For e.g.
nft -c " "
nft: no command specified
Without this patch it segfaults.
Signed-off-by: Harsha Sharma <harshasharmaiitr@xxxxxxxxx>
---
Changes in v2:
- Return when state->cmds is an empty list
- Change log message and subject
src/libnftables.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/libnftables.c b/src/libnftables.c
index c86d894..1406dae 100644
--- a/src/libnftables.c
+++ b/src/libnftables.c
@@ -33,6 +33,11 @@ static int nft_netlink(struct nft_ctx *nft,
batch = mnl_batch_init();
batch_seqnum = mnl_batch_begin(batch, mnl_seqnum_alloc(&seqnum));
+
+ if (list_empty(&state->cmds)) {
+ fprintf(stderr, "nft: no command specified\n");
+ goto out;
+ }
list_for_each_entry(cmd, &state->cmds, list) {
memset(&ctx, 0, sizeof(ctx));
ctx.msgs = msgs;
--
2.14.1
--
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