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* [PATCH nft] datatype: display description for header field < 8 bits
@ 2019-10-09 20:48 Pablo Neira Ayuso
  0 siblings, 0 replies; only message in thread
From: Pablo Neira Ayuso @ 2019-10-09 20:48 UTC (permalink / raw)
  To: netfilter-devel

 # nft describe ip dscp
 payload expression, datatype dscp (Differentiated Services Code Point) (basetype integer), 6 bits

 pre-defined symbolic constants (in hexadecimal):
 nft: datatype.c:209: switch_byteorder: Assertion `len > 0' failed.
 Aborted

Fixes: c89a0801d077 ("datatype: Display pre-defined inet_service values in host byte order")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 src/datatype.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/datatype.c b/src/datatype.c
index 873f7d4d358b..0ee2925a8368 100644
--- a/src/datatype.c
+++ b/src/datatype.c
@@ -220,6 +220,9 @@ void symbol_table_print(const struct symbol_table *tbl,
 	unsigned int len = dtype->size / BITS_PER_BYTE;
 	uint64_t value;
 
+	if (!len)
+		len = 1;
+
 	for (s = tbl->symbols; s->identifier != NULL; s++) {
 		value = s->value;
 
-- 
2.11.0


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