bool adb_query(const std::string& service, std::string* result, std::string* error) {
D("adb_query: %s", service.c_str());
int fd = adb_connect(service, error);
if (fd < 0) {
return false;
}
result->clear();
if (!ReadProtocolString(fd, result, error)) {
adb_close(fd);
return false;
}
return true;
}
bool adb_status(int fd, std::string* error) {
char buf[5];
if (!ReadFdExactly(fd, buf, 4)) {
*error = perror_str("protocol fault (couldn't read status)");
return false;
}
if (!memcmp(buf, "OKAY", 4)) {
return true;
}
if (memcmp(buf, "FAIL", 4)) {
*error = android::base::StringPrintf("protocol fault (status %02x %02x %02x %02x?!)",
buf[0], buf[1], buf[2], buf[3]);
return false;
}
ReadProtocolString(fd, error, error);
return false;
}
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// if server was running, check its version to make sure it is not out of date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printf("adb server is out of date.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_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;
}
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;
}
