vdumplog.C

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// Copyright (C) 2001, Compaq Computer Corporation
// 
// This file is part of Vesta.
// 
// Vesta is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// Vesta is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with Vesta; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

//
// Dump the contents of a log
//

#include "VestaLog.H"
#include <stdlib.h>
extern "C" {
#include <getopt.h>
}

using std::cin;
using std::cout;
using std::cerr;
using std::endl;

char* program_name;

void
Usage()
{
    cerr << "Usage: " << program_name << " [-n lognum] [-l] [logdir]" << endl;
    exit(2);
}

int
main(int argc, char* argv[]) 
{
    int lognum = -1;
    bool loop = false;  // loop through logfiles >= lognum
    VestaLog VRLog;

    program_name = argv[0];

    int c;
    for (;;) {
        c = getopt(argc, argv, "n:l");
        if (c == EOF) break;
        switch (c) {
          case 'n':
            lognum = strtol(optarg, NULL, 0);
            break;
          case 'l':
            loop = true;
            break;
          case '?':
          default:
            Usage();
        }
    }

    char* dir;
    switch (argc - optind) {
      case 0:
        dir = ".";
        break;
      case 1:
        dir = argv[optind];
        break;
      default:
        Usage();
    }

    try {
        VRLog.open(dir, lognum, true);
    } catch (VestaLog::Error) {
        cerr << program_name << ": error opening log\n";
        exit(1);
    }

    for (;;) {
        char c;

        try {
            VRLog.get(c);
            cout.put(c);
        } catch (VestaLog::Error) {
            cerr << program_name << ": error getting character from log\n";
            exit(1);
        } catch (VestaLog::Eof) {
            if (!loop || !VRLog.nextLog()) break;
        }
    }
    VRLog.close();

    return 0;
}

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