ACE/ASNMP/examples/get/get.cpp

   1
   2 //=============================================================================
   3 /**
   4  *  @file    get.cpp
   5  *
   6  *  Sample application demonstrating synchronous Snmp::get API
   7  *  to access an SNMP Version 1 agent.
   8  */
   9 //=============================================================================
  10
  11
  12 /*===================================================================
  13   Copyright (c) 1996
  14   Hewlett-Packard Company
  15
  16   ATTENTION: USE OF THIS SOFTWARE IS SUBJECT TO THE FOLLOWING TERMS.
  17   Permission to use, copy, modify, distribute and/or sell this software
  18   and/or its documentation is hereby granted without fee. User agrees
  19   to display the above copyright notice and this license notice in all
  20   copies of the software and any documentation of the software. User
  21   agrees to assume all liability for the use of the software; Hewlett-Packard
  22   makes no representations about the suitability of this software for any
  23   purpose. It is provided "AS-IS without warranty of any kind,either express
  24   or implied. User hereby grants a royalty-free license to any and all
  25   derivatives based upon this software code base.
  26 =====================================================================*/
  27
  28 #include "asnmp/snmp.h"
  29 #include "ace/Argv_Type_Converter.h"
  30 #include "ace/Get_Opt.h"
  31
  32 // FUZZ: disable check_for_streams_include
  33 #include "ace/streams.h"
  34
  35 //
  36 // SNMPv1 Get Application
  37 //
  38 class getapp {
  39 public:
  40   getapp(int argc, char **argv); // process command line args
  41   int valid() const;             // verify transaction can proceed
  42   int run();                     //  issue transaction
  43   static void usage();           // operator help message
  44
  45 private:
  46   getapp(const getapp&);
  47
  48   UdpAddress address_;
  49   Pdu pdu_;                                // construct a request Pdu
  50   Oid oid_;
  51   OctetStr community_;
  52   Snmp snmp_;
  53   UdpTarget target_;
  54   int valid_;
  55 };
  56
  57
  58 // main entry point
  59 int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
  60 {
  61   ACE_Argv_Type_Converter atc (argc, argv);
  62   getapp get (atc.get_argc (), atc.get_ASCII_argv ());
  63   if (get.valid())
  64      return get.run();
  65   else
  66     getapp::usage();
  67   return 1;
  68 }
  69
  70 int getapp::valid() const
  71 {
  72  return valid_;
  73 }
  74 getapp::getapp(int argc, char *argv[]): valid_(0)
  75 {
  76    Oid req, def_oid("1.3.6.1.2.1.1.1.0");      // default is sysDescr
  77    if ( argc < 2)
  78      return;
  79
  80    address_ = argv[argc - 1];
  81    if ( !address_.valid()) {
  82       cout << "ERROR: Invalid IPv4 address or DNS hostname: " \
  83      << argv[argc] << "\n";
  84       return;
  85    }
  86
  87    ACE_Argv_Type_Converter to_tchar (argc, argv);
  88    ACE_Get_Opt get_opt (argc,
  89                         to_tchar.get_TCHAR_argv (),
  90                         ACE_TEXT ("o:c:r:t:p:"));
  91    for (int c; (c = get_opt ()) != -1; )
  92      switch (c)
  93        {
  94        case 'o':
  95          req = ACE_TEXT_ALWAYS_CHAR (get_opt.opt_arg());
  96          if (req.valid() == 0)
  97          cout << "ERROR: oid value: "
  98               << ACE_TEXT_ALWAYS_CHAR (get_opt.opt_arg())
  99               << "is not valid. using default.\n";
 100          break;
 101
 102        case 'c':
 103          community_ = ACE_TEXT_ALWAYS_CHAR (get_opt.opt_arg());
 104          target_.set_read_community(community_);
 105          break;
 106
 107        case 'r':
 108          target_.set_retry(ACE_OS::atoi (get_opt.opt_arg()));
 109          break;
 110
 111        case 't':
 112          target_.set_timeout(ACE_OS::atoi (get_opt.opt_arg()));
 113          break;
 114
 115        default:
 116          break;
 117        }
 118
 119   Vb vb;                                  // construct a Vb object
 120   if (req.valid())
 121      vb.set_oid( req);                    // set the Oid portion of the Vb
 122   else {
 123      vb.set_oid( def_oid);               // set the Oid portion of the Vb
 124   }
 125   pdu_ += vb;
 126   vb.get_oid(oid_); // store for later use
 127   valid_ = 1;
 128 }
 129
 130 void getapp::usage()
 131 {
 132   cout << "Usage:\n";
 133   cout << "get [options] dotted-quad | DNSName[:port]\n";
 134   cout << "      -o OID defaults to 1.3.6.1.2.1.1.1.0 (mibII sysDescr.0)\n";
 135   cout << "      -c Community_name, default is 'public'\n";
 136   cout << "      -r N  retries default is N = 1 retry\n";
 137   cout << "      -t N  timeout in seconds default is 1 second" << endl;
 138 }
 139
 140
 141 int getapp::run()
 142 {
 143    //----------[ create a ASNMP session ]-----------------------------------
 144    if ( snmp_.valid() != SNMP_CLASS_SUCCESS) {
 145       cout << "\nASNMP:ERROR:Create session failed: "<<
 146           snmp_.error_string()<< "\n";
 147       return 1;
 148    }
 149
 150    //--------[ build up ASNMP object needed ]-------------------------------
 151    if (address_.get_port() == 0)
 152      address_.set_port(DEF_AGENT_PORT);
 153    target_.set_address( address_);         // make a target using the address
 154
 155    //-------[ issue the request, blocked mode ]-----------------------------
 156    cout << "\nASNMP:INFO:SNMP Version " << (target_.get_version()+ 1) << \
 157        " GET SAMPLE PROGRAM \nOID: " << oid_.to_string() << "\n";
 158    target_.get_address(address_); // target updates port used
 159    int rc;
 160    const char *name = address_.resolve_hostname(rc);
 161
 162    cout << "Device: " << address_ << " ";
 163
 164    //FUZZ: disable check_for_lack_ACE_OS
 165    cout << (rc ? "<< did not resolve via gethostbyname() >>" : name) << "\n";
 166    //FUZZ: enable check_for_lack_ACE_OS
 167
 168    cout << "[ Retries=" << target_.get_retry() << " \
 169         Timeout=" << target_.get_timeout() <<" ms " << "Community=" << \
 170          community_.to_string() << " ]"<< endl;
 171
 172    if (snmp_.get( pdu_, target_) == SNMP_CLASS_SUCCESS) {
 173        Vb vb;
 174       // check to see if there are any errors
 175       if (pdu_.get_error_status()) {
 176         cout << "ERROR: agent replied as follows\n";
 177         cout << pdu_.agent_error_reason() << endl;
 178       }
 179       else {
 180         VbIter iter(pdu_);
 181         while (iter.next(vb)) {
 182           cout << "\tOid = " << vb.to_string_oid() << "\n";
 183           cout << "\tValue = " << vb.to_string_value() << "\n";
 184        }
 185      }
 186    }
 187    else {
 188     const char *ptr = snmp_.error_string();
 189     cout << "ASNMP:ERROR: get command failed reason: " << ptr << endl;
 190   }
 191
 192   cout << "\nASNMP:INFO: command completed normally.\n"<< endl;
 193   return 0;
 194 }
 195