+const char w32_svrapi_rcs[] = "$Id$";
+/*********************************************************************
+ *
+ * File : $Source$
+ *
+ * Purpose : Win32 Services API for Privoxy.
+ * Provides the implementation of an Win32 service to
+ * allow the code to directly register and run as a
+ * native Windows service application.
+ *
+ * Since Win9x/ME platforms don't provide or support
+ * running programs as services, this code uses runtime
+ * loading and calling of the Win32 Service API, to
+ * prevent the possibility of getting "entry point not
+ * found" type errors on unsupported platforms. This adds
+ * a little more complexity to the code, but it is worth
+ * doing to provide that isolation.
+ *
+ * Copyright : Written by and Copyright (C) 2003 members of
+ * the Privoxy team. http://www.privoxy.org/
+ *
+ * Written by and Copyright (C) 2003 Ian Cummings
+ * <ian_a_c@hotmail.com>
+ *
+ * Special thanks to Mates Dolák <matesek@post.cz> for
+ * some very helpful feedback and suggestions during the
+ * development of this code.
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will
+ * be useful, but WITHOUT ANY WARRANTY; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU General Public
+ * License for more details.
+ *
+ * The GNU General Public License should be included with
+ * this file. If not, you can view it at
+ * http://www.gnu.org/copyleft/gpl.html
+ * or write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Revisions :
+ * $Log$
+ *
+ *
+ *********************************************************************/
+\f
+
+#include "config.h"
+
+#ifdef _WIN32
+
+#include <stdio.h>
+
+#ifndef STRICT
+#define STRICT
+#endif
+#include <windows.h>
+#include <process.h>
+
+#ifndef _WIN_CONSOLE
+# include "w32log.h"
+#endif /* ndef _WIN_CONSOLE */
+
+#include "w32svrapi.h"
+const char w32_svrapi_h_rcs[] = W32_SVRAPI_H_VERSION;
+
+
+/* Only the ANSI Win32 APIs are used at this time. If for some
+ * reason, we're building under unicode then we must stop
+ */
+#ifdef UNICODE
+#error "Privoxy interface to Win32 Services only runs under ANSI builds. Unicode is not supported at present, but you can volunteer for the job if you like! :)"
+#endif
+
+
+/* Default to not running as service, unless the command line says so */
+BOOL bRunAsService = FALSE;
+
+/* According to the Win32 docs for CreateService,
+ * the max length for the service name is 256 chars
+ */
+char szThisServiceName[260];
+
+static BOOL get_service_description(const char *pszServiceName, char *pszDisplayName, DWORD dwDispSize);
+static void WINAPI privoxy_w32_service_start(DWORD dw, LPSTR* psz);
+static void WINAPI privoxy_w32_service_handler(DWORD dwOpcode);
+SERVICE_TABLE_ENTRY w32ServiceDispatchTable[] = {{"", privoxy_w32_service_start}, {NULL, NULL}};
+static SERVICE_STATUS_HANDLE hSrv_status = 0;
+static SERVICE_STATUS srv_status;
+
+
+
+/*********************************************************************
+ * This function returns TRUE if we are running on an OS that can
+ * support services, like NT, etc. It returns FALSE for Win9x/ME.
+ *********************************************************************/
+static BOOL HasServiceControlManager()
+{
+ HMODULE hDll;
+ FARPROC pFunc;
+ SC_HANDLE hScm;
+
+ /* Load the DLL with the SCM functions or return a failure status */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ printf("Can't load Advapi32.dll -- LoadLibrary failed!\n");
+ return FALSE;
+ }
+
+ /* Get the address of the ANSI OpenSCManager function, or return a failure status */
+ pFunc = GetProcAddress(hDll, "OpenSCManagerA");
+ if (pFunc == NULL)
+ {
+ printf("Can't find OpenSCManagerA -- GetProcAddress failed!\n");
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ /* Try and connect to the SCM. If it fails check and see if the error
+ * code is ERROR_CALL_NOT_IMPLEMENTED, which means:
+ * "This function is not supported on this system."
+ */
+ hScm = (SC_HANDLE)(*pFunc)(NULL, NULL, SC_MANAGER_CONNECT);
+ if (hScm == NULL)
+ {
+ DWORD dwErr = GetLastError();
+ if (dwErr == ERROR_CALL_NOT_IMPLEMENTED)
+ {
+ /* Expected error under Win9x/Me, so don't print any debug info
+ * here as we'll leave that up to the calling function to do
+ */
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ printf("Call to OpenSCManager failed -- GetLastError() returned %lu!\n", dwErr);
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ w32_close_service_handle(hScm);
+
+ /* OpenSCManager function exists and works, so we're on an NT type platform */
+ FreeLibrary(hDll);
+
+ return TRUE;
+
+} /* -END- HasServiceControlManager */
+
+
+BOOL CanSystemSupportServices()
+{
+ BOOL bHasScm = HasServiceControlManager();
+ return bHasScm;
+
+} /* -END- CanSystemSupportServices */
+
+
+
+/*********************************************************************
+ *
+ * The Service functions are defined in <winsvc.h> which is where
+ * the declarations used in this file are taken from
+ *
+ *********************************************************************/
+
+
+/*********************************************************************
+ * Open a connection to the service control manager
+ *********************************************************************/
+SC_HANDLE w32_open_sc_manager(
+ LPCTSTR lpMachineName, /* computer name */
+ LPCTSTR lpDatabaseName, /* SCM database name */
+ DWORD dwDesiredAccess) /* access type */
+{
+ HMODULE hDll = NULL;
+ SC_HANDLE hScm = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+
+ /* Load the DLL with the SCM functions or return failure */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return NULL;
+ }
+
+ /* Get the address of the ANSI OpenSCManager function, or return failure */
+ pFunc = GetProcAddress(hDll, "OpenSCManagerA");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return NULL;
+ }
+
+ /* Call the SCM function, and save the error code */
+ hScm = (SC_HANDLE)(*pFunc)(lpMachineName, lpDatabaseName, dwDesiredAccess);
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return hScm;
+
+} /* -END- w32_open_sc_manager */
+
+
+
+BOOL w32_close_service_handle(
+ SC_HANDLE hSCObject) /* handle to service or SCM object */
+{
+ HMODULE hDll = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+ BOOL bRet;
+
+ /* Load the DLL with the SCM functions or return a failure status */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return FALSE;
+ }
+
+ /* Get the address of the CloseServiceHandle function, or return a failure status */
+ pFunc = GetProcAddress(hDll, "CloseServiceHandle");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ /* Close the handle, and save the error code */
+ bRet = (BOOL)(*pFunc)(hSCObject);
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return bRet;
+
+} /* -END- w32_close_service_handle */
+
+
+
+/*********************************************************************
+ * Open a service
+ *********************************************************************/
+SC_HANDLE w32_open_service(
+ SC_HANDLE hSCManager, /* handle to SCM database */
+ LPCTSTR lpServiceName, /* service name */
+ DWORD dwDesiredAccess) /* access */
+{
+ HMODULE hDll = NULL;
+ SC_HANDLE hSrv = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+
+ /* Load the DLL with the SCM functions or return failure */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return NULL;
+ }
+
+ /* Get the address of the ANSI OpenService function, or return failure */
+ pFunc = GetProcAddress(hDll, "OpenServiceA");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return NULL;
+ }
+
+ /* Call the SCM function, and save the error code */
+ hSrv = (SC_HANDLE)(*pFunc)(hSCManager, lpServiceName, dwDesiredAccess);
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return hSrv;
+
+} /* -END- w32_open_service */
+
+
+
+SC_HANDLE w32_create_service(
+ SC_HANDLE hSCManager, /* handle to SCM database */
+ LPCTSTR lpServiceName, /* name of service to start */
+ LPCTSTR lpDisplayName, /* display name */
+ DWORD dwDesiredAccess, /* type of access to service */
+ DWORD dwServiceType, /* type of service */
+ DWORD dwStartType, /* when to start service */
+ DWORD dwErrorControl, /* severity of service failure */
+ LPCTSTR lpBinaryPathName, /* name of binary file */
+ LPCTSTR lpLoadOrderGroup, /* name of load ordering group */
+ LPDWORD lpdwTagId, /* tag identifier */
+ LPCTSTR lpDependencies, /* array of dependency names */
+ LPCTSTR lpServiceStartName, /* account name */
+ LPCTSTR lpPassword) /* account password */
+{
+ HMODULE hDll = NULL;
+ SC_HANDLE hSrv = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+
+ /* Load the DLL with the SCM functions or return failure */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return NULL;
+ }
+
+ /* Get the address of the ANSI CreateService function, or return failure */
+ pFunc = GetProcAddress(hDll, "CreateServiceA");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return NULL;
+ }
+
+ /* Call the SCM function, and save the error code */
+ hSrv = (SC_HANDLE)(*pFunc)(hSCManager, /* handle to SCM database */
+ lpServiceName, /* name of service to start */
+ lpDisplayName, /* display name */
+ dwDesiredAccess, /* type of access to service */
+ dwServiceType, /* type of service */
+ dwStartType, /* when to start service */
+ dwErrorControl, /* severity of service failure */
+ lpBinaryPathName, /* name of binary file */
+ lpLoadOrderGroup, /* name of load ordering group */
+ lpdwTagId, /* tag identifier */
+ lpDependencies, /* array of dependency names */
+ lpServiceStartName, /* account name */
+ lpPassword); /* account password */
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return hSrv;
+
+} /* -END- w32_create_service */
+
+
+
+BOOL w32_delete_service(
+ SC_HANDLE hService) /* handle to service */
+{
+ HMODULE hDll = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+ BOOL bRet;
+
+ /* Load the DLL with the SCM functions or return a failure status */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return FALSE;
+ }
+
+ /* Get the address of the DeleteService function, or return a failure status */
+ pFunc = GetProcAddress(hDll, "DeleteService");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ /* Close the handle, and save the error code */
+ bRet = (BOOL)(*pFunc)(hService);
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return bRet;
+
+} /* -END- w32_delete_service */
+
+
+
+BOOL w32_query_service_config(
+ SC_HANDLE hService, /* handle to service */
+ LPQUERY_SERVICE_CONFIG lpServiceConfig, /* buffer */
+ DWORD cbBufSize, /* size of buffer */
+ LPDWORD pcbBytesNeeded) /* bytes needed */
+{
+ HMODULE hDll = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+ BOOL bRet;
+
+ /* Load the DLL with the SCM functions or return a failure status */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return FALSE;
+ }
+
+ /* Get the address of the QueryServiceConfig function, or return a failure status */
+ pFunc = GetProcAddress(hDll, "QueryServiceConfigA");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ /* Close the handle, and save the error code */
+ bRet = (BOOL)(*pFunc)(hService, lpServiceConfig, cbBufSize, pcbBytesNeeded);
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return bRet;
+
+} /* -END- w32_query_service_config */
+
+
+BOOL w32_start_service_ctrl_dispatcher(
+ CONST LPSERVICE_TABLE_ENTRY lpServiceTable) /* service table */
+{
+ HMODULE hDll = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+ BOOL bRet;
+
+ /* Load the DLL with the SCM functions or return a failure status */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return FALSE;
+ }
+
+ /* Get the address of the StartServiceCtrlDispatcher function, or return a failure status */
+ pFunc = GetProcAddress(hDll, "StartServiceCtrlDispatcherA");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ /* Close the handle, and save the error code */
+ bRet = (BOOL)(*pFunc)(lpServiceTable);
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return bRet;
+
+} /* -END- w32_start_service_ctrl_dispatcher */
+
+
+
+SERVICE_STATUS_HANDLE w32_register_service_ctrl_handler(
+ LPCTSTR lpServiceName, /* service name */
+ LPHANDLER_FUNCTION lpHandlerProc) /* handler function */
+{
+ HMODULE hDll = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+ BOOL bRet;
+
+ /* Load the DLL with the SCM functions or return a failure status */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return FALSE;
+ }
+
+ /* Get the address of the RegisterServiceCtrlHandler function, or return a failure status */
+ pFunc = GetProcAddress(hDll, "RegisterServiceCtrlHandlerA");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ /* Close the handle, and save the error code */
+ bRet = (BOOL)(*pFunc)(lpServiceName, lpHandlerProc);
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return bRet;
+
+} /* -END- w32_register_service_ctrl_handler */
+
+
+
+BOOL w32_set_service_status(
+ SERVICE_STATUS_HANDLE hServiceStatus, /* service status handle */
+ LPSERVICE_STATUS lpServiceStatus) /* status buffer */
+{
+ HMODULE hDll = NULL;
+ FARPROC pFunc = NULL;
+ DWORD dwLastErr = 0;
+ BOOL bRet;
+
+ /* Load the DLL with the SCM functions or return a failure status */
+ hDll = LoadLibrary("Advapi32.dll");
+ if (hDll == NULL)
+ {
+ return FALSE;
+ }
+
+ /* Get the address of the SetServiceStatus function, or return a failure status */
+ pFunc = GetProcAddress(hDll, "SetServiceStatus");
+ if (pFunc == NULL)
+ {
+ FreeLibrary(hDll);
+ return FALSE;
+ }
+
+ /* Close the handle, and save the error code */
+ bRet = (BOOL)(*pFunc)(hServiceStatus, lpServiceStatus);
+ dwLastErr = GetLastError();
+
+ /* Release the library and then restore the last error
+ * code, in case FreeLibrary altered it.
+ */
+ FreeLibrary(hDll);
+ SetLastError(dwLastErr);
+
+ return bRet;
+
+} /* -END- w32_set_service_status */
+
+
+static void display_win32_msg(BOOL bIsError, char *msg)
+{
+#ifdef _WIN_CONSOLE
+ printf("%s", msg);
+#else
+ if (bIsError)
+ {
+ MessageBox(NULL, msg, "Privoxy Error",
+ MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
+ }
+ else
+ {
+ MessageBox(NULL, msg, "Privoxy Information",
+ MB_OK | MB_ICONINFORMATION | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
+ }
+#endif
+
+} /* -END- display_win32_msg */
+
+
+static BOOL get_service_description(const char *pszServiceName, char *pszDisplayName, DWORD dwDispSize)
+{
+ /*********************************************************************
+ * Create a simple display name
+ *********************************************************************/
+ strcpy(pszDisplayName, "Privoxy (");
+ strncat(pszDisplayName, pszServiceName, dwDispSize - strlen(pszDisplayName) - 2);
+ strcat(pszDisplayName, ")");
+
+ return TRUE;
+}
+
+
+
+BOOL install_service(const char *service_name)
+{
+ char szModule[(MAX_PATH*2)+1];
+ char szDisplayName[MAX_PATH+2];
+ SC_HANDLE hSCM;
+ SC_HANDLE hService;
+
+ /*********************************************************************
+ * First check if this system can support a service architecture
+ *********************************************************************/
+ if (!CanSystemSupportServices())
+ {
+ display_win32_msg(TRUE, "This system doesn't support installing Privoxy as a service.\nWinNT/2000/XP are required for this feature.\n");
+ return FALSE;
+ }
+
+ /* Use a default service name if none was supplied */
+ if ((service_name == NULL) || (strlen(service_name) == 0))
+ {
+ service_name = "privoxy";
+ }
+
+ /*********************************************************************
+ * Open a handle to the Service Control Manager with full access rights
+ *********************************************************************/
+ hSCM = w32_open_sc_manager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+ if (hSCM == NULL)
+ {
+ display_win32_msg(TRUE, "Can't open Service Control Manager - Service install failed!\n Administrator rights are required to create a service.\n");
+ return FALSE;
+ }
+
+
+ /*********************************************************************
+ * Work out the full image path plus command line for the service
+ * We'll temporarily use szDisplayName as a second buffer.
+ *********************************************************************/
+ GetModuleFileName(NULL, szDisplayName, MAX_PATH);
+ sprintf(szModule, "\"%s\" --service", szDisplayName);
+
+
+ /*********************************************************************
+ * Get the display name for the service
+ *********************************************************************/
+ get_service_description(service_name, szDisplayName, sizeof(szDisplayName)/sizeof(char));
+
+
+ /*********************************************************************
+ * Create the service
+ *********************************************************************/
+ hService = w32_create_service(hSCM,
+ service_name, /* the internal service name */
+ szDisplayName, /* the display name */
+ SERVICE_ALL_ACCESS, /* get full access during creation */
+ SERVICE_WIN32_OWN_PROCESS /* run in our own process */
+#ifndef _WIN_CONSOLE
+ + SERVICE_INTERACTIVE_PROCESS /* GUI also wants interactive rights */
+#endif
+ ,
+ SERVICE_DEMAND_START, /* For now, only start when asked to */
+ SERVICE_ERROR_NORMAL, /* Normal error handling by the SCM */
+ szModule, /* The executable service file */
+ NULL, /* No load order info needed */
+ NULL, /* No load order info needed */
+ NULL, /* No dependencies */
+ NULL, /* Default to LocalSystem... */
+ NULL); /* ...which doesn't require a password */
+ if (hService == NULL)
+ {
+ display_win32_msg(TRUE, "Can't install service!\n");
+ w32_close_service_handle(hSCM);
+ return FALSE;
+ }
+
+ display_win32_msg(FALSE, "Service was successfully created.\n*** IMPORTANT NOTE: You should now use the Services control panel to\n*** configure the startup type and user account details for the service.\n\n");
+
+ /* tidy up */
+ w32_close_service_handle(hService);
+ w32_close_service_handle(hSCM);
+ return TRUE;
+
+} /* -END- install_service */
+
+
+
+BOOL uninstall_service(const char *service_name)
+{
+ char szDisplayName[MAX_PATH+2];
+ SC_HANDLE hSCM;
+ SC_HANDLE hService;
+ BOOL bResult = FALSE;
+
+
+ /*********************************************************************
+ * First check if this system can support a service architecture
+ *********************************************************************/
+ if (!CanSystemSupportServices())
+ {
+ display_win32_msg(TRUE, "This system doesn't support installing Privoxy as a service.\nWinNT/2000/XP are required for this feature.\n");
+ return FALSE;
+ }
+
+
+ /* Use a default service name if none was supplied */
+ if ((service_name == NULL) || (strlen(service_name) == 0))
+ {
+ service_name = "privoxy";
+ }
+
+
+ /*********************************************************************
+ * Open a handle to the Service Control Manager with full access rights
+ *********************************************************************/
+ hSCM = w32_open_sc_manager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
+ if (hSCM == NULL)
+ {
+ display_win32_msg(TRUE, "Can't open Service Control Manager - Service uninstall failed!\n Administrator rights are required to delete a service.\n");
+ return FALSE;
+ }
+
+
+ /*********************************************************************
+ * Get the display name for the service
+ *********************************************************************/
+ get_service_description(service_name, szDisplayName, sizeof(szDisplayName)/sizeof(char));
+
+
+ /*********************************************************************
+ * Open and then delete the service
+ *********************************************************************/
+ hService = w32_open_service(hSCM, service_name, DELETE);
+ if (hService == NULL)
+ {
+ display_win32_msg(TRUE, "Can't open service for delete access rights!\n");
+ w32_close_service_handle(hSCM);
+ return FALSE;
+ }
+
+ if (w32_delete_service(hService))
+ {
+ display_win32_msg(FALSE, "Service was deleted successfully.\n");
+ bResult = TRUE;
+ }
+ else
+ {
+ display_win32_msg(TRUE, "Service could not be deleted!\n");
+ bResult = FALSE;
+ }
+
+ w32_close_service_handle(hService);
+ w32_close_service_handle(hSCM);
+ return bResult;
+
+} /* -END- uninstall_service */
+
+
+
+/*********************************************************************
+ *
+ * Function : privoxy_w32_service_start
+ *
+ * Description : This is the entry point function for the service.
+ * In other words, it's the ServiceMain function.
+ *
+ * Parameters : Defined by the Win32 API, but not used here
+ *
+ * Returns : void
+ *
+ *********************************************************************/
+static void WINAPI privoxy_w32_service_start(DWORD dw, LPSTR* pszArgs)
+{
+ int child_id;
+
+ /* Arg zero is always the service name, and we need to
+ * know it when we call RegisterServiceCtrlHandler.
+ */
+ strcpy(szThisServiceName, pszArgs[0]);
+
+ /* Tell the SCM we are running */
+ srv_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
+ srv_status.dwCurrentState = SERVICE_RUNNING;
+ srv_status.dwCheckPoint = 0;
+ srv_status.dwControlsAccepted = SERVICE_ACCEPT_STOP;
+ srv_status.dwWin32ExitCode = NO_ERROR;
+ srv_status.dwServiceSpecificExitCode = 0;
+ srv_status.dwWaitHint = 0;
+
+ hSrv_status = w32_register_service_ctrl_handler(szThisServiceName, privoxy_w32_service_handler);
+ if (!hSrv_status)
+ {
+ return;
+ }
+ w32_set_service_status(hSrv_status, &srv_status);
+
+#ifndef FEATURE_PTHREAD
+ child_id = _beginthread(w32_service_listen_loop, 0, NULL);
+ if (child_id > 0)
+#else
+#error "FIXME: Do pthread stuff here!"
+#endif
+ {
+ w32_set_service_status(hSrv_status, &srv_status);
+ }
+ else
+ {
+ srv_status.dwCurrentState = SERVICE_STOPPED;
+ srv_status.dwCheckPoint = 0;
+ srv_status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
+ srv_status.dwServiceSpecificExitCode = ERROR_SERVICE_NO_THREAD;
+ w32_set_service_status(hSrv_status, &srv_status);
+ }
+}
+
+
+/*********************************************************************
+ *
+ * Function : w32_set_service_cwd
+ *
+ * Description : Simple function to change the current directory to
+ * the same location as the service executable.
+ *
+ * Parameters : void
+ *
+ * Returns : void
+ *
+ *********************************************************************/
+void w32_set_service_cwd(void)
+{
+ char exe_name[MAX_PATH+1];
+ char dir_name[MAX_PATH+1];
+ char *pszFile = NULL;
+
+ /* Get the exe name and path of the service */
+ if (GetModuleFileName(NULL, exe_name, MAX_PATH))
+ {
+ /* Ask the API to tell us where the filename portion starts */
+ if (GetFullPathName(exe_name, MAX_PATH, dir_name, &pszFile))
+ {
+ /* remove the filename from the string */
+ if (pszFile != NULL)
+ {
+ *pszFile = '\0';
+ /* We have just a directory path now, so make it current */
+ SetCurrentDirectory(dir_name);
+ }
+ }
+ }
+}
+
+
+/*********************************************************************
+ *
+ * Function : w32_service_exit_notify
+ *
+ * Description : This is a simple atexit function that is called by the
+ * C runtime after exit has been called. It allows the
+ * service code to detect when the app is about to die and
+ * send an quick notification to the SCM that the service
+ * now stopped.
+ *
+ * Parameters : void
+ *
+ * Returns : void
+ *
+ *********************************************************************/
+void w32_service_exit_notify(void)
+{
+ if (hSrv_status != 0)
+ {
+ if (srv_status.dwCurrentState != SERVICE_STOPPED)
+ {
+ srv_status.dwCurrentState = SERVICE_STOPPED;
+ srv_status.dwCheckPoint = 0;
+ srv_status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
+ srv_status.dwServiceSpecificExitCode = ERROR_PROCESS_ABORTED;
+ w32_set_service_status(hSrv_status, &srv_status);
+ }
+ }
+}
+
+
+static void w32_mini_exit(void *p)
+{
+ Sleep(100);
+#ifdef _WIN_CONSOLE
+ exit(0);
+#else
+ PostMessage(g_hwndLogFrame, WM_CLOSE, 0, 0);
+#endif /* def _WIN_CONSOLE */
+}
+
+
+/*********************************************************************
+ *
+ * Function : privoxy_w32_service_handler
+ *
+ * Description : This is the control message handler function for
+ * the service.
+ *
+ * Parameters : dwOpcode
+ * requested control code sent by SCM
+ *
+ * Returns : void
+ *
+ *********************************************************************/
+static void WINAPI privoxy_w32_service_handler(DWORD dwOpcode)
+{
+ switch(dwOpcode)
+ {
+ case SERVICE_CONTROL_STOP:
+ /* We've stopped
+ */
+ srv_status.dwCurrentState = SERVICE_STOPPED;
+ srv_status.dwCheckPoint = 0;
+ srv_status.dwWin32ExitCode = NO_ERROR;
+ srv_status.dwServiceSpecificExitCode = 0;
+
+ /* Maybe there is a more friendly way to stop, but this will do for now! */
+ w32_set_service_status(hSrv_status, &srv_status);
+
+ /* During testing, I kept getting error 109 (ERROR_BROKEN_PIPE) and
+ * as far as the SCM was concerned the service was still stopping,
+ * even after the process had disappeared.
+ *
+ * It seems that if we call exit in the ServiceMain thread, it causes
+ * the SCM to not recieve the status we sent in the line above. The
+ * simple fix was to create a new thread to actually call exit for us
+ * whilst this thread continues and returns to its caller.
+ */
+
+ if (_beginthread(w32_mini_exit, 0, NULL) < 0)
+ {
+ /* we failed to create the exit thread, so just force an exit here
+ * and the SCM will just have to go and whistle!
+ */
+ exit(0);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ w32_set_service_status(hSrv_status, &srv_status);
+}
+
+
+#endif /* ifdef _WIN32 */
+
projects / privoxy.git / commitdiff