memfrob(template) - phpMan

MEMFROB(3)                 Linux Programmer's Manual                MEMFROB(3)

NAME
       memfrob - frobnicate (encrypt) a memory area
SYNOPSIS
       #define _GNU_SOURCE             /* See feature_test_macros(7) */
       #include <string.h>
       void *memfrob(void *s, size_t n);
DESCRIPTION
       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.
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.
SEE ALSO
       strfry(3)
COLOPHON
       This page is part of release 3.53 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)