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Need a mechanism to output binary expressions as hexadecimal strings
A prospective user attempted to use the following expression for a value of a Radius attribute:
{ "name": "Password" "expr": "pkt4.mac" }
The value produced by pkt4.mac, is a series of binary bytes, which cannot be expressed in a Radius authorization file. The radius server actually errors out stating the values do not match. We need a way to convert an expression result to a string literal such as:
"0xXXXXX" or "xx:xx:xx"
We could do it as perhaps a function:
hexString(pkt4.mac)
This would be useful beyond this particular case involving Radius. As an aside using the same expression for User Name or Connection Id work because we convert it to a string, under the covers.