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17 lines
255 B
Go
17 lines
255 B
Go
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package smtp
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import (
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"net"
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)
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// AddressLiteral returns an IPv4 or IPv6 address literal for use in SMTP.
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func AddressLiteral(ip net.IP) string {
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// ../rfc/5321:2309
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s := "["
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if ip.To4() == nil {
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s += "IPv6:"
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}
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s += ip.String() + "]"
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return s
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}
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