From: Duy Nguyen <pclouds@gmail.com>
Date: Tue, 24 Jun 2014 13:30:26 GMT
Subject: Re: [PATCH v2 06/10] setup_git_env: use git_pathdup instead of xmalloc + sprintf
Message-ID: <CACsJy8B-zQUH++U_RKq16_M+6FF5bmHXA100xM3uO42TUj3kJg@mail.gmail.com>
In-Reply-To: <20140619212800.GF28474@sigill.intra.peff.net>

While it's about malloc..

On Fri, Jun 20, 2014 at 4:28 AM, Jeff King <peff@peff.net> wrote:
> diff --git a/environment.c b/environment.c
> index 4dac5e9..4de7b81 100644
> --- a/environment.c
> +++ b/environment.c
> @@ -135,15 +135,11 @@ static void setup_git_env(void)
>         gitfile = read_gitfile(git_dir);
>         git_dir = xstrdup(gitfile ? gitfile : git_dir);
>         git_object_dir = getenv(DB_ENVIRONMENT);
> -       if (!git_object_dir) {
> -               git_object_dir = xmalloc(strlen(git_dir) + 9);
> -               sprintf(git_object_dir, "%s/objects", git_dir);
> -       }

If DB_ENVIRONMENT is set, we should xstrdup(git_object_dir) because
getenv's return value is not guaranteed persistent. Since you're touch
this area, perhaps do it too (in this, or another patch)?
-- 
Duy