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CDRIVER-5641: Build fix for _FORTIFY_SOURCE #1899

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Merged
1 commit merged into from
Mar 6, 2025
Merged

CDRIVER-5641: Build fix for _FORTIFY_SOURCE #1899

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14 changes: 12 additions & 2 deletions src/libbson/tests/test-bson-vector.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1379,14 +1379,24 @@ test_bson_vector_example_packed_bit_view (void)
} else \
((void) 0)

#if defined(__USE_FORTIFY_LEVEL) && __USE_FORTIFY_LEVEL > 0
// Prevent memcpy size overflows even in dead code
#define MAX_TESTABLE_COPY_COUNT (SIZE_MAX / 2u / sizeof (float))
#else
// Allow dead code to contain an oversized or overflowing memcpy
#define MAX_TESTABLE_COPY_COUNT SIZE_MAX
#endif

#define TEST_BSON_VECTOR_EDGE_CASES_RW_COMMON(_view, _alloc_size, _v, _v_size, _read, _write) \
if (true) { \
TEST_BSON_VECTOR_RW (false, (_view), (_v), (_alloc_size) + 1u, 0, (_read), (_write)); \
TEST_BSON_VECTOR_RW (true, (_view), (_v), (_v_size), (_alloc_size) - (_v_size), (_read), (_write)); \
TEST_BSON_VECTOR_RW (false, (_view), (_v), (_v_size), (_alloc_size) - (_v_size) + 1u, (_read), (_write)); \
TEST_BSON_VECTOR_RW (false, (_view), (_v), (_v_size) + 1u, (_alloc_size) - (_v_size), (_read), (_write)); \
TEST_BSON_VECTOR_RW (false, (_view), (_v), SIZE_MAX, (_alloc_size) - (_v_size), (_read), (_write)); \
TEST_BSON_VECTOR_RW (false, (_view), (_v), SIZE_MAX, (_alloc_size) - (_v_size) + 1u, (_read), (_write)); \
TEST_BSON_VECTOR_RW ( \
false, (_view), (_v), MAX_TESTABLE_COPY_COUNT, (_alloc_size) - (_v_size), (_read), (_write)); \
TEST_BSON_VECTOR_RW ( \
false, (_view), (_v), MAX_TESTABLE_COPY_COUNT, (_alloc_size) - (_v_size) + 1u, (_read), (_write)); \
TEST_BSON_VECTOR_RW (true, (_view), (_v), (_v_size), 0, (_read), (_write)); \
} else \
((void) 0)
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