104 lines
2.4 KiB
C++
104 lines
2.4 KiB
C++
#include <iostream>
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#include <getopt.h>
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#include <libgen.h>
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#include <sstream>
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#include <vector>
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#include "version.h"
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#include "persistent-data/range.h"
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#include "thin-provisioning/superblock.h"
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#include "thin-provisioning/mapping_tree.h"
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using namespace std;
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using namespace thin_provisioning;
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//----------------------------------------------------------------
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namespace {
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typedef range<block_address> region;
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int rmap(string const &path, vector<region> const ®ions) {
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cerr << "Not implemented" << endl;
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return 0;
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}
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region parse_region(string const &str) {
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istringstream in(str);
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char dots[2] = {'\0', '\0'};
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block_address begin, end;
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in >> begin;
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in.read(dots, sizeof(dots));
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if (dots[0] != '.' || dots[1] != '.')
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throw runtime_error("badly formed region (no dots)");
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in >> end;
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if (in.fail())
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throw runtime_error("badly formed region (couldn't parse numbers)");
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if (end <= begin)
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throw runtime_error("badly formed region (end <= begin)");
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return region(begin, end);
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};
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void usage(ostream &out, string const &cmd) {
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out << "Usage: " << cmd << " [options] {device|file}" << endl
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<< "Options:" << endl
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<< " {-h|--help}" << endl
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<< " {-V|--version}" << endl
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<< " {--region <block range>}*" << endl
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<< "Where:" << endl
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<< " <block range> is of the form <begin>..<one-past-the-end>" << endl
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<< " for example 5..45 denotes blocks 5 to 44 inclusive, but not block 45" << endl;
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}
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}
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//----------------------------------------------------------------
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int main(int argc, char **argv)
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{
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int c;
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vector<region> regions;
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char const shortopts[] = "hV";
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option const longopts[] = {
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{ "help", no_argument, NULL, 'h'},
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{ "version", no_argument, NULL, 'V'},
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{ "region", required_argument, NULL, 1},
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{ NULL, no_argument, NULL, 0 }
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};
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while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
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switch (c) {
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case 'h':
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usage(cout, basename(argv[0]));
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return 0;
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case 'V':
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cout << THIN_PROVISIONING_TOOLS_VERSION << endl;
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return 0;
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case 1:
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// region
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regions.push_back(parse_region(optarg));
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break;
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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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}
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if (argc == optind) {
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cerr << "No input file provided." << endl;
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usage(cerr, basename(argv[0]));
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exit(1);
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}
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return rmap(argv[optind], regions);
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}
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//----------------------------------------------------------------
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