#define _GNU_SOURCE /* See feature_test_macros(7) */
void *memfrob(void *s, size_t n);
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 suitable only for hiding strings.
The memfrob() function returns a pointer to the encrypted memory area.
The memfrob() function is unique to the GNU C Library.
This page is part of release 3.54 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/.
GNU 2010-09-10 MEMFROB(3)
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