static int get_manifest_channel_locked(struct NaClSrpcChannel **result) {
int status;
int manifest;
int manifest_conn;
if (manifest_channel_initialized) {
*result = &manifest_channel;
return 0;
}
*result = NULL;
status = irt_nameservice_lookup("ManifestNameService", O_RDWR, &manifest);
if (NACL_NAME_SERVICE_SUCCESS != status) {
print_error("ManifestNameService lookup failed\n");
return EIO;
}
if (-1 == manifest) {
print_error("Manifest descriptor is invalid\n");
return EIO;
}
manifest_conn = imc_connect(manifest);
close(manifest);
if (-1 == manifest_conn) {
print_error("Can't connect to manifest service\n");
return EIO;
}
if (!NaClSrpcClientCtor(&manifest_channel, manifest_conn)) {
print_error("Can't create manifest srpc channel\n");
return EIO;
}
*result = &manifest_channel;
manifest_channel_initialized = 1;
return 0;
}
static int prepare_secure_random(void) {
if (secure_random_fd == -1) {
int fd;
int status = irt_nameservice_lookup("SecureRandom", O_RDONLY, &fd);
if (status != NACL_NAME_SERVICE_SUCCESS) {
return EIO;
}
if (!__sync_bool_compare_and_swap(&secure_random_fd, -1, fd)) {
/*
* We raced with another thread. It already installed an fd.
*/
NACL_SYSCALL(close)(fd);
}
}
return 0;
}
