}

// Preload has to be called prior to invoking the various methods
// below related to pcdata, funcdataoff, files, and inltree nodes.
func (fi *FuncInfo) Preload() {
	fi.lengths = (*goobj.FuncInfo)(nil).ReadFuncInfoLengths(fi.data)
}

func (fi *FuncInfo) NumFile() uint32 {
	if !fi.lengths.Initialized {
		panic("need to call Preload first")
	}
	return fi.lengths.NumFile
}

// from the end of payload. It also returns a byte which is equal to 255 if the
// padding was valid and 0 otherwise. See RFC 2246, Section 6.2.3.2.
func extractPadding(payload []byte) (toRemove int, good byte) {
	if len(payload) < 1 {
		return 0, 0
	}

	paddingLen := payload[len(payload)-1]
	t := uint(len(payload)-1) - uint(paddingLen)
	// if len(payload) >= (paddingLen - 1) then the MSB of t is zero

			{Type: PT_LOAD, Flags: PF_X + PF_R, Off: 0x1000, Vaddr: 0x400000, Paddr: 0x0, Filesz: 0x0, Memsz: 0x1000, Align: 0x1000},
			{Type: PT_LOAD, Flags: PF_R, Off: 0x1000, Vaddr: 0x401000, Paddr: 0x0, Filesz: 0x1000, Memsz: 0x1000, Align: 0x1000},
			{Type: PT_LOAD, Flags: PF_W + PF_R, Off: 0x2000, Vaddr: 0x402000, Paddr: 0x0, Filesz: 0x1000, Memsz: 0x1000, Align: 0x1000},

		{name: "FMOVSloadidx", argLength: 3, reg: fp2load, asm: "FMOVS", typ: "Float32"}, // load 32-bit float from arg0 + arg1, arg2=mem.
		{name: "FMOVDloadidx", argLength: 3, reg: fp2load, asm: "FMOVD", typ: "Float64"}, // load 64-bit float from arg0 + arg1, arg2=mem.

		// shifted register indexed load

			switch code {
			case http.StatusEarlyHints:
				checkLinkHeaders(t, []string{"</style.css>; rel=preload; as=style", "</script.js>; rel=preload; as=script"}, header["Link"])
			case http.StatusProcessing:
				checkLinkHeaders(t, []string{"</style.css>; rel=preload; as=style", "</script.js>; rel=preload; as=script", "</foo.js>; rel=preload; as=script"}, header["Link"])
			default:
				t.Error("Unexpected 1xx response")
			}

func keyctlIOV(cmd int, arg2 int, payload []Iovec, arg5 int) (err error) {
	var _p0 unsafe.Pointer
	if len(payload) > 0 {
		_p0 = unsafe.Pointer(&payload[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	_, _, e1 := Syscall6(SYS_KEYCTL, uintptr(cmd), uintptr(arg2), uintptr(_p0), uintptr(len(payload)), uintptr(arg5), 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

                            response.setDigest(dgst);
                            byte[] payload = response.getRawPayload();
                            if ( !response.verifySignature(payload, 0, payload.length) ) {
                                throw new SmbException("Signature validation failed");
                            }
                        }

        }
        int size = Encdec.dec_uint16be(this.sbuf, 2) & 0xFFFF;
        if ( size < 33 || ( 4 + size ) > this.sbuf.length ) {
            throw new IOException("Invalid payload size: " + size);
        }
        int hdrSize = this.smb2 ? Smb2Constants.SMB2_HEADER_LENGTH : SMB1_HEADER_LENGTH;
        readn(this.in, this.sbuf, 4 + hdrSize, size - hdrSize);
        log.trace("Read negotiate response");

func signStreamingRequest(req *http.Request, accessKey, secretKey string, currTime time.Time) (string, error) {
	// Get hashed payload.
	hashedPayload := req.Header.Get("x-amz-content-sha256")
	if hashedPayload == "" {
		return "", fmt.Errorf("Invalid hashed payload")
	}

	// Set x-amz-date.
	req.Header.Set("x-amz-date", currTime.Format(iso8601Format))

	// Get header map.

	return keyctlSearch(KEYCTL_SEARCH, ringid, keyType, description, destRingid)
}

//sys	keyctlIOV(cmd int, arg2 int, payload []Iovec, arg5 int) (err error) = SYS_KEYCTL

// KeyctlInstantiateIOV implements the KEYCTL_INSTANTIATE_IOV command. This
// command is similar to KEYCTL_INSTANTIATE, except that the payload is a slice
// of Iovec (each of which represents a buffer) instead of a single buffer.
// See the full documentation at: