revert of mass delete of the posix subsystem. perhaps there is hope for it yet.

svn path=/trunk/; revision=3674

posix/include/psx/path.h

@@ -0,0 +1,112 @@
+/* $Id: path.h,v 1.4 2002/10/29 04:45:13 rex Exp $
+ */
+/*
+ * psx/path.h
+ *
+ * POSIX+ subsystem path functions
+ *
+ * This file is part of the ReactOS Operating System.
+ *
+ * Contributors:
+ *  Created by KJK::Hyperion <noog@libero.it>
+ *
+ *  THIS SOFTWARE IS NOT COPYRIGHTED
+ *
+ *  This source code is offered for use in the public domain. You may
+ *  use, modify or distribute it freely.
+ *
+ *  This code is distributed in the hope that it will be useful but
+ *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
+ *  DISCLAMED. This includes but is not limited to warranties of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+#ifndef __PSX_PATH_H_INCLUDED__
+#define __PSX_PATH_H_INCLUDED__
+
+/* INCLUDES */
+#include <ddk/ntddk.h>
+
+/* OBJECTS */
+
+/* TYPES */
+
+/* CONSTANTS */
+
+/* PROTOTYPES */
+BOOLEAN
+__PdxPosixPathGetNextComponent_U
+(
+ IN UNICODE_STRING PathName,
+ IN OUT PUNICODE_STRING PathComponent,
+ OUT PBOOLEAN TrailingDelimiter OPTIONAL
+);
+
+BOOLEAN
+__PdxPosixPathResolve_U
+(
+ IN UNICODE_STRING PathName,
+ OUT PUNICODE_STRING ResolvedPathName,
+ IN WCHAR PathDelimiter OPTIONAL
+);
+
+BOOLEAN
+__PdxPosixPathGetNextComponent_A
+(
+ IN ANSI_STRING PathName,
+ IN OUT PANSI_STRING PathComponent,
+ OUT PBOOLEAN TrailingDelimiter OPTIONAL
+);
+
+BOOLEAN
+__PdxPosixPathResolve_A
+(
+ IN ANSI_STRING PathName,
+ OUT PANSI_STRING ResolvedPathName,
+ IN CHAR PathDelimiter OPTIONAL
+);
+
+BOOLEAN
+__PdxPosixPathNameToNtPathName
+(
+ IN PWCHAR PosixPath,
+	OUT PUNICODE_STRING NativePath,
+	IN PUNICODE_STRING CurDir OPTIONAL,
+ IN PUNICODE_STRING RootDir OPTIONAL
+);
+
+/* MACROS */
+/* returns non-zero if the argument is a path delimiter */
+#define IS_CHAR_DELIMITER_U(WCH) (((WCH) == L'/') || ((WCH) == L'\\'))
+#define IS_CHAR_DELIMITER_A(CH)  (((CH) == '/') || ((CH) == '\\'))
+
+/* returns non-zero if the argument is an empty path component */
+#define IS_COMPONENT_EMPTY_U(WCOMPONENT) (WCOMPONENT.Length == 0)
+#define IS_COMPONENT_EMPTY_A(COMPONENT)  (COMPONENT.Length == 0)
+
+/* returns non-zero if the argument is "." */
+#define IS_COMPONENT_DOT_U(WCOMPONENT) \
+((WCOMPONENT.Length == sizeof(WCHAR)) && (WCOMPONENT.Buffer[0] == L'.'))
+
+#define IS_COMPONENT_DOT_A(COMPONENT) \
+((COMPONENT.Length == 1) && (COMPONENT.Buffer[0] == '.'))
+
+/* returns non-zero if the argument is ".." */
+#define IS_COMPONENT_DOTDOT_U(WCOMPONENT) \
+( \
+ (WCOMPONENT.Length == (sizeof(WCHAR) * 2)) && \
+ (WCOMPONENT.Buffer[0] == L'.') && \
+ (WCOMPONENT.Buffer[1] == L'.') \
+)
+
+#define IS_COMPONENT_DOTDOT_A(COMPONENT) \
+( \
+ (COMPONENT.Length == 2) && \
+ (COMPONENT.Buffer[0] == '.') && \
+ (COMPONENT.Buffer[1] == '.') \
+)
+
+#endif /* __PSX_PATH_H_INCLUDED__ */
+
+/* EOF */
+