app/key.c


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#include "project.h"


int have_key;

static size_t key_len;

static uint8_t key[512];


void
key_wipe (void)
{
  have_key = 0;
  locked = 0;
  memset (key, 0, sizeof (key));
}


void
key_set (char *in, size_t len)
{
  if (len > sizeof (key))
    len = sizeof (key);
  memcpy (key, in, len);
  key_len = len;
  locked = 0;
  have_key = 1;
}


void
key_send (void)
{
  size_t i;
  if (!have_key)
    {
      send_str ("*no key*\n");
      return;
    }
  if (locked)
    {
      send_str ("*locked*\n");
      return;
    }

  for (i = 0; i < key_len; ++i)
    {
      send_ascii (key[i]);
    }

  locked++;
}


void
key_init (void)
{
  key_wipe ();
  have_key = 0;
}