X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Fin-addr-util.h;h=51af08868cda48af0db4681613a5be4b853234ac;hb=0a6f50c0afdfc434b492493bd9efab20cbee8623;hp=0036acee225df770769c7bd270ebccf8b0d2f280;hpb=44e7b9492617408130d11ffa451c2660942974f6;p=elogind.git

diff --git a/src/shared/in-addr-util.h b/src/shared/in-addr-util.h
index 0036acee2..51af08868 100644
--- a/src/shared/in-addr-util.h
+++ b/src/shared/in-addr-util.h
@@ -39,9 +39,15 @@ 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);
+int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen);
 
 static inline size_t FAMILY_ADDRESS_SIZE(int family) {
         assert(family == AF_INET || family == AF_INET6);
         return family == AF_INET6 ? 16 : 4;
 }
+
+#define IN_ADDR_NULL ((union in_addr_union) {})