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Fix markup.

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Submitted by:	ru
MFC after:	2 days
This commit is contained in:
Bruce M Simpson 2007-03-05 13:52:01 +00:00
parent b5368498b5
commit 693099c53f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=167235
1 changed files with 36 additions and 22 deletions
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58
lib/libc/sys/shutdown.2
View file

@ -49,7 +49,7 @@ The
.Fa how
argument specifies the type of shutdown.
Possible values are:
.Bl -tag -width SHUT_RDWR
.Bl -tag -width ".Dv SHUT_RDWR"
.It Dv SHUT_RD
Further receives will be disallowed.
.It Dv SHUT_WR
@ -60,7 +60,8 @@ to happen; see
.Sx IMPLEMENTATION NOTES .
.It Dv SHUT_RDWR
Further sends and receives will be disallowed.
Implies SHUT_WR.
Implies
.Dv SHUT_WR .
.El
.Pp
If the file descriptor
@ -70,42 +71,46 @@ is associated with a
socket, all or part of the full-duplex connection will be shut down.
.\"
.Sh IMPLEMENTATION NOTES
.Pp
The following protocol specific actions apply to the use of
.Dv SHUT_WR
(and potentially also
.Dv SHUT_RDWR ) ,
based on the properties of the socket associated with the file descriptor
.Fa s .
.Bl -column ".Sy PF_INET6" ".Sy SOCK_STREAM" ".Sy IPPROTO_SCTP" \
-width "xxxxxxxxxxxxxxxx"
.It Li Sy Domain Ta Sy Type Ta Sy Protocol Ta Sy Return value and action
.It Li PF_INET Ta SOCK_DGRAM Ta IPPROTO_SCTP Ta
Return -1.
.Bl -column ".Dv PF_INET6" ".Dv SOCK_STREAM" ".Dv IPPROTO_SCTP"
.It Sy Domain Ta Sy Type Ta Sy Protocol Ta Sy Return value and action
.It Dv PF_INET Ta Dv SOCK_DGRAM Ta Dv IPPROTO_SCTP Ta
Return \-1.
The global variable
.Va errno
will be set to
.Er EOPNOTSUPP .
.It Li PF_INET Ta SOCK_DGRAM Ta IPPROTO_UDP Ta
.It Dv PF_INET Ta Dv SOCK_DGRAM Ta Dv IPPROTO_UDP Ta
Return 0.
ICMP messages will NOT be generated.
.It Li PF_INET Ta SOCK_STREAM Ta IPPROTO_SCTP Ta
ICMP messages will
.Em not
be generated.
.It Dv PF_INET Ta Dv SOCK_STREAM Ta Dv IPPROTO_SCTP Ta
Return 0.
Send queued data and tear down association.
.It Li PF_INET Ta SOCK_STREAM Ta IPPROTO_TCP Ta
Return 0.
.It Dv PF_INET Ta Dv SOCK_STREAM Ta Dv IPPROTO_TCP Ta
Return 0. \
Send queued data, wait for ACK, then send FIN.
.It Li PF_INET6 Ta SOCK_DGRAM Ta IPPROTO_SCTP Ta
Return -1.
.It Dv PF_INET6 Ta Dv SOCK_DGRAM Ta Dv IPPROTO_SCTP Ta
Return \-1.
The global variable
.Va errno
will be set to
.Er EOPNOTSUPP .
.It Li PF_INET6 Ta SOCK_DGRAM Ta IPPROTO_UDP Ta
.It Dv PF_INET6 Ta Dv SOCK_DGRAM Ta Dv IPPROTO_UDP Ta
Return 0.
ICMP messages will NOT be generated.
.It Li PF_INET6 Ta SOCK_STREAM Ta IPPROTO_SCTP Ta
ICMP messages will
.Em not
be generated.
.It Dv PF_INET6 Ta Dv SOCK_STREAM Ta Dv IPPROTO_SCTP Ta
Return 0.
Send queued data and tear down association.
.It Li PF_INET6 Ta SOCK_STREAM Ta IPPROTO_TCP Ta
.It Dv PF_INET6 Ta Dv SOCK_STREAM Ta Dv IPPROTO_TCP Ta
Return 0.
Send queued data, wait for ACK, then send FIN.
.El
@ -131,7 +136,7 @@ The socket associated with the file descriptor
does not support this operation.
.It Bq Er ENOTCONN
The
.Da s
.Fa s
argument specifies a
.Dv SOCK_STREAM
socket which is not connected.
@ -165,9 +170,18 @@ constants appeared in
.Sh AUTHORS
.An -nosplit
This manual page was updated by
.An Bruce M. Simpson Aq bms@FreeBSD.org .
.An Bruce M. Simpson Aq bms@FreeBSD.org
to reflect how
.Fn shutdown
behaves with
.Dv PF_INET
and
.Dv PF_INET6
sockets.
.Sh BUGS
The ICMP "port unreachable" message should be generated in response to
The ICMP
.Dq Li "port unreachable"
message should be generated in response to
datagrams received on a local port to which
.Fa s
is bound