diff options
Diffstat (limited to 'lib/hostip.c')
| -rw-r--r-- | lib/hostip.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/hostip.c b/lib/hostip.c index f589a0b2c..89b88e932 100644 --- a/lib/hostip.c +++ b/lib/hostip.c @@ -312,6 +312,26 @@ fetch_addr(struct connectdata *conn, /* See if its already in our dns cache */ dns = Curl_hash_pick(data->dns.hostcache, entry_id, entry_len + 1); + /* No entry found in cache, check if we might have a wildcard entry */ + if(!dns && data->change.wildcard_resolve) { + /* + * Free the previous entry_id before requesting a new one to avoid leaking + * memory + */ + free(entry_id); + + entry_id = create_hostcache_id("*", port); + + /* If we can't create the entry id, fail */ + if(!entry_id) + return dns; + + entry_len = strlen(entry_id); + + /* See if it's already in our dns cache */ + dns = Curl_hash_pick(data->dns.hostcache, entry_id, entry_len + 1); + } + if(dns && (data->set.dns_cache_timeout != -1)) { /* See whether the returned entry is stale. Done before we release lock */ struct hostcache_prune_data user; @@ -872,6 +892,9 @@ CURLcode Curl_loadhostpairs(struct Curl_easy *data) char hostname[256]; int port = 0; + /* Default is no wildcard found */ + data->change.wildcard_resolve = false; + for(hostp = data->change.resolve; hostp; hostp = hostp->next) { if(!hostp->data) continue; @@ -1052,6 +1075,13 @@ CURLcode Curl_loadhostpairs(struct Curl_easy *data) } infof(data, "Added %s:%d:%s to DNS cache\n", hostname, port, addresses); + + /* Wildcard hostname */ + if(hostname[0] == '*' && hostname[1] == '\0') { + infof(data, "RESOLVE %s:%d is wildcard, enabling wildcard checks\n", + hostname, port); + data->change.wildcard_resolve = true; + } } } data->change.resolve = NULL; /* dealt with now */ |