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Re: [PATCH] mailinfo.c::convert_to_utf8: reuse strlen info

From
Junio C Hamano <gitster@pobox.com>
Date
Apr 18, 2020, 23:12 UTC
Message-ID
<xmqqk12ctmm1.fsf@gitster.c.googlers.com>
In-Reply-To
<CAN0heSppn6BBX4V1T1qgKc4XP+8i6qbcEqd1_3NqWQtZJLaJww@mail.gmail.com>
Martin Ågren <martin.agren@gmail.com> writes:
> This is equivalent as long as `line->len` is equal to
> `strlen(line->buf)`, which it will be (should be) because it's a
> strbuf. Ok.

For the guarantee to hold true, line->buf[0..line->len] should not have any '\0' byte in it.

This helper has two callers, but in either case, it needs to be prepared to work on output of decode_[bq]_segment(). Is there code anywhere that guarntees that the decoding won't stuff '\0' in the line?

Previous: Martin ÅgrenNext: Danh Doan
Message 20 of 39 in “mailinfo.c::convert_to_utf8: reuse strlen info”
  1. mailinfo.c::convert_to_utf8: reuse strlen infoĐoàn Trần Công Danh, Apr 18, 2020
  2. Martin ÅgrenApr 18, 2020
  3. 0/6 strbuf: simplify `strbuf_attach()` usageMartin Ågren, Apr 18, 2020
  4. 1/6 am: use `strbuf_attach()` correctlyMartin Ågren, Apr 18, 2020
  5. 2/6 strbuf_attach: correctly pass in `strlen() + 1` for `alloc`Martin Ågren, Apr 18, 2020
  6. 3/6 strbuf: use `strbuf_attach()` correctlyMartin Ågren, Apr 18, 2020
  7. 4/6 fast-import: avoid awkward use of `strbuf_attach()`Martin Ågren, Apr 18, 2020
  8. 5/6 rerere: avoid awkward use of `strbuf_attach()`Martin Ågren, Apr 18, 2020
  9. 6/6 strbuf: simplify `strbuf_attach()` usageMartin Ågren, Apr 18, 2020
  10. Martin ÅgrenApr 19, 2020
  11. 0/4 strbuf: fix doc for `strbuf_attach()` and avoid itMartin Ågren, Apr 19, 2020
  12. 1/4 strbuf: fix doc for `strbuf_attach()`Martin Ågren, Apr 19, 2020
  13. Junio C HamanoApr 20, 2020
  14. Martin ÅgrenApr 21, 2020
  15. 2/4 strbuf: introduce `strbuf_attachstr_len()`Martin Ågren, Apr 19, 2020
  16. 3/4 strbuf: introduce `strbuf_attachstr()`Martin Ågren, Apr 19, 2020
  17. Junio C HamanoApr 20, 2020
  18. Martin ÅgrenApr 21, 2020
  19. 4/4 strbuf_attach: prefer `strbuf_attachstr_len()`Martin Ågren, Apr 19, 2020
  20. Junio C HamanoApr 18, 2020
  21. Danh DoanApr 19, 2020
  22. Martin ÅgrenApr 19, 2020
  23. Junio C HamanoApr 19, 2020
  24. 0/3 mailinfo: disallow and complains about NUL characterĐoàn Trần Công Danh, Apr 19, 2020
  25. 1/3 t4254: merge 2 steps of a single testĐoàn Trần Công Danh, Apr 19, 2020
  26. Martin ÅgrenApr 19, 2020
  27. Danh DoanApr 19, 2020
  28. 3/3 mailinfo: disallow NUL character in mail's headerĐoàn Trần Công Danh, Apr 19, 2020
  29. Martin ÅgrenApr 19, 2020
  30. Danh DoanApr 19, 2020
  31. 2/3 mailinfo.c::convert_to_utf8: reuse strlen infoĐoàn Trần Công Danh, Apr 19, 2020
  32. Martin ÅgrenApr 19, 2020
  33. Danh DoanApr 19, 2020
  34. Junio C HamanoApr 20, 2020
  35. Danh DoanApr 20, 2020
  36. 0/3 Disallow NUL character in mailinfoĐoàn Trần Công Danh, Apr 20, 2020
  37. 1/3 t4254: merge 2 steps of a single testĐoàn Trần Công Danh, Apr 20, 2020
  38. 2/3 mailinfo.c: avoid strlen on strings that can contains NULĐoàn Trần Công Danh, Apr 20, 2020
  39. 3/3 mailinfo: disallow NUL character in mail's headerĐoàn Trần Công Danh, Apr 20, 2020

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