Added empty get_safemode_option() call - right now, it's even private

and only the syscall is exported.
For now, it always returns B_ENTRY_NOT_FOUND - since the boot loader
does not have support for driver settings yet.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10237 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/core/device_manager/Jamfile

@@ -16,6 +16,7 @@ KernelMergeObject kernel_device_manager.o :
 	registration.c
 	root_node.c
 	scan.c
+	settings.cpp
 	:
 	-fno-pic -Wno-unused -D_KERNEL_MODE
 	;

src/kernel/core/device_manager/settings.cpp

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2004, Axel Dörfler, [email protected]. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ */
+
+
+#include <KernelExport.h>
+
+#include <kernel.h>
+#include <syscalls.h>
+
+
+static status_t
+get_safemode_option(const char *parameter, char *buffer, size_t *_bufferSize)
+{
+	// ToDo: implement me for real!
+	//	We could also think about making this available in the kernel (by making it non-static)
+
+	return B_ENTRY_NOT_FOUND;
+}
+
+
+//	#pragma mark -
+
+
+extern "C" status_t
+_user_get_safemode_option(const char *userParameter, char *userBuffer, size_t *_userBufferSize)
+{
+	char parameter[B_FILE_NAME_LENGTH];
+	char buffer[B_PATH_NAME_LENGTH];
+	size_t bufferSize;
+
+	if (!IS_USER_ADDRESS(userParameter) || !IS_USER_ADDRESS(userBuffer)
+		|| !IS_USER_ADDRESS(_userBufferSize)
+		|| user_memcpy(&bufferSize, _userBufferSize, sizeof(size_t)) < B_OK
+		|| user_strlcpy(parameter, userParameter, B_FILE_NAME_LENGTH) < B_OK)
+		return B_BAD_ADDRESS;
+
+	if (bufferSize > B_PATH_NAME_LENGTH)
+		bufferSize = B_PATH_NAME_LENGTH;
+
+	status_t status = get_safemode_option(parameter, buffer, &bufferSize);
+
+	if (user_strlcpy(userBuffer, buffer, bufferSize) < B_OK
+		|| user_memcpy(_userBufferSize, &bufferSize, sizeof(size_t)) < B_OK)
+		return B_BAD_ADDRESS;
+
+	return status;
+}