From 87521fc8eff52fc4bc3bbb5a0ac80d81634bc1e0 Mon Sep 17 00:00:00 2001
From: Stef Walter <stef@memberwebs.com>
Date: Tue, 28 Nov 2006 01:54:16 +0000
Subject: Fixed asynchronous resolving on FreeBSD

---
 common/async-resolver.c | 8 ++++++--
 common/async-resolver.h | 2 +-
 daemon/snmp-engine.c    | 7 ++++++-
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/common/async-resolver.c b/common/async-resolver.c
index cf92c86..284a486 100644
--- a/common/async-resolver.c
+++ b/common/async-resolver.c
@@ -109,6 +109,7 @@ typedef struct _resolve_request
 {
     char hostname[256];
     char servname[256];
+    struct addrinfo hints;
     async_resolve_callback cb;
     void *arg;
 
@@ -164,7 +165,7 @@ resolver_thread(void* arg)
 
         /* The actual resolve */
         req->gaierr = getaddrinfo(req->hostname, req->servname[0] ? req->servname : NULL,
-                                 NULL, &req->ai);
+                                  &req->hints, &req->ai);
         req->errn = errno;
 
         /* A timeout */
@@ -255,7 +256,7 @@ async_resolver_init()
 
 void
 async_resolver_queue(const char* hostname, const char* servname,
-                     async_resolve_callback cb, void* arg)
+                     struct addrinfo* hints, async_resolve_callback cb, void* arg)
 {
     resolve_request* req;
     resolve_request* r;
@@ -287,6 +288,9 @@ async_resolver_queue(const char* hostname, const char* servname,
         strncpy(req->servname, servname, sizeof(req->servname));
     req->servname[sizeof(req->servname) - 1] = 0;
 
+    if(hints)
+        memcpy(&(req->hints), hints, sizeof(req->hints));
+
     /* Append the result to requests */
     pthread_mutex_lock(&res_mutex);
 
diff --git a/common/async-resolver.h b/common/async-resolver.h
index bc17735..a3be364 100644
--- a/common/async-resolver.h
+++ b/common/async-resolver.h
@@ -42,7 +42,7 @@ int  async_resolver_init();
 void async_resolver_uninit();
 
 void async_resolver_queue(const char* hostname, const char* servname,
-                          async_resolve_callback cb, void* arg);
+                          struct addrinfo* hints, async_resolve_callback cb, void* arg);
 
 
 #endif /* __ASYNC_RESOLVER_H__ */
diff --git a/daemon/snmp-engine.c b/daemon/snmp-engine.c
index 1d1b64a..65bc1de 100644
--- a/daemon/snmp-engine.c
+++ b/daemon/snmp-engine.c
@@ -637,6 +637,7 @@ static int
 resolve_timer(mstime when, void* arg)
 {
     rb_host* host;
+    struct addrinfo hints;
 
     /* Go through hosts and see which ones need resolving */
     for(host = g_state.hosts; host; host = host->next)
@@ -647,9 +648,13 @@ resolve_timer(mstime when, void* arg)
 
         if(when - host->resolve_interval > host->last_resolve_try)
         {
+            memset(&hints, 0, sizeof(hints));
+            hints.ai_family = PF_UNSPEC;
+            hints.ai_socktype = SOCK_DGRAM;
+
             /* Automatically strips port number */
             rb_messagex(LOG_DEBUG, "resolving host: %s", host->hostname);
-            async_resolver_queue(host->hostname, "161", resolve_cb, host);
+            async_resolver_queue(host->hostname, "161", &hints, resolve_cb, host);
             host->last_resolve_try = when;
         }
 
-- 
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