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rust-secp256k1-unsafe-fast/secp256k1-sys
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Andrew Poelstra 8ab0bbccbc
Merge rust-bitcoin/rust-secp256k1#535: call the alloc error handle if we get NULL from the allocator 
8b17fc016d call the alloc error handle if we get NULL from the allocator (Elichai Turkel)

Pull request description:

  Found that this was missing in this discussion: https://github.com/rust-bitcoin/rust-secp256k1/issues/529#issuecomment-1324832163

  It is documented here that it returns a NULL on memory exhaustion: https://doc.rust-lang.org/alloc/alloc/trait.GlobalAlloc.html#tymethod.alloc
  And you can see that this is called in this example: https://doc.rust-lang.org/alloc/alloc/fn.alloc.html
  Docs for the handle itself: https://doc.rust-lang.org/alloc/alloc/fn.handle_alloc_error.html

ACKs for top commit:
  apoelstra:
    ACK 8b17fc016d
  Kixunil:
    Good argument, ACK 8b17fc016d

Tree-SHA512: 4b8f79ab5f691cb92621a314ceb8556c26fa7e159de359697b766043a0269e1ecf9746e6d4bfd5b45f18bccaff435c1fff491168b8bb77459ae849c38664d563
 		2022-11-24 15:38:26 +00:00
..
depend secp-sys: change symbol names to `0_6_1` from `0_5_0` 2022-10-08 15:43:43 +00:00
src Merge rust-bitcoin/rust-secp256k1#535: call the alloc error handle if we get NULL from the allocator 2022-11-24 15:38:26 +00:00
wasm Move WASM const definitions to a source file 2022-03-30 10:22:37 +11:00
CHANGELOG.md secp256k1-sys: bump version to 0.6.0 2022-06-21 20:37:45 +00:00
Cargo.toml secp-sys: change symbol names to `0_6_1` from `0_5_0` 2022-10-08 15:43:43 +00:00
LICENSE Add secp256k1-sys README and LICENSE files 2019-11-27 21:02:44 +00:00
README.md replace cargo `external-symbols` feature with a rustc --cfg flag 2020-12-22 15:35:16 +00:00
build.rs secp256k1-sys: Remove unused flags in build.rs 2022-11-24 13:38:40 +02:00
vendor-libsecp.sh Update Cargo.toml link in vendor script 2019-12-11 15:54:30 +00:00

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.