bionic (3) memfrob.3.gz

Provided by: manpages-dev_4.15-1_all bug

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.


ATTRIBUTES
       For an explanation of the terms used in this section, see attributes(7).

       ┌──────────┬───────────────┬─────────┐
       │Interface │ Attribute     │ Value   │
       ├──────────┼───────────────┼─────────┤
       │memfrob() │ Thread safety │ MT-Safe │
       └──────────┴───────────────┴─────────┘

CONFORMING TO
       The memfrob() function is unique to the GNU C Library.


SEE ALSO
       bstring(3), strfry(3)


COLOPHON
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       information  about  reporting  bugs,  and  the  latest  version  of  this   page,   can   be   found   at
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