SIMPLE SOLUTIONS

MEMFROB(3) - man page online | library functions

Frobnicate (encrypt) a memory area.

Chapter
2015-03-02
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.

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

strfry(3)

COLOPHON

This page is part of release 4.04 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 http://www.kernel.org/doc/man-pages/.
GNU 2015-03-02 MEMFROB(3)
This manual Reference Other manuals
memfrob(3) referred by bstring(3) | strfry(3)
refer to attributes(7) | feature_test_macros(7) | strfry(3)