dlls/kernel/tests/toolhelp.c

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <windef.h>
  25 #include <winbase.h>
  26
  27 #include "tlhelp32.h"
  28 #include "wine/test.h"
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winuser.h"
  32
  33 static char     selfname[MAX_PATH];
  34
  35 /* Some functions are only in later versions of kernel32.dll */
  36 static HANDLE (WINAPI *pCreateToolhelp32Snapshot)(DWORD, DWORD);
  37 static BOOL (WINAPI *pModule32First)(HANDLE, LPMODULEENTRY32);
  38 static BOOL (WINAPI *pModule32Next)(HANDLE, LPMODULEENTRY32);
  39 static BOOL (WINAPI *pProcess32First)(HANDLE, LPPROCESSENTRY32);
  40 static BOOL (WINAPI *pProcess32Next)(HANDLE, LPPROCESSENTRY32);
  41 static BOOL (WINAPI *pThread32First)(HANDLE, LPTHREADENTRY32);
  42 static BOOL (WINAPI *pThread32Next)(HANDLE, LPTHREADENTRY32);
  43
  44 /* 1 minute should be more than enough */
  45 #define WAIT_TIME       (60 * 1000)
  46
  47 static DWORD WINAPI sub_thread(void* pmt)
  48 {
  49     DWORD w = WaitForSingleObject((HANDLE)pmt, WAIT_TIME);
  50     return w;
  51 }
  52
  53 /******************************************************************
  54  *              init
  55  *
  56  * generates basic information like:
  57  *      selfname:       the way to reinvoke ourselves
  58  * returns:
  59  *      -1      on error
  60  *      0       if parent
  61  *      doesn't return if child
  62  */
  63 static int     init(void)
  64 {
  65     int                 argc;
  66     char**              argv;
  67     HANDLE              ev1, ev2, ev3, hThread;
  68     DWORD               w;
  69
  70     argc = winetest_get_mainargs( &argv );
  71     strcpy(selfname, argv[0]);
  72
  73     switch (argc)
  74     {
  75     case 2: /* the test program */
  76         return 0;
  77     case 4: /* the sub-process */
  78         ev1 = (HANDLE)atoi(argv[2]);
  79         ev2 = (HANDLE)atoi(argv[3]);
  80         ev3 = CreateEvent(NULL, FALSE, FALSE, NULL);
  81
  82         if (ev3 == NULL) ExitProcess(WAIT_ABANDONED);
  83         hThread = CreateThread(NULL, 0, sub_thread, ev3, 0, NULL);
  84         if (hThread == NULL) ExitProcess(WAIT_ABANDONED);
  85         if (!LoadLibraryA("shell32.dll")) ExitProcess(WAIT_ABANDONED);
  86
  87         /* signal init of sub-process is done */
  88         SetEvent(ev1);
  89         /* wait for parent to have done all its queries */
  90         w = WaitForSingleObject(ev2, WAIT_TIME);
  91         if (w != WAIT_OBJECT_0) ExitProcess(w);
  92         /* signal sub-thread to terminate */
  93         SetEvent(ev3);
  94         w = WaitForSingleObject(hThread, WAIT_TIME);
  95         if (w != WAIT_OBJECT_0) ExitProcess(w);
  96         GetExitCodeThread(hThread, &w);
  97         ExitProcess(w);
  98     default:
  99         return -1;
 100     }
 101 }
 102
 103 static void test_process(DWORD curr_pid, DWORD sub_pcs_pid)
 104 {
 105     HANDLE              hSnapshot;
 106     PROCESSENTRY32      pe;
 107     THREADENTRY32       te;
 108     MODULEENTRY32       me;
 109     unsigned            found = 0;
 110     int                 num = 0;
 111
 112     hSnapshot = pCreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
 113     ok(hSnapshot != NULL, "Cannot create snapshot\n");
 114
 115     /* check that this current process is enumerated */
 116     pe.dwSize = sizeof(pe);
 117     if (pProcess32First( hSnapshot, &pe ))
 118     {
 119         do
 120         {
 121             if (pe.th32ProcessID == curr_pid) found++;
 122             if (pe.th32ProcessID == sub_pcs_pid) found++;
 123             trace("PID=%lx %s\n", pe.th32ProcessID, pe.szExeFile);
 124             num++;
 125         } while (pProcess32Next( hSnapshot, &pe ));
 126     }
 127     ok(found == 2, "couldn't find self and/or sub-process in process list\n");
 128
 129     /* check that first really resets the enumeration */
 130     found = 0;
 131     if (pProcess32First( hSnapshot, &pe ))
 132     {
 133         do
 134         {
 135             if (pe.th32ProcessID == curr_pid) found++;
 136             if (pe.th32ProcessID == sub_pcs_pid) found++;
 137             trace("PID=%lx %s\n", pe.th32ProcessID, pe.szExeFile);
 138             num--;
 139         } while (pProcess32Next( hSnapshot, &pe ));
 140     }
 141     ok(found == 2, "couldn't find self and/or sub-process in process list\n");
 142     ok(!num, "mismatch in counting\n");
 143
 144     te.dwSize = sizeof(te);
 145     ok(!pThread32First( hSnapshot, &te ), "shouldn't return a thread\n");
 146
 147     me.dwSize = sizeof(me);
 148     ok(!pModule32First( hSnapshot, &me ), "shouldn't return a module\n");
 149
 150     CloseHandle(hSnapshot);
 151     ok(!pProcess32First( hSnapshot, &pe ), "shouldn't return a process\n");
 152 }
 153
 154 static void test_thread(DWORD curr_pid, DWORD sub_pcs_pid)
 155 {
 156     HANDLE              hSnapshot;
 157     PROCESSENTRY32      pe;
 158     THREADENTRY32       te;
 159     MODULEENTRY32       me;
 160     int                 num = 0;
 161     unsigned            curr_found = 0;
 162     unsigned            sub_found = 0;
 163
 164     hSnapshot = pCreateToolhelp32Snapshot( TH32CS_SNAPTHREAD, 0 );
 165     ok(hSnapshot != NULL, "Cannot create snapshot\n");
 166
 167     /* check that this current process is enumerated */
 168     te.dwSize = sizeof(te);
 169     if (pThread32First( hSnapshot, &te ))
 170     {
 171         do
 172         {
 173             if (te.th32OwnerProcessID == curr_pid) curr_found++;
 174             if (te.th32OwnerProcessID == sub_pcs_pid) sub_found++;
 175             trace("PID=%lx TID=%lx %ld\n", te.th32OwnerProcessID, te.th32ThreadID, te.tpBasePri);
 176             num++;
 177         } while (pThread32Next( hSnapshot, &te ));
 178     }
 179     ok(curr_found == 1, "couldn't find self in thread list\n");
 180     ok(sub_found == 2, "couldn't find sub-process thread's in thread list\n");
 181
 182     /* check that first really resets enumeration */
 183     curr_found = 0;
 184     sub_found = 0;
 185     if (pThread32First( hSnapshot, &te ))
 186     {
 187         do
 188         {
 189             if (te.th32OwnerProcessID == curr_pid) curr_found++;
 190             if (te.th32OwnerProcessID == sub_pcs_pid) sub_found++;
 191             trace("PID=%lx TID=%lx %ld\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     pe.dwSize = sizeof(pe);
 199     ok(!pProcess32First( hSnapshot, &pe ), "shouldn't return a process\n");
 200
 201     me.dwSize = sizeof(me);
 202     ok(!pModule32First( hSnapshot, &me ), "shouldn't return a module\n");
 203
 204     CloseHandle(hSnapshot);
 205     ok(!pThread32First( hSnapshot, &te ), "shouldn't return a thread\n");
 206 }
 207
 208 static const char* curr_expected_modules[] =
 209 {
 210     "kernel32.dll",
 211     "kernel32_test.exe"
 212     /* FIXME: could test for ntdll on NT and Wine */
 213 };
 214 static const char* sub_expected_modules[] =
 215 {
 216     "kernel32.dll",
 217     "kernel32_test.exe",
 218     "shell32.dll"
 219     /* FIXME: could test for ntdll on NT and Wine */
 220 };
 221 #define NUM_OF(x) (sizeof(x) / sizeof(x[0]))
 222
 223 static void test_module(DWORD pid, const char* expected[], unsigned num_expected)
 224 {
 225     HANDLE              hSnapshot;
 226     PROCESSENTRY32      pe;
 227     THREADENTRY32       te;
 228     MODULEENTRY32       me;
 229     unsigned            found[32];
 230     int                 i, num = 0;
 231
 232     ok(NUM_OF(found) >= num_expected, "Internal: bump found[] size\n");
 233
 234     hSnapshot = pCreateToolhelp32Snapshot( TH32CS_SNAPMODULE, pid );
 235     ok(hSnapshot != NULL, "Cannot create snapshot\n");
 236
 237     for (i = 0; i < num_expected; i++) found[i] = 0;
 238     me.dwSize = sizeof(me);
 239     if (pModule32First( hSnapshot, &me ))
 240     {
 241         do
 242         {
 243             trace("PID=%lx base=%p size=%lx %s %s\n",
 244                   me.th32ProcessID, me.modBaseAddr, me.modBaseSize, me.szExePath, me.szModule);
 245             ok(me.th32ProcessID == pid, "wrong returned process id");
 246             for (i = 0; i < num_expected; i++)
 247                 if (!lstrcmpi(expected[i], me.szModule)) found[i]++;
 248             num++;
 249         } while (pModule32Next( hSnapshot, &me ));
 250     }
 251     for (i = 0; i < num_expected; i++)
 252         ok(found[i] == 1, "Module %s is %s\n",
 253            expected[i], found[i] ? "listed more than once" : "not listed");
 254
 255     /* check that first really resets the enumeration */
 256     for (i = 0; i < num_expected; i++) found[i] = 0;
 257     me.dwSize = sizeof(me);
 258     if (pModule32First( hSnapshot, &me ))
 259     {
 260         do
 261         {
 262             trace("PID=%lx base=%p size=%lx %s %s\n",
 263                   me.th32ProcessID, me.modBaseAddr, me.modBaseSize, me.szExePath, me.szModule);
 264             for (i = 0; i < num_expected; i++)
 265                 if (!lstrcmpi(expected[i], me.szModule)) found[i]++;
 266             num--;
 267         } while (pModule32Next( hSnapshot, &me ));
 268     }
 269     for (i = 0; i < num_expected; i++)
 270         ok(found[i] == 1, "Module %s is %s\n",
 271            expected[i], found[i] ? "listed more than once" : "not listed");
 272     ok(!num, "mismatch in counting\n");
 273
 274     pe.dwSize = sizeof(pe);
 275     ok(!pProcess32First( hSnapshot, &pe ), "shouldn't return a process\n");
 276
 277     me.dwSize = sizeof(me);
 278     ok(!pThread32First( hSnapshot, &te ), "shouldn't return a thread\n");
 279
 280     CloseHandle(hSnapshot);
 281     ok(!pModule32First( hSnapshot, &me ), "shouldn't return a module\n");
 282 }
 283
 284 START_TEST(toolhelp)
 285 {
 286     DWORD               pid = GetCurrentProcessId();
 287     int                 r;
 288     char                buffer[MAX_PATH];
 289     SECURITY_ATTRIBUTES sa;
 290     PROCESS_INFORMATION info;
 291     STARTUPINFOA        startup;
 292     HANDLE              ev1, ev2;
 293     DWORD               w;
 294     HANDLE              hkernel32 = GetModuleHandleA("kernel32");
 295
 296     pCreateToolhelp32Snapshot = (VOID *) GetProcAddress(hkernel32, "CreateToolhelp32Snapshot");
 297     pModule32First = (VOID *) GetProcAddress(hkernel32, "Module32First");
 298     pModule32Next = (VOID *) GetProcAddress(hkernel32, "Module32Next");
 299     pProcess32First = (VOID *) GetProcAddress(hkernel32, "Process32First");
 300     pProcess32Next = (VOID *) GetProcAddress(hkernel32, "Process32Next");
 301     pThread32First = (VOID *) GetProcAddress(hkernel32, "Thread32First");
 302     pThread32Next = (VOID *) GetProcAddress(hkernel32, "Thread32Next");
 303
 304     if (!pCreateToolhelp32Snapshot ||
 305         !pModule32First || !pModule32Next ||
 306         !pProcess32First || !pProcess32Next ||
 307         !pThread32First || !pThread32Next) return;
 308
 309     r = init();
 310     ok(r == 0, "Basic init of sub-process test\n");
 311     if (r != 0) return;
 312
 313     sa.nLength = sizeof(sa);
 314     sa.lpSecurityDescriptor = NULL;
 315     sa.bInheritHandle = TRUE;
 316
 317     ev1 = CreateEvent(&sa, FALSE, FALSE, NULL);
 318     ev2 = CreateEvent(&sa, FALSE, FALSE, NULL);
 319     ok (ev1 != NULL && ev2 != NULL, "Couldn't create events\n");
 320     memset(&startup, 0, sizeof(startup));
 321     startup.cb = sizeof(startup);
 322     startup.dwFlags = STARTF_USESHOWWINDOW;
 323     startup.wShowWindow = SW_SHOWNORMAL;
 324
 325     sprintf(buffer, "%s tests/toolhelp.c %lu %lu", selfname, (DWORD)ev1, (DWORD)ev2);
 326     ok(CreateProcessA(NULL, buffer, NULL, NULL, TRUE, 0, NULL, NULL, &startup, &info), "CreateProcess\n");
 327     /* wait for child to be initialized */
 328     w = WaitForSingleObject(ev1, WAIT_TIME);
 329     ok(w == WAIT_OBJECT_0, "Failed to wait on sub-process startup\n");
 330
 331     test_process(pid, info.dwProcessId);
 332     test_thread(pid, info.dwProcessId);
 333     test_module(pid, curr_expected_modules, NUM_OF(curr_expected_modules));
 334     test_module(info.dwProcessId, sub_expected_modules, NUM_OF(sub_expected_modules));
 335
 336     SetEvent(ev2);
 337     w = WaitForSingleObject(info.hProcess, WAIT_TIME);
 338     ok(w == WAIT_OBJECT_0, "Failed to wait on sub-process termination\n");
 339     ok(GetExitCodeProcess(info.hProcess, &w), "couldn't get process exit code\n");
 340     ok(w == WAIT_OBJECT_0, "Sub-Process failed to terminate properly\n");
 341 }