add inet_network (required for wine)

src/network/inet_network.c

@@ -0,0 +1,11 @@
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include "__dns.h"
+
+in_addr_t inet_network(const char *p)
+{
+        struct sockaddr_in sin;
+        if (__ipparse(&sin, AF_INET, p)) return -1;
+        return ntohl(sin.sin_addr.s_addr);
+}