9b07e8e8c5
Currently we expect non-null pointers when we take `*mut T` parameters, however we do not check that the pointers are non-null because we never set VERIFY in our C build. We can use the `NonNull` type to enforce no-null-ness as long as we use `NonNull::new`. In a couple of instances we manually check that a buffer is not empty and therefore that the pointer to it is non-null so we can safely use `NonNull::new_unchecked`. Replace mutable pointer parameters `*mut T` (e.g. `*mut c_void`) and return types with `NonNull<T>`. Fix #546 |
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| .. | ||
| depend | ||
| src | ||
| wasm | ||
| CHANGELOG.md | ||
| Cargo.toml | ||
| LICENSE | ||
| README.md | ||
| build.rs | ||
| vendor-libsecp.sh | ||
README.md
secp256k1-sys
This crate provides Rust definitions for the FFI structures and methods.
Vendoring
The default build process is to build using the vendored libsecp256k1 sources in
the depend folder. These sources are prefixed with a special
rust-secp256k1-sys-specific prefix rustsecp256k1_v1_2_3_.
This prefix ensures that no symbol collision can happen:
- when a Rust project has two different versions of rust-secp256k1 in its depepdency tree, or
- when rust-secp256k1 is used for building a static library in a context where existing libsecp256k1 symbols are already linked.
To update the vendored sources, use the vendor-libsecp.sh script:
$ ./vendor-libsecp.sh depend <version-code> <rev>
- Where
<version-code>is the secp256k1-sys version number underscored:0_1_2. - Where
<rev>is the git revision of libsecp256k1 to checkout.
Linking to external symbols
If you want to compile this library without using the bundled symbols (which may
be required for integration into other build systems), you can do so by adding
--cfg=rust_secp_no_symbol_renaming' to your RUSTFLAGS variable.