NIO CommKit Host Interface Installation and System Administration Manual

3-20

Control Tables (from AT&T 255-110-127)

srvtab

Initial Parms Field

The initial parms ﬁeld (ﬁxed program arguments ﬁeld) of a server table

entry speciﬁes the initial (ﬁxed) arguments for the invoked program. The

colon-separated arguments from the server table will be passed to the

invoked program starting as the zero argument. If the ﬂag is present in the

server table entry, additional arguments obtained from the incoming remote

execution channel will follow the initial arguments when the program is

invoked.

Initial arguments may consist of, or be embedded with, one or more tokens

(sometimes referred to as special codes) that may be used to substitute infor-

mation from the dialstring. Each token is a two-character string consisting

of a percent sign (%), followed by a single alphabetic character. Invalid

tokens are silently removed and are not expanded.

Table 3-3 summarizes the values and descriptions of the allowed substitution

tokens. Since some older versions of the Datakit II VCS common controller

do not support certain features, the substitution string may turn out to be

null.

Table 3-3 Program Arguments Speciﬁcation

Specification Description

%b The baud rate of the calling terminal. This token is not expanded

if the incoming call did not originate from a port providing baud

rate information. (For example, hosts currently do not provide

this).

%c Originating channel number of the call being serviced.

%d The dialed server name (for example, host). This does not include

the period or anything after it.

%e The service field of the dialstring (for example, pupu).

%f The originating group name of the caller (for example,

1c/sporty/hotrod).

%h The local server name.

%l The originator, as known to the local node.

%m The originating module number of the call being serviced.

%n The originating data switch node name.

%o The type of originating device.

%p Parameters from the dialstring. The parameters are reparsed so that

colons may be used to produce separate arguments.