[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v2 1/6] qemu-option: Introduce has_help_option()
From: |
Jeff Cody |
Subject: |
Re: [Qemu-devel] [PATCH v2 1/6] qemu-option: Introduce has_help_option() |
Date: |
Thu, 20 Feb 2014 15:21:08 -0500 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Thu, Feb 20, 2014 at 03:57:18PM +0100, Kevin Wolf wrote:
> This new function checks if any help option ('help' or '?') occurs
> anywhere in an option string, so that things like 'cluster_size=4k,help'
> are recognised.
>
> Signed-off-by: Kevin Wolf <address@hidden>
Reviewed-by: Jeff Cody <address@hidden>
> ---
> include/qemu/option.h | 1 +
> util/qemu-option.c | 24 ++++++++++++++++++++++++
> 2 files changed, 25 insertions(+)
>
> diff --git a/include/qemu/option.h b/include/qemu/option.h
> index 3ea871a..8d44167 100644
> --- a/include/qemu/option.h
> +++ b/include/qemu/option.h
> @@ -79,6 +79,7 @@ void parse_option_size(const char *name, const char *value,
> void free_option_parameters(QEMUOptionParameter *list);
> void print_option_parameters(QEMUOptionParameter *list);
> void print_option_help(QEMUOptionParameter *list);
> +bool has_help_option(const char *param);
>
> /* ------------------------------------------------------------------ */
>
> diff --git a/util/qemu-option.c b/util/qemu-option.c
> index 668e5d9..ce1eba8 100644
> --- a/util/qemu-option.c
> +++ b/util/qemu-option.c
> @@ -450,6 +450,30 @@ fail:
> return NULL;
> }
>
> +bool has_help_option(const char *param)
> +{
> + size_t buflen = strlen(param) + 1;
> + char *buf = g_malloc0(buflen);
> + const char *p = param;
> + bool result = false;
> +
> + while (*p) {
> + p = get_opt_value(buf, buflen, p);
> + if (*p) {
> + p++;
> + }
> +
> + if (is_help_option(buf)) {
> + result = true;
> + goto out;
> + }
> + }
> +
> +out:
> + free(buf);
> + return result;
> +}
> +
> /*
> * Prints all options of a list that have a value to stdout
> */
> --
> 1.8.1.4
>
>