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

Re: [bug] blame duplicates trailing ">" in mailmapped emails

From
Junio C Hamano <gitster@pobox.com>
Date
Feb 5, 2012, 21:38 UTC
Message-ID
<7vipjlezas.fsf@alter.siamese.dyndns.org>
In-Reply-To
<7v39aphw85.fsf@alter.siamese.dyndns.org>
Junio C Hamano <gitster@pobox.com> writes:
Show 12 quoted lines
> Jeff King <peff@peff.net> writes:
> ...
>> but it feels like the fix should go into map_user.
>
> Thanks.
>
> The map_user() API takes an email address that is terminated by either NUL
> or '>' to allow the caller to learn the corresponding up-to-date email
> address that is NUL terminated, while indicating with its return value
> that if the caller even needs to replace what it already has.  But the
> function does not properly terminate email when it only touched the name
> part. And I think that is the real bug.

And the gist of the patch to fix the bug would look like this two liner. In the real fix, "p" should be renamed to "end_of_email" or something descriptive like that.

I only made sure that this fixes the original case of the email address of Shawn reported by Felipe, but other than that like everything else I send here with "... would look like this", not tested beyond "it compiles".

But conceptually it looks correct (famous last words ;-).
Felipe, does it pass your test cases?
 mailmap.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/mailmap.c b/mailmap.c
index 8c3196c..ce805fa 100644
--- a/mailmap.c
+++ b/mailmap.c
@@ -236,6 +236,8 @@ int map_user(struct string_list *map,
 		}
 		if (maxlen_email && mi->email)
 			strlcpy(email, mi->email, maxlen_email);
+		else
+			*p = '\0';
 		if (maxlen_name && mi->name)
 			strlcpy(name, mi->name, maxlen_name);
 		debug_mm("map_user:  to '%s' <%s>\n", name, mi->email ? mi->email : "");
Previous: Junio C HamanoNext: Jeff King
Message 20 of 38 in “completion: couple of cleanups”
  1. 0/4 completion: couple of cleanupsFelipe Contreras, Feb 2, 2012
  2. Jonathan NiederFeb 2, 2012
  3. Felipe ContrerasFeb 2, 2012
  4. Thomas RastFeb 2, 2012
  5. Jonathan NiederFeb 2, 2012
  6. Jonathan NiederFeb 2, 2012
  7. Felipe ContrerasFeb 2, 2012
  8. Junio C HamanoFeb 2, 2012
  9. Felipe ContrerasFeb 2, 2012
  10. Junio C HamanoFeb 3, 2012
  11. Felipe ContrerasFeb 3, 2012
  12. Junio C HamanoFeb 3, 2012
  13. Felipe ContrerasFeb 4, 2012
  14. [bug] blame duplicates trailing ">" in mailmapped emailsJeff King, Feb 4, 2012
  15. Felipe ContrerasFeb 4, 2012
  16. Jeff KingFeb 4, 2012
  17. Felipe ContrerasFeb 5, 2012
  18. Jeff KingFeb 5, 2012
  19. Junio C HamanoFeb 5, 2012
  20. Junio C HamanoFeb 5, 2012
  21. Jeff KingFeb 5, 2012
  22. Junio C HamanoFeb 6, 2012
  23. Jeff KingFeb 6, 2012
  24. Junio C HamanoFeb 6, 2012
  25. Junio C HamanoFeb 6, 2012
  26. Jeff KingFeb 6, 2012
  27. Felipe ContrerasFeb 6, 2012
  28. Junio C HamanoFeb 6, 2012
  29. Felipe ContrerasFeb 6, 2012
  30. Junio C HamanoFeb 5, 2012
  31. Jonathan NiederFeb 2, 2012
  32. Junio C HamanoFeb 2, 2012
  33. Jonathan NiederFeb 2, 2012
  34. Felipe ContrerasFeb 2, 2012
  35. Jonathan NiederFeb 2, 2012
  36. Felipe ContrerasFeb 2, 2012
  37. Jonathan NiederFeb 2, 2012
  38. Felipe ContrerasFeb 2, 2012

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.