static void qmqpd_receive(QMQPD_STATE *state)
{
/*
* Open a queue file. This must be first so that we can simplify the
* error logging and always include the queue ID information.
*/
qmqpd_open_file(state);
/*
* Read and ignore the over-all netstring length indicator.
*/
state->where = "receiving QMQP packet header";
(void) netstring_get_length(state->client);
/*
* XXX Read the message content into memory, because Postfix expects to
* store the sender before storing the message content. Fixing that
* requires changes to pickup, cleanup, qmgr, and perhaps elsewhere, so
* that will have to happen later when I have more time. However, QMQP is
* used for mailing list distribution, so the bulk of the volume is
* expected to be not message content but recipients, and recipients are
* not accumulated in memory.
*/
qmqpd_read_content(state);
/*
* Read and write the envelope sender.
*/
qmqpd_copy_sender(state);
/*
* Record some session attributes.
*/
qmqpd_write_attributes(state);
/*
* Read and write the envelope recipients, including the optional big
* brother recipient.
*/
qmqpd_copy_recipients(state);
/*
* Start the message content segment, prepend our own Received: header,
* and write the message content.
*/
if (state->err == 0)
qmqpd_write_content(state);
/*
* Close the queue file.
*/
qmqpd_close_file(state);
/*
* Report the completion status to the client.
*/
qmqpd_send_status(state);
}
VSTRING *netstring_get(VSTREAM *stream, VSTRING *buf, ssize_t limit)
{
ssize_t len;
len = netstring_get_length(stream);
if (limit && len > limit)
netstring_except(stream, NETSTRING_ERR_SIZE);
netstring_get_data(stream, buf, len);
return (buf);
}
static void read_length(int event, void *context)
{
SINK_STATE *state = (SINK_STATE *) context;
switch (vstream_setjmp(state->stream)) {
default:
msg_panic("unknown error reading input");
case NETSTRING_ERR_TIME:
msg_panic("attempt to read non-readable socket");
/* NOTREACHED */
case NETSTRING_ERR_EOF:
msg_warn("lost connection");
disconnect(state);
return;
case NETSTRING_ERR_FORMAT:
msg_warn("netstring format error");
disconnect(state);
return;
case NETSTRING_ERR_SIZE:
msg_warn("netstring size error");
disconnect(state);
return;
/*
* Include the netstring terminator in the read byte count. This
* violates abstractions.
*/
case 0:
state->count = netstring_get_length(state->stream) + 1;
read_data(event, context);
return;
}
}
