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53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
#include "crucible/fd.h"
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#include "crucible/fs.h"
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#include "crucible/error.h"
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#include "crucible/string.h"
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#include <iostream>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <unistd.h>
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using namespace crucible;
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using namespace std;
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int
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main(int argc, char **argv)
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{
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catch_all([&]() {
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THROW_CHECK1(invalid_argument, argc, argc > 1);
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string filename = argv[1];
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cout << "File: " << filename << endl;
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Fd fd = open_or_die(filename, O_RDONLY);
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Fiemap fm;
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fm.m_max_count = 100;
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if (argc > 2) { fm.fm_start = stoull(argv[2], nullptr, 0); }
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if (argc > 3) { fm.fm_length = stoull(argv[3], nullptr, 0); }
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if (argc > 4) { fm.fm_flags = stoull(argv[4], nullptr, 0); }
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fm.fm_length = min(fm.fm_length, FIEMAP_MAX_OFFSET - fm.fm_start);
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uint64_t stop_at = fm.fm_start + fm.fm_length;
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uint64_t last_byte = fm.fm_start;
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do {
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fm.do_ioctl(fd);
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// cerr << fm;
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uint64_t last_logical = FIEMAP_MAX_OFFSET;
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for (auto &extent : fm.m_extents) {
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if (extent.fe_logical > last_byte) {
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cout << "Log " << to_hex(last_byte) << ".." << to_hex(extent.fe_logical) << " Hole" << endl;
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}
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cout << "Log " << to_hex(extent.fe_logical) << ".." << to_hex(extent.fe_logical + extent.fe_length)
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<< " Phy " << to_hex(extent.fe_physical) << ".." << to_hex(extent.fe_physical + extent.fe_length)
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<< " Flags " << fiemap_extent_flags_ntoa(extent.fe_flags) << endl;
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last_logical = extent.fe_logical + extent.fe_length;
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last_byte = last_logical;
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}
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fm.fm_start = last_logical;
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} while (fm.fm_start < stop_at);
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});
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exit(EXIT_SUCCESS);
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}
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