Stefan Weil <w...@mail.berlios.de> writes:
> When called with property "?", a list of supported
> properties will be printed (instead of an error message).
>
> This is useful for command lines like
> qemu -device e1000,?
> and was already standard for other options like model=?
>
> Signed-off-by: Stefan Weil <w...@mail.berlios.de>
> ---
> hw/qdev-properties.c | 15 +++++++++++++--
> 1 files changed, 13 insertions(+), 2 deletions(-)
>
> diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
> index 277ff9e..8547ad2 100644
> --- a/hw/qdev-properties.c
> +++ b/hw/qdev-properties.c
> @@ -544,8 +544,19 @@ int qdev_prop_parse(DeviceState *dev, const char *name,
> const char *value)
>
> prop = qdev_prop_find(dev, name);
> if (!prop) {
> - fprintf(stderr, "property \"%s.%s\" not found\n",
> - dev->info->name, name);
> + if (strcmp(name, "?") != 0) {
> + fprintf(stderr, "property \"%s.%s\" not found\n",
> + dev->info->name, name);
> + } else {
> + fprintf(stderr, "supported properties:\n");
> + if (dev->info->props != NULL) {
> + Property *props = dev->info->props;
> + while (props->name) {
> + fprintf(stderr, "%s.%s\n", dev->info->name, props->name);
> + props++;
> + }
> + }
> + }
> return -1;
> }
> if (!prop->info->parse) {
I like it.
