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#![doc(html_logo_url = "https://www.zfnd.org/images/zebra-icon.png")] #![doc(html_root_url = "https://docs.rs/zcash_script/0.1.5")] #![allow(non_upper_case_globals)] #![allow(non_camel_case_types)] #![allow(non_snake_case)] include!(concat!(env!("OUT_DIR"), "/bindings.rs")); mod blake2b; #[cfg(test)] mod tests { pub use super::zcash_script_error_t; use hex::FromHex; lazy_static::lazy_static! { pub static ref SCRIPT_PUBKEY: Vec<u8> = <Vec<u8>>::from_hex("76a914f47cac1e6fec195c055994e8064ffccce0044dd788ac").unwrap(); pub static ref SCRIPT_TX: Vec<u8> = <Vec<u8>>::from_hex("0400008085202f8901fcaf44919d4a17f6181a02a7ebe0420be6f7dad1ef86755b81d5a9567456653c010000006a473044022035224ed7276e61affd53315eca059c92876bc2df61d84277cafd7af61d4dbf4002203ed72ea497a9f6b38eb29df08e830d99e32377edb8a574b8a289024f0241d7c40121031f54b095eae066d96b2557c1f99e40e967978a5fd117465dbec0986ca74201a6feffffff020050d6dc0100000017a9141b8a9bda4b62cd0d0582b55455d0778c86f8628f870d03c812030000001976a914e4ff5512ffafe9287992a1cd177ca6e408e0300388ac62070d0095070d000000000000000000000000").expect("Block bytes are in valid hex representation"); } pub fn verify_script( script_pub_key: &[u8], amount: i64, tx_to: &[u8], nIn: u32, flags: u32, consensus_branch_id: u32, ) -> Result<(), zcash_script_error_t> { let script_ptr = script_pub_key.as_ptr(); let script_len = script_pub_key.len(); let tx_to_ptr = tx_to.as_ptr(); let tx_to_len = tx_to.len(); let mut err = 0; let ret = unsafe { super::zcash_script_verify( script_ptr, script_len as u32, amount, tx_to_ptr, tx_to_len as u32, nIn, flags, consensus_branch_id, &mut err, ) }; if ret == 1 { Ok(()) } else { Err(err) } } pub fn verify_script_precompute( script_pub_key: &[u8], amount: i64, tx_to: &[u8], nIn: u32, flags: u32, consensus_branch_id: u32, ) -> Result<(), zcash_script_error_t> { let script_ptr = script_pub_key.as_ptr(); let script_len = script_pub_key.len(); let tx_to_ptr = tx_to.as_ptr(); let tx_to_len = tx_to.len(); let mut err = 0; let precomputed = unsafe { super::zcash_script_new_precomputed_tx(tx_to_ptr, tx_to_len as _, &mut err) }; let ret = unsafe { super::zcash_script_verify_precomputed( precomputed, nIn, script_ptr, script_len as u32, amount, flags, consensus_branch_id, &mut err, ) }; unsafe { super::zcash_script_free_precomputed_tx(precomputed) }; if ret == 1 { Ok(()) } else { Err(err) } } #[test] fn it_works() { let coin = i64::pow(10, 8); let script_pub_key = &*SCRIPT_PUBKEY; let amount = 212 * coin; let tx_to = &*SCRIPT_TX; let nIn = 0; let flags = 1; let branch_id = 0x2bb40e60; verify_script(script_pub_key, amount, tx_to, nIn, flags, branch_id).unwrap(); } #[test] fn it_works_precomputed() { let coin = i64::pow(10, 8); let script_pub_key = &*SCRIPT_PUBKEY; let amount = 212 * coin; let tx_to = &*SCRIPT_TX; let nIn = 0; let flags = 1; let branch_id = 0x2bb40e60; verify_script_precompute(script_pub_key, amount, tx_to, nIn, flags, branch_id).unwrap(); } #[test] fn it_doesnt_work() { let coin = i64::pow(10, 8); let script_pub_key = &*SCRIPT_PUBKEY; let amount = 212 * coin; let tx_to = &*SCRIPT_TX; let nIn = 0; let flags = 1; let branch_id = 0x2bb40e61; verify_script(script_pub_key, amount, tx_to, nIn, flags, branch_id).unwrap_err(); } #[test] fn it_doesnt_work_precomputed() { let coin = i64::pow(10, 8); let script_pub_key = &*SCRIPT_PUBKEY; let amount = 212 * coin; let tx_to = &*SCRIPT_TX; let nIn = 0; let flags = 1; let branch_id = 0x2bb40e61; verify_script_precompute(script_pub_key, amount, tx_to, nIn, flags, branch_id).unwrap_err(); } }