From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 9 Oct 2019 20:09:52 +0000 (+0200)
Subject: datatype: display description for header field < 8 bits
X-Git-Tag: v0.9.3~52
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6450e36080e66e4edc90ea688ffb52c60e14f2cd;p=thirdparty%2Fnftables.git

datatype: display description for header field < 8 bits

 # 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>
---

diff --git a/src/datatype.c b/src/datatype.c
index 873f7d4d..b9e167e0 100644
--- a/src/datatype.c
+++ b/src/datatype.c
@@ -216,8 +216,8 @@ void symbol_table_print(const struct symbol_table *tbl,
 			enum byteorder byteorder,
 			struct output_ctx *octx)
 {
+	unsigned int len = div_round_up(dtype->size, BITS_PER_BYTE);
 	const struct symbolic_constant *s;
-	unsigned int len = dtype->size / BITS_PER_BYTE;
 	uint64_t value;
 
 	for (s = tbl->symbols; s->identifier != NULL; s++) {