shared: add minimal firewall manipulation helpers for establishing NAT rules, using...

[elogind.git] / src / shared / in-addr-util.h

diff --git a/src/shared/in-addr-util.h b/src/shared/in-addr-util.h
index 0036acee225df770769c7bd270ebccf8b0d2f280..4cf4418b4be7b72d5b1839cace93d66639dd28ed 100644 (file)
--- a/src/shared/in-addr-util.h
+++ b/src/shared/in-addr-util.h
@@ -39,7 +39,10 @@ int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen);
 int in_addr_to_string(int family, const union in_addr_union *u, char **ret);
 int in_addr_from_string(int family, const char *s, union in_addr_union *ret);
 int in_addr_from_string_auto(const char *s, int *family, union in_addr_union *ret);
-unsigned in_addr_netmask_to_prefixlen(const struct in_addr *addr);
+unsigned char in_addr_netmask_to_prefixlen(const struct in_addr *addr);
+struct in_addr* in_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen);
+int in_addr_default_prefixlen(const struct in_addr *addr, unsigned char *prefixlen);
+int in_addr_default_subnet_mask(const struct in_addr *addr, struct in_addr *mask);
 
 static inline size_t FAMILY_ADDRESS_SIZE(int family) {
         assert(family == AF_INET || family == AF_INET6);