#include #include /* This assumes that a check for the template size has already been made */ char *__randname(char *template) { int i; struct timespec ts; unsigned long r; __clock_gettime(CLOCK_REALTIME, &ts); r = ts.tv_nsec*65537 ^ (uintptr_t)&ts / 16 + (uintptr_t)template; for (i=0; i<6; i++, r>>=5) template[i] = 'A'+(r&15)+(r&16)*2; return template; }