/* convert.c  --  Wrapper to S/Key binary-to-English routines.
      Daniel L. McDonald  --  U. S. Naval Research Laboratory. */

#include <string.h>

/* eng2key() assumes words must be separated by spaces only.

   eng2key() returns

   1 if succeeded
   0 if word not in dictionary
   -1 if badly formed string
   -2 if words are okay but parity is wrong.
   (see etob() in S/Key)
*/

int eng2key(keyout,eng)
char *keyout,*eng;
{
  int rc=0,state=1;
  char *eng2;

  /* Find pointer to word 7. */

  for (eng2 = eng; rc<7 && (*(++eng2) != '\0'); )
    if (*eng2 != ' ')
      {
        rc += state;
        state = 0;
      }
    else state=1;

  if ( (rc = etob(keyout,eng)) != 1)
    return rc;

  rc = etob(keyout+8,eng2);

  return rc;
}

/* key2eng() assumes string referenced by
   engout has at least 60 characters
   (4*12 + 11 spaces + '\0') of space.

   key2eng() returns pointer to engout.

*/

char *key2eng(engout,key)
char *engout,*key;
{
  btoe(engout,key);
  strcat(engout," ");
  btoe(engout+strlen(engout),key+8);
}