CKUID(1) User Commands CKUID(1)

NAME

ckuid, erruid, helpuid, valuid - prompts for and validates a user ID

SYNOPSIS

ckuid [-Q] [-W width] [-m] [-d default] [-h help]
[-e error] [-p prompt] [-k pid [-s signal]]


/usr/sadm/bin/erruid [-W width] [-e error]


/usr/sadm/bin/helpuid [-W width] [-m] [-h help]


/usr/sadm/bin/valuid input

DESCRIPTION

The ckuid utility prompts a user and validates the response. It
defines, among other things, a prompt message whose response should
be an existing user ID, text for help and error messages, and a
default value (which are returned if the user responds with a
RETURN).


All messages are limited in length to 70 characters and are formatted
automatically. Any white space used in the definition (including
NEWLINE) is stripped. The -W option cancels the automatic formatting.
When a tilde is placed at the beginning or end of a message
definition, the default text is inserted at that point, allowing both
custom text and the default text to be displayed.


If the prompt, help or error message is not defined, the default
message (as defined under NOTES) is displayed.


Three visual tool modules are linked to the ckuid command. They are
erruid (which formats and displays an error message), helpuid (which
formats and displays a help message), and valuid (which validates a
response). These modules should be used in conjunction with FML
objects. In this instance, the FML object defines the prompt.

OPTIONS

The following options are supported:

-d default
Defines the default value as default. The default is
not validated and so does not have to meet any
criteria.


-e error
Defines the error message as error.


-h help
Defines the help messages as help.


-k pid
Specifies that process ID pid is to be sent a signal
if the user chooses to abort.


-m
Displays a list of all logins when help is requested or
when the user makes an error.


-p prompt
Defines the prompt message as prompt.


-Q
Specifies that quit will not be allowed as a valid
response.


-s signal
Specifies that the process ID pid defined with the -k
option is to be sent signal signal when quit is chosen.
If no signal is specified, SIGTERM is used.


-W width
Specifies that prompt, help and error messages will be
formatted to a line length of width.

OPERANDS

The following operand is supported:

input
Input to be verified against /etc/passwd.

EXIT STATUS

The following exit values are returned:

0
Successful execution.


1
EOF on input, or negative width on -W option, or usage error.


2
Usage error.


3
User termination (quit).

SEE ALSO

attributes(7)

NOTES

The default prompt for ckuid is:

Enter the login name of an existing user [?,q]:


The default error message is:

ERROR - Please enter the login name of an existing user.


If the -m option is used, the default error message is:

ERROR: Please enter one of the following login names: <List>


The default help message is:

Please enter the login name of an existing user.


If the -m option is used, the default help message is:

Please enter one of the following login names: <List>


When the quit option is chosen (and allowed), q is returned along
with the return code 3. The valuid module will not produce any
output. It returns 0 for success and non-zero for failure.

September 14, 1992 CKUID(1)