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The 640 MEG Shareware Studio 4
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The 640 Meg Shareware Studio CD-ROM Volume IV (Data Express)(1994).ISO
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rzsz0593.zip
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RZ.DOC
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1993-05-03
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11KB
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331 lines
RRRRZZZZ((((1111)))) OOOOmmmmeeeennnn TTTTeeeecccchhhhnnnnoooollllooooggggyyyy IIIINNNNCCCC ((((OOOOMMMMEEEENNNN)))) RRRRZZZZ((((1111))))
NNNNAAAAMMMMEEEE
rx, rc, rb, rz - Receive Files and Commands with X/Y/ZMODEM
SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
rrrrzzzz [- ttttvvvv]
rrrrbbbb [- ttttvvvv]
rrrrcccc [- ttttvvvv] _f_i_l_e
rrrrxxxx [- ttttvvvv] _f_i_l_e
ggggzzzz _f_i_l_e ...
[----][vvvv]rrrrzzzzCCCCOOOOMMMMMMMMAAAANNNNDDDD
LLLLIIIICCCCEEEENNNNSSSSEEEE AAAAGGGGRRRREEEEEEEEMMMMEEEENNNNTTTT
This is a Copyrighted shareware program. Commercial use of
this program is subject to licensing conditions detailed in
the rz.c source code. "Commercial Use" includes use of this
program to receive files from any commercial or shareware
program not published by Omen Technology INC.
Registration information is provided in the file mailer.rz.
Use of this program constitutes agreement to the License
Agreement.
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
This program uses error correcting protocols to receive
files over a dial-in serial port from a variety of programs
running under PC-DOS, CP/M, Unix, and other operating
systems. It is invoked from a shell prompt manually, or
automatically as a result of an "sz file ..." command given
to the calling program.
This program is not designed to be called from _c_u(_1),
_t_i_p(_1), or other communications programs. Unix flavors of
Omen Technology's Professional-YAM communications software
are available for dial-out applications. Unix
Professional-YAM supports dial-out applications with
telephone directory, a powerful script language with learn
function, high quality multiple protocol support, and UUCP
port arbitration.
RRRRzzzz (Receive ZMODEM) receives one or more files with the
ZMODEM protocol. Pathnames are supplied by the sending
program, and directories are made if necessary (and
possible). Normally, the "rz" command is automatically
issued by the calling ZMODEM program, but defective ZMODEM
implementations may require starting _r_z manually.
RRRRbbbb receives file(s) with YMODEM, accepting either standard
128 byte sectors or 1024 byte sectors (YAM sb ----kkkk option).
The user should determine when the 1024 byte block length
actually improves throughput.
Page 1 (printed 5/3/93)
RRRRZZZZ((((1111)))) OOOOmmmmeeeennnn TTTTeeeecccchhhhnnnnoooollllooooggggyyyy IIIINNNNCCCC ((((OOOOMMMMEEEENNNN)))) RRRRZZZZ((((1111))))
If True YMODEM (Omen Technology trademark) file information
(file length, etc.) is received, the file length controls
the number of bytes written to the output dataset, and the
modify time and file mode (iff non zero) are set
accordingly.
If True YMODEM file information is not received, slashes in
the pathname are changed to underscore, and any trailing
period in the pathname is eliminated. This conversion is
useful for files received from CP/M and other historical
systems.
RRRRcccc receives a single _f_i_l_e with XMODEM-CRC or XMODEM-1k-CRC
protocol. The user should determine when the 1024 byte
block length actually improves throughput without causing
problems. The user must supply the file name to both
sending and receiving programs. Up to 1023 garbage
characters may be added to the received file.
RRRRxxxx receives a single _f_i_l_e with XMODEM or XMODEM-1k protocol.
The user should determine when the 1024 byte block length
actually improves throughput without causing problems. The
user must supply the file name to both sending and receiving
programs. Up to 1023 garbage characters may be added to the
received file.
GGGGzzzz is a shell script which calls _s_z to command Pro-YAM or
ZCOMM to transmit the specified files. Pathnames used with
_g_z must be escaped if they have special significance to the
Unix shell.
EXAMPLE: gz "-a C:*.c D:*.h"
If invoked with a leading ``v'', _r_z will report progress to
/tmp/rzlog.
EXAMPLE: ln rz vrz; rz=vrz; export rz
If the SHELL environment variable includes _r_s_h or _r_k_s_h
(restricted shell), _r_z will not accept absolute pathnames or
references to a parent directory, will not modify an
existing file, and removes any files received in error.
The meanings of the available options are:
tttt ttttiiiimmmm
Change timeout to _t_i_m tenths of seconds.
vvvv Verbose causes a list of file names to be appended to
/tmp/rzlog . More v's generate more detailed debugging
output.
(Pro-YAM command)
<_A_L_T-_2>
Pro-YAM Command: _s_z *._h *._c
Page 2 (printed 5/3/93)
RRRRZZZZ((((1111)))) OOOOmmmmeeeennnn TTTTeeeecccchhhhnnnnoooollllooooggggyyyy IIIINNNNCCCC ((((OOOOMMMMEEEENNNN)))) RRRRZZZZ((((1111))))
(This automatically invokes _r_z on the connected system.)
DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
Exit status is as follows: 0 for successful transfers. 1 if
unrecoverable errors are detected. 2 if syntax errors or
file access problems are detected. 3 if the program was
terminated by a caught interrupt.
SSSSEEEEEEEE AAAALLLLSSSSOOOO
Professional-YAM, ZCOMM, DSZ, crc(omen), sz(omen),
usq(omen), undos(omen)
Compile time options required for various operating systems
are described in the source file.
NNNNOOOOTTTTEEEESSSS
We have received numerous reports of terminal servers
interfering with protocol file transfers. Sometimes special
terminal server commands correct the problem. In other
cases, the terminal server software is defective and must be
corrected.
ZMODEM's support of XOFF/XON flow control allows proper
operation in many environments that do not support XMODEM
uploads. Unfortunately, not all Unix versions support input
flow control. The TTY input buffering on some systems may
not adequately buffer long blocks or streaming input at high
speed. You should suspect this problem when you can't send
data to the Unix system at high speeds using ZMODEM,
YMODEM-1k or XMODEM-1k, but YMODEM with 128 byte blocks
works properly.
The DSZ or Pro-YAM zzzzmmmmooooddddeeeemmmm llll numeric parameter may be set to
a value between 64 and 1024 to limit the burst length
("zmodem pl128"). Although this compromises ZMODEM's
throughput, ZMODEM's superior reliability remains intact.
If a program that does not properly implement the specified
file transfer protocol causes _r_z to "hang" the port after a
failed transfer, either wait for _r_z to time out or keyboard
a dozen Ctrl-X characters. Every reported instance of this
problem has been corrected by using ZCOMM, Pro-YAM, DSZ, or
other program with a correct implementation of the specified
protocol.
Many programs claiming to support YMODEM only support XMODEM
with 1k blocks, and they often don't get that quite right.
In the case of a few poorly designed microcomputers, sending
serial data to a tty port at sustained high speeds has been
Page 3 (printed 5/3/93)
RRRRZZZZ((((1111)))) OOOOmmmmeeeennnn TTTTeeeecccchhhhnnnnoooollllooooggggyyyy IIIINNNNCCCC ((((OOOOMMMMEEEENNNN)))) RRRRZZZZ((((1111))))
known to cause lockups, system halts, kernel panics, and
occasional antisocial behaviour. This problem is not unique
to _r_z; newer versions of Kermit, CRT terminals with screen
transmission, and line noise have the same effect. When
experimenting with high speed input to a system, consider
rebooting the system if the file transfers are not
successful, especially if the personality of the system
appears altered.
The Unix "ulimit" parameter must be set high enough to
permit large file transfers to Unix.
Telebit modems must not be set to "spoof" UUCP, XMODEM,
YMODEM, or KERMIT. Setting one of these spoofing modes
interferes with other protoocls. Telebit's YMODEM spoofing
interferes with YMODEM transfers.
32 bit CRC code courtesy Gary S. Brown. Directory creation
code from John Gilmore's PD TAR program.
NNNNEEEETTTTWWWWOOOORRRRKKKK NNNNOOOOTTTTEEEESSSS
Escaping control characters (sz -E) may help if the transfer
gets stuck in the same place on every attempt.
Professional-YAM and ZCOMM allow selection of which control
characters need to be escaped.
In extreme cases 7-bit transmission may be required (see
Professional-YAM/ZCOMM manual). 7-bit transmission requires
rz version 4.40 or higher.
Please refer to the sz -T command in sz.doc for more help.
BBBBUUUUGGGGSSSS
This version of _r_z does not support some ZMODEM features.
Unix flavors of Professional-YAM may be linked to "rz" to
support these features.
The ASCII option's CR/LF to NL translation merely deletes
CR's; undos(omen) performs a more intelligent translation.
ZZZZMMMMOOOODDDDEEEEMMMM CCCCAAAAPPPPAAAABBBBIIIILLLLIIIITTTTIIIIEEEESSSS
_R_z supports ZMODEM command execution (zcommand), incoming
ZMODEM binary (-b), ASCII (-a), newer(-n), newer+longer(-N),
protect (-p), Crash Recovery(-r), clobber (-y),
match+clobber (-Y), compression(-Z), and append (-+)
requests. Other options sent by the sender are ignored.
The default is protect (-p) and binary (-b).
Unix Professional-YAM provides higher performance and other
features not supported by _r_z. Please contact Omen Technology
Inc for product information.
Page 4 (printed 5/3/93)
RRRRZZZZ((((1111)))) OOOOmmmmeeeennnn TTTTeeeecccchhhhnnnnoooollllooooggggyyyy IIIINNNNCCCC ((((OOOOMMMMEEEENNNN)))) RRRRZZZZ((((1111))))
Omen Technology INC
Post Office Box 4681
Portland OR 97208
503-621-3406
FFFFIIIILLLLEEEESSSS
rz.c, crctab.c, rbsb.c, zm.c, zmr.c, zmodem.h, rz.1
/tmp/rzlog stores debugging output generated with -vv option
Page 5 (printed 5/3/93)