rustls: make read_file_into not reject good files #19104
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For files with sizes using an exact multiple of 256 bytes, the final successful read(s) filled the buffer(s) and the subsequent fread returned 0 for EOF, which caused read_file_into to fail. Now, it needs to return 0 and not be EOF to be an error. Pointed out by ZeroPath
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For files with sizes using an exact multiple of 256 bytes, the final successful read(s) filled the buffer(s) and the subsequent fread returned 0 for EOF, which caused read_file_into to fail.
Now, it needs to return 0 and not be EOF to be an error.
Pointed out by ZeroPath