[libvirt] [PATCHv8 5/7] bhyve: Probe grub-bhyve for --cons-dev capability

[Michal Privoznik]

On 08.11.2014 17:48, Conrad Meyer wrote:
> ---
>   src/bhyve/bhyve_capabilities.c | 37 +++++++++++++++++++++++++++++++++++++
>   src/bhyve/bhyve_capabilities.h |  3 +++
>   2 files changed, 40 insertions(+)
>
> diff --git a/src/bhyve/bhyve_capabilities.c b/src/bhyve/bhyve_capabilities.c
> index 132ce91..6e9a943 100644
> --- a/src/bhyve/bhyve_capabilities.c
> +++ b/src/bhyve/bhyve_capabilities.c
> @@ -23,6 +23,7 @@
>   #include <sys/utsname.h>
>
>   #include "viralloc.h"
> +#include "virfile.h"
>   #include "virlog.h"
>   #include "virstring.h"
>   #include "cpu/cpu.h"
> @@ -104,3 +105,39 @@ virBhyveCapsBuild(void)
>       virObjectUnref(caps);
>       return NULL;
>   }
> +
> +int
> +virBhyveProbeGrubCaps(unsigned *caps)
> +{
> +    char *binary, *help;
> +    virCommandPtr cmd;
> +    int ret, exit;
> +
> +    ret = 0;
> +    *caps = 0;
> +    cmd = NULL;
> +    help = NULL;
> +
> +    binary = virFindFileInPath("grub-bhyve");
> +    if (binary == NULL)
> +        goto out;
> +    if (!virFileIsExecutable(binary))
> +        goto out;
> +
> +    cmd = virCommandNew(binary);
> +    virCommandAddArg(cmd, "--help");
> +    virCommandSetOutputBuffer(cmd, &help);
> +    if (virCommandRun(cmd, &exit) < 0) {
> +        ret = -1;
> +        goto out;
> +    }
> +
> +    if (strstr(help, "--cons-dev") != NULL)
> +        *caps |= BHYVE_GRUB_CAP_CONSDEV;
> +
> + out:
> +    VIR_FREE(help);
> +    virCommandFree(cmd);
> +    VIR_FREE(binary);
> +    return ret;
> +}
> diff --git a/src/bhyve/bhyve_capabilities.h b/src/bhyve/bhyve_capabilities.h
> index c52e0d0..f4ebd90 100644
> --- a/src/bhyve/bhyve_capabilities.h
> +++ b/src/bhyve/bhyve_capabilities.h
> @@ -26,4 +26,7 @@
>
>   virCapsPtr virBhyveCapsBuild(void);
>
> +# define BHYVE_GRUB_CAP_CONSDEV 0x00000001


This should be rather an enum.

> +int virBhyveProbeGrubCaps(unsigned *caps);
> +
>   #endif
>

Michal