diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/hostip.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/lib/hostip.c b/lib/hostip.c index c2f9defd9..d809578e1 100644 --- a/lib/hostip.c +++ b/lib/hostip.c @@ -1010,24 +1010,28 @@ CURLcode Curl_loadhostpairs(struct Curl_easy *data) /* See if its already in our dns cache */ dns = Curl_hash_pick(data->dns.hostcache, entry_id, entry_len + 1); + if(dns) { + infof(data, "RESOLVE %s:%d is - old addresses discarded!\n", + hostname, port); + /* delete old entry entry, there are two reasons for this + 1. old entry may have different addresses. + 2. even if entry with correct addresses is already in the cache, + but if it is close to expire, then by the time next http + request is made, it can get expired and pruned because old + entry is not necessarily marked as added by CURLOPT_RESOLVE. */ + + Curl_hash_delete(data->dns.hostcache, entry_id, entry_len + 1); + } /* free the allocated entry_id again */ free(entry_id); - if(!dns) { - /* if not in the cache already, put this host in the cache */ - dns = Curl_cache_addr(data, head, hostname, port); - if(dns) { - dns->timestamp = 0; /* mark as added by CURLOPT_RESOLVE */ - /* release the returned reference; the cache itself will keep the - * entry alive: */ - dns->inuse--; - } - } - else { - /* this is a duplicate, free it again */ - infof(data, "RESOLVE %s:%d is already cached, %s not stored!\n", - hostname, port, addresses); - Curl_freeaddrinfo(head); + /* put this new host in the cache */ + dns = Curl_cache_addr(data, head, hostname, port); + if(dns) { + dns->timestamp = 0; /* mark as added by CURLOPT_RESOLVE */ + /* release the returned reference; the cache itself will keep the + * entry alive: */ + dns->inuse--; } if(data->share) |