void resolve_host_argument_list(struct host_argument_list_s * n) {
struct addrinfo * a = NULL, * i;
struct addrinfo hints;
int r;
struct host_argument_list_s * list = NULL;
struct host_argument_s * host = NULL;
if (n->list) {
resolve_host_argument_list(n->list);
}
if (n->arg) {
memset(&hints, 0, sizeof(struct addrinfo));
/* any address family is good */
hints.ai_family = PF_UNSPEC;
/* return hostname, though we don't use it, for debugging */
hints.ai_flags = AI_CANONNAME;
/* limit so duplicate hosts aren't returned for each socktype */
hints.ai_socktype = SOCK_STREAM;
if (n->arg->host) {
r = getaddrinfo(n->arg->host, NULL, &hints, &a);
switch (r) {
case 0:
/* replace the hostname with the IP */
free(n->arg->host);
/* getnameinfo does no allocation. */
n->arg->host = malloc(NI_MAXHOST + 1);
if (getnameinfo(a->ai_addr, a->ai_addrlen, n->arg->host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST) == 0) {
/* if there's more, create some more hosts */
for (i = a->ai_next; i; i = i->ai_next) {
list = malloc(sizeof(struct host_argument_list_s));
host = malloc(sizeof(struct host_argument_s));
host->host = malloc(NI_MAXHOST + 1);
if (getnameinfo(i->ai_addr, i->ai_addrlen, host->host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST) == 0) {
if (n->arg->mask) {
host->mask = strdup(n->arg->mask);
}
/* insert the new node */
list->arg = host;
list->list = n->list;
n->list = list;
} else {
fprintf(stderr, "warning: %s\n", strerror(errno));
}
}
} else {
fprintf(stderr, "warning: %s\n", strerror(errno));
}
freeaddrinfo(a);
break;
default:
fprintf(stderr, "warning: %s: %s\n", gai_strerror(r), n->arg->host);
break;
}
}
}
}
void resolve_host_specifier(struct host_specifier_s * n) {
if (n->list) {
resolve_host_argument_list(n->list);
}
}
void resolve_host_specifier(struct host_specifier_s * n, struct filtergen_opts * o) {
if (n->list) {
resolve_host_argument_list(n->list, o);
}
}
