Length of an indirect variable

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gettune

gettune(2)							System Calls Manual							gettune(2)

NAME

       gettune - get the value of a kernel tunable parameter

SYNOPSIS

DESCRIPTION

       This  function  retrieves  the  current value of the kernel tunable parameter named tunable.  The value is passed back through the supplied
       value pointer.  The value returned is the value for the tunable that is being used by the currently running kernel.

RETURN VALUE

       This function returns zero for success, or -1 for an error.

ERRORS

       If this function returns -1 to indicate an error, the global variable will be set to one of the following values,  to  indicate	the  error
       that occurred:

	      The specified tunable parameter does not exist.

	      The Kernel Registry Service was unavailable or encountered an error.

	      tunable	   or value specifies an address that is inaccessible.

WARNINGS

       Some tunables have signed integer values.  For these tunables, the caller must cast the returned value to an type before using it.  To find
       out which tunables have signed integer values, use the tuneinfo2(2) system call, or consult the tunable parameter man pages.

AUTHOR

       was developed by Hewlett-Packard Company.

SEE ALSO

       settune(2), tuneinfo2(2), and the individual tunable parameter man pages in section 5.

																	gettune(2)

Shell Programming and Scripting