зеркало из https://github.com/mozilla/gecko-dev.git
604 строки
21 KiB
C++
604 строки
21 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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// This file is included by nsFile.cp, and includes the Macintosh-specific
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// implementations.
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#include "FullPath.h"
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#include "FileCopy.h"
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#include "nsEscape.h"
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#include <Aliases.h>
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#include <Folders.h>
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#include <Errors.h>
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#include <TextUtils.h>
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const unsigned char* kAliasHavenFolderName = "\pnsAliasHaven";
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//========================================================================================
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namespace MacFileHelpers
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//========================================================================================
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{
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inline void PLstrcpy(Str255 dst, ConstStr255Param src)
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{
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memcpy(dst, src, 1 + src[0]);
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}
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void PLstrcpy(Str255 dst, const char* src, int inMaxLen);
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void SwapSlashColon(char * s);
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OSErr FSSpecFromFullUnixPath(
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const char * unixPath,
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FSSpec& outSpec,
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Boolean resolveAlias,
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Boolean allowPartial = false);
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char* MacPathFromUnixPath(const char* unixPath);
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char* EncodeMacPath(
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char* inPath, // NOT const - gets clobbered
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Boolean prependSlash,
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Boolean doEscape );
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OSErr FSSpecFromPathname(
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const char* inPathNamePtr,
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FSSpec& outSpec);
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char* PathNameFromFSSpec(
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const FSSpec& inSpec,
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Boolean wantLeafName );
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OSErr CreateFolderInFolder(
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short refNum, // Parent directory/volume
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long dirID,
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ConstStr255Param folderName, // Name of the new folder
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short& outRefNum, // Volume of the created folder
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long& outDirID); //
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// Some routines to support an "alias haven" directory. Aliases in this directory
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// are never resolved. There is a ResolveAlias here that respects that. This is
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// to support attaching of aliases in mail.
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void EnsureAliasHaven();
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void SetNoResolve(Boolean inResolve);
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bool IsAliasSafe(const FSSpec& inSpec);
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OSErr MakeAliasSafe(FSSpec& inOutSpec);
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OSErr ResolveAliasFile(FSSpec& inOutSpec, Boolean& wasAliased);
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Boolean sNoResolve = false;
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long sAliasHavenDirID = 0;
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short sAliasHavenVRefNum = 0;
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} // namespace MacFileHelpers
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//----------------------------------------------------------------------------------------
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void MacFileHelpers::PLstrcpy(Str255 dst, const char* src, int inMax)
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//========================================================================================
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{
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int srcLength = strlen(src);
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NS_ASSERTION(srcLength <= inMax, "Oops, string is too long!");
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if (srcLength > inMax)
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srcLength = inMax;
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dst[0] = srcLength;
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memcpy(&dst[1], src, srcLength);
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}
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//-----------------------------------
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void MacFileHelpers::SwapSlashColon(char * s)
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//-----------------------------------
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{
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while ( *s != 0)
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{
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if (*s == '/')
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*s++ = ':';
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else if (*s == ':')
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*s++ = '/';
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else
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*s++;
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}
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} // MacFileHelpers::SwapSlashColon
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//-----------------------------------
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char* MacFileHelpers::EncodeMacPath(
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char* inPath, // NOT const, gets clobbered
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Boolean prependSlash,
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Boolean doEscape )
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// Transforms Macintosh style path into Unix one
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// Method: Swap ':' and '/', hex escape the result
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//-----------------------------------
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{
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if (inPath == NULL)
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return NULL;
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int pathSize = strlen(inPath);
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// XP code sometimes chokes if there's a final slash in the unix path.
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// Since correct mac paths to folders and volumes will end in ':', strip this
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// first.
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char* c = inPath + pathSize - 1;
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if (*c == ':')
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{
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*c = 0;
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pathSize--;
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}
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char * newPath = NULL;
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char * finalPath = NULL;
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if (prependSlash)
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{
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newPath = new char[pathSize + 2];
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newPath[0] = ':'; // It will be converted to '/'
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memcpy(&newPath[1], inPath, pathSize + 1);
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}
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else
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{
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newPath = new char[pathSize + 1];
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strcpy(newPath, inPath);
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}
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if (newPath)
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{
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SwapSlashColon( newPath );
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if (doEscape)
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{
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finalPath = nsEscape(newPath, url_Path);
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delete [] newPath;
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}
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else
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finalPath = newPath;
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}
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delete [] inPath;
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return finalPath;
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} // MacFileHelpers::EncodeMacPath
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//----------------------------------------------------------------------------------------
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inline void MacFileHelpers::SetNoResolve(Boolean inResolve)
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//----------------------------------------------------------------------------------------
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{
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sNoResolve = inResolve;
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} // MacFileHelpers::SetNoResolve
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//----------------------------------------------------------------------------------------
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OSErr MacFileHelpers::MakeAliasSafe(FSSpec& inOutSpec)
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// Pass in the spec of an alias. This copies the file to the safe haven folder, and
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// returns the spec of the copy to the caller
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//----------------------------------------------------------------------------------------
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{
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EnsureAliasHaven();
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nsNativeFileSpec dstDirSpec(sAliasHavenVRefNum, sAliasHavenDirID, "\p");
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// Make sure its name is unique
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nsNativeFileSpec havenSpec(sAliasHavenVRefNum, sAliasHavenDirID, "\pG'day");
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if (havenSpec.Valid())
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havenSpec.MakeUnique(inOutSpec.name);
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// Copy the file into the haven directory
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if (havenSpec.Valid())
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{
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OSErr err = ::FSpFileCopy(
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&inOutSpec,
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dstDirSpec,
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havenSpec.GetLeafPName(),
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nil, 0, true);
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// Return the spec of the copy to the caller.
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if (err != noErr)
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return err;
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inOutSpec = havenSpec;
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}
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return noErr;
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} // MacFileHelpers::MakeAliasSafe
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//----------------------------------------------------------------------------------------
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char* MacFileHelpers::MacPathFromUnixPath(const char* unixPath)
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//----------------------------------------------------------------------------------------
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{
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// Relying on the fact that the unix path is always longer than the mac path:
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size_t len = strlen(unixPath);
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char* result = new char[len + 2]; // ... but allow for the initial colon in a partial name
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if (result)
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{
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char* dst = result;
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const char* src = unixPath;
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if (*src == '/') // <20> full path
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src++;
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else if (strchr(src, '/')) // <20> partial path, and not just a leaf name
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*dst++ = ':';
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strcpy(dst, src);
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nsUnescape(dst); // Hex Decode
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MacFileHelpers::SwapSlashColon(dst);
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}
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return result;
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} // MacFileHelpers::MacPathFromUnixPath
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//----------------------------------------------------------------------------------------
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OSErr MacFileHelpers::FSSpecFromPathname(const char* inPathNamePtr, FSSpec& outSpec)
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// FSSpecFromPathname reverses PathNameFromFSSpec.
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// It returns a FSSpec given a c string which is a mac pathname.
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//----------------------------------------------------------------------------------------
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{
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OSErr err;
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// Simplify this routine to use FSMakeFSSpec if length < 255. Otherwise use the MoreFiles
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// routine FSpLocationFromFullPath, which allocates memory, to handle longer pathnames.
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if (strlen(inPathNamePtr) < 255)
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{
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Str255 path;
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int pos = 0;
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while ( (path[++pos] = *inPathNamePtr++) != 0 )
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;
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path[0] = pos-1; // save the length of the string (pos is the next open spot)
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err = ::FSMakeFSSpec(0, 0, path, &outSpec);
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}
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else
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err = FSpLocationFromFullPath(strlen(inPathNamePtr), inPathNamePtr, &outSpec);
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return err;
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}
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//----------------------------------------------------------------------------------------
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OSErr MacFileHelpers::CreateFolderInFolder(
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short refNum, // Parent directory/volume
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long dirID,
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ConstStr255Param folderName, // Name of the new folder
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short& outRefNum, // Volume of the created folder
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long& outDirID) //
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// Creates a folder named 'folderName' inside a folder.
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// The errors returned are same as PBDirCreate
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//----------------------------------------------------------------------------------------
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{
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HFileParam hpb;
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hpb.ioVRefNum = refNum;
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hpb.ioDirID = dirID;
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hpb.ioNamePtr = (StringPtr)&folderName;
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OSErr err = PBDirCreateSync((HParmBlkPtr)&hpb);
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if (err == noErr)
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{
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outRefNum = hpb.ioVRefNum;
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outDirID = hpb.ioDirID;
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}
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else
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{
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outRefNum = 0;
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outDirID = 0;
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}
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return err;
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} // MacFileHelpers::CreateFolderInFolder
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//----------------------------------------------------------------------------------------
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void MacFileHelpers::EnsureAliasHaven()
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//----------------------------------------------------------------------------------------
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{
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// Alias Haven is a directory in which we never resolve aliases.
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if (sAliasHavenVRefNum != 0)
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return;
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FSSpec temp;
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if (FindFolder(0, kTemporaryFolderType, true, & temp.vRefNum, &temp.parID) == noErr)
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{
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CreateFolderInFolder(
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temp.vRefNum, // Parent directory/volume
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temp.parID,
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kAliasHavenFolderName, // Name of the new folder
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sAliasHavenVRefNum, // Volume of the created folder
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sAliasHavenDirID);
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}
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} // MacFileHelpers::EnsureAliasHaven
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//----------------------------------------------------------------------------------------
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bool MacFileHelpers::IsAliasSafe(const FSSpec& inSpec)
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// Returns true if the alias is in the alias haven directory, or if alias resolution
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// has been turned off.
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//----------------------------------------------------------------------------------------
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{
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return sNoResolve
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|| (inSpec.parID == sAliasHavenDirID && inSpec.vRefNum == sAliasHavenVRefNum);
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} // MacFileHelpers::IsAliasSafe
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//----------------------------------------------------------------------------------------
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OSErr MacFileHelpers::ResolveAliasFile(FSSpec& inOutSpec, Boolean& wasAliased)
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//----------------------------------------------------------------------------------------
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{
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wasAliased = false;
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if (IsAliasSafe(inOutSpec))
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return noErr;
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Boolean dummy;
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return ::ResolveAliasFile(&inOutSpec, TRUE, &dummy, &wasAliased);
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} // MacFileHelpers::ResolveAliasFile
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//-----------------------------------
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OSErr MacFileHelpers::FSSpecFromFullUnixPath(
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const char * unixPath,
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FSSpec& outSpec,
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Boolean resolveAlias,
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Boolean allowPartial)
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// File spec from URL. Reverses GetURLFromFileSpec
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// Its input is only the <path> part of the URL
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// JRM 97/01/08 changed this so that if it's a partial path (doesn't start with '/'),
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// then it is combined with inOutSpec's vRefNum and parID to form a new spec.
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//-----------------------------------
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{
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if (unixPath == NULL)
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return badFidErr;
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char* macPath = MacPathFromUnixPath(unixPath);
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if (!macPath)
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return memFullErr;
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OSErr err = noErr;
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if (!allowPartial)
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{
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NS_ASSERTION(*unixPath == '/' /*full path*/, "Not a full Unix path!");
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}
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err = FSSpecFromPathname(macPath, outSpec);
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if (err == fnfErr)
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err = noErr;
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Boolean dummy;
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if (err == noErr && resolveAlias) // Added
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err = MacFileHelpers::ResolveAliasFile(outSpec, dummy);
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delete [] macPath;
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NS_ASSERTION(err==noErr||err==fnfErr||err==dirNFErr||err==nsvErr, "Not a path!");
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return err;
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} // MacFileHelpers::FSSpecFromLocalUnixPath
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//-----------------------------------
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char* MacFileHelpers::PathNameFromFSSpec( const FSSpec& inSpec, Boolean wantLeafName )
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// Returns a full pathname to the given file
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// Returned value is allocated with new [], and must be freed with delete []
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// This is taken from FSpGetFullPath in MoreFiles, except that we need to tolerate
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// fnfErr.
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//-----------------------------------
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{
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char* result = nil;
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OSErr err = noErr;
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short fullPathLength = 0;
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Handle fullPath = NULL;
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FSSpec tempSpec = inSpec;
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if ( tempSpec.parID == fsRtParID )
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{
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/* The object is a volume */
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/* Add a colon to make it a full pathname */
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tempSpec.name[++tempSpec.name[0]] = ':';
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/* We're done */
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err = PtrToHand(&tempSpec.name[1], &fullPath, tempSpec.name[0]);
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}
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else
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{
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/* The object isn't a volume */
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CInfoPBRec pb = { 0 };
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Str63 dummyFileName;
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MacFileHelpers::PLstrcpy(dummyFileName, "\pG'day!");
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/* Is the object a file or a directory? */
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pb.dirInfo.ioNamePtr = (! tempSpec.name[0]) ? (StringPtr)dummyFileName : tempSpec.name;
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pb.dirInfo.ioVRefNum = tempSpec.vRefNum;
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pb.dirInfo.ioDrDirID = tempSpec.parID;
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pb.dirInfo.ioFDirIndex = 0;
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err = PBGetCatInfoSync(&pb);
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if ( err == noErr || err == fnfErr)
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{
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// if the object is a directory, append a colon so full pathname ends with colon
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// Beware of the "illegal spec" case that Netscape uses (empty name string). In
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// this case, we don't want the colon.
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if ( err == noErr && tempSpec.name[0] && (pb.hFileInfo.ioFlAttrib & ioDirMask) != 0 )
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{
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++tempSpec.name[0];
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tempSpec.name[tempSpec.name[0]] = ':';
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}
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/* Put the object name in first */
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err = PtrToHand(&tempSpec.name[1], &fullPath, tempSpec.name[0]);
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if ( err == noErr )
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{
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/* Get the ancestor directory names */
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pb.dirInfo.ioNamePtr = tempSpec.name;
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pb.dirInfo.ioVRefNum = tempSpec.vRefNum;
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pb.dirInfo.ioDrParID = tempSpec.parID;
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do /* loop until we have an error or find the root directory */
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{
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pb.dirInfo.ioFDirIndex = -1;
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pb.dirInfo.ioDrDirID = pb.dirInfo.ioDrParID;
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err = PBGetCatInfoSync(&pb);
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if ( err == noErr )
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{
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/* Append colon to directory name */
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++tempSpec.name[0];
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tempSpec.name[tempSpec.name[0]] = ':';
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/* Add directory name to beginning of fullPath */
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(void) Munger(fullPath, 0, NULL, 0, &tempSpec.name[1], tempSpec.name[0]);
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err = MemError();
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}
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} while ( err == noErr && pb.dirInfo.ioDrDirID != fsRtDirID );
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}
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}
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}
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if ( err != noErr && err != fnfErr)
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goto Clean;
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fullPathLength = GetHandleSize(fullPath);
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err = noErr;
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int allocSize = 1 + fullPathLength;
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// We only want the leaf name if it's the root directory or wantLeafName is true.
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if (inSpec.parID != fsRtParID && !wantLeafName)
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allocSize -= inSpec.name[0];
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result = new char[allocSize];
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if (!result)
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goto Clean;
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memcpy(result, *fullPath, allocSize - 1);
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result[ allocSize - 1 ] = 0;
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Clean:
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if (fullPath)
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DisposeHandle(fullPath);
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NS_ASSERTION(result, "Out of memory"); // OOPS! very bad.
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return result;
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} // MacFileHelpers::PathNameFromFSSpec
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//========================================================================================
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// Macintosh nsNativeFileSpec implementation
|
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//========================================================================================
|
||
|
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//----------------------------------------------------------------------------------------
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nsNativeFileSpec::nsNativeFileSpec()
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//----------------------------------------------------------------------------------------
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: mError(noErr)
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{
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mSpec.name[0] = '\0';
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}
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|
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//----------------------------------------------------------------------------------------
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nsNativeFileSpec::nsNativeFileSpec(const nsNativeFileSpec& inSpec)
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//----------------------------------------------------------------------------------------
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: mSpec(inSpec.mSpec)
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, mError(inSpec.Error())
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{
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}
|
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|
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//----------------------------------------------------------------------------------------
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nsNativeFileSpec::nsNativeFileSpec(const char* inString)
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//----------------------------------------------------------------------------------------
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{
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mError = MacFileHelpers::FSSpecFromFullUnixPath(inString, mSpec, true, true);
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// allow a partial path
|
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if (mError == fnfErr)
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mError = noErr;
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} // nsNativeFileSpec::nsNativeFileSpec
|
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|
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//----------------------------------------------------------------------------------------
|
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nsNativeFileSpec::nsNativeFileSpec(
|
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short vRefNum,
|
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long parID,
|
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ConstStr255Param name)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
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mError = ::FSMakeFSSpec(vRefNum, parID, name, &mSpec);
|
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if (mError == fnfErr)
|
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mError = noErr;
|
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}
|
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|
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//----------------------------------------------------------------------------------------
|
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nsNativeFileSpec::nsNativeFileSpec(const nsFilePath& inPath)
|
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//----------------------------------------------------------------------------------------
|
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{
|
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*this = inPath.GetNativeSpec();
|
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}
|
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|
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//----------------------------------------------------------------------------------------
|
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nsOutputFileStream& operator << (nsOutputFileStream& s, const nsNativeFileSpec& spec)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
s << spec.mSpec.vRefNum << ", " << spec.mSpec.parID << ", \"";
|
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s.write((const char*)&spec.mSpec.name[1], spec.mSpec.name[0]);
|
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return s << "\"";
|
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} // nsOutputFileStream& operator << (nsOutputFileStream&, const nsNativeFileSpec&)
|
||
|
||
//----------------------------------------------------------------------------------------
|
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void nsNativeFileSpec::operator = (const char* inString)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
mError = MacFileHelpers::FSSpecFromFullUnixPath(inString, mSpec, true);
|
||
} // nsNativeFileSpec::operator =
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
void nsNativeFileSpec::operator = (const nsNativeFileSpec& inSpec)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
mSpec = inSpec.mSpec;
|
||
mError = inSpec.Error();
|
||
} // nsNativeFileSpec::operator =
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
void nsNativeFileSpec::operator = (const nsFilePath& inPath)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
*this = inPath.GetNativeSpec();
|
||
} // nsNativeFileSpec::operator =
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
bool nsNativeFileSpec::Exists() const
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
FSSpec temp;
|
||
return ::FSMakeFSSpec(mSpec.vRefNum, mSpec.parID, mSpec.name, &temp) == noErr;
|
||
} // nsNativeFileSpec::operator =
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
void nsNativeFileSpec::SetLeafName(const char* inLeafName)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
MacFileHelpers::PLstrcpy(mSpec.name, inLeafName, nsFileSpecHelpers::kMaxFilenameLength);
|
||
} // nsNativeFileSpec::SetLeafName
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
char* nsNativeFileSpec::GetLeafName() const
|
||
// Result needs to be delete[]ed.
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
char leaf[64];
|
||
memcpy(leaf, &mSpec.name[1], mSpec.name[0]);
|
||
leaf[mSpec.name[0]] = '\0';
|
||
return nsFileSpecHelpers::StringDup(leaf);
|
||
} // nsNativeFileSpec::GetLeafName
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
void nsNativeFileSpec::MakeAliasSafe()
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
mError = MacFileHelpers::MakeAliasSafe(mSpec);
|
||
} // nsNativeFileSpec::MakeAliasSafe
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
void nsNativeFileSpec::MakeUnique(ConstStr255Param inSuggestedLeafName)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
if (inSuggestedLeafName[0] > 0)
|
||
MacFileHelpers::PLstrcpy(mSpec.name, inSuggestedLeafName);
|
||
|
||
MakeUnique();
|
||
} // nsNativeFileSpec::MakeUnique
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
void nsNativeFileSpec::ResolveAlias(bool& wasAliased)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
Boolean wasAliased2;
|
||
mError = MacFileHelpers::ResolveAliasFile(mSpec, wasAliased2);
|
||
wasAliased = (wasAliased2 != false);
|
||
} // nsNativeFileSpec::ResolveAlias
|
||
|
||
//========================================================================================
|
||
// Macintosh nsFilePath implementation
|
||
//========================================================================================
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
nsFilePath::nsFilePath(const nsNativeFileSpec& inSpec)
|
||
//----------------------------------------------------------------------------------------
|
||
: mNativeFileSpec(inSpec)
|
||
{
|
||
char * path = MacFileHelpers::PathNameFromFSSpec( inSpec.mSpec, TRUE );
|
||
mPath = MacFileHelpers::EncodeMacPath(path, true, true);
|
||
}
|
||
|
||
//----------------------------------------------------------------------------------------
|
||
void nsFilePath::operator = (const nsNativeFileSpec& inSpec)
|
||
//----------------------------------------------------------------------------------------
|
||
{
|
||
delete [] mPath;
|
||
char * path = MacFileHelpers::PathNameFromFSSpec( inSpec.mSpec, TRUE );
|
||
mPath = MacFileHelpers::EncodeMacPath(path, true, true);
|
||
mNativeFileSpec = inSpec;
|
||
} // nsFilePath::operator =
|