[OpenSIPS-Users] fetch username from the URI

[Prathibha B]

I am getting the source and destination URI from $fu and $ru.  How to fetch
the SIP username from the source and destination URI.

What I've tried and not working:
# Extract destination URI from the R-URI (Request-URI)
            $var(destination_uri) = $(ru);

            # Find the position of "@" character in the URI
            $var(at_position) = strstr($(ru), "@");

            # If "@" is found, extract the substring before it as the SIP
username
            if ($var(at_position) != -1) {
                $var(destination_username) = substr($var(destination_uri),
4, $var(at_position) - 5);
            } else {
                $var(destination_username) = "Unknown";
            }

-- 
Regards,
B.Prathibha
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