dprint (5, (debugfile, " version: %d ", buff[1]));
static KEYINFO *pgp_parse_keyinfo(unsigned char *buff, size_t l){  if(!buff || l < 2)    return NULL;    switch(buff[1])  {    case 2:    case 3:      return pgp_parse_pgp2_key(buff, l);    case 4:      return pgp_parse_pgp3_key(buff, l);    default:      return NULL;  }}