memfrob
− frobnicate (encrypt) a memory area
SYNOPSIS
edit#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <string.h>
void *memfrob(void *s, size_t n);
DESCRIPTION
editThe 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 suitable only for hiding strings.
RETURN VALUE
editThe memfrob()
function returns a pointer to the encrypted memory area.
ATTRIBUTES
editFor an explanation of the terms used in this section, see attributes
(7).
CONFORMING TO
editThe memfrob()
function is unique to the GNU C Library.
SEE ALSO
editbstring
(3), strfry
(3)
COLOPHON
editThis page is part of release 4.16 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man−pages/.