[coverity] a couple of fixes

src/bottom_status_source.hh

@@ -211,7 +211,7 @@ public:
     {
         status_field &sf = this->bss_fields[BSF_LOADING];
 
-        if ((size_t)off == total) {
+        if (total == 0 || (size_t)off == total) {
             sf.set_role(view_colors::VCR_STATUS);
             sf.clear();
         }

src/logfile_sub_source.hh

@@ -366,7 +366,8 @@ public:
         logfile_data(size_t index, filter_stack &fs, logfile *lf)
             : ld_file_index(index),
               ld_filter_state(fs, lf),
-              ld_lines_indexed(0) {
+              ld_lines_indexed(0),
+              ld_enabled(true) {
             lf->set_logline_observer(&this->ld_filter_state);
         };
 
@@ -375,6 +376,10 @@ public:
             this->ld_filter_state.lfo_filter_state.clear();
         };
 
+        void set_enabled(bool enabled) {
+            this->ld_enabled = enabled;
+        }
+
         void set_file(logfile *lf) {
             this->ld_filter_state.lfo_filter_state.tfs_logfile = lf;
             lf->set_logline_observer(&this->ld_filter_state);
@@ -389,6 +394,7 @@ public:
             content_line_t ld_start;
             content_line_t ld_last;
         } ld_indexing;
+        bool ld_enabled;
     };
 
     typedef std::vector<logfile_data *>::iterator iterator;

src/network-extension-functions.cc

@@ -79,6 +79,10 @@ static void sql_gethostbyname(sqlite3_context *context,
     case AF_INET6:
         addr_ptr = &((struct sockaddr_in6 *)ai->ai_addr)->sin6_addr;
         break;
+
+        default:
+            sqlite3_result_error(context, "unknown address family", -1);
+            return;
     }
 
     inet_ntop(ai->ai_family, addr_ptr, buffer, sizeof(buffer));

src/session_data.cc

@@ -798,7 +798,7 @@ void load_session(void)
     }
     else {
         unsigned char buffer[1024];
-        size_t        rc;
+        ssize_t        rc;
 
         log_info("loading session file: %s", view_info_name.c_str());
         while ((rc = read(fd, buffer, sizeof(buffer))) > 0) {