Looks Good to me.

On Wed, Mar 9, 2011 at 2:44 PM, Ben Pfaff <[email protected]> wrote:
> It is conventional for Unix tools to read from standard input if "-" is
> specified as a file name.  It's easy for "ovs-ofctl add-flows" to behave
> this way, too, so this commit implements it.
>
> Suggested-by: Paul Ingram <[email protected]>
> ---
>  utilities/ovs-ofctl.8.in |    3 ++-
>  utilities/ovs-ofctl.c    |    6 ++++--
>  2 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/utilities/ovs-ofctl.8.in b/utilities/ovs-ofctl.8.in
> index 95b0884..3472cc1 100644
> --- a/utilities/ovs-ofctl.8.in
> +++ b/utilities/ovs-ofctl.8.in
> @@ -132,7 +132,8 @@ below.
>  .
>  .TP
>  \fBadd\-flows \fIswitch file\fR
> -Add flow entries as described in \fIfile\fR to \fIswitch\fR's
> +Add the flow entries listed in \fIfile\fR, or supplied on \fBstdin\fR
> +if \fIfile\fR is \fB\-\fR, to \fIswitch\fR's
>  tables.  Each line in \fIfile\fR is a flow entry in the format
>  described in \fBFlow Syntax\fR, below.
>  .
> diff --git a/utilities/ovs-ofctl.c b/utilities/ovs-ofctl.c
> index a96b77a..f7605f7 100644
> --- a/utilities/ovs-ofctl.c
> +++ b/utilities/ovs-ofctl.c
> @@ -692,7 +692,7 @@ do_add_flows(int argc OVS_UNUSED, char *argv[])
>     struct vconn *vconn;
>     FILE *file;
>
> -    file = fopen(argv[2], "r");
> +    file = !strcmp(argv[2], "-") ? stdin : fopen(argv[2], "r");
>     if (file == NULL) {
>         ovs_fatal(errno, "%s: open", argv[2]);
>     }
> @@ -707,7 +707,9 @@ do_add_flows(int argc OVS_UNUSED, char *argv[])
>     }
>     vconn_close(vconn);
>
> -    fclose(file);
> +    if (file != stdin) {
> +        fclose(file);
> +    }
>  }
>
>  static void
> --
> 1.7.1
>
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>
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