Examples with PointerByReference com.sun.jna.ptr.PointerByReference used on opensource projects

Example 66 with PointerByReference

use of com.sun.jna.ptr.PointerByReference in project jna by java-native-access.

the class Advapi32Util method getAccountBySid.

/**
	 * Get the account by SID.
	 *
	 * @param systemName
	 *            Name of the system.
	 * @param sid
	 *            SID.
	 * @return Account.
	 */
public static Account getAccountBySid(String systemName, PSID sid) {
    IntByReference cchName = new IntByReference();
    IntByReference cchDomainName = new IntByReference();
    PointerByReference peUse = new PointerByReference();
    if (Advapi32.INSTANCE.LookupAccountSid(null, sid, null, cchName, null, cchDomainName, peUse)) {
        throw new RuntimeException("LookupAccountSidW was expected to fail with ERROR_INSUFFICIENT_BUFFER");
    }
    int rc = Kernel32.INSTANCE.GetLastError();
    if (cchName.getValue() == 0 || rc != W32Errors.ERROR_INSUFFICIENT_BUFFER) {
        throw new Win32Exception(rc);
    }
    char[] domainName = new char[cchDomainName.getValue()];
    char[] name = new char[cchName.getValue()];
    if (!Advapi32.INSTANCE.LookupAccountSid(null, sid, name, cchName, domainName, cchDomainName, peUse)) {
        throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
    }
    Account account = new Account();
    account.accountType = peUse.getPointer().getInt(0);
    account.name = Native.toString(name);
    if (cchDomainName.getValue() > 0) {
        account.domain = Native.toString(domainName);
        account.fqn = account.domain + "\\" + account.name;
    } else {
        account.fqn = account.name;
    }
    account.sid = sid.getBytes();
    account.sidString = convertSidToStringSid(sid);
    return account;
}

Example 67 with PointerByReference

use of com.sun.jna.ptr.PointerByReference in project jna by java-native-access.

the class Advapi32Util method getAccountByName.

/**
	 * Retrieves a security identifier (SID) for a given account.
	 *
	 * @param systemName
	 *            Name of the system.
	 * @param accountName
	 *            Account name.
	 * @return A structure containing the account SID.
	 */
public static Account getAccountByName(String systemName, String accountName) {
    IntByReference pSid = new IntByReference(0);
    IntByReference cchDomainName = new IntByReference(0);
    PointerByReference peUse = new PointerByReference();
    if (Advapi32.INSTANCE.LookupAccountName(systemName, accountName, null, pSid, null, cchDomainName, peUse)) {
        throw new RuntimeException("LookupAccountNameW was expected to fail with ERROR_INSUFFICIENT_BUFFER");
    }
    int rc = Kernel32.INSTANCE.GetLastError();
    if (pSid.getValue() == 0 || rc != W32Errors.ERROR_INSUFFICIENT_BUFFER) {
        throw new Win32Exception(rc);
    }
    Memory sidMemory = new Memory(pSid.getValue());
    PSID result = new PSID(sidMemory);
    char[] referencedDomainName = new char[cchDomainName.getValue() + 1];
    if (!Advapi32.INSTANCE.LookupAccountName(systemName, accountName, result, pSid, referencedDomainName, cchDomainName, peUse)) {
        throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
    }
    Account account = new Account();
    account.accountType = peUse.getPointer().getInt(0);
    account.name = accountName;
    String[] accountNamePartsBs = accountName.split("\\\\", 2);
    String[] accountNamePartsAt = accountName.split("@", 2);
    if (accountNamePartsBs.length == 2) {
        account.name = accountNamePartsBs[1];
    } else if (accountNamePartsAt.length == 2) {
        account.name = accountNamePartsAt[0];
    } else {
        account.name = accountName;
    }
    if (cchDomainName.getValue() > 0) {
        account.domain = Native.toString(referencedDomainName);
        account.fqn = account.domain + "\\" + account.name;
    } else {
        account.fqn = account.name;
    }
    account.sid = result.getBytes();
    account.sidString = convertSidToStringSid(new PSID(account.sid));
    return account;
}

Example 68 with PointerByReference

use of com.sun.jna.ptr.PointerByReference in project jna by java-native-access.

the class Shell32Util method getKnownFolderPath.

/**
     * Retrieves the full path of a known folder identified by the folder's KNOWNFOLDERID. This function replaces
     * {@link #getFolderPath}. That older function is now simply a wrapper for getKnownFolderPath
     * @param guid the KNOWNFOLDERS GUID as defined in {@link KnownFolders}
     * @return the path of the known folder. The returned path does not include a trailing backslash. For example,
     *        "C:\Users" is returned rather than "C:\Users\".
     * @throws Win32Exception if the guid references a KNOWNFOLDERID which does not have a path (such as a folder marked
     *        as KF_CATEGORY_VIRTUAL) or that the KNOWNFOLDERID is not present on the system. Not all KNOWNFOLDERID values are
     *        present on all systems.
     */
public static String getKnownFolderPath(GUID guid) throws Win32Exception {
    int flags = ShlObj.KNOWN_FOLDER_FLAG.NONE.getFlag();
    PointerByReference outPath = new PointerByReference();
    HANDLE token = null;
    HRESULT hr = Shell32.INSTANCE.SHGetKnownFolderPath(guid, flags, token, outPath);
    if (!W32Errors.SUCCEEDED(hr.intValue())) {
        throw new Win32Exception(hr);
    }
    String result = outPath.getValue().getWideString(0);
    Ole32.INSTANCE.CoTaskMemFree(outPath.getValue());
    return result;
}

Example 69 with PointerByReference

use of com.sun.jna.ptr.PointerByReference in project jna by java-native-access.

the class VersionUtil method getFileVersionInfo.

/**
     * Gets the file's version number info
     * 
     * @param filePath
     *            The path to the file
     * @return The VS_FIXEDFILEINFO structure read from the file.<br>
     *         Use the getFileVersionMajor(), getFileVersionMinor(),
     *         getFileVersionRevision(), and getFileVersionBuild()
     * @throws UnsupportedOperationException
     *             if VerQueryValue fails to get version info from the file.
     */
public static VS_FIXEDFILEINFO getFileVersionInfo(String filePath) {
    IntByReference dwDummy = new IntByReference();
    int versionLength = Version.INSTANCE.GetFileVersionInfoSize(filePath, dwDummy);
    // throw a Win32Exception with GetLastError()
    if (versionLength == 0) {
        throw new Win32Exception(Native.getLastError());
    }
    // buffer to hold version info
    Pointer lpData = new Memory(versionLength);
    // pointer to pointer to location in aforementioned buffer
    PointerByReference lplpBuffer = new PointerByReference();
    if (!Version.INSTANCE.GetFileVersionInfo(filePath, 0, versionLength, lpData)) {
        throw new Win32Exception(Native.getLastError());
    }
    // here to make VerQueryValue happy.
    IntByReference puLen = new IntByReference();
    // this does not set GetLastError, so no need to throw a Win32Exception
    if (!Version.INSTANCE.VerQueryValue(lpData, "\\", lplpBuffer, puLen)) {
        throw new UnsupportedOperationException("Unable to extract version info from the file: \"" + filePath + "\"");
    }
    VS_FIXEDFILEINFO fileInfo = new VS_FIXEDFILEINFO(lplpBuffer.getValue());
    fileInfo.read();
    return fileInfo;
}

Example 70 with PointerByReference

use of com.sun.jna.ptr.PointerByReference in project jna by java-native-access.

the class W32FileMonitor method waitForChange.

private FileInfo waitForChange() {
    IntByReference rcount = new IntByReference();
    ULONG_PTRByReference rkey = new ULONG_PTRByReference();
    PointerByReference roverlap = new PointerByReference();
    if (!Kernel32.INSTANCE.GetQueuedCompletionStatus(port, rcount, rkey, roverlap, WinBase.INFINITE)) {
        return null;
    }
    synchronized (this) {
        return handleMap.get(new HANDLE(rkey.getValue().toPointer()));
    }
}