static int prepend_component(const char **p, bool usec, unsigned nesting, CalendarComponent **c) {
int r, start, stop = -1, repeat = 0;
CalendarComponent *cc;
const char *e = *p;
assert(p);
assert(c);
if (nesting > CALENDARSPEC_COMPONENTS_MAX)
return -ENOBUFS;
r = parse_component_decimal(&e, usec, &start);
if (r < 0)
return r;
if (e[0] == '.' && e[1] == '.') {
e += 2;
r = parse_component_decimal(&e, usec, &stop);
if (r < 0)
return r;
repeat = usec ? USEC_PER_SEC : 1;
}
if (*e == '/') {
e++;
r = parse_component_decimal(&e, usec, &repeat);
if (r < 0)
return r;
if (repeat == 0)
return -ERANGE;
}
if (!IN_SET(*e, 0, ' ', ',', '-', '~', ':'))
return -EINVAL;
cc = new0(CalendarComponent, 1);
if (!cc)
return -ENOMEM;
cc->start = start;
cc->stop = stop;
cc->repeat = repeat;
cc->next = *c;
*p = e;
*c = cc;
if (*e ==',') {
*p += 1;
return prepend_component(p, usec, nesting + 1, c);
}
return 0;
}
static int frame_callback(Dwfl_Frame *frame, void *userdata) {
struct stack_context *c = userdata;
Dwarf_Addr pc, pc_adjusted, bias = 0;
_cleanup_free_ Dwarf_Die *scopes = NULL;
const char *fname = NULL, *symbol = NULL;
Dwfl_Module *module;
bool is_activation;
assert(frame);
assert(c);
if (c->n_frame >= FRAMES_MAX)
return DWARF_CB_ABORT;
if (!dwfl_frame_pc(frame, &pc, &is_activation))
return DWARF_CB_ABORT;
pc_adjusted = pc - (is_activation ? 0 : 1);
module = dwfl_addrmodule(c->dwfl, pc_adjusted);
if (module) {
Dwarf_Die *s, *cudie;
int n;
cudie = dwfl_module_addrdie(module, pc_adjusted, &bias);
if (cudie) {
n = dwarf_getscopes(cudie, pc_adjusted - bias, &scopes);
for (s = scopes; s < scopes + n; s++) {
if (IN_SET(dwarf_tag(s), DW_TAG_subprogram, DW_TAG_inlined_subroutine, DW_TAG_entry_point)) {
Dwarf_Attribute *a, space;
a = dwarf_attr_integrate(s, DW_AT_MIPS_linkage_name, &space);
if (!a)
a = dwarf_attr_integrate(s, DW_AT_linkage_name, &space);
if (a)
symbol = dwarf_formstring(a);
if (!symbol)
symbol = dwarf_diename(s);
if (symbol)
break;
}
}
}
if (!symbol)
symbol = dwfl_module_addrname(module, pc_adjusted);
fname = dwfl_module_info(module, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
}
fprintf(c->f, "#%-2u 0x%016" PRIx64 " %s (%s)\n", c->n_frame, (uint64_t) pc, strna(symbol), strna(fname));
c->n_frame++;
return DWARF_CB_OK;
}
static int builtin_uaccess(sd_device *dev, int argc, char *argv[], bool test) {
const char *path = NULL, *seat;
bool changed_acl = false;
uid_t uid;
int r;
umask(0022);
/* don't muck around with ACLs when the system is not running systemd */
if (!logind_running())
return 0;
r = sd_device_get_devname(dev, &path);
if (r < 0) {
log_device_error_errno(dev, r, "Failed to get device name: %m");
goto finish;
}
if (sd_device_get_property_value(dev, "ID_SEAT", &seat) < 0)
seat = "seat0";
r = sd_seat_get_active(seat, NULL, &uid);
if (r < 0) {
if (IN_SET(r, -ENXIO, -ENODATA))
/* No active session on this seat */
r = 0;
else
log_device_error_errno(dev, r, "Failed to determine active user on seat %s: %m", seat);
goto finish;
}
r = devnode_acl(path, true, false, 0, true, uid);
if (r < 0) {
log_device_full(dev, r == -ENOENT ? LOG_DEBUG : LOG_ERR, r, "Failed to apply ACL: %m");
goto finish;
}
changed_acl = true;
r = 0;
finish:
if (path && !changed_acl) {
int k;
/* Better be safe than sorry and reset ACL */
k = devnode_acl(path, true, false, 0, false, 0);
if (k < 0) {
log_device_full(dev, k == -ENOENT ? LOG_DEBUG : LOG_ERR, k, "Failed to apply ACL: %m");
if (r >= 0)
r = k;
}
}
return r;
}
int calendar_spec_to_string(const CalendarSpec *c, char **p) {
char *buf = NULL;
size_t sz = 0;
FILE *f;
int r;
assert(c);
assert(p);
f = open_memstream(&buf, &sz);
if (!f)
return -ENOMEM;
if (c->weekdays_bits > 0 && c->weekdays_bits <= BITS_WEEKDAYS) {
format_weekdays(f, c);
fputc(' ', f);
}
format_chain(f, 4, c->year, false);
fputc('-', f);
format_chain(f, 2, c->month, false);
fputc(c->end_of_month ? '~' : '-', f);
format_chain(f, 2, c->day, false);
fputc(' ', f);
format_chain(f, 2, c->hour, false);
fputc(':', f);
format_chain(f, 2, c->minute, false);
fputc(':', f);
format_chain(f, 2, c->microsecond, true);
if (c->utc)
fputs(" UTC", f);
else if (IN_SET(c->dst, 0, 1)) {
/* If daylight saving is explicitly on or off, let's show the used timezone. */
tzset();
if (!isempty(tzname[c->dst])) {
fputc(' ', f);
fputs(tzname[c->dst], f);
}
}
r = fflush_and_check(f);
if (r < 0) {
free(buf);
fclose(f);
return r;
}
fclose(f);
*p = buf;
return 0;
}
static int busname_start(Unit *u) {
BusName *n = BUSNAME(u);
int r;
assert(n);
/* We cannot fulfill this request right now, try again later
* please! */
if (IN_SET(n->state, BUSNAME_SIGTERM, BUSNAME_SIGKILL))
return -EAGAIN;
/* Already on it! */
if (n->state == BUSNAME_MAKING)
return 0;
if (n->activating && UNIT_ISSET(n->service)) {
Service *service;
service = SERVICE(UNIT_DEREF(n->service));
if (UNIT(service)->load_state != UNIT_LOADED) {
log_unit_error(u, "Bus service %s not loaded, refusing.", UNIT(service)->id);
return -ENOENT;
}
}
assert(IN_SET(n->state, BUSNAME_DEAD, BUSNAME_FAILED));
r = unit_start_limit_test(u);
if (r < 0) {
busname_enter_dead(n, BUSNAME_FAILURE_START_LIMIT_HIT);
return r;
}
r = unit_acquire_invocation_id(u);
if (r < 0)
return r;
n->result = BUSNAME_SUCCESS;
busname_enter_making(n);
return 1;
}
bool dns_type_is_valid_rr(uint16_t type) {
/* The types valid as RR in packets (but not necessarily
* stored on servers). */
return !IN_SET(type,
DNS_TYPE_ANY,
DNS_TYPE_AXFR,
DNS_TYPE_IXFR);
}
bool dns_type_is_valid_query(uint16_t type) {
/* The types valid as questions in packets */
return !IN_SET(type,
0,
DNS_TYPE_OPT,
DNS_TYPE_TSIG,
DNS_TYPE_TKEY);
}
int sd_ipv4ll_set_index(sd_ipv4ll *ll, int interface_index) {
assert_return(ll, -EINVAL);
assert_return(interface_index > 0, -EINVAL);
assert_return(IN_SET(ll->state, IPV4LL_STATE_INIT,
IPV4LL_STATE_STOPPED), -EBUSY);
ll->index = interface_index;
return 0;
}
int sd_dhcp_client_set_index(sd_dhcp_client *client, int interface_index) {
assert_return(client, -EINVAL);
assert_return (IN_SET(client->state, DHCP_STATE_INIT,
DHCP_STATE_STOPPED), -EBUSY);
assert_return(interface_index > 0, -EINVAL);
client->index = interface_index;
return 0;
}
static int pppoe_send(sd_pppoe *ppp, uint8_t code) {
union sockaddr_union link = {
.ll = {
.sll_family = AF_PACKET,
.sll_protocol = htons(ETH_P_PPP_DISC),
.sll_halen = ETH_ALEN,
},
};
_cleanup_free_ struct pppoe_hdr *packet = NULL;
int r;
assert(ppp);
assert(ppp->fd != -1);
assert(IN_SET(code, PADI_CODE, PADR_CODE, PADT_CODE));
link.ll.sll_ifindex = ppp->ifindex;
if (code == PADI_CODE)
memset(&link.ll.sll_addr, 0xff, ETH_ALEN);
else
memcpy(&link.ll.sll_addr, &ppp->peer_mac, ETH_ALEN);
packet = malloc0(PPPOE_MAX_PACKET_SIZE);
if (!packet)
return -ENOMEM;
packet->ver = 0x1;
packet->type = 0x1;
packet->code = code;
if (code == PADT_CODE)
packet->sid = ppp->session_id;
/* Service-Name */
pppoe_tag_append(packet, PPPOE_MAX_PACKET_SIZE, PTT_SRV_NAME,
ppp->service_name, ppp->service_name ? strlen(ppp->service_name) : 0);
/* AC-Cookie */
if (code == PADR_CODE && ppp->tags.cookie)
pppoe_tag_append(packet, PPPOE_MAX_PACKET_SIZE, PTT_AC_COOKIE,
ppp->tags.cookie, ppp->tags.cookie_len);
/* Host-Uniq */
if (code != PADT_CODE) {
ppp->host_uniq = random_u64();
pppoe_tag_append(packet, PPPOE_MAX_PACKET_SIZE, PTT_HOST_UNIQ,
&ppp->host_uniq, sizeof(ppp->host_uniq));
}
r = sendto(ppp->fd, packet, sizeof(struct pppoe_hdr) + PPPOE_PACKET_LENGTH(packet),
0, &link.sa, sizeof(link.ll));
if (r < 0)
return -errno;
return 0;
}
static void test_in_set(void) {
assert_se(IN_SET(1, 1));
assert_se(IN_SET(1, 1, 2, 3, 4));
assert_se(IN_SET(2, 1, 2, 3, 4));
assert_se(IN_SET(3, 1, 2, 3, 4));
assert_se(IN_SET(4, 1, 2, 3, 4));
assert_se(!IN_SET(0, 1));
assert_se(!IN_SET(0, 1, 2, 3, 4));
}
bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) {
assert(de);
if (!IN_SET(de->d_type, DT_REG, DT_LNK, DT_UNKNOWN))
return false;
if (de->d_name[0] == '.')
return false;
return endswith(de->d_name, suffix);
}
bool dirent_is_file(const struct dirent *de) {
assert(de);
if (!IN_SET(de->d_type, DT_REG, DT_LNK, DT_UNKNOWN))
return false;
if (hidden_or_backup_file(de->d_name))
return false;
return true;
}
static void scope_set_state(Scope *s, ScopeState state) {
ScopeState old_state;
assert(s);
old_state = s->state;
s->state = state;
if (!IN_SET(state, SCOPE_STOP_SIGTERM, SCOPE_STOP_SIGKILL))
s->timer_event_source = sd_event_source_unref(s->timer_event_source);
if (IN_SET(state, SCOPE_DEAD, SCOPE_FAILED)) {
unit_unwatch_all_pids(UNIT(s));
unit_dequeue_rewatch_pids(UNIT(s));
}
if (state != old_state)
log_debug("%s changed %s -> %s", UNIT(s)->id, scope_state_to_string(old_state), scope_state_to_string(state));
unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], 0);
}
static int rmdir_one(const char *prefix, const char *suffix) {
char *p;
p = strjoina(prefix, "/", suffix);
if (rmdir(p) < 0) {
if (!IN_SET(errno, ENOENT, ENOTEMPTY))
return log_error_errno(errno, "Failed to remove \"%s\": %m", p);
} else
log_info("Removed \"%s\".", p);
return 0;
}
static int test_bus_open(void) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r;
r = sd_bus_open_user(&bus);
if (IN_SET(r, -ECONNREFUSED, -ENOENT))
return r;
assert_se(r >= 0);
printf("after open: refcount %u\n", REFCNT_GET(bus->n_ref));
return 0;
}
bool exit_status_set_test(ExitStatusSet *x, int code, int status) {
if (exit_status_set_is_empty(x))
return false;
if (code == CLD_EXITED && set_contains(x->status, INT_TO_PTR(status)))
return true;
if (IN_SET(code, CLD_KILLED, CLD_DUMPED) && set_contains(x->signal, INT_TO_PTR(status)))
return true;
return false;
}
/* Test with the real /etc/adjtime */
static void test_clock_is_localtime_system(void) {
int r;
r = clock_is_localtime(NULL);
if (access("/etc/adjtime", F_OK) == 0) {
log_info("/etc/adjtime exists, clock_is_localtime() == %i", r);
/* if /etc/adjtime exists we expect some answer, no error or
* crash */
assert_se(IN_SET(r, 0, 1));
} else
/* default is UTC if there is no /etc/adjtime */
assert_se(r == 0);
}
static int busname_stop(Unit *u) {
BusName *n = BUSNAME(u);
assert(n);
/* Already on it */
if (IN_SET(n->state, BUSNAME_SIGTERM, BUSNAME_SIGKILL))
return 0;
/* If there's already something running, we go directly into
* kill mode. */
if (n->state == BUSNAME_MAKING) {
busname_enter_signal(n, BUSNAME_SIGTERM, BUSNAME_SUCCESS);
return -EAGAIN;
}
assert(IN_SET(n->state, BUSNAME_REGISTERED, BUSNAME_LISTENING, BUSNAME_RUNNING));
busname_enter_dead(n, BUSNAME_SUCCESS);
return 1;
}
static int busname_coldplug(Unit *u, Hashmap *deferred_work) {
BusName *n = BUSNAME(u);
int r;
assert(n);
assert(n->state == BUSNAME_DEAD);
if (n->deserialized_state == n->state)
return 0;
if (IN_SET(n->deserialized_state, BUSNAME_MAKING, BUSNAME_SIGTERM, BUSNAME_SIGKILL)) {
if (n->control_pid <= 0)
return -EBADMSG;
r = unit_watch_pid(UNIT(n), n->control_pid);
if (r < 0)
return r;
r = busname_arm_timer(n);
if (r < 0)
return r;
}
if (IN_SET(n->deserialized_state, BUSNAME_MAKING, BUSNAME_LISTENING, BUSNAME_REGISTERED, BUSNAME_RUNNING)) {
r = busname_open_fd(n);
if (r < 0)
return r;
}
if (n->deserialized_state == BUSNAME_LISTENING) {
r = busname_watch_fd(n);
if (r < 0)
return r;
}
busname_set_state(n, n->deserialized_state);
return 0;
}
int sd_dhcp_client_set_request_address(sd_dhcp_client *client,
const struct in_addr *last_addr) {
assert_return(client, -EINVAL);
assert_return (IN_SET(client->state, DHCP_STATE_INIT,
DHCP_STATE_STOPPED), -EBUSY);
if (last_addr)
client->last_addr = last_addr->s_addr;
else
client->last_addr = INADDR_ANY;
return 0;
}
static int scope_coldplug(Unit *u) {
Scope *s = SCOPE(u);
int r;
assert(s);
assert(s->state == SCOPE_DEAD);
if (s->deserialized_state == s->state)
return 0;
if (IN_SET(s->deserialized_state, SCOPE_STOP_SIGKILL, SCOPE_STOP_SIGTERM)) {
r = scope_arm_timer(s, usec_add(u->state_change_timestamp.monotonic, s->timeout_stop_usec));
if (r < 0)
return r;
}
if (!IN_SET(s->deserialized_state, SCOPE_DEAD, SCOPE_FAILED))
unit_watch_all_pids(UNIT(s));
scope_set_state(s, s->deserialized_state);
return 0;
}
static void test_in_set(void) {
log_info("/* %s */", __func__);
assert_se(IN_SET(1, 1));
assert_se(IN_SET(1, 1, 2, 3, 4));
assert_se(IN_SET(2, 1, 2, 3, 4));
assert_se(IN_SET(3, 1, 2, 3, 4));
assert_se(IN_SET(4, 1, 2, 3, 4));
assert_se(!IN_SET(0, 1));
assert_se(!IN_SET(0, 1, 2, 3, 4));
}
int routing_policy_rule_remove(RoutingPolicyRule *routing_policy_rule, Link *link, sd_netlink_message_handler_t callback) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
int r;
assert(routing_policy_rule);
assert(link);
assert(link->manager);
assert(link->manager->rtnl);
assert(link->ifindex > 0);
assert(IN_SET(routing_policy_rule->family, AF_INET, AF_INET6));
r = sd_rtnl_message_new_routing_policy_rule(link->manager->rtnl, &m, RTM_DELRULE, routing_policy_rule->family);
if (r < 0)
return log_error_errno(r, "Could not allocate RTM_DELRULE message: %m");
if (!in_addr_is_null(routing_policy_rule->family, &routing_policy_rule->from)) {
if (routing_policy_rule->family == AF_INET)
r = sd_netlink_message_append_in_addr(m, FRA_SRC, &routing_policy_rule->from.in);
else
r = sd_netlink_message_append_in6_addr(m, FRA_SRC, &routing_policy_rule->from.in6);
if (r < 0)
return log_error_errno(r, "Could not append FRA_SRC attribute: %m");
r = sd_rtnl_message_routing_policy_rule_set_rtm_src_prefixlen(m, routing_policy_rule->from_prefixlen);
if (r < 0)
return log_error_errno(r, "Could not set source prefix length: %m");
}
if (!in_addr_is_null(routing_policy_rule->family, &routing_policy_rule->to)) {
if (routing_policy_rule->family == AF_INET)
r = sd_netlink_message_append_in_addr(m, FRA_DST, &routing_policy_rule->to.in);
else
r = sd_netlink_message_append_in6_addr(m, FRA_DST, &routing_policy_rule->to.in6);
if (r < 0)
return log_error_errno(r, "Could not append FRA_DST attribute: %m");
r = sd_rtnl_message_routing_policy_rule_set_rtm_dst_prefixlen(m, routing_policy_rule->to_prefixlen);
if (r < 0)
return log_error_errno(r, "Could not set destination prefix length: %m");
}
r = sd_netlink_call_async(link->manager->rtnl, m, callback, link, 0, NULL);
if (r < 0)
return log_error_errno(r, "Could not send rtnetlink message: %m");
link_ref(link);
return 0;
}
static int busname_coldplug(Unit *u) {
BusName *n = BUSNAME(u);
int r;
assert(n);
assert(n->state == BUSNAME_DEAD);
if (n->deserialized_state == n->state)
return 0;
if (n->control_pid > 0 &&
pid_is_unwaited(n->control_pid) &&
IN_SET(n->deserialized_state, BUSNAME_MAKING, BUSNAME_SIGTERM, BUSNAME_SIGKILL)) {
r = unit_watch_pid(UNIT(n), n->control_pid);
if (r < 0)
return r;
r = busname_arm_timer(n, usec_add(u->state_change_timestamp.monotonic, n->timeout_usec));
if (r < 0)
return r;
}
if (IN_SET(n->deserialized_state, BUSNAME_MAKING, BUSNAME_LISTENING, BUSNAME_REGISTERED, BUSNAME_RUNNING)) {
r = busname_open_fd(n);
if (r < 0)
return r;
}
if (n->deserialized_state == BUSNAME_LISTENING) {
r = busname_watch_fd(n);
if (r < 0)
return r;
}
busname_set_state(n, n->deserialized_state);
return 0;
}
int image_find(const char *name, Image **ret) {
const char *path;
int r;
assert(name);
/* There are no images with invalid names */
if (!image_name_is_valid(name))
return 0;
NULSTR_FOREACH(path, image_search_path) {
_cleanup_closedir_ DIR *d = NULL;
d = opendir(path);
if (!d) {
if (errno == ENOENT)
continue;
return -errno;
}
r = image_make(NULL, dirfd(d), path, name, ret);
if (IN_SET(r, 0, -ENOENT)) {
_cleanup_free_ char *raw = NULL;
raw = strappend(name, ".raw");
if (!raw)
return -ENOMEM;
r = image_make(NULL, dirfd(d), path, raw, ret);
if (IN_SET(r, 0, -ENOENT))
continue;
}
if (r < 0)
return r;
return 1;
}
static int scope_coldplug(Unit *u) {
Scope *s = SCOPE(u);
int r;
assert(s);
assert(s->state == SCOPE_DEAD);
if (s->deserialized_state != s->state) {
if (IN_SET(s->deserialized_state, SCOPE_STOP_SIGKILL, SCOPE_STOP_SIGTERM)) {
r = scope_arm_timer(s);
if (r < 0)
return r;
}
if (!IN_SET(s->deserialized_state, SCOPE_DEAD, SCOPE_FAILED))
unit_watch_all_pids(UNIT(s));
scope_set_state(s, s->deserialized_state);
}
return 0;
}
static int manager_resolve_handler(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata) {
Manager *m = userdata;
int r;
assert(q);
assert(m);
assert(m->current_server_name);
m->resolve_query = sd_resolve_query_unref(m->resolve_query);
if (ret != 0) {
log_debug("Failed to resolve %s: %s", m->current_server_name->string, gai_strerror(ret));
/* Try next host */
return manager_connect(m);
}
for (; ai; ai = ai->ai_next) {
_cleanup_free_ char *pretty = NULL;
ServerAddress *a;
assert(ai->ai_addr);
assert(ai->ai_addrlen >= offsetof(struct sockaddr, sa_data));
if (!IN_SET(ai->ai_addr->sa_family, AF_INET, AF_INET6)) {
log_warning("Unsuitable address protocol for %s", m->current_server_name->string);
continue;
}
r = server_address_new(m->current_server_name, &a, (const union sockaddr_union*) ai->ai_addr, ai->ai_addrlen);
if (r < 0) {
log_error("Failed to add server address: %s", strerror(-r));
return r;
}
server_address_pretty(a, &pretty);
log_debug("Resolved address %s for %s.", pretty, m->current_server_name->string);
}
if (!m->current_server_name->addresses) {
log_error("Failed to find suitable address for host %s.", m->current_server_name->string);
/* Try next host */
return manager_connect(m);
}
manager_set_server_address(m, m->current_server_name->addresses);
return manager_begin(m);
}
static void busname_set_state(BusName *n, BusNameState state) {
BusNameState old_state;
assert(n);
old_state = n->state;
n->state = state;
if (!IN_SET(state, BUSNAME_MAKING, BUSNAME_SIGTERM, BUSNAME_SIGKILL)) {
n->timer_event_source = sd_event_source_unref(n->timer_event_source);
busname_unwatch_control_pid(n);
}
if (state != BUSNAME_LISTENING)
busname_unwatch_fd(n);
if (!IN_SET(state, BUSNAME_LISTENING, BUSNAME_MAKING, BUSNAME_REGISTERED, BUSNAME_RUNNING))
busname_close_fd(n);
if (state != old_state)
log_unit_debug(UNIT(n), "Changed %s -> %s", busname_state_to_string(old_state), busname_state_to_string(state));
unit_notify(UNIT(n), state_translation_table[old_state], state_translation_table[state], true);
}
static int acquire_generator_dirs(
UnitFileScope scope,
const char *tempdir,
char **generator,
char **generator_early,
char **generator_late) {
_cleanup_free_ char *x = NULL, *y = NULL, *z = NULL;
const char *prefix;
assert(generator);
assert(generator_early);
assert(generator_late);
assert(IN_SET(scope, UNIT_FILE_SYSTEM, UNIT_FILE_USER, UNIT_FILE_GLOBAL));
if (scope == UNIT_FILE_GLOBAL)
return -EOPNOTSUPP;
if (tempdir)
prefix = tempdir;
else if (scope == UNIT_FILE_SYSTEM)
prefix = "/run/systemd";
else if (scope == UNIT_FILE_USER) {
const char *e;
e = getenv("XDG_RUNTIME_DIR");
if (!e)
return -ENXIO;
prefix = strjoina(e, "/systemd");
}
x = strappend(prefix, "/generator");
if (!x)
return -ENOMEM;
y = strappend(prefix, "/generator.early");
if (!y)
return -ENOMEM;
z = strappend(prefix, "/generator.late");
if (!z)
return -ENOMEM;
*generator = TAKE_PTR(x);
*generator_early = TAKE_PTR(y);
*generator_late = TAKE_PTR(z);
return 0;
}
