diff --git a/libc/dns/include/resolv_params.h b/libc/dns/include/resolv_params.h
index f6948c0..5ee265f 100644
--- a/libc/dns/include/resolv_params.h
+++ b/libc/dns/include/resolv_params.h
@@ -20,8 +20,10 @@
 #include <stdint.h>
 
 /* Hard-coded defines */
-#define	MAXNS			4	/* max # name servers we'll track */
-#define	MAXNSSAMPLES		64	/* max # samples to store per server */
+#define MAXNS			4	/* max # name servers we'll track */
+#define MAXDNSRCH		6	/* max # domains in search path */
+#define MAXDNSRCHPATH		256	/* max length of domain search paths */
+#define MAXNSSAMPLES		64	/* max # samples to store per server */
 
 /* Defaults used for initializing __res_params */
 #define SUCCESS_THRESHOLD	75	/* if successes * 100 / total_samples is less than
diff --git a/libc/dns/include/resolv_private.h b/libc/dns/include/resolv_private.h
index 8cdcc2e..3ab8ea6 100644
--- a/libc/dns/include/resolv_private.h
+++ b/libc/dns/include/resolv_private.h
@@ -140,7 +140,6 @@
  * Global defines and variables for resolver stub.
  */
 #define	MAXDFLSRCH		3	/* # default domain levels to try */
-#define	MAXDNSRCH		6	/* max # domains in search path */
 #define	LOCALDOMAINPARTS	2	/* min levels in name that is "local" */
 
 #define	RES_TIMEOUT		5	/* min. seconds between retries */
diff --git a/libc/dns/include/resolv_stats.h b/libc/dns/include/resolv_stats.h
index aaf6bd8..c7901d7 100644
--- a/libc/dns/include/resolv_stats.h
+++ b/libc/dns/include/resolv_stats.h
@@ -17,6 +17,7 @@
 #ifndef _RES_STATS_H
 #define _RES_STATS_H
 
+#include <sys/socket.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <time.h>
@@ -46,18 +47,13 @@
 };
 
 /* Calculate the round-trip-time from start time t0 and end time t1. */
-int
+extern int
 _res_stats_calculate_rtt(const struct timespec* t1, const struct timespec* t0);
 
 /* Initialize a sample for calculating server reachability statistics. */
 extern void
 _res_stats_set_sample(struct __res_sample* sample, time_t now, int rcode, int rtt);
 
-/* Aggregates the reachability statistics for the given server based on on the stored samples. */
-extern void
-_res_stats_aggregate(struct __res_stats* stats, int* successes, int* errors, int* timeouts,
-             int* internal_errors, int* rtt_avg, time_t* last_sample_time);
-
 /* Returns true if the server is considered unusable, i.e. if the success rate is not lower than the
  * threshold for the stored stored samples. If not enough samples are stored, the server is
  * considered usable.
@@ -65,9 +61,24 @@
 extern bool
 _res_stats_usable_server(const struct __res_params* params, struct __res_stats* stats);
 
+__BEGIN_DECLS
+/* Aggregates the reachability statistics for the given server based on on the stored samples. */
+extern void
+android_net_res_stats_aggregate(struct __res_stats* stats, int* successes, int* errors,
+        int* timeouts, int* internal_errors, int* rtt_avg, time_t* last_sample_time)
+    __attribute__((visibility ("default")));
+
+extern int
+android_net_res_stats_get_info_for_net(unsigned netid, int* nscount,
+        struct sockaddr_storage servers[MAXNS], int* dcount, char domains[MAXDNSRCH][MAXDNSRCHPATH],
+        struct __res_params* params, struct __res_stats stats[MAXNS])
+    __attribute__((visibility ("default")));
+
 /* Returns an array of bools indicating which servers are considered good */
 extern void
-_res_stats_get_usable_servers(const struct __res_params* params, struct __res_stats stats[],
-        int nscount, bool valid_servers[]);
+android_net_res_stats_get_usable_servers(const struct __res_params* params,
+        struct __res_stats stats[], int nscount, bool valid_servers[])
+    __attribute__((visibility ("default")));
+__END_DECLS
 
 #endif  // _RES_STATS_H