[Qemu-devel] Re: [RESEND] [PATCH v2] Fix off-by-one bug limiting VNC passwords to 7 chars

[Anthony Liguori]

Applied.  Thanks.

Regards,

Anthony Liguori

Chris Webb wrote:
> Fix off-by-one bug limiting VNC passwords to 7 characters instead of 8
>
> monitor_readline expects buf_size to include the terminating \0, but
> do_change_vnc in monitor.c calls it as though it doesn't. The other site
> where monitor_readline reads a password (in vl.c) passes the buffer length
> correctly.
>
> Signed-off-by: Chris Webb <address@hidden>
> ---
>  monitor.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/monitor.c b/monitor.c
> index 22360fc..a252838 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -433,8 +433,7 @@ static void do_change_vnc(const char *target)
>      if (strcmp(target, "passwd") == 0 ||
>         strcmp(target, "password") == 0) {
>         char password[9];
> -       monitor_readline("Password: ", 1, password, sizeof(password)-1);
> -       password[sizeof(password)-1] = '\0';
> +       monitor_readline("Password: ", 1, password, sizeof(password));
>         if (vnc_display_password(NULL, password) < 0)
>             term_printf("could not set VNC server password\n");
>      } else {
>
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