MEMFROB(3) - man page online | library functions

Frobnicate (encrypt) a memory area.

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
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)