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glibc/libio/tst-fclose-unopened2.input

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Add another test for fclose on an unopened file Add new file libio/tst-fclose-unopened2.c that tests whether fclose on an unopened file returns EOF. This test differs from tst-fclose-unopened.c by ensuring the file's buffer is allocated prior to double-fclose. A comment in tst-fclose-unopened.c now clarifies that it is testing a file with an unallocated buffer. Calling fclose on unopened files normally causes a use-after-free bug, however the standard streams are an exception since they are not deallocated by fclose. Tested for x86_64. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2024-09-19 13:53:23 +00:00
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