Exemple #1
0
int allow_access(const union sockaddr_u *su)
{
    /* A host not in the allow set is denied, but only if the --allow or
       --allowfile option was given. */
    if (o.allow && !addrset_contains(&o.allowset, &su->sockaddr))
        return 0;
    if (addrset_contains(&o.denyset, &su->sockaddr))
        return 0;

    return 1;
}
Exemple #2
0
int main(int argc, char *argv[])
{
    struct addrset *set;
    char line[1024];
    int i;

#ifdef WIN32
    win_init();
#endif

    set = addrset_new();

    options_init();

    for (i = 1; i < argc; i++) {
        if (!addrset_add_spec(set, argv[i], o.af, !o.nodns)) {
            fprintf(stderr, "Error adding spec \"%s\".\n", argv[i]);
            exit(1);
        }
    }

    while (fgets(line, sizeof(line), stdin) != NULL) {
        char *s, *hostname;
        struct addrinfo *addrs;

        s = line;
        while ((hostname = strtok(s, " \t\n")) != NULL) {
            int rc;

            s = NULL;

            rc = resolve_name(hostname, &addrs);
            if (rc != 0) {
                fprintf(stderr, "Error resolving \"%s\": %s.\n", hostname, gai_strerror(rc));
                continue;
            }
            if (addrs == NULL) {
                fprintf(stderr, "No addresses found for \"%s\".\n", hostname);
                continue;
            }

            /* Check just the first address returned. */
            if (addrset_contains(set, addrs->ai_addr))
                    printf("%s\n", hostname);

            freeaddrinfo(addrs);
        }
    }

    addrset_free(set);

    return 0;
}