[libvirt] [PATCH] Fix off-by-1 in virFileAbsPath.

[Eric Blake]

On 02/22/2011 10:54 AM, Daniel P. Berrange wrote:
> The virFileAbsPath was not taking into account the '/' directory
> separator when allocating memory for combining cwd + path. Convert
> to use virAsprintf to avoid this type of bug completely.
> 
> +        if (virAsprintf(abspath, "%s/%s", buf, path) < 0) {
>              VIR_FREE(buf);
>              errno = ENOMEM;

On IRC, there was a discussion that this explicit assignment to errno is
now redundant (virAsprintf guarantees that errno is already set to
ENOMEM on failure [well, unless you used a stupid format string that
could cause EINVAL or EILSEQ, but who does that?]).  Up to you if you
want to delete that line before pushing this patch.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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