static int init_hostname(void) {
const char *str = global_option_get("Hostname");
if (str && str[0] != '\0') {
hostname_set(str);
return 0;
}
#ifdef WIN32
long hostname_len = NI_MAXHOST;
#else
long hostname_len = sysconf(_SC_HOST_NAME_MAX);
if (hostname_len == -1) {
hostname_len = NI_MAXHOST;
}
#endif /* WIN32 */
char hostname[hostname_len];
if (gethostname(hostname, hostname_len) != 0) {
fprintf(stderr, "`gethostname' failed and no "
"hostname was configured.\n");
return -1;
}
hostname_set(hostname);
str = global_option_get("FQDNLookup");
if (IS_FALSE(str))
return 0;
struct addrinfo *ai_list;
struct addrinfo ai_hints = {.ai_flags = AI_CANONNAME};
int status = getaddrinfo(hostname, NULL, &ai_hints, &ai_list);
if (status != 0) {
ERROR("Looking up \"%s\" failed. You have set the "
"\"FQDNLookup\" option, but I cannot resolve "
"my hostname to a fully qualified domain "
"name. Please fix the network "
"configuration.",
hostname);
return -1;
}
for (struct addrinfo *ai_ptr = ai_list; ai_ptr; ai_ptr = ai_ptr->ai_next) {
if (ai_ptr->ai_canonname == NULL)
continue;
hostname_set(ai_ptr->ai_canonname);
break;
}
freeaddrinfo(ai_list);
return 0;
} /* int init_hostname */
static int uuid_init(void) {
char *uuid = uuid_get_local();
if (uuid) {
hostname_set(uuid);
sfree(uuid);
return 0;
}
WARNING("uuid: could not read UUID using any known method");
return 0;
}
