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common/shutdown_scriptpubkey: extract shutdown scriptpubkey test.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell
2021-02-19 14:52:01 +10:30
parent ebb1b19c65
commit 66dda32da2
5 changed files with 35 additions and 15 deletions
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common/shutdown_scriptpubkey.h Normal file
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#ifndef LIGHTNING_COMMON_SHUTDOWN_SCRIPTPUBKEY_H
#define LIGHTNING_COMMON_SHUTDOWN_SCRIPTPUBKEY_H
#include "config.h"
#include <ccan/short_types/short_types.h>
/* BOLT #2:
*
* 1. `OP_DUP` `OP_HASH160` `20` 20-bytes `OP_EQUALVERIFY` `OP_CHECKSIG`
* (pay to pubkey hash), OR
* 2. `OP_HASH160` `20` 20-bytes `OP_EQUAL` (pay to script hash), OR
* 3. `OP_0` `20` 20-bytes (version 0 pay to witness pubkey), OR
* 4. `OP_0` `32` 32-bytes (version 0 pay to witness script hash)
*
* A receiving node:
*...
* - if the `scriptpubkey` is not in one of the above forms:
* - SHOULD fail the connection.
*/
bool valid_shutdown_scriptpubkey(const u8 *scriptpubkey);
#endif /* LIGHTNING_COMMON_SHUTDOWN_SCRIPTPUBKEY_H */