Hello,
I am using net-snmp 5.0.8. I am trying the example code on the web: I have my host registered as a trap receiver, and the code is as follows. I was able to generate a trap on the sender side, but my reciever code just block over select call. I don't understand why. The same piece of code worked okay with ucd-snmp 4.2.5 version.
snmp_sess_init( &snmp_session_data ); snmp_session_data.peername = host_addr; // trap receiver ip addr snmp_session_data.version = SNMP_VERSION_2c; snmp_session_data.community_len = SNMP_DEFAULT_COMMUNITY_LEN; snmp_session_data.retries = SNMP_DEFAULT_RETRIES; snmp_session_data.timeout = SNMP_DEFAULT_TIMEOUT; snmp_session_data.local_port = SNMP_TRAP_PORT; snmp_session_data.callback = snmpTrapInput; snmp_session_data.callback_magic = NULL; snmp_session_data.authenticator = NULL; snmp_session_data.isAuthoritative = SNMP_SESS_UNKNOWNAUTH;
psnmp_session_data = snmp_open(&snmp_session_data);
if ( psnmp_session_data == NULL) {
snmp_sess_perror("snmptrapd", psnmp_session_data);
SOCK_CLEANUP;
return 3;
}while (trap_running) {
numfds = 0;
FD_ZERO(&fdset);
block = 1;
tvp = &timeout;
snmp_select_info(&numfds, &fdset, tvp, &block);count = select(numfds, &fdset, 0, 0, block ? NULL : &timeout);
if (count > 0){
cout << " Session::listenTrapCallbackForever: read something ................... " << endl;
snmp_read(&fdset);
}
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