Fixed Issue 76 (redis-server crashes when it can't connect to MASTER and client connects to SLAVE)

TODO

@@ -10,6 +10,7 @@ VERSION 1.1 TODO
 VERSION 1.2 TODO
 
 * Basic Redis-cluster (at least all the features of the Ruby client distribute implementation + ability to set every key in M nodes).
+* Append mode log
 * Hashes (HSET, HGET, HEXISTS, HLEN, ...).
 * An utility able to export an .rdb file into a text-only JSON dump, we can't live anymore without such a tool. Probably an extension to redis-cli.
 

redis.c

@@ -4648,7 +4648,7 @@ static void infoCommand(redisClient *c) {
             server.masterport,
             (server.replstate == REDIS_REPL_CONNECTED) ?
                 "up" : "down",
-            (int)(time(NULL)-server.master->lastinteraction)
+            server.master ? ((int)(time(NULL)-server.master->lastinteraction)) : -1
         );
     }
     for (j = 0; j < server.dbnum; j++) {