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72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/**
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* @file dll/path.c
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*
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* @copyright 2015-2017 Bill Zissimopoulos
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*/
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/*
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* This file is part of WinFsp.
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*
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* You can redistribute it and/or modify it under the terms of the GNU
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* General Public License version 3 as published by the Free Software
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* Foundation.
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*
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* Licensees holding a valid commercial license may use this file in
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* accordance with the commercial license agreement provided with the
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* software.
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*/
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#include <dll/library.h>
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FSP_API VOID FspPathPrefix(PWSTR Path, PWSTR *PPrefix, PWSTR *PRemain, PWSTR Root)
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{
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PWSTR Pointer;
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for (Pointer = Path; *Pointer; Pointer++)
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if (L'\\' == *Pointer)
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{
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if (0 != Root && Path == Pointer)
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Path = Root;
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*Pointer++ = L'\0';
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for (; L'\\' == *Pointer; Pointer++)
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;
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break;
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}
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*PPrefix = Path;
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*PRemain = Pointer;
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}
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FSP_API VOID FspPathSuffix(PWSTR Path, PWSTR *PRemain, PWSTR *PSuffix, PWSTR Root)
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{
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PWSTR Pointer, RemainEnd, Suffix = 0;
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for (Pointer = Path; *Pointer;)
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if (L'\\' == *Pointer)
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{
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RemainEnd = Pointer++;
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for (; L'\\' == *Pointer; Pointer++)
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;
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Suffix = Pointer;
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}
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else
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Pointer++;
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*PRemain = Path;
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if (Path < Suffix)
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{
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if (0 != Root && Path == RemainEnd && L'\\' == *Path)
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*PRemain = Root;
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*RemainEnd = L'\0';
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*PSuffix = Suffix;
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}
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else
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*PSuffix = Pointer;
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}
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FSP_API VOID FspPathCombine(PWSTR Prefix, PWSTR Suffix)
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{
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for (; Prefix < Suffix; Prefix++)
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if (L'\0' == *Prefix)
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*Prefix = L'\\';
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}
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