diff options
Diffstat (limited to 'cpukit/libcsupport/src/open_dev_console.c')
| -rw-r--r-- | cpukit/libcsupport/src/open_dev_console.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/open_dev_console.c b/cpukit/libcsupport/src/open_dev_console.c new file mode 100644 index 0000000000..ce01a9276e --- /dev/null +++ b/cpukit/libcsupport/src/open_dev_console.c @@ -0,0 +1,51 @@ +/* + * open_dev_console - open /dev/console + * + * COPYRIGHT (c) 1989-2009. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems.h> +#include <rtems/libio.h> +#include <fcntl.h> + +/* + * This is a replaceable stub which opens the console, if present. + */ +void open_dev_console(void) +{ + int stdin_fd; + int stdout_fd; + int stderr_fd; + + /* + * Attempt to open /dev/console. + */ + if ((stdin_fd = open("/dev/console", O_RDONLY, 0)) == -1) { + /* + * There may not be a console driver so this is OK. + */ + return; + } + + /* + * But if we find /dev/console once, we better find it twice more + * or something is REALLY wrong. + */ + if ((stdout_fd = open("/dev/console", O_WRONLY, 0)) == -1) + rtems_fatal_error_occurred( 0x55544431 ); /* error STD1 */ + + if ((stderr_fd = open("/dev/console", O_WRONLY, 0)) == -1) + rtems_fatal_error_occurred( 0x55544432 ); /* error STD2 */ +} + |