Randomize a string in C

Question

I\'m trying to generate random permutations of an 80-character fixed string in C. Much to my dismay, the system I\'m working on lacks strfry(). What\'s the best way for me to

Answer 1

create a 80-line array, put a character and a random number into each line of the array, then sort the array on the random numbers.

Rebuild string from sorted array.