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authorJoel Sherrill <joel.sherrill@OARcorp.com>2007-06-20 22:20:32 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2007-06-20 22:20:32 +0000
commit442e430ddcc94536705b3fef428f7aa71dc7e112 (patch)
treeea9299bd1409e991c1910958ad4b62d6329da11c /cpukit/libcsupport/src/open_dev_console.c
parent2007-06-20 Ray Xu <rayx@gmail.com> (diff)
downloadrtems-442e430ddcc94536705b3fef428f7aa71dc7e112.tar.bz2
2007-06-20 Joel Sherrill <joel.sherrill@OARcorp.com>
* libcsupport/Makefile.am: * libcsupport/src/open_dev_console.c: New file.
Diffstat (limited to 'cpukit/libcsupport/src/open_dev_console.c')
-rw-r--r--cpukit/libcsupport/src/open_dev_console.c51
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..4606c1f15f
--- /dev/null
+++ b/cpukit/libcsupport/src/open_dev_console.c
@@ -0,0 +1,51 @@
+/*
+ * open_dev_console - open /dev/console
+ *
+ * COPYRIGHT (c) 1989-2007.
+ * 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
+ */
+
+void open_dev_console(void)
+{
+ int stdin_fd, stdout_fd, stderr_fd;
+ int error_code = 'S' << 24 | 'T' << 16 | 'D' << 8;
+
+ /*
+ * 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( error_code | '1' );
+
+ if ((stderr_fd = open("/dev/console", O_WRONLY, 0)) == -1)
+ rtems_fatal_error_occurred( error_code | '2' );
+}
+