change type for address family to "int"

Let's settle on a single type for all address family values, even if
UNIX is very inconsitent on the precise type otherwise. Given that
socket() is the primary entrypoint for the sockets API, and that uses
"int", and "int" is relatively simple and generic, we settle on "int"
for this.

src/network/networkd-address-pool.c

@@ -26,7 +26,7 @@
 int address_pool_new(
                 Manager *m,
                 AddressPool **ret,
-                unsigned family,
+                int family,
                 const union in_addr_union *u,
                 unsigned prefixlen) {
 
@@ -54,7 +54,7 @@ int address_pool_new(
 int address_pool_new_from_string(
                 Manager *m,
                 AddressPool **ret,
-                unsigned family,
+                int family,
                 const char *p,
                 unsigned prefixlen) {
 

src/network/networkd-manager.c

@@ -467,7 +467,7 @@ finish:
         return r;
 }
 
-int manager_address_pool_acquire(Manager *m, unsigned family, unsigned prefixlen, union in_addr_union *found) {
+int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found) {
         AddressPool *p;
         int r;
 

src/network/networkd-netdev.h

@@ -104,7 +104,7 @@ struct NetDev {
 
         unsigned ttl;
         unsigned tos;
-        unsigned char family;
+        int family;
         union in_addr_union local;
         union in_addr_union remote;
         union in_addr_union group;

src/network/networkd.h

@@ -115,7 +115,7 @@ struct Address {
         Network *network;
         uint64_t section;
 
-        unsigned char family;
+        int family;
         unsigned char prefixlen;
         unsigned char scope;
         char *label;
@@ -133,7 +133,7 @@ struct Route {
         Network *network;
         uint64_t section;
 
-        unsigned char family;
+        int family;
         unsigned char dst_prefixlen;
         unsigned char scope;
         uint32_t metrics;
@@ -209,7 +209,7 @@ struct Link {
 struct AddressPool {
         Manager *manager;
 
-        unsigned family;
+        int family;
         unsigned prefixlen;
 
         union in_addr_union in_addr;
@@ -255,7 +255,7 @@ int manager_bus_listen(Manager *m);
 
 int manager_save(Manager *m);
 
-int manager_address_pool_acquire(Manager *m, unsigned family, unsigned prefixlen, union in_addr_union *found);
+int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found);
 
 DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
 #define _cleanup_manager_free_ _cleanup_(manager_freep)
@@ -390,8 +390,8 @@ int config_parse_dhcp(const char *unit, const char *filename, unsigned line,
 
 /* Address Pool */
 
-int address_pool_new(Manager *m, AddressPool **ret, unsigned family, const union in_addr_union *u, unsigned prefixlen);
-int address_pool_new_from_string(Manager *m, AddressPool **ret, unsigned family, const char *p, unsigned prefixlen);
+int address_pool_new(Manager *m, AddressPool **ret, int family, const union in_addr_union *u, unsigned prefixlen);
+int address_pool_new_from_string(Manager *m, AddressPool **ret, int family, const char *p, unsigned prefixlen);
 void address_pool_free(AddressPool *p);
 
 int address_pool_acquire(AddressPool *p, unsigned prefixlen, union in_addr_union *found);