From 2249ea7623be56e11e24c4aaf4fff59852e50730 Mon Sep 17 00:00:00 2001 From: Ana Rey Date: Tue, 24 Jun 2014 09:15:37 +0200 Subject: expr: counter: Do not print unset values in xml It changes the parse and the snprint functions to omit unset values. Signed-off-by: Ana Rey Signed-off-by: Pablo Neira Ayuso --- src/expr/counter.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/src/expr/counter.c b/src/expr/counter.c index 9d85a96..6f6a7ee 100644 --- a/src/expr/counter.c +++ b/src/expr/counter.c @@ -150,16 +150,12 @@ nft_rule_expr_counter_xml_parse(struct nft_rule_expr *e, mxml_node_t *tree, uint64_t pkts, bytes; if (nft_mxml_num_parse(tree, "pkts", MXML_DESCEND_FIRST, BASE_DEC, - &pkts, NFT_TYPE_U64, NFT_XML_MAND, - err) != 0) - return -1; - nft_rule_expr_set_u64(e, NFT_EXPR_CTR_PACKETS, pkts); + &pkts, NFT_TYPE_U64, NFT_XML_MAND, err) == 0) + nft_rule_expr_set_u64(e, NFT_EXPR_CTR_PACKETS, pkts); if (nft_mxml_num_parse(tree, "bytes", MXML_DESCEND_FIRST, BASE_DEC, - &bytes, NFT_TYPE_U64, NFT_XML_MAND, - err) != 0) - return -1; - nft_rule_expr_set_u64(e, NFT_EXPR_CTR_BYTES, bytes); + &bytes, NFT_TYPE_U64, NFT_XML_MAND, err) == 0) + nft_rule_expr_set_u64(e, NFT_EXPR_CTR_BYTES, bytes); return 0; #else @@ -179,11 +175,20 @@ static int nft_rule_expr_counter_snprintf_json(char *buf, size_t len, static int nft_rule_expr_counter_snprintf_xml(char *buf, size_t len, struct nft_rule_expr *e) { + int ret, size = len, offset = 0; struct nft_expr_counter *ctr = nft_expr_data(e); - return snprintf(buf, len, "%"PRIu64"" - "%"PRIu64"", - ctr->pkts, ctr->bytes); + if (e->flags & (1 << NFT_EXPR_CTR_PACKETS)) { + ret = snprintf(buf, len, "%"PRIu64"", ctr->pkts); + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + } + if (e->flags & (1 << NFT_EXPR_CTR_BYTES)) { + ret = snprintf(buf + offset, len, "%"PRIu64"", + ctr->bytes); + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + } + + return offset; } static int nft_rule_expr_counter_snprintf_default(char *buf, size_t len, -- cgit v1.2.3