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

Example 6 with IntByReference

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

the class Advapi32Test method testGetTokenGroupsInformation.

public void testGetTokenGroupsInformation() {
    HANDLEByReference phToken = new HANDLEByReference();
    try {
        HANDLE processHandle = Kernel32.INSTANCE.GetCurrentProcess();
        assertTrue(Advapi32.INSTANCE.OpenProcessToken(processHandle, WinNT.TOKEN_DUPLICATE | WinNT.TOKEN_QUERY, phToken));
        IntByReference tokenInformationLength = new IntByReference();
        assertFalse(Advapi32.INSTANCE.GetTokenInformation(phToken.getValue(), WinNT.TOKEN_INFORMATION_CLASS.TokenGroups, null, 0, tokenInformationLength));
        assertEquals(W32Errors.ERROR_INSUFFICIENT_BUFFER, Kernel32.INSTANCE.GetLastError());
        WinNT.TOKEN_GROUPS groups = new WinNT.TOKEN_GROUPS(tokenInformationLength.getValue());
        assertTrue(Advapi32.INSTANCE.GetTokenInformation(phToken.getValue(), WinNT.TOKEN_INFORMATION_CLASS.TokenGroups, groups, tokenInformationLength.getValue(), tokenInformationLength));
        assertTrue(tokenInformationLength.getValue() > 0);
        assertTrue(groups.GroupCount > 0);
        for (SID_AND_ATTRIBUTES sidAndAttribute : groups.getGroups()) {
            assertTrue(Advapi32.INSTANCE.IsValidSid(sidAndAttribute.Sid));
        // System.out.println(Advapi32Util.convertSidToStringSid(sidAndAttribute.Sid));
        }
    } finally {
        Kernel32Util.closeHandleRef(phToken);
    }
}

Example 7 with IntByReference

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

the class Advapi32Test method testAdjustTokenPrivileges.

public void testAdjustTokenPrivileges() {
    HANDLEByReference hToken = new HANDLEByReference();
    assertTrue(Advapi32.INSTANCE.OpenProcessToken(Kernel32.INSTANCE.GetCurrentProcess(), WinNT.TOKEN_ADJUST_PRIVILEGES | WinNT.TOKEN_QUERY, hToken));
    try {
        // Find an already enabled privilege
        TOKEN_PRIVILEGES tp = new TOKEN_PRIVILEGES(1024);
        IntByReference returnLength = new IntByReference();
        assertTrue(Advapi32.INSTANCE.GetTokenInformation(hToken.getValue(), WinNT.TOKEN_INFORMATION_CLASS.TokenPrivileges, tp, tp.size(), returnLength));
        assertTrue(tp.PrivilegeCount.intValue() > 0);
        WinNT.LUID luid = null;
        for (int i = 0; i < tp.PrivilegeCount.intValue(); i++) {
            if ((tp.Privileges[i].Attributes.intValue() & WinNT.SE_PRIVILEGE_ENABLED) > 0) {
                luid = tp.Privileges[i].Luid;
            }
        }
        assertTrue(luid != null);
        // Re-enable it. That should succeed.
        tp = new WinNT.TOKEN_PRIVILEGES(1);
        tp.Privileges[0] = new WinNT.LUID_AND_ATTRIBUTES(luid, new DWORD(WinNT.SE_PRIVILEGE_ENABLED));
        assertTrue(Advapi32.INSTANCE.AdjustTokenPrivileges(hToken.getValue(), false, tp, 0, null, null));
    } finally {
        Kernel32Util.closeHandleRef(hToken);
    }
}

Example 8 with IntByReference

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

the class Advapi32Test method testCreateWellKnownSid.

public void testCreateWellKnownSid() {
    PSID pSid = new PSID(WinNT.SECURITY_MAX_SID_SIZE);
    IntByReference cbSid = new IntByReference(WinNT.SECURITY_MAX_SID_SIZE);
    assertTrue("Failed to create well-known SID", Advapi32.INSTANCE.CreateWellKnownSid(WELL_KNOWN_SID_TYPE.WinWorldSid, null, pSid, cbSid));
    assertTrue("Not recognized as well-known SID", Advapi32.INSTANCE.IsWellKnownSid(pSid, WELL_KNOWN_SID_TYPE.WinWorldSid));
    assertTrue("Invalid SID size", cbSid.getValue() <= WinNT.SECURITY_MAX_SID_SIZE);
    PointerByReference convertedSidStringPtr = new PointerByReference();
    assertTrue("Failed to convert SID", Advapi32.INSTANCE.ConvertSidToStringSid(pSid, convertedSidStringPtr));
    Pointer conv = convertedSidStringPtr.getValue();
    try {
        String convertedSidString = conv.getWideString(0);
        assertEquals("Mismatched SID string", EVERYONE, convertedSidString);
    } finally {
        Kernel32Util.freeLocalMemory(conv);
    }
}

Example 9 with IntByReference

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

the class Advapi32Test method testReadEventLogEntries.

public void testReadEventLogEntries() {
    HANDLE h = Advapi32.INSTANCE.OpenEventLog(null, "Application");
    IntByReference pnBytesRead = new IntByReference();
    IntByReference pnMinNumberOfBytesNeeded = new IntByReference();
    Memory buffer = new Memory(1024 * 64);
    // shorten test, avoid iterating through all events
    int maxReads = 3;
    int rc = 0;
    while (true) {
        if (maxReads-- <= 0)
            break;
        if (!Advapi32.INSTANCE.ReadEventLog(h, WinNT.EVENTLOG_SEQUENTIAL_READ | WinNT.EVENTLOG_FORWARDS_READ, 0, buffer, (int) buffer.size(), pnBytesRead, pnMinNumberOfBytesNeeded)) {
            rc = Kernel32.INSTANCE.GetLastError();
            if (rc == W32Errors.ERROR_INSUFFICIENT_BUFFER) {
                buffer = new Memory(pnMinNumberOfBytesNeeded.getValue());
                rc = 0;
                continue;
            }
            break;
        }
        int dwRead = pnBytesRead.getValue();
        Pointer pevlr = buffer;
        int maxRecords = 3;
        while (dwRead > 0 && maxRecords-- > 0) {
            EVENTLOGRECORD record = new EVENTLOGRECORD(pevlr);
            /*
                  System.out.println(record.RecordNumber.intValue()
                  + " Event ID: " + record.EventID.intValue()
                  + " Event Type: " + record.EventType.intValue()
                  + " Event Source: " + pevlr.getString(record.size(), true));
                */
            dwRead -= record.Length.intValue();
            pevlr = pevlr.share(record.Length.intValue());
        }
    }
    assertTrue("Unexpected error after reading event log: " + new Win32Exception(rc), rc == W32Errors.ERROR_HANDLE_EOF || rc == 0);
    assertTrue("Error closing event log", Advapi32.INSTANCE.CloseEventLog(h));
}

Example 10 with IntByReference

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

the class Advapi32Test method testAddAccessAllowedAce.

public void testAddAccessAllowedAce() throws IOException {
    ACL pAcl;
    int cbAcl = 0;
    PSID pSid = new PSID(WinNT.SECURITY_MAX_SID_SIZE);
    IntByReference cbSid = new IntByReference(WinNT.SECURITY_MAX_SID_SIZE);
    assertTrue("Failed to create well-known SID", Advapi32.INSTANCE.CreateWellKnownSid(WELL_KNOWN_SID_TYPE.WinBuiltinAdministratorsSid, null, pSid, cbSid));
    int sidLength = Advapi32.INSTANCE.GetLengthSid(pSid);
    cbAcl = Native.getNativeSize(ACL.class, null);
    cbAcl += Advapi32Util.getAceSize(sidLength);
    cbAcl = Advapi32Util.alignOnDWORD(cbAcl);
    pAcl = new ACL(cbAcl);
    assertTrue(Advapi32.INSTANCE.InitializeAcl(pAcl, cbAcl, WinNT.ACL_REVISION));
    assertTrue(Advapi32.INSTANCE.AddAccessAllowedAce(pAcl, WinNT.ACL_REVISION, WinNT.STANDARD_RIGHTS_ALL, pSid));
    PointerByReference pAce = new PointerByReference(new Memory(16));
    assertTrue(Advapi32.INSTANCE.GetAce(pAcl, 0, pAce));
    ACCESS_ALLOWED_ACE pAceGet = new ACCESS_ALLOWED_ACE(pAce.getValue());
    assertTrue(pAceGet.Mask == WinNT.STANDARD_RIGHTS_ALL);
    assertTrue(Advapi32.INSTANCE.EqualSid(pAceGet.psid, pSid));
}