thin-provisioning-tools/thin_check.cc

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// Copyright (C) 2011 Red Hat, Inc. All rights reserved.
//
// This file is part of the thin-provisioning-tools source.
//
// thin-provisioning-tools is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// thin-provisioning-tools 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with thin-provisioning-tools. If not, see
// <http://www.gnu.org/licenses/>.
#include <iostream>
#include <getopt.h>
#include <libgen.h>
#include "metadata.h"
#include "metadata_checker.h"
#include "version.h"
using namespace persistent_data;
using namespace std;
using namespace thin_provisioning;
namespace {
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int check(string const &path, bool quiet) {
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try {
metadata::ptr md(new metadata(path, metadata::OPEN));
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optional<error_set::ptr> maybe_errors = metadata_check(md);
if (maybe_errors) {
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if (!quiet)
cerr << error_selector(*maybe_errors, 3);
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return 1;
}
} catch (std::exception &e) {
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if (!quiet)
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cerr << e.what() << endl;
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return 1;
}
return 0;
}
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void usage(ostream &out, string const &cmd) {
out << "Usage: " << cmd << " [options] {device|file}" << endl
<< "Options:" << endl
<< " {-q|--quiet}" << endl
<< " {-h|--help}" << endl
<< " {-V|--version}" << endl;
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}
}
int main(int argc, char **argv)
{
int c;
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bool quiet = false;
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const char shortopts[] = "qhV";
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const struct option longopts[] = {
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{ "quiet", no_argument, NULL, 'q'},
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{ "help", no_argument, NULL, 'h'},
{ "version", no_argument, NULL, 'V'},
{ NULL, no_argument, NULL, 0 }
};
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
switch(c) {
case 'h':
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usage(cout, basename(argv[0]));
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return 0;
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case 'q':
quiet = true;
break;
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case 'V':
cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
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return 0;
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default:
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usage(cerr, basename(argv[0]));
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return 1;
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}
}
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if (argc == optind) {
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cerr << "No input file provided." << endl;
usage(cerr, basename(argv[0]));
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exit(1);
}
return check(argv[optind], quiet);
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}