static int async_polkit_callback(sd_bus *bus, sd_bus_message *reply, void *userdata, sd_bus_error *error) {
_cleanup_bus_error_free_ sd_bus_error error_buffer = SD_BUS_ERROR_NULL;
AsyncPolkitQuery *q = userdata;
int r;
assert(bus);
assert(reply);
assert(q);
q->slot = sd_bus_slot_unref(q->slot);
q->reply = sd_bus_message_ref(reply);
r = sd_bus_message_rewind(q->request, true);
if (r < 0) {
r = sd_bus_reply_method_errno(q->request, r, NULL);
goto finish;
}
r = q->callback(bus, q->request, q->userdata, &error_buffer);
r = bus_maybe_reply_error(q->request, r, &error_buffer);
finish:
async_polkit_query_free(q);
return r;
}
static int count_addresses(sd_bus_message *m, int af, const char **canonical) {
int c = 0, r, ifindex;
assert(m);
assert(canonical);
r = sd_bus_message_read(m, "i", &ifindex);
if (r < 0)
return r;
r = sd_bus_message_enter_container(m, 'a', "(iay)");
if (r < 0)
return r;
while ((r = sd_bus_message_enter_container(m, 'r', "iay")) > 0) {
int family;
r = sd_bus_message_read(m, "i", &family);
if (r < 0)
return r;
r = sd_bus_message_skip(m, "ay");
if (r < 0)
return r;
r = sd_bus_message_exit_container(m);
if (r < 0)
return r;
if (af != AF_UNSPEC && family != af)
continue;
c ++;
}
if (r < 0)
return r;
r = sd_bus_message_exit_container(m);
if (r < 0)
return r;
r = sd_bus_message_read(m, "s", canonical);
if (r < 0)
return r;
r = sd_bus_message_rewind(m, true);
if (r < 0)
return r;
return c;
}
static int async_polkit_callback(sd_bus *bus, sd_bus_message *reply, void *userdata) {
AsyncPolkitQuery *q = userdata;
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r;
assert(bus);
assert(reply);
assert(q);
q->reply = sd_bus_message_ref(reply);
q->serial = 0;
m = sd_bus_message_ref(q->request);
r = sd_bus_message_rewind(m, true);
if (r < 0)
return r;
r = q->callback(bus, m, q->userdata);
if (r < 0)
return r;
return 1;
}
enum nss_status _nss_resolve_gethostbyaddr2_r(
const void* addr, socklen_t len,
int af,
struct hostent *result,
char *buffer, size_t buflen,
int *errnop, int *h_errnop,
int32_t *ttlp) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
char *r_name, *r_aliases, *r_addr, *r_addr_list;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
unsigned c = 0, i = 0;
size_t ms = 0, idx;
const char *n;
int r, ifindex;
assert(addr);
assert(result);
assert(buffer);
assert(errnop);
assert(h_errnop);
if (!IN_SET(af, AF_INET, AF_INET6)) {
*errnop = EAFNOSUPPORT;
*h_errnop = NO_DATA;
return NSS_STATUS_UNAVAIL;
}
if (len != FAMILY_ADDRESS_SIZE(af)) {
*errnop = EINVAL;
*h_errnop = NO_RECOVERY;
return NSS_STATUS_UNAVAIL;
}
r = sd_bus_open_system(&bus);
if (r < 0)
goto fail;
r = sd_bus_message_new_method_call(
bus,
&req,
"org.freedesktop.resolve1",
"/org/freedesktop/resolve1",
"org.freedesktop.resolve1.Manager",
"ResolveAddress");
if (r < 0)
goto fail;
r = sd_bus_message_set_auto_start(req, false);
if (r < 0)
goto fail;
r = sd_bus_message_append(req, "ii", 0, af);
if (r < 0)
goto fail;
r = sd_bus_message_append_array(req, 'y', addr, len);
if (r < 0)
goto fail;
r = sd_bus_message_append(req, "t", (uint64_t) 0);
if (r < 0)
goto fail;
r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
if (r < 0) {
if (sd_bus_error_has_name(&error, _BUS_ERROR_DNS "NXDOMAIN")) {
*errnop = ESRCH;
*h_errnop = HOST_NOT_FOUND;
return NSS_STATUS_NOTFOUND;
}
if (bus_error_shall_fallback(&error)) {
enum nss_status (*fallback)(
const void* addr, socklen_t len,
int af,
struct hostent *result,
char *buffer, size_t buflen,
int *errnop, int *h_errnop,
int32_t *ttlp);
fallback = (enum nss_status (*)(
const void* addr, socklen_t len,
int af,
struct hostent *result,
char *buffer, size_t buflen,
int *errnop, int *h_errnop,
int32_t *ttlp))
find_fallback("libnss_dns.so.2", "_nss_dns_gethostbyaddr2_r");
if (fallback)
return fallback(addr, len, af, result, buffer, buflen, errnop, h_errnop, ttlp);
}
*errnop = -r;
*h_errnop = NO_RECOVERY;
return NSS_STATUS_UNAVAIL;
}
r = sd_bus_message_enter_container(reply, 'a', "(is)");
if (r < 0)
goto fail;
while ((r = sd_bus_message_read(reply, "(is)", &ifindex, &n)) > 0) {
if (ifindex < 0) {
r = -EINVAL;
goto fail;
}
c++;
ms += ALIGN(strlen(n) + 1);
}
if (r < 0)
goto fail;
r = sd_bus_message_rewind(reply, false);
if (r < 0)
return r;
if (c <= 0) {
*errnop = ESRCH;
*h_errnop = HOST_NOT_FOUND;
return NSS_STATUS_NOTFOUND;
}
ms += ALIGN(len) + /* the address */
2 * sizeof(char*) + /* pointers to the address, plus trailing NULL */
c * sizeof(char*); /* pointers to aliases, plus trailing NULL */
if (buflen < ms) {
*errnop = ENOMEM;
*h_errnop = TRY_AGAIN;
return NSS_STATUS_TRYAGAIN;
}
/* First, place address */
r_addr = buffer;
memcpy(r_addr, addr, len);
idx = ALIGN(len);
/* Second, place address list */
r_addr_list = buffer + idx;
((char**) r_addr_list)[0] = r_addr;
((char**) r_addr_list)[1] = NULL;
idx += sizeof(char*) * 2;
/* Third, reserve space for the aliases array */
r_aliases = buffer + idx;
idx += sizeof(char*) * c;
/* Fourth, place aliases */
i = 0;
r_name = buffer + idx;
while ((r = sd_bus_message_read(reply, "(is)", &ifindex, &n)) > 0) {
char *p;
size_t l;
l = strlen(n);
p = buffer + idx;
memcpy(p, n, l+1);
if (i > 1)
((char**) r_aliases)[i-1] = p;
i++;
idx += ALIGN(l+1);
}
if (r < 0)
goto fail;
((char**) r_aliases)[c-1] = NULL;
assert(idx == ms);
result->h_name = r_name;
result->h_aliases = (char**) r_aliases;
result->h_addrtype = af;
result->h_length = len;
result->h_addr_list = (char**) r_addr_list;
if (ttlp)
*ttlp = 0;
/* Explicitly reset all error variables */
*errnop = 0;
*h_errnop = NETDB_SUCCESS;
h_errno = 0;
return NSS_STATUS_SUCCESS;
fail:
*errnop = -r;
*h_errnop = NO_DATA;
return NSS_STATUS_UNAVAIL;
}
int main(int argc, char *argv[]) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *copy = NULL;
int r, boolean;
const char *x, *x2, *y, *z, *a, *b, *c, *d, *a_signature;
uint8_t u, v;
void *buffer = NULL;
size_t sz;
char *h;
const int32_t integer_array[] = { -1, -2, 0, 1, 2 }, *return_array;
char *s;
_cleanup_free_ char *first = NULL, *second = NULL, *third = NULL;
_cleanup_fclose_ FILE *ms = NULL;
size_t first_size = 0, second_size = 0, third_size = 0;
_cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
double dbl;
uint64_t u64;
r = sd_bus_default_system(&bus);
if (r < 0)
return EXIT_TEST_SKIP;
r = sd_bus_message_new_method_call(bus, &m, "foobar.waldo", "/", "foobar.waldo", "Piep");
assert_se(r >= 0);
r = sd_bus_message_append(m, "");
assert_se(r >= 0);
r = sd_bus_message_append(m, "s", "a string");
assert_se(r >= 0);
r = sd_bus_message_append(m, "s", NULL);
assert_se(r >= 0);
r = sd_bus_message_append(m, "asg", 2, "string #1", "string #2", "sba(tt)ss");
assert_se(r >= 0);
r = sd_bus_message_append(m, "sass", "foobar", 5, "foo", "bar", "waldo", "piep", "pap", "after");
assert_se(r >= 0);
r = sd_bus_message_append(m, "a{yv}", 2, 3, "s", "foo", 5, "s", "waldo");
assert_se(r >= 0);
r = sd_bus_message_append(m, "y(ty)y(yt)y", 8, 777ULL, 7, 9, 77, 7777ULL, 10);
assert_se(r >= 0);
r = sd_bus_message_append(m, "()");
assert_se(r >= 0);
r = sd_bus_message_append(m, "ba(ss)", 255, 3, "aaa", "1", "bbb", "2", "ccc", "3");
assert_se(r >= 0);
r = sd_bus_message_open_container(m, 'a', "s");
assert_se(r >= 0);
r = sd_bus_message_append_basic(m, 's', "foobar");
assert_se(r >= 0);
r = sd_bus_message_append_basic(m, 's', "waldo");
assert_se(r >= 0);
r = sd_bus_message_close_container(m);
assert_se(r >= 0);
r = sd_bus_message_append_string_space(m, 5, &s);
assert_se(r >= 0);
strcpy(s, "hallo");
r = sd_bus_message_append_array(m, 'i', integer_array, sizeof(integer_array));
assert_se(r >= 0);
r = sd_bus_message_append_array(m, 'u', NULL, 0);
assert_se(r >= 0);
r = sd_bus_message_append(m, "a(stdo)", 1, "foo", 815ULL, 47.0, "/");
assert_se(r >= 0);
r = bus_message_seal(m, 4711, 0);
assert_se(r >= 0);
bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
ms = open_memstream(&first, &first_size);
bus_message_dump(m, ms, 0);
fflush(ms);
assert_se(!ferror(ms));
r = bus_message_get_blob(m, &buffer, &sz);
assert_se(r >= 0);
h = hexmem(buffer, sz);
assert_se(h);
log_info("message size = %zu, contents =\n%s", sz, h);
free(h);
#ifdef HAVE_GLIB
{
GDBusMessage *g;
char *p;
#if !defined(GLIB_VERSION_2_36)
g_type_init();
#endif
g = g_dbus_message_new_from_blob(buffer, sz, 0, NULL);
p = g_dbus_message_print(g, 0);
log_info("%s", p);
g_free(p);
g_object_unref(g);
}
#endif
#ifdef HAVE_DBUS
{
DBusMessage *w;
DBusError error;
dbus_error_init(&error);
w = dbus_message_demarshal(buffer, sz, &error);
if (!w)
log_error("%s", error.message);
else
dbus_message_unref(w);
dbus_error_free(&error);
}
#endif
m = sd_bus_message_unref(m);
r = bus_message_from_malloc(bus, buffer, sz, NULL, 0, NULL, &m);
assert_se(r >= 0);
bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
fclose(ms);
ms = open_memstream(&second, &second_size);
bus_message_dump(m, ms, 0);
fflush(ms);
assert_se(!ferror(ms));
assert_se(first_size == second_size);
assert_se(memcmp(first, second, first_size) == 0);
assert_se(sd_bus_message_rewind(m, true) >= 0);
r = sd_bus_message_read(m, "ssasg", &x, &x2, 2, &y, &z, &a_signature);
assert_se(r > 0);
assert_se(streq(x, "a string"));
assert_se(streq(x2, ""));
assert_se(streq(y, "string #1"));
assert_se(streq(z, "string #2"));
assert_se(streq(a_signature, "sba(tt)ss"));
r = sd_bus_message_read(m, "sass", &x, 5, &y, &z, &a, &b, &c, &d);
assert_se(r > 0);
assert_se(streq(x, "foobar"));
assert_se(streq(y, "foo"));
assert_se(streq(z, "bar"));
assert_se(streq(a, "waldo"));
assert_se(streq(b, "piep"));
assert_se(streq(c, "pap"));
assert_se(streq(d, "after"));
r = sd_bus_message_read(m, "a{yv}", 2, &u, "s", &x, &v, "s", &y);
assert_se(r > 0);
assert_se(u == 3);
assert_se(streq(x, "foo"));
assert_se(v == 5);
assert_se(streq(y, "waldo"));
r = sd_bus_message_read(m, "y(ty)", &v, &u64, &u);
assert_se(r > 0);
assert_se(v == 8);
assert_se(u64 == 777);
assert_se(u == 7);
r = sd_bus_message_read(m, "y(yt)", &v, &u, &u64);
assert_se(r > 0);
assert_se(v == 9);
assert_se(u == 77);
assert_se(u64 == 7777);
r = sd_bus_message_read(m, "y", &v);
assert_se(r > 0);
assert_se(v == 10);
r = sd_bus_message_read(m, "()");
assert_se(r > 0);
r = sd_bus_message_read(m, "ba(ss)", &boolean, 3, &x, &y, &a, &b, &c, &d);
assert_se(r > 0);
assert_se(boolean);
assert_se(streq(x, "aaa"));
assert_se(streq(y, "1"));
assert_se(streq(a, "bbb"));
assert_se(streq(b, "2"));
assert_se(streq(c, "ccc"));
assert_se(streq(d, "3"));
assert_se(sd_bus_message_verify_type(m, 'a', "s") > 0);
r = sd_bus_message_read(m, "as", 2, &x, &y);
assert_se(r > 0);
assert_se(streq(x, "foobar"));
assert_se(streq(y, "waldo"));
r = sd_bus_message_read_basic(m, 's', &s);
assert_se(r > 0);
assert_se(streq(s, "hallo"));
r = sd_bus_message_read_array(m, 'i', (const void**) &return_array, &sz);
assert_se(r > 0);
assert_se(sz == sizeof(integer_array));
assert_se(memcmp(integer_array, return_array, sz) == 0);
r = sd_bus_message_read_array(m, 'u', (const void**) &return_array, &sz);
assert_se(r > 0);
assert_se(sz == 0);
r = sd_bus_message_read(m, "a(stdo)", 1, &x, &u64, &dbl, &y);
assert_se(r > 0);
assert_se(streq(x, "foo"));
assert_se(u64 == 815ULL);
assert_se(fabs(dbl - 47.0) < 0.1);
assert_se(streq(y, "/"));
r = sd_bus_message_peek_type(m, NULL, NULL);
assert_se(r == 0);
r = sd_bus_message_new_method_call(bus, ©, "foobar.waldo", "/", "foobar.waldo", "Piep");
assert_se(r >= 0);
r = sd_bus_message_rewind(m, true);
assert_se(r >= 0);
r = sd_bus_message_copy(copy, m, true);
assert_se(r >= 0);
r = bus_message_seal(copy, 4712, 0);
assert_se(r >= 0);
fclose(ms);
ms = open_memstream(&third, &third_size);
bus_message_dump(copy, ms, 0);
fflush(ms);
assert_se(!ferror(ms));
printf("<%.*s>\n", (int) first_size, first);
printf("<%.*s>\n", (int) third_size, third);
assert_se(first_size == third_size);
assert_se(memcmp(first, third, third_size) == 0);
r = sd_bus_message_rewind(m, true);
assert_se(r >= 0);
assert_se(sd_bus_message_verify_type(m, 's', NULL) > 0);
r = sd_bus_message_skip(m, "ssasg");
assert_se(r > 0);
assert_se(sd_bus_message_verify_type(m, 's', NULL) > 0);
r = sd_bus_message_skip(m, "sass");
assert_se(r >= 0);
assert_se(sd_bus_message_verify_type(m, 'a', "{yv}") > 0);
r = sd_bus_message_skip(m, "a{yv}y(ty)y(yt)y()");
assert_se(r >= 0);
assert_se(sd_bus_message_verify_type(m, 'b', NULL) > 0);
r = sd_bus_message_read(m, "b", &boolean);
assert_se(r > 0);
assert_se(boolean);
r = sd_bus_message_enter_container(m, 0, NULL);
assert_se(r > 0);
r = sd_bus_message_read(m, "(ss)", &x, &y);
assert_se(r > 0);
r = sd_bus_message_read(m, "(ss)", &a, &b);
assert_se(r > 0);
r = sd_bus_message_read(m, "(ss)", &c, &d);
assert_se(r > 0);
r = sd_bus_message_read(m, "(ss)", &x, &y);
assert_se(r == 0);
r = sd_bus_message_exit_container(m);
assert_se(r >= 0);
assert_se(streq(x, "aaa"));
assert_se(streq(y, "1"));
assert_se(streq(a, "bbb"));
assert_se(streq(b, "2"));
assert_se(streq(c, "ccc"));
assert_se(streq(d, "3"));
test_bus_label_escape();
test_bus_path_encode();
test_bus_path_encode_unique();
test_bus_path_encode_many();
return 0;
}
int main(int argc, char *argv[]) {
_cleanup_free_ char *name = NULL, *bus_name = NULL, *address = NULL;
const char *unique;
uint8_t *p;
sd_bus *a, *b;
int r, bus_ref;
sd_bus_message *m;
int f;
uint64_t sz;
uint32_t u32;
size_t i, l;
char *s;
_cleanup_close_ int sfd = -1;
log_set_max_level(LOG_DEBUG);
assert_se(asprintf(&name, "deine-mutter-%u", (unsigned) getpid()) >= 0);
bus_ref = bus_kernel_create_bus(name, false, &bus_name);
if (bus_ref == -ENOENT)
return EXIT_TEST_SKIP;
assert_se(bus_ref >= 0);
address = strappend("kernel:path=", bus_name);
assert_se(address);
r = sd_bus_new(&a);
assert_se(r >= 0);
r = sd_bus_new(&b);
assert_se(r >= 0);
r = sd_bus_set_address(a, address);
assert_se(r >= 0);
r = sd_bus_set_address(b, address);
assert_se(r >= 0);
r = sd_bus_start(a);
assert_se(r >= 0);
r = sd_bus_start(b);
assert_se(r >= 0);
r = sd_bus_get_unique_name(a, &unique);
assert_se(r >= 0);
r = sd_bus_message_new_method_call(b, &m, unique, "/a/path", "an.inter.face", "AMethod");
assert_se(r >= 0);
r = sd_bus_message_open_container(m, 'r', "aysay");
assert_se(r >= 0);
r = sd_bus_message_append_array_space(m, 'y', FIRST_ARRAY, (void**) &p);
assert_se(r >= 0);
p[0] = '<';
memset(p+1, 'L', FIRST_ARRAY-2);
p[FIRST_ARRAY-1] = '>';
f = memfd_new_and_map(NULL, STRING_SIZE, (void**) &s);
assert_se(f >= 0);
s[0] = '<';
for (i = 1; i < STRING_SIZE-2; i++)
s[i] = '0' + (i % 10);
s[STRING_SIZE-2] = '>';
s[STRING_SIZE-1] = 0;
munmap(s, STRING_SIZE);
r = memfd_get_size(f, &sz);
assert_se(r >= 0);
assert_se(sz == STRING_SIZE);
r = sd_bus_message_append_string_memfd(m, f, 0, (uint64_t) -1);
assert_se(r >= 0);
close(f);
f = memfd_new_and_map(NULL, SECOND_ARRAY, (void**) &p);
assert_se(f >= 0);
p[0] = '<';
memset(p+1, 'P', SECOND_ARRAY-2);
p[SECOND_ARRAY-1] = '>';
munmap(p, SECOND_ARRAY);
r = memfd_get_size(f, &sz);
assert_se(r >= 0);
assert_se(sz == SECOND_ARRAY);
r = sd_bus_message_append_array_memfd(m, 'y', f, 0, (uint64_t) -1);
assert_se(r >= 0);
close(f);
r = sd_bus_message_close_container(m);
assert_se(r >= 0);
r = sd_bus_message_append(m, "u", 4711);
assert_se(r >= 0);
assert_se((sfd = memfd_new_and_map(NULL, 6, (void**) &p)) >= 0);
memcpy(p, "abcd\0", 6);
munmap(p, 6);
assert_se(sd_bus_message_append_string_memfd(m, sfd, 1, 4) >= 0);
r = bus_message_seal(m, 55, 99*USEC_PER_SEC);
assert_se(r >= 0);
bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
r = sd_bus_send(b, m, NULL);
assert_se(r >= 0);
sd_bus_message_unref(m);
r = sd_bus_process(a, &m);
assert_se(r > 0);
bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
sd_bus_message_rewind(m, true);
r = sd_bus_message_enter_container(m, 'r', "aysay");
assert_se(r > 0);
r = sd_bus_message_read_array(m, 'y', (const void**) &p, &l);
assert_se(r > 0);
assert_se(l == FIRST_ARRAY);
assert_se(p[0] == '<');
for (i = 1; i < l-1; i++)
assert_se(p[i] == 'L');
assert_se(p[l-1] == '>');
r = sd_bus_message_read(m, "s", &s);
assert_se(r > 0);
assert_se(s[0] == '<');
for (i = 1; i < STRING_SIZE-2; i++)
assert_se(s[i] == (char) ('0' + (i % 10)));
assert_se(s[STRING_SIZE-2] == '>');
assert_se(s[STRING_SIZE-1] == 0);
r = sd_bus_message_read_array(m, 'y', (const void**) &p, &l);
assert_se(r > 0);
assert_se(l == SECOND_ARRAY);
assert_se(p[0] == '<');
for (i = 1; i < l-1; i++)
assert_se(p[i] == 'P');
assert_se(p[l-1] == '>');
r = sd_bus_message_exit_container(m);
assert_se(r > 0);
r = sd_bus_message_read(m, "u", &u32);
assert_se(r > 0);
assert_se(u32 == 4711);
r = sd_bus_message_read(m, "s", &s);
assert_se(r > 0);
assert_se(streq_ptr(s, "bcd"));
sd_bus_message_unref(m);
sd_bus_unref(a);
sd_bus_unref(b);
return 0;
}
int bus_match_run(
sd_bus *bus,
struct bus_match_node *node,
sd_bus_message *m) {
const char *test_str = NULL;
uint8_t test_u8 = 0;
int r;
assert(m);
if (!node)
return 0;
if (bus && bus->match_callbacks_modified)
return 0;
/* Not these special semantics: when traversing the tree we
* usually let bus_match_run() when called for a node
* recursively invoke bus_match_run(). There's are two
* exceptions here though, which are BUS_NODE_ROOT (which
* cannot have a sibling), and BUS_NODE_VALUE (whose siblings
* are invoked anyway by its parent. */
switch (node->type) {
case BUS_MATCH_ROOT:
/* Run all children. Since we cannot have any siblings
* we won't call any. The children of the root node
* are compares or leaves, they will automatically
* call their siblings. */
return bus_match_run(bus, node->child, m);
case BUS_MATCH_VALUE:
/* Run all children. We don't execute any siblings, we
* assume our caller does that. The children of value
* nodes are compares or leaves, they will
* automatically call their siblings */
assert(node->child);
return bus_match_run(bus, node->child, m);
case BUS_MATCH_LEAF:
if (bus) {
if (node->leaf.last_iteration == bus->iteration_counter)
return 0;
node->leaf.last_iteration = bus->iteration_counter;
}
r = sd_bus_message_rewind(m, true);
if (r < 0)
return r;
/* Run the callback. And then invoke siblings. */
if (node->leaf.callback) {
_cleanup_bus_error_free_ sd_bus_error error_buffer = SD_BUS_ERROR_NULL;
r = node->leaf.callback(bus, m, node->leaf.userdata, &error_buffer);
r = bus_maybe_reply_error(m, r, &error_buffer);
if (r != 0)
return r;
}
return bus_match_run(bus, node->next, m);
case BUS_MATCH_MESSAGE_TYPE:
test_u8 = m->header->type;
break;
case BUS_MATCH_SENDER:
test_str = m->sender;
/* FIXME: resolve test_str from a well-known to a unique name first */
break;
case BUS_MATCH_DESTINATION:
test_str = m->destination;
break;
case BUS_MATCH_INTERFACE:
test_str = m->interface;
break;
case BUS_MATCH_MEMBER:
test_str = m->member;
break;
case BUS_MATCH_PATH:
case BUS_MATCH_PATH_NAMESPACE:
test_str = m->path;
break;
case BUS_MATCH_ARG ... BUS_MATCH_ARG_LAST:
test_str = bus_message_get_arg(m, node->type - BUS_MATCH_ARG);
break;
case BUS_MATCH_ARG_PATH ... BUS_MATCH_ARG_PATH_LAST:
test_str = bus_message_get_arg(m, node->type - BUS_MATCH_ARG_PATH);
break;
case BUS_MATCH_ARG_NAMESPACE ... BUS_MATCH_ARG_NAMESPACE_LAST:
test_str = bus_message_get_arg(m, node->type - BUS_MATCH_ARG_NAMESPACE);
break;
default:
assert_not_reached("Unknown match type.");
}
if (BUS_MATCH_CAN_HASH(node->type)) {
struct bus_match_node *found;
/* Lookup via hash table, nice! So let's jump directly. */
if (test_str)
found = hashmap_get(node->compare.children, test_str);
else if (node->type == BUS_MATCH_MESSAGE_TYPE)
found = hashmap_get(node->compare.children, UINT_TO_PTR(test_u8));
else
found = NULL;
if (found) {
r = bus_match_run(bus, found, m);
if (r != 0)
return r;
}
} else {
struct bus_match_node *c;
/* No hash table, so let's iterate manually... */
for (c = node->child; c; c = c->next) {
if (!value_node_test(c, node->type, test_u8, test_str))
continue;
r = bus_match_run(bus, c, m);
if (r != 0)
return r;
}
}
if (bus && bus->match_callbacks_modified)
return 0;
/* And now, let's invoke our siblings */
return bus_match_run(bus, node->next, m);
}
int main(int argc, char *argv[]) {
_cleanup_close_ int bus_ref = -1;
_cleanup_free_ char *name = NULL, *bus_name = NULL, *address = NULL, *bname = NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
const char *ua = NULL, *ub = NULL, *the_string = NULL;
sd_bus *a, *b;
int r, pipe_fds[2];
const char *nn;
log_set_max_level(LOG_DEBUG);
assert_se(asprintf(&name, "deine-mutter-%u", (unsigned) getpid()) >= 0);
bus_ref = bus_kernel_create_bus(name, false, &bus_name);
if (bus_ref == -ENOENT)
return EXIT_TEST_SKIP;
assert_se(bus_ref >= 0);
address = strappend("kernel:path=", bus_name);
assert_se(address);
r = sd_bus_new(&a);
assert_se(r >= 0);
r = sd_bus_new(&b);
assert_se(r >= 0);
r = sd_bus_set_description(a, "a");
assert_se(r >= 0);
r = sd_bus_set_address(a, address);
assert_se(r >= 0);
r = sd_bus_set_address(b, address);
assert_se(r >= 0);
assert_se(sd_bus_negotiate_timestamp(a, 1) >= 0);
assert_se(sd_bus_negotiate_creds(a, true, _SD_BUS_CREDS_ALL) >= 0);
assert_se(sd_bus_negotiate_timestamp(b, 0) >= 0);
assert_se(sd_bus_negotiate_creds(b, true, 0) >= 0);
r = sd_bus_start(a);
assert_se(r >= 0);
r = sd_bus_start(b);
assert_se(r >= 0);
assert_se(sd_bus_negotiate_timestamp(b, 1) >= 0);
assert_se(sd_bus_negotiate_creds(b, true, _SD_BUS_CREDS_ALL) >= 0);
r = sd_bus_get_unique_name(a, &ua);
assert_se(r >= 0);
printf("unique a: %s\n", ua);
r = sd_bus_get_description(a, &nn);
assert_se(r >= 0);
printf("name of a: %s\n", nn);
r = sd_bus_get_unique_name(b, &ub);
assert_se(r >= 0);
printf("unique b: %s\n", ub);
r = sd_bus_get_description(b, &nn);
assert_se(r >= 0);
printf("name of b: %s\n", nn);
assert_se(bus_kernel_get_bus_name(b, &bname) >= 0);
assert_se(endswith(bname, name));
r = sd_bus_call_method(a, "this.doesnt.exist", "/foo", "meh.mah", "muh", &error, NULL, "s", "yayayay");
assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_SERVICE_UNKNOWN));
assert_se(r == -EHOSTUNREACH);
r = sd_bus_add_match(b, NULL, "interface='waldo.com',member='Piep'", NULL, NULL);
assert_se(r >= 0);
r = sd_bus_emit_signal(a, "/foo/bar/waldo", "waldo.com", "Piep", "sss", "I am a string", "/this/is/a/path", "and.this.a.domain.name");
assert_se(r >= 0);
r = sd_bus_try_close(b);
assert_se(r == -EBUSY);
r = sd_bus_process_priority(b, -10, &m);
assert_se(r == 0);
r = sd_bus_process(b, &m);
assert_se(r > 0);
assert_se(m);
bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
assert_se(sd_bus_message_rewind(m, true) >= 0);
r = sd_bus_message_read(m, "s", &the_string);
assert_se(r >= 0);
assert_se(streq(the_string, "I am a string"));
sd_bus_message_unref(m);
m = NULL;
r = sd_bus_request_name(a, "net.x0pointer.foobar", 0);
assert_se(r >= 0);
r = sd_bus_message_new_method_call(b, &m, "net.x0pointer.foobar", "/a/path", "an.inter.face", "AMethod");
assert_se(r >= 0);
assert_se(pipe2(pipe_fds, O_CLOEXEC) >= 0);
assert_se(write(pipe_fds[1], "x", 1) == 1);
pipe_fds[1] = safe_close(pipe_fds[1]);
r = sd_bus_message_append(m, "h", pipe_fds[0]);
assert_se(r >= 0);
pipe_fds[0] = safe_close(pipe_fds[0]);
r = sd_bus_send(b, m, NULL);
assert_se(r >= 0);
for (;;) {
sd_bus_message_unref(m);
m = NULL;
r = sd_bus_process(a, &m);
assert_se(r > 0);
assert_se(m);
bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER);
assert_se(sd_bus_message_rewind(m, true) >= 0);
if (sd_bus_message_is_method_call(m, "an.inter.face", "AMethod")) {
int fd;
char x;
r = sd_bus_message_read(m, "h", &fd);
assert_se(r >= 0);
assert_se(read(fd, &x, 1) == 1);
assert_se(x == 'x');
break;
}
}
r = sd_bus_release_name(a, "net.x0pointer.foobar");
assert_se(r >= 0);
r = sd_bus_release_name(a, "net.x0pointer.foobar");
assert_se(r == -ESRCH);
r = sd_bus_try_close(a);
assert_se(r >= 0);
sd_bus_unref(a);
sd_bus_unref(b);
return 0;
}
int main(int argc, char *argv[]) {
_cleanup_close_ int bus_ref = -1;
_cleanup_free_ char *bus_name = NULL, *address = NULL;
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
const char *ua = NULL, *ub = NULL, *the_string = NULL;
sd_bus *a, *b;
int r, pipe_fds[2];
log_set_max_level(LOG_DEBUG);
bus_ref = bus_kernel_create("deine-mutter", &bus_name);
if (bus_ref == -ENOENT)
return EXIT_TEST_SKIP;
assert_se(bus_ref >= 0);
address = strappend("kernel:path=", bus_name);
assert_se(address);
r = sd_bus_new(&a);
assert_se(r >= 0);
r = sd_bus_new(&b);
assert_se(r >= 0);
r = sd_bus_set_address(a, address);
assert_se(r >= 0);
r = sd_bus_set_address(b, address);
assert_se(r >= 0);
assert_se(sd_bus_negotiate_attach_comm(a, 1) >= 0);
assert_se(sd_bus_negotiate_attach_exe(a, 1) >= 0);
assert_se(sd_bus_negotiate_attach_cmdline(a, 1) >= 0);
assert_se(sd_bus_negotiate_attach_cgroup(a, 1) >= 0);
assert_se(sd_bus_negotiate_attach_caps(a, 1) >= 0);
assert_se(sd_bus_negotiate_attach_selinux_context(a, 1) >= 0);
assert_se(sd_bus_negotiate_attach_audit(a, 1) >= 0);
assert_se(sd_bus_negotiate_attach_comm(b, 1) >= 0);
assert_se(sd_bus_negotiate_attach_exe(b, 1) >= 0);
assert_se(sd_bus_negotiate_attach_cmdline(b, 1) >= 0);
assert_se(sd_bus_negotiate_attach_cgroup(b, 1) >= 0);
assert_se(sd_bus_negotiate_attach_caps(b, 1) >= 0);
assert_se(sd_bus_negotiate_attach_selinux_context(b, 1) >= 0);
assert_se(sd_bus_negotiate_attach_audit(b, 1) >= 0);
r = sd_bus_start(a);
assert_se(r >= 0);
r = sd_bus_start(b);
assert_se(r >= 0);
r = sd_bus_get_unique_name(a, &ua);
assert_se(r >= 0);
printf("unique a: %s\n", ua);
r = sd_bus_get_unique_name(b, &ub);
assert_se(r >= 0);
printf("unique b: %s\n", ub);
r = sd_bus_add_match(b, "interface='waldo.com',member='Piep'", NULL, NULL);
assert_se(r >= 0);
r = sd_bus_emit_signal(a, "/foo/bar/waldo", "waldo.com", "Piep", "sss", "I am a string", "/this/is/a/path", "and.this.a.domain.name");
assert_se(r >= 0);
r = sd_bus_process(b, &m);
assert_se(r > 0);
assert_se(m);
bus_message_dump(m);
assert_se(sd_bus_message_rewind(m, true) >= 0);
r = sd_bus_message_read(m, "s", &the_string);
assert_se(r >= 0);
assert_se(streq(the_string, "I am a string"));
sd_bus_message_unref(m);
m = NULL;
r = sd_bus_request_name(a, "net.x0pointer.foobar", 0);
assert_se(r >= 0);
r = sd_bus_message_new_method_call(b, "net.x0pointer.foobar", "/a/path", "an.inter.face", "AMethod", &m);
assert_se(r >= 0);
assert_se(pipe2(pipe_fds, O_CLOEXEC) >= 0);
assert_se(write(pipe_fds[1], "x", 1) == 1);
close_nointr_nofail(pipe_fds[1]);
pipe_fds[1] = -1;
r = sd_bus_message_append(m, "h", pipe_fds[0]);
assert_se(r >= 0);
close_nointr_nofail(pipe_fds[0]);
pipe_fds[0] = -1;
r = sd_bus_send(b, m, NULL);
assert_se(r >= 0);
for (;;) {
sd_bus_message_unref(m);
m = NULL;
r = sd_bus_process(a, &m);
assert_se(r > 0);
assert_se(m);
bus_message_dump(m);
assert_se(sd_bus_message_rewind(m, true) >= 0);
if (sd_bus_message_is_method_call(m, "an.inter.face", "AMethod")) {
int fd;
char x;
r = sd_bus_message_read(m, "h", &fd);
assert_se(r >= 0);
assert_se(read(fd, &x, 1) == 1);
assert_se(x == 'x');
break;
}
}
r = sd_bus_release_name(a, "net.x0pointer.foobar");
assert_se(r >= 0);
r = sd_bus_release_name(a, "net.x0pointer.foobar");
assert_se(r == -ESRCH);
sd_bus_unref(a);
sd_bus_unref(b);
return 0;
}
int main(int argc, char *argv[]) {
_cleanup_free_ char *bus_name = NULL, *address = NULL;
uint8_t *p;
sd_bus *a, *b;
int r, bus_ref;
sd_bus_message *m;
sd_memfd *f;
uint64_t sz;
uint32_t u32;
size_t i, l;
char *s;
log_set_max_level(LOG_DEBUG);
bus_ref = bus_kernel_create("deine-mutter", &bus_name);
if (bus_ref == -ENOENT)
return EXIT_TEST_SKIP;
assert_se(bus_ref >= 0);
address = strappend("kernel:path=", bus_name);
assert_se(address);
r = sd_bus_new(&a);
assert_se(r >= 0);
r = sd_bus_new(&b);
assert_se(r >= 0);
r = sd_bus_set_address(a, address);
assert_se(r >= 0);
r = sd_bus_set_address(b, address);
assert_se(r >= 0);
r = sd_bus_start(a);
assert_se(r >= 0);
r = sd_bus_start(b);
assert_se(r >= 0);
r = sd_bus_message_new_method_call(b, ":1.1", "/a/path", "an.inter.face", "AMethod", &m);
assert_se(r >= 0);
r = sd_bus_message_open_container(m, 'r', "aysay");
assert_se(r >= 0);
r = sd_bus_message_append_array_space(m, 'y', FIRST_ARRAY, (void**) &p);
assert_se(r >= 0);
memset(p, 'L', FIRST_ARRAY);
r = sd_memfd_new_and_map(&f, STRING_SIZE, (void**) &s);
assert_se(r >= 0);
for (i = 0; i < STRING_SIZE-1; i++)
s[i] = '0' + (i % 10);
s[STRING_SIZE-1] = 0;
munmap(s, STRING_SIZE);
r = sd_memfd_get_size(f, &sz);
assert_se(r >= 0);
assert_se(sz == STRING_SIZE);
r = sd_bus_message_append_string_memfd(m, f);
assert_se(r >= 0);
sd_memfd_free(f);
r = sd_memfd_new_and_map(&f, SECOND_ARRAY, (void**) &p);
assert_se(r >= 0);
memset(p, 'P', SECOND_ARRAY);
munmap(p, SECOND_ARRAY);
r = sd_memfd_get_size(f, &sz);
assert_se(r >= 0);
assert_se(sz == SECOND_ARRAY);
r = sd_bus_message_append_array_memfd(m, 'y', f);
assert_se(r >= 0);
sd_memfd_free(f);
r = sd_bus_message_close_container(m);
assert_se(r >= 0);
r = sd_bus_message_append(m, "u", 4711);
assert_se(r >= 0);
r = bus_message_seal(m, 55);
assert_se(r >= 0);
bus_message_dump(m, stdout, true);
r = sd_bus_send(b, m, NULL);
assert_se(r >= 0);
sd_bus_message_unref(m);
r = sd_bus_process(a, &m);
assert_se(r > 0);
bus_message_dump(m, stdout, true);
sd_bus_message_rewind(m, true);
r = sd_bus_message_enter_container(m, 'r', "aysay");
assert_se(r > 0);
r = sd_bus_message_read_array(m, 'y', (const void**) &p, &l);
assert_se(r > 0);
assert_se(l == FIRST_ARRAY);
for (i = 0; i < l; i++)
assert_se(p[i] == 'L');
r = sd_bus_message_read(m, "s", &s);
assert_se(r > 0);
for (i = 0; i < STRING_SIZE-1; i++)
assert_se(s[i] == (char) ('0' + (i % 10)));
assert_se(s[STRING_SIZE-1] == 0);
r = sd_bus_message_read_array(m, 'y', (const void**) &p, &l);
assert_se(r > 0);
assert_se(l == SECOND_ARRAY);
for (i = 0; i < l; i++)
assert_se(p[i] == 'P');
r = sd_bus_message_exit_container(m);
assert_se(r > 0);
r = sd_bus_message_read(m, "u", &u32);
assert_se(r > 0);
assert_se(u32 == 4711);
sd_bus_message_unref(m);
sd_bus_unref(a);
sd_bus_unref(b);
return 0;
}
int main(int argc, char *argv[]) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r, boolean;
const char *x, *y, *z, *a, *b, *c, *d;
uint8_t u, v;
void *buffer = NULL;
size_t sz;
char *h;
const int32_t integer_array[] = { -1, -2, 0, 1, 2 }, *return_array;
r = sd_bus_message_new_method_call(NULL, "foobar.waldo", "/", "foobar.waldo", "Piep", &m);
assert_se(r >= 0);
r = sd_bus_message_append(m, "s", "a string");
assert_se(r >= 0);
r = sd_bus_message_append(m, "s", NULL);
assert_se(r < 0);
r = sd_bus_message_append(m, "as", 2, "string #1", "string #2");
assert_se(r >= 0);
r = sd_bus_message_append(m, "sass", "foobar", 5, "foo", "bar", "waldo", "piep", "pap", "after");
assert_se(r >= 0);
r = sd_bus_message_append(m, "a{yv}", 2, 3, "s", "foo", 5, "s", "waldo");
assert_se(r >= 0);
r = sd_bus_message_append(m, "ba(ss)", 255, 3, "aaa", "1", "bbb", "2", "ccc", "3");
assert_se(r >= 0);
r = sd_bus_message_open_container(m, 'a', "s");
assert_se(r >= 0);
r = sd_bus_message_append_basic(m, 's', "foobar");
assert_se(r >= 0);
r = sd_bus_message_append_basic(m, 's', "waldo");
assert_se(r >= 0);
r = sd_bus_message_close_container(m);
assert_se(r >= 0);
r = sd_bus_message_append_array(m, 'i', integer_array, sizeof(integer_array));
assert_se(r >= 0);
r = bus_message_seal(m, 4711);
assert_se(r >= 0);
bus_message_dump(m);
r = bus_message_get_blob(m, &buffer, &sz);
assert_se(r >= 0);
h = hexmem(buffer, sz);
assert_se(h);
log_info("message size = %lu, contents =\n%s", (unsigned long) sz, h);
free(h);
#ifdef HAVE_GLIB
{
GDBusMessage *g;
char *p;
#if !defined(GLIB_VERSION_2_36)
g_type_init();
#endif
g = g_dbus_message_new_from_blob(buffer, sz, 0, NULL);
p = g_dbus_message_print(g, 0);
log_info("%s", p);
g_free(p);
g_object_unref(g);
}
#endif
{
DBusMessage *w;
DBusError error;
dbus_error_init(&error);
w = dbus_message_demarshal(buffer, sz, &error);
if (!w) {
log_error("%s", error.message);
} else
dbus_message_unref(w);
}
m = sd_bus_message_unref(m);
r = bus_message_from_malloc(buffer, sz, NULL, 0, NULL, NULL, &m);
assert_se(r >= 0);
bus_message_dump(m);
assert_se(sd_bus_message_rewind(m, true) >= 0);
r = sd_bus_message_read(m, "sas", &x, 2, &y, &z);
assert_se(r > 0);
assert_se(streq(x, "a string"));
assert_se(streq(y, "string #1"));
assert_se(streq(z, "string #2"));
r = sd_bus_message_read(m, "sass", &x, 5, &y, &z, &a, &b, &c, &d);
assert_se(r > 0);
assert_se(streq(x, "foobar"));
assert_se(streq(y, "foo"));
assert_se(streq(z, "bar"));
assert_se(streq(a, "waldo"));
assert_se(streq(b, "piep"));
assert_se(streq(c, "pap"));
assert_se(streq(d, "after"));
r = sd_bus_message_read(m, "a{yv}", 2, &u, "s", &x, &v, "s", &y);
assert_se(r > 0);
assert_se(u == 3);
assert_se(streq(x, "foo"));
assert_se(v == 5);
assert_se(streq(y, "waldo"));
r = sd_bus_message_read(m, "ba(ss)", &boolean, 3, &x, &y, &a, &b, &c, &d);
assert_se(r > 0);
assert_se(boolean);
assert_se(streq(x, "aaa"));
assert_se(streq(y, "1"));
assert_se(streq(a, "bbb"));
assert_se(streq(b, "2"));
assert_se(streq(c, "ccc"));
assert_se(streq(d, "3"));
r = sd_bus_message_read(m, "as", 2, &x, &y);
assert_se(r > 0);
assert_se(streq(x, "foobar"));
assert_se(streq(y, "waldo"));
r = sd_bus_message_read_array(m, 'i', (const void**) &return_array, &sz);
assert_se(r > 0);
assert_se(sz == sizeof(integer_array));
assert_se(memcmp(integer_array, return_array, sz) == 0);
r = sd_bus_message_peek_type(m, NULL, NULL);
assert_se(r == 0);
return 0;
}
int main(int argc, char *argv[]) {
_cleanup_close_ int bus_ref = -1;
_cleanup_free_ char *bus_name = NULL, *address = NULL;
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
const char *ua = NULL, *ub = NULL, *the_string = NULL;
sd_bus *a, *b;
int r, pipe_fds[2];
bus_ref = bus_kernel_create("deine-mutter", &bus_name);
if (bus_ref == -ENOENT)
return EXIT_TEST_SKIP;
assert_se(bus_ref >= 0);
address = strappend("kernel:path=", bus_name);
assert_se(address);
r = sd_bus_new(&a);
assert_se(r >= 0);
r = sd_bus_new(&b);
assert_se(r >= 0);
r = sd_bus_set_address(a, address);
assert_se(r >= 0);
r = sd_bus_set_address(b, address);
assert_se(r >= 0);
r = sd_bus_start(a);
assert_se(r >= 0);
r = sd_bus_start(b);
assert_se(r >= 0);
r = sd_bus_get_unique_name(a, &ua);
assert_se(r >= 0);
printf("unique a: %s\n", ua);
r = sd_bus_get_unique_name(b, &ub);
assert_se(r >= 0);
printf("unique b: %s\n", ub);
{
//FIXME:
struct kdbus_cmd_match cmd_match;
cmd_match.size = sizeof(cmd_match);
cmd_match.src_id = KDBUS_MATCH_SRC_ID_ANY;
r = ioctl(sd_bus_get_fd(a), KDBUS_CMD_MATCH_ADD, &cmd_match);
assert_se(r >= 0);
r = ioctl(sd_bus_get_fd(b), KDBUS_CMD_MATCH_ADD, &cmd_match);
assert_se(r >= 0);
}
r = sd_bus_emit_signal(a, "/foo/bar/waldo", "waldo.com", "Piep", "sss", "I am a string", "/this/is/a/path", "and.this.a.domain.name");
assert_se(r >= 0);
r = sd_bus_process(b, &m);
assert_se(r > 0);
assert_se(m);
bus_message_dump(m);
assert_se(sd_bus_message_rewind(m, true) >= 0);
r = sd_bus_message_read(m, "s", &the_string);
assert_se(r >= 0);
assert_se(streq(the_string, "I am a string"));
sd_bus_message_unref(m);
m = NULL;
r = sd_bus_request_name(a, "net.x0pointer.foobar", 0);
assert_se(r >= 0);
r = sd_bus_message_new_method_call(b, "net.x0pointer.foobar", "/a/path", "an.inter.face", "AMethod", &m);
assert_se(r >= 0);
assert_se(pipe2(pipe_fds, O_CLOEXEC) >= 0);
assert_se(write(pipe_fds[1], "x", 1) == 1);
close_nointr_nofail(pipe_fds[1]);
pipe_fds[1] = -1;
r = sd_bus_message_append(m, "h", pipe_fds[0]);
assert_se(r >= 0);
close_nointr_nofail(pipe_fds[0]);
pipe_fds[0] = -1;
r = sd_bus_send(b, m, NULL);
assert_se(r >= 0);
for (;;) {
sd_bus_message_unref(m);
m = NULL;
r = sd_bus_process(a, &m);
assert_se(r > 0);
assert_se(m);
bus_message_dump(m);
assert_se(sd_bus_message_rewind(m, true) >= 0);
if (sd_bus_message_is_method_call(m, "an.inter.face", "AMethod")) {
int fd;
char x;
r = sd_bus_message_read(m, "h", &fd);
assert_se(r >= 0);
assert_se(read(fd, &x, 1) == 1);
assert_se(x == 'x');
break;
}
}
r = sd_bus_release_name(a, "net.x0pointer.foobar");
assert_se(r >= 0);
r = sd_bus_release_name(a, "net.x0pointer.foobar");
assert_se(r == -ESRCH);
sd_bus_unref(a);
sd_bus_unref(b);
return 0;
}
enum nss_status _nss_resolve_gethostbyaddr2_r(
const void* addr, socklen_t len,
int af,
struct hostent *result,
char *buffer, size_t buflen,
int *errnop, int *h_errnop,
int32_t *ttlp) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
char *r_name, *r_aliases, *r_addr, *r_addr_list;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
enum nss_status ret = NSS_STATUS_UNAVAIL;
unsigned c = 0, i = 0;
size_t ms = 0, idx;
const char *n;
int r, ifindex;
PROTECT_ERRNO;
BLOCK_SIGNALS(NSS_SIGNALS_BLOCK);
assert(addr);
assert(result);
assert(buffer);
assert(errnop);
assert(h_errnop);
if (!IN_SET(af, AF_INET, AF_INET6)) {
*errnop = EAFNOSUPPORT;
*h_errnop = NO_DATA;
return NSS_STATUS_UNAVAIL;
}
if (len != FAMILY_ADDRESS_SIZE(af)) {
*errnop = EINVAL;
*h_errnop = NO_RECOVERY;
return NSS_STATUS_UNAVAIL;
}
if (avoid_deadlock()) {
r = -EDEADLK;
goto fail;
}
r = sd_bus_open_system(&bus);
if (r < 0)
goto fail;
r = sd_bus_message_new_method_call(
bus,
&req,
"org.freedesktop.resolve1",
"/org/freedesktop/resolve1",
"org.freedesktop.resolve1.Manager",
"ResolveAddress");
if (r < 0)
goto fail;
r = sd_bus_message_set_auto_start(req, false);
if (r < 0)
goto fail;
r = sd_bus_message_append(req, "ii", 0, af);
if (r < 0)
goto fail;
r = sd_bus_message_append_array(req, 'y', addr, len);
if (r < 0)
goto fail;
r = sd_bus_message_append(req, "t", (uint64_t) 0);
if (r < 0)
goto fail;
r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
if (r < 0) {
if (sd_bus_error_has_name(&error, _BUS_ERROR_DNS "NXDOMAIN") ||
!bus_error_shall_fallback(&error))
goto not_found;
goto fail;
}
r = sd_bus_message_enter_container(reply, 'a', "(is)");
if (r < 0)
goto fail;
while ((r = sd_bus_message_read(reply, "(is)", &ifindex, &n)) > 0) {
if (ifindex < 0) {
r = -EINVAL;
goto fail;
}
c++;
ms += ALIGN(strlen(n) + 1);
}
if (r < 0)
goto fail;
r = sd_bus_message_rewind(reply, false);
if (r < 0)
return r;
if (c <= 0)
goto not_found;
ms += ALIGN(len) + /* the address */
2 * sizeof(char*) + /* pointers to the address, plus trailing NULL */
c * sizeof(char*); /* pointers to aliases, plus trailing NULL */
if (buflen < ms) {
*errnop = ERANGE;
*h_errnop = NETDB_INTERNAL;
return NSS_STATUS_TRYAGAIN;
}
/* First, place address */
r_addr = buffer;
memcpy(r_addr, addr, len);
idx = ALIGN(len);
/* Second, place address list */
r_addr_list = buffer + idx;
((char**) r_addr_list)[0] = r_addr;
((char**) r_addr_list)[1] = NULL;
idx += sizeof(char*) * 2;
/* Third, reserve space for the aliases array */
r_aliases = buffer + idx;
idx += sizeof(char*) * c;
/* Fourth, place aliases */
i = 0;
r_name = buffer + idx;
while ((r = sd_bus_message_read(reply, "(is)", &ifindex, &n)) > 0) {
char *p;
size_t l;
l = strlen(n);
p = buffer + idx;
memcpy(p, n, l+1);
if (i > 0)
((char**) r_aliases)[i-1] = p;
i++;
idx += ALIGN(l+1);
}
if (r < 0)
goto fail;
((char**) r_aliases)[c-1] = NULL;
assert(idx == ms);
result->h_name = r_name;
result->h_aliases = (char**) r_aliases;
result->h_addrtype = af;
result->h_length = len;
result->h_addr_list = (char**) r_addr_list;
if (ttlp)
*ttlp = 0;
/* Explicitly reset both *h_errnop and h_errno to work around
* https://bugzilla.redhat.com/show_bug.cgi?id=1125975 */
*h_errnop = NETDB_SUCCESS;
h_errno = 0;
return NSS_STATUS_SUCCESS;
fail:
*errnop = -r;
*h_errnop = NO_RECOVERY;
return ret;
not_found:
*h_errnop = HOST_NOT_FOUND;
return NSS_STATUS_NOTFOUND;
}