git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: [PATCH 1/6] fetch-pack: buffer object-format with other args

From
JTJonathan Tan <jonathantanmy@google.com>
Date
Apr 9, 2021, 16:24 UTC
Message-ID
<20210409162417.2558134-1-jonathantanmy@google.com>
In-Reply-To
<xmqqy2dsnjuf.fsf@gitster.g>
Show 14 quoted lines
> Jonathan Tan <jonathantanmy@google.com> writes:
> 
> > In send_fetch_request(), "object-format" is written directly to the file
> > descriptor, as opposed to the other arguments, which are buffered.
> > Buffer "object-format" as well. "object-format" must be buffered; in
> > particular, it must appear after "command=fetch" in the request.
> >
> > This divergence was introduced in 4b831208bb ("fetch-pack: parse and
> > advertise the object-format capability", 2020-05-27), perhaps as an
> > oversight (the surrounding code at the point of this commit has already
> > been using a request buffer.)
> 
> Good find.  Did this actually resulted in a data corruption and that
> was how you discovered it?

No, I did not see any data corruption. I discovered it because I was looking at this function, thinking that I needed to refactor it.

Previous: Junio C HamanoNext: Jonathan Tan
Message 4 of 33 in “Push negotiation”
  1. 0/6 Push negotiationJonathan Tan, Apr 9, 2021
  2. 1/6 fetch-pack: buffer object-format with other argsJonathan Tan, Apr 9, 2021
  3. Junio C HamanoApr 9, 2021
  4. Jonathan TanApr 9, 2021
  5. 2/6 fetch-pack: refactor process_acks()Jonathan Tan, Apr 9, 2021
  6. Junio C HamanoApr 9, 2021
  7. Derrick StoleeMay 3, 2021
  8. 3/6 fetch-pack: refactor add_haves()Jonathan Tan, Apr 9, 2021
  9. Junio C HamanoApr 9, 2021
  10. 4/6 fetch-pack: refactor command and capability writeJonathan Tan, Apr 9, 2021
  11. Junio C HamanoApr 9, 2021
  12. 5/6 fetch: teach independent negotiation (no packfile)Jonathan Tan, Apr 9, 2021
  13. Junio C HamanoApr 9, 2021
  14. Jonathan TanApr 9, 2021
  15. Derrick StoleeMay 3, 2021
  16. Derrick StoleeMay 3, 2021
  17. Jonathan TanMay 3, 2021
  18. 6/6 send-pack: support push negotiationJonathan Tan, Apr 9, 2021
  19. Derrick StoleeMay 3, 2021
  20. Jonathan TanMay 3, 2021
  21. Derrick StoleeMay 4, 2021
  22. Junio C HamanoApr 30, 2021
  23. Derrick StoleeApr 30, 2021
  24. 0/5 Push negotiationJonathan Tan, May 4, 2021
  25. 1/5 fetch-pack: refactor process_acks()Jonathan Tan, May 4, 2021
  26. 2/5 fetch-pack: refactor add_haves()Jonathan Tan, May 4, 2021
  27. 3/5 fetch-pack: refactor command and capability writeJonathan Tan, May 4, 2021
  28. 4/5 fetch: teach independent negotiation (no packfile)Jonathan Tan, May 4, 2021
  29. Junio C HamanoMay 5, 2021
  30. Derrick StoleeMay 5, 2021
  31. Junio C HamanoMay 6, 2021
  32. Derrick StoleeMay 5, 2021
  33. 5/5 send-pack: support push negotiationJonathan Tan, May 4, 2021

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.