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control_socket: Print listening port

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This is useful when binding to a random port (--control-port 0)
This commit is contained in:
Martin Piatka
2022-10-13 13:09:54 +02:00
parent 85019bbec0
commit 3acc296291
1 changed files with 20 additions and 0 deletions
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20
src/control_socket.cpp
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@@ -153,6 +153,24 @@ static void new_message(struct module *m) {
}
}
static int get_bound_port(fd_t fd, int ip_version){
assert(ip_version == 4 || ip_version == 6);
sockaddr_storage ss;
socklen_t s_len = sizeof(ss);
int rc = getsockname(fd, reinterpret_cast<struct sockaddr *>(&ss), &s_len);
if(rc != 0)
return -1;
if(ip_version == 4){
auto *s_in = reinterpret_cast<struct sockaddr_in *>(&ss);
return ntohs(s_in->sin_port);
}
auto *s_in6 = reinterpret_cast<struct sockaddr_in6 *>(&ss);
return ntohs(s_in6->sin6_port);
}
int control_init(int port, int connection_type, struct control_state **state, struct module *root_module, int force_ip_version)
{
control_state *s = new control_state();
@@ -232,6 +250,8 @@ int control_init(int port, int connection_type, struct control_state **state, st
socket_error("Control socket - listen");
goto error;
}
log_msg(LOG_LEVEL_NOTICE, "Control socket listening on port %d\n",
get_bound_port(s->socket_fd, ip_version));
}
} else {
if (force_ip_version == 6) {