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Full Discussion: Secure a KSH script
Top Forums Shell Programming and Scripting Secure a KSH script Post 302432972 by methyl on Monday 28th of June 2010 06:42:20 AM
Old 06-28-2010
If you do it with "trap" I'd trap "1 2 3" but not "15" (Hangup) or you will accumulate orphan shells when users disconnect their session.

Personally I'd use "stty" to disable the keys.
First run "stty -a" to find out what keys you wish to disable.
Then set each relevant key to null:
Code:
e.g.
stty intr ""
stty quit ""
stty eof ""
stty kill ""

 

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cbreak(3XCURSES)					  X/Open Curses Library Functions					  cbreak(3XCURSES)

NAME
cbreak, nocbreak, noraw, raw - set input mode controls SYNOPSIS
cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib -R /usr/xpg4/lib -lcurses [ library... ] c89 [ flag... ] file... -lcurses [ library... ] #include <curses.h> int cbreak(void); int nocbreak(void); int noraw(void); int raw(void); DESCRIPTION
The cbreak() function enables the character input mode. This overrides any previous call to the raw() function and turns the stty flag ICANON off. The nocbreak() function sets the line canonical mode and turns the stty flag ICANON on without touching the ISIG or IXON flags. The noraw() function sets the line canonical mode and turns the stty flags ICANON, ISIG, and IXON all on. The raw() function sets the character input mode and turns the stty flags ICANON, ISIG, and IXON all off. This mode provides maximum con- trol over input. It is important to remember that the terminal may or may not be in character mode operation initially. Most interactive programs require cbreak() to be enabled. RETURN VALUES
On success, these functions return OK. Otherwise, they return ERR. ERRORS
None. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
getch(3XCURSES), halfdelay(3XCURSES), nodelay(3XCURSES), timeout(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5), termio(7I) SunOS 5.11 5 Jun 2002 cbreak(3XCURSES)
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