Changes into src/editor directory:

* edit/editcmd.c:
  * ignore fscanf() result in edit_delete_macro()
  * ignore fscanf() result in edit_load_macro_cmd()
  * ignoring mc_chown() errors in edit_save_file()
  * handling system() call errors in edit_block_process_cmd()
 * edit/edit.c: handling read errors in edit_load_file_fast()

Signed-off-by: Slava Zanko <slavazanko@gmail.com>

src/editor/edit.c

@@ -328,6 +328,7 @@ edit_load_file_fast (WEdit * edit, const char *filename)
 {
     long buf, buf2;
     int file = -1;
+    int ret=1;
     edit->curs2 = edit->last_byte;
     buf2 = edit->curs2 >> S_EDIT_BUF_SIZE;
     edit->utf8 = 0;
@@ -343,20 +344,31 @@ edit_load_file_fast (WEdit * edit, const char *filename)
     if (!edit->buffers2[buf2])
         edit->buffers2[buf2] = g_malloc0 (EDIT_BUF_SIZE);
 
-    mc_read (file,
+    do
+    {
+    if (mc_read (file,
              (char *) edit->buffers2[buf2] + EDIT_BUF_SIZE -
-             (edit->curs2 & M_EDIT_BUF_SIZE), edit->curs2 & M_EDIT_BUF_SIZE);
+             (edit->curs2 & M_EDIT_BUF_SIZE), edit->curs2 & M_EDIT_BUF_SIZE) < 0)
+        break;
 
     for (buf = buf2 - 1; buf >= 0; buf--)
     {
         /* edit->buffers2[0] is already allocated */
         if (!edit->buffers2[buf])
             edit->buffers2[buf] = g_malloc0 (EDIT_BUF_SIZE);
-        mc_read (file, (char *) edit->buffers2[buf], EDIT_BUF_SIZE);
+        if (mc_read (file, (char *) edit->buffers2[buf], EDIT_BUF_SIZE) < 0)
+            break;
+    }
+    ret = 0;
+    }
+    while (0);
+    if (ret) {
+        char *err_str = g_strdup_printf(_(" Error reading %s "), filename);
+        edit_error_dialog (_("Error"), err_str);
+        g_free(err_str);
     }
-
     mc_close (file);
-    return 0;
+    return ret;
 }
 
 /* detecting an error on save is easy: just check if every byte has been written. */

src/editor/editcmd.c

@@ -273,9 +273,11 @@ edit_save_file (WEdit * edit, const char *filename)
     }
     else
         savename = g_strdup (real_filename);
-
+    {
-    mc_chown (savename, edit->stat1.st_uid, edit->stat1.st_gid);
+    int ret;
-    mc_chmod (savename, edit->stat1.st_mode);
+    ret = mc_chown (savename, edit->stat1.st_uid, edit->stat1.st_gid);
+    ret = mc_chmod (savename, edit->stat1.st_mode);
+    }
 
     if ((fd =
          mc_open (savename, O_CREAT | O_WRONLY | O_TRUNC | O_BINARY, edit->stat1.st_mode)) == -1)
@@ -757,7 +759,10 @@ edit_delete_macro (WEdit * edit, int k)
         n = 0;
         while (fscanf (f, "%lu %d, ", &macro[n].command, &macro[n].ch))
             n++;
-        fscanf (f, ";\n");
+        {
+        int ret;
+        ret = fscanf (f, ";\n");
+        }
         if (s != k)
         {
             fprintf (g, ("key '%d 0': "), s);
@@ -866,7 +871,10 @@ edit_load_macro_cmd (WEdit * edit, struct macro macro[], int *n, int k)
             {
                 while (2 == fscanf (f, "%lu %d, ", &dummy.command, &dummy.ch));
             }
-            fscanf (f, ";\n");
+            {
+            int ret;
+            ret = fscanf (f, ";\n");
+            }
             if (s == k)
                 found = 1;
         }
@@ -2503,8 +2511,6 @@ edit_block_process_cmd (WEdit * edit, const char *shell_cmd, int block)
          */
         tmp = g_strconcat (" ", home_dir, PATH_SEP_STR EDIT_DIR, shell_cmd, " ", quoted_name,
                            " ", home_dir, PATH_SEP_STR EDIT_BLOCK_FILE " /dev/null", (char *) NULL);
-        system (tmp);
-        g_free (tmp);
     }
     else
     {
@@ -2515,9 +2521,15 @@ edit_block_process_cmd (WEdit * edit, const char *shell_cmd, int block)
          */
         tmp = g_strconcat (" ", home_dir, PATH_SEP_STR EDIT_DIR, shell_cmd, " ",
                            quoted_name, (char *) NULL);
-        system (tmp);
-        g_free (tmp);
     }
+
+    if (system (tmp) == -1)
+    {
+        edit_error_dialog (_("Process block"),_("Error calling program"));
+    }
+    else
+    {
+
     g_free (quoted_name);
     close_error_pipe (D_NORMAL, NULL);
 
@@ -2532,6 +2544,8 @@ edit_block_process_cmd (WEdit * edit, const char *shell_cmd, int block)
         if (block_file != NULL)
             fclose (block_file);
     }
+    }
+    g_free (tmp);
 
   edit_block_process_cmd__EXIT:
     g_free (b);