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socket(2): bring documentation up tp date

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o Undocument sockets that are no longer supported, or never were.
o Add AF_HYPERV. Note: PF_HYPERV isn't defined, no typo here.
o Point at ip(4) and ip6(4) instead of unwelcoming "not described here".

Reviewed by:		gbe, markj
Differential revision:	https://reviews.freebsd.org/D36284
This commit is contained in:
Gleb Smirnoff 2022-08-26 08:16:15 -07:00
parent 7c04ca1fad
commit a358db5603
1 changed files with 10 additions and 12 deletions
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22
lib/libc/sys/socket.2
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@ -28,7 +28,7 @@
.\" From: @(#)socket.2 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd August 19, 2018
.Dd August 26, 2022
.Dt SOCKET 2
.Os
.Sh NAME
@ -61,14 +61,11 @@ PF_UNIX Host-internal protocols,
PF_INET Internet version 4 protocols,
PF_INET6 Internet version 6 protocols,
PF_ROUTE Internal routing protocol,
PF_LINK Link layer interface,
PF_KEY Internal key-management function,
PF_NATM Asynchronous transfer mode protocols,
PF_NETGRAPH Netgraph sockets,
PF_IEEE80211 IEEE 802.11 wireless link-layer protocols (WiFi),
PF_BLUETOOTH Bluetooth protocols,
PF_INET_SDP OFED socket direct protocol (IPv4),
PF_INET6_SDP OFED socket direct protocol (IPv6)
AF_HYPERV HyperV sockets
.Ed
.Pp
Each protocol family is connected to an address family, which has the
@ -90,7 +87,6 @@ defined types are:
SOCK_STREAM Stream socket,
SOCK_DGRAM Datagram socket,
SOCK_RAW Raw-protocol interface,
SOCK_RDM Reliably-delivered packet,
SOCK_SEQPACKET Sequenced packet stream
.Ed
.Pp
@ -113,12 +109,12 @@ an entire packet with each read system call.
This facility may have protocol-specific properties.
.Dv SOCK_RAW
sockets provide access to internal network protocols and interfaces.
The types
.Dv SOCK_RAW ,
which is available only to the super-user, and
.Dv SOCK_RDM ,
which is planned,
but not yet implemented, are not described here.
The
.Dv SOCK_RAW
type is available only to the super-user and is described in
.Xr ip 4
and
.Xr ip6 4 .
.Pp
Additionally, the following flags are allowed in the
.Fa type
@ -291,6 +287,8 @@ The socket type is not supported by the protocol.
.Xr getsockname 2 ,
.Xr getsockopt 2 ,
.Xr ioctl 2 ,
.Xr ip 4 ,
.Xr ip6 4 ,
.Xr listen 2 ,
.Xr read 2 ,
.Xr recv 2 ,