mdoc(7) police: laundry.

1 files changed, 22 insertions, 10 deletions

diff --git a/share/man/man4/snp.4 b/share/man/man4/snp.4
index 42aab41..9a61000 100644
--- a/share/man/man4/snp.4
+++ b/share/man/man4/snp.4
@@ -16,33 +16,45 @@
 .Ft int
 .Fn ioctl fd FIONREAD &result
 .Sh DESCRIPTION
-/dev/snp? are snoop devices which allow users to attach to any tty
+.Pa /dev/snp?
+are snoop devices which allow users to attach to any tty
 and watch activities on it.
 The kernel must be compiled with
 .Cd "device snp" ,
 or the
 .Nm
-device must be loaded,
+module must be loaded,
 for these devices to be available.
 .Pp
 To associate a given
 .Nm
 device with a tty to be observed, open the
 .Nm
-device and then use the SNPSTTY ioctl.
-The argument passed to the ioctl is the address of a variable of type
-dev_t.
-To detach the snp device from a tty use a pointer to a value of (dev_t)-1.
+device and then use the
+.Dv SNPSTTY
+ioctl.
+The argument passed to the
+.Xr ioctl 2
+is the address of a variable of type
+.Vt dev_t .
+To detach the
+.Nm
+device from a tty use a pointer to a value of
+.Po Vt dev_t Pc Ns \-1 .
 .Pp
-The SNPGTTY ioctl returns information about the current tty attached to
+The
+.Dv SNPGTTY
+ioctl returns information about the current tty attached to
 the open
 .Nm
 device.
 .Pp
-The FIONREAD ioctl returns a positive value equal to the number of characters
+The
+.Dv FIONREAD
+ioctl returns a positive value equal to the number of characters
 in a read buffer.
 Special values defined are:
-.Bl -tag -width SNP_TTYCLOSE
+.Bl -tag -width ".Dv SNP_TTYCLOSE"
 .It Dv SNP_OFLOW
 device overflow occurred, device detached.
 .It Dv SNP_TTYCLOSE
@@ -61,7 +73,7 @@ and detached.
 Caveat emptor!
 This manual page is horribly stale and wildly inaccurate in some places.
 .Pp
-While in line mode, user input can't be seen.
+While in line mode, user input cannot be seen.
 No signals may be sent to the observed tty.
 .Sh AUTHORS
 .An Ugen J.S. Antsilevich Aq ugen@NetVision.net.il