[ale] Don't flame me -- More Info

[Chris Fowler]

Majorally Off topic but here is the windows shutdown/reboot code.  I pulled it out of my code.


void
command(int cmd)
{
        char byte[1];
        
        switch(cmd)
        {
                case 's':
                         write(fd,"\nSHUTDOWN: Sure? (Y/N):", 23);
                         read(fd, byte, 1);
                         if((byte[0] == 'y') || (byte[0] == 'Y'))
                                shutdown(EWX_SHUTDOWN);
                         break;
                case 'r':
                         write(fd,"\nREBOOT: Sure? (Y/N):", 21);
                         read(fd, byte, 1);
                         if((byte[0] == 'y') || (byte[0] == 'Y'))
                                shutdown(EWX_REBOOT);
                         break;
                case 'k':
                        kill(cPid, SIGKILL);
                        break;
                default:
                        write(fd, "\n------------------------\n", 26);
                        write(fd, "Commands:\n", 10);
                        write(fd, "s:      Shutdown\n", 17);
                        write(fd, "r:      Reboot", 14);
                        write(fd, "k:      kill Command\n", 21);
                        write(fd, "\n------------------------\n", 26);
                        break;
        }
        write(fd,'\n', 1);


        CMD=0;
}


/* int shutdown(int option)
 *
 * Function will shutdown and/or reboot system
 *
 * Arguments:
 *      int option: EWX_REBOOT or EWX_SHUTDOWN
 *
 * Returns:
 *      Nothing
 *
 */
int
shutdown(int option)
{
        
        // Get a token for this proces
        HANDLE hToken; TOKEN_PRIVILEGES tkp;  
        
        // Get the LUID for the shutdown privilege.  
        if (!OpenProcessToken(GetCurrentProcess(), 
                TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) 
                perror("OpenProcessToken");  


        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); 


        // Cannot test the return value of AdjustTokenPrivileges.
        if (GetLastError() != ERROR_SUCCESS)
                perror("AdjustTokenPrivileges"); 


        // Shut down the system and force all applications to close.  
        if (!ExitWindowsEx(option | EWX_FORCE, 0))
                perror("ExitWindowsEx"); 


}


-----Original Message-----
From: Eric Z. Ayers [mailto:eric.ayers at mindspring.com]
To: ale at ale.org
Sent: Tuesday, June 12, 2001 4:53 AM
To: Chris Fowler
Cc: 'ale at ale.org'
Subject: Re: [ale] Don't flame me -- More Info



Chris Fowler wrote:


> I've tried this and it does not work!
> 
> I like the cygwin environment.  In fact, I don't think I'll port to 
> win32 at all!
> 
> How can I issue a shutdown in W2K in cygwin?  I want to do it in code.
> 


> You'll want to ask this on the cygwin mailing list.  Go to redhat's 
> web site to find it.  And check the mailling list archives first.  
> Some of the most knowledgeable folks are, unfortunately, not too nice 
> when someone asks a FAQ.



> 
> -----Original Message-----
> From: Vernard Martin [mailto:vernard at cc.gatech.edu]
> Sent: Monday, June 11, 2001 10:13 AM
> To: Cade Thacker
> Cc: Eric Z. Ayers; 'ale at ale.org'
> Subject: Re: [ale] Don't flame me -- More Info
> 
> 
>Â  > How do I compile this file, so that my prof can run it on her computer
>Â  > that does not have the cywin dll?
> 
> Hrm. I don't think that is possible under windows. What you 
> effectively want is
> a "static" executable that includes the code itself and all the 
> libraries that
> it needs to run. you can do that under unix usually with some compiler 
> option
> such as "-static" or somesuch. I would check to see if the compiler 
> you are
> using with cygwin (mostly likely gcc) has this option and what it does 
> under
> the windows platform.
> 
> hope this helps
> V
> -- 
> Vernard Martin (vernard at cc.gatech.edu) 
> http://www.cc.gatech.edu/~vernard/Â Â Â  
>Â Â Â Â Â Â Â Â  "Anything worth fighting over is worth fighting dirty over"
> --
> To unsubscribe: mail majordomo at ale.org with "unsubscribe ale" in 
> message body.
> 



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