The memfrob() function
encrypts the first n
bytes of the memory area s by exclusive-ORing each
character with the number 42. The effect can be reversed by
using memfrob() on the
encrypted memory area.
Note that this function is not a proper encryption routine
as the XOR constant is fixed, and is only suitable for hiding
strings.
RETURN VALUE
The memfrob() function
returns a pointer to the encrypted memory area.
CONFORMING TO
The memfrob() function is
unique to the GNU C Library.
This page is part of release 2.79 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man-pages/.
Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
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Formatted or processed versions of this manual, if unaccompanied by
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References consulted:
Linux libc source code
Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
386BSD man pages
Modified Sat Jul 24 18:54:45 1993 by Rik Faith (faith@cs.unc.edu)