This commit reverts back to exposing the global variable
BUILD_SHARED_LIBS.
Since building static libraries are the default for CMake
(i.e. BUILD_SHARED_LIBS=OFF) the option to build both static and shared
libraries were moved into a conditional option. So the option
PUGIXML_BUILD_SHARED_AND_STATIC is now only visible when the global
BUILD_SHARED_LIBS variable is set to ON.
The change also prevents the case were the user first enables
BUILD_SHARED_LIBS and then enables PUGIXML_BUILD_SHARED_AND_STATIC to
then again disable BUILD_SHARED_LIBS.
Replace `add_definitions` with `target_compile_definitions` for
specified targets. Multiple options are separated using the
`separate_arguments` function, which converts any string using
space-separated arguments into a semicolon-separated list.
The ability to use custom build defines were removed in commit:
1c5a0bb32583fd294022e68e66b541bf6ff71a67
This commit will reintroduce this feature, but using a prefixed variable
name.
Added PUGIXML as prefix to all CMake options to avoid naming collisions
with downstream projects.
Removed the cached variable BUILD_DEFINES, since it was unused.
Previously when copying the allocator state we would copy an incorrect
root pointer into the document's current state; while this had a minimal
impact on the allocation state due to the fact that any new allocation
would need to create a new page, this used a potentially stale field of
the moved document when setting up new pages, which could create issues
in future uses of the pages.
This change fixes the core problem and also removes the use of the
_root->allocator from allocate_page since it's not clear why we need it
there in the first place.
Since foo//bar//baz adds two nodes for each //, we need to increment the
depth by 2 on each iteration to limit the AST correctly.
Fixes the stack overflow found by cluster-fuzz (I suspect the issue
there is a bit deeper, but this part is definitely a bug and as such I'd
rather wait for the next test case for now).
We now use open_file similarly to open_file_wide, and activate the
workaround for MSVC 2005+ since that's when the _s versions were added
in the first place.
Function call arguments are stored in a list which is processed
recursively during optimize(). We now limit the depth of this construct
as well to make sure optimize() doesn't run out of stack space.
The default stack on MSVC/x64/debug is sufficient for 1692 nested
invocations only, whereas on clang/linux it's ~8K...
For now set the limit to be conservative.
XPath parser and execution engine isn't stackless; the depth of the
query controls the amount of C stack space required.
This change instruments places in the parser where the control flow can
recurse, requiring too much C stack space to produce an AST, or where a
stackless parse is used to produce arbitrarily deep AST which will
create issues for downstream processing.
As a result XPath parser should now be fuzz safe for malicious inputs.
