BUG#12402794 - 60976: CRASH, VALGRIND WARNING AND MEMORY

               LEAK WITH PARTITIONED ARCHIVE TABLES

CHECK TABLE against archive table, when file descriptors
are exhausted, caused server crash.

Archive didn't handle errors when opening data file for
CHECK TABLE.

mysql-test/r/archive_debug.result

+#
+# BUG#12402794 - 60976: CRASH, VALGRIND WARNING AND MEMORY LEAK
+#                       WITH PARTITIONED ARCHIVE TABLES
+#
+CREATE TABLE t1(a INT) ENGINE=ARCHIVE;
+INSERT INTO t1 VALUES(1);
+SET SESSION debug='d,simulate_archive_open_failure';
+CHECK TABLE t1;
+Table	Op	Msg_type	Msg_text
+test.t1	check	error	Corrupt
+SET SESSION debug=DEFAULT;
+DROP TABLE t1;

mysql-test/t/archive_debug.test

+--source include/have_archive.inc
+--source include/have_debug.inc
+
+--echo #
+--echo # BUG#12402794 - 60976: CRASH, VALGRIND WARNING AND MEMORY LEAK
+--echo #                       WITH PARTITIONED ARCHIVE TABLES
+--echo #
+CREATE TABLE t1(a INT) ENGINE=ARCHIVE;
+INSERT INTO t1 VALUES(1);
+SET SESSION debug='d,simulate_archive_open_failure';
+CHECK TABLE t1;
+SET SESSION debug=DEFAULT;
+DROP TABLE t1;

storage/archive/azio.c

@@ -114,6 +114,15 @@ int az_open (azio_stream *s, const char *path, int Flags, File fd)
 
   errno = 0;
   s->file = fd < 0 ? my_open(path, Flags, MYF(0)) : fd;
+  DBUG_EXECUTE_IF("simulate_archive_open_failure",
+  {
+    if (s->file >= 0)
+    {
+      my_close(s->file, MYF(0));
+      s->file= -1;
+      my_errno= EMFILE;
+    }
+  });
 
   if (s->file < 0 ) 
   {

storage/archive/ha_archive.cc

@@ -1586,11 +1586,12 @@ int ha_archive::check(THD* thd, HA_CHECK_OPT* check_opt)
   azflush(&(share->archive_write), Z_SYNC_FLUSH);
   pthread_mutex_unlock(&share->mutex);
 
+  if (init_archive_reader())
+    DBUG_RETURN(HA_ADMIN_CORRUPT);
   /*
     Now we will rewind the archive file so that we are positioned at the 
     start of the file.
   */
-  init_archive_reader();
   read_data_header(&archive);
   while (!(rc= get_row(&archive, table->record[0])))
     count--;