in-addr-util: introduce in_addr_data_hash_ops_free and expose its compare and hash functions

Preparation for later commits.

2 files changed, 23 insertions, 4 deletions

diff --git a/src/basic/in-addr-util.c b/src/basic/in-addr-util.c
index 8ee5c0cc20..07ac87c6c4 100644
--- a/src/basic/in-addr-util.c
+++ b/src/basic/in-addr-util.c
@@ -921,7 +921,7 @@ int in_addr_prefix_from_string_auto_internal(
 
 }
 
-static void in_addr_data_hash_func(const struct in_addr_data *a, struct siphash *state) {
+void in_addr_data_hash_func(const struct in_addr_data *a, struct siphash *state) {
         assert(a);
         assert(state);
 
@@ -929,7 +929,7 @@ static void in_addr_data_hash_func(const struct in_addr_data *a, struct siphash
         siphash24_compress(&a->address, FAMILY_ADDRESS_SIZE(a->family), state);
 }
 
-static int in_addr_data_compare_func(const struct in_addr_data *x, const struct in_addr_data *y) {
+int in_addr_data_compare_func(const struct in_addr_data *x, const struct in_addr_data *y) {
         int r;
 
         assert(x);
@@ -942,7 +942,18 @@ static int in_addr_data_compare_func(const struct in_addr_data *x, const struct
         return memcmp(&x->address, &y->address, FAMILY_ADDRESS_SIZE(x->family));
 }
 
-DEFINE_HASH_OPS(in_addr_data_hash_ops, struct in_addr_data, in_addr_data_hash_func, in_addr_data_compare_func);
+DEFINE_HASH_OPS(
+        in_addr_data_hash_ops,
+        struct in_addr_data,
+        in_addr_data_hash_func,
+        in_addr_data_compare_func);
+
+DEFINE_HASH_OPS_WITH_KEY_DESTRUCTOR(
+        in_addr_data_hash_ops_free,
+        struct in_addr_data,
+        in_addr_data_hash_func,
+        in_addr_data_compare_func,
+        free);
 
 void in6_addr_hash_func(const struct in6_addr *addr, struct siphash *state) {
         assert(addr);
@@ -958,7 +969,12 @@ int in6_addr_compare_func(const struct in6_addr *a, const struct in6_addr *b) {
         return memcmp(a, b, sizeof(*a));
 }
 
-DEFINE_HASH_OPS(in6_addr_hash_ops, struct in6_addr, in6_addr_hash_func, in6_addr_compare_func);
+DEFINE_HASH_OPS(
+        in6_addr_hash_ops,
+        struct in6_addr,
+        in6_addr_hash_func,
+        in6_addr_compare_func);
+
 DEFINE_HASH_OPS_WITH_KEY_DESTRUCTOR(
         in6_addr_hash_ops_free,
         struct in6_addr,
diff --git a/src/basic/in-addr-util.h b/src/basic/in-addr-util.h
index 8d6efaa006..19354ad404 100644
--- a/src/basic/in-addr-util.h
+++ b/src/basic/in-addr-util.h
@@ -177,10 +177,13 @@ static inline size_t FAMILY_ADDRESS_SIZE(int family) {
  * See also oss-fuzz#11344. */
 #define IN_ADDR_NULL ((union in_addr_union) { .in6 = {} })
 
+void in_addr_data_hash_func(const struct in_addr_data *a, struct siphash *state);
+int in_addr_data_compare_func(const struct in_addr_data *x, const struct in_addr_data *y);
 void in6_addr_hash_func(const struct in6_addr *addr, struct siphash *state);
 int in6_addr_compare_func(const struct in6_addr *a, const struct in6_addr *b);
 
 extern const struct hash_ops in_addr_data_hash_ops;
+extern const struct hash_ops in_addr_data_hash_ops_free;
 extern const struct hash_ops in6_addr_hash_ops;
 extern const struct hash_ops in6_addr_hash_ops_free;