Linux libc derandomizer

libc-unrandom.c

#include <unistd.h>

ssize_t getrandom(void *buf, size_t buflen, unsigned int flags) {
	memset(buf, 0, buflen);
	return buflen;}

//gcc -shared -fPIC -o libc-unrandom.so libc-unrandom.c -ldl
//LD_PRELOAD=./libc-unrandom.so python -c "import random; print(random.random())"
//LD_PRELOAD=./libc-unrandom.so shuf -e 1 2 3
//LD_PRELOAD=./libc-unrandom.so bash
//  echo $SRANDOM