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| author | Jan Engelhardt <jengelh@medozas.de> | 2009-08-04 07:28:29 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-05 13:02:57 -0700 |
| commit | 0d6038ee76f2e06b79d0465807f67e86bf4025de (patch) | |
| tree | ffb88e2f817ae2a76fece58a7f7d0de3fd37fbaf /net/core/sock.c | |
| parent | 49c794e94649020248e37b78db16cd25bad38b4f (diff) | |
| download | linux-0d6038ee76f2e06b79d0465807f67e86bf4025de.tar.gz linux-0d6038ee76f2e06b79d0465807f67e86bf4025de.tar.bz2 linux-0d6038ee76f2e06b79d0465807f67e86bf4025de.zip | |
net: implement a SO_DOMAIN getsockoption
This sockopt goes in line with SO_TYPE and SO_PROTOCOL. It makes it
possible for userspace programs to pass around file descriptors — I
am referring to arguments-to-functions, but it may even work for the
fd passing over UNIX sockets — without needing to also pass the
auxiliary information (PF_INET6/IPPROTO_TCP).
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/sock.c')
| -rw-r--r-- | net/core/sock.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index ebce661234ac..3ac34ea6ec05 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -483,6 +483,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, break; case SO_TYPE: case SO_PROTOCOL: + case SO_DOMAIN: case SO_ERROR: ret = -ENOPROTOOPT; break; @@ -769,6 +770,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sk->sk_protocol; break; + case SO_DOMAIN: + v.val = sk->sk_family; + break; + case SO_ERROR: v.val = -sock_error(sk); if (v.val == 0) |