Can a contract with no payable function have ether?
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The question in the title says it all.
To the best of my understanding, the only way to deposit ether into a contract is by calling a payable function, and set msg.value larger than 0 (and of course, the function should complete successfully without reverting).
But if there are no payable functions to begin with, is it ever possible that the ether balance of the contract will be larger than 0?
Thank you!
solidity ether balances payable
asked 14 hours ago
goodvibration
2,486721
add a comment |
up vote
5
down vote
favorite
The question in the title says it all.
To the best of my understanding, the only way to deposit ether into a contract is by calling a payable function, and set msg.value larger than 0 (and of course, the function should complete successfully without reverting).
But if there are no payable functions to begin with, is it ever possible that the ether balance of the contract will be larger than 0?
Thank you!
solidity ether balances payable
asked 14 hours ago
goodvibration
2,486721
add a comment |
up vote
5
down vote
favorite
up vote
5
down vote
favorite
The question in the title says it all.
To the best of my understanding, the only way to deposit ether into a contract is by calling a payable function, and set msg.value larger than 0 (and of course, the function should complete successfully without reverting).
But if there are no payable functions to begin with, is it ever possible that the ether balance of the contract will be larger than 0?
Thank you!
solidity ether balances payable
asked 14 hours ago
goodvibration
2,486721
The question in the title says it all.
To the best of my understanding, the only way to deposit ether into a contract is by calling a payable function, and set msg.value larger than 0 (and of course, the function should complete successfully without reverting).
But if there are no payable functions to begin with, is it ever possible that the ether balance of the contract will be larger than 0?
Thank you!
solidity ether balances payable
solidity ether balances payable
asked 14 hours ago
goodvibration
2,486721
asked 14 hours ago
goodvibration
2,486721
asked 14 hours ago
goodvibration
2,486721
asked 14 hours ago
goodvibration
2,486721
asked 14 hours ago
goodvibration
2,486721
2,486721
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
6
down vote
accepted
Yes, a contract can have Ether balance without any payable function.
There are three ways to do it:
1) selfdestruction. Another contract self destructrs and sends its remaining Ether to your contract
2) Target of mining. Ether rewarded from mining can't be refused.
3) Ether sent to the contract before the contract exists.
More details about these alternatives can found for example here: https://medium.com/@alexsherbuck/two-ways-to-force-ether-into-a-contract-1543c1311c56
answered 14 hours ago
Lauri Peltonen
4,3042322
Great, thank you! Question on bullet #3: So this is just "a long shot in the dark"? I send ether to some public address without knowing it's private key, and at a later point in time, somebody deploys a contract which happens to "fall" on the same address - is that correct, or have I misinterpreted you intention?
– goodvibration
13 hours ago
2
@goodvibration The chance of someone generating any completely random address (either through a private key or contract deployment) is incredibly small. However, contract addresses are not random, they are deterministic. For any given address, you can know in advance the contract addresses it will generate: ethereum.stackexchange.com/questions/9776/…
– Jesse Busman
11 hours ago
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
6
down vote
accepted
Yes, a contract can have Ether balance without any payable function.
There are three ways to do it:
1) selfdestruction. Another contract self destructrs and sends its remaining Ether to your contract
2) Target of mining. Ether rewarded from mining can't be refused.
3) Ether sent to the contract before the contract exists.
More details about these alternatives can found for example here: https://medium.com/@alexsherbuck/two-ways-to-force-ether-into-a-contract-1543c1311c56
answered 14 hours ago
Lauri Peltonen
4,3042322
Great, thank you! Question on bullet #3: So this is just "a long shot in the dark"? I send ether to some public address without knowing it's private key, and at a later point in time, somebody deploys a contract which happens to "fall" on the same address - is that correct, or have I misinterpreted you intention?
– goodvibration
13 hours ago
2
@goodvibration The chance of someone generating any completely random address (either through a private key or contract deployment) is incredibly small. However, contract addresses are not random, they are deterministic. For any given address, you can know in advance the contract addresses it will generate: ethereum.stackexchange.com/questions/9776/…
– Jesse Busman
11 hours ago
add a comment |
up vote
6
down vote
accepted
Yes, a contract can have Ether balance without any payable function.
There are three ways to do it:
1) selfdestruction. Another contract self destructrs and sends its remaining Ether to your contract
2) Target of mining. Ether rewarded from mining can't be refused.
3) Ether sent to the contract before the contract exists.
More details about these alternatives can found for example here: https://medium.com/@alexsherbuck/two-ways-to-force-ether-into-a-contract-1543c1311c56
answered 14 hours ago
Lauri Peltonen
4,3042322
Great, thank you! Question on bullet #3: So this is just "a long shot in the dark"? I send ether to some public address without knowing it's private key, and at a later point in time, somebody deploys a contract which happens to "fall" on the same address - is that correct, or have I misinterpreted you intention?
– goodvibration
13 hours ago
2
@goodvibration The chance of someone generating any completely random address (either through a private key or contract deployment) is incredibly small. However, contract addresses are not random, they are deterministic. For any given address, you can know in advance the contract addresses it will generate: ethereum.stackexchange.com/questions/9776/…
– Jesse Busman
11 hours ago
add a comment |
up vote
6
down vote
accepted
up vote
6
down vote
accepted
Yes, a contract can have Ether balance without any payable function.
There are three ways to do it:
1) selfdestruction. Another contract self destructrs and sends its remaining Ether to your contract
2) Target of mining. Ether rewarded from mining can't be refused.
3) Ether sent to the contract before the contract exists.
More details about these alternatives can found for example here: https://medium.com/@alexsherbuck/two-ways-to-force-ether-into-a-contract-1543c1311c56
answered 14 hours ago
Lauri Peltonen
4,3042322
Yes, a contract can have Ether balance without any payable function.
There are three ways to do it:
1) selfdestruction. Another contract self destructrs and sends its remaining Ether to your contract
2) Target of mining. Ether rewarded from mining can't be refused.
3) Ether sent to the contract before the contract exists.
More details about these alternatives can found for example here: https://medium.com/@alexsherbuck/two-ways-to-force-ether-into-a-contract-1543c1311c56
answered 14 hours ago
Lauri Peltonen
4,3042322
answered 14 hours ago
Lauri Peltonen
4,3042322
answered 14 hours ago
Lauri Peltonen
4,3042322
answered 14 hours ago
Lauri Peltonen
4,3042322
4,3042322
Great, thank you! Question on bullet #3: So this is just "a long shot in the dark"? I send ether to some public address without knowing it's private key, and at a later point in time, somebody deploys a contract which happens to "fall" on the same address - is that correct, or have I misinterpreted you intention?
– goodvibration
13 hours ago
2
@goodvibration The chance of someone generating any completely random address (either through a private key or contract deployment) is incredibly small. However, contract addresses are not random, they are deterministic. For any given address, you can know in advance the contract addresses it will generate: ethereum.stackexchange.com/questions/9776/…
– Jesse Busman
11 hours ago
add a comment |
Great, thank you! Question on bullet #3: So this is just "a long shot in the dark"? I send ether to some public address without knowing it's private key, and at a later point in time, somebody deploys a contract which happens to "fall" on the same address - is that correct, or have I misinterpreted you intention?
– goodvibration
13 hours ago
2
@goodvibration The chance of someone generating any completely random address (either through a private key or contract deployment) is incredibly small. However, contract addresses are not random, they are deterministic. For any given address, you can know in advance the contract addresses it will generate: ethereum.stackexchange.com/questions/9776/…
– Jesse Busman
11 hours ago
Great, thank you! Question on bullet #3: So this is just "a long shot in the dark"? I send ether to some public address without knowing it's private key, and at a later point in time, somebody deploys a contract which happens to "fall" on the same address - is that correct, or have I misinterpreted you intention?
– goodvibration
13 hours ago
Great, thank you! Question on bullet #3: So this is just "a long shot in the dark"? I send ether to some public address without knowing it's private key, and at a later point in time, somebody deploys a contract which happens to "fall" on the same address - is that correct, or have I misinterpreted you intention?
– goodvibration
13 hours ago
2
2
@goodvibration The chance of someone generating any completely random address (either through a private key or contract deployment) is incredibly small. However, contract addresses are not random, they are deterministic. For any given address, you can know in advance the contract addresses it will generate: ethereum.stackexchange.com/questions/9776/…
– Jesse Busman
11 hours ago
@goodvibration The chance of someone generating any completely random address (either through a private key or contract deployment) is incredibly small. However, contract addresses are not random, they are deterministic. For any given address, you can know in advance the contract addresses it will generate: ethereum.stackexchange.com/questions/9776/…
– Jesse Busman
11 hours ago
add a comment |
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