It changes the parse and the snprint functions to omit unset values.
Now, This part of a xml file is gotten without unset elements.
<expr type="limit">
<rate>400</rate>
<unit>60</unit>
</expr>
Signed-off-by: Ana Rey <anarey@xxxxxxxxx>
---
src/expr/limit.c | 28 +++++++++++++++++-----------
1 file changed, 17 insertions(+), 11 deletions(-)
diff --git a/src/expr/limit.c b/src/expr/limit.c
index 6732318..3410597 100644
--- a/src/expr/limit.c
+++ b/src/expr/limit.c
@@ -145,16 +145,12 @@ static int nft_rule_expr_limit_xml_parse(struct nft_rule_expr *e,
uint64_t rate, unit;
if (nft_mxml_num_parse(tree, "rate", MXML_DESCEND_FIRST, BASE_DEC,
- &rate, NFT_TYPE_U64, NFT_XML_MAND,
- err) < 0)
- return -1;
- nft_rule_expr_set_u64(e, NFT_EXPR_LIMIT_RATE, rate);
+ &rate, NFT_TYPE_U64, NFT_XML_MAND, err) == 0)
+ nft_rule_expr_set_u64(e, NFT_EXPR_LIMIT_RATE, rate);
if (nft_mxml_num_parse(tree, "unit", MXML_DESCEND_FIRST, BASE_DEC,
- &unit, NFT_TYPE_U64, NFT_XML_MAND,
- err) < 0)
- return -1;
- nft_rule_expr_set_u64(e, NFT_EXPR_LIMIT_UNIT, unit);
+ &unit, NFT_TYPE_U64, NFT_XML_MAND, err) == 0)
+ nft_rule_expr_set_u64(e, NFT_EXPR_LIMIT_UNIT, unit);
return 0;
#else
@@ -178,10 +174,20 @@ static const char *get_unit(uint64_t u)
static int nft_rule_expr_limit_snprintf_xml(char *buf, size_t len,
struct nft_rule_expr *e) {
struct nft_expr_limit *limit = nft_expr_data(e);
+ int ret, size = len, offset = 0;
- return snprintf(buf, len, "<rate>%"PRIu64"</rate>"
- "<unit>%"PRIu64"</unit>",
- limit->rate, limit->unit);
+ if (e->flags & (1 << NFT_EXPR_LIMIT_RATE)) {
+ ret = snprintf(buf + offset, len, "<rate>%"PRIu64"</rate>",
+ limit->rate);
+ SNPRINTF_BUFFER_SIZE(ret, size, len, offset);
+ }
+ if (e->flags & (1 << NFT_EXPR_LIMIT_UNIT)) {
+ ret = snprintf(buf + offset, len, "<unit>%"PRIu64"</unit>",
+ limit->unit);
+ SNPRINTF_BUFFER_SIZE(ret, size, len, offset);
+ }
+
+ return offset;
}
static int nft_rule_expr_limit_snprintf_json(char *buf, size_t len,
--
2.0.0
--
To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
