/* strncat.c - strncat */

/*------------------------------------------------------------------------
 *  strncat  -  Concatenate s2 onto the end of s1.  Sufficient space must
 *                      exist at the end of s1; ar most n characters are
 *                      copied
 *------------------------------------------------------------------------
 */
char    *strncat(
          char          *s1,            /* first string                 */
          const char    *s2,            /* second string                */
          int           n               /* length to concatenate        */
        )
{
    char *os1;

    os1 = s1;
    while (*s1++)
        ;
    --s1;
    while ((*s1++ = *s2++))
        if (--n < 0)
        {
            *--s1 = '\0';
            break;
        }
    return (os1);
}