ReactOS 0.4.16-dev-36-g301675c
Functions
query.c File Reference
#include "sc.h"
Include dependency graph for query.c:

Go to the source code of this file.

Functions

LPSERVICE_STATUS_PROCESS QueryService (LPCTSTR ServiceName)
 
static DWORD EnumServices (ENUM_SERVICE_STATUS_PROCESS **pServiceStatus, DWORD dwServiceType, DWORD dwServiceState, DWORD dwBufferSize, DWORD dwResumeIndex, LPCTSTR pszGroupName)
 
static BOOL ParseQueryArguments (IN LPCTSTR *ServiceArgs, IN INT ArgCount, OUT PDWORD pdwServiceType, OUT PDWORD pdwServiceState, OUT PDWORD pdwBufferSize, OUT PDWORD pdwResumeIndex, OUT LPCTSTR *ppszGroupName, OUT LPCTSTR *ppszServiceName)
 
BOOL Query (LPCTSTR *ServiceArgs, DWORD ArgCount, BOOL bExtended)
 

Function Documentation

◆ EnumServices()

static DWORD EnumServices ( ENUM_SERVICE_STATUS_PROCESS **  pServiceStatus,
DWORD  dwServiceType,
DWORD  dwServiceState,
DWORD  dwBufferSize,
DWORD  dwResumeIndex,
LPCTSTR  pszGroupName 
)
static

Definition at line 75 of file query.c.

81{
82 SC_HANDLE hSCManager;
83 DWORD BytesNeeded = 0;
84 DWORD ResumeHandle = dwResumeIndex;
85 DWORD NumServices = 0;
86 BOOL Ret;
87
88 hSCManager = OpenSCManager(NULL,
89 NULL,
90 SC_MANAGER_ENUMERATE_SERVICE);
91 if (hSCManager == NULL)
92 {
93 ReportLastError();
94 return 0;
95 }
96
97 if (dwBufferSize == 0)
98 {
99 Ret = EnumServicesStatusEx(hSCManager,
100 SC_ENUM_PROCESS_INFO,
101 dwServiceType,
102 dwServiceState,
103 (LPBYTE)*pServiceStatus,
104 dwBufferSize,
105 &BytesNeeded,
106 &NumServices,
107 &ResumeHandle,
108 pszGroupName);
109 if ((Ret == 0) && (GetLastError() != ERROR_MORE_DATA))
110 {
111 ReportLastError();
112 return 0;
113 }
114
115 dwBufferSize = BytesNeeded;
116 }
117
118 *pServiceStatus = (ENUM_SERVICE_STATUS_PROCESS *)
119 HeapAlloc(GetProcessHeap(),
120 0,
121 dwBufferSize);
122 if (*pServiceStatus != NULL)
123 {
124 if (EnumServicesStatusEx(hSCManager,
125 SC_ENUM_PROCESS_INFO,
126 dwServiceType,
127 dwServiceState,
128 (LPBYTE)*pServiceStatus,
129 dwBufferSize,
130 &BytesNeeded,
131 &NumServices,
132 &ResumeHandle,
133 pszGroupName))
134 {
135 CloseServiceHandle(hSCManager);
136 return NumServices;
137 }
138 }
139
140 ReportLastError();
141 if (*pServiceStatus)
142 HeapFree(GetProcessHeap(), 0, *pServiceStatus);
143
144 CloseServiceHandle(hSCManager);
145
146 return NumServices;
147}
ERROR_MORE_DATA
#define ERROR_MORE_DATA
Definition: dderror.h:13
NULL
#define NULL
Definition: types.h:112
GetProcessHeap
#define GetProcessHeap()
Definition: compat.h:736
HeapAlloc
#define HeapAlloc
Definition: compat.h:733
HeapFree
#define HeapFree(x, y, z)
Definition: compat.h:735
BOOL
unsigned int BOOL
Definition: ntddk_ex.h:94
DWORD
unsigned long DWORD
Definition: ntddk_ex.h:95
ReportLastError
DWORD ReportLastError(void)
Definition: loadlib.c:67
hSCManager
SC_HANDLE hSCManager
Definition: sc.c:12
CloseServiceHandle
BOOL WINAPI CloseServiceHandle(SC_HANDLE hSCObject)
Definition: scm.c:580
_ENUM_SERVICE_STATUS_PROCESSA
Definition: winsvc.h:134
LPBYTE
unsigned char * LPBYTE
Definition: typedefs.h:53
GetLastError
DWORD WINAPI GetLastError(void)
Definition: except.c:1042
OpenSCManager
#define OpenSCManager
Definition: winsvc.h:575
SC_MANAGER_ENUMERATE_SERVICE
#define SC_MANAGER_ENUMERATE_SERVICE
Definition: winsvc.h:16
EnumServicesStatusEx
#define EnumServicesStatusEx
Definition: winsvc.h:572
SC_ENUM_PROCESS_INFO
@ SC_ENUM_PROCESS_INFO
Definition: winsvc.h:122

Referenced by Query().

◆ ParseQueryArguments()

static BOOL ParseQueryArguments ( IN LPCTSTR *  ServiceArgs,
IN INT  ArgCount,
OUT PDWORD  pdwServiceType,
OUT PDWORD  pdwServiceState,
OUT PDWORD  pdwBufferSize,
OUT PDWORD  pdwResumeIndex,
OUT LPCTSTR *  ppszGroupName,
OUT LPCTSTR *  ppszServiceName 
)
static

Definition at line 152 of file query.c.

161{
162 INT TmpCount, TmpIndex;
163 DWORD dwValue;
164
165 TmpCount = ArgCount;
166 TmpIndex = 0;
167 while (TmpCount > 0)
168 {
169 if (!lstrcmpi(ServiceArgs[TmpIndex], _T("type=")))
170 {
171 TmpIndex++;
172 TmpCount--;
173
174 if (TmpCount > 0)
175 {
176 if (!lstrcmpi(ServiceArgs[TmpIndex], _T("service")))
177 {
178 *pdwServiceType = SERVICE_WIN32;
179 }
180 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("driver")))
181 {
182 *pdwServiceType = SERVICE_DRIVER;
183 }
184 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("all")))
185 {
186 *pdwServiceType = SERVICE_TYPE_ALL;
187 }
188 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("interact")))
189 {
190 *pdwServiceType |= SERVICE_INTERACTIVE_PROCESS;
191 }
192 else
193 {
194 _tprintf(_T("ERROR following \"type=\"!\nMust be one of: all, driver, interact, service.\n"));
195 return FALSE;
196 }
197
198 TmpIndex++;
199 TmpCount--;
200 }
201 }
202 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("state=")))
203 {
204 TmpIndex++;
205 TmpCount--;
206
207 if (TmpCount > 0)
208 {
209 if (!lstrcmpi(ServiceArgs[TmpIndex], _T("active")))
210 {
211 *pdwServiceState = SERVICE_ACTIVE;
212 }
213 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("inactive")))
214 {
215 *pdwServiceState = SERVICE_INACTIVE;
216 }
217 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("all")))
218 {
219 *pdwServiceState = SERVICE_STATE_ALL;
220 }
221 else
222 {
223 _tprintf(_T("ERROR following \"state=\"!\nMust be one of: active, all, inactive.\n"));
224 return FALSE;
225 }
226
227 TmpIndex++;
228 TmpCount--;
229 }
230 }
231 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("bufsize=")))
232 {
233 TmpIndex++;
234 TmpCount--;
235
236 if (TmpCount > 0)
237 {
238 dwValue = _tcstoul(ServiceArgs[TmpIndex], NULL, 10);
239 if (dwValue > 0)
240 {
241 *pdwBufferSize = dwValue;
242 }
243
244 TmpIndex++;
245 TmpCount--;
246 }
247 }
248 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("ri=")))
249 {
250 TmpIndex++;
251 TmpCount--;
252
253 if (TmpCount >= 0)
254 {
255 dwValue = _tcstoul(ServiceArgs[TmpIndex], NULL, 10);
256 if (dwValue > 0)
257 {
258 *pdwResumeIndex = dwValue;
259 }
260
261 TmpIndex++;
262 TmpCount--;
263 }
264 }
265 else if (!lstrcmpi(ServiceArgs[TmpIndex], _T("group=")))
266 {
267 TmpIndex++;
268 TmpCount--;
269
270 if (TmpCount > 0)
271 {
272 *ppszGroupName = ServiceArgs[TmpIndex];
273
274 TmpIndex++;
275 TmpCount--;
276 }
277 }
278 else
279 {
280 *ppszServiceName = ServiceArgs[TmpIndex];
281
282 TmpIndex++;
283 TmpCount--;
284 }
285 }
286
287 return TRUE;
288}
TRUE
#define TRUE
Definition: types.h:120
FALSE
#define FALSE
Definition: types.h:117
_tcstoul
#define _tcstoul
Definition: tchar.h:595
_tprintf
#define _tprintf
Definition: tchar.h:506
INT
int32_t INT
Definition: typedefs.h:58
_T
#define _T(x)
Definition: vfdio.h:22
lstrcmpi
#define lstrcmpi
Definition: winbase.h:3873
SERVICE_STATE_ALL
#define SERVICE_STATE_ALL
Definition: winsvc.h:52
SERVICE_ACTIVE
#define SERVICE_ACTIVE
Definition: winsvc.h:50
SERVICE_INACTIVE
#define SERVICE_INACTIVE
Definition: winsvc.h:51
SERVICE_TYPE_ALL
#define SERVICE_TYPE_ALL
Definition: cmtypes.h:969
SERVICE_INTERACTIVE_PROCESS
#define SERVICE_INTERACTIVE_PROCESS
Definition: cmtypes.h:967
SERVICE_DRIVER
#define SERVICE_DRIVER
Definition: cmtypes.h:958
SERVICE_WIN32
#define SERVICE_WIN32
Definition: cmtypes.h:964

Referenced by Query().

◆ Query()

BOOL Query ( LPCTSTR *  ServiceArgs,
DWORD  ArgCount,
BOOL  bExtended 
)

Definition at line 292 of file query.c.

295{
296 LPENUM_SERVICE_STATUS_PROCESS pServiceStatus = NULL;
297 DWORD NumServices = 0;
298 DWORD dwServiceType = SERVICE_WIN32;
299 DWORD dwServiceState = SERVICE_ACTIVE;
300 DWORD dwBufferSize = 0;
301 DWORD dwResumeIndex = 0;
302 LPCTSTR pszGroupName = NULL;
303 LPCTSTR pszServiceName = NULL;
304 DWORD i;
305
306#ifdef SCDBG
307 LPCTSTR *TmpArgs = ServiceArgs;
308 INT TmpCnt = ArgCount;
309
310 _tprintf(_T("Arguments:\n"));
311 while (TmpCnt)
312 {
313 _tprintf(_T(" %s\n"), *TmpArgs);
314 TmpArgs++;
315 TmpCnt--;
316 }
317 _tprintf(_T("\n"));
318#endif /* SCDBG */
319
320 /* Parse arguments */
321 if (!ParseQueryArguments(ServiceArgs,
322 ArgCount,
323 &dwServiceType,
324 &dwServiceState,
325 &dwBufferSize,
326 &dwResumeIndex,
327 &pszGroupName,
328 &pszServiceName))
329 return FALSE;
330
331#ifdef SCDBG
332 _tprintf(_T("Service type: %lx\n"), dwServiceType);
333 _tprintf(_T("Service state: %lx\n"), dwServiceState);
334 _tprintf(_T("Buffer size: %lu\n"), dwBufferSize);
335 _tprintf(_T("Resume index: %lu\n"), dwResumeIndex);
336 _tprintf(_T("Group name: %s\n"), pszGroupName);
337 _tprintf(_T("Service name: %s\n"), pszServiceName);
338#endif
339
340 if (pszServiceName)
341 {
342 /* Print only the requested service */
343
344 LPSERVICE_STATUS_PROCESS pStatus;
345
346 pStatus = QueryService(pszServiceName);
347 if (pStatus)
348 {
349 PrintService(pszServiceName,
350 NULL,
351 pStatus,
352 bExtended);
353
354 HeapFree(GetProcessHeap(), 0, pStatus);
355 }
356 }
357 else
358 {
359 /* Print all matching services */
360
361 NumServices = EnumServices(&pServiceStatus,
362 dwServiceType,
363 dwServiceState,
364 dwBufferSize,
365 dwResumeIndex,
366 pszGroupName);
367 if (NumServices == 0)
368 return FALSE;
369
370 for (i = 0; i < NumServices; i++)
371 {
372 PrintService(pServiceStatus[i].lpServiceName,
373 pServiceStatus[i].lpDisplayName,
374 &pServiceStatus[i].ServiceStatusProcess,
375 bExtended);
376 }
377
378#ifdef SCDBG
379 _tprintf(_T("number : %lu\n"), NumServices);
380#endif
381
382 if (pServiceStatus)
383 HeapFree(GetProcessHeap(), 0, pServiceStatus);
384 }
385
386 return TRUE;
387}
PrintService
VOID PrintService(LPCTSTR lpServiceName, LPCTSTR lpDisplayName, LPSERVICE_STATUS_PROCESS pStatus, BOOL bExtended)
Definition: print.c:13
QueryService
LPSERVICE_STATUS_PROCESS QueryService(LPCTSTR ServiceName)
Definition: query.c:13
ParseQueryArguments
static BOOL ParseQueryArguments(IN LPCTSTR *ServiceArgs, IN INT ArgCount, OUT PDWORD pdwServiceType, OUT PDWORD pdwServiceState, OUT PDWORD pdwBufferSize, OUT PDWORD pdwResumeIndex, OUT LPCTSTR *ppszGroupName, OUT LPCTSTR *ppszServiceName)
Definition: query.c:152
EnumServices
static DWORD EnumServices(ENUM_SERVICE_STATUS_PROCESS **pServiceStatus, DWORD dwServiceType, DWORD dwServiceState, DWORD dwBufferSize, DWORD dwResumeIndex, LPCTSTR pszGroupName)
Definition: query.c:75
pStatus
__in WDFDMATRANSACTION __out NTSTATUS * pStatus
Definition: fxdmatransactionapi.cpp:579
i
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
_SERVICE_STATUS_PROCESS
Definition: winsvc.h:107
lpDisplayName
_In_ LPCSTR _Out_writes_to_opt_ cchDisplayName LPSTR lpDisplayName
Definition: winbase.h:2790
LPCTSTR
const CHAR * LPCTSTR
Definition: xmlstorage.h:193

Referenced by BasepGetComputerNameFromNtPath(), IopQueryBusDescription(), IopQueryDeviceDescription(), IoQueryDeviceDescription(), NtQueryInformationProcess(), NtQuerySystemInformation(), PrintDiskData(), ScControl(), SHELL_IncludeItemInFolderEnum(), StorPortInitializePerfOpts(), Test_ApphelpCheckRunApp(), WSALookupServiceBeginW(), WSALookupServiceEnd(), WSALookupServiceNextW(), WsNqAddProvider(), WsNqDereference(), WsNqInitialize(), WsNqNextProvider(), WsNqPreviousProvider(), and WsNqValidateAndReference().

◆ QueryService()

LPSERVICE_STATUS_PROCESS QueryService ( LPCTSTR  ServiceName)

Definition at line 13 of file query.c.

14{
15 SC_HANDLE hSCManager = NULL;
16 LPSERVICE_STATUS_PROCESS pServiceInfo = NULL;
17 SC_HANDLE hSc = NULL;
18 DWORD BufSiz = 0;
19 DWORD BytesNeeded = 0;
20 DWORD Ret;
21
22 hSCManager = OpenSCManager(NULL,
23 NULL,
24 SC_MANAGER_CONNECT);
25 if (hSCManager == NULL)
26 {
27 ReportLastError();
28 return NULL;
29 }
30
31 hSc = OpenService(hSCManager,
32 ServiceName,
33 SERVICE_QUERY_STATUS);
34 if (hSc == NULL)
35 goto fail;
36
37 Ret = QueryServiceStatusEx(hSc,
38 SC_STATUS_PROCESS_INFO,
39 NULL,
40 BufSiz,
41 &BytesNeeded);
42 if ((Ret != 0) || (GetLastError() != ERROR_INSUFFICIENT_BUFFER))
43 goto fail;
44
45 pServiceInfo = (LPSERVICE_STATUS_PROCESS)HeapAlloc(GetProcessHeap(),
46 0,
47 BytesNeeded);
48 if (pServiceInfo == NULL)
49 goto fail;
50
51 if (!QueryServiceStatusEx(hSc,
52 SC_STATUS_PROCESS_INFO,
53 (LPBYTE)pServiceInfo,
54 BytesNeeded,
55 &BytesNeeded))
56 {
57 goto fail;
58 }
59
60 CloseServiceHandle(hSc);
61 CloseServiceHandle(hSCManager);
62 return pServiceInfo;
63
64fail:
65 ReportLastError();
66 if (pServiceInfo) HeapFree(GetProcessHeap(), 0, pServiceInfo);
67 if (hSc) CloseServiceHandle(hSc);
68 if (hSCManager) CloseServiceHandle(hSCManager);
69 return NULL;
70}
ServiceName
static WCHAR ServiceName[]
Definition: browser.c:19
ERROR_INSUFFICIENT_BUFFER
#define ERROR_INSUFFICIENT_BUFFER
Definition: dderror.h:10
QueryServiceStatusEx
BOOL WINAPI QueryServiceStatusEx(SC_HANDLE hService, SC_STATUS_TYPE InfoLevel, LPBYTE lpBuffer, DWORD cbBufSize, LPDWORD pcbBytesNeeded)
Definition: scm.c:2887
SERVICE_QUERY_STATUS
#define SERVICE_QUERY_STATUS
Definition: winsvc.h:55
SC_STATUS_PROCESS_INFO
@ SC_STATUS_PROCESS_INFO
Definition: winsvc.h:119
SC_MANAGER_CONNECT
#define SC_MANAGER_CONNECT
Definition: winsvc.h:14
LPSERVICE_STATUS_PROCESS
struct _SERVICE_STATUS_PROCESS * LPSERVICE_STATUS_PROCESS
OpenService
#define OpenService
Definition: winsvc.h:576

Referenced by Query(), and Start().