Re: [PATCH] util: Simplify Windows version of virGetUserDirectoryByUID()

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On 12/18/19 12:53 PM, Fabiano Fidêncio wrote:
> Let's just use the plain g_get_home_dir(), from GLib, instead of
> maintaining a code adapted from the GLib's one.
> 
> Signed-off-by: Fabiano Fidêncio <fidencio@xxxxxxxxxx>
> ---
>  src/util/virutil.c | 92 +---------------------------------------------
>  1 file changed, 1 insertion(+), 91 deletions(-)
> 
> diff --git a/src/util/virutil.c b/src/util/virutil.c
> index a28feb3daa..4075047cf9 100644
> --- a/src/util/virutil.c
> +++ b/src/util/virutil.c
> @@ -1070,100 +1070,10 @@ virDoesGroupExist(const char *name G_GNUC_UNUSED)
>  }
>  
>  # ifdef WIN32
> -/* These methods are adapted from GLib2 under terms of LGPLv2+ */
> -static int
> -virGetWin32SpecialFolder(int csidl, char **path)
> -{
> -    char buf[MAX_PATH+1];
> -    LPITEMIDLIST pidl = NULL;
> -    int ret = 0;
> -
> -    *path = NULL;
> -
> -    if (SHGetSpecialFolderLocation(NULL, csidl, &pidl) == S_OK) {
> -        if (SHGetPathFromIDList(pidl, buf))
> -            *path = g_strdup(buf);
> -        CoTaskMemFree(pidl);
> -    }
> -    return ret;
> -}
> -
> -static int
> -virGetWin32DirectoryRoot(char **path)
> -{
> -    char windowsdir[MAX_PATH];
> -
> -    *path = NULL;
> -
> -    if (GetWindowsDirectory(windowsdir, G_N_ELEMENTS(windowsdir))) {
> -        const char *tmp;
> -        /* Usually X:\Windows, but in terminal server environments
> -         * might be an UNC path, AFAIK.
> -         */
> -        tmp = virFileSkipRoot(windowsdir);
> -        if (VIR_FILE_IS_DIR_SEPARATOR(tmp[-1]) &&
> -            tmp[-2] != ':')
> -            tmp--;
> -
> -        windowsdir[tmp - windowsdir] = '\0';
> -    } else {
> -        strcpy(windowsdir, "C:\\");
> -    }
> -
> -    *path = g_strdup(windowsdir);
> -    return 0;
> -}
> -
> -
> -
>  char *
>  virGetUserDirectoryByUID(uid_t uid G_GNUC_UNUSED)
>  {
> -    /* Since Windows lacks setuid binaries, and since we already fake
> -     * geteuid(), we can safely assume that this is only called when
> -     * querying about the current user */

Keep this comment, it explains why this function does not abide the
passed in uid argument. With that:

Reviewed-by: Cole Robinson <crobinso@xxxxxxxxxx>

After this, virFileSkipRoot and virFileIsAbsPath are no longer used, and
after that I think VIR_FILE_IS_DIR_SEPARATOR, maybe check for others.
Should be a follow up patch though

- Cole

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