Move test that uses many tables (in query_cache.test) to separate test so that we can get it 'skipped' instead of 'failed' on system where we can't open many files.

client/mysqltest.c:
  Fix that LET can be used with queries that return multiple columns
libmysql/errmsg.c:
  Extend socket name to 100 characters in error messages
libmysql/libmysql.c:
  Reset some variables to make ensure that we can call mysql_server_init()/mysql_server_end() many times
mysql-test/mysql-test-run.sh:
  Set open-files-limit to 1024
mysql-test/r/loaddata.result:
  Add test case for LOAD DATA bug report (was not a bug)
mysql-test/r/query_cache.result:
  Move test with many tables to separate test
mysql-test/r/select_safe.result:
  Make test repeatable
mysql-test/t/loaddata.test:
  Add test case for LOAD DATA bug report (was not a bug)
mysql-test/t/query_cache.test:
  Move test with many tables to separate test
mysql-test/t/select_safe.test:
  Make test repeatable
sql/field.cc:
  Portability fix for gcc 3.3
sql/mysqld.cc:
  Store in open_files_limit the true number of files we can open (if system supports it)
sql/sql_load.cc:
  Safety fix

mysql-test/mysql-test-run.sh

@@ -16,6 +16,9 @@ USE_MANAGER=0
 MY_TZ=GMT-3
 TZ=$MY_TZ; export TZ # for UNIX_TIMESTAMP tests to work
 
+# For query_cache test
+ulimit -n 1024
+
 #++
 # Program Definitions
 #--
@@ -829,7 +832,6 @@ start_master()
       /bin/sh $master_init_script
   fi
   cd $BASEDIR # for gcov
-  #start master
   if [ -z "$DO_BENCH" ]
   then
     master_args="--no-defaults --log-bin=$MYSQL_TEST_DIR/var/log/master-bin \
@@ -848,6 +850,7 @@ start_master()
           --tmpdir=$MYSQL_TMP_DIR \
           --language=$LANGUAGE \
           --innodb_data_file_path=ibdata1:50M \
+	  --open-files-limit=1024 \
 	   $MASTER_40_ARGS \
            $SMALL_SERVER \
            $EXTRA_MASTER_OPT $EXTRA_MASTER_MYSQLD_OPT"
@@ -1363,6 +1366,9 @@ fi
 
 $ECHO  "Starting Tests"
 
+#
+# This can probably be deleted
+#
 if [ "$DO_BENCH" = 1 ]
 then
   BENCHDIR=$BASEDIR/sql-bench/