58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package packer
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import (
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"bytes"
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"encoding/hex"
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"fmt"
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)
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//Packer -- contains both header and data
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type Packer struct {
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Header *packerHeader
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Data *packerData
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}
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//NewPacker -- Structre
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func NewPacker() (p *Packer) {
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p = new(Packer)
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p.Header = newPackerHeader()
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p.Data = newPackerData()
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return
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}
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//PackV1 -- Outputs version 1 of packer
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func (p *Packer) PackV1() (b bytes.Buffer) {
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version := byte(1)
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var headerBuf bytes.Buffer
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headerBuf.WriteString(p.Header.FamilyText())
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headerBuf.WriteString(",")
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headerBuf.Write([]byte(p.Header.Address().String()))
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headerBuf.WriteString(",")
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headerBuf.WriteString(fmt.Sprintf("%d", p.Header.Port))
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headerBuf.WriteString(",")
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headerBuf.WriteString(fmt.Sprintf("%d", p.Data.buffer.Len()))
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headerBuf.WriteString(",")
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headerBuf.WriteString(p.Header.Service)
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var metaBuf bytes.Buffer
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metaBuf.WriteByte(byte(255) - version)
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metaBuf.WriteByte(byte(headerBuf.Len()))
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var buf bytes.Buffer
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buf.Write(metaBuf.Bytes())
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buf.Write(headerBuf.Bytes())
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buf.Write(p.Data.buffer.Bytes())
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fmt.Println("header: ", headerBuf.String())
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fmt.Println("meta: ", metaBuf)
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fmt.Println("Data: ", p.Data.buffer)
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fmt.Println("Buffer: ", buf.Bytes())
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fmt.Println("Buffer: ", hex.Dump(buf.Bytes()))
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fmt.Printf("Buffer %s", buf.Bytes())
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b = buf
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return
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}
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