ckuid(1M) ckuid(1M)
NAME
ckuid, erruid, helpuid, valuid - prompts for and validates a user ID
SYNOPSIS
/usr/bin/ckuid [-Q] [-W width] [-m] [-d default] [-h help] [-e error]
[-p prompt] [-k pid [-s signal]]
/usr/sadm/bin/erruid [-W] [-e error]
/usr/sadm/bin/helpuid [-W] [-m] [-h help]
/usr/sadm/bin/valuid input
DESCRIPTION
ckuid 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
will be returned if the user responds with a carriage return).
All messages are limited in length to 70 characters and are formatted
automatically. Any white space used in the definition (including new-
line) is stripped. The -W option cancels the automatic formatting.
When a tilde is placed at the beginning or end of a message defini-
tion, the default text will be 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 mes-
sage (as defined under NOTES) will be 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.
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OPTIONS
The options and arguments for this command are:
-Q Specifies that quit will not be allowed as a valid response.
-W Specifies that prompt, help and error messages will be format-
ted to a line length of width.
-m Displays a list of all logins when help is requested or when
the user makes an error.
-d Defines the default value as default. The default is not vali-
dated and so does not have to meet any criteria.
-h Defines the help messages as help.
-e Defines the error message as error.
-p Defines the prompt message as prompt.
-k Specifies that process ID pid is to be sent a signal if the
user chooses to abort.
-s 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.
input Input to be verified against /etc/passwd.
EXIT CODES
0 = Successful execution
1 = EOF on input
2 = Usage error
3 = User termination (quit)
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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.
Select the help option (?) for a list of valid login names.
(Last line appears only if the -m option of ckuid is used.)
The default help message is:
Please enter the login name of an existing user.
(If the -m option of ckuid is used, a list of valid groups is also
displayed.)
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 zero for success and non-zero for failure.
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