29 lines
928 B
Go
29 lines
928 B
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package dns
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// Function defined in this subpackage work on []byte and but still
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// provide some higher level functions.
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// SetRdlength sets the length of the length of the rdata
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// directly at the correct position in the buffer buf.
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// If buf does not look like a DNS message false is returned,
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// otherwise true.
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func (h *RR_Header) RawSetRdlength(buf []byte, off int) bool {
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off1 := DomainNameLength(h.Name)
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if off1 == 0 || len(buf) < off+off1+2+2+4+1 {
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return false
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}
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// + type(2) + class(2) + ttl(4) is where rdlength it at
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buf[off+off1+2+2+4], buf[off+off1+2+2+4+1] = packUint16(h.Rdlength)
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return true
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}
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// RawSetId sets the message ID in buf.
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func RawSetId(buf []byte, off int, id uint16) bool {
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buf[off], buf[off+1] = packUint16(id)
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return true
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}
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