/** * 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; }