85 lines
1.5 KiB
C
85 lines
1.5 KiB
C
/* gcc -mwindows -mno-cygwin -o halt.exe halt.c
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NAME
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halt - stopping the system
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SYNOPSIS
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halt [-pq]
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DESCRIPTION
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The halt utility logs off the current user, flushes the file system
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buffers to disk, stops all processes (non-responsive processes are
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only forced to stop in Windows 2000), and shuts the system down.
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The options are as follows
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-p Attempt to powerdown the system. If the powerdown fails, or
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the system does not support software powerdown, the system
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will halt.
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-q Do not give processes a chance to shut down before halting or
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restarting. This option should not normally be used.
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AUTHOR
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Ben Collver <collver@softhome.net>
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*/
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#include <windows.h>
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#ifndef EWX_FORCEIFHUNG
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#define EWX_FORCEIFHUNG 0x00000010
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#endif
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int WINAPI WinMain(
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HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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LPSTR lpCmdLine,
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int nCmdShow)
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{
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TOKEN_PRIVILEGES privileges = {1, {{{0, 0}, SE_PRIVILEGE_ENABLED}}};
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HANDLE my_token;
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UINT my_flags;
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my_flags = EWX_SHUTDOWN | EWX_FORCEIFHUNG;
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if (strstr(lpCmdLine, "q") != NULL) {
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my_flags |= EWX_FORCE;
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}
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if (strstr(lpCmdLine, "p") != NULL) {
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my_flags |= EWX_POWEROFF;
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}
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if (!LookupPrivilegeValue(
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NULL,
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SE_SHUTDOWN_NAME,
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&privileges.Privileges[0].Luid))
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{
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exit(1);
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}
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if (!OpenProcessToken(
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GetCurrentProcess(),
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TOKEN_ADJUST_PRIVILEGES,
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&my_token))
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{
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exit(2);
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}
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if (!AdjustTokenPrivileges(
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my_token,
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FALSE,
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&privileges,
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sizeof(TOKEN_PRIVILEGES),
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NULL,
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NULL))
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{
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exit(3);
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}
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CloseHandle(my_token);
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if (!ExitWindowsEx(my_flags, 0)) {
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exit(4);
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}
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exit(0);
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}
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