- corrected bug in sim mode

tecs/six.c

@@ -587,6 +587,7 @@ int main (int argc, char *argv[]) {
   char *pnam[4]={"0", "MANAGER", "user", "spy"};
   char *hostArg;
   char *subcmd;
+  char *service;
   
   atexit(term_off);
   port=-1;
@@ -664,7 +665,12 @@ int main (int argc, char *argv[]) {
       }
     }
   }
-  home = InstrHost(servername, hostArg, instr, sizeof instr
+  if (*sim != '\0') {
+    service = "simsics";
+  } else {
+    service = servername;
+  }
+  home = InstrHost(service, hostArg, instr, sizeof instr
                   , host, sizeof host, &port);
   ent = gethostbyname(host);
   if (!ent) {
@@ -885,6 +891,8 @@ int main (int argc, char *argv[]) {
       if (iret == sock[0] || iret == sock[1]) {
         ERR_P(p=readWrite(500,0,NULL));
       }
+    } else if (iret<0) {
+      ERR_MSG("term_get_line failed");
     }
     if (strcmp(p, "0") == 0) {
       term_clear();