package jcifs.smb1.smb1;

import java.io.IOException;

import jcifs.smb1.util.Hexdump;

/**
 * An Access Control Entry (ACE) is an element in a security descriptor
 * such as those associated with files and directories. The Windows OS
 * determines which users have the necessary permissions to access objects
 * based on these entries.
 * <p>
 * To fully understand the information exposed by this class a description

// DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
//
// THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
// CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
// PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
// NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE
// SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE

        share = path.substring(s1 + 1, s2);

        key = path.substring(0, dr.pathConsumed).toLowerCase();

        /* Samba has a tendency to return referral paths and pathConsumed values
         * in such a way that there can be a slash at the end of the path. This
         * causes problems matching keys in resolve() where an extra slash causes
         * a mismatch. This strips trailing slashes from all keys to eliminate

        // buffer remaining input
        if (i < len)
            System.arraycopy(input, offset + i, buffer, bufferNdx, len - i);
    }

    /**
     * Completes the hash computation by performing final operations such
     * as padding. At the return of this engineDigest, the MD engine is
     * reset.
     *
     * @return the array of bytes for the resulting hash value.
     */
    public byte[] engineDigest () {

            } catch( UnknownHostException uhe ) {
                /* Java cannot determine the localhost. This is basically a config
                 * issue on the host. There's not much we can do about it. Just
                 * to suppress NPEs that would result we can create a possibly bogus
                 * address. Pretty sure the below cannot actually thrown a UHE tho.
                 */

                fields.add(new DERTaggedObject(true, 0, new ASN1Enumerated(res)));
            }
            ASN1ObjectIdentifier mech = getMechanism();
            if ( mech != null ) {
                fields.add(new DERTaggedObject(true, 1, mech));
            }
            byte[] mechanismToken = getMechanismToken();
            if ( mechanismToken != null ) {

                boolean foundKerberos = false;
                for ( ASN1ObjectIdentifier mech : Kerb5Context.SUPPORTED_MECHS ) {
                    foundKerberos |= mechs.contains(mech);
                }
                if ( ( !foundKerberos || this.forceFallback ) && this.canFallback && tc.getConfig().isAllowNTLMFallback() ) {

                response.adjustOffset(n);
            }
            while ( len > blockSize && n == r );
            // this used to be len > 0, but this is BS:
            // - InputStream.read gives no such guarantee
            // - otherwise the caller would need to figure out the block size, or otherwise might end up with very small
            // reads
            return (int) ( this.fp - start );
        }
    }

    private static final ASN1ObjectIdentifier KRB5_MECH_OID;
    private static final ASN1ObjectIdentifier KRB5_MS_MECH_OID;
    static final ASN1ObjectIdentifier[] SUPPORTED_MECHS;
    private static final Oid JGSS_KRB5_NAME_OID;
    private static final Oid JGSS_KRB5_MECH_OID;

    static {
        KRB5_MECH_OID = new ASN1ObjectIdentifier("1.2.840.113554.1.2.2");
        KRB5_MS_MECH_OID = new ASN1ObjectIdentifier("1.2.840.48018.1.2.2");

        int i;
        int len;
        if ( buf.length < TOK_ID_SIZE + MECH_OID_LEN_SIZE ) {
            throw new IllegalArgumentException();
        }
        // TOK_ID
        for ( i = 0; i < TOK_ID.length; i++ ) {
            if ( TOK_ID[ i ] != buf[ i ] ) {
                throw new IllegalArgumentException();
            }
        }
        // MECH_OID_LEN
        len = 0xff00 & ( buf[ i++ ] << 8 );