Exemplo n.º 1
0
void*
adb_server_register_guest(void* opaque, AdbGuestRoutines* callbacks)
{
    if (_adb_server_initialized) {
        AdbHost* adb_host;

        /* Create and initialize ADB guest descriptor. */
        AdbGuest* const adb_guest = _adb_guest_new(&_adb_server);
        adb_guest->opaque = opaque;
        adb_guest->callbacks = callbacks;

        /* Lets see if there is a pending ADB host for the new guest. */
        adb_host = (AdbHost*)alist_remove_head(&_adb_server.pending_hosts);
        if (adb_host != NULL) {
            /* Tie up ADB host with the ADB guest. */
            alist_insert_tail(&_adb_server.adb_guests, &adb_guest->list_entry);
            alist_insert_tail(&_adb_server.adb_hosts, &adb_host->list_entry);
            _adb_connect(adb_host, adb_guest);
        } else {
            /* Host is not available. Pend this guest. */
            D("Pend ADB guest %p(o=%p)", adb_guest, adb_guest->opaque);
            alist_insert_tail(&_adb_server.pending_guests, &adb_guest->list_entry);
        }

        return adb_guest;
    } else {
        D("%s is called on an uninitialized ADB server.", __FUNCTION__);
        return NULL;
    }
}
Exemplo n.º 2
0
static int _do_sync_push(const char *lpath, const char *rpath, int show_progress) {
    struct stat st;
    unsigned mode;
    int fd;

    if((fd = _adb_connect("sync:")) < 0) {
        return 1;
    }

    if(stat(lpath, &st)) {
        sync_quit(fd);
        return 2;
    }

    if(S_ISDIR(st.st_mode)) {
        if(copy_local_dir_remote(fd, lpath, rpath, 0, 0)) {
            return 3;
        } else {
            sync_quit(fd);
        }
    } else {
        if(sync_readmode(fd, rpath, &mode)) {
            return 4;
        }
        if((mode != 0) && S_ISDIR(mode)) {
            /* if we're copying a local file to a remote directory,
            ** we *really* want to copy to remotedir + "/" + localfilename
            */
            const char *name = strrchr(lpath, '/');
            if(name == 0) {
                name = lpath;
            } else {
                name++;
            }
            int  tmplen = strlen(name) + strlen(rpath) + 2;
            char *tmp = malloc(strlen(name) + strlen(rpath) + 2);
            if(tmp == 0) return 1;
            snprintf(tmp, tmplen, "%s/%s", rpath, name);
            rpath = tmp;
        }
        if(sync_send(fd, lpath, rpath, st.st_mtime, st.st_mode, show_progress)) {
            return 5;
        } else {
            sync_quit(fd);
            return 0;
        }
    }

    return 0;
}
Exemplo n.º 3
0
/* I/O callback on ADB server socket. */
static void
_on_server_socket_io(void* opaque, int fd, unsigned events)
{
    AdbHost* adb_host;
    AdbGuest* adb_guest;
    AdbServer* adb_srv = (AdbServer*)opaque;
    assert(adb_srv->so == fd);

    /* Since this is a server socket, we only expect a connection I/O here. */
    if ((events & LOOP_IO_READ) == 0) {
        D("Unexpected write I/O on ADB server socket");
        return;
    }

    /* Create AdbHost instance for the new host connection. */
    adb_host = _adb_host_new(adb_srv);

    /* Accept the connection. */
    adb_host->host_so = socket_accept(fd, &adb_srv->socket_address);
    if (adb_host->host_so < 0) {
        D("Unable to accept ADB connection: %s", strerror(errno));
        _adb_host_free(adb_host);
        return;
    }

    /* Prepare for I/O on the host connection socket. */
    loopIo_init(adb_host->io, adb_srv->looper, adb_host->host_so,
                _on_adb_host_io, adb_host);

    /* Lets see if there is an ADB guest waiting for a host connection. */
    adb_guest = (AdbGuest*)alist_remove_head(&adb_srv->pending_guests);
    if (adb_guest != NULL) {
        /* Tie up ADB host with the ADB guest. */
        alist_insert_tail(&adb_srv->adb_guests, &adb_guest->list_entry);
        alist_insert_tail(&adb_srv->adb_hosts, &adb_host->list_entry);
        _adb_connect(adb_host, adb_guest);
    } else {
        /* Pend this connection. */
        D("Pend ADB host %p(so=%d)", adb_host, adb_host->host_so);
        alist_insert_tail(&adb_srv->pending_hosts, &adb_host->list_entry);
    }

    /* Enable I/O on the host socket. */
    loopIo_wantRead(adb_host->io);
}
Exemplo n.º 4
0
static char *_send_shellcommand(transport_type transport, char* serial, char* cmd) {
    int fd;

    if((fd=_adb_connect(cmd))<0) {
        return NULL;
    }

    char buf[4096<<2];
    char *ptr=buf;
    int left=sizeof(buf);
    int len = 0;
    while(left>0) {
        int n = adb_read(fd, ptr, left);
        if(n>0) {
            ptr += n;
            left -= n;
            len += n;
        } else if(n<=0) {
            break;
        }
    }
    adb_close(fd);
    return strndup(buf, len);
}
Exemplo n.º 5
0
int adb_connect(const char *service)
{
    // first query the adb server's version
    int fd = _adb_connect("host:version");

    D("adb_connect: service %s\n", service);
    if(fd == -2 && __adb_server_name) {
        fprintf(stderr,"** Cannot start server on remote host\n");
        return fd;
    } else if(fd == -2) {
        fprintf(stdout,"* daemon not running. starting it now on port %d *\n",
                __adb_server_port);
    start_server:
        if(launch_server(__adb_server_port)) {
            fprintf(stderr,"* failed to start daemon *\n");
            return -1;
        } else {
            fprintf(stdout,"* daemon started successfully *\n");
        }
        /* give the server some time to start properly and detect devices */
        adb_sleep_ms(3000);
        // fall through to _adb_connect
    } else {
        // if server was running, check its version to make sure it is not out of date
        char buf[100];
        size_t n;
        int version = ADB_SERVER_VERSION - 1;

        // if we have a file descriptor, then parse version result
        if(fd >= 0) {
            if(!ReadFdExactly(fd, buf, 4)) goto error;

            buf[4] = 0;
            n = strtoul(buf, 0, 16);
            if(n > sizeof(buf)) goto error;
            if(!ReadFdExactly(fd, buf, n)) goto error;
            adb_close(fd);

            if (sscanf(buf, "%04x", &version) != 1) goto error;
        } else {
            // if fd is -1, then check for "unknown host service",
            // which would indicate a version of adb that does not support the version command
            if (strcmp(__adb_error, "unknown host service") != 0)
                return fd;
        }

        if(version != ADB_SERVER_VERSION) {
            printf("adb server is out of date.  killing...\n");
            fd = _adb_connect("host:kill");
            adb_close(fd);

            /* XXX can we better detect its death? */
            adb_sleep_ms(2000);
            goto start_server;
        }
    }

    // if the command is start-server, we are done.
    if (!strcmp(service, "host:start-server"))
        return 0;

    fd = _adb_connect(service);
    if(fd == -1) {
        D("_adb_connect error: %s", __adb_error);
    } else if(fd == -2) {
        fprintf(stderr,"** daemon still not running\n");
    }
    D("adb_connect: return fd %d\n", fd);

    return fd;
error:
    adb_close(fd);
    return -1;
}
int adb_connect(const std::string& service, std::string* error) {
    // first query the adb server's version
    int fd = _adb_connect("host:version", error);

    D("adb_connect: service %s", service.c_str());
    if (fd == -2 && __adb_server_name) {
        fprintf(stderr,"** Cannot start server on remote host\n");
        // error is the original network connection error
        return fd;
    } else if (fd == -2) {
        fprintf(stdout,"* daemon not running. starting it now on port %d *\n",
                __adb_server_port);
    start_server:
        if (launch_server(__adb_server_port)) {
            fprintf(stderr,"* failed to start daemon *\n");
            // launch_server() has already printed detailed error info, so just
            // return a generic error string about the overall adb_connect()
            // that the caller requested.
            *error = "cannot connect to daemon";
            return -1;
        } else {
            fprintf(stdout,"* daemon started successfully *\n");
        }
        /* give the server some time to start properly and detect devices */
        adb_sleep_ms(3000);
        // fall through to _adb_connect
    } else {
        // if server was running, check its version to make sure it is not out of date
        int version = ADB_SERVER_VERSION - 1;

        // if we have a file descriptor, then parse version result
        if (fd >= 0) {
            std::string version_string;
            if (!ReadProtocolString(fd, &version_string, error)) {
                goto error;
            }

            adb_close(fd);

            if (sscanf(&version_string[0], "%04x", &version) != 1) {
                *error = android::base::StringPrintf(
                        "cannot parse version string: %s",
                        version_string.c_str());
                return -1;
            }
        } else {
            // if fd is -1, then check for "unknown host service",
            // which would indicate a version of adb that does not support the
            // version command, in which case we should fall-through to kill it.
            if (*error != "unknown host service") {
                return fd;
            }
        }

        if (version != ADB_SERVER_VERSION) {
            printf("adb server is out of date.  killing...\n");
            fd = _adb_connect("host:kill", error);
            if (fd >= 0) {
                adb_close(fd);
            } else {
                // If we couldn't connect to the server or had some other error,
                // report it, but still try to start the server.
                fprintf(stderr, "error: %s\n", error->c_str());
            }

            /* XXX can we better detect its death? */
            adb_sleep_ms(2000);
            goto start_server;
        }
    }

    // if the command is start-server, we are done.
    if (service == "host:start-server") {
        return 0;
    }

    fd = _adb_connect(service, error);
    if (fd == -1) {
        D("_adb_connect error: %s", error->c_str());
    } else if(fd == -2) {
        fprintf(stderr,"** daemon still not running\n");
    }
    D("adb_connect: return fd %d", fd);

    return fd;
error:
    adb_close(fd);
    return -1;
}
int adb_commandline(int argc, char **argv)
{
    char buf[4096];
    int no_daemon = 0;
    int is_daemon = 0;
    int persist = 0;
    int r;
    int quote;
    transport_type ttype = kTransportAny;
    char* serial = NULL;

        /* If defined, this should be an absolute path to
         * the directory containing all of the various system images
         * for a particular product.  If not defined, and the adb
         * command requires this information, then the user must
         * specify the path using "-p".
         */
    gProductOutPath = getenv("ANDROID_PRODUCT_OUT");
    if (gProductOutPath == NULL || gProductOutPath[0] == '\0') {
        gProductOutPath = NULL;
    }
    // TODO: also try TARGET_PRODUCT/TARGET_DEVICE as a hint

    serial = getenv("ANDROID_SERIAL");

        /* modifiers and flags */
    while(argc > 0) {
        if(!strcmp(argv[0],"nodaemon")) {
            no_daemon = 1;
        } else if (!strcmp(argv[0], "fork-server")) {
            /* this is a special flag used only when the ADB client launches the ADB Server */
            is_daemon = 1;
        } else if(!strcmp(argv[0],"persist")) {
            persist = 1;
        } else if(!strncmp(argv[0], "-p", 2)) {
            const char *product = NULL;
            if (argv[0][2] == '\0') {
                if (argc < 2) return usage();
                product = argv[1];
                argc--;
                argv++;
            } else {
                product = argv[1] + 2;
            }
            gProductOutPath = find_product_out_path(product);
            if (gProductOutPath == NULL) {
                fprintf(stderr, "adb: could not resolve \"-p %s\"\n",
                        product);
                return usage();
            }
        } else if (argv[0][0]=='-' && argv[0][1]=='s') {
            if (isdigit(argv[0][2])) {
                serial = argv[0] + 2;
            } else {
                if(argc < 2) return usage();
                serial = argv[1];
                argc--;
                argv++;
            }
        } else if (!strcmp(argv[0],"-d")) {
            ttype = kTransportUsb;
        } else if (!strcmp(argv[0],"-e")) {
            ttype = kTransportLocal;
        } else {
                /* out of recognized modifiers and flags */
            break;
        }
        argc--;
        argv++;
    }

    adb_set_transport(ttype, serial);

    if ((argc > 0) && (!strcmp(argv[0],"server"))) {
        if (no_daemon || is_daemon) {
            r = adb_main(is_daemon);
        } else {
            r = launch_server();
        }
        if(r) {
            fprintf(stderr,"* could not start server *\n");
        }
        return r;
    }

top:
    if(argc == 0) {
        return usage();
    }

    /* adb_connect() commands */

    if(!strcmp(argv[0], "devices")) {
        char *tmp;
        snprintf(buf, sizeof buf, "host:%s", argv[0]);
        tmp = adb_query(buf);
        if(tmp) {
            printf("List of devices attached \n");
            printf("%s\n", tmp);
            return 0;
        } else {
            return 1;
        }
    }

    if(!strcmp(argv[0], "connect") || !strcmp(argv[0], "disconnect")) {
        char *tmp;
        if (argc != 2) {
            fprintf(stderr, "Usage: adb %s <host>:<port>\n", argv[0]);
            return 1;
        }
        snprintf(buf, sizeof buf, "host:%s:%s", argv[0], argv[1]);
        tmp = adb_query(buf);
        if(tmp) {
            printf("%s\n", tmp);
            return 0;
        } else {
            return 1;
        }
    }

    if (!strcmp(argv[0], "emu")) {
        return adb_send_emulator_command(argc, argv);
    }

    if(!strcmp(argv[0], "shell")) {
        int r;
        int fd;

        if(argc < 2) {
            return interactive_shell();
        }

        snprintf(buf, sizeof buf, "shell:%s", argv[1]);
        argc -= 2;
        argv += 2;
        while(argc-- > 0) {
            strcat(buf, " ");

            /* quote empty strings and strings with spaces */
            quote = (**argv == 0 || strchr(*argv, ' '));
            if (quote)
            	strcat(buf, "\"");
            strcat(buf, *argv++);
            if (quote)
            	strcat(buf, "\"");
        }

        for(;;) {
            fd = adb_connect(buf);
            if(fd >= 0) {
                read_and_dump(fd);
                adb_close(fd);
                r = 0;
            } else {
                fprintf(stderr,"error: %s\n", adb_error());
                r = -1;
            }

            if(persist) {
                fprintf(stderr,"\n- waiting for device -\n");
                adb_sleep_ms(1000);
                do_cmd(ttype, serial, "wait-for-device", 0);
            } else {
                return r;
            }
        }
    }

    if(!strcmp(argv[0], "kill-server")) {
        int fd;
        fd = _adb_connect("host:kill");
        if(fd == -1) {
            fprintf(stderr,"* server not running *\n");
            return 1;
        }
        return 0;
    }

    if(!strcmp(argv[0], "remount") || !strcmp(argv[0], "reboot")
            || !strcmp(argv[0], "reboot-bootloader")
            || !strcmp(argv[0], "tcpip") || !strcmp(argv[0], "usb")
            || !strcmp(argv[0], "root")) {
        char command[100];
        if (!strcmp(argv[0], "reboot-bootloader"))
            snprintf(command, sizeof(command), "reboot:bootloader");
        else if (argc > 1)
            snprintf(command, sizeof(command), "%s:%s", argv[0], argv[1]);
        else
            snprintf(command, sizeof(command), "%s:", argv[0]);
        int fd = adb_connect(command);
        if(fd >= 0) {
            read_and_dump(fd);
            adb_close(fd);
            return 0;
        }
        fprintf(stderr,"error: %s\n", adb_error());
        return 1;
    }

    if(!strcmp(argv[0], "bugreport")) {
        if (argc != 1) return usage();
        do_cmd(ttype, serial, "shell", "bugreport", 0);
        return 0;
    }

    /* adb_command() wrapper commands */

    if(!strncmp(argv[0], "wait-for-", strlen("wait-for-"))) {
        char* service = argv[0];
        if (!strncmp(service, "wait-for-device", strlen("wait-for-device"))) {
            if (ttype == kTransportUsb) {
                service = "wait-for-usb";
            } else if (ttype == kTransportLocal) {
                service = "wait-for-local";
            } else {
                service = "wait-for-any";
            }
        }

        format_host_command(buf, sizeof buf, service, ttype, serial);

        if (adb_command(buf)) {
            D("failure: %s *\n",adb_error());
            fprintf(stderr,"error: %s\n", adb_error());
            return 1;
        }

        /* Allow a command to be run after wait-for-device,
            * e.g. 'adb wait-for-device shell'.
            */
        if(argc > 1) {
            argc--;
            argv++;
            goto top;
        }
        return 0;
    }

    if(!strcmp(argv[0], "forward")) {
        if(argc != 3) return usage();
        if (serial) {
            snprintf(buf, sizeof buf, "host-serial:%s:forward:%s;%s",serial, argv[1], argv[2]);
        } else if (ttype == kTransportUsb) {
            snprintf(buf, sizeof buf, "host-usb:forward:%s;%s", argv[1], argv[2]);
        } else if (ttype == kTransportLocal) {
            snprintf(buf, sizeof buf, "host-local:forward:%s;%s", argv[1], argv[2]);
        } else {
            snprintf(buf, sizeof buf, "host:forward:%s;%s", argv[1], argv[2]);
        }
        if(adb_command(buf)) {
            fprintf(stderr,"error: %s\n", adb_error());
            return 1;
        }
        return 0;
    }

    /* do_sync_*() commands */

    if(!strcmp(argv[0], "ls")) {
        if(argc != 2) return usage();
        return do_sync_ls(argv[1]);
    }

    if(!strcmp(argv[0], "push")) {
        if(argc != 3) return usage();
        return do_sync_push(argv[1], argv[2], 0 /* no verify APK */);
    }

    if(!strcmp(argv[0], "pull")) {
        if (argc == 2) {
            return do_sync_pull(argv[1], ".");
        } else if (argc == 3) {
            return do_sync_pull(argv[1], argv[2]);
        } else {
            return usage();
        }
    }

    if(!strcmp(argv[0], "install")) {
        if (argc < 2) return usage();
        return install_app(ttype, serial, argc, argv);
    }

    if(!strcmp(argv[0], "uninstall")) {
        if (argc < 2) return usage();
        return uninstall_app(ttype, serial, argc, argv);
    }

    if(!strcmp(argv[0], "sync")) {
        char *srcarg, *android_srcpath, *data_srcpath;
        int listonly = 0;

        int ret;
        if(argc < 2) {
            /* No local path was specified. */
            srcarg = NULL;
        } else if (argc >= 2 && strcmp(argv[1], "-l") == 0) {
            listonly = 1;
            if (argc == 3) {
                srcarg = argv[2];
            } else {
                srcarg = NULL;
            }
        } else if(argc == 2) {
            /* A local path or "android"/"data" arg was specified. */
            srcarg = argv[1];
        } else {
            return usage();
        }
        ret = find_sync_dirs(srcarg, &android_srcpath, &data_srcpath);
        if(ret != 0) return usage();

        if(android_srcpath != NULL)
            ret = do_sync_sync(android_srcpath, "/system", listonly);
        if(ret == 0 && data_srcpath != NULL)
            ret = do_sync_sync(data_srcpath, "/data", listonly);

        free(android_srcpath);
        free(data_srcpath);
        return ret;
    }

    /* passthrough commands */

    if(!strcmp(argv[0],"get-state") ||
        !strcmp(argv[0],"get-serialno"))
    {
        char *tmp;

        format_host_command(buf, sizeof buf, argv[0], ttype, serial);
        tmp = adb_query(buf);
        if(tmp) {
            printf("%s\n", tmp);
            return 0;
        } else {
            return 1;
        }
    }

    /* other commands */

    if(!strcmp(argv[0],"status-window")) {
        status_window(ttype, serial);
        return 0;
    }

    if(!strcmp(argv[0],"logcat") || !strcmp(argv[0],"lolcat")) {
        return logcat(ttype, serial, argc, argv);
    }

    if(!strcmp(argv[0],"ppp")) {
        return ppp(argc, argv);
    }

    if (!strcmp(argv[0], "start-server")) {
        return adb_connect("host:start-server");
    }

    if (!strcmp(argv[0], "jdwp")) {
        int  fd = adb_connect("jdwp");
        if (fd >= 0) {
            read_and_dump(fd);
            adb_close(fd);
            return 0;
        } else {
            fprintf(stderr, "error: %s\n", adb_error());
            return -1;
        }
    }

    /* "adb /?" is a common idiom under Windows */
    if(!strcmp(argv[0], "help") || !strcmp(argv[0], "/?")) {
        help();
        return 0;
    }

    if(!strcmp(argv[0], "version")) {
        version(stdout);
        return 0;
    }

    usage();
    return 1;
}
Exemplo n.º 8
0
int adb_connect(const std::string& service, std::string* error) {
    // first query the adb server's version
    int fd = _adb_connect("host:version", error);

    D("adb_connect: service %s", service.c_str());
    if (fd == -2 && !is_local_socket_spec(__adb_server_socket_spec)) {
        fprintf(stderr,"** Cannot start server on remote host\n");
        // error is the original network connection error
        return fd;
    } else if (fd == -2) {
        fprintf(stdout, "* daemon not running. starting it now at %s *\n", __adb_server_socket_spec);
    start_server:
        if (launch_server(__adb_server_socket_spec)) {
            fprintf(stderr,"* failed to start daemon *\n");
            // launch_server() has already printed detailed error info, so just
            // return a generic error string about the overall adb_connect()
            // that the caller requested.
            *error = "cannot connect to daemon";
            return -1;
        } else {
            fprintf(stdout,"* daemon started successfully *\n");
        }
        // Give the server some time to start properly and detect devices.
        std::this_thread::sleep_for(3s);
        // fall through to _adb_connect
    } else {
        // If a server is already running, check its version matches.
        int version = ADB_SERVER_VERSION - 1;

        // If we have a file descriptor, then parse version result.
        if (fd >= 0) {
            std::string version_string;
            if (!ReadProtocolString(fd, &version_string, error)) {
                adb_close(fd);
                return -1;
            }

            ReadOrderlyShutdown(fd);
            adb_close(fd);

            if (sscanf(&version_string[0], "%04x", &version) != 1) {
                *error = android::base::StringPrintf("cannot parse version string: %s",
                                                     version_string.c_str());
                return -1;
            }
        } else {
            // If fd is -1 check for "unknown host service" which would
            // indicate a version of adb that does not support the
            // version command, in which case we should fall-through to kill it.
            if (*error != "unknown host service") {
                return fd;
            }
        }

        if (version != ADB_SERVER_VERSION) {
            printf("adb server version (%d) doesn't match this client (%d); killing...\n",
                   version, ADB_SERVER_VERSION);
            fd = _adb_connect("host:kill", error);
            if (fd >= 0) {
                ReadOrderlyShutdown(fd);
                adb_close(fd);
            } else {
                // If we couldn't connect to the server or had some other error,
                // report it, but still try to start the server.
                fprintf(stderr, "error: %s\n", error->c_str());
            }

            /* XXX can we better detect its death? */
            std::this_thread::sleep_for(2s);
            goto start_server;
        }
    }

    // if the command is start-server, we are done.
    if (service == "host:start-server") {
        return 0;
    }

    fd = _adb_connect(service, error);
    if (fd == -1) {
        D("_adb_connect error: %s", error->c_str());
    } else if(fd == -2) {
        fprintf(stderr,"** daemon still not running\n");
    }
    D("adb_connect: return fd %d", fd);

    return fd;
}
Exemplo n.º 9
0
 // returns a file descriptor to use with read_fd
 // if < 0, then FAIL
 DLL_EXPORT int connect_service(const char * service) {
   return _adb_connect(service);
 }
Exemplo n.º 10
0
int adb_connect(const std::string& service, std::string* error) {
    // first query the adb server's version
    int fd = _adb_connect("host:version", error);

    D("adb_connect: service %s\n", service.c_str());
    if (fd == -2 && __adb_server_name) {
        fprintf(stderr,"** Cannot start server on remote host\n");
        return fd;
    } else if (fd == -2) {
        fprintf(stdout,"* daemon not running. starting it now on port %d *\n",
                __adb_server_port);
    start_server:
        if (launch_server(__adb_server_port)) {
            fprintf(stderr,"* failed to start daemon *\n");
            return -1;
        } else {
            fprintf(stdout,"* daemon started successfully *\n");
        }
        /* give the server some time to start properly and detect devices */
        adb_sleep_ms(3000);
        // fall through to _adb_connect
    } else {
        // if server was running, check its version to make sure it is not out of date
        int version = ADB_SERVER_VERSION - 1;

        // if we have a file descriptor, then parse version result
        if (fd >= 0) {
            std::string version_string;
            if (!ReadProtocolString(fd, &version_string, error)) {
                goto error;
            }

            adb_close(fd);

            if (sscanf(&version_string[0], "%04x", &version) != 1) {
                goto error;
            }
        } else {
            // if fd is -1, then check for "unknown host service",
            // which would indicate a version of adb that does not support the version command
            if (*error == "unknown host service") {
                return fd;
            }
        }

        if (version != ADB_SERVER_VERSION) {
            printf("adb server is out of date.  killing...\n");
            fd = _adb_connect("host:kill", error);
            adb_close(fd);

            /* XXX can we better detect its death? */
            adb_sleep_ms(2000);
            goto start_server;
        }
    }

    // if the command is start-server, we are done.
    if (service == "host:start-server") {
        return 0;
    }

    fd = _adb_connect(service, error);
    if (fd == -1) {
        D("_adb_connect error: %s\n", error->c_str());
    } else if(fd == -2) {
        fprintf(stderr,"** daemon still not running\n");
    }
    D("adb_connect: return fd %d\n", fd);

    return fd;
error:
    adb_close(fd);
    return -1;
}