git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Junio C Hamano <gitster@pobox.com>
To: Jeff Hostetler <git@jeffhostetler.com>
Cc: Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>,
	git@vger.kernel.org,
	Johannes Schindelin <johannes.schindelin@gmx.de>
Subject: Re: [PATCH 1/1] mingw: safe-guard a bit more against getenv() problems
Date: Fri, 15 Feb 2019 10:25:24 -0800	[thread overview]
Message-ID: <xmqqh8d46h9n.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <96793350-0991-6e8f-6ab2-15777e2071be@jeffhostetler.com> (Jeff Hostetler's message of "Fri, 15 Feb 2019 11:14:01 -0500")

Jeff Hostetler <git@jeffhostetler.com> writes:

>> diff --git a/compat/mingw.c b/compat/mingw.c
>> index 4276297595..8141f77189 100644
>> --- a/compat/mingw.c
>> +++ b/compat/mingw.c
>> @@ -1632,7 +1632,7 @@ int mingw_kill(pid_t pid, int sig)
>>    */
>>   char *mingw_getenv(const char *name)
>>   {
>> -#define GETENV_MAX_RETAIN 30
>> +#define GETENV_MAX_RETAIN 64
>>   	static char *values[GETENV_MAX_RETAIN];
>>   	static int value_counter;
>>   	int len_key, len_value;
>>
>
> Why not use a mem_pool for this?  We have that code isolated
> and re-usable now.  Have mingw_getenv() copy the string into
> the pool always return the pointer from within the pool.  The
> pool automatically handles allocating new blocks as necessary.
> And (if we care) we can bulk free the pool before existing.

Probably a good idea in the longer term.  The patch as posted would
do for the upcoming release, though.

Thanks, both.


  reply	other threads:[~2019-02-15 18:25 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-15 15:17 [PATCH 0/1] Safe-guard the Windows code a bit more against getenv() problems Johannes Schindelin via GitGitGadget
2019-02-15 15:17 ` [PATCH 1/1] mingw: safe-guard " Johannes Schindelin via GitGitGadget
2019-02-15 16:14   ` Jeff Hostetler
2019-02-15 18:25     ` Junio C Hamano [this message]
2019-02-18 18:57     ` Johannes Schindelin
2019-02-21 13:58       ` Jeff King
2019-02-21 13:52   ` Jeff King

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: http://vger.kernel.org/majordomo-info.html

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=xmqqh8d46h9n.fsf@gitster-ct.c.googlers.com \
    --to=gitster@pobox.com \
    --cc=git@jeffhostetler.com \
    --cc=git@vger.kernel.org \
    --cc=gitgitgadget@gmail.com \
    --cc=johannes.schindelin@gmx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://80x24.org/mirrors/git.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).