2 * Task termination utility
4 * Copyright 2008 Andrew Riedi
5 * Copyright 2010 Andrew Nguyen
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
24 #include <wine/unicode.h>
28 static int force_termination;
30 static WCHAR **task_list;
31 static unsigned int task_count;
39 static int taskkill_vprintfW(const WCHAR *msg, __ms_va_list va_args)
43 WCHAR msg_buffer[8192];
45 wlen = FormatMessageW(FORMAT_MESSAGE_FROM_STRING, msg, 0, 0, msg_buffer,
46 sizeof(msg_buffer)/sizeof(*msg_buffer), &va_args);
48 ret = WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), msg_buffer, wlen, &count, NULL);
54 /* On Windows WriteConsoleW() fails if the output is redirected. So fall
55 * back to WriteFile(), assuming the console encoding is still the right
58 len = WideCharToMultiByte(GetConsoleOutputCP(), 0, msg_buffer, wlen,
60 msgA = HeapAlloc(GetProcessHeap(), 0, len);
64 WideCharToMultiByte(GetConsoleOutputCP(), 0, msg_buffer, wlen, msgA, len,
66 WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), msgA, len, &count, FALSE);
67 HeapFree(GetProcessHeap(), 0, msgA);
73 static int CDECL taskkill_printfW(const WCHAR *msg, ...)
78 __ms_va_start(va_args, msg);
79 len = taskkill_vprintfW(msg, va_args);
85 static int CDECL taskkill_message_printfW(int msg, ...)
88 WCHAR msg_buffer[8192];
91 LoadStringW(GetModuleHandleW(NULL), msg, msg_buffer,
92 sizeof(msg_buffer)/sizeof(WCHAR));
94 __ms_va_start(va_args, msg);
95 len = taskkill_vprintfW(msg_buffer, va_args);
101 static int taskkill_message(int msg)
103 static const WCHAR formatW[] = {'%','1',0};
104 WCHAR msg_buffer[8192];
106 LoadStringW(GetModuleHandleW(NULL), msg, msg_buffer,
107 sizeof(msg_buffer)/sizeof(WCHAR));
109 return taskkill_printfW(formatW, msg_buffer);
112 /* Post WM_CLOSE to all top-level windows belonging to the process with specified PID. */
113 static BOOL CALLBACK pid_enum_proc(HWND hwnd, LPARAM lParam)
115 struct pid_close_info *info = (struct pid_close_info *)lParam;
118 GetWindowThreadProcessId(hwnd, &hwnd_pid);
120 if (hwnd_pid == info->pid)
122 PostMessageW(hwnd, WM_CLOSE, 0, 0);
129 static DWORD *enumerate_processes(DWORD *list_count)
131 DWORD *pid_list, alloc_bytes = 1024 * sizeof(*pid_list), needed_bytes;
133 pid_list = HeapAlloc(GetProcessHeap(), 0, alloc_bytes);
141 if (!EnumProcesses(pid_list, alloc_bytes, &needed_bytes))
143 HeapFree(GetProcessHeap(), 0, pid_list);
147 /* EnumProcesses can't signal an insufficient buffer condition, so the
148 * only way to possibly determine whether a larger buffer is required
149 * is to see whether the written number of bytes is the same as the
150 * buffer size. If so, the buffer will be reallocated to twice the
152 if (alloc_bytes != needed_bytes)
156 realloc_list = HeapReAlloc(GetProcessHeap(), 0, pid_list, alloc_bytes);
159 HeapFree(GetProcessHeap(), 0, pid_list);
162 pid_list = realloc_list;
165 *list_count = needed_bytes / sizeof(*pid_list);
169 static BOOL get_process_name_from_pid(DWORD pid, WCHAR *buf, DWORD chars)
175 process = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pid);
179 if (!EnumProcessModules(process, &module, sizeof(module), &required_size))
181 CloseHandle(process);
185 if (!GetModuleBaseNameW(process, module, buf, chars))
187 CloseHandle(process);
191 CloseHandle(process);
195 /* The implemented task enumeration and termination behavior does not
196 * exactly match native behavior. On Windows:
198 * In the case of terminating by process name, specifying a particular
199 * process name more times than the number of running instances causes
200 * all instances to be terminated, but termination failure messages to
201 * be printed as many times as the difference between the specification
202 * quantity and the number of running instances.
204 * Successful terminations are all listed first in order, with failing
205 * terminations being listed at the end.
207 * A PID of zero causes taskkill to warn about the inability to terminate
208 * system processes. */
209 static int send_close_messages(void)
211 DWORD *pid_list, pid_list_size;
212 DWORD self_pid = GetCurrentProcessId();
216 pid_list = enumerate_processes(&pid_list_size);
219 taskkill_message(STRING_ENUM_FAILED);
223 for (i = 0; i < task_count; i++)
225 WCHAR *p = task_list[i];
226 BOOL is_numeric = TRUE;
228 /* Determine whether the string is not numeric. */
240 DWORD pid = atoiW(task_list[i]);
241 struct pid_close_info info = { pid };
245 taskkill_message(STRING_SELF_TERMINATION);
250 EnumWindows(pid_enum_proc, (LPARAM)&info);
252 taskkill_message_printfW(STRING_CLOSE_PID_SEARCH, pid);
255 taskkill_message_printfW(STRING_SEARCH_FAILED, task_list[i]);
262 BOOL found_process = FALSE;
264 for (index = 0; index < pid_list_size; index++)
266 WCHAR process_name[MAX_PATH];
268 if (get_process_name_from_pid(pid_list[index], process_name, MAX_PATH) &&
269 !strcmpiW(process_name, task_list[i]))
271 struct pid_close_info info = { pid_list[index] };
273 found_process = TRUE;
274 if (pid_list[index] == self_pid)
276 taskkill_message(STRING_SELF_TERMINATION);
281 EnumWindows(pid_enum_proc, (LPARAM)&info);
282 taskkill_message_printfW(STRING_CLOSE_PROC_SRCH, process_name, pid_list[index]);
288 taskkill_message_printfW(STRING_SEARCH_FAILED, task_list[i]);
294 HeapFree(GetProcessHeap(), 0, pid_list);
298 static int terminate_processes(void)
300 DWORD *pid_list, pid_list_size;
301 DWORD self_pid = GetCurrentProcessId();
305 pid_list = enumerate_processes(&pid_list_size);
308 taskkill_message(STRING_ENUM_FAILED);
312 for (i = 0; i < task_count; i++)
314 WCHAR *p = task_list[i];
315 BOOL is_numeric = TRUE;
317 /* Determine whether the string is not numeric. */
329 DWORD pid = atoiW(task_list[i]);
334 taskkill_message(STRING_SELF_TERMINATION);
339 process = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
342 taskkill_message_printfW(STRING_SEARCH_FAILED, task_list[i]);
347 if (!TerminateProcess(process, 0))
349 taskkill_message_printfW(STRING_TERMINATE_FAILED, task_list[i]);
351 CloseHandle(process);
355 taskkill_message_printfW(STRING_TERM_PID_SEARCH, pid);
356 CloseHandle(process);
361 BOOL found_process = FALSE;
363 for (index = 0; index < pid_list_size; index++)
365 WCHAR process_name[MAX_PATH];
367 if (get_process_name_from_pid(pid_list[index], process_name, MAX_PATH) &&
368 !strcmpiW(process_name, task_list[i]))
372 if (pid_list[index] == self_pid)
374 taskkill_message(STRING_SELF_TERMINATION);
379 process = OpenProcess(PROCESS_TERMINATE, FALSE, pid_list[index]);
382 taskkill_message_printfW(STRING_SEARCH_FAILED, task_list[i]);
387 if (!TerminateProcess(process, 0))
389 taskkill_message_printfW(STRING_TERMINATE_FAILED, task_list[i]);
391 CloseHandle(process);
395 found_process = TRUE;
396 taskkill_message_printfW(STRING_TERM_PROC_SEARCH, task_list[i], pid_list[index]);
397 CloseHandle(process);
403 taskkill_message_printfW(STRING_SEARCH_FAILED, task_list[i]);
409 HeapFree(GetProcessHeap(), 0, pid_list);
413 static BOOL add_to_task_list(WCHAR *name)
415 static unsigned int list_size = 16;
419 task_list = HeapAlloc(GetProcessHeap(), 0,
420 list_size * sizeof(*task_list));
424 else if (task_count == list_size)
429 realloc_list = HeapReAlloc(GetProcessHeap(), 0, task_list,
430 list_size * sizeof(*task_list));
434 task_list = realloc_list;
437 task_list[task_count++] = name;
441 /* FIXME Argument processing does not match behavior observed on Windows.
442 * Stringent argument counting and processing is performed, and unrecognized
443 * options are detected as parameters when placed after options that accept one. */
444 static BOOL process_arguments(int argc, WCHAR *argv[])
446 static const WCHAR slashForceTerminate[] = {'/','f',0};
447 static const WCHAR slashImage[] = {'/','i','m',0};
448 static const WCHAR slashPID[] = {'/','p','i','d',0};
449 static const WCHAR slashHelp[] = {'/','?',0};
454 BOOL has_im = 0, has_pid = 0;
456 /* Only the lone help option is recognized. */
457 if (argc == 2 && !strcmpW(slashHelp, argv[1]))
459 taskkill_message(STRING_USAGE);
463 for (i = 1; i < argc; i++)
465 int got_im = 0, got_pid = 0;
467 if (!strcmpiW(slashForceTerminate, argv[i]))
468 force_termination = 1;
469 /* Options /IM and /PID appear to behave identically, except for
470 * the fact that they cannot be specified at the same time. */
471 else if ((got_im = !strcmpiW(slashImage, argv[i])) ||
472 (got_pid = !strcmpiW(slashPID, argv[i])))
476 taskkill_message_printfW(STRING_MISSING_PARAM, argv[i]);
477 taskkill_message(STRING_USAGE);
481 if (got_im) has_im = 1;
482 if (got_pid) has_pid = 1;
484 if (has_im && has_pid)
486 taskkill_message(STRING_MUTUAL_EXCLUSIVE);
487 taskkill_message(STRING_USAGE);
491 if (!add_to_task_list(argv[i + 1]))
497 taskkill_message(STRING_INVALID_OPTION);
498 taskkill_message(STRING_USAGE);
505 taskkill_message(STRING_MISSING_OPTION);
506 taskkill_message(STRING_USAGE);
513 int wmain(int argc, WCHAR *argv[])
517 if (!process_arguments(argc, argv))
519 HeapFree(GetProcessHeap(), 0, task_list);
523 if (force_termination)
524 status_code = terminate_processes();
526 status_code = send_close_messages();
528 HeapFree(GetProcessHeap(), 0, task_list);