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-rw-r--r--src/or/connection_edge.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/or/connection_edge.c b/src/or/connection_edge.c
index 78991185b..8950137c2 100644
--- a/src/or/connection_edge.c
+++ b/src/or/connection_edge.c
@@ -711,7 +711,7 @@ client_dns_clear_failures(const char *address)
* ".exitname.exit" before registering the mapping.
*
* If <b>ttl</b> is nonnegative, the mapping will be valid for
- * <b>ttl</b>seconds.
+ * <b>ttl</b>seconds; otherwise, we use the default.
*/
void
client_dns_set_addressmap(const char *address, uint32_t val,
@@ -728,7 +728,10 @@ client_dns_set_addressmap(const char *address, uint32_t val,
tor_assert(address);
tor_assert(val);
- ttl = dns_clip_ttl(ttl);
+ if (ttl<0)
+ ttl = DEFAULT_DNS_TTL;
+ else
+ ttl = dns_clip_ttl(ttl);
if (tor_inet_aton(address, &in))
return; /* If address was an IP address already, don't add a mapping. */