Examples with ErrnoException android.system.ErrnoException used on opensource projects

Example 86 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class PackageInstallerSession method createRemoveSplitMarker.

private void createRemoveSplitMarker(String splitName) throws IOException {
    try {
        final String markerName = splitName + REMOVE_SPLIT_MARKER_EXTENSION;
        if (!FileUtils.isValidExtFilename(markerName)) {
            throw new IllegalArgumentException("Invalid marker: " + markerName);
        }
        final File target = new File(resolveStageDir(), markerName);
        target.createNewFile();
        Os.chmod(target.getAbsolutePath(), 0);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 87 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class PackageInstallerSession method copyFiles.

private static void copyFiles(List<File> fromFiles, File toDir) throws IOException {
    // Remove any partial files from previous attempt
    for (File file : toDir.listFiles()) {
        if (file.getName().endsWith(".tmp")) {
            file.delete();
        }
    }
    for (File fromFile : fromFiles) {
        final File tmpFile = File.createTempFile("inherit", ".tmp", toDir);
        if (LOGD)
            Slog.d(TAG, "Copying " + fromFile + " to " + tmpFile);
        if (!FileUtils.copyFile(fromFile, tmpFile)) {
            throw new IOException("Failed to copy " + fromFile + " to " + tmpFile);
        }
        try {
            Os.chmod(tmpFile.getAbsolutePath(), 0644);
        } catch (ErrnoException e) {
            throw new IOException("Failed to chmod " + tmpFile);
        }
        final File toFile = new File(toDir, fromFile.getName());
        if (LOGD)
            Slog.d(TAG, "Renaming " + tmpFile + " to " + toFile);
        if (!tmpFile.renameTo(toFile)) {
            throw new IOException("Failed to rename " + tmpFile + " to " + toFile);
        }
    }
    Slog.d(TAG, "Copied " + fromFiles.size() + " files into " + toDir);
}

Example 88 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class UserManagerService method getSerialNumber.

/**
     * Return serial number stored in user directory inode.
     *
     * @return parsed serial number, or -1 if not set
     */
private static int getSerialNumber(File file) throws IOException {
    try {
        final byte[] buf = new byte[256];
        final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf);
        final String serial = new String(buf, 0, len);
        try {
            return Integer.parseInt(serial);
        } catch (NumberFormatException e) {
            throw new IOException("Bad serial number: " + serial);
        }
    } catch (ErrnoException e) {
        if (e.errno == OsConstants.ENODATA) {
            return -1;
        } else {
            throw e.rethrowAsIOException();
        }
    }
}

Example 89 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class SELinuxPolicyInstallReceiver method applyUpdate.

private void applyUpdate() throws IOException, ErrnoException {
    Slog.i(TAG, "Applying SELinux policy");
    File backup = new File(updateDir.getParentFile(), "backup");
    File current = new File(updateDir.getParentFile(), "current");
    File tmp = new File(updateDir.getParentFile(), "tmp");
    if (current.exists()) {
        deleteRecursive(backup);
        Os.rename(current.getPath(), backup.getPath());
    }
    try {
        Os.rename(tmp.getPath(), current.getPath());
        SystemProperties.set("selinux.reload_policy", "1");
    } catch (ErrnoException e) {
        Slog.e(TAG, "Could not update selinux policy: ", e);
        if (backup.exists()) {
            Os.rename(backup.getPath(), current.getPath());
        }
    }
}

Example 90 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by ResurrectionRemix.

the class IpReachabilityMonitor method probeNeighbor.

/**
     * Make the kernel perform neighbor reachability detection (IPv4 ARP or IPv6 ND)
     * for the given IP address on the specified interface index.
     *
     * @return 0 if the request was successfully passed to the kernel; otherwise return
     *         a non-zero error code.
     */
private static int probeNeighbor(int ifIndex, InetAddress ip) {
    final String msgSnippet = "probing ip=" + ip.getHostAddress() + "%" + ifIndex;
    if (DBG) {
        Log.d(TAG, msgSnippet);
    }
    final byte[] msg = RtNetlinkNeighborMessage.newNewNeighborMessage(1, ip, StructNdMsg.NUD_PROBE, ifIndex, null);
    int errno = -OsConstants.EPROTO;
    try (NetlinkSocket nlSocket = new NetlinkSocket(OsConstants.NETLINK_ROUTE)) {
        final long IO_TIMEOUT = 300L;
        nlSocket.connectToKernel();
        nlSocket.sendMessage(msg, 0, msg.length, IO_TIMEOUT);
        final ByteBuffer bytes = nlSocket.recvMessage(IO_TIMEOUT);
        // recvMessage() guaranteed to not return null if it did not throw.
        final NetlinkMessage response = NetlinkMessage.parse(bytes);
        if (response != null && response instanceof NetlinkErrorMessage && (((NetlinkErrorMessage) response).getNlMsgError() != null)) {
            errno = ((NetlinkErrorMessage) response).getNlMsgError().error;
            if (errno != 0) {
                // TODO: consider ignoring EINVAL (-22), which appears to be
                // normal when probing a neighbor for which the kernel does
                // not already have / no longer has a link layer address.
                Log.e(TAG, "Error " + msgSnippet + ", errmsg=" + response.toString());
            }
        } else {
            String errmsg;
            if (response == null) {
                bytes.position(0);
                errmsg = "raw bytes: " + NetlinkConstants.hexify(bytes);
            } else {
                errmsg = response.toString();
            }
            Log.e(TAG, "Error " + msgSnippet + ", errmsg=" + errmsg);
        }
    } catch (ErrnoException e) {
        Log.e(TAG, "Error " + msgSnippet, e);
        errno = -e.errno;
    } catch (InterruptedIOException e) {
        Log.e(TAG, "Error " + msgSnippet, e);
        errno = -OsConstants.ETIMEDOUT;
    } catch (SocketException e) {
        Log.e(TAG, "Error " + msgSnippet, e);
        errno = -OsConstants.EIO;
    }
    return errno;
}