1PR3287(1) General Commands Manual PR3287(1)
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6 pr3287 - IBM host printing tool
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9 pr3287 [options] [L:][Y:][LUname[,LUname...]@]hostname[:port][=accept]
10
12 pr3287 opens a telnet connection to an IBM host, and emulates an IBM
13 3287 printer. It implements RFCs 2355 (TN3270E), 1576 (TN3270) and
14 1646 (LU name selection).
15 If the hostname is prefixed with L:, the connection will be made
17 through an SSL/TLS tunnel. If the hostname is also prefixed with Y:,
18 the host's SSL/TLS certificate will not be checked. pr3287 also sup‐
19 ports TELNET START-TLS option negotiation without any need for command-
20 line options.
21 A specific LU name to use may be specified by prepending it to the
23 hostname with an `@'. Multiple LU names to try can be separated by
24 commas. An empty LU can be placed in the list with an extra comma.
25 The port to connect to defaults to telnet. This can be overridden by
27 appending a port to the hostname with a colon `:'.
28 An accept name (a name to compare to the host's SSL/TLS certificate)
30 may be specified by appending it with an equals sign.
31
33 pr3287 understands the following options:
34 -accepthostname name
36 Specifies a particular hostname to accept when validating the
37 name presented in the server SSL certificate, instead of compar‐
38 ing to the name used to make the connection. name can either be
39 any (OpenSSL only), which disables name validation, or a spe‐
40 cific name.
41 -assoc LUname
43 Causes the session to be associated with the specified LUname.
44 -blanklines
46 In LU3 formatted mode, print blank lines even if they are all
47 NULLs or control characters. (This is a violation of the 3270
48 printer protocol, but some hosts require it.)
49 -cadir directory
51 Specifies a directory containing CA (root) certificates to use
52 when verifying a certificate provided by the host. (OpenSSL
53 only)
54 -cafile filename
56 Specifies a PEM-format file containing CA (root) certificates to
57 use when verifying a certificate provided by the host. (OpenSSL
58 only)
59 -certfile filename
61 Specifies a file containing a certificate to provide to the
62 host. The default file type is PEM (OpenSSL) or PKCS12 (MacOS).
63 -certfiletype type
65 Specifies the type of the certificate file specified by -cert‐
66 file. Type can be pem or asn1. (OpenSSL only)
67 -chainfile filename
69 Specifies a certificate chain file in PEM format, containing a
70 certificate to provide to the host, as well as one or more
71 intermediate certificates and the CA certificate used to sign
72 that certificate. If -chainfile is specified, it overrides
73 -certfile. (OpenSSL only)
74 -clientcert name
76 Specifies the name of a client certificate to provide to the
77 host. It must be installed in the keychain. (MacOS only)
78 -charset name
80 Specifies an alternate host code page (input EBCDIC mapping).
81 The default maps the U.S. English (037) code page to the current
82 locale character encoding. pr3287 generally supports the same
83 host character sets as x3270.
84 -command command
86 Specifies the command to run for each print job. The default is
87 lpr.
88 -crlf Causes newline characters in the output to be expanded to car‐
90 riage-return/linefeed sequences.
91 -crthru
93 In unformatted 3270 mode, causes EBCDIC CR orders to be passed
94 to directly to the printer as ASCII CR characters, and the out‐
95 put buffer to be flushed, instead of being specially interpreted
96 by pr3287.
97 By default, EBCDIC CRs cause the (virtual) print head to return
99 to column 0, so that subsequent text overwrites what is already
100 in the buffer, and the buffer is flushed only when an EBCDIC NL
101 or EM order is received.
102 -daemon
104 Causes pr3287 to become a daemon (background) process.
105 -eojtimeout seconds
107 Causes pr3287 to complete the print job after seconds seconds of
108 inactivity.
109 -emflush
111 Causes pr3287 to flush any pending printer output whenever an EM
112 (End of Medium) order arrives in unformatted 3270 mode. This
113 can help preserve multi-page output with hosts that do not clear
114 the 3270 buffer between pages. (Note: This option is defined
115 for historical purposes only; -emflush is now the default.)
116 -noemflush
118 Causes pr3287 not to flush any pending printer output when an EM
119 (End of Medium) order arrives in unformatted 3270 mode.
120 -ignoreeoj
122 Ignore TN3270E PRINT-EOJ commands, relying on UNBIND commands to
123 indicate the ends of print jobs.
124 -ffeoj Causes pr3287 to add a FF (formfeed) at the end of each print
126 job.
127 -ffskip
129 Causes pr3287 to ignore a FF (formfeed) order if it occurs at
130 the top of a page.
131 -ffthru
133 In SCS mode, causes pr3287 to pass FF (formfeed) orders through
134 to the printer as ASCII formfeed characters, rather than simu‐
135 lating them based on the values of the MPL (maximum presentation
136 line) and TM (top margin) parameters.
137 -keyfile filename
139 Specifies a file containing the private key for the certificate
140 file (specified via -certfile or -chainfile). The default file
141 type is PEM. (OpenSSL only)
142 -keyfiletype type
144 Specifies the type of the private key file specified by -key‐
145 file. Type can be pem or asn1. (OpenSSL only)
146 -keypasswd type:value
148 Specifies the password for the private key file, if it is
149 encrypted. The argument can be file:filename, specifying that
150 the password is in a file, or string:string, specifying the
151 password on the command-line directly.
152 -mpp n Specifies a non-default value for the Maximum Presentation Posi‐
154 tion (the line length for unformatted Write commands). The
155 default is 132. The minimum is 40 and the maximum is 256.
156 -noverifycert
159 Do not verify the host certificate for SSL/TLS connections.
160 -proxy type:host[:port]
162 Causes pr3287 to connect via the specified proxy, instead of
163 using a direct connection. The host can be an IP address or
164 hostname. The optional port can be a number or a service name.
165 For a list of supported proxy types, see PROXY below.
166 -reconnect
168 Causes pr3287 to reconnect to the host, whenever the connection
169 is broken. There is a 5-second delay between reconnect
170 attempts, to reduce network thrashing for down or misconfigured
171 hosts.
172 -skipcc
174 For unformatted writes, skip ASA carriage control characters
175 (e.g., blank for single-space, 0 for double-space, 1 for form‐
176 feed, etc.) in the first position of each line of host output.
177 -trace Turns on data stream tracing. Trace information is usually
179 saved in the file /tmp/x3trc.pid.
180 -tracedir dir
182 Specifies the directory to save trace files in, instead of /tmp.
183 -trnpre file
185 Specifies a file containing data that will be sent to the
186 printer before each print job. The file contents are treated as
187 transparent data, i.e., they are not translated in any way.
188 -trnpost file
190 Specifies a file containing data that will be sent to the
191 printer after each print job. The file contents are treated as
192 transparent data, i.e., they are not translated in any way.
193 -v Display build and version information and exit.
195 -verifycert
197 Verify the host certificate for SSL/TLS connections. (This is
198 the default setting.)
199 -xtable file
201 Specifies a file containing transparent data translations. The
202 file specifies EBCDIC characters that will be translated into
203 transparent ASCII data (data that will not be further translated
204 and will not count as taking up column(s) on the print line).
205 Any printable ECBDIC code can be translated to zero or more
206 ASCII characters.
207 The table consists of lines that look like:
209 ebcdic ebcdic-code ascii ascii-code...
210 The ebcdic-code can be specified in hexadecimal X'nn' notation
213 or as numbers in decimal, octal (with a leading 0) or hexadeci‐
214 mal (with a leading 0x). The ascii-codes can be specified as
215 numbers in decimal, octal or hexadecimal, control codes such as
216 ^X, symbolic control codes such as CR or Escape, or as double-
217 quoted strings, following the full C-language conventions, such
218 as \r for a carriage return. Comments begin with #, ! or //.
219 Here are some examples of translations.
221 # Expand EBCDIC D to an escape sequence.
222 ebcdic X'C4' ascii Esc "]1,3" 0x6d
223 # Delete EBCDIC B's
224 ebcdic X'C2' ascii
225 The full list of symbolic control codes is: BS CR BEL ESC ESCAPE
227 FF HT LF NL NUL SPACE TAB VT.
228
230 SIGINT, SIGHUP and SIGTERM cause the current print job to be flushed
231 (any pending data to be printed) and pr3287 to exit.
232 SIGUSR1 causes the current print job to be flushed without otherwise
234 affecting the pr3287 process.
235
238 The -proxy option causes pr3287 to use a proxy server to connect to the
239 host. The syntax of the option is:
240 type:host[:port]
241 The supported values for type are:
243 Proxy Type Protocol Default Port
245 ──────────────────────────────────────────────
246 http RFC 2817 HTTP 3128
247 tunnel (squid)
248 passthru Sun in.telnet-gw none
249 socks4 SOCKS version 4 1080
250 socks5 SOCKS version 5 1080
251 (RFC 1928)
252 telnet No protocol (just none
253 send connect host
254 port)
255 The special types socks4a and socks5d can also be used to force the
257 proxy server to do the hostname resolution for the SOCKS protocol.
258
260 x3270(1), c3270(1), telnet(1), tn3270(1)
261 Data Stream Programmer's Reference, IBM GA23-0059
262 Character Set Reference, IBM GA27-3831
263 3174 Establishment Controller Functional Description, IBM GA23-0218
264 RFC 1576, TN3270 Current Practices
265 RFC 1646, TN3270 Extensions for LUname and Printer Selection
266 RFC 2355, TN3270 Enhancements
267
269 Copyright 1993-2020, Paul Mattes.
270 Copyright 1990, Jeff Sparkes.
271 Copyright 1989, Georgia Tech Research Corporation (GTRC), Atlanta, GA
272 30332.
273 All rights reserved.
274 Redistribution and use in source and binary forms, with or without
276 modification, are permitted provided that the following conditions are
277 met:
278 * Redistributions of source code must retain the above copyright
281 notice, this list of conditions and the following disclaimer.
282 * Redistributions in binary form must reproduce the above
284 copyright notice, this list of conditions and the following
285 disclaimer in the documentation and/or other materials provided
286 with the distribution.
287 * Neither the names of Paul Mattes, Jeff Sparkes, GTRC nor the
289 names of their contributors may be used to endorse or promote
290 products derived from this software without specific prior
291 written permission.
292 THIS SOFTWARE IS PROVIDED BY PAUL MATTES, JEFF SPARKES AND GTRC `AS IS'
294 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
295 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
296 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PAUL MATTES, JEFF SPARKES OR
297 GTRC BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
298 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
299 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
300 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
301 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
302 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
303 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
304
306 pr3287 4.0ga12
307 26 September 2020 PR3287(1)