How to send broadcast with net-snmp 5.4.1.2

Dear All,

I am using net-snmp-5.4.1.2 and I want to develop an application for sending broadcast.
The code is like:

struct snmp_session sess_template;
snmp_sess_init(&sess_template);
...
sess_template.peername  = strdup("255.255.255.255");
...
sess_template.callback  = asynch_response;
...

It fails with "Failure in sendto".
Is it possible for 5.4.1.2 to send UDPv4 broadcast and how?

I also found that path 700681 can enable settings of UDP broadcast on an SNMP session with SNMP_FLAGS_UDP_BROADCAST.
Where can I find the corresponding path against 5.4.1.2?

Thanks!

// Zeyi
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