demo/demo_module_8/demo_module_8.c

/*
 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
 *
 * U.S. Government Rights - Commercial software. Government users are subject
 * to the Sun Microsystems, Inc. standard license agreement and applicable
 * provisions of the FAR and its supplements.
 *
 *
 * This distribution may include materials developed by third parties. Sun,
 * Sun Microsystems, the Sun logo and Solaris are trademarks or registered
 * trademarks of Sun Microsystems, Inc. in the U.S. and other countries.
 *
 */

#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <signal.h>

#include <me1LoadGroup.h>

static int keep_running;

RETSIGTYPE
stop_server(int a)
{
    keep_running = 0;
}

int
main(int argc, char **argv)
{
    int agentx_subagent = 1;
    //Change to make an SNMP master agent

    /* print log errors to stderr */
        snmp_enable_stderrlog();

    /* we're an agentx subagent? */
    if (agentx_subagent) {
        /*
         * This is an agentx client. Specify 0 for
         * NETSNMP_DS_AGENT_ROLE if the agent is master agent.
         * Specify 1 for NETSNMP_DS_AGENT_ROLE, if the agent is a
         * client.
         */
        netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
                NETSNMP_DS_AGENT_ROLE, 1);
        DEBUGMSGTL(("demo_module_8",
                "NETSNMP_DS_APPLICATION_ID = %s:\n",
                NETSNMP_DS_APPLICATION_ID));
        DEBUGMSGTL(("demo_module_8", "NETSNMP_DS_AGENT_ROLE = %s:\n",
                NETSNMP_DS_AGENT_ROLE));
    }
    /*
     * Initializes the embedded agent.  Call this function before the
     * init_snmp() call. The string name specifies which .conf file to
     * read when init_snmp() is called later.
     */
    init_agent("demo_module_8");
    DEBUGMSGTL(("demo_module_8", "CALLING init_agent\n"));

    /* initialize mib code here */

    /* mib code: init_me1LoadGroup from me1LoadGroup.c */
    init_me1LoadGroup();

    /*
     * Initializes the SNMP library, which causes the agent to read your
     * application's configuration files. The agent first tries to read
     * the configuration files named by the string passed as an argument.
     * You might use this to configure  access  control, for example.
     */
    init_snmp("demo_module_8");

    /*
     * Initializes the master agent and causes it to listen for SNMP
     * requests on its default UDP port of 161. Open the port to listen
     * (defaults to udp: 161)
     */
    if (!agentx_subagent)
        init_master_agent();

    /* In case we get a request to stop (kill -TERM or kill -INT) */
    keep_running = 1;
    signal(SIGTERM, stop_server);
    signal(SIGINT, stop_server);

    /*
     * The main loop. If you use select(), see snmp_select_info() in
     * snmp_api(3). This checks for packets arriving on the SNMP port and
     * processes them if some are found. If block is non zero, the
     * function call blocks until a packet arrives or an alarm must be
     * run (see snmp_alarm(3)).
     *
     * The return value from this function is a positive integer if packets
     * were processed, zero if an alarm occurre, and -1 if an error
     * occured.
     */

    while (keep_running) {
        /* OR */
        agent_check_and_process(1); /* 0 == don't block */
    }
    /*
     * Shuts down the agent, saving any needed persistent storage.
     */
    snmp_shutdown("demo_module_8");
}