[fusl] Update fusl

fusl/src/network/lookup.h

 #ifndef LOOKUP_H
 #define LOOKUP_H
 
 #include <stdint.h>
+#include <stddef.h>
 
 struct address {
         int family;
         unsigned scopeid;
         uint8_t addr[16];
         int sortkey;
 };
 
 struct service {
         uint16_t port;
         unsigned char proto, socktype;
 };
 
+#define MAXNS 3
+
+struct resolvconf {
+        struct address ns[MAXNS];
+        unsigned nns, attempts, ndots;
+        unsigned timeout;
+};
+
 /* The limit of 48 results is a non-sharp bound on the number of addresses
  * that can fit in one 512-byte DNS packet full of v4 results and a second
  * packet full of v6 results. Due to headers, the actual limit is lower. */
 #define MAXADDRS 48
 #define MAXSERVS 2
 
 int __lookup_serv(struct service buf[static MAXSERVS], const char *name, int proto, int socktype, int flags);
 int __lookup_name(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family, int flags);
 int __lookup_ipliteral(struct address buf[static 1], const char *name, int family);
 
+int __get_resolv_conf(struct resolvconf *, char *, size_t);
+
 #endif