/**
* Create socket from getaddrinfo results
*/
static int
make_sock(int stype, const char* ifname, const char* port,
struct addrinfo *hints, int v6only, int* noip6, size_t rcv, size_t snd,
int* reuseport, int transparent, int tcp_mss)
{
struct addrinfo *res = NULL;
int r, s, inuse, noproto;
hints->ai_socktype = stype;
*noip6 = 0;
if((r=getaddrinfo(ifname, port, hints, &res)) != 0 || !res) {
#ifdef USE_WINSOCK
if(r == EAI_NONAME && hints->ai_family == AF_INET6){
*noip6 = 1; /* 'Host not found' for IP6 on winXP */
return -1;
}
#endif
log_err("node %s:%s getaddrinfo: %s %s",
ifname?ifname:"default", port, gai_strerror(r),
#ifdef EAI_SYSTEM
r==EAI_SYSTEM?(char*)strerror(errno):""
#else
""
#endif
);
return -1;
}
if(stype == SOCK_DGRAM) {
verbose_print_addr(res);
s = create_udp_sock(res->ai_family, res->ai_socktype,
(struct sockaddr*)res->ai_addr, res->ai_addrlen,
v6only, &inuse, &noproto, (int)rcv, (int)snd, 1,
reuseport, transparent);
if(s == -1 && inuse) {
log_err("bind: address already in use");
} else if(s == -1 && noproto && hints->ai_family == AF_INET6){
*noip6 = 1;
}
} else {
s = create_tcp_accept_sock(res, v6only, &noproto, reuseport,
transparent, tcp_mss);
if(s == -1 && noproto && hints->ai_family == AF_INET6){
*noip6 = 1;
}
}
freeaddrinfo(res);
return s;
}
/**
* Add and open a new control port
* @param ip: ip str
* @param nr: port nr
* @param list: list head
* @param noproto_is_err: if lack of protocol support is an error.
* @return false on failure.
*/
static int
add_open(const char* ip, int nr, struct listen_port** list, int noproto_is_err)
{
struct addrinfo hints;
struct addrinfo* res;
struct listen_port* n;
int noproto;
int fd, r;
char port[15];
snprintf(port, sizeof(port), "%d", nr);
port[sizeof(port)-1]=0;
memset(&hints, 0, sizeof(hints));
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
if((r = getaddrinfo(ip, port, &hints, &res)) != 0 || !res) {
#ifdef USE_WINSOCK
if(!noproto_is_err && r == EAI_NONAME) {
/* tried to lookup the address as name */
return 1; /* return success, but do nothing */
}
#endif /* USE_WINSOCK */
log_err("control interface %s:%s getaddrinfo: %s %s",
ip?ip:"default", port, gai_strerror(r),
#ifdef EAI_SYSTEM
r==EAI_SYSTEM?(char*)strerror(errno):""
#else
""
#endif
);
return 0;
}
/* open fd */
fd = create_tcp_accept_sock(res, 1, &noproto);
freeaddrinfo(res);
if(fd == -1 && noproto) {
if(!noproto_is_err)
return 1; /* return success, but do nothing */
log_err("cannot open control interface %s %d : "
"protocol not supported", ip, nr);
return 0;
}
if(fd == -1) {
log_err("cannot open control interface %s %d", ip, nr);
return 0;
}
/* alloc */
n = (struct listen_port*)calloc(1, sizeof(*n));
if(!n) {
#ifndef USE_WINSOCK
close(fd);
#else
closesocket(fd);
#endif
log_err("out of memory");
return 0;
}
n->next = *list;
*list = n;
n->fd = fd;
return 1;
}
