It is controlled by a script read from its standard input, details of which are
given below. There are two options. One is -t, which must be followed directly
by a number, to specify the command timeout in seconds (e.g. -t5). The default
-timeout is 1 second. The other option is -tls-on-connect, which causes the
+timeout is 5 seconds. The other option is -tls-on-connect, which causes the
client to try to start up a TLS session as soon as it has connected, without
using the STARTTLS command. The client program connects to the given IP address
and port, using the specified interface, if one is given.
-d causes the server to output debugging information
- -t sets a timeout in seconds (default 5) for when the server is
+ -t <sec> sets a timeout (default 5) for when the server is
awaiting an incoming connection
-noipv4 causes the server not to set up an IPv4 socket
-noipv6 causes the server not to set up an IPv6 socket
+ -i <sec> sets an initial pause, to delay before creating the listen sockets
+
By default, in an IPv6 environment, both kinds of socket are set up. However,
the test script knows which interfaces actually exist on the host, and it adds
-noipv4 or -noipv6 to the server command as required. An error occurs if both
(d) If the line starts with ">*eof", nothing is sent and the connection
is closed.
- The data that is sent starts after the initial '>' sequence.
+ The data that is sent starts after the initial '>' sequence. Within
+ each line the sequence '\x' followed by two hex digits can be used
+ to specify an arbitrary byte value. The sequence '\\' specifies a
+ single backslash.
(2) A line that starts with "*sleep" specifies a number of seconds to wait
before proceeding.
(5) Otherwise, the line defines the start of an input line that the client
is expected to send. To allow for lines that start with digits, the line
may start with '<', which is not taken as part of the input data. If the
- input does not match, the server bombs out with an error message.
+ lines starts with '<<' then only the characters are expected; no return-
+ linefeed terminator. If the input does not match, the server bombs out
+ with an error message. Backslash-escape sequences may be used in the
+ line content as for output lines.
Here is a simple example of server use in a test script: