sexyz rc")
"sexyz -k sx" to send Xmodem-1K "sexyz -k sx" to send XMODEM-1K (same as "seyxz sX")
"sexyz rb" to recv Ymodem "sexyz rb" to recv YMODEM (same as "sexyz ry")
"sexyz -k sb" to send Ymodem-1K "sexyz -k sb" to send YMODEM-1K (same as "sexyz sY")
"sexyz -g ry" to recv YMODEM-G (same as "sexyz rg")
"sexyz -g rx" to recv XMODEM-G
Installation for Synchronet v3.12-Win32 Installation for Synchronet v3.12-Win32
...@@ -112,7 +117,7 @@ SCFG:File Options->Transfer Protocols: ...@@ -112,7 +117,7 @@ SCFG:File Options->Transfer Protocols:
[File Transfer Protocol] [File Transfer Protocol]
1: Mnemonic (Command Key) X 1: Mnemonic (Command Key) X
2: Protocol Name Xmodem (SEXYZ) 2: Protocol Name XMODEM (SEXYZ)
3: Access Requirements 3: Access Requirements
4: Upload Command Line %!sexyz%. %h -%p rC %f 4: Upload Command Line %!sexyz%. %h -%p rC %f
5: Download Command Line %!sexyz%. %h -%p sX %f 5: Download Command Line %!sexyz%. %h -%p sX %f
...@@ -125,7 +130,7 @@ SCFG:File Options->Transfer Protocols: ...@@ -125,7 +130,7 @@ SCFG:File Options->Transfer Protocols:
[File Transfer Protocol] [File Transfer Protocol]
1: Mnemonic (Command Key) Y 1: Mnemonic (Command Key) Y
2: Protocol Name Ymodem (SEXYZ) 2: Protocol Name YMODEM (SEXYZ)
3: Access Requirements 3: Access Requirements
4: Upload Command Line %!sexyz%. %h -%p ry %f 4: Upload Command Line %!sexyz%. %h -%p ry %f
5: Download Command Line %!sexyz%. %h -%p sY %f 5: Download Command Line %!sexyz%. %h -%p sY %f
...@@ -138,7 +143,7 @@ SCFG:File Options->Transfer Protocols: ...@@ -138,7 +143,7 @@ SCFG:File Options->Transfer Protocols:
[File Transfer Protocol] [File Transfer Protocol]
1: Mnemonic (Command Key) G 1: Mnemonic (Command Key) G
2: Protocol Name Ymodem-G (SEXYZ) 2: Protocol Name YMODEM-G (SEXYZ)
3: Access Requirements 3: Access Requirements
4: Upload Command Line %!sexyz%. %h -%p rg %f 4: Upload Command Line %!sexyz%. %h -%p rg %f
5: Download Command Line %!sexyz%. %h -%p sY %f 5: Download Command Line %!sexyz%. %h -%p sY %f
...@@ -151,7 +156,7 @@ SCFG:File Options->Transfer Protocols: ...@@ -151,7 +156,7 @@ SCFG:File Options->Transfer Protocols:
[File Transfer Protocol] [File Transfer Protocol]
1: Mnemonic (Command Key) Z 1: Mnemonic (Command Key) Z
2: Protocol Name Zmodem (SEXYZ) 2: Protocol Name ZMODEM (SEXYZ)
3: Access Requirements 3: Access Requirements
4: Upload Command Line %!sexyz%. %h -%p rz %f 4: Upload Command Line %!sexyz%. %h -%p rz %f
5: Download Command Line %!sexyz%. %h -%p sz %f 5: Download Command Line %!sexyz%. %h -%p sz %f
...@@ -166,7 +171,7 @@ Optional/Advanced: ...@@ -166,7 +171,7 @@ Optional/Advanced:
[File Transfer Protocol] [File Transfer Protocol]
1: Mnemonic (Command Key) 8 1: Mnemonic (Command Key) 8
2: Protocol Name Zmodem-8K (SEXYZ) 2: Protocol Name ZMODEM-8K (SEXYZ)
3: Access Requirements 3: Access Requirements
4: Upload Command Line %!sexyz%. %h -%p rz %f 4: Upload Command Line %!sexyz%. %h -%p rz %f
5: Download Command Line %!sexyz%. %h -%p -8 sz %f 5: Download Command Line %!sexyz%. %h -%p -8 sz %f
...@@ -177,8 +182,8 @@ Optional/Advanced: ...@@ -177,8 +182,8 @@ Optional/Advanced:
10: Supports DSZLOG Yes 10: Supports DSZLOG Yes
11: Socket I/O Yes 11: Socket I/O Yes
NOTE: It is suggested you remove existing FDSZ or CE-XYZ transfer protocol NOTE: It is suggested you remove existing FDSZ, CE-XYZ, or sz/rz transfer
entries as they are no longer needed. protocol entries as they are no longer needed.
Example configuration for Mystic v1.08-Win32 Example configuration for Mystic v1.08-Win32
...@@ -187,14 +192,14 @@ Example configuration for Mystic v1.08-Win32 ...@@ -187,14 +192,14 @@ Example configuration for Mystic v1.08-Win32
A. Active : Yes A. Active : Yes
B. HotKey : Z B. HotKey : Z
C. Description: Zmodem C. Description: ZMODEM
D. Batch : No D. Batch : No
E. Send Cmd : c:\mystic\prots\sexyz.exe %0 sz %3 E. Send Cmd : c:\mystic\prots\sexyz.exe %0 sz %3
F. Receive Cmd: c:\mystic\prots\sexyz.exe %0 rz %3 F. Receive Cmd: c:\mystic\prots\sexyz.exe %0 rz %3
A. Active : Yes A. Active : Yes
B. HotKey : Z B. HotKey : Z
C. Description: Zmodem batch C. Description: ZMODEM batch
D. Batch : Yes D. Batch : Yes
E. Send Cmd : c:\mystic\prots\sexyz.exe %0 sz @%3 E. Send Cmd : c:\mystic\prots\sexyz.exe %0 sz @%3
F. Receive Cmd: c:\mystic\prots\sexyz.exe %0 rz %3 F. Receive Cmd: c:\mystic\prots\sexyz.exe %0 rz %3
...@@ -204,7 +209,7 @@ Example configuration for EleBBS-Win32 ...@@ -204,7 +209,7 @@ Example configuration for EleBBS-Win32
-------------------------------------- --------------------------------------
(provided by Mike Ehlert, aka pcm) (provided by Mike Ehlert, aka pcm)
Name Zmodem (SEXYZ) Name ZMODEM (SEXYZ)
Key Z Key Z
Ext ctl file No Ext ctl file No
Batch Yes Batch Yes
...@@ -222,7 +227,7 @@ Log desc word 0 ...@@ -222,7 +227,7 @@ Log desc word 0
You will need to have the environment variable DSZLOG set to DSZ.LOG. You will need to have the environment variable DSZLOG set to DSZ.LOG.
It should *not* have a path of course, so that it's created in the current It should *not* have a path of course, so that it's created in the current
nodes directory. node's directory.
Once you define that under control panel > system > env variables > system Once you define that under control panel > system > env variables > system
variables, be sure to close the window running eleserv or telsrv and reopen variables, be sure to close the window running eleserv or telsrv and reopen
...@@ -240,9 +245,9 @@ Synchronet for Unix (prior to v3.14) did not support socket-based file ...@@ -240,9 +245,9 @@ Synchronet for Unix (prior to v3.14) did not support socket-based file
transfer protocols, so SEXYZ is only currently supported on Synchronet for transfer protocols, so SEXYZ is only currently supported on Synchronet for
Unix (v3.13 and older) in "stdio" mode. Unix (v3.13 and older) in "stdio" mode.
You can enable "stdio" mode in SEXYZ by removing '%h' (the socket descriptor) You can use "stdio" mode in SEXYZ by removing '%h' (the socket descriptor)
from the above command-lines. If you're using Synchronet for Unix v3.14 or from the above command-lines. If you're using Synchronet for Unix v3.14 or
later, socket I/O mode is preferred (do not enable "stdio" mode). later, socket I/O mode is preferred (do not use "stdio" mode).
Optional Initialization File (sexyz.ini) Optional Initialization File (sexyz.ini)
...@@ -274,23 +279,29 @@ Example .ini file (with default values given): ...@@ -274,23 +279,29 @@ Example .ini file (with default values given):
OutbufDrainTimeout=10 ; milliseconds before auto-flush OutbufDrainTimeout=10 ; milliseconds before auto-flush
ProgressInterval=1 ; interval (in seconds) of progress display ProgressInterval=1 ; interval (in seconds) of progress display
[Xmodem] [XMODEM]
SendTimeout=10 ; seconds SendTimeout=10 ; seconds
RecvTimeout=10 ; seconds RecvTimeout=10 ; seconds
ByteTimeout=3 ; seconds ByteTimeout=3 ; seconds
AckTimeout=10 ; seconds AckTimeout=10 ; seconds
BlockSize=1024 ; 128 or 1024 BlockSize=1024 ; 128 or 1024
MaxErrors=10 MaxBlockSize=1024 ; 128 or 1024
G_Delay=1 ; millisecond yield between sent Ymodem-G blocks MaxErrors=9
G_Delay=1 ; millisecond yield between sent X/YMODEM-G blocks
[Zmodem] SendG=TRUE ; Support G-mode for X/YMODEM sends
SendCRC=TRUE ; Support CRC-16 error detection for X/YMODEM sends
[YMODEM]
FallbackToXMODEM=0 ; Failed send attempts before falling back to XMODEM
[ZMODEM]
InitTimeout=10 ; seconds InitTimeout=10 ; seconds
SendTimeout=15 ; seconds SendTimeout=15 ; seconds
RecvTimeout=20 ; seconds RecvTimeout=20 ; seconds
CrcTimeout=60 ; seconds CrcTimeout=60 ; seconds
BlockSize=1024 ; 1024 is usually best to start with BlockSize=1024 ; 1024 is usually best to start with
MaxBlockSize=1024 ; 1024 is "true" Zmodem, 8192 for Zmodem-8K (ZedZap) MaxBlockSize=1024 ; 1024 is "true" ZMODEM, 8192 for ZMODEM-8K (ZedZap)
MaxErrors=10 ; maximum number of consecutive errors MaxErrors=9 ; maximum number of consecutive errors
RecvBufSize=0 ; specify non-zero for partial streaming receives RecvBufSize=0 ; specify non-zero for partial streaming receives
Streaming=TRUE ; set to FALSE to disable streaming (block-at-a-time) Streaming=TRUE ; set to FALSE to disable streaming (block-at-a-time)
CRC32=TRUE ; set to FALSE to force CRC-16 instead CRC32=TRUE ; set to FALSE to force CRC-16 instead
...@@ -306,31 +317,41 @@ Example .ini file (with default values given): ...@@ -306,31 +317,41 @@ Example .ini file (with default values given):
Compatibility Compatibility
------------- -------------
The Xmodem, Ymodem, and Zmodem file transfers should be compatible with any The XMODEM, YMODEM, and ZMODEM file transfers should be compatible with any
terminal programs or remote protocol drivers that conform to the public terminal programs or remote protocol drivers that conform to the public
specifications for these protocols written by Chuck Forsberg (Xmodem was specifications for these protocols written by Chuck Forsberg (XMODEM was
actually written by Ward Christensen, but was extended and documented by our actually written by Ward Christensen, but was extended by others and
good friend, Chuck). documented by our good friend, Chuck).
SEXYZ supports the following protocols and their popular permutations: SEXYZ supports the following protocols and their popular permutations:
Xmodem: 128 byte blocks, 8-bit checksum error detection XMODEM: 128-byte blocks, 8-bit checksum error detection
Xmodem-CRC: 128 byte blocks, 16-bit CRC error detection XMODEM-CRC: 128-byte blocks, 16-bit CRC error detection
Xmodem-1K: 1024 byte blocks, 16-bit CRC error detection XMODEM-1K: 1024-byte blocks, 16-bit CRC error detection
Ymodem: 128 byte blocks, 16-bit CRC error detection, batch file transfers XMODEM-G: 1024-byte blocks, 16-bit CRC error detection, and streaming
Ymodem-1K: 1024 byte blocks, 16-bit CRC error detection, batch file transfers (no acknowledgements or error recovery) (a.k.a. QMODEM-G)
Ymodem-G: 1024 byte blocks, 16-bit CRC error detection, batch file transfers YMODEM: 128-byte blocks, 16-bit CRC error detection, batch file transfers
and streaming (no acknowledgements) YMODEM-1K: 1024-byte blocks, 16-bit CRC error detection, batch file transfers
Zmodem: 1024 byte blocks, 16-bit or 32-bit CRC error detection, batch file YMODEM-G: 1024-byte blocks, 16-bit CRC error detection, batch file transfers
and streaming (no acknowledgements or error recovery)
ZMODEM: 1024-byte blocks, 16-bit or 32-bit CRC error detection, batch file
transfers, resume, auto-download, and more transfers, resume, auto-download, and more
Zmodem-8K: 8192 byte blocks, 16-bit or 32-bit CRC error detection, batch file ZMODEM-8K: 8192-byte blocks, 16-bit or 32-bit CRC error detection, batch file
transfers, resume, auto-download, and more (a.k.a. ZedZap) transfers, resume, auto-download, and more (a.k.a. ZedZap)
As of this writing, the current version of SEXYZ and the X/Zmodem modules are: SEXYZ will automatically fall back from 1024-byte block XMODEM/YMODEM send
mode to 128-byte block XMODEM/YMODEM send mode if the receiver does not appear
to support 1024-byte blocks.
sexyz.c 1.77 SEXYZ also supports automatically falling back from XMODEM/YMODEM-CRC to
xmodem.c 1.26 <-- Includes Ymodem XMODEM/YMODEM-Checksum mode when sending to a receiver that does not support
zmodem.c 1.71 CRC-16 error detection.
As of this writing, the current version of SEXYZ and the X/ZMODEM modules are:
sexyz.c 1.81
xmodem.c 1.36 <-- Includes YMODEM
zmodem.c 1.77
SEXYZ for Win32 has been tested successfully with the following Telnet clients SEXYZ for Win32 has been tested successfully with the following Telnet clients
/terminal programs: /terminal programs:
...@@ -339,7 +360,7 @@ SEXYZ for Win32 has been tested successfully with the following Telnet clients ...@@ -339,7 +360,7 @@ SEXYZ for Win32 has been tested successfully with the following Telnet clients
OS: Linux OS: Linux
Version: 1.2.2 Version: 1.2.2
URL: ftp://ibiblio.org/pub/Linux/system/network/telnet/ URL: ftp://ibiblio.org/pub/Linux/system/network/telnet/
Tested: Zmodem uploads and downloads Tested: ZMODEM uploads and downloads
Failed: none Failed: none
[HyperTerminal Private Edition] [HyperTerminal Private Edition]
...@@ -347,9 +368,9 @@ By: Hilgraeve, Inc. ...@@ -347,9 +368,9 @@ By: Hilgraeve, Inc.
OS: Win32 OS: Win32
Version: 6.3 Version: 6.3
URL: http://www.hilgraeve.com/htpe/ URL: http://www.hilgraeve.com/htpe/
Tested: Xmodem (checksum and CRC), Xmodem-1K, Ymodem-1K, Ymodem-G and Zmodem Tested: XMODEM (checksum and CRC), XMODEM-1K, YMODEM-1K, YMODEM-G and ZMODEM
both uploads and downloads both uploads and downloads
Failed: Zmodem uploads (CRC errors detected): appears to be the fault of Failed: ZMODEM uploads (CRC errors detected): appears to be the fault of
HyperTerminal and can be reproduced with any protocol driver on the HyperTerminal and can be reproduced with any protocol driver on the
BBS/server side (even FDSZ) BBS/server side (even FDSZ)
...@@ -358,7 +379,7 @@ By: enigma ...@@ -358,7 +379,7 @@ By: enigma
OS: Win32 OS: Win32
Version: 1.0 (beta 12)/w32 Version: 1.0 (beta 12)/w32
URL: http://ozone.eesc.com URL: http://ozone.eesc.com
Tested: Zmodem uploads and downloads Tested: ZMODEM uploads and downloads
Failed: none Failed: none
[NetRunner] [NetRunner]
...@@ -366,8 +387,8 @@ By: Mystic Software Development (James Coyle/g00r00) ...@@ -366,8 +387,8 @@ By: Mystic Software Development (James Coyle/g00r00)
OS: Win32 OS: Win32
Version: 0.09 Version: 0.09
URL: www.mysticbbs.com URL: www.mysticbbs.com
Tested: Zmodem uploads and downloads Tested: ZMODEM uploads and downloads
Failed: Zmodem uploads (CRC errors detected): appears to be the fault of Failed: ZMODEM uploads (CRC errors detected): appears to be the fault of
NetRunner and can be reproduced with any protocol driver on the NetRunner and can be reproduced with any protocol driver on the
BBS/server side (FDSZ and CEXYZ both failed in the same manner) BBS/server side (FDSZ and CEXYZ both failed in the same manner)
...@@ -376,7 +397,7 @@ By: EmTec, Innovative Software, Markus Schmidt ...@@ -376,7 +397,7 @@ By: EmTec, Innovative Software, Markus Schmidt
OS: Win32 OS: Win32
Version: 5.02 Version: 5.02
URL: http://www.emtec.com URL: http://www.emtec.com
Tested: Xmodem, Ymodem, Zmodem uploads and downloads Tested: XMODEM, YMODEM, ZMODEM uploads and downloads
Failed: none Failed: none
...@@ -392,24 +413,26 @@ the "sexyz v" command. We're also very interested in reports of compatibility ...@@ -392,24 +413,26 @@ the "sexyz v" command. We're also very interested in reports of compatibility
Credits Credits
------- -------
The Xmodem (a.k.a. MODEM, MODEM2, XMODEM) protocol was originally created by The XMODEM (a.k.a. MODEM, MODEM2) protocol was originally created by Ward
Ward Christensen in 1977. Christensen in 1977.
The XMODEM-CRC protocol (XMODEM derivative using a 16-CRC for error detection
rather than XMODEM's 8-bit checksum) was created by John Mahr.
The Ymodem (a.k.a. YMODEM) and Zmodem (a.k.a. ZMODEM) protocols were created The YMODEM, YMODEM-G and ZMODEM protocols were created and documented by Chuck
and documented (poorly) by Chuck Forsberg; Ymodem being primarily a set of Forsberg; YMODEM being primarily a set of enhancements to Ward's XMODEM and
enhancements to Ward's Xmodem protocol. Ymodem-G (a.k.a. YMODEM-g) was also Mahr's XMODEM-CRC protocols.
created by Chuck.
The X/Ymodem code used in SEXYZ was written by Rob Swindell <rob [at] synchro The X/YMODEM code used in SEXYZ was written by Rob Swindell <rob [at] synchro
[dot] net>, migrated from the Synchronet Transfer Protocols (STP) program [dot] net>, migrated from the Synchronet Transfer Protocols (STP) program
circa 1997. circa 1997.
The Unix "stdio" mode support in SEXYZ was written by Stephen Hurd (a.k.a. The Unix "stdio" mode support in SEXYZ was written by Stephen Hurd (a.k.a.
Deuce) of Synchronix/FreeBSD Synchronet stardom and "scary code" infamy. Deuce) of Synchronix/FreeBSD Synchronet stardom and "scary code" infamy.
The Zmodem code in SEXYZ is based on zmtx/zmrx v1.02 (C) Mattheij Computer The ZMODEM code in SEXYZ is based on zmtx/zmrx v1.02 (C) Mattheij Computer
Service 1994 by Jacques Mattheij <jacquesm [at] hacktic [dot] nl>. Although Service 1994 by Jacques Mattheij <jacquesm [at] hacktic [dot] nl>. Although
SEXYZ's Zmodem code no longer resembles zmtx/zmrx much, it served as a good SEXYZ's ZMODEM code no longer resembles zmtx/zmrx much, it served as a good
starting point, and Jacques' version of Chuck's ZMODEM.DOC was very helpful! starting point, and Jacques' version of Chuck's ZMODEM.DOC was very helpful!
The 16-bit CRC table and calculation macro was (unwittingly) contributed by The 16-bit CRC table and calculation macro was (unwittingly) contributed by
...@@ -422,5 +445,5 @@ SEXYZ includes portions of the Synchronet XPDEV and SMBLIB libraries which ...@@ -422,5 +445,5 @@ SEXYZ includes portions of the Synchronet XPDEV and SMBLIB libraries which
are licensed under the GNU Lesser General Public License (LGPL). are licensed under the GNU Lesser General Public License (LGPL).
http://www.fsf.org/licensing/licenses/lgpl.txt http://www.fsf.org/licensing/licenses/lgpl.txt
Synchronet BBS software is written by and copyright 2006 Rob Swindell. Synchronet BBS software is written by and copyright 2008 Rob Swindell.
http://www.synchro.net/docs/copyright.html http://www.synchro.net/docs/copyright.html
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