49 lines
1.4 KiB
Rust
49 lines
1.4 KiB
Rust
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//! @brief Example Rust-based BPF program that tests duplicate accounts passed via accounts
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extern crate solana_sdk;
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use solana_sdk::{
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account_info::AccountInfo, entrypoint, entrypoint::SUCCESS, info, pubkey::Pubkey,
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};
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entrypoint!(process_instruction);
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fn process_instruction(_program_id: &Pubkey, accounts: &mut [AccountInfo], data: &[u8]) -> u32 {
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const FAILURE: u32 = 1;
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match data[0] {
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1 => {
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info!("modify first account data");
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accounts[2].data[0] = 1;
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}
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2 => {
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info!("modify first account data");
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accounts[3].data[0] = 2;
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}
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3 => {
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info!("modify both account data, should fail");
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accounts[2].data[0] = 1;
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accounts[3].data[0] = 2;
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}
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4 => {
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info!("modify first account lamports");
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*accounts[1].lamports -= 1;
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*accounts[2].lamports += 1;
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}
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5 => {
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info!("modify first account lamports");
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*accounts[1].lamports -= 2;
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*accounts[3].lamports += 2;
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}
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6 => {
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info!("modify both account lamports, should fail");
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*accounts[1].lamports -= 1;
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*accounts[2].lamports += 1;
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*accounts[3].lamports += 2;
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}
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_ => {
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info!("Unrecognized command");
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return FAILURE;
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}
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}
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SUCCESS
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}
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