Allow one to send empty strings with mysql_stmt_send_long_data()

mysql_stmt_reset() now resets param->long_data_used
Abort if --defaults-file=path-name uses a non-existing file (Bug #3413)
Fixed problem with symlink test (bug in 4.1.2)

1 files changed, 6 insertions, 0 deletions

diff --git a/mysys/default.c b/mysys/default.c
index d09b0dd97af..af67520322f 100644
--- a/mysys/default.c
+++ b/mysys/default.c
@@ -166,6 +166,12 @@ int load_defaults(const char *conf_file, const char **groups,
     if ((error= search_default_file(&args, &alloc, "",
 				    forced_default_file, "", &group)) < 0)
       goto err;
+    if (error > 0)
+    {
+      fprintf(stderr, "Could not open required defaults file: %s\n",
+              forced_default_file);
+      goto err;
+    }
   }
   else if (dirname_length(conf_file))
   {