tree-wide: make hash_ops typesafe

src/basic/ether-addr-util.c

@@ -28,21 +28,15 @@ char* ether_addr_to_string(const struct ether_addr *addr, char buffer[ETHER_ADDR
         return buffer;
 }
 
-int ether_addr_compare(const void *a, const void *b) {
-        assert(a);
-        assert(b);
-
+int ether_addr_compare(const struct ether_addr *a, const struct ether_addr *b) {
         return memcmp(a, b, ETH_ALEN);
 }
 
-static void ether_addr_hash_func(const void *p, struct siphash *state) {
+static void ether_addr_hash_func(const struct ether_addr *p, struct siphash *state) {
         siphash24_compress(p, sizeof(struct ether_addr), state);
 }
 
-const struct hash_ops ether_addr_hash_ops = {
-        .hash = ether_addr_hash_func,
-        .compare = ether_addr_compare
-};
+DEFINE_HASH_OPS(ether_addr_hash_ops, struct ether_addr, ether_addr_hash_func, ether_addr_compare);
 
 int ether_addr_from_string(const char *s, struct ether_addr *ret) {
         size_t pos = 0, n, field;

src/basic/ether-addr-util.h

@@ -12,7 +12,7 @@
 #define ETHER_ADDR_TO_STRING_MAX (3*6)
 char* ether_addr_to_string(const struct ether_addr *addr, char buffer[ETHER_ADDR_TO_STRING_MAX]);
 
-int ether_addr_compare(const void *a, const void *b);
+int ether_addr_compare(const struct ether_addr *a, const struct ether_addr *b);
 static inline bool ether_addr_equal(const struct ether_addr *a, const struct ether_addr *b) {
         return ether_addr_compare(a, b) == 0;
 }

src/basic/in-addr-util.c

@@ -603,15 +603,12 @@ int in_addr_prefix_from_string_auto_internal(
 
 }
 
-void in_addr_data_hash_func(const void *p, struct siphash *state) {
-        const struct in_addr_data *a = p;
-
+static void in_addr_data_hash_func(const struct in_addr_data *a, struct siphash *state) {
         siphash24_compress(&a->family, sizeof(a->family), state);
         siphash24_compress(&a->address, FAMILY_ADDRESS_SIZE(a->family), state);
 }
 
-int in_addr_data_compare_func(const void *a, const void *b) {
-        const struct in_addr_data *x = a, *y = b;
+static int in_addr_data_compare_func(const struct in_addr_data *x, const struct in_addr_data *y) {
         int r;
 
         r = CMP(x->family, y->family);
@@ -621,7 +618,4 @@ int in_addr_data_compare_func(const void *a, const void *b) {
         return memcmp(&x->address, &y->address, FAMILY_ADDRESS_SIZE(x->family));
 }
 
-const struct hash_ops in_addr_data_hash_ops = {
-        .hash = in_addr_data_hash_func,
-        .compare = 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);

src/basic/in-addr-util.h

@@ -69,6 +69,4 @@ 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 void *p, struct siphash *state);
-int in_addr_data_compare_func(const void *a, const void *b);
 extern const struct hash_ops in_addr_data_hash_ops;