This patch fixes SIGIPIPE for DECnet. Currently recvmsg generates SIGPIPE
whereas sendmsg does not; for the other stacks it seems to be the other way
round!
It also fixes the bug where reading from a socket whose peer has shutdown
returned -EINVAL rather than 0.
Signed-off-by: Patrick Caulfield <[email protected]>
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1664,17 +1664,15 @@ static int dn_recvmsg(struct kiocb *iocb
goto out;
}
- rv = dn_check_state(sk, NULL, 0, &timeo, flags);
- if (rv)
- goto out;
-
if (sk->sk_shutdown & RCV_SHUTDOWN) {
- if (!(flags & MSG_NOSIGNAL))
- send_sig(SIGPIPE, current, 0);
- rv = -EPIPE;
+ rv = 0;
goto out;
}
+ rv = dn_check_state(sk, NULL, 0, &timeo, flags);
+ if (rv)
+ goto out;
+
if (flags & ~(MSG_PEEK|MSG_OOB|MSG_WAITALL|MSG_DONTWAIT|MSG_NOSIGNAL)) {
rv = -EOPNOTSUPP;
goto out;
@@ -1928,6 +1926,8 @@ static int dn_sendmsg(struct kiocb *iocb
if (sk->sk_shutdown & SEND_SHUTDOWN) {
err = -EPIPE;
+ if (!(flags & MSG_NOSIGNAL))
+ send_sig(SIGPIPE, current, 0);
goto out_err;
}
-
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