treewide: replace unsafe string functions

Replace sprintf(), strncpy() etc. with safer variants that perform bounds
checking on the target buffer. Also rework unsafe `p += sprintf(p, ....)`
code to properly handle error cases.

Ref: http://lists.infradead.org/pipermail/openwrt-devel/2020-May/023363.html
Suggested-by: Philip Prindeville <philipp@redfish-solutions.com>
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/iptables.h b/iptables.h
index 402baf2..ca39809 100644
--- a/iptables.h
+++ b/iptables.h
@@ -56,7 +56,7 @@ void fw3_ipt_delete_chain(struct fw3_ipt_handle *h, bool if_unused,
 void fw3_ipt_delete_id_rules(struct fw3_ipt_handle *h, const char *chain);
 
 void fw3_ipt_create_chain(struct fw3_ipt_handle *h, bool ignore_existing,
-                          const char *fmt, ...);
+                          const char *chain);
 
 void fw3_ipt_flush(struct fw3_ipt_handle *h);