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FRDU:IsValidFriendCode (edit)

Revision as of 18:18, 14 December 2024

20 bytes removed ,  14 December
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=Request=
 
=Request=
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{| class="wikitable" border="1"
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{{IPC/Request}}
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|-
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{{IPC/RequestHeader|0x0026|2|0}}
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!  Index Word
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{{IPC/RequestEntryRange|2|u64, Friend Code}}
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!  Description
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{{IPC/RequestEnd}}
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|-
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| 0
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| Header code [0x00260080]
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|-
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| 1-2
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| (u64) friend code to validate
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|}
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The friend code can be derived from the textual form of "1234-5678-9012" by stripping the slashes and then converting the string to an integer.
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=Response=
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{{IPC/Request}}
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{{#vardefine:ipc_offset|0}}
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{{IPC/RequestHeader|0x0026|2|0}}
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{{IPC/RequestEntry|Result code}}
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{{IPC/RequestEntry|bool, IsValidFriendCode}}
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{{IPC/RequestEnd}}
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=Description=
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Returns whether or not the given friend code is valid. The following logic is used (everything is in little-endian byte order):
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<code>
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is_valid = friend_code != 0 &&
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This function just calls [[FRDU:PrincipalIdToFriendCode]] with the lower half of the friend code and checks if the checksum byte returned matches the input.
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(u32)(friend_code >> 32) <= 127 &&
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=Response=
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[[FRDU:PrincipalIdToFriendCode]]((u32)(friend_code & 0xFFFFFFFF)) == friend_code
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{| class="wikitable" border="1"
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</code>
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|-
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!  Index Word
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!  Description
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|-
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| 0
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| Header code
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|-
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| 1
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| Result code
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|-
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| 2
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| 1 if the provided friend code is valid, 0 otherwise
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|}
 
TimmSkiller
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Retrieved from "https://www.3dbrew.org/wiki/Special:MobileDiff/22890"