libtests/devfs04/init.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  *  COPYRIGHT (c) 1989-2012.
0005  *  On-Line Applications Research Corporation (OAR).
0006  *
0007  * Redistribution and use in source and binary forms, with or without
0008  * modification, are permitted provided that the following conditions
0009  * are met:
0010  * 1. Redistributions of source code must retain the above copyright
0011  *    notice, this list of conditions and the following disclaimer.
0012  * 2. Redistributions in binary form must reproduce the above copyright
0013  *    notice, this list of conditions and the following disclaimer in the
0014  *    documentation and/or other materials provided with the distribution.
0015  *
0016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0019  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0020  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0022  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0023  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0024  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0025  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0026  * POSSIBILITY OF SUCH DAMAGE.
0027  */
0028
0029 #ifdef HAVE_CONFIG_H
0030 #include "config.h"
0031 #endif
0032
0033 #include <tmacros.h>
0034 #include "test_support.h"
0035 #include <errno.h>
0036 #include <unistd.h>
0037 #include <sys/types.h>
0038 #include <sys/stat.h>
0039 #include <sys/ioctl.h>
0040 #include <fcntl.h>
0041 #include "test_driver.h"
0042
0043 const char rtems_test_name[] = "DEVFS 4";
0044
0045 static rtems_task Init(
0046   rtems_task_argument argument
0047 )
0048 {
0049   int status;
0050   int fdr = 0, fdw = 0;
0051   char buf[10];
0052
0053   TEST_BEGIN();
0054
0055   puts( "Init - attempt to open the /dev/test WR mode -- OK" );
0056   fdw = open( "/dev/test", O_WRONLY );
0057   rtems_test_assert( fdw != -1 );
0058
0059   puts( "Init - attempt to write to /dev/test -- OK" );
0060   status = write( fdw, "data", 5 );
0061   rtems_test_assert( status == 5 );
0062
0063   puts( "Init - attempt to write to /dev/test - expect ENOSYS" );
0064   status = write( fdw, "data", 10 );
0065   rtems_test_assert( status == -1 );
0066   rtems_test_assert( errno == ENOSYS );
0067
0068   puts( "Init - attempt to open the /dev/test RD mode -- OK" );
0069   fdr = open( "/dev/test", O_RDONLY );
0070   rtems_test_assert( fdr != -1 );
0071
0072   puts( "Init - attempt to read from /dev/test -- OK" );
0073   status = read( fdr, buf, 5 );
0074   rtems_test_assert( status == 0 );
0075
0076   puts( "Init - attempt to read from /dev/test - expect ENOSYS" );
0077   status = read( fdr, buf, 10 );
0078   rtems_test_assert( status == -1 );
0079   rtems_test_assert( errno == ENOSYS );
0080
0081   puts( "Init - attempt ioctl on the device - expect ENOSYS" );
0082   status = ioctl( fdr, -1 );
0083   rtems_test_assert( status == -1 );
0084   rtems_test_assert( errno == ENOSYS );
0085
0086   puts( "Init - mknod(/dev/null)-- OK" );
0087   status = mknod( "/dev/null", 0777 | S_IFCHR, 0LL );
0088   rtems_test_assert( status == 0 );
0089
0090   TEST_END();
0091   rtems_test_exit(0);
0092 }
0093
0094 /* configuration information */
0095
0096 #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
0097 #define CONFIGURE_APPLICATION_EXTRA_DRIVERS TEST_DRIVER_TABLE_ENTRY
0098
0099 #define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 2
0100
0101 #define CONFIGURE_MAXIMUM_TASKS             1
0102 #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
0103
0104 #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
0105
0106 #define CONFIGURE_USE_DEVFS_AS_BASE_FILESYSTEM
0107
0108 #define CONFIGURE_INIT
0109 #include <rtems/confdefs.h>
0110 /* end of file */