1 /*
2 * Toolhelp
3 *
4 * Copyright 2005 Eric Pouech
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include <stdarg.h>
22 #include <stdlib.h>
23 #include <stdio.h>
24
25 #include "windef.h"
26 #include "winbase.h"
27 #include "tlhelp32.h"
28 #include "wine/test.h"
29 #include "winuser.h"
30
31 static char selfname[MAX_PATH];
32
33 /* Some functions are only in later versions of kernel32.dll */
34 static HANDLE (WINAPI *pCreateToolhelp32Snapshot)(DWORD, DWORD);
35 static BOOL (WINAPI *pModule32First)(HANDLE, LPMODULEENTRY32);
36 static BOOL (WINAPI *pModule32Next)(HANDLE, LPMODULEENTRY32);
37 static BOOL (WINAPI *pProcess32First)(HANDLE, LPPROCESSENTRY32);
38 static BOOL (WINAPI *pProcess32Next)(HANDLE, LPPROCESSENTRY32);
39 static BOOL (WINAPI *pThread32First)(HANDLE, LPTHREADENTRY32);
40 static BOOL (WINAPI *pThread32Next)(HANDLE, LPTHREADENTRY32);
41
42 /* 1 minute should be more than enough */
43 #define WAIT_TIME (60 * 1000)
44
45 static DWORD WINAPI sub_thread(void* pmt)
46 {
47 DWORD w = WaitForSingleObject((HANDLE)pmt, WAIT_TIME);
48 return w;
49 }
50
51 /******************************************************************
52 * init
53 *
54 * generates basic information like:
55 * selfname: the way to reinvoke ourselves
56 * returns:
57 * -1 on error
58 * 0 if parent
59 * doesn't return if child
60 */
61 static int init(void)
62 {
63 int argc;
64 char** argv;
65 HANDLE ev1, ev2, ev3, hThread;
66 DWORD w, tid;
67
68 argc = winetest_get_mainargs( &argv );
69 strcpy(selfname, argv[0]);
70
71 switch (argc)
72 {
73 case 2: /* the test program */
74 return 0;
75 case 4: /* the sub-process */
76 ev1 = (HANDLE)atoi(argv[2]);
77 ev2 = (HANDLE)atoi(argv[3]);
78 ev3 = CreateEvent(NULL, FALSE, FALSE, NULL);
79
80 if (ev3 == NULL) ExitProcess(WAIT_ABANDONED);
81 hThread = CreateThread(NULL, 0, sub_thread, ev3, 0, &tid);
82 if (hThread == NULL) ExitProcess(WAIT_ABANDONED);
83 if (!LoadLibraryA("shell32.dll")) ExitProcess(WAIT_ABANDONED);
84
85 /* signal init of sub-process is done */
86 SetEvent(ev1);
87 /* wait for parent to have done all its queries */
88 w = WaitForSingleObject(ev2, WAIT_TIME);
89 if (w != WAIT_OBJECT_0) ExitProcess(w);
90 /* signal sub-thread to terminate */
91 SetEvent(ev3);
92 w = WaitForSingleObject(hThread, WAIT_TIME);
93 if (w != WAIT_OBJECT_0) ExitProcess(w);
94 GetExitCodeThread(hThread, &w);
95 ExitProcess(w);
96 default:
97 return -1;
98 }
99 }
100
101 static void test_process(DWORD curr_pid, DWORD sub_pcs_pid)
102 {
103 HANDLE hSnapshot;
104 PROCESSENTRY32 pe;
105 MODULEENTRY32 me;
106 unsigned found = 0;
107 int num = 0;
108 int childpos = -1;
109
110 hSnapshot = pCreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
111 ok(hSnapshot != NULL, "Cannot create snapshot\n");
112
113 /* check that this current process is enumerated */
114 pe.dwSize = sizeof(pe);
115 if (pProcess32First( hSnapshot, &pe ))
116 {
117 do
118 {
119 if (pe.th32ProcessID == curr_pid) found++;
120 if (pe.th32ProcessID == sub_pcs_pid) { childpos = num; found++; }
121 trace("PID=%x %s\n", pe.th32ProcessID, pe.szExeFile);
122 num++;
123 } while (pProcess32Next( hSnapshot, &pe ));
124 }
125 ok(found == 2, "couldn't find self and/or sub-process in process list\n");
126
127 /* check that first really resets the enumeration */
128 found = 0;
129 if (pProcess32First( hSnapshot, &pe ))
130 {
131 do
132 {
133 if (pe.th32ProcessID == curr_pid) found++;
134 if (pe.th32ProcessID == sub_pcs_pid) found++;
135 trace("PID=%x %s\n", pe.th32ProcessID, pe.szExeFile);
136 num--;
137 } while (pProcess32Next( hSnapshot, &pe ));
138 }
139 ok(found == 2, "couldn't find self and/or sub-process in process list\n");
140 ok(!num, "mismatch in counting\n");
141
142 /* one broken program does Process32First() and does not expect anything
143 * interesting to be there, especially not the just forked off child */
144 ok (childpos !=0, "child is not expected to be at position 0.\n");
145
146 me.dwSize = sizeof(me);
147 ok(!pModule32First( hSnapshot, &me ), "shouldn't return a module\n");
148
149 CloseHandle(hSnapshot);
150 ok(!pProcess32First( hSnapshot, &pe ), "shouldn't return a process\n");
151 }
152
153 static void test_thread(DWORD curr_pid, DWORD sub_pcs_pid)
154 {
155 HANDLE hSnapshot;
156 THREADENTRY32 te;
157 MODULEENTRY32 me;
158 int num = 0;
159 unsigned curr_found = 0;
160 unsigned sub_found = 0;
161
162 hSnapshot = pCreateToolhelp32Snapshot( TH32CS_SNAPTHREAD, 0 );
163 ok(hSnapshot != NULL, "Cannot create snapshot\n");
164
165 /* check that this current process is enumerated */
166 te.dwSize = sizeof(te);
167 if (pThread32First( hSnapshot, &te ))
168 {
169 do
170 {
171 if (te.th32OwnerProcessID == curr_pid) curr_found++;
172 if (te.th32OwnerProcessID == sub_pcs_pid) sub_found++;
173 if (winetest_debug > 1)
174 trace("PID=%x TID=%x %d\n", te.th32OwnerProcessID, te.th32ThreadID, te.tpBasePri);
175 num++;
176 } while (pThread32Next( hSnapshot, &te ));
177 }
178 ok(curr_found == 1, "couldn't find self in thread list\n");
179 ok(sub_found == 2, "couldn't find sub-process thread's in thread list\n");
180
181 /* check that first really resets enumeration */
182 curr_found = 0;
183 sub_found = 0;
184 if (pThread32First( hSnapshot, &te ))
185 {
186 do
187 {
188 if (te.th32OwnerProcessID == curr_pid) curr_found++;
189 if (te.th32OwnerProcessID == sub_pcs_pid) sub_found++;
190 if (winetest_debug > 1)
191 trace("PID=%x TID=%x %d\n", te.th32OwnerProcessID, te.th32ThreadID, te.tpBasePri);
192 num--;
193 } while (pThread32Next( hSnapshot, &te ));
194 }
195 ok(curr_found == 1, "couldn't find self in thread list\n");
196 ok(sub_found == 2, "couldn't find sub-process thread's in thread list\n");
197
198 me.dwSize = sizeof(me);
199 ok(!pModule32First( hSnapshot, &me ), "shouldn't return a module\n");
200
201 CloseHandle(hSnapshot);
202 ok(!pThread32First( hSnapshot, &te ), "shouldn't return a thread\n");
203 }
204
205 static const char* curr_expected_modules[] =
206 {
207 "kernel32.dll",
208 "kernel32_test.exe"
209 /* FIXME: could test for ntdll on NT and Wine */
210 };
211 static const char* sub_expected_modules[] =
212 {
213 "kernel32.dll",
214 "kernel32_test.exe",
215 "shell32.dll"
216 /* FIXME: could test for ntdll on NT and Wine */
217 };
218 #define NUM_OF(x) (sizeof(x) / sizeof(x[0]))
219
220 static void test_module(DWORD pid, const char* expected[], unsigned num_expected)
221 {
222 HANDLE hSnapshot;
223 PROCESSENTRY32 pe;
224 THREADENTRY32 te;
225 MODULEENTRY32 me;
226 unsigned found[32];
227 unsigned i;
228 int num = 0;
229
230 ok(NUM_OF(found) >= num_expected, "Internal: bump found[] size\n");
231
232 hSnapshot = pCreateToolhelp32Snapshot( TH32CS_SNAPMODULE, pid );
233 ok(hSnapshot != NULL, "Cannot create snapshot\n");
234
235 for (i = 0; i < num_expected; i++) found[i] = 0;
236 me.dwSize = sizeof(me);
237 if (pModule32First( hSnapshot, &me ))
238 {
239 do
240 {
241 trace("PID=%x base=%p size=%x %s %s\n",
242 me.th32ProcessID, me.modBaseAddr, me.modBaseSize, me.szExePath, me.szModule);
243 ok(me.th32ProcessID == pid, "wrong returned process id\n");
244 for (i = 0; i < num_expected; i++)
245 if (!lstrcmpi(expected[i], me.szModule)) found[i]++;
246 num++;
247 } while (pModule32Next( hSnapshot, &me ));
248 }
249 for (i = 0; i < num_expected; i++)
250 ok(found[i] == 1, "Module %s is %s\n",
251 expected[i], found[i] ? "listed more than once" : "not listed");
252
253 /* check that first really resets the enumeration */
254 for (i = 0; i < num_expected; i++) found[i] = 0;
255 me.dwSize = sizeof(me);
256 if (pModule32First( hSnapshot, &me ))
257 {
258 do
259 {
260 trace("PID=%x base=%p size=%x %s %s\n",
261 me.th32ProcessID, me.modBaseAddr, me.modBaseSize, me.szExePath, me.szModule);
262 for (i = 0; i < num_expected; i++)
263 if (!lstrcmpi(expected[i], me.szModule)) found[i]++;
264 num--;
265 } while (pModule32Next( hSnapshot, &me ));
266 }
267 for (i = 0; i < num_expected; i++)
268 ok(found[i] == 1, "Module %s is %s\n",
269 expected[i], found[i] ? "listed more than once" : "not listed");
270 ok(!num, "mismatch in counting\n");
271
272 pe.dwSize = sizeof(pe);
273 ok(!pProcess32First( hSnapshot, &pe ), "shouldn't return a process\n");
274
275 te.dwSize = sizeof(te);
276 ok(!pThread32First( hSnapshot, &te ), "shouldn't return a thread\n");
277
278 CloseHandle(hSnapshot);
279 ok(!pModule32First( hSnapshot, &me ), "shouldn't return a module\n");
280 }
281
282 START_TEST(toolhelp)
283 {
284 DWORD pid = GetCurrentProcessId();
285 int r;
286 char buffer[MAX_PATH];
287 SECURITY_ATTRIBUTES sa;
288 PROCESS_INFORMATION info;
289 STARTUPINFOA startup;
290 HANDLE ev1, ev2;
291 DWORD w;
292 HANDLE hkernel32 = GetModuleHandleA("kernel32");
293
294 pCreateToolhelp32Snapshot = (VOID *) GetProcAddress(hkernel32, "CreateToolhelp32Snapshot");
295 pModule32First = (VOID *) GetProcAddress(hkernel32, "Module32First");
296 pModule32Next = (VOID *) GetProcAddress(hkernel32, "Module32Next");
297 pProcess32First = (VOID *) GetProcAddress(hkernel32, "Process32First");
298 pProcess32Next = (VOID *) GetProcAddress(hkernel32, "Process32Next");
299 pThread32First = (VOID *) GetProcAddress(hkernel32, "Thread32First");
300 pThread32Next = (VOID *) GetProcAddress(hkernel32, "Thread32Next");
301
302 if (!pCreateToolhelp32Snapshot ||
303 !pModule32First || !pModule32Next ||
304 !pProcess32First || !pProcess32Next ||
305 !pThread32First || !pThread32Next)
306 {
307 skip("Needed functions are not available, most likely running on Windows NT\n");
308 return;
309 }
310
311 r = init();
312 ok(r == 0, "Basic init of sub-process test\n");
313 if (r != 0) return;
314
315 sa.nLength = sizeof(sa);
316 sa.lpSecurityDescriptor = NULL;
317 sa.bInheritHandle = TRUE;
318
319 ev1 = CreateEvent(&sa, FALSE, FALSE, NULL);
320 ev2 = CreateEvent(&sa, FALSE, FALSE, NULL);
321 ok (ev1 != NULL && ev2 != NULL, "Couldn't create events\n");
322 memset(&startup, 0, sizeof(startup));
323 startup.cb = sizeof(startup);
324 startup.dwFlags = STARTF_USESHOWWINDOW;
325 startup.wShowWindow = SW_SHOWNORMAL;
326
327 sprintf(buffer, "%s tests/toolhelp.c %u %u", selfname, (DWORD)ev1, (DWORD)ev2);
328 ok(CreateProcessA(NULL, buffer, NULL, NULL, TRUE, 0, NULL, NULL, &startup, &info), "CreateProcess\n");
329 /* wait for child to be initialized */
330 w = WaitForSingleObject(ev1, WAIT_TIME);
331 ok(w == WAIT_OBJECT_0, "Failed to wait on sub-process startup\n");
332
333 test_process(pid, info.dwProcessId);
334 test_thread(pid, info.dwProcessId);
335 test_module(pid, curr_expected_modules, NUM_OF(curr_expected_modules));
336 test_module(info.dwProcessId, sub_expected_modules, NUM_OF(sub_expected_modules));
337
338 SetEvent(ev2);
339 winetest_wait_child_process( info.hProcess );
340 }
341
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