X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Faddress_cache.c;h=b6d48d02be12485466b60815bc29e3e7dc164018;hp=552e1f2885a62c1fea7017ca92dde2b5b883b31a;hb=1cf2b56fcc57073d952928da2338bdaff2cb7889;hpb=04543a57e73e29c3e2a1968fd330f03c94dd6059

diff --git a/src/address_cache.c b/src/address_cache.c
index 552e1f28..b6d48d02 100644
--- a/src/address_cache.c
+++ b/src/address_cache.c
@@ -85,14 +85,16 @@ void add_recent_address(address_cache_t *cache, const sockaddr_t *sa) {
 	unsigned int pos = find_cached(cache, sa);
 
 	// It's in the first spot, so nothing to do
-	if (pos == 0) {
+	if(pos == 0) {
 		return;
 	}
 
 	// Shift everything, move/add the address to the first slot
 	if(pos == NOT_CACHED) {
-		if(cache->data.used < MAX_CACHED_ADDRESSES)
+		if(cache->data.used < MAX_CACHED_ADDRESSES) {
 			cache->data.used++;
+		}
+
 		pos = cache->data.used - 1;
 	}
 
@@ -106,7 +108,6 @@ void add_recent_address(address_cache_t *cache, const sockaddr_t *sa) {
 	FILE *fp = fopen(fname, "wb");
 
 	if(fp) {
-		fprintf(stderr, "Writing cache to %s\n", fname);
 		fwrite(&cache->data, sizeof(cache->data), 1, fp);
 		fclose(fp);
 	}
@@ -126,13 +127,13 @@ const sockaddr_t *get_recent_address(address_cache_t *cache) {
 
 		if(cache->ai) {
 			if(cache->aip) {
-				sockaddr_t *sa = (sockaddr_t *)cache->aip;
+				sockaddr_t *sa = (sockaddr_t *)cache->aip->ai_addr;
+				cache->aip = cache->aip->ai_next;
 
 				if(find_cached(cache, sa) != NOT_CACHED) {
 					continue;
 				}
 
-				cache->aip = cache->aip->ai_next;
 				return sa;
 			} else {
 				free_known_addresses(cache->ai);
@@ -150,7 +151,7 @@ const sockaddr_t *get_recent_address(address_cache_t *cache) {
 		cache->cfg = lookup_config(cache->config_tree, "Address");
 	}
 
-	while(cache->cfg && !cache->ai) {
+	while(cache->cfg && !cache->aip) {
 		char *address, *port;
 
 		get_config_string(cache->cfg, &address);
@@ -166,23 +167,48 @@ const sockaddr_t *get_recent_address(address_cache_t *cache) {
 			}
 		}
 
+		if(cache->ai) {
+			free_known_addresses(cache->ai);
+		}
+
 		cache->aip = cache->ai = str2addrinfo(address, port, SOCK_STREAM);
+
+		if(cache->ai) {
+			struct addrinfo *ai = NULL;
+
+			for(; cache->aip; cache->aip = cache->aip->ai_next) {
+				struct addrinfo *oai = ai;
+
+				ai = xzalloc(sizeof(*ai));
+				ai->ai_family = cache->aip->ai_family;
+				ai->ai_socktype = cache->aip->ai_socktype;
+				ai->ai_protocol = cache->aip->ai_protocol;
+				ai->ai_addrlen = cache->aip->ai_addrlen;
+				ai->ai_addr = xmalloc(ai->ai_addrlen);
+				memcpy(ai->ai_addr, cache->aip->ai_addr, ai->ai_addrlen);
+				ai->ai_next = oai;
+			}
+
+			freeaddrinfo(cache->ai);
+			cache->aip = cache->ai = ai;
+		}
+
 		free(address);
 		free(port);
 
 		cache->cfg = lookup_config_next(cache->config_tree, cache->cfg);
 	}
 
-	if(cache->aip) {
-		sockaddr_t *sa = (sockaddr_t *)cache->aip->ai_addr;
-		cache->aip = cache->aip->ai_next;
+	if(cache->ai) {
+		if(cache->aip) {
+			sockaddr_t *sa = (sockaddr_t *)cache->aip->ai_addr;
 
-		if(!cache->aip) {
-			freeaddrinfo(cache->aip);
-			cache->aip = NULL;
+			cache->aip = cache->aip->ai_next;
+			return sa;
+		} else {
+			free_known_addresses(cache->ai);
+			cache->ai = NULL;
 		}
-
-		return sa;
 	}
 
 	// We're all out of addresses.
@@ -232,11 +258,7 @@ void reset_address_cache(address_cache_t *cache, const sockaddr_t *sa) {
 	}
 
 	if(cache->ai) {
-		if(cache->tried == cache->data.used) {
-			free_known_addresses(cache->ai);
-		} else {
-			freeaddrinfo(cache->ai);
-		}
+		free_known_addresses(cache->ai);
 	}
 
 	cache->config_tree = NULL;
@@ -252,11 +274,7 @@ void close_address_cache(address_cache_t *cache) {
 	}
 
 	if(cache->ai) {
-		if(cache->tried == cache->data.used) {
-			free_known_addresses(cache->ai);
-		} else {
-			freeaddrinfo(cache->ai);
-		}
+		free_known_addresses(cache->ai);
 	}
 
 	free(cache);