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[PATCHv2] curses ui: always initialize all curses_line fields

Message ID 20190315130932.26094-1-samuel.thibault@ens-lyon.org (mailing list archive)
State New, archived
Headers show
Series [PATCHv2] curses ui: always initialize all curses_line fields | expand

Commit Message

Samuel Thibault March 15, 2019, 1:09 p.m. UTC
cchar_t can contain not only attr and chars fields, but also ext_color.
Initialize the whole structure to zero instead of enumerating fields.

Spotted by Coverity: CID 1399711

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
 ui/curses.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Philippe Mathieu-Daudé March 15, 2019, 4:15 p.m. UTC | #1
On 3/15/19 2:09 PM, Samuel Thibault wrote:
> cchar_t can contain not only attr and chars fields, but also ext_color.
> Initialize the whole structure to zero instead of enumerating fields.
> 
> Spotted by Coverity: CID 1399711
> 
> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
> ---
>  ui/curses.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/ui/curses.c b/ui/curses.c
> index d29098db9f..cc6d6da684 100644
> --- a/ui/curses.c
> +++ b/ui/curses.c
> @@ -75,9 +75,9 @@ static void curses_update(DisplayChangeListener *dcl,
>              if (vga_to_curses[ch].chars[0]) {
>                  curses_line[x] = vga_to_curses[ch];
>              } else {
> -                curses_line[x].chars[0] = ch;
> -                curses_line[x].chars[1] = 0;
> -                curses_line[x].attr = 0;
> +                curses_line[x] = (cchar_t) {
> +                    .chars[0] = ch,
> +                };
>              }
>              curses_line[x].attr |= at;
>          }
> 

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Gerd Hoffmann March 18, 2019, 9:55 a.m. UTC | #2
On Fri, Mar 15, 2019 at 02:09:32PM +0100, Samuel Thibault wrote:
> cchar_t can contain not only attr and chars fields, but also ext_color.
> Initialize the whole structure to zero instead of enumerating fields.
> 
> Spotted by Coverity: CID 1399711
> 
> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

Added to UI patch queue.

thanks,
  Gerd
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Patch

diff --git a/ui/curses.c b/ui/curses.c
index d29098db9f..cc6d6da684 100644
--- a/ui/curses.c
+++ b/ui/curses.c
@@ -75,9 +75,9 @@  static void curses_update(DisplayChangeListener *dcl,
             if (vga_to_curses[ch].chars[0]) {
                 curses_line[x] = vga_to_curses[ch];
             } else {
-                curses_line[x].chars[0] = ch;
-                curses_line[x].chars[1] = 0;
-                curses_line[x].attr = 0;
+                curses_line[x] = (cchar_t) {
+                    .chars[0] = ch,
+                };
             }
             curses_line[x].attr |= at;
         }