FSSH_SSIZE_MAX
if (length > FSSH_SSIZE_MAX)
bytesRead = FSSH_SSIZE_MAX;
if ((uint32_t)bytesRead + length > FSSH_SSIZE_MAX)
bytesRead = FSSH_SSIZE_MAX;
if (length > FSSH_SSIZE_MAX)
bytesWritten = FSSH_SSIZE_MAX;
if ((uint32_t)bytesWritten + length > FSSH_SSIZE_MAX)
bytesWritten = FSSH_SSIZE_MAX;