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fix(pcapng): string option lengths count characters, not octets #1276

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#1373
Closed
fix(pcapng): string option lengths count characters, not octets#1276
#1373
Labels
fixPull requests that fix a defect (fix: subject prefix)
Milestone
PyPCAPKit v1.5

Description

@JarryShaw
JarryShaw
opened on Oct 7, 2026

Describe the bug
The makers use length=len(str) (pcapkit/protocols/misc/pcapng.py:4284, :4343, :4374, :4687, :4780, :5141), so non-ASCII text is truncated on the wire.

To Reproduce
SHB opt_comment of é (01000200 c3a90000) parsed and rebuilt:

out ... 01000100 c3000000 ...

Expected behavior
Length is len(value.encode("utf-8")).

Found by the misc round-trip audit (#1202). The repro was re-checked by an independent verifier, and I re-ran it on main at 11ae68ebf.

Activity

  1. JarryShaw
    added
    fixPull requests that fix a defect (fix: subject prefix)
    pendingAccepted and unstarted - nobody is on it and nothing blocks it
    on Oct 7, 2026
  2. JarryShaw
    moved this to Pending in PyPCAPKiton Oct 7, 2026
  3. JarryShaw
    added this to PyPCAPKiton Oct 7, 2026

  4. JarryShaw commented on Oct 7, 2026

    @JarryShaw
    JarryShaw
    on Oct 7, 2026
    OwnerAuthor

    Blocked until the PCAP-NG K1-K5 PR (#1267-#1271) merges.

  5. JarryShaw
    added
    blockedDeferred pending another issue or decision; see the last comment for what unblocks it
    and removed
    pendingAccepted and unstarted - nobody is on it and nothing blocks it
    on Oct 7, 2026

  6. JarryShaw commented on Oct 7, 2026

    @JarryShaw
    JarryShaw
    on Oct 7, 2026
    OwnerAuthor

    Unblocked: #1339 merged at 20:42Z. Back to pending.

  7. JarryShaw
    added
    pendingAccepted and unstarted - nobody is on it and nothing blocks it
    wipWork in flight - a covering PR is open or an agent is actively on it
    and removed
    blockedDeferred pending another issue or decision; see the last comment for what unblocks it
    pendingAccepted and unstarted - nobody is on it and nothing blocks it
    on Oct 7, 2026
  8. JarryShaw
    closed this as completedin #1373on Oct 8, 2026
  9. JarryShaw
    added a commit that references this issue on Oct 8, 2026

    fix(pcapng): rebuilt blocks keep their lengths and padding (#1276, #1279

    0e25f9f
  10. github-project-automation
    moved this from WIP to Done in PyPCAPKiton Oct 8, 2026
  11. JarryShaw
    removed
    wipWork in flight - a covering PR is open or an agent is actively on it
    on Oct 8, 2026
  12. JarryShaw
    added this to the PyPCAPKit v1.5 milestone on Oct 25, 2026
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