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connection: handle truncated control data

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We can't recover from truncated control data so return a fatal error
that should stop the client. Truncated control data can happen when
there are no more fds available, for example.

See #1305
This commit is contained in:
Wim Taymans 2021-06-18 14:51:08 +02:00
parent 8cf2f134b7
commit adee3d79b9
1 changed files with 2 additions and 0 deletions
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2
src/modules/module-protocol-native/connection.c
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@ -186,6 +186,8 @@ static int refill_buffer(struct pw_protocol_native_connection *conn, struct buff
while (true) { while (true) {
len = recvmsg(conn->fd, &msg, msg.msg_flags); len = recvmsg(conn->fd, &msg, msg.msg_flags);
if (msg.msg_flags & MSG_CTRUNC)
return -EPROTO;
if (len == 0 && avail != 0) if (len == 0 && avail != 0)
return -EPIPE; return -EPIPE;
else if (len < 0) { else if (len < 0) {