static ldns_rdf *ldns_rdf_new_addr_frm_str(const char *str) { ldns_rdf *a = NULL; ldns_str2rdf_a(&a, str); if (!a) { /* maybe ip6 */ ldns_str2rdf_aaaa(&a, str); if (!a) { return NULL; } } return a; }
void* run_server(void* data) { timeout_thread_data* tdata = (timeout_thread_data*)data; int fd; struct sockaddr_in serv_addr; uint8_t mesg[65536]; fd_set read_fds; ldns_rdf* answerfrom; ldns_resolver* resolver; int num_received = 0; queued_response responses[10]; ldns_resolver_new_frm_file(&resolver, NULL); fd=socket(AF_INET,SOCK_DGRAM,0); memset(&serv_addr, 0, sizeof(serv_addr)); serv_addr.sin_family = AF_INET; serv_addr.sin_addr.s_addr=htonl(INADDR_ANY); serv_addr.sin_port=htons(tdata->port); bind(fd,(struct sockaddr *)&serv_addr,sizeof(serv_addr)); /* signal that it's listening */ /* dirty timing hack to yield */ sleep(1); tdata->running = 1; /* queue up query responses to send out, and delay sending them * for a second */ while (tdata->running) { struct sockaddr_in client_addr; FD_ZERO(&read_fds); FD_SET(fd, &read_fds); struct timeval tv; tv.tv_sec = 1; tv.tv_usec = 0; int r = select(fd + 1, &read_fds, NULL, NULL, &tv); if (r > 0 && num_received < 10) { ldns_pkt* query; socklen_t len = sizeof(client_addr); int n = recvfrom(fd,mesg,65536,0,(struct sockaddr *)&(responses[num_received].client_addr),&len); ldns_wire2pkt(&query, mesg, n); ldns_resolver_send_pkt(&(responses[num_received].pkt), resolver, query); ldns_str2rdf_a(&answerfrom, "127.0.0.1"); ldns_pkt_set_answerfrom(responses[num_received].pkt, answerfrom); ldns_pkt_free(query); ++num_received; } else if (r == 0 && num_received > 0) { int i = 0; /* timeout - see if we have anything to send */ for (i = 0; i < num_received; ++i) { uint8_t* pkt_data; size_t pkt_len; ldns_pkt* answer = responses[i].pkt; ldns_pkt2wire(&pkt_data, answer, &pkt_len); sendto(fd,pkt_data,pkt_len,0,(struct sockaddr *)&(responses[i].client_addr),sizeof(client_addr)); free(pkt_data); ldns_pkt_free(answer); } num_received = 0; } } ldns_resolver_deep_free(resolver); return NULL; }