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https://github.com/RGBCube/serenity
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db929e0fcf
Previously, attempting to update an ext2 inode with a UID or GID larger than 65535 would overflow. We now write the high bits of UIDs and GIDs to the same place that Linux does within the `osd2` struct.
31 lines
697 B
C++
31 lines
697 B
C++
/*
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* Copyright (c) 2023, Tim Ledbetter <timledbetter@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <fcntl.h>
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#include <unistd.h>
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TEST_CASE(test_uid_and_gid_high_bits_are_set)
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{
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static constexpr auto TEST_FILE_PATH = "/home/anon/.ext2_test";
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auto uid = geteuid();
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EXPECT_EQ(uid, 0u);
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auto fd = open(TEST_FILE_PATH, O_CREAT);
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auto cleanup_guard = ScopeGuard([&] {
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close(fd);
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unlink(TEST_FILE_PATH);
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});
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EXPECT_EQ(setuid(0), 0);
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EXPECT_EQ(fchown(fd, 65536, 65536), 0);
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struct stat st;
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EXPECT_EQ(fstat(fd, &st), 0);
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EXPECT_EQ(st.st_uid, 65536u);
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EXPECT_EQ(st.st_gid, 65536u);
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}
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