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-'\" t
-.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.\" 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)
-.TH memfrob 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-memfrob \- frobnicate (obfuscate) a memory area
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.BR "#define _GNU_SOURCE" "             /* See feature_test_macros(7) */"
-.B #include <string.h>
-.P
-.BI "void *memfrob(void " s [. n "], size_t " n );
-.fi
-.SH DESCRIPTION
-The
-.BR memfrob ()
-function obfuscates the first \fIn\fP bytes of the
-memory area \fIs\fP by exclusive-ORing each character with the number
-42.
-The effect can be reversed by using
-.BR memfrob ()
-on the
-obfuscated memory area.
-.P
-Note that this function is not a proper encryption routine as the XOR
-constant is fixed, and is suitable only for hiding strings.
-.SH RETURN VALUE
-The
-.BR memfrob ()
-function returns a pointer to the obfuscated memory
-area.
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface	Attribute	Value
-T{
-.na
-.nh
-.BR memfrob ()
-T}	Thread safety	MT-Safe
-.TE
-.SH STANDARDS
-GNU.
-.SH SEE ALSO
-.BR bstring (3),
-.BR strfry (3)