static int
i_peek(u_int fd, struct file *fp, struct inode *ip,
void *data, struct pt_regs *regs)
{
#if !defined(CONFIG_ABI_XTI)
fput(fp);
return 0;
#else
struct T_private *ti = Priv(fp);
struct T_primsg *tp;
struct strpeek buf, *uap = data;
int error = -EFAULT;
if (copy_from_user(&buf, uap, sizeof(buf)))
goto fput;
error = 0;
if (!ip->i_sock)
goto fput;
if (IS_SOCKSYS(ip))
timod_update_socket(fd, fp, regs);
if (!ti || !ti->pfirst)
goto fput;
tp = ti->pfirst;
error = -EFAULT;
if (!buf.flags || buf.flags == tp->pri) {
int l;
if (buf.ctl.maxlen <= tp->length)
l = buf.ctl.maxlen;
else
l = tp->length;
if (copy_to_user(buf.ctl.buf,
((char *)&tp->type) + ti->offset, l))
goto fput;
if (put_user(l, &uap->ctl.len))
goto fput;
if (buf.dat.maxlen >= 0 && put_user(0, &uap->dat.len))
goto fput;
if (put_user(tp->pri, &uap->flags))
goto fput;
error = 1;
}
fput:
fput(fp);
return error;
#endif /* CONFIG_ABI_XTI */
}
static int
i_nread(u_int fd, struct file *fp, struct inode *ip,
void *data, struct pt_regs *regs)
{
int error=0;
if (!access_ok(VERIFY_WRITE, data, sizeof(u_long))) {
error = -EFAULT;
goto fput;
}
#if !defined(CONFIG_ABI_XTI)
if (S_ISSOCK(ip->i_mode)) {
struct T_private *ti = Priv(fp);
if (IS_SOCKSYS(ip))
timod_update_socket(fd, fp, regs);
if (ti && ti->pfirst) {
put_user(ti->pfirst->length, (u_long *)data);
fput(fp);
return 1; /* at least 1... (FIXME) */
}
}
fput(fp);
#endif
error = SYS(ioctl,fd, TIOCINQ, (long)data);
if (error == -EINVAL)
return 0;
else if (error)
return error;
__get_user(error, (u_long *)data);
return !!error;
fput:
fput(fp);
return error;
}
static int
i_nread(u_int fd, struct file *fp, struct inode *ip,
void *data, struct pt_regs *regs)
{
int error;
error = verify_area(VERIFY_WRITE, data, sizeof(u_long));
if (error)
goto fput;
#if defined(CONFIG_ABI_XTI)
if (ip->i_sock) {
struct T_private *ti = Priv(fp);
if (IS_SOCKSYS(ip))
timod_update_socket(fd, fp, regs);
if (ti && ti->pfirst) {
put_user(ti->pfirst->length, (u_long *)data);
fput(fp);
return 1; /* at least 1... (FIXME) */
}
}
#endif
fput(fp);
error = sys_ioctl(fd, TIOCINQ, data);
if (error == -EINVAL)
return 0;
else if (error)
return error;
__get_user(error, (u_long *)data);
return !!error;
fput:
fput(fp);
return error;
}
