#include "misc.h"

#include <blue/core/random.h>

void z__b_io_generate_tmp_filename(char *out, size_t len)
{
	static const char *alphabet
		= "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
		  "01234567"
		  "89+=-_.";
	static const size_t alphabet_len = 67;

	b_random_ctx *ctx = b_random_global_ctx();

	for (size_t i = 0; i < len; i++) {
		int v = b_random_next_int64(ctx) % alphabet_len;
		out[i] = alphabet[v];
	}

	out[len - 1] = 0;
}