static int server(sd_bus *bus) {
int r;
bool client1_gone = false, client2_gone = false;
while (!client1_gone || !client2_gone) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
pid_t pid = 0;
const char *label = NULL;
r = sd_bus_process(bus, &m);
if (r < 0) {
log_error_errno(r, "Failed to process requests: %m");
goto fail;
}
if (r == 0) {
r = sd_bus_wait(bus, (uint64_t) -1);
if (r < 0) {
log_error_errno(r, "Failed to wait: %m");
goto fail;
}
continue;
}
if (!m)
continue;
sd_bus_creds_get_pid(sd_bus_message_get_creds(m), &pid);
sd_bus_creds_get_selinux_context(sd_bus_message_get_creds(m), &label);
log_info("Got message! member=%s pid="PID_FMT" label=%s",
strna(sd_bus_message_get_member(m)),
pid,
strna(label));
/* bus_message_dump(m); */
/* sd_bus_message_rewind(m, true); */
if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "LowerCase")) {
const char *hello;
_cleanup_free_ char *lowercase = NULL;
r = sd_bus_message_read(m, "s", &hello);
if (r < 0) {
log_error_errno(r, "Failed to get parameter: %m");
goto fail;
}
lowercase = strdup(hello);
if (!lowercase) {
r = log_oom();
goto fail;
}
ascii_strlower(lowercase);
r = sd_bus_reply_method_return(m, "s", lowercase);
if (r < 0) {
log_error_errno(r, "Failed to send reply: %m");
goto fail;
}
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient1")) {
r = sd_bus_reply_method_return(m, NULL);
if (r < 0) {
log_error_errno(r, "Failed to send reply: %m");
goto fail;
}
client1_gone = true;
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient2")) {
r = sd_bus_reply_method_return(m, NULL);
if (r < 0) {
log_error_errno(r, "Failed to send reply: %m");
goto fail;
}
client2_gone = true;
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Slow")) {
sleep(1);
r = sd_bus_reply_method_return(m, NULL);
if (r < 0) {
log_error_errno(r, "Failed to send reply: %m");
goto fail;
}
} else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "FileDescriptor")) {
int fd;
static const char x = 'X';
r = sd_bus_message_read(m, "h", &fd);
if (r < 0) {
log_error_errno(r, "Failed to get parameter: %m");
goto fail;
}
log_info("Received fd=%d", fd);
if (write(fd, &x, 1) < 0) {
log_error_errno(errno, "Failed to write to fd: %m");
safe_close(fd);
goto fail;
}
r = sd_bus_reply_method_return(m, NULL);
if (r < 0) {
log_error_errno(r, "Failed to send reply: %m");
goto fail;
}
} else if (sd_bus_message_is_method_call(m, NULL, NULL)) {
r = sd_bus_reply_method_error(
m,
&SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method."));
if (r < 0) {
log_error_errno(r, "Failed to send reply: %m");
goto fail;
}
}
}
r = 0;
fail:
if (bus) {
sd_bus_flush(bus);
sd_bus_unref(bus);
}
return r;
}
static void *server(void *p) {
struct context *c = p;
sd_bus *bus = NULL;
sd_id128_t id;
bool quit = false;
int r;
assert_se(sd_id128_randomize(&id) >= 0);
assert_se(sd_bus_new(&bus) >= 0);
assert_se(sd_bus_set_fd(bus, c->fds[0], c->fds[0]) >= 0);
assert_se(sd_bus_set_server(bus, 1, id) >= 0);
assert_se(sd_bus_set_anonymous(bus, c->server_anonymous_auth) >= 0);
assert_se(sd_bus_negotiate_fds(bus, c->server_negotiate_unix_fds) >= 0);
assert_se(sd_bus_start(bus) >= 0);
while (!quit) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
r = sd_bus_process(bus, &m);
if (r < 0) {
log_error("Failed to process requests: %s", strerror(-r));
goto fail;
}
if (r == 0) {
r = sd_bus_wait(bus, (uint64_t) -1);
if (r < 0) {
log_error("Failed to wait: %s", strerror(-r));
goto fail;
}
continue;
}
if (!m)
continue;
log_info("Got message! member=%s", strna(sd_bus_message_get_member(m)));
if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Exit")) {
assert_se((sd_bus_can_send(bus, 'h') >= 1) == (c->server_negotiate_unix_fds && c->client_negotiate_unix_fds));
r = sd_bus_message_new_method_return(m, &reply);
if (r < 0) {
log_error("Failed to allocate return: %s", strerror(-r));
goto fail;
}
quit = true;
} else if (sd_bus_message_is_method_call(m, NULL, NULL)) {
r = sd_bus_message_new_method_error(
m,
&reply,
&SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method."));
if (r < 0) {
log_error("Failed to allocate return: %s", strerror(-r));
goto fail;
}
}
if (reply) {
r = sd_bus_send(bus, reply, NULL);
if (r < 0) {
log_error("Failed to send reply: %s", strerror(-r));
goto fail;
}
}
}
r = 0;
fail:
if (bus) {
sd_bus_flush(bus);
sd_bus_unref(bus);
}
return INT_TO_PTR(r);
}
int main(int argc, char *argv[]) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
const sd_bus_error const_error = SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "const error");
const sd_bus_error temporarily_const_error = {
.name = SD_BUS_ERROR_ACCESS_DENIED,
.message = "oh! no",
._need_free = -1
};
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_set(&error, SD_BUS_ERROR_NOT_SUPPORTED, "xxx") == -ENOTSUP);
assert_se(streq(error.name, SD_BUS_ERROR_NOT_SUPPORTED));
assert_se(streq(error.message, "xxx"));
assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_NOT_SUPPORTED));
assert_se(sd_bus_error_get_errno(&error) == ENOTSUP);
assert_se(sd_bus_error_is_set(&error));
sd_bus_error_free(&error);
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
assert_se(streq(error.message, "yyy -1"));
assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
assert_se(sd_bus_error_get_errno(&error) == ENOENT);
assert_se(sd_bus_error_is_set(&error));
assert_se(!sd_bus_error_is_set(&second));
assert_se(second._need_free == 0);
assert_se(error._need_free > 0);
assert_se(sd_bus_error_copy(&second, &error) == -ENOENT);
assert_se(second._need_free > 0);
assert_se(streq(error.name, second.name));
assert_se(streq(error.message, second.message));
assert_se(sd_bus_error_get_errno(&second) == ENOENT);
assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_NOT_FOUND));
assert_se(sd_bus_error_is_set(&second));
sd_bus_error_free(&error);
sd_bus_error_free(&second);
assert_se(!sd_bus_error_is_set(&second));
assert_se(const_error._need_free == 0);
assert_se(sd_bus_error_copy(&second, &const_error) == -EEXIST);
assert_se(second._need_free == 0);
assert_se(streq(const_error.name, second.name));
assert_se(streq(const_error.message, second.message));
assert_se(sd_bus_error_get_errno(&second) == EEXIST);
assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_EXISTS));
assert_se(sd_bus_error_is_set(&second));
sd_bus_error_free(&second);
assert_se(!sd_bus_error_is_set(&second));
assert_se(temporarily_const_error._need_free < 0);
assert_se(sd_bus_error_copy(&second, &temporarily_const_error) == -EACCES);
assert_se(second._need_free > 0);
assert_se(streq(temporarily_const_error.name, second.name));
assert_se(streq(temporarily_const_error.message, second.message));
assert_se(sd_bus_error_get_errno(&second) == EACCES);
assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_ACCESS_DENIED));
assert_se(sd_bus_error_is_set(&second));
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_set_const(&error, "System.Error.EUCLEAN", "Hallo") == -EUCLEAN);
assert_se(streq(error.name, "System.Error.EUCLEAN"));
assert_se(streq(error.message, "Hallo"));
assert_se(sd_bus_error_has_name(&error, "System.Error.EUCLEAN"));
assert_se(sd_bus_error_get_errno(&error) == EUCLEAN);
assert_se(sd_bus_error_is_set(&error));
sd_bus_error_free(&error);
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_set_errno(&error, EBUSY) == -EBUSY);
assert_se(streq(error.name, "System.Error.EBUSY"));
assert_se(streq(error.message, strerror(EBUSY)));
assert_se(sd_bus_error_has_name(&error, "System.Error.EBUSY"));
assert_se(sd_bus_error_get_errno(&error) == EBUSY);
assert_se(sd_bus_error_is_set(&error));
sd_bus_error_free(&error);
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_set_errnof(&error, EIO, "Waldi %c", 'X') == -EIO);
assert_se(streq(error.name, SD_BUS_ERROR_IO_ERROR));
assert_se(streq(error.message, "Waldi X"));
assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
assert_se(sd_bus_error_get_errno(&error) == EIO);
assert_se(sd_bus_error_is_set(&error));
return 0;
}
static void test_error(void) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
const sd_bus_error const_error = SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "const error");
const sd_bus_error temporarily_const_error = {
.name = SD_BUS_ERROR_ACCESS_DENIED,
.message = "oh! no",
._need_free = -1
};
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_set(&error, SD_BUS_ERROR_NOT_SUPPORTED, "xxx") == -EOPNOTSUPP);
assert_se(streq(error.name, SD_BUS_ERROR_NOT_SUPPORTED));
assert_se(streq(error.message, "xxx"));
assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_NOT_SUPPORTED));
assert_se(sd_bus_error_get_errno(&error) == EOPNOTSUPP);
assert_se(sd_bus_error_is_set(&error));
sd_bus_error_free(&error);
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
assert_se(streq(error.message, "yyy -1"));
assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
assert_se(sd_bus_error_get_errno(&error) == ENOENT);
assert_se(sd_bus_error_is_set(&error));
assert_se(!sd_bus_error_is_set(&second));
assert_se(second._need_free == 0);
assert_se(error._need_free > 0);
assert_se(sd_bus_error_copy(&second, &error) == -ENOENT);
assert_se(second._need_free > 0);
assert_se(streq(error.name, second.name));
assert_se(streq(error.message, second.message));
assert_se(sd_bus_error_get_errno(&second) == ENOENT);
assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_NOT_FOUND));
assert_se(sd_bus_error_is_set(&second));
sd_bus_error_free(&error);
sd_bus_error_free(&second);
assert_se(!sd_bus_error_is_set(&second));
assert_se(const_error._need_free == 0);
assert_se(sd_bus_error_copy(&second, &const_error) == -EEXIST);
assert_se(second._need_free == 0);
assert_se(streq(const_error.name, second.name));
assert_se(streq(const_error.message, second.message));
assert_se(sd_bus_error_get_errno(&second) == EEXIST);
assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_EXISTS));
assert_se(sd_bus_error_is_set(&second));
sd_bus_error_free(&second);
assert_se(!sd_bus_error_is_set(&second));
assert_se(temporarily_const_error._need_free < 0);
assert_se(sd_bus_error_copy(&second, &temporarily_const_error) == -EACCES);
assert_se(second._need_free > 0);
assert_se(streq(temporarily_const_error.name, second.name));
assert_se(streq(temporarily_const_error.message, second.message));
assert_se(sd_bus_error_get_errno(&second) == EACCES);
assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_ACCESS_DENIED));
assert_se(sd_bus_error_is_set(&second));
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_set_const(&error, "System.Error.EUCLEAN", "Hallo") == -EUCLEAN);
assert_se(streq(error.name, "System.Error.EUCLEAN"));
assert_se(streq(error.message, "Hallo"));
assert_se(sd_bus_error_has_name(&error, "System.Error.EUCLEAN"));
assert_se(sd_bus_error_get_errno(&error) == EUCLEAN);
assert_se(sd_bus_error_is_set(&error));
sd_bus_error_free(&error);
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_set_errno(&error, EBUSY) == -EBUSY);
assert_se(streq(error.name, "System.Error.EBUSY"));
assert_se(streq(error.message, strerror(EBUSY)));
assert_se(sd_bus_error_has_name(&error, "System.Error.EBUSY"));
assert_se(sd_bus_error_get_errno(&error) == EBUSY);
assert_se(sd_bus_error_is_set(&error));
sd_bus_error_free(&error);
assert_se(!sd_bus_error_is_set(&error));
assert_se(sd_bus_error_set_errnof(&error, EIO, "Waldi %c", 'X') == -EIO);
assert_se(streq(error.name, SD_BUS_ERROR_IO_ERROR));
assert_se(streq(error.message, "Waldi X"));
assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
assert_se(sd_bus_error_get_errno(&error) == EIO);
assert_se(sd_bus_error_is_set(&error));
}
extern const sd_bus_error_map __start_BUS_ERROR_MAP[];
extern const sd_bus_error_map __stop_BUS_ERROR_MAP[];
static void dump_mapping_table(void) {
const sd_bus_error_map *m;
printf("----- errno mappings ------\n");
m = __start_BUS_ERROR_MAP;
while (m < __stop_BUS_ERROR_MAP) {
if (m->code == BUS_ERROR_MAP_END_MARKER) {
m = ALIGN8_PTR(m+1);
continue;
}
printf("%s -> %i/%s\n", strna(m->name), m->code, strna(errno_to_name(m->code)));
m ++;
}
printf("---------------------------\n");
}
static void test_errno_mapping_standard(void) {
assert_se(sd_bus_error_set(NULL, "System.Error.EUCLEAN", NULL) == -EUCLEAN);
assert_se(sd_bus_error_set(NULL, "System.Error.EBUSY", NULL) == -EBUSY);
assert_se(sd_bus_error_set(NULL, "System.Error.EINVAL", NULL) == -EINVAL);
assert_se(sd_bus_error_set(NULL, "System.Error.WHATSIT", NULL) == -EIO);
}
