iptables: remove duplicated argument parsing code

1. Factor out repeated code to a new xs_has_arg function.
2. Add a new parse_wait_time option to parse the value of -w.
3. Make parse_wait_interval take argc and argv so its callers
   can be simpler.

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/iptables/xshared.h b/iptables/xshared.h
index 18b1cf37..d8a697ae 100644
--- a/iptables/xshared.h
+++ b/iptables/xshared.h
@@ -88,7 +88,9 @@ extern void xs_init_target(struct xtables_target *);
 extern void xs_init_match(struct xtables_match *);
 bool xtables_lock(int wait, struct timeval *wait_interval);
 
-void parse_wait_interval(const char *str, struct timeval *wait_interval);
+int parse_wait_time(int argc, char *argv[]);
+void parse_wait_interval(int argc, char *argv[], struct timeval *wait_interval);
+bool xs_has_arg(int argc, char *argv[]);
 
 extern const struct xtables_afinfo *afinfo;