[getopt]: support for long options
Long options are quite useful, too
committer: Markus Bröker <mbroeker@largo.homelinux.org>
/**
* lsflib/src/xor.c
* Copyright (C) 2008 Markus Broeker
*/
#include <string.h>
char *xor (char *s, char key)
{
int i;
for (i = 0; i < strlen (s); i++)
s[i] ^= key;
return s;
}