mafintosh / mafintosh/protocol-buffers

encoding an out-of-range integer results in a corrupt message

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Dominant language
JavaScript
Stars
760
Forks
75
PR merge metrics
No merged PRs in 30d

Description

Example:

var pb = require('protocol-buffers')
var m = pb("message Test1 { required int32 a = 1; }")
console.log(m.Test1.encode({a: 1e50}))

gives me: <Buffer 08 80 80 80 80 80 80 80 80 80 80> which looks like a corrupt message.

If you try to decode it, it hangs in an infinite loop.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by running the Node.js reproduction using the Test1.encode and decode calls shown in the issue. Trace the encoding and decoding paths for the int32 field and add coverage for the out-of-range value; done means the input no longer produces a corrupt message and decoding does not hang.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, node.js
Domain
backend-api-design
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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