//go:build !purego

#include "textflag.h"

// func block(dig *digest, p []byte)
TEXT ·block(SB), NOSPLIT|NOFRAME, $0-32
	MOVBZ  ·useAsm(SB), R4
	LMG    dig+0(FP), R1, R3            // R2 = &p[0], R3 = len(p)
	MOVBZ  $1, R0                       // SHA-1 function code
	CMPBEQ R4, $0, generic

loop:
	KIMD R0, R2      // compute intermediate message digest (KIMD)
	BVS  loop        // continue if interrupted
	RET

generic:

    }


    /**
     * @param digest
     *            the digest to set
     * @throws SmbException
     */
    private void setDigest ( SMBSigningDigest digest ) throws SmbException {
        if ( this.transport.isSMB2() ) {
            this.digest = digest;
        }
        else {
            this.transport.setDigest(digest);
        }
    }


    /**

// to w.
func (z *Writer) Reset(w io.Writer) {
	z.w = w
	// z.level and z.dict left unchanged.
	if z.compressor != nil {
		z.compressor.Reset(w)
	}
	if z.digest != nil {
		z.digest.Reset()
	}
	z.err = nil
	z.scratch = [4]byte{}
	z.wroteHeader = false
}

// writeHeader writes the ZLIB header.
func (z *Writer) writeHeader() (err error) {
	z.wroteHeader = true

                            throw ex;
    
                        uid = response.uid;
    
                        if( request.digest != null ) {
                            /* success - install the signing digest */
                            transport.digest = request.digest;
                        }
    
                        connectionState = 2;    

                        state = 0;
    

		if d, err := name.NewDigest(key.downloadURL[len(ociURLPrefix):]); err == nil {
			// If there is no checksum and the digest is suffixed in URL, use the digest.
			dstr := d.DigestStr()
			if strings.HasPrefix(dstr, sha256SchemePrefix) {
				key.checksum = dstr[len(sha256SchemePrefix):]
			}
			// For other digest scheme, give up to use cache.
		}
	}

	if len(key.checksum) == 0 {
		// If no checksum, try the checksum cache.

//go:build !purego

#include "textflag.h"

// func block(dig *digest, p []byte)
TEXT ·block(SB), NOSPLIT|NOFRAME, $0-32
	MOVBZ  ·useAsm(SB), R4
	LMG    dig+0(FP), R1, R3            // R2 = &p[0], R3 = len(p)
	MOVBZ  $2, R0                       // SHA-256 function code
	CMPBEQ R4, $0, generic

loop:
	KIMD R0, R2      // compute intermediate message digest (KIMD)
	BVS  loop        // continue if interrupted
	RET

generic:

//go:build !purego

#include "textflag.h"

// func block(dig *digest, p []byte)
TEXT ·block(SB), NOSPLIT|NOFRAME, $0-32
	MOVBZ  ·useAsm(SB), R4
	LMG    dig+0(FP), R1, R3            // R2 = &p[0], R3 = len(p)
	MOVBZ  $3, R0                       // SHA-512 function code
	CMPBEQ R4, $0, generic

loop:
	KIMD R0, R2      // compute intermediate message digest (KIMD)
	BVS  loop        // continue if interrupted
	RET

generic:

		0x1032d841e824f998,
	},
}

func TestXXHash(t *testing.T) {
	var xh xxhash64
	for i, test := range xxHashTests {
		xh.reset()
		xh.update([]byte(test.data))
		if got := xh.digest(); got != test.hash {
			t.Errorf("#%d: got %#x want %#x", i, got, test.hash)
		}
	}
}

func TestLargeXXHash(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping expensive test in short mode")
	}

		return PSSSaltLengthAuto
	}
	return opts.SaltLength
}

var invalidSaltLenErr = errors.New("crypto/rsa: PSSOptions.SaltLength cannot be negative")

// SignPSS calculates the signature of digest using PSS.
//
// digest must be the result of hashing the input message using the given hash
// function. The opts argument may be nil, in which case sensible defaults are
// used. If opts.Hash is set, it overrides hash.
//

     * @param dst
     * @param dstIndex
     * @return message length
     */
    int encode ( byte[] dst, int dstIndex );


    /**
     * @param digest
     */
    void setDigest ( SMBSigningDigest digest );


    /**
     * @return the signing digest
     */
    SMBSigningDigest getDigest ();


    /**
     * @return the associated response
     */