static bool reboot_service_impl(int fd, const char* arg) {
const char* reboot_arg = arg;
bool auto_reboot = false;
if (strcmp(reboot_arg, "sideload-auto-reboot") == 0) {
auto_reboot = true;
reboot_arg = "sideload";
}
// It reboots into sideload mode by setting "--sideload" or "--sideload_auto_reboot"
// in the command file.
if (strcmp(reboot_arg, "sideload") == 0) {
if (getuid() != 0) {
WriteFdExactly(fd, "'adb root' is required for 'adb reboot sideload'.\n");
return false;
}
const std::vector<std::string> options = {
auto_reboot ? "--sideload_auto_reboot" : "--sideload"
};
std::string err;
if (!write_bootloader_message(options, &err)) {
D("Failed to set bootloader message: %s", err.c_str());
return false;
}
reboot_arg = "recovery";
}
sync();
std::string reboot_string = android::base::StringPrintf("reboot,%s", reboot_arg);
if (!android::base::SetProperty(ANDROID_RB_PROPERTY, reboot_string)) {
WriteFdFmt(fd, "reboot (%s) failed\n", reboot_string.c_str());
return false;
}
return true;
}
static int write_data_link(int fd, const char *path, syncsendbuf *sbuf)
{
int len, ret;
len = readlink(path, sbuf->data, SYNC_DATA_MAX-1);
if(len < 0) {
fprintf(stderr, "error reading link '%s': %s\n", path, strerror(errno));
return -1;
}
sbuf->data[len] = '\0';
sbuf->size = htoll(len + 1);
sbuf->id = ID_DATA;
ret = !WriteFdExactly(fd, sbuf, sizeof(unsigned) * 2 + len + 1);
if(ret)
return -1;
total_bytes += len + 1;
return 0;
}
TEST_F(LocalSocketTest, smoke) {
const size_t PIPE_COUNT = 100;
const size_t MESSAGE_LOOP_COUNT = 100;
const std::string MESSAGE = "socket_test";
int fd_pair1[2];
int fd_pair2[2];
ASSERT_EQ(0, adb_socketpair(fd_pair1));
ASSERT_EQ(0, adb_socketpair(fd_pair2));
pthread_t thread;
ThreadArg thread_arg;
thread_arg.first_read_fd = fd_pair1[0];
thread_arg.last_write_fd = fd_pair2[1];
thread_arg.middle_pipe_count = PIPE_COUNT;
int writer = fd_pair1[1];
int reader = fd_pair2[0];
ASSERT_EQ(0, pthread_create(&thread, nullptr,
reinterpret_cast<void* (*)(void*)>(FdEventThreadFunc),
&thread_arg));
usleep(1000);
for (size_t i = 0; i < MESSAGE_LOOP_COUNT; ++i) {
std::string read_buffer = MESSAGE;
std::string write_buffer(MESSAGE.size(), 'a');
ASSERT_TRUE(WriteFdExactly(writer, read_buffer.c_str(), read_buffer.size()));
ASSERT_TRUE(ReadFdExactly(reader, &write_buffer[0], write_buffer.size()));
ASSERT_EQ(read_buffer, write_buffer);
}
ASSERT_EQ(0, adb_close(writer));
ASSERT_EQ(0, adb_close(reader));
// Wait until the local sockets are closed.
sleep(1);
ASSERT_EQ(0, pthread_kill(thread, SIGUSR1));
ASSERT_EQ(0, pthread_join(thread, nullptr));
}
void restart_usb_service(int fd, void *cookie) {
android::base::SetProperty("service.adb.tcp.port", "0");
WriteFdExactly(fd, "restarting in USB mode\n");
adb_close(fd);
}
/* A worker thread that monitors host connections, and registers a transport for
* every new host connection. This thread replaces server_socket_thread on
* condition that adbd daemon runs inside the emulator, and emulator uses QEMUD
* pipe to communicate with adbd daemon inside the guest. This is done in order
* to provide more robust communication channel between ADB host and guest. The
* main issue with server_socket_thread approach is that it runs on top of TCP,
* and thus is sensitive to network disruptions. For instance, the
* ConnectionManager may decide to reset all network connections, in which case
* the connection between ADB host and guest will be lost. To make ADB traffic
* independent from the network, we use here 'adb' QEMUD service to transfer data
* between the host, and the guest. See external/qemu/android/adb-*.* that
* implements the emulator's side of the protocol. Another advantage of using
* QEMUD approach is that ADB will be up much sooner, since it doesn't depend
* anymore on network being set up.
* The guest side of the protocol contains the following phases:
* - Connect with adb QEMUD service. In this phase a handle to 'adb' QEMUD service
* is opened, and it becomes clear whether or not emulator supports that
* protocol.
* - Wait for the ADB host to create connection with the guest. This is done by
* sending an 'accept' request to the adb QEMUD service, and waiting on
* response.
* - When new ADB host connection is accepted, the connection with adb QEMUD
* service is registered as the transport, and a 'start' request is sent to the
* adb QEMUD service, indicating that the guest is ready to receive messages.
* Note that the guest will ignore messages sent down from the emulator before
* the transport registration is completed. That's why we need to send the
* 'start' request after the transport is registered.
*/
static void qemu_socket_thread(void* arg) {
/* 'accept' request to the adb QEMUD service. */
static const char _accept_req[] = "accept";
/* 'start' request to the adb QEMUD service. */
static const char _start_req[] = "start";
/* 'ok' reply from the adb QEMUD service. */
static const char _ok_resp[] = "ok";
const int port = (int) (uintptr_t) arg;
int fd;
char tmp[256];
char con_name[32];
adb_thread_setname("qemu socket");
D("transport: qemu_socket_thread() starting");
/* adb QEMUD service connection request. */
snprintf(con_name, sizeof(con_name), "qemud:adb:%d", port);
/* Connect to the adb QEMUD service. */
fd = qemu_pipe_open(con_name);
if (fd < 0) {
/* This could be an older version of the emulator, that doesn't
* implement adb QEMUD service. Fall back to the old TCP way. */
D("adb service is not available. Falling back to TCP socket.");
adb_thread_create(server_socket_thread, arg);
return;
}
for(;;) {
/*
* Wait till the host creates a new connection.
*/
/* Send the 'accept' request. */
if (WriteFdExactly(fd, _accept_req, strlen(_accept_req))) {
/* Wait for the response. In the response we expect 'ok' on success,
* or 'ko' on failure. */
if (!ReadFdExactly(fd, tmp, 2) || memcmp(tmp, _ok_resp, 2)) {
D("Accepting ADB host connection has failed.");
adb_close(fd);
} else {
/* Host is connected. Register the transport, and start the
* exchange. */
std::string serial = android::base::StringPrintf("host-%d", fd);
register_socket_transport(fd, serial.c_str(), port, 1);
if (!WriteFdExactly(fd, _start_req, strlen(_start_req))) {
adb_close(fd);
}
}
/* Prepare for accepting of the next ADB host connection. */
fd = qemu_pipe_open(con_name);
if (fd < 0) {
D("adb service become unavailable.");
return;
}
} else {
D("Unable to send the '%s' request to ADB service.", _accept_req);
return;
}
}
D("transport: qemu_socket_thread() exiting");
return;
}
bool SendFail(int fd, const std::string& reason) {
return WriteFdExactly(fd, "FAIL", 4) && SendProtocolString(fd, reason);
}
bool SendOkay(int fd) {
return WriteFdExactly(fd, "OKAY", 4);
}
bool WriteFdExactly(int fd, const std::string& str) {
return WriteFdExactly(fd, str.c_str(), str.size());
}
void framebuffer_service(unique_fd fd) {
struct fbinfo fbinfo;
unsigned int i, bsize;
char buf[640];
int fd_screencap;
int w, h, f, c;
int fds[2];
pid_t pid;
if (pipe2(fds, O_CLOEXEC) < 0) return;
pid = fork();
if (pid < 0) goto done;
if (pid == 0) {
dup2(fds[1], STDOUT_FILENO);
adb_close(fds[0]);
adb_close(fds[1]);
const char* command = "screencap";
const char *args[2] = {command, nullptr};
execvp(command, (char**)args);
perror_exit("exec screencap failed");
}
adb_close(fds[1]);
fd_screencap = fds[0];
/* read w, h, format & color space */
if(!ReadFdExactly(fd_screencap, &w, 4)) goto done;
if(!ReadFdExactly(fd_screencap, &h, 4)) goto done;
if(!ReadFdExactly(fd_screencap, &f, 4)) goto done;
if(!ReadFdExactly(fd_screencap, &c, 4)) goto done;
fbinfo.version = DDMS_RAWIMAGE_VERSION;
fbinfo.colorSpace = c;
/* see hardware/hardware.h */
switch (f) {
case 1: /* RGBA_8888 */
fbinfo.bpp = 32;
fbinfo.size = w * h * 4;
fbinfo.width = w;
fbinfo.height = h;
fbinfo.red_offset = 0;
fbinfo.red_length = 8;
fbinfo.green_offset = 8;
fbinfo.green_length = 8;
fbinfo.blue_offset = 16;
fbinfo.blue_length = 8;
fbinfo.alpha_offset = 24;
fbinfo.alpha_length = 8;
break;
case 2: /* RGBX_8888 */
fbinfo.bpp = 32;
fbinfo.size = w * h * 4;
fbinfo.width = w;
fbinfo.height = h;
fbinfo.red_offset = 0;
fbinfo.red_length = 8;
fbinfo.green_offset = 8;
fbinfo.green_length = 8;
fbinfo.blue_offset = 16;
fbinfo.blue_length = 8;
fbinfo.alpha_offset = 24;
fbinfo.alpha_length = 0;
break;
case 3: /* RGB_888 */
fbinfo.bpp = 24;
fbinfo.size = w * h * 3;
fbinfo.width = w;
fbinfo.height = h;
fbinfo.red_offset = 0;
fbinfo.red_length = 8;
fbinfo.green_offset = 8;
fbinfo.green_length = 8;
fbinfo.blue_offset = 16;
fbinfo.blue_length = 8;
fbinfo.alpha_offset = 24;
fbinfo.alpha_length = 0;
break;
case 4: /* RGB_565 */
fbinfo.bpp = 16;
fbinfo.size = w * h * 2;
fbinfo.width = w;
fbinfo.height = h;
fbinfo.red_offset = 11;
fbinfo.red_length = 5;
fbinfo.green_offset = 5;
fbinfo.green_length = 6;
fbinfo.blue_offset = 0;
fbinfo.blue_length = 5;
fbinfo.alpha_offset = 0;
fbinfo.alpha_length = 0;
break;
case 5: /* BGRA_8888 */
fbinfo.bpp = 32;
fbinfo.size = w * h * 4;
fbinfo.width = w;
fbinfo.height = h;
fbinfo.red_offset = 16;
fbinfo.red_length = 8;
fbinfo.green_offset = 8;
fbinfo.green_length = 8;
fbinfo.blue_offset = 0;
fbinfo.blue_length = 8;
fbinfo.alpha_offset = 24;
fbinfo.alpha_length = 8;
break;
default:
goto done;
}
/* write header */
if (!WriteFdExactly(fd.get(), &fbinfo, sizeof(fbinfo))) goto done;
/* write data */
for(i = 0; i < fbinfo.size; i += bsize) {
bsize = sizeof(buf);
if (i + bsize > fbinfo.size)
bsize = fbinfo.size - i;
if(!ReadFdExactly(fd_screencap, buf, bsize)) goto done;
if (!WriteFdExactly(fd.get(), buf, bsize)) goto done;
}
done:
adb_close(fds[0]);
TEMP_FAILURE_RETRY(waitpid(pid, nullptr, 0));
}
static int sync_recv(int fd, const char* rpath, const char* lpath, bool show_progress) {
syncmsg msg;
int len;
int lfd = -1;
char *buffer = send_buffer.data;
unsigned id;
unsigned long long size = 0;
len = strlen(rpath);
if(len > 1024) return -1;
if (show_progress) {
// Determine remote file size.
syncmsg stat_msg;
stat_msg.req.id = ID_STAT;
stat_msg.req.namelen = htoll(len);
if (!WriteFdExactly(fd, &stat_msg.req, sizeof(stat_msg.req)) ||
!WriteFdExactly(fd, rpath, len)) {
return -1;
}
if (!ReadFdExactly(fd, &stat_msg.stat, sizeof(stat_msg.stat))) {
return -1;
}
if (stat_msg.stat.id != ID_STAT) return -1;
size = ltohl(stat_msg.stat.size);
}
msg.req.id = ID_RECV;
msg.req.namelen = htoll(len);
if(!WriteFdExactly(fd, &msg.req, sizeof(msg.req)) ||
!WriteFdExactly(fd, rpath, len)) {
return -1;
}
if(!ReadFdExactly(fd, &msg.data, sizeof(msg.data))) {
return -1;
}
id = msg.data.id;
if((id == ID_DATA) || (id == ID_DONE)) {
adb_unlink(lpath);
mkdirs(lpath);
lfd = adb_creat(lpath, 0644);
if(lfd < 0) {
fprintf(stderr,"cannot create '%s': %s\n", lpath, strerror(errno));
return -1;
}
goto handle_data;
} else {
goto remote_error;
}
for(;;) {
if(!ReadFdExactly(fd, &msg.data, sizeof(msg.data))) {
return -1;
}
id = msg.data.id;
handle_data:
len = ltohl(msg.data.size);
if(id == ID_DONE) break;
if(id != ID_DATA) goto remote_error;
if(len > SYNC_DATA_MAX) {
fprintf(stderr,"data overrun\n");
adb_close(lfd);
return -1;
}
if(!ReadFdExactly(fd, buffer, len)) {
adb_close(lfd);
return -1;
}
if(!WriteFdExactly(lfd, buffer, len)) {
fprintf(stderr,"cannot write '%s': %s\n", rpath, strerror(errno));
adb_close(lfd);
return -1;
}
total_bytes += len;
if (show_progress) {
print_transfer_progress(total_bytes, size);
}
}
adb_close(lfd);
return 0;
remote_error:
adb_close(lfd);
adb_unlink(lpath);
if(id == ID_FAIL) {
len = ltohl(msg.data.size);
if(len > 256) len = 256;
if(!ReadFdExactly(fd, buffer, len)) {
return -1;
}
buffer[len] = 0;
} else {
memcpy(buffer, &id, 4);
buffer[4] = 0;
}
fprintf(stderr,"failed to copy '%s' to '%s': %s\n", rpath, lpath, buffer);
return 0;
}
static int sync_send(int fd, const char *lpath, const char *rpath,
unsigned mtime, mode_t mode, bool show_progress)
{
syncmsg msg;
int len, r;
syncsendbuf *sbuf = &send_buffer;
char* file_buffer = NULL;
int size = 0;
char tmp[64];
len = strlen(rpath);
if(len > 1024) goto fail;
snprintf(tmp, sizeof(tmp), ",%d", mode);
r = strlen(tmp);
msg.req.id = ID_SEND;
msg.req.namelen = htoll(len + r);
if(!WriteFdExactly(fd, &msg.req, sizeof(msg.req)) ||
!WriteFdExactly(fd, rpath, len) || !WriteFdExactly(fd, tmp, r)) {
free(file_buffer);
goto fail;
}
if (file_buffer) {
write_data_buffer(fd, file_buffer, size, sbuf, show_progress);
free(file_buffer);
} else if (S_ISREG(mode))
write_data_file(fd, lpath, sbuf, show_progress);
else if (S_ISLNK(mode))
write_data_link(fd, lpath, sbuf);
else
goto fail;
msg.data.id = ID_DONE;
msg.data.size = htoll(mtime);
if(!WriteFdExactly(fd, &msg.data, sizeof(msg.data)))
goto fail;
if(!ReadFdExactly(fd, &msg.status, sizeof(msg.status)))
return -1;
if(msg.status.id != ID_OKAY) {
if(msg.status.id == ID_FAIL) {
len = ltohl(msg.status.msglen);
if(len > 256) len = 256;
if(!ReadFdExactly(fd, sbuf->data, len)) {
return -1;
}
sbuf->data[len] = 0;
} else
strcpy(sbuf->data, "unknown reason");
fprintf(stderr,"failed to copy '%s' to '%s': %s\n", lpath, rpath, sbuf->data);
return -1;
}
return 0;
fail:
fprintf(stderr,"protocol failure\n");
adb_close(fd);
return -1;
}
static void close_adb(void* data) {
adb_data* ad = reinterpret_cast<adb_data*>(data);
WriteFdExactly(ad->sfd, "DONEDONE");
}
static bool handle_send_file(int s, const char* path, uid_t uid,
gid_t gid, mode_t mode, std::vector<char>& buffer, bool do_unlink) {
syncmsg msg;
unsigned int timestamp = 0;
int fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
if (fd < 0 && errno == ENOENT) {
if (!secure_mkdirs(path)) {
SendSyncFailErrno(s, "secure_mkdirs failed");
goto fail;
}
fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
}
if (fd < 0 && errno == EEXIST) {
fd = adb_open_mode(path, O_WRONLY | O_CLOEXEC, mode);
}
if (fd < 0) {
SendSyncFailErrno(s, "couldn't create file");
goto fail;
} else {
if (fchown(fd, uid, gid) == -1) {
SendSyncFailErrno(s, "fchown failed");
goto fail;
}
// Not all filesystems support setting SELinux labels. http://b/23530370.
selinux_android_restorecon(path, 0);
// fchown clears the setuid bit - restore it if present.
// Ignore the result of calling fchmod. It's not supported
// by all filesystems. b/12441485
fchmod(fd, mode);
}
while (true) {
unsigned int len;
if (!ReadFdExactly(s, &msg.data, sizeof(msg.data))) goto fail;
if (msg.data.id != ID_DATA) {
if (msg.data.id == ID_DONE) {
timestamp = msg.data.size;
break;
}
SendSyncFail(s, "invalid data message");
goto fail;
}
len = msg.data.size;
if (len > buffer.size()) { // TODO: resize buffer?
SendSyncFail(s, "oversize data message");
goto fail;
}
if (!ReadFdExactly(s, &buffer[0], len)) goto fail;
if (!WriteFdExactly(fd, &buffer[0], len)) {
SendSyncFailErrno(s, "write failed");
goto fail;
}
}
adb_close(fd);
utimbuf u;
u.actime = timestamp;
u.modtime = timestamp;
utime(path, &u);
msg.status.id = ID_OKAY;
msg.status.msglen = 0;
return WriteFdExactly(s, &msg.status, sizeof(msg.status));
fail:
if (fd >= 0) adb_close(fd);
if (do_unlink) adb_unlink(path);
return false;
}
static bool handle_send_file(int s, const char* path, uid_t uid, gid_t gid, uint64_t capabilities,
mode_t mode, std::vector<char>& buffer, bool do_unlink) {
syncmsg msg;
unsigned int timestamp = 0;
__android_log_security_bswrite(SEC_TAG_ADB_SEND_FILE, path);
int fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
if (fd < 0 && errno == ENOENT) {
if (!secure_mkdirs(adb_dirname(path))) {
SendSyncFailErrno(s, "secure_mkdirs failed");
goto fail;
}
fd = adb_open_mode(path, O_WRONLY | O_CREAT | O_EXCL | O_CLOEXEC, mode);
}
if (fd < 0 && errno == EEXIST) {
fd = adb_open_mode(path, O_WRONLY | O_CLOEXEC, mode);
}
if (fd < 0) {
SendSyncFailErrno(s, "couldn't create file");
goto fail;
} else {
if (fchown(fd, uid, gid) == -1) {
SendSyncFailErrno(s, "fchown failed");
goto fail;
}
// Not all filesystems support setting SELinux labels. http://b/23530370.
selinux_android_restorecon(path, 0);
// fchown clears the setuid bit - restore it if present.
// Ignore the result of calling fchmod. It's not supported
// by all filesystems, so we don't check for success. b/12441485
fchmod(fd, mode);
if (!update_capabilities(path, capabilities)) {
SendSyncFailErrno(s, "update_capabilities failed");
goto fail;
}
}
while (true) {
if (!ReadFdExactly(s, &msg.data, sizeof(msg.data))) goto fail;
if (msg.data.id != ID_DATA) {
if (msg.data.id == ID_DONE) {
timestamp = msg.data.size;
break;
}
SendSyncFail(s, "invalid data message");
goto abort;
}
if (msg.data.size > buffer.size()) { // TODO: resize buffer?
SendSyncFail(s, "oversize data message");
goto abort;
}
if (!ReadFdExactly(s, &buffer[0], msg.data.size)) goto abort;
if (!WriteFdExactly(fd, &buffer[0], msg.data.size)) {
SendSyncFailErrno(s, "write failed");
goto fail;
}
}
adb_close(fd);
utimbuf u;
u.actime = timestamp;
u.modtime = timestamp;
utime(path, &u);
msg.status.id = ID_OKAY;
msg.status.msglen = 0;
return WriteFdExactly(s, &msg.status, sizeof(msg.status));
fail:
// If there's a problem on the device, we'll send an ID_FAIL message and
// close the socket. Unfortunately the kernel will sometimes throw that
// data away if the other end keeps writing without reading (which is
// the case with old versions of adb). To maintain compatibility, keep
// reading and throwing away ID_DATA packets until the other side notices
// that we've reported an error.
while (true) {
if (!ReadFdExactly(s, &msg.data, sizeof(msg.data))) goto fail;
if (msg.data.id == ID_DONE) {
goto abort;
} else if (msg.data.id != ID_DATA) {
char id[5];
memcpy(id, &msg.data.id, sizeof(msg.data.id));
id[4] = '\0';
D("handle_send_fail received unexpected id '%s' during failure", id);
goto abort;
}
if (msg.data.size > buffer.size()) {
D("handle_send_fail received oversized packet of length '%u' during failure",
msg.data.size);
goto abort;
}
if (!ReadFdExactly(s, &buffer[0], msg.data.size)) goto abort;
}
abort:
if (fd >= 0) adb_close(fd);
if (do_unlink) adb_unlink(path);
return false;
}
static void reconnect_service(int fd, void* arg) {
WriteFdExactly(fd, "done");
adb_close(fd);
atransport* t = static_cast<atransport*>(arg);
kick_transport(t);
}
bool WriteFdExactly(int fd, const char* str) {
return WriteFdExactly(fd, str, strlen(str));
}
void restart_usb_service(int fd, void *cookie) {
property_set("service.adb.tcp.port", "0");
WriteFdExactly(fd, "restarting in USB mode\n");
adb_close(fd);
}
int adb_send_emulator_command(int argc, const char** argv, const char* serial) {
int fd = connect_to_console(serial);
if (fd == -1) {
return 1;
}
std::string commands = adb_construct_auth_command();
for (int i = 1; i < argc; i++) {
commands.append(argv[i]);
commands.push_back(i == argc - 1 ? '\n' : ' ');
}
commands.append("quit\n");
if (!WriteFdExactly(fd, commands)) {
fprintf(stderr, "error: cannot write to emulator: %s\n",
strerror(errno));
adb_close(fd);
return 1;
}
// Drain output that the emulator console has sent us to prevent a problem
// on Windows where if adb closes the socket without reading all the data,
// the emulator's next call to recv() will have an ECONNABORTED error,
// preventing the emulator from reading the command that adb has sent.
// https://code.google.com/p/android/issues/detail?id=21021
int result;
std::string emulator_output;
do {
char buf[BUFSIZ];
result = adb_read(fd, buf, sizeof(buf));
// Keep reading until zero bytes (orderly/graceful shutdown) or an
// error. If 'adb emu kill' is executed, the emulator calls exit() with
// the socket open (and shutdown(SD_SEND) was not called), which causes
// Windows to send a TCP RST segment which causes adb to get ECONNRESET.
// Any other emu command is followed by the quit command that we
// appended above, and that causes the emulator to close the socket
// which should cause zero bytes (orderly/graceful shutdown) to be
// returned.
if (result > 0) emulator_output.append(buf, result);
} while (result > 0);
// Note: the following messages are expected to be quite stable from emulator.
//
// Emulator console will send the following message upon connection:
//
// Android Console: Authentication required
// Android Console: type 'auth <auth_token>' to authenticate
// Android Console: you can find your <auth_token> in
// '/<path-to-home>/.emulator_console_auth_token'
// OK\r\n
//
// and the following after authentication:
// Android Console: type 'help' for a list of commands
// OK\r\n
//
// So try search and skip first two "OK\r\n", print the rest.
//
const std::string delims = "OK\r\n";
size_t found = 0;
for (int i = 0; i < 2; ++i) {
const size_t result = emulator_output.find(delims, found);
if (result == std::string::npos) {
break;
} else {
found = result + delims.size();
}
}
printf("%s", emulator_output.c_str() + found);
adb_close(fd);
return 0;
}