Discourage the inclusion of private headers outside libpng
Add checks inside the private png*.h header files, in order to reduce
unintentional occurences of application backdoors.
Such backdoors might occur, for example, when we make changes to the
internal data structures that might somehow "leak" from the libpng
code into the user code. The applications that use the libpng API must
pretend not to know that these headers exist at all.
Co-authored-by: John Bowler <jbowler@acm.org>
Signed-off-by: John Bowler <jbowler@acm.org>
Signed-off-by: Cosmin Truta <ctruta@gmail.com>
4 files changed
