Error Analysis: Errors of initiation of Solana tokens account
Solana is a blockchain platform known for its high performance and low latency transactions. However, despite its impressive features, there are scenarios in which the chip accounts can experience initialization errors when using the “tokenaccount” contract.
In this article, we will deepen the causes of these errors and provide guidance on how to solve them.
Symptoms of error
The error occurs due to an “init” call made in a token account, while the owner’s permission has been revoked. Specifically, when the user calls the Init function with the following code:
`Rust
Use solar_program :: {
Account_info :: {Next_account_info, Continfo},
Entrypoint :: programresult,
Msg,
Program_error :: Printer,
};
// ...
#[program]
Pub mod token {
Use super ::*;
pub fn init (
Owner: Accounts :: Accountinfo,
token_id: Accounts :: Pubkey,
_Token_pubkey: Accounts :: Pubkey,
) -> programresult {
// ...
be account_info = next_account_info (& mute owner);
If account_info.owner! = & owner {
Return ERR (printed :: new ("the owner provided is not allowed" .to_string ()));
}
// ...
}
}
Causes of error
The error occurs when theInit ‘function is trying to initialize a tokens account with an existing user, but the permission has been revoked. This can happen in several situations:
- Revocation of the owner : The owner’s permission is revoked during the program execution.
- The token initialization failure : The token account fails to be correctly initializes due to external factors, such as network problems or invalid data.
Resolution
To solve this error, you must make sure that the “init” feature checks the property before trying to initial a chip account. Here is an updated version of the code:
`Rust
Use solar_program :: {
Account_info :: {Next_account_info, Continfo},
Entrypoint :: programresult,
Msg,
Program_error :: Printer,
};
// ...
#[program]
Pub mod token {
Use super ::*;
pub fn init (
Owner: Accounts :: Accountinfo,
token_id: Accounts :: Pubkey,
_Token_pubkey: Accounts :: Pubkey,
) -> programresult {
// verify that the owner is still allowed to initiate the program
I! owner.try_into (). is_ok () || Next_account_info (& mute owner) .owner! = & Owner {
Return ERR (printed :: new ("the owner provided is not allowed" .to_string ()));
}
be account_info = next_account_info (& mute owner);
If account_info.owner! = & owner {
// ...
} else {
// initialize the token account
// ...
}
}
}
`
By adding a check for the property before trying to initialize the token account, you can prevent the “init” function from failing due to unauthorized access.
Conclusion
The initialization of tokens accounts on Solana can be difficult, and errors can occur when using the “tokenaccount” contract. By understanding the causes of these errors and implementing the necessary checks, you can make sure that your programs are working without problems and safely.
