NAME
echoscu - DICOM verification (C-ECHO) SCU
SYNOPSIS
echoscu [options] peer port
DESCRIPTION
The echoscu application implements a Service Class User (SCU) for the
Verification SOP Class. It sends a DICOM C-ECHO message to a Service
Class Provider (SCP) and waits for a response. The application can be
used to verify basic DICOM connectivity.
PARAMETERS
peer hostname of DICOM peer
port tcp/ip port number of peer
OPTIONS
general options
-h --help
print this help text and exit
--version
print version information and exit
-v --verbose
verbose mode, print processing details
-d --debug
debug mode, print debug information
network options
application entity titles:
-aet --aetitle aetitle: string
set my calling AE title (default: ECHOSCU)
-aec --call aetitle: string
set called AE title of peer (default: ANY-SCP)
association negotiation debugging:
-pts --propose-ts [n]umber: integer (1..28)
propose n transfer syntaxes
-ppc --propose-pc [n]umber: integer (1..128)
propose n presentation contexts
other network options:
-to --timeout [s]econds: integer (default: unlimited)
timeout for connection requests
-ta --acse-timeout [s]econds: integer (default: 30)
timeout for ACSE messages
-td --dimse-timeout [s]econds: integer (default: unlimited)
timeout for DIMSE messages
-pdu --max-pdu [n]umber of bytes: integer [4096..131072]
set max receive pdu to n bytes (default: 16384)
--repeat [n]umber: integer
repeat n times
--abort
abort association instead of releasing it
transport layer security (TLS) options
transport protocol stack options:
-tls --disable-tls
use normal TCP/IP connection (default)
+tls --enable-tls [p]rivate key file, [c]ertificate file: string
use authenticated secure TLS connection
+tla --anonymous-tls
use secure TLS connection without certificate
private key password options (only with --enable-tls):
+ps --std-passwd
prompt user to type password on stdin (default)
+pw --use-passwd [p]assword: string
use specified password
-pw --null-passwd
use empty string as password
key and certificate file format options:
-pem --pem-keys
read keys and certificates as PEM file (default)
-der --der-keys
read keys and certificates as DER file
certification authority options:
+cf --add-cert-file [c]ertificate filename: string
add certificate file to list of certificates
+cd --add-cert-dir [c]ertificate directory: string
add certificates in d to list of certificates
ciphersuite options:
+cs --cipher [c]iphersuite name: string
add ciphersuite to list of negotiated suites
+dp --dhparam [f]ilename: string
read DH parameters for DH/DSS ciphersuites
pseudo random generator options:
+rs --seed [f]ilename: string
seed random generator with contents of f
+ws --write-seed
write back modified seed (only with --seed)
+wf --write-seed-file [f]ilename: string (only with --seed)
write modified seed to file f
peer authentication options:
-rc --require-peer-cert
verify peer certificate, fail if absent (default)
-vc --verify-peer-cert
verify peer certificate if present
-ic --ignore-peer-cert
don’t verify peer certificate
NOTES
DICOM Conformance
The echoscu application supports the following SOP Classes as an SCU:
VerificationSOPClass 1.2.840.10008.1.1
Unless the --propose-ts option is used, the echoscu application will
only propose the transfer syntax
LittleEndianImplicitTransferSyntax 1.2.840.10008.1.2
COMMAND LINE
All command line tools use the following notation for parameters:
square brackets enclose optional values (0-1), three trailing dots
indicate that multiple values are allowed (1-n), a combination of both
means 0 to n values.
Command line options are distinguished from parameters by a leading ’+’
or ’-’ sign, respectively. Usually, order and position of command line
options are arbitrary (i.e. they can appear anywhere). However, if
options are mutually exclusive the rightmost appearance is used. This
behaviour conforms to the standard evaluation rules of common Unix
shells.
In addition, one or more command files can be specified using an ’@’
sign as a prefix to the filename (e.g. @command.txt). Such a command
argument is replaced by the content of the corresponding text file
(multiple whitespaces are treated as a single separator) prior to any
further evaluation. Please note that a command file cannot contain
another command file. This simple but effective approach allows to
summarize common combinations of options/parameters and avoids longish
and confusing command lines (an example is provided in file
share/data/dumppat.txt).
ENVIRONMENT
The echoscu utility will attempt to load DICOM data dictionaries
specified in the DCMDICTPATH environment variable. By default, i.e. if
the DCMDICTPATH environment variable is not set, the file
<PREFIX>/lib/dicom.dic will be loaded unless the dictionary is built
into the application (default for Windows).
The default behaviour should be preferred and the DCMDICTPATH
environment variable only used when alternative data dictionaries are
required. The DCMDICTPATH environment variable has the same format as
the Unix shell PATH variable in that a colon (’:’) separates entries.
The data dictionary code will attempt to load each file specified in
the DCMDICTPATH environment variable. It is an error if no data
dictionary can be loaded.
COPYRIGHT
Copyright (C) 1994-2005 by Kuratorium OFFIS e.V., Escherweg 2, 26121
Oldenburg, Germany.