to check if .text file present then delete that file and then reboot the system, but if file not found then donot reboot

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hi guys i have written a code in c++ which checks whether autorebootlist.txt file is present or not.
if file is present then delete autorebootlist.text file and then reboot the system
if file not present then system should not reboot at all.

i have written a code but there is some problem while executing like while debugging i came to know that debugger doesnnot enter to if ans else statement.
Can any one rectify it.

C++

 #include "stdafx.h"
 #include<iostream>
 #include <stdio.h>
 #include <stdlib.h>
 #include <conio.h>
 #include "Shlwapi.h"
 #include "Tlhelp32.h"
 #include<WtsApi32.h>
 #include <Powrprof.h>
 #include<windows.h>
 #include<winnt.h>
 #include <aclapi.h>
 #include <Psapi.h>
 #include <wtsapi32.h>
 #include<string>
 #include<string.h>
 #pragma warning(disable: 4996)
 #pragma comment(lib, "user32.lib")
 #pragma comment(lib, "advapi32.lib")
 #include "Global.h"

//#include "LimitSingleInstance.H"
//using namespace System;
using namespace std;
CLog objlog;

BOOL MySystemShutdown();

int _tmain(int argc, _TCHAR* argv[])
{
    std::string CmdParams[100];

    HANDLE hMutex = CreateMutexA(NULL, FALSE, "my mutex");
    DWORD dwMutexWaitResult = WaitForSingleObject(hMutex, 0);
    if (dwMutexWaitResult != WAIT_OBJECT_0)
    {
        MessageBox(HWND_DESKTOP, TEXT("This application is already running"), TEXT("Information"), MB_OK | MB_ICONINFORMATION);
        CloseHandle(hMutex);
    }
    //strcpy(szInput, CmdParams[0].c_str());
    WIN32_FIND_DATA search_data;

    char Path[1024];
    //char Dir[1024];
    char ExePath[1024];
    GetModuleFileName(NULL, Path, sizeof(Path));
    strcpy(ExePath, Path);
    PathRemoveFileSpec(Path);
    ofstream outputFile(strcat(Path, "\\rebootstatus.txt"), std::ofstream::out);

    memset(&search_data, 0, sizeof(WIN32_FIND_DATA));

    HANDLE handle = FindFirstFile(strcat(Path, "\\autorebootlist.txt"), &search_data);

    while (handle != INVALID_HANDLE_VALUE)
    {


       
        if (FindNextFile(handle, &search_data) == FALSE)
        {
            objlog.WriteToLog("MSG", "autoreboot", "reboot done");
            system("DEL /F autorebootlist.txt");

            std::remove("restarting.exe");
            MySystemShutdown();
            return 0;
        }
        else
        {

            //ofstream outputFile(strcat(Path, "\\rebootstatus.txt"), std::ofstream::out);
            objlog.WriteToLog("MSG", "autoreboot", "reboot not done");
            //printf("sorry file not found");
            outputFile << "autorebootlist.txt file missing!!! sorry you cannot reboot!!!";
            outputFile.close();
        }

    }
}


BOOL MySystemShutdown()
{
    HANDLE hToken;
    TOKEN_PRIVILEGES tkp;
    // Get a token for this process.
    if (!OpenProcessToken(GetCurrentProcess(),
        TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
        return(FALSE);
    // Get the LUID for the shutdown privilege.
    LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,
        &tkp.Privileges[0].Luid);
    tkp.PrivilegeCount = 1;  // one privilege to set
    tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
    // Get the shutdown privilege for this process.
    AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
        (PTOKEN_PRIVILEGES)NULL, 0);
    if (GetLastError() != ERROR_SUCCESS)
        return FALSE;
    // Shut down the system and force all applications to close.
    if (!ExitWindowsEx(EWX_REBOOT,
        SHTDN_REASON_MAJOR_OPERATINGSYSTEM |
        SHTDN_REASON_MINOR_UPGRADE |
        SHTDN_REASON_FLAG_PLANNED))
        return FALSE;
    return TRUE;
}

Posted 26-May-15 21:13pm

Member 11460314

Updated 26-May-15 23:42pm

v3

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[no name] 27-May-15 3:46am

Do you have autorebootlist.text where your debug exe is?

Member 11460314 27-May-15 3:57am

yes it is kept at the same location where exe is present

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Frankie-C · Accepted Answer · 2015-05-26T21:57:00

If you mean this if-else:

C++

while (handle != INVALID_HANDLE_VALUE)
{


    return 0;    //<--- Remove this!
    if (FindNextFile(handle, &search_data) == FALSE)
    {
        objlog.WriteToLog("MSG", "autoreboot", "reboot done");
        system("DEL /F autorebootlist.txt");

        std::remove("restarting.exe");
        MySystemShutdown();
        return 0;
    }
    else
    {

        //ofstream outputFile(strcat(Path, "\\rebootstatus.txt"), std::ofstream::out);
        objlog.WriteToLog("MSG", "autoreboot", "reboot not done");
        //printf("sorry file not found");
        outputFile << "autorebootlist.txt file missing!!! sorry you cannot reboot!!!";
        outputFile.close();
    }

}

Of course the program will exit before to enter your if-else statement.
But you have to check better the warnings that the compiler gives you. I'm sure you got "Unreachable code", but you ignored it!.

The code to do what you ask should be:

C++

strcat(Path, "\\rebootstatus.txt");

FILE *fp = fopen(Path, "r");

if (fp)
{
    fclose(fp);
    objlog.WriteToLog("MSG", "autoreboot", "reboot done");
    system("DEL /F autorebootlist.txt");

    std::remove("restarting.exe");    //If this is actual executable you *cannot* remove it!!!
    MySystemShutdown();
    return 0;
}
else
{
    objlog.WriteToLog("MSG", "autoreboot", "reboot not done");
    //printf("sorry file not found");
    outputFile << "autorebootlist.txt file missing!!! sorry you cannot reboot!!!";
      outputFile.close();
  }