lib-imap: Fixed crash in IDLE for non-TCP connections.

diff --git a/src/lib-imap/imap-keepalive.c b/src/lib-imap/imap-keepalive.c
index 4424b53dee16fc0f58866c96ac3c6a3d19e775b6..3827081c6c58ba9aaac800db89ed6241c4af4234 100644 (file)
--- a/src/lib-imap/imap-keepalive.c
+++ b/src/lib-imap/imap-keepalive.c
@@ -42,7 +42,7 @@ imap_keepalive_interval_msecs(const char *username, const struct ip_addr *ip,
 {
        unsigned int client_hash;
 
-       client_hash = imap_remote_ip_is_usable(ip) ?
+       client_hash = ip != NULL && imap_remote_ip_is_usable(ip) ?
                net_ip_hash(ip) : crc32_str(username);
        interval_secs -= (time(NULL) + client_hash) % interval_secs;
        return interval_secs * 1000;