static void
send_error_packet(int to_peer, int err, const char* msg)
{
size_t msg_size = strlen(msg);
if (msg_size > UINT16_MAX)
msg_size = UINT16_MAX;
struct xfer_msg m = {
.type = XFER_MSG_ERROR,
.u.error.err = err,
.u.error.msg_size = msg_size,
};
send_xfer_msg(to_peer, &m);
write_all(to_peer, msg, msg_size);
}
int
xfer_stub_main(const struct cmd_xfer_stub_info* info)
{
struct xfer_ctx ctx = {
.from_peer = STDIN_FILENO,
.to_peer = STDOUT_FILENO,
.info = info,
};
struct errinfo ei = {
.want_msg = true
};
if (catch_error(do_xfer, &ctx, &ei)) {
send_error_packet(ctx.to_peer, ei.err, ei.msg);
return 1;
}
return 0;
}
#if FBADB_MAIN
int
xfer_handle_command(
const struct start_peer_info* spi,
const struct cmd_xfer_stub_info* local,
const struct cmd_xfer_stub_info* remote)
{
struct child* peer = start_peer(
spi,
make_args_cmd_xfer_stub(
CMD_ARG_NAME | CMD_ARG_FORWARDED,
remote));
struct xfer_ctx ctx = {
.from_peer = peer->fd[1]->fd,
.to_peer = peer->fd[0]->fd,
.info = local,
};
do_xfer(&ctx);
return child_status_to_exit_code(child_wait(peer));
}
int network_manager_update(struct network_manager* nm)
{
// If disabled, do nothing
if(chaind_config(nm->chaind)->network.participate != 1) {
return 0;
}
check_peer_discovery(nm);
// If we have fewer peers connected than we want, try connecting some
while(nm->num_peers < nm->num_peer_goal) {
if(start_peer(nm) < 0) {
// This can happen if we're out of addresses
break;
}
}
update_peers(nm);
return 0;
}
