I am not making this up.
NAME
strfry - randomize a string
SYNOPSIS
#include <string.h>
char *strfry(char *string);
DESCRIPTION
The strfry() function randomizes the contents of string by using
rand(3) to randomly swap characters in the string. The result is an
anagram of string.
RETURN VALUE
The strfry() functions returns a pointer to the randomized string.
CONFORMING TO
The strfry() function is unique to the Linux C Library and GNU C
Library.