08-27-2009
If you can push the argument out past 80 characters, it shouldn't show up on the "normal" ps output on both Linux and Solaris. IIRC both those copy the args to a structure available in /proc that's only 80 chars long.
Now, there may very well be other ways to get the arguments than from /proc via ps, and any user that can read the address space of the process certainly can get them. But that's at least a start.
That's a horrible kludge, though. It's best to not put sensitive data on command lines. If the data is sensitive enough that you don't want it visible, put it in a file and closely control the file permissions. You don't want to do that? Why? You were willing to put the sensitive data on a command line in a script, and a script is nothing more than a file.
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LEARN ABOUT ULTRIX
xtsetsensitive
XtSetSensitive(3Xt) MIT X11R4 XtSetSensitive(3Xt)
Name
XtSetSensitive, XtIsSensitive - set and check a widget's sensitivity state
Syntax
void XtSetSensitive(w, sensitive)
Widget w;
Boolean sensitive;
Boolean XtIsSensitive(w)
Widget w;
Arguments
sensitive Specifies a Boolean value that indicates whether the widget should receive keyboard and pointer events.
w Specifies the widget.
Description
The function first calls on the current widget with an argument list specifying that the sensitive field should change to the new value.
It then recursively propagates the new value down the managed children tree by calling on each child to set the ancestor_sensitive to the
new value if the new values for sensitive and the child's ancestor_sensitive are not the same.
calls to change sensitive and ancestor_sensitive. Therefore, when one of these changes, the widget's set_values procedure should take
whatever display actions are needed (for example, greying out or stippling the widget).
maintains the invariant that if parent has either sensitive or ancestor_sensitive then all children have ancestor_sensitive
The function returns or to indicate whether or not user input events are being dispatched. If both core.sensitive and core.ancestor_sensi-
tive are returns otherwise, it returns
See Also
X Window System Toolkit: The Complete Programmer's Guide and Specification, Paul J. Asente and Ralph Swick
X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys
XtSetSensitive(3Xt)