Hi Phil,
On Wed, Oct 04, 2017 at 11:36:40PM +0200, Phil Sutter wrote:
> Implement expression printing into a FILE pointer analogous to
> nftnl_rule_fprintf().
src/libnftnl.map needs to be updated. I can do it here myself, no
problem, or feel free to send v2, as you prefer.
> Signed-off-by: Phil Sutter <phil@xxxxxx>
> ---
> include/libnftnl/expr.h | 1 +
> src/expr.c | 14 ++++++++++++++
> 2 files changed, 15 insertions(+)
>
> diff --git a/include/libnftnl/expr.h b/include/libnftnl/expr.h
> index 76f28fee7b5f7..f37f50963d6c3 100644
> --- a/include/libnftnl/expr.h
> +++ b/include/libnftnl/expr.h
> @@ -39,6 +39,7 @@ const char *nftnl_expr_get_str(const struct nftnl_expr *expr, uint16_t type);
> bool nftnl_expr_cmp(const struct nftnl_expr *e1, const struct nftnl_expr *e2);
>
> int nftnl_expr_snprintf(char *buf, size_t buflen, const struct nftnl_expr *expr, uint32_t type, uint32_t flags);
> +int nftnl_expr_fprintf(FILE *fp, const struct nftnl_expr *expr, uint32_t type, uint32_t flags);
>
> enum {
> NFTNL_EXPR_PAYLOAD_DREG = NFTNL_EXPR_BASE,
> diff --git a/src/expr.c b/src/expr.c
> index c5fcf06492ae2..1eae70787209d 100644
> --- a/src/expr.c
> +++ b/src/expr.c
> @@ -293,3 +293,17 @@ int nftnl_expr_snprintf(char *buf, size_t size, const struct nftnl_expr *expr,
> return offset;
> }
> EXPORT_SYMBOL(nftnl_expr_snprintf);
> +
> +static int nftnl_expr_do_snprintf(char *buf, size_t size, const void *e,
> + uint32_t cmd, uint32_t type, uint32_t flags)
> +{
> + return nftnl_expr_snprintf(buf, size, e, type, flags);
> +}
> +
> +int nftnl_expr_fprintf(FILE *fp, const struct nftnl_expr *expr, uint32_t type,
> + uint32_t flags)
> +{
> + return nftnl_fprintf(fp, expr, NFTNL_CMD_UNSPEC, type, flags,
> + nftnl_expr_do_snprintf);
> +}
> +EXPORT_SYMBOL(nftnl_expr_fprintf);
> --
> 2.13.1
>
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