hartmannathan commented on code in PR #3295:
URL: https://github.com/apache/nuttx-apps/pull/3295#discussion_r2663059305
##########
system/iptables/iptables.c:
##########
@@ -506,7 +506,7 @@ int main(int argc, FAR char *argv[])
else
#endif
#ifdef CONFIG_NET_NAT
- if (strcmp(args.table, TABLE_NAME_NAT) == 0)
+ if (args.table == NULL || strcmp(args.table, TABLE_NAME_NAT) == 0)
Review Comment:
Just to make sure I understand correctly: If `args.table` is NULL, it's OK
to call `iptables_apply()`? Note that in `iptables_apply()`, `COMMAND_FLUSH`,
`COMMAND_LIST`, and `COMMAND_POLICY` will try to access `args->table`. It's
possible other commands also will try, but I didn't dig further. If this was
unintended, the line could be changed as follows, which will prevent calling
`iptables_apply()` if `args.table` is NULL.
```suggestion
if (args.table != NULL && strcmp(args.table, TABLE_NAME_NAT) == 0)
```
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