/*  snmpGet.cpp   version 2.8  Copyright (c) 1999  Hewlett-Packard Company  ATTENTION: USE OF THIS SOFTWARE IS SUBJECT TO THE FOLLOWING TERMS.  Permission to use, copy, modify, distribute and/or sell this software  and/or its documentation is hereby granted without fee. User agrees  to display the above copyright notice and this license notice in all  copies of the software and any documentation of the software. User  agrees to assume all liability for the use of the software; Hewlett-Packard  makes no representations about the suitability of this software for any  purpose. It is provided "AS-IS" without warranty of any kind,either express  or implied. User hereby grants a royalty-free license to any and all  derivatives based upon this software code base.  Peter E. Mellquist*/#include "snmp_pp.h"#include <iostream.h>#include <stdlib.h>int main( int argc, char **argv)  {   //---------[ check the arg count ]----------------------------------------   if ( argc < 2) {	  cout << "Usage:\n";	  cout << "snmpGet Address | DNSName [Oid] [options]\n";	  cout << "Oid: sysDescr object is default\n";	  cout << "options: -v1 , use SNMPV1, default\n";	  cout << "         -v2 , use SNMPV2\n";	  cout << "         -cCommunity_name, specify community default is 'public' \n";	  cout << "         -rN , retries default is N = 1 retry\n";	  cout << "         -tN , timeout in hundredths-seconds default is N = 100 = 1 second\n";	  return 0;   }   //---------[ make a GenAddress and Oid object to retrieve ]---------------   GenAddress address( argv[1]);      // make a SNMP++ Generic address   if ( !address.valid()) {           // check validity of address	  cout << "Invalid Address or DNS Name, " << argv[1] << "\n";	  return 0;   }    Oid oid("1.3.6.1.2.1.1.1.0");      // defualt is sysDescr   if ( argc >= 3) {                  // if 3 args, then use the callers Oid	  if ( strstr( argv[2],"-")==0) {	     oid = argv[2];	     if ( !oid.valid()) {         // check validity of user oid		    cout << "Invalid Oid, " << argv[2] << "\n";		    return 0;         }      }   }   //---------[ determine options to use ]-----------------------------------   snmp_version version=version1;                       // default is v1   int retries=1;                                       // default retries is 1   int timeout=100;                                     // default is 1 second   OctetStr community("public");                        // community name   char *ptr;   for(int x=1;x<argc;x++) {                           // parse for version      if ( strstr( argv[x],"-v2")!= 0)            version = version2c;      if ( strstr( argv[x],"-r")!= 0) {                 // parse for retries         ptr = argv[x]; ptr++; ptr++;		 retries = atoi(ptr);		 if (( retries<1)|| (retries>5)) retries=1;       }	  if ( strstr( argv[x], "-t")!=0) {                 // parse for timeout		 ptr = argv[x]; ptr++; ptr++; 		 timeout = atoi( ptr);		 if (( timeout < 100)||( timeout>500)) timeout=100;      }	  if ( strstr( argv[x],"-c")!=0) {		 ptr = argv[x]; ptr++; ptr++;		 community = ptr;      }   }   //----------[ create a SNMP++ session ]-----------------------------------   int status;    Snmp snmp( status);                // check construction status   if ( status != SNMP_CLASS_SUCCESS) {      cout << "SNMP++ Session Create Fail, " << snmp.error_msg(status) << "\n";      return 0;   }   //--------[ build up SNMP++ object needed ]-------------------------------   Pdu pdu;                                // construct a Pdu object   Vb vb;                                  // construct a Vb object   vb.set_oid( oid);                       // set the Oid portion of the Vb   pdu += vb;                              // add the vb to the Pdu   CTarget target( address);               // make a target using the address   target.set_version( version);           // set the SNMP version SNMPV1 or V2   target.set_retry( retries);             // set the number of auto retries   target.set_timeout( timeout);           // set timeout   target.set_readcommunity( community);   // set read community   target.set_writecommunity( community);// set the write community name    //-------[ issue the request, blocked mode ]-----------------------------   cout << "SNMP++ Get to " << argv[1] << " SNMPV" << (version+1) << " Retries=" << retries;   cout << " Timeout=" << timeout <<"ms " << "Community=" << community.get_printable() << "\n";   if (( status = snmp.get( pdu,target))== SNMP_CLASS_SUCCESS) {	  pdu.get_vb( vb,0);	  cout << "Oid = " << vb.get_printable_oid() << "\n";	  cout << "Value = " << vb.get_printable_value() << "\n";   }   else {	  cout << "SNMP++ Get Error, ";      if ( status == SNMP_CLASS_ERR_STATUS_SET)	     status = pdu.get_error_status();      cout << snmp.error_msg( status) << "\n";   }   return 0;}  // end get