gecko-dev/xpinstall/cleanup/InstallCleanupUnix.cpp

121 строка
3.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Don Bragg <dbragg@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "InstallCleanup.h"
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
//----------------------------------------------------------------------------
// Native Unix file deletion function
//----------------------------------------------------------------------------
int NativeDeleteFile(const char* aFileToDelete)
{
struct stat fileStack;
if (stat(aFileToDelete, &fileStack) != 0)
{
return DONE;// No file to delete, do nothing.
}
else
{
if(unlink(aFileToDelete) != 0)
return TRY_LATER;
}
return DONE;
}
//----------------------------------------------------------------------------
// Native Unix file replacement function
//----------------------------------------------------------------------------
int NativeReplaceFile(const char* replacementFile, const char* doomedFile )
{
struct stat fileStack;
// replacement file must exist, doomed file doesn't have to
if (stat(replacementFile, &fileStack) != 0)
return DONE;
// don't have to do anything if the files are the same
if (strcmp(replacementFile, doomedFile) == 0)
return DONE;
if (unlink(doomedFile) != 0)
{
if (stat(doomedFile, &fileStack) == 0)
return TRY_LATER;
}
else
{
// doomedFile is gone move new file into place
if (rename(replacementFile, doomedFile) != 0)
return TRY_LATER; // this shouldn't happen
}
return DONE;
}
int main(int argc,char* argv[])
{
HREG reg;
int status = DONE;
struct stat fileStack;
if ( REGERR_OK == NR_StartupRegistry())
{
char regFilePath[256];
strcpy(regFilePath, argv[0]);
strcat(regFilePath, ".dat");
if ( stat(regFilePath, &fileStack) != 0)
regFilePath[0] = '\0';
if ( REGERR_OK == NR_RegOpen(regFilePath, &reg) )
{
do {
status = PerformScheduledTasks(reg);
if (status != DONE)
sleep(1);
} while (status == TRY_LATER);
NR_RegClose(&reg);
}
NR_ShutdownRegistry();
unlink(regFilePath);
}
return(0);
}