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Add SOL_SOCKET level socket option with name SO_DOMAIN to get

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the domain of a socket.

This is helpful when testing and Solaris and Linux have the same
socket option using the same name.

Reviewed by:		bcr@, rrs@
Sponsored by:		Netflix, Inc.
Differential Revision:	https://reviews.freebsd.org/D16791
This commit is contained in:
Michael Tuexen 2018-08-21 14:04:30 +00:00
parent 6ef849e601
commit 6b01d4d433
3 changed files with 7 additions and 1 deletions
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3
lib/libc/sys/getsockopt.2
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@ -28,7 +28,7 @@
.\" @(#)getsockopt.2 8.4 (Berkeley) 5/2/95
.\" $FreeBSD$
.\"
.Dd May 9, 2018
.Dd August 21, 2018
.Dt GETSOCKOPT 2
.Os
.Sh NAME
@ -172,6 +172,7 @@ for the socket
.It Dv SO_TIMESTAMP Ta "enables reception of a timestamp with datagrams"
.It Dv SO_BINTIME Ta "enables reception of a timestamp with datagrams"
.It Dv SO_ACCEPTCONN Ta "get listening status of the socket (get only)"
.It Dv SO_DOMAIN Ta "get the domain of the socket (get only)"
.It Dv SO_TYPE Ta "get the type of the socket (get only)"
.It Dv SO_PROTOCOL Ta "get the protocol number for the socket (get only)"
.It Dv SO_PROTOTYPE Ta "SunOS alias for the Linux SO_PROTOCOL (get only)"

4
sys/kern/uipc_socket.c
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@ -3008,6 +3008,10 @@ integer:
error = sooptcopyout(sopt, &optval, sizeof optval);
break;
case SO_DOMAIN:
optval = so->so_proto->pr_domain->dom_family;
goto integer;
case SO_TYPE:
optval = so->so_type;
goto integer;

1
sys/sys/socket.h
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@ -171,6 +171,7 @@ typedef __uintptr_t uintptr_t;
#define SO_PROTOTYPE SO_PROTOCOL /* alias for SO_PROTOCOL (SunOS name) */
#define SO_TS_CLOCK 0x1017 /* clock type used for SO_TIMESTAMP */
#define SO_MAX_PACING_RATE 0x1018 /* socket's max TX pacing rate (Linux name) */
#define SO_DOMAIN 0x1019 /* get socket domain */
#endif
#if __BSD_VISIBLE