Bug#18207212 : FILE NAME IS NOT ESCAPED IN BINLOG FOR LOAD DATA INFILE STATEMENT

Problem:
Load_log_event::print_query() function does not put escape character in file name 
for "LOAD DATA INFILE" statement.

Analysis:
When we have "'" in our file name for "LOAD DATA INFILE" statement,
Load_log_event::print_query() function does not put escape character 
in our file name.

This one result that when we show binary-log, we get file name without 
escape character.

Solution:
To put escape character when we have "'" in file name, for this instead of using 
simple memcpy() to put file-name, we will use pretty_print_str().

mysys/mf_iocache2.c

-/* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
+/* Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -408,6 +408,13 @@ size_t my_b_vprintf(IO_CACHE *info, const char* fmt, va_list args)
       if (my_b_write(info, (uchar*) par, length2))
 	goto err;
     }
+    else if (*fmt == 'c')                     /* char type parameter */
+    {
+      char par[2];
+      par[0] = va_arg(args, int);
+      if (my_b_write(info, (uchar*) par, 1))
+        goto err;
+    }
     else if (*fmt == 'b')                       /* Sized buffer parameter, only precision makes sense */
     {
       char *par = va_arg(args, char *);

sql/log_event.cc

@@ -4384,7 +4384,7 @@ uint Load_log_event::get_query_buffer_length()
   return
     //the DB name may double if we escape the quote character
     5 + 2*db_len + 3 +
-    18 + fname_len + 2 +                    // "LOAD DATA INFILE 'file''"
+    18 + fname_len*4 + 2 +                    // "LOAD DATA INFILE 'file''"
     11 +                                    // "CONCURRENT "
     7 +					    // LOCAL
     9 +                                     // " REPLACE or IGNORE "
@@ -4430,9 +4430,9 @@ void Load_log_event::print_query(bool need_db, const char *cs, char *buf,
 
   if (check_fname_outside_temp_buf())
     pos= strmov(pos, "LOCAL ");
-  pos= strmov(pos, "INFILE '");
-  memcpy(pos, fname, fname_len);
-  pos= strmov(pos+fname_len, "' ");
+  pos= strmov(pos, "INFILE ");
+  pos= pretty_print_str(pos, fname, fname_len);
+  pos= strmov(pos, " ");
 
   if (sql_ex.opt_flags & REPLACE_FLAG)
     pos= strmov(pos, "REPLACE ");
@@ -7339,9 +7339,9 @@ void Execute_load_query_log_event::print(FILE* file,
   if (local_fname)
   {
     my_b_write(&cache, (uchar*) query, fn_pos_start);
-    my_b_printf(&cache, " LOCAL INFILE \'");
-    my_b_printf(&cache, "%s", local_fname);
-    my_b_printf(&cache, "\'");
+    my_b_printf(&cache, " LOCAL INFILE ");
+    pretty_print_str(&cache, local_fname, strlen(local_fname));
+
     if (dup_handling == LOAD_DUP_REPLACE)
       my_b_printf(&cache, " REPLACE");
     my_b_printf(&cache, " INTO");