Allow setting application priority.
[nssm.git] / service.cpp
index ef1ae42..72e0192 100644 (file)
 #include "nssm.h"\r
 \r
-SERVICE_STATUS service_status;\r
-SERVICE_STATUS_HANDLE service_handle;\r
-HANDLE wait_handle;\r
-HANDLE pid;\r
-static char service_name[SERVICE_NAME_LENGTH];\r
-char exe[EXE_LENGTH];\r
-char flags[CMD_LENGTH];\r
-char dir[MAX_PATH];\r
-\r
-static enum { NSSM_EXIT_RESTART, NSSM_EXIT_IGNORE, NSSM_EXIT_REALLY } exit_actions;\r
-static const char *exit_action_strings[] = { "Restart", "Ignore", "Exit", 0 };\r
+/* This is explicitly a wide string. */\r
+#define NSSM_LOGON_AS_SERVICE_RIGHT L"SeServiceLogonRight"\r
+\r
+bool is_admin;\r
+bool use_critical_section;\r
+\r
+extern imports_t imports;\r
+extern settings_t settings[];\r
+\r
+const TCHAR *exit_action_strings[] = { _T("Restart"), _T("Ignore"), _T("Exit"), _T("Suicide"), 0 };\r
+const TCHAR *startup_strings[] = { _T("SERVICE_AUTO_START"), _T("SERVICE_DELAYED_AUTO_START"), _T("SERVICE_DEMAND_START"), _T("SERVICE_DISABLED"), 0 };\r
+const TCHAR *priority_strings[] = { _T("REALTIME_PRIORITY_CLASS"), _T("HIGH_PRIORITY_CLASS"), _T("ABOVE_NORMAL_PRIORITY_CLASS"), _T("NORMAL_PRIORITY_CLASS"), _T("BELOW_NORMAL_PRIORITY_CLASS"), _T("IDLE_PRIORITY_CLASS"), 0 };\r
+\r
+inline unsigned long priority_mask() {\r
+ return REALTIME_PRIORITY_CLASS | HIGH_PRIORITY_CLASS | ABOVE_NORMAL_PRIORITY_CLASS | NORMAL_PRIORITY_CLASS | BELOW_NORMAL_PRIORITY_CLASS | IDLE_PRIORITY_CLASS;\r
+}\r
+\r
+int priority_constant_to_index(unsigned long constant) {\r
+  switch (constant & priority_mask()) {\r
+    case REALTIME_PRIORITY_CLASS: return NSSM_REALTIME_PRIORITY;\r
+    case HIGH_PRIORITY_CLASS: return NSSM_HIGH_PRIORITY;\r
+    case ABOVE_NORMAL_PRIORITY_CLASS: return NSSM_ABOVE_NORMAL_PRIORITY;\r
+    case BELOW_NORMAL_PRIORITY_CLASS: return NSSM_BELOW_NORMAL_PRIORITY;\r
+    case IDLE_PRIORITY_CLASS: return NSSM_IDLE_PRIORITY;\r
+  }\r
+  return NSSM_NORMAL_PRIORITY;\r
+}\r
+\r
+unsigned long priority_index_to_constant(int index) {\r
+  switch (index) {\r
+    case NSSM_REALTIME_PRIORITY: return REALTIME_PRIORITY_CLASS;\r
+    case NSSM_HIGH_PRIORITY: return HIGH_PRIORITY_CLASS;\r
+    case NSSM_ABOVE_NORMAL_PRIORITY: return ABOVE_NORMAL_PRIORITY_CLASS;\r
+    case NSSM_BELOW_NORMAL_PRIORITY: return BELOW_NORMAL_PRIORITY_CLASS;\r
+    case NSSM_IDLE_PRIORITY: return IDLE_PRIORITY_CLASS;\r
+  }\r
+  return NORMAL_PRIORITY_CLASS;\r
+}\r
+\r
+static inline int throttle_milliseconds(unsigned long throttle) {\r
+  /* pow() operates on doubles. */\r
+  int ret = 1; for (unsigned long i = 1; i < throttle; i++) ret *= 2;\r
+  return ret * 1000;\r
+}\r
+\r
+/*\r
+  Wrapper to be called in a new thread so that we can acknowledge a STOP\r
+  control immediately.\r
+*/\r
+static unsigned long WINAPI shutdown_service(void *arg) {\r
+  return stop_service((nssm_service_t *) arg, 0, true, true);\r
+}\r
 \r
 /* Connect to the service manager */\r
 SC_HANDLE open_service_manager() {\r
   SC_HANDLE ret = OpenSCManager(0, SERVICES_ACTIVE_DATABASE, SC_MANAGER_ALL_ACCESS);\r
   if (! ret) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENSCMANAGER_FAILED, 0);\r
+    if (is_admin) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENSCMANAGER_FAILED, 0);\r
     return 0;\r
   }\r
 \r
   return ret;\r
 }\r
 \r
+/* Open a service by name or display name. */\r
+SC_HANDLE open_service(SC_HANDLE services, TCHAR *service_name, TCHAR *canonical_name, unsigned long canonical_namelen) {\r
+  SC_HANDLE service_handle = OpenService(services, service_name, SERVICE_ALL_ACCESS);\r
+  if (service_handle) {\r
+    if (canonical_name && canonical_name != service_name) {\r
+      if (_sntprintf_s(canonical_name, canonical_namelen, _TRUNCATE, _T("%s"), service_name) < 0) {\r
+        print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("canonical_name"), _T("open_service()"));\r
+        return 0;\r
+      }\r
+    }\r
+    return service_handle;\r
+  }\r
+\r
+  unsigned long error = GetLastError();\r
+  if (error != ERROR_SERVICE_DOES_NOT_EXIST) {\r
+    print_message(stderr, NSSM_MESSAGE_OPENSERVICE_FAILED, error_string(GetLastError()));\r
+    return 0;\r
+  }\r
+\r
+  /* We can't look for a display name because there's no buffer to store it. */\r
+  if (! canonical_name) {\r
+    print_message(stderr, NSSM_MESSAGE_OPENSERVICE_FAILED, error_string(GetLastError()));\r
+    return 0;\r
+  }\r
+\r
+  unsigned long bufsize, required, count, i;\r
+  unsigned long resume = 0;\r
+  EnumServicesStatus(services, SERVICE_DRIVER | SERVICE_FILE_SYSTEM_DRIVER | SERVICE_KERNEL_DRIVER | SERVICE_WIN32, SERVICE_STATE_ALL, 0, 0, &required, &count, &resume);\r
+  error = GetLastError();\r
+  if (error != ERROR_MORE_DATA) {\r
+    print_message(stderr, NSSM_MESSAGE_ENUMSERVICESSTATUS_FAILED, error_string(GetLastError()));\r
+    return 0;\r
+  }\r
+\r
+  ENUM_SERVICE_STATUS *status = (ENUM_SERVICE_STATUS *) HeapAlloc(GetProcessHeap(), 0, required);\r
+  if (! status) {\r
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("ENUM_SERVICE_STATUS"), _T("open_service()"));\r
+    return 0;\r
+  }\r
+\r
+  bufsize = required;\r
+  while (true) {\r
+    /*\r
+      EnumServicesStatus() returns:\r
+      1 when it retrieved data and there's no more data to come.\r
+      0 and sets last error to ERROR_MORE_DATA when it retrieved data and\r
+        there's more data to come.\r
+      0 and sets last error to something else on error.\r
+    */\r
+    int ret = EnumServicesStatus(services, SERVICE_DRIVER | SERVICE_FILE_SYSTEM_DRIVER | SERVICE_KERNEL_DRIVER | SERVICE_WIN32, SERVICE_STATE_ALL, status, bufsize, &required, &count, &resume);\r
+    if (! ret) {\r
+      error = GetLastError();\r
+      if (error != ERROR_MORE_DATA) {\r
+        HeapFree(GetProcessHeap(), 0, status);\r
+        print_message(stderr, NSSM_MESSAGE_ENUMSERVICESSTATUS_FAILED, error_string(GetLastError()));\r
+        return 0;\r
+      }\r
+    }\r
+\r
+    for (i = 0; i < count; i++) {\r
+      if (str_equiv(status[i].lpDisplayName, service_name)) {\r
+        if (_sntprintf_s(canonical_name, canonical_namelen, _TRUNCATE, _T("%s"), status[i].lpServiceName) < 0) {\r
+          HeapFree(GetProcessHeap(), 0, status);\r
+          print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("canonical_name"), _T("open_service()"));\r
+          return 0;\r
+        }\r
+\r
+        HeapFree(GetProcessHeap(), 0, status);\r
+        return open_service(services, canonical_name, 0, 0);\r
+      }\r
+    }\r
+\r
+    if (ret) break;\r
+  }\r
+\r
+  /* Recurse so we can get an error message. */\r
+  return open_service(services, service_name, 0, 0);\r
+}\r
+\r
+QUERY_SERVICE_CONFIG *query_service_config(const TCHAR *service_name, SC_HANDLE service_handle) {\r
+  QUERY_SERVICE_CONFIG *qsc;\r
+  unsigned long bufsize;\r
+  unsigned long error;\r
+\r
+  QueryServiceConfig(service_handle, 0, 0, &bufsize);\r
+  error = GetLastError();\r
+  if (error == ERROR_INSUFFICIENT_BUFFER) {\r
+    qsc = (QUERY_SERVICE_CONFIG *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, bufsize);\r
+    if (! qsc) {\r
+      print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("QUERY_SERVICE_CONFIG"), _T("query_service_config()"), 0);\r
+      return 0;\r
+    }\r
+  }\r
+  else {\r
+    print_message(stderr, NSSM_MESSAGE_QUERYSERVICECONFIG_FAILED, service_name, error_string(error), 0);\r
+    return 0;\r
+  }\r
+\r
+  if (! QueryServiceConfig(service_handle, qsc, bufsize, &bufsize)) {\r
+    HeapFree(GetProcessHeap(), 0, qsc);\r
+    print_message(stderr, NSSM_MESSAGE_QUERYSERVICECONFIG_FAILED, service_name, error_string(GetLastError()), 0);\r
+    return 0;\r
+  }\r
+\r
+  return qsc;\r
+}\r
+\r
+int set_service_description(const TCHAR *service_name, SC_HANDLE service_handle, TCHAR *buffer) {\r
+  SERVICE_DESCRIPTION description;\r
+  ZeroMemory(&description, sizeof(description));\r
+  /*\r
+    lpDescription must be NULL if we aren't changing, the new description\r
+    or "".\r
+  */\r
+  if (buffer && buffer[0]) description.lpDescription = buffer;\r
+  else description.lpDescription = _T("");\r
+\r
+  if (ChangeServiceConfig2(service_handle, SERVICE_CONFIG_DESCRIPTION, &description)) return 0;\r
+\r
+  log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SERVICE_CONFIG_DESCRIPTION_FAILED, service_name, error_string(GetLastError()), 0);\r
+  return 1;\r
+}\r
+\r
+int get_service_description(const TCHAR *service_name, SC_HANDLE service_handle, unsigned long len, TCHAR *buffer) {\r
+  if (! buffer) return 1;\r
+\r
+  unsigned long bufsize;\r
+  QueryServiceConfig2(service_handle, SERVICE_CONFIG_DESCRIPTION, 0, 0, &bufsize);\r
+  unsigned long error = GetLastError();\r
+  if (error == ERROR_INSUFFICIENT_BUFFER) {\r
+    SERVICE_DESCRIPTION *description = (SERVICE_DESCRIPTION *) HeapAlloc(GetProcessHeap(), 0, bufsize);\r
+    if (! description) {\r
+      print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("SERVICE_CONFIG_DESCRIPTION"), _T("get_service_description()"));\r
+      return 2;\r
+    }\r
+\r
+    if (QueryServiceConfig2(service_handle, SERVICE_CONFIG_DESCRIPTION, (unsigned char *) description, bufsize, &bufsize)) {\r
+      if (description->lpDescription) _sntprintf_s(buffer, len, _TRUNCATE, _T("%s"), description->lpDescription);\r
+      else ZeroMemory(buffer, len * sizeof(TCHAR));\r
+      HeapFree(GetProcessHeap(), 0, description);\r
+      return 0;\r
+    }\r
+    else {\r
+      HeapFree(GetProcessHeap(), 0, description);\r
+      print_message(stderr, NSSM_MESSAGE_QUERYSERVICECONFIG2_FAILED, service_name, _T("SERVICE_CONFIG_DESCRIPTION"), error_string(error));\r
+      return 3;\r
+    }\r
+  }\r
+  else {\r
+    print_message(stderr, NSSM_MESSAGE_QUERYSERVICECONFIG2_FAILED, service_name, _T("SERVICE_CONFIG_DESCRIPTION"), error_string(error));\r
+    return 4;\r
+  }\r
+\r
+  return 0;\r
+}\r
+\r
+int get_service_startup(const TCHAR *service_name, SC_HANDLE service_handle, const QUERY_SERVICE_CONFIG *qsc, unsigned long *startup) {\r
+  if (! qsc) return 1;\r
+\r
+  switch (qsc->dwStartType) {\r
+    case SERVICE_DEMAND_START: *startup = NSSM_STARTUP_MANUAL; break;\r
+    case SERVICE_DISABLED: *startup = NSSM_STARTUP_DISABLED; break;\r
+    default: *startup = NSSM_STARTUP_AUTOMATIC;\r
+  }\r
+\r
+  if (*startup != NSSM_STARTUP_AUTOMATIC) return 0;\r
+\r
+  /* Check for delayed start. */\r
+  unsigned long bufsize;\r
+  unsigned long error;\r
+  QueryServiceConfig2(service_handle, SERVICE_CONFIG_DELAYED_AUTO_START_INFO, 0, 0, &bufsize);\r
+  error = GetLastError();\r
+  if (error == ERROR_INSUFFICIENT_BUFFER) {\r
+    SERVICE_DELAYED_AUTO_START_INFO *info = (SERVICE_DELAYED_AUTO_START_INFO *) HeapAlloc(GetProcessHeap(), 0, bufsize);\r
+    if (! info) {\r
+      print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("SERVICE_DELAYED_AUTO_START_INFO"), _T("get_service_startup()"));\r
+      return 2;\r
+    }\r
+\r
+    if (QueryServiceConfig2(service_handle, SERVICE_CONFIG_DELAYED_AUTO_START_INFO, (unsigned char *) info, bufsize, &bufsize)) {\r
+      if (info->fDelayedAutostart) *startup = NSSM_STARTUP_DELAYED;\r
+      HeapFree(GetProcessHeap(), 0, info);\r
+      return 0;\r
+    }\r
+    else {\r
+      error = GetLastError();\r
+      if (error != ERROR_INVALID_LEVEL) {\r
+        print_message(stderr, NSSM_MESSAGE_QUERYSERVICECONFIG2_FAILED, service_name, _T("SERVICE_CONFIG_DELAYED_AUTO_START_INFO"), error_string(error));\r
+        return 3;\r
+      }\r
+    }\r
+  }\r
+  else if (error != ERROR_INVALID_LEVEL) {\r
+    print_message(stderr, NSSM_MESSAGE_QUERYSERVICECONFIG2_FAILED, service_name, _T("SERVICE_DELAYED_AUTO_START_INFO"), error_string(error));\r
+    return 3;\r
+  }\r
+\r
+  return 0;\r
+}\r
+\r
+int get_service_username(const TCHAR *service_name, const QUERY_SERVICE_CONFIG *qsc, TCHAR **username, size_t *usernamelen) {\r
+  if (! username) return 1;\r
+  if (! usernamelen) return 1;\r
+\r
+  *username = 0;\r
+  *usernamelen = 0;\r
+\r
+  if (! qsc) return 1;\r
+\r
+  if (str_equiv(qsc->lpServiceStartName, NSSM_LOCALSYSTEM_ACCOUNT)) return 0;\r
+\r
+  size_t len = _tcslen(qsc->lpServiceStartName);\r
+  *username = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(TCHAR));\r
+  if (! *username) {\r
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("username"), _T("get_service_username()"));\r
+    return 2;\r
+  }\r
+\r
+  memmove(*username, qsc->lpServiceStartName, (len + 1) * sizeof(TCHAR));\r
+  *usernamelen = len;\r
+\r
+  return 0;\r
+}\r
+\r
+int grant_logon_as_service(const TCHAR *username) {\r
+  if (! username) return 0;\r
+  if (str_equiv(username, NSSM_LOCALSYSTEM_ACCOUNT)) return 0;\r
+\r
+  /* Open Policy object. */\r
+  LSA_OBJECT_ATTRIBUTES attributes;\r
+  ZeroMemory(&attributes, sizeof(attributes));\r
+\r
+  LSA_HANDLE policy;\r
+\r
+  NTSTATUS status = LsaOpenPolicy(0, &attributes, POLICY_ALL_ACCESS, &policy);\r
+  if (status) {\r
+    print_message(stderr, NSSM_MESSAGE_LSAOPENPOLICY_FAILED, error_string(LsaNtStatusToWinError(status)));\r
+    return 1;\r
+  }\r
+\r
+  /* Look up SID for the account. */\r
+  LSA_UNICODE_STRING lsa_username;\r
+#ifdef UNICODE\r
+  lsa_username.Buffer = (wchar_t *) username;\r
+  lsa_username.Length = (unsigned short) _tcslen(username) * sizeof(TCHAR);\r
+  lsa_username.MaximumLength = lsa_username.Length + sizeof(TCHAR);\r
+#else\r
+  size_t buflen;\r
+  mbstowcs_s(&buflen, NULL, 0, username, _TRUNCATE);\r
+  lsa_username.MaximumLength = (unsigned short) buflen * sizeof(wchar_t);\r
+  lsa_username.Length = lsa_username.MaximumLength - sizeof(wchar_t);\r
+  lsa_username.Buffer = (wchar_t *) HeapAlloc(GetProcessHeap(), 0, lsa_username.MaximumLength);\r
+  if (lsa_username.Buffer) mbstowcs_s(&buflen, lsa_username.Buffer, lsa_username.MaximumLength, username, _TRUNCATE);\r
+  else {\r
+    LsaClose(policy);\r
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("LSA_UNICODE_STRING"), _T("grant_logon_as_service()"));\r
+    return 2;\r
+  }\r
+#endif\r
+\r
+  LSA_REFERENCED_DOMAIN_LIST *translated_domains;\r
+  LSA_TRANSLATED_SID *translated_sid;\r
+  status = LsaLookupNames(policy, 1, &lsa_username, &translated_domains, &translated_sid);\r
+#ifndef UNICODE\r
+  HeapFree(GetProcessHeap(), 0, lsa_username.Buffer);\r
+#endif\r
+  if (status) {\r
+    LsaFreeMemory(translated_domains);\r
+    LsaFreeMemory(translated_sid);\r
+    LsaClose(policy);\r
+    print_message(stderr, NSSM_MESSAGE_LSALOOKUPNAMES_FAILED, username, error_string(LsaNtStatusToWinError(status)));\r
+    return 3;\r
+  }\r
+\r
+  if (translated_sid->Use != SidTypeUser) {\r
+    LsaFreeMemory(translated_domains);\r
+    LsaFreeMemory(translated_sid);\r
+    LsaClose(policy);\r
+    print_message(stderr, NSSM_GUI_INVALID_USERNAME, username);\r
+    return 4;\r
+  }\r
+\r
+  LSA_TRUST_INFORMATION *trust = &translated_domains->Domains[translated_sid->DomainIndex];\r
+  if (! trust || ! IsValidSid(trust->Sid)) {\r
+    LsaFreeMemory(translated_domains);\r
+    LsaFreeMemory(translated_sid);\r
+    LsaClose(policy);\r
+    print_message(stderr, NSSM_GUI_INVALID_USERNAME, username);\r
+    return 4;\r
+  }\r
+\r
+  /* GetSidSubAuthority*() return pointers! */\r
+  unsigned char *n = GetSidSubAuthorityCount(trust->Sid);\r
+\r
+  /* Convert translated SID to SID. */\r
+  SID *sid = (SID *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, GetSidLengthRequired(*n + 1));\r
+  if (! sid) {\r
+    LsaFreeMemory(translated_domains);\r
+    LsaFreeMemory(translated_sid);\r
+    LsaClose(policy);\r
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("SID"), _T("grant_logon_as_service"));\r
+    return 4;\r
+  }\r
+\r
+  unsigned long error;\r
+  if (! InitializeSid(sid, GetSidIdentifierAuthority(trust->Sid), *n + 1)) {\r
+    error = GetLastError();\r
+    HeapFree(GetProcessHeap(), 0, sid);\r
+    LsaFreeMemory(translated_domains);\r
+    LsaFreeMemory(translated_sid);\r
+    LsaClose(policy);\r
+    print_message(stderr, NSSM_MESSAGE_INITIALIZESID_FAILED, username, error_string(error));\r
+    return 5;\r
+  }\r
+\r
+  for (unsigned char i = 0; i <= *n; i++) {\r
+    unsigned long *sub = GetSidSubAuthority(sid, i);\r
+    if (i < *n) *sub = *GetSidSubAuthority(trust->Sid, i);\r
+    else *sub = translated_sid->RelativeId;\r
+  }\r
+\r
+  LsaFreeMemory(translated_domains);\r
+  LsaFreeMemory(translated_sid);\r
+\r
+  /* Check if the SID has the "Log on as a service" right. */\r
+  LSA_UNICODE_STRING lsa_right;\r
+  lsa_right.Buffer = NSSM_LOGON_AS_SERVICE_RIGHT;\r
+  lsa_right.Length = (unsigned short) wcslen(lsa_right.Buffer) * sizeof(wchar_t);\r
+  lsa_right.MaximumLength = lsa_right.Length + sizeof(wchar_t);\r
+\r
+  LSA_UNICODE_STRING *rights;\r
+  unsigned long count = ~0;\r
+  status = LsaEnumerateAccountRights(policy, sid, &rights, &count);\r
+  if (status) {\r
+    /*\r
+      If the account has no rights set LsaEnumerateAccountRights() will return\r
+      STATUS_OBJECT_NAME_NOT_FOUND and set count to 0.\r
+    */\r
+    error = LsaNtStatusToWinError(status);\r
+    if (error != ERROR_FILE_NOT_FOUND) {\r
+      HeapFree(GetProcessHeap(), 0, sid);\r
+      LsaClose(policy);\r
+      print_message(stderr, NSSM_MESSAGE_LSAENUMERATEACCOUNTRIGHTS_FAILED, username, error_string(error));\r
+      return 4;\r
+    }\r
+  }\r
+\r
+  for (unsigned long i = 0; i < count; i++) {\r
+    if (rights[i].Length != lsa_right.Length) continue;\r
+    if (_wcsnicmp(rights[i].Buffer, lsa_right.Buffer, lsa_right.MaximumLength)) continue;\r
+    /* The SID has the right. */\r
+    HeapFree(GetProcessHeap(), 0, sid);\r
+    LsaFreeMemory(rights);\r
+    LsaClose(policy);\r
+    return 0;\r
+  }\r
+  LsaFreeMemory(rights);\r
+\r
+  /* Add the right. */\r
+  status = LsaAddAccountRights(policy, sid, &lsa_right, 1);\r
+  HeapFree(GetProcessHeap(), 0, sid);\r
+  LsaClose(policy);\r
+  if (status) {\r
+    print_message(stderr, NSSM_MESSAGE_LSAADDACCOUNTRIGHTS_FAILED, error_string(LsaNtStatusToWinError(status)));\r
+    return 5;\r
+  }\r
+\r
+  print_message(stdout, NSSM_MESSAGE_GRANTED_LOGON_AS_SERVICE, username);\r
+  return 0;\r
+}\r
+\r
+/* Set default values which aren't zero. */\r
+void set_nssm_service_defaults(nssm_service_t *service) {\r
+  if (! service) return;\r
+\r
+  service->type = SERVICE_WIN32_OWN_PROCESS;\r
+  service->priority = NORMAL_PRIORITY_CLASS;\r
+  service->stdin_sharing = NSSM_STDIN_SHARING;\r
+  service->stdin_disposition = NSSM_STDIN_DISPOSITION;\r
+  service->stdin_flags = NSSM_STDIN_FLAGS;\r
+  service->stdout_sharing = NSSM_STDOUT_SHARING;\r
+  service->stdout_disposition = NSSM_STDOUT_DISPOSITION;\r
+  service->stdout_flags = NSSM_STDOUT_FLAGS;\r
+  service->stderr_sharing = NSSM_STDERR_SHARING;\r
+  service->stderr_disposition = NSSM_STDERR_DISPOSITION;\r
+  service->stderr_flags = NSSM_STDERR_FLAGS;\r
+  service->throttle_delay = NSSM_RESET_THROTTLE_RESTART;\r
+  service->stop_method = ~0;\r
+  service->kill_console_delay = NSSM_KILL_CONSOLE_GRACE_PERIOD;\r
+  service->kill_window_delay = NSSM_KILL_WINDOW_GRACE_PERIOD;\r
+  service->kill_threads_delay = NSSM_KILL_THREADS_GRACE_PERIOD;\r
+}\r
+\r
+/* Allocate and zero memory for a service. */\r
+nssm_service_t *alloc_nssm_service() {\r
+  nssm_service_t *service = (nssm_service_t *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(nssm_service_t));\r
+  if (! service) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("service"), _T("alloc_nssm_service()"), 0);\r
+  return service;\r
+}\r
+\r
+/* Free memory for a service. */\r
+void cleanup_nssm_service(nssm_service_t *service) {\r
+  if (! service) return;\r
+  if (service->username) HeapFree(GetProcessHeap(), 0, service->username);\r
+  if (service->password) {\r
+    SecureZeroMemory(service->password, service->passwordlen);\r
+    HeapFree(GetProcessHeap(), 0, service->password);\r
+  }\r
+  if (service->env) HeapFree(GetProcessHeap(), 0, service->env);\r
+  if (service->env_extra) HeapFree(GetProcessHeap(), 0, service->env_extra);\r
+  if (service->handle) CloseServiceHandle(service->handle);\r
+  if (service->process_handle) CloseHandle(service->process_handle);\r
+  if (service->wait_handle) UnregisterWait(service->process_handle);\r
+  if (service->throttle_section_initialised) DeleteCriticalSection(&service->throttle_section);\r
+  if (service->throttle_timer) CloseHandle(service->throttle_timer);\r
+  HeapFree(GetProcessHeap(), 0, service);\r
+}\r
+\r
 /* About to install the service */\r
-int pre_install_service(int argc, char **argv) {\r
-  /* Show the dialogue box if we didn't give the */\r
-  if (argc < 2) return nssm_gui(IDD_INSTALL, argv[0]);\r
+int pre_install_service(int argc, TCHAR **argv) {\r
+  nssm_service_t *service = alloc_nssm_service();\r
+  set_nssm_service_defaults(service);\r
+  if (argc) _sntprintf_s(service->name, _countof(service->name), _TRUNCATE, _T("%s"), argv[0]);\r
+\r
+  /* Show the dialogue box if we didn't give the service name and path */\r
+  if (argc < 2) return nssm_gui(IDD_INSTALL, service);\r
+\r
+  if (! service) {\r
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("service"), _T("pre_install_service()"));\r
+    return 1;\r
+  }\r
+  _sntprintf_s(service->exe, _countof(service->exe), _TRUNCATE, _T("%s"), argv[1]);\r
 \r
   /* Arguments are optional */\r
-  char *flags;\r
-  if (argc == 2) flags = "";\r
-  else flags = argv[2];\r
+  size_t flagslen = 0;\r
+  size_t s = 0;\r
+  int i;\r
+  for (i = 2; i < argc; i++) flagslen += _tcslen(argv[i]) + 1;\r
+  if (! flagslen) flagslen = 1;\r
+  if (flagslen > _countof(service->flags)) {\r
+    print_message(stderr, NSSM_MESSAGE_FLAGS_TOO_LONG);\r
+    return 2;\r
+  }\r
+\r
+  for (i = 2; i < argc; i++) {\r
+    size_t len = _tcslen(argv[i]);\r
+    memmove(service->flags + s, argv[i], len * sizeof(TCHAR));\r
+    s += len;\r
+    if (i < argc - 1) service->flags[s++] = _T(' ');\r
+  }\r
+\r
+  /* Work out directory name */\r
+  _sntprintf_s(service->dir, _countof(service->dir), _TRUNCATE, _T("%s"), service->exe);\r
+  strip_basename(service->dir);\r
+\r
+  int ret = install_service(service);\r
+  cleanup_nssm_service(service);\r
+  return ret;\r
+}\r
+\r
+/* About to edit the service. */\r
+int pre_edit_service(int argc, TCHAR **argv) {\r
+  /* Require service name. */\r
+  if (argc < 2) return usage(1);\r
+\r
+  /* Are we editing on the command line? */\r
+  enum { MODE_EDITING, MODE_GETTING, MODE_SETTING, MODE_RESETTING } mode = MODE_EDITING;\r
+  const TCHAR *verb = argv[0];\r
+  const TCHAR *service_name = argv[1];\r
+  bool getting = false;\r
+  bool unsetting = false;\r
+\r
+  /* Minimum number of arguments. */\r
+  int mandatory = 2;\r
+  /* Index of first value. */\r
+  int remainder = 3;\r
+  int i;\r
+  if (str_equiv(verb, _T("get"))) {\r
+    mandatory = 3;\r
+    mode = MODE_GETTING;\r
+  }\r
+  else if (str_equiv(verb, _T("set"))) {\r
+    mandatory = 4;\r
+    mode = MODE_SETTING;\r
+  }\r
+  else if (str_equiv(verb, _T("reset")) || str_equiv(verb, _T("unset"))) {\r
+    mandatory = 3;\r
+    mode = MODE_RESETTING;\r
+  }\r
+  if (argc < mandatory) return usage(1);\r
+\r
+  const TCHAR *parameter = 0;\r
+  settings_t *setting = 0;\r
+  TCHAR *additional;\r
+\r
+  /* Validate the parameter. */\r
+  if (mandatory > 2) {\r
+    bool additional_mandatory = false;\r
+\r
+    parameter = argv[2];\r
+    for (i = 0; settings[i].name; i++) {\r
+      setting = &settings[i];\r
+      if (! str_equiv(setting->name, parameter)) continue;\r
+      if (((setting->additional & ADDITIONAL_GETTING) && mode == MODE_GETTING) || ((setting->additional & ADDITIONAL_SETTING) && mode == MODE_SETTING) || ((setting->additional & ADDITIONAL_RESETTING) && mode == MODE_RESETTING)) {\r
+        additional_mandatory = true;\r
+        mandatory++;\r
+      }\r
+      break;\r
+    }\r
+    if (! settings[i].name) {\r
+      print_message(stderr, NSSM_MESSAGE_INVALID_PARAMETER, parameter);\r
+      for (i = 0; settings[i].name; i++) _ftprintf(stderr, _T("%s\n"), settings[i].name);\r
+      return 1;\r
+    }\r
+    if (argc < mandatory) return usage(1);\r
+\r
+    additional = 0;\r
+    if (additional_mandatory) {\r
+      additional = argv[3];\r
+      remainder = 4;\r
+    }\r
+    else additional = argv[remainder];\r
+  }\r
+\r
+  nssm_service_t *service = alloc_nssm_service();\r
+  _sntprintf_s(service->name, _countof(service->name), _TRUNCATE, _T("%s"), service_name);\r
+\r
+  /* Open service manager */\r
+  SC_HANDLE services = open_service_manager();\r
+  if (! services) {\r
+    print_message(stderr, NSSM_MESSAGE_OPEN_SERVICE_MANAGER_FAILED);\r
+    return 2;\r
+  }\r
+\r
+  /* Try to open the service */\r
+  service->handle = open_service(services, service->name, service->name, _countof(service->name));\r
+  if (! service->handle) {\r
+    CloseServiceHandle(services);\r
+    return 3;\r
+  }\r
+\r
+  /* Get system details. */\r
+  QUERY_SERVICE_CONFIG *qsc = query_service_config(service->name, service->handle);\r
+  if (! qsc) {\r
+    CloseHandle(service->handle);\r
+    CloseServiceHandle(services);\r
+    return 4;\r
+  }\r
+\r
+  service->type = qsc->dwServiceType;\r
+  if (! (service->type & SERVICE_WIN32_OWN_PROCESS)) {\r
+    if (mode != MODE_GETTING) {\r
+      HeapFree(GetProcessHeap(), 0, qsc);\r
+      CloseHandle(service->handle);\r
+      CloseServiceHandle(services);\r
+      print_message(stderr, NSSM_MESSAGE_CANNOT_EDIT, service->name, NSSM_WIN32_OWN_PROCESS, 0);\r
+      return 3;\r
+    }\r
+  }\r
+\r
+  if (get_service_startup(service->name, service->handle, qsc, &service->startup)) {\r
+    if (mode != MODE_GETTING) {\r
+      HeapFree(GetProcessHeap(), 0, qsc);\r
+      CloseHandle(service->handle);\r
+      CloseServiceHandle(services);\r
+      return 4;\r
+    }\r
+  }\r
+\r
+  if (get_service_username(service->name, qsc, &service->username, &service->usernamelen)) {\r
+    if (mode != MODE_GETTING) {\r
+      HeapFree(GetProcessHeap(), 0, qsc);\r
+      CloseHandle(service->handle);\r
+      CloseServiceHandle(services);\r
+      return 5;\r
+    }\r
+  }\r
+\r
+  _sntprintf_s(service->displayname, _countof(service->displayname), _TRUNCATE, _T("%s"), qsc->lpDisplayName);\r
+\r
+  /* Get the canonical service name. We open it case insensitively. */\r
+  unsigned long bufsize = _countof(service->name);\r
+  GetServiceKeyName(services, service->displayname, service->name, &bufsize);\r
+\r
+  /* Remember the executable in case it isn't NSSM. */\r
+  _sntprintf_s(service->image, _countof(service->image), _TRUNCATE, _T("%s"), qsc->lpBinaryPathName);\r
+  HeapFree(GetProcessHeap(), 0, qsc);\r
+\r
+  /* Get extended system details. */\r
+  if (get_service_description(service->name, service->handle, _countof(service->description), service->description)) {\r
+    if (mode != MODE_GETTING) {\r
+      CloseHandle(service->handle);\r
+      CloseServiceHandle(services);\r
+      return 6;\r
+    }\r
+  }\r
+\r
+  /* Get NSSM details. */\r
+  get_parameters(service, 0);\r
+\r
+  CloseServiceHandle(services);\r
+\r
+  if (! service->exe[0]) {\r
+    service->native = true;\r
+    if (mode != MODE_GETTING) print_message(stderr, NSSM_MESSAGE_INVALID_SERVICE, service->name, NSSM, service->image);\r
+  }\r
+\r
+  /* Editing with the GUI. */\r
+  if (mode == MODE_EDITING) {\r
+    nssm_gui(IDD_EDIT, service);\r
+    return 0;\r
+  }\r
+\r
+  /* Trying to manage App* parameters for a non-NSSM service. */\r
+  if (! setting->native && service->native) {\r
+    CloseHandle(service->handle);\r
+    print_message(stderr, NSSM_MESSAGE_NATIVE_PARAMETER, setting->name, NSSM);\r
+    return 1;\r
+  }\r
+\r
+  HKEY key;\r
+  value_t value;\r
+  int ret;\r
+\r
+  if (mode == MODE_GETTING) {\r
+    if (! service->native) {\r
+      key = open_registry(service->name, KEY_READ);\r
+      if (! key) return 4;\r
+    }\r
+\r
+    if (setting->native) ret = get_setting(service->name, service->handle, setting, &value, additional);\r
+    else ret = get_setting(service->name, key, setting, &value, additional);\r
+    if (ret < 0) {\r
+      CloseHandle(service->handle);\r
+      return 5;\r
+    }\r
+\r
+    switch (setting->type) {\r
+      case REG_EXPAND_SZ:\r
+      case REG_MULTI_SZ:\r
+      case REG_SZ:\r
+        _tprintf(_T("%s\n"), value.string ? value.string : _T(""));\r
+        HeapFree(GetProcessHeap(), 0, value.string);\r
+        break;\r
+\r
+      case REG_DWORD:\r
+        _tprintf(_T("%u\n"), value.numeric);\r
+        break;\r
+    }\r
+\r
+    if (! service->native) RegCloseKey(key);\r
+    CloseHandle(service->handle);\r
+    return 0;\r
+  }\r
+\r
+  /* Build the value. */\r
+  if (mode == MODE_RESETTING) {\r
+    /* Unset the parameter. */\r
+    value.string = 0;\r
+  }\r
+  else {\r
+    /* Set the parameter. */\r
+    size_t len = 0;\r
+    size_t delimiterlen = (setting->additional & ADDITIONAL_CRLF) ? 2 : 1;\r
+    for (i = remainder; i < argc; i++) len += _tcslen(argv[i]) + delimiterlen;\r
+    len++;\r
 \r
-  return install_service(argv[0], argv[1], flags);\r
+    value.string = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, len * sizeof(TCHAR));\r
+    if (! value.string) {\r
+      print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("value"), _T("edit_service()"));\r
+      CloseHandle(service->handle);\r
+      return 2;\r
+    }\r
+\r
+    size_t s = 0;\r
+    for (i = remainder; i < argc; i++) {\r
+      size_t len = _tcslen(argv[i]);\r
+      memmove(value.string + s, argv[i], len * sizeof(TCHAR));\r
+      s += len;\r
+      if (i < argc - 1) {\r
+        if (setting->additional & ADDITIONAL_CRLF) {\r
+          value.string[s++] = _T('\r');\r
+          value.string[s++] = _T('\n');\r
+        }\r
+        else value.string[s++] = _T(' ');\r
+      }\r
+    }\r
+    value.string[s] = _T('\0');\r
+  }\r
+\r
+  if (! service->native) {\r
+    key = open_registry(service->name, KEY_WRITE);\r
+    if (! key) {\r
+      if (value.string) HeapFree(GetProcessHeap(), 0, value.string);\r
+      return 4;\r
+    }\r
+  }\r
+\r
+  if (setting->native) ret = set_setting(service->name, service->handle, setting, &value, additional);\r
+  else ret = set_setting(service->name, key, setting, &value, additional);\r
+  if (value.string) HeapFree(GetProcessHeap(), 0, value.string);\r
+  if (ret < 0) {\r
+    if (! service->native) RegCloseKey(key);\r
+    CloseHandle(service->handle);\r
+    return 6;\r
+  }\r
+\r
+  if (! service->native) RegCloseKey(key);\r
+  CloseHandle(service->handle);\r
+\r
+  return 0;\r
 }\r
 \r
 /* About to remove the service */\r
-int pre_remove_service(int argc, char **argv) {\r
+int pre_remove_service(int argc, TCHAR **argv) {\r
+  nssm_service_t *service = alloc_nssm_service();\r
+  set_nssm_service_defaults(service);\r
+  if (argc) _sntprintf_s(service->name, _countof(service->name), _TRUNCATE, _T("%s"), argv[0]);\r
+\r
   /* Show dialogue box if we didn't pass service name and "confirm" */\r
-  if (argc < 2) return nssm_gui(IDD_REMOVE, argv[0]);\r
-  if (str_equiv(argv[1], "confirm")) return remove_service(argv[0]);\r
-  fprintf(stderr, "To remove a service without confirmation: nssm remove <servicename> confirm\n");\r
+  if (argc < 2) return nssm_gui(IDD_REMOVE, service);\r
+  if (str_equiv(argv[1], _T("confirm"))) {\r
+    int ret = remove_service(service);\r
+    cleanup_nssm_service(service);\r
+    return ret;\r
+  }\r
+  print_message(stderr, NSSM_MESSAGE_PRE_REMOVE_SERVICE);\r
   return 100;\r
 }\r
 \r
 /* Install the service */\r
-int install_service(char *name, char *exe, char *flags) {\r
+int install_service(nssm_service_t *service) {\r
+  if (! service) return 1;\r
+\r
   /* Open service manager */\r
   SC_HANDLE services = open_service_manager();\r
   if (! services) {\r
-    fprintf(stderr, "Error opening service manager!\n");\r
+    print_message(stderr, NSSM_MESSAGE_OPEN_SERVICE_MANAGER_FAILED);\r
+    cleanup_nssm_service(service);\r
     return 2;\r
   }\r
-  \r
+\r
   /* Get path of this program */\r
-  char path[MAX_PATH];\r
-  GetModuleFileName(0, path, MAX_PATH);\r
-\r
-  /* Construct command */\r
-  char command[CMD_LENGTH];\r
-  size_t runlen = strlen(NSSM_RUN);\r
-  size_t pathlen = strlen(path);\r
-  if (pathlen + runlen + 2 >= VALUE_LENGTH) {\r
-    fprintf(stderr, "The full path to " NSSM " is too long!\n");\r
-    return 3;\r
-  }\r
-  if (snprintf(command, sizeof(command), "\"%s\" %s", path, NSSM_RUN) < 0) {\r
-    fprintf(stderr, "Out of memory for ImagePath!\n");\r
-    return 4;\r
-  }\r
+  GetModuleFileName(0, service->image, _countof(service->image));\r
 \r
-  /* Work out directory name */\r
-  size_t len = strlen(exe);\r
-  size_t i;\r
-  for (i = len; i && exe[i] != '\\' && exe[i] != '/'; i--);\r
-  char dir[MAX_PATH];\r
-  memmove(dir, exe, i);\r
-  dir[i] = '\0';\r
-\r
-  /* Create the service */\r
-  SC_HANDLE service = CreateService(services, name, name, SC_MANAGER_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL, command, 0, 0, 0, 0, 0);\r
-  if (! service) {\r
-    fprintf(stderr, "Error creating service!\n");\r
+  /* Create the service - settings will be changed in edit_service() */\r
+  service->handle = CreateService(services, service->name, service->name, SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL, service->image, 0, 0, 0, 0, 0);\r
+  if (! service->handle) {\r
+    print_message(stderr, NSSM_MESSAGE_CREATESERVICE_FAILED, error_string(GetLastError()));\r
     CloseServiceHandle(services);\r
     return 5;\r
   }\r
 \r
-  /* Now we need to put the parameters into the registry */\r
-  if (create_parameters(name, exe, flags, dir)) {\r
-    fprintf(stderr, "Error setting startup parameters for the service!\n");\r
-    DeleteService(service);\r
+  if (edit_service(service, false)) {\r
+    DeleteService(service->handle);\r
     CloseServiceHandle(services);\r
     return 6;\r
   }\r
 \r
+  print_message(stdout, NSSM_MESSAGE_SERVICE_INSTALLED, service->name);\r
+\r
   /* Cleanup */\r
-  CloseServiceHandle(service);\r
   CloseServiceHandle(services);\r
 \r
-  printf("Service \"%s\" installed successfully!\n", name);\r
   return 0;\r
 }\r
 \r
+/* Edit the service. */\r
+int edit_service(nssm_service_t *service, bool editing) {\r
+  if (! service) return 1;\r
+\r
+  /*\r
+    The only two valid flags for service type are SERVICE_WIN32_OWN_PROCESS\r
+    and SERVICE_INTERACTIVE_PROCESS.\r
+  */\r
+  service->type &= SERVICE_INTERACTIVE_PROCESS;\r
+  service->type |= SERVICE_WIN32_OWN_PROCESS;\r
+\r
+  /* Startup type. */\r
+  unsigned long startup;\r
+  switch (service->startup) {\r
+    case NSSM_STARTUP_MANUAL: startup = SERVICE_DEMAND_START; break;\r
+    case NSSM_STARTUP_DISABLED: startup = SERVICE_DISABLED; break;\r
+    default: startup = SERVICE_AUTO_START;\r
+  }\r
+\r
+  /* Display name. */\r
+  if (! service->displayname[0]) _sntprintf_s(service->displayname, _countof(service->displayname), _TRUNCATE, _T("%s"), service->name);\r
+\r
+  /*\r
+    Username must be NULL if we aren't changing or an account name.\r
+    We must explicitly use LOCALSYSTEM to change it when we are editing.\r
+    Password must be NULL if we aren't changing, a password or "".\r
+    Empty passwords are valid but we won't allow them in the GUI.\r
+  */\r
+  TCHAR *username = 0;\r
+  TCHAR *password = 0;\r
+  if (service->usernamelen) {\r
+    username = service->username;\r
+    if (service->passwordlen) password = service->password;\r
+    else password = _T("");\r
+  }\r
+  else if (editing) username = NSSM_LOCALSYSTEM_ACCOUNT;\r
+\r
+  if (grant_logon_as_service(username)) {\r
+    print_message(stderr, NSSM_MESSAGE_GRANT_LOGON_AS_SERVICE_FAILED, username);\r
+    return 5;\r
+  }\r
+\r
+  if (! ChangeServiceConfig(service->handle, service->type, startup, SERVICE_NO_CHANGE, 0, 0, 0, 0, username, password, service->displayname)) {\r
+    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));\r
+    return 5;\r
+  }\r
+\r
+  if (service->description[0] || editing) {\r
+    set_service_description(service->name, service->handle, service->description);\r
+  }\r
+\r
+  SERVICE_DELAYED_AUTO_START_INFO delayed;\r
+  ZeroMemory(&delayed, sizeof(delayed));\r
+  if (service->startup == NSSM_STARTUP_DELAYED) delayed.fDelayedAutostart = 1;\r
+  else delayed.fDelayedAutostart = 0;\r
+  /* Delayed startup isn't supported until Vista. */\r
+  if (! ChangeServiceConfig2(service->handle, SERVICE_CONFIG_DELAYED_AUTO_START_INFO, &delayed)) {\r
+    unsigned long error = GetLastError();\r
+    /* Pre-Vista we expect to fail with ERROR_INVALID_LEVEL */\r
+    if (error != ERROR_INVALID_LEVEL) {\r
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SERVICE_CONFIG_DELAYED_AUTO_START_INFO_FAILED, service->name, error_string(error), 0);\r
+    }\r
+  }\r
+\r
+  /* Don't mess with parameters which aren't ours. */\r
+  if (! service->native) {\r
+    /* Now we need to put the parameters into the registry */\r
+    if (create_parameters(service, editing)) {\r
+      print_message(stderr, NSSM_MESSAGE_CREATE_PARAMETERS_FAILED);\r
+      return 6;\r
+    }\r
+\r
+    set_service_recovery(service);\r
+  }\r
+\r
+  return 0;\r
+}\r
+\r
+/* Control a service. */\r
+int control_service(unsigned long control, int argc, TCHAR **argv) {\r
+  if (argc < 1) return usage(1);\r
+  TCHAR *service_name = argv[0];\r
+  TCHAR canonical_name[SERVICE_NAME_LENGTH];\r
+\r
+  SC_HANDLE services = open_service_manager();\r
+  if (! services) {\r
+    print_message(stderr, NSSM_MESSAGE_OPEN_SERVICE_MANAGER_FAILED);\r
+    return 2;\r
+  }\r
+\r
+  SC_HANDLE service_handle = open_service(services, service_name, canonical_name, _countof(canonical_name));\r
+  if (! service_handle) {\r
+    CloseServiceHandle(services);\r
+    return 3;\r
+  }\r
+\r
+  int ret;\r
+  unsigned long error;\r
+  SERVICE_STATUS service_status;\r
+  if (control == 0) {\r
+    ret = StartService(service_handle, (unsigned long) argc, (const TCHAR **) argv);\r
+    error = GetLastError();\r
+    CloseHandle(service_handle);\r
+    CloseServiceHandle(services);\r
+\r
+    if (error == ERROR_IO_PENDING) {\r
+      /*\r
+        Older versions of Windows return immediately with ERROR_IO_PENDING\r
+        indicate that the operation is still in progress.  Newer versions\r
+        will return it if there really is a delay.  As far as we're\r
+        concerned the operation is a success.  We don't claim to offer a\r
+        fully-feature service control method; it's just a quick 'n' dirty\r
+        interface.\r
+\r
+        In the future we may identify and handle this situation properly.\r
+      */\r
+      ret = 1;\r
+      error = ERROR_SUCCESS;\r
+    }\r
+\r
+    if (ret) {\r
+      _tprintf(_T("%s: %s"), canonical_name, error_string(error));\r
+      return 0;\r
+    }\r
+    else {\r
+      _ftprintf(stderr, _T("%s: %s"), canonical_name, error_string(error));\r
+      return 1;\r
+    }\r
+  }\r
+  else if (control == SERVICE_CONTROL_INTERROGATE) {\r
+    /*\r
+      We could actually send an INTERROGATE control but that won't return\r
+      any information if the service is stopped and we don't care about\r
+      the extra details it might give us in any case.  So we'll fake it.\r
+    */\r
+    ret = QueryServiceStatus(service_handle, &service_status);\r
+    error = GetLastError();\r
+\r
+    if (ret) {\r
+      switch (service_status.dwCurrentState) {\r
+        case SERVICE_STOPPED: _tprintf(_T("SERVICE_STOPPED\n")); break;\r
+        case SERVICE_START_PENDING: _tprintf(_T("SERVICE_START_PENDING\n")); break;\r
+        case SERVICE_STOP_PENDING: _tprintf(_T("SERVICE_STOP_PENDING\n")); break;\r
+        case SERVICE_RUNNING: _tprintf(_T("SERVICE_RUNNING\n")); break;\r
+        case SERVICE_CONTINUE_PENDING: _tprintf(_T("SERVICE_CONTINUE_PENDING\n")); break;\r
+        case SERVICE_PAUSE_PENDING: _tprintf(_T("SERVICE_PAUSE_PENDING\n")); break;\r
+        case SERVICE_PAUSED: _tprintf(_T("SERVICE_PAUSED\n")); break;\r
+        default: _tprintf(_T("?\n")); return 1;\r
+      }\r
+      return 0;\r
+    }\r
+    else {\r
+      _ftprintf(stderr, _T("%s: %s\n"), canonical_name, error_string(error));\r
+      return 1;\r
+    }\r
+  }\r
+  else {\r
+    ret = ControlService(service_handle, control, &service_status);\r
+    error = GetLastError();\r
+    CloseHandle(service_handle);\r
+    CloseServiceHandle(services);\r
+\r
+    if (error == ERROR_IO_PENDING) {\r
+      ret = 1;\r
+      error = ERROR_SUCCESS;\r
+    }\r
+\r
+    if (ret) {\r
+      _tprintf(_T("%s: %s"), canonical_name, error_string(error));\r
+      return 0;\r
+    }\r
+    else {\r
+      _ftprintf(stderr, _T("%s: %s"), canonical_name, error_string(error));\r
+      return 1;\r
+    }\r
+  }\r
+}\r
+\r
 /* Remove the service */\r
-int remove_service(char *name) {\r
+int remove_service(nssm_service_t *service) {\r
+  if (! service) return 1;\r
+\r
   /* Open service manager */\r
   SC_HANDLE services = open_service_manager();\r
   if (! services) {\r
-    fprintf(stderr, "Error opening service manager!\n");\r
+    print_message(stderr, NSSM_MESSAGE_OPEN_SERVICE_MANAGER_FAILED);\r
     return 2;\r
   }\r
-  \r
+\r
   /* Try to open the service */\r
-  SC_HANDLE service = OpenService(services, name, SC_MANAGER_ALL_ACCESS);\r
-  if (! service) {\r
-    fprintf(stderr, "Can't open service!");\r
+  service->handle = open_service(services, service->name, service->name, _countof(service->name));\r
+  if (! service->handle) {\r
     CloseServiceHandle(services);\r
     return 3;\r
   }\r
 \r
+  /* Get the canonical service name. We open it case insensitively. */\r
+  unsigned long bufsize = _countof(service->displayname);\r
+  GetServiceDisplayName(services, service->name, service->displayname, &bufsize);\r
+  bufsize = _countof(service->name);\r
+  GetServiceKeyName(services, service->displayname, service->name, &bufsize);\r
+\r
   /* Try to delete the service */\r
-  if (! DeleteService(service)) {\r
-    fprintf(stderr, "Error deleting service!\n");\r
-    CloseServiceHandle(service);\r
+  if (! DeleteService(service->handle)) {\r
+    print_message(stderr, NSSM_MESSAGE_DELETESERVICE_FAILED);\r
     CloseServiceHandle(services);\r
     return 4;\r
   }\r
 \r
   /* Cleanup */\r
-  CloseServiceHandle(service);\r
   CloseServiceHandle(services);\r
 \r
-  printf("Service \"%s\" removed successfully!\n", name);\r
+  print_message(stdout, NSSM_MESSAGE_SERVICE_REMOVED, service->name);\r
   return 0;\r
 }\r
 \r
 /* Service initialisation */\r
-void WINAPI service_main(unsigned long argc, char **argv) {\r
-  if (_snprintf(service_name, sizeof(service_name), "%s", argv[0]) < 0) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "service_name", "service_main()", 0);\r
+void WINAPI service_main(unsigned long argc, TCHAR **argv) {\r
+  nssm_service_t *service = alloc_nssm_service();\r
+  if (! service) return;\r
+\r
+  if (_sntprintf_s(service->name, _countof(service->name), _TRUNCATE, _T("%s"), argv[0]) < 0) {\r
+    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("service->name"), _T("service_main()"), 0);\r
     return;\r
   }\r
 \r
+  /* We can use a condition variable in a critical section on Vista or later. */\r
+  if (imports.SleepConditionVariableCS && imports.WakeConditionVariable) use_critical_section = true;\r
+  else use_critical_section = false;\r
+\r
   /* Initialise status */\r
-  ZeroMemory(&service_status, sizeof(service_status));\r
-  service_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS | SERVICE_INTERACTIVE_PROCESS;\r
-  service_status.dwCurrentState = SERVICE_RUNNING;\r
-  service_status.dwControlsAccepted = SERVICE_ACCEPT_SHUTDOWN | SERVICE_ACCEPT_STOP;\r
-  service_status.dwWin32ExitCode = NO_ERROR;\r
-  service_status.dwServiceSpecificExitCode = 0;\r
-  service_status.dwCheckPoint = 0;\r
-  service_status.dwWaitHint = 1000;\r
+  ZeroMemory(&service->status, sizeof(service->status));\r
+  service->status.dwServiceType = SERVICE_WIN32_OWN_PROCESS | SERVICE_INTERACTIVE_PROCESS;\r
+  service->status.dwControlsAccepted = SERVICE_ACCEPT_SHUTDOWN | SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE;\r
+  service->status.dwWin32ExitCode = NO_ERROR;\r
+  service->status.dwServiceSpecificExitCode = 0;\r
+  service->status.dwCheckPoint = 0;\r
+  service->status.dwWaitHint = NSSM_WAITHINT_MARGIN;\r
 \r
   /* Signal we AREN'T running the server */\r
-  pid = 0;\r
+  service->process_handle = 0;\r
+  service->pid = 0;\r
 \r
-  /* Get startup parameters */\r
-  int ret = get_parameters(argv[0], exe, sizeof(exe), flags, sizeof(flags), dir, sizeof(dir));\r
-  if (ret) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_PARAMETERS_FAILED, argv[0], 0);\r
+  /* Register control handler */\r
+  service->status_handle = RegisterServiceCtrlHandlerEx(NSSM, service_control_handler, (void *) service);\r
+  if (! service->status_handle) {\r
+    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_REGISTERSERVICECTRLHANDER_FAILED, error_string(GetLastError()), 0);\r
     return;\r
   }\r
 \r
-  /* Register control handler */\r
-  service_handle = RegisterServiceCtrlHandlerEx(NSSM, service_control_handler, 0);\r
-  if (! service_handle) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_REGISTERSERVICECTRLHANDER_FAILED, GetLastError(), 0);\r
-    return;\r
+  log_service_control(service->name, 0, true);\r
+\r
+  service->status.dwCurrentState = SERVICE_START_PENDING;\r
+  service->status.dwWaitHint = service->throttle_delay + NSSM_WAITHINT_MARGIN;\r
+  SetServiceStatus(service->status_handle, &service->status);\r
+\r
+  if (is_admin) {\r
+    /* Try to create the exit action parameters; we don't care if it fails */\r
+    create_exit_action(service->name, exit_action_strings[0], false);\r
+\r
+    SC_HANDLE services = open_service_manager();\r
+    if (services) {\r
+      service->handle = OpenService(services, service->name, SC_MANAGER_ALL_ACCESS);\r
+      set_service_recovery(service);\r
+      CloseServiceHandle(services);\r
+    }\r
+  }\r
+\r
+  /* Used for signalling a resume if the service pauses when throttled. */\r
+  if (use_critical_section) {\r
+    InitializeCriticalSection(&service->throttle_section);\r
+    service->throttle_section_initialised = true;\r
+  }\r
+  else {\r
+    service->throttle_timer = CreateWaitableTimer(0, 1, 0);\r
+    if (! service->throttle_timer) {\r
+      log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_CREATEWAITABLETIMER_FAILED, service->name, error_string(GetLastError()), 0);\r
+    }\r
   }\r
 \r
-  /* Try to create the exit action parameters; we don't care if it fails */\r
-  create_exit_action(argv[0], exit_action_strings[0]);\r
+  monitor_service(service);\r
+}\r
+\r
+/* Make sure service recovery actions are taken where necessary */\r
+void set_service_recovery(nssm_service_t *service) {\r
+  SERVICE_FAILURE_ACTIONS_FLAG flag;\r
+  ZeroMemory(&flag, sizeof(flag));\r
+  flag.fFailureActionsOnNonCrashFailures = true;\r
 \r
-  monitor_service();\r
+  /* This functionality was added in Vista so the call may fail */\r
+  if (! ChangeServiceConfig2(service->handle, SERVICE_CONFIG_FAILURE_ACTIONS_FLAG, &flag)) {\r
+    unsigned long error = GetLastError();\r
+    /* Pre-Vista we expect to fail with ERROR_INVALID_LEVEL */\r
+    if (error != ERROR_INVALID_LEVEL) {\r
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SERVICE_CONFIG_FAILURE_ACTIONS_FAILED, service->name, error_string(error), 0);\r
+    }\r
+  }\r
 }\r
 \r
-int monitor_service() {\r
+int monitor_service(nssm_service_t *service) {\r
   /* Set service status to started */\r
-  int ret = start_service();\r
+  int ret = start_service(service);\r
   if (ret) {\r
-    char code[16];\r
-    snprintf(code, sizeof(code), "%d", ret);\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_START_SERVICE_FAILED, exe, service_name, ret, 0);\r
+    TCHAR code[16];\r
+    _sntprintf_s(code, _countof(code), _TRUNCATE, _T("%d"), ret);\r
+    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_START_SERVICE_FAILED, service->exe, service->name, ret, 0);\r
     return ret;\r
   }\r
-  log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_STARTED_SERVICE, exe, flags, service_name, dir, 0);\r
+  log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_STARTED_SERVICE, service->exe, service->flags, service->name, service->dir, 0);\r
 \r
-  /* Monitor service service */\r
-  if (! RegisterWaitForSingleObject(&wait_handle, pid, end_service, 0, INFINITE, WT_EXECUTEONLYONCE | WT_EXECUTELONGFUNCTION)) {\r
-    log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_REGISTERWAITFORSINGLEOBJECT_FAILED, service_name, exe, GetLastError(), 0);\r
+  /* Monitor service */\r
+  if (! RegisterWaitForSingleObject(&service->wait_handle, service->process_handle, end_service, (void *) service, INFINITE, WT_EXECUTEONLYONCE | WT_EXECUTELONGFUNCTION)) {\r
+    log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_REGISTERWAITFORSINGLEOBJECT_FAILED, service->name, service->exe, error_string(GetLastError()), 0);\r
   }\r
 \r
   return 0;\r
 }\r
 \r
+TCHAR *service_control_text(unsigned long control) {\r
+  switch (control) {\r
+    /* HACK: there is no SERVICE_CONTROL_START constant */\r
+    case 0: return _T("START");\r
+    case SERVICE_CONTROL_STOP: return _T("STOP");\r
+    case SERVICE_CONTROL_SHUTDOWN: return _T("SHUTDOWN");\r
+    case SERVICE_CONTROL_PAUSE: return _T("PAUSE");\r
+    case SERVICE_CONTROL_CONTINUE: return _T("CONTINUE");\r
+    case SERVICE_CONTROL_INTERROGATE: return _T("INTERROGATE");\r
+    default: return 0;\r
+  }\r
+}\r
+\r
+void log_service_control(TCHAR *service_name, unsigned long control, bool handled) {\r
+  TCHAR *text = service_control_text(control);\r
+  unsigned long event;\r
+\r
+  if (! text) {\r
+    /* "0x" + 8 x hex + NULL */\r
+    text = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, 11 * sizeof(TCHAR));\r
+    if (! text) {\r
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("control code"), _T("log_service_control()"), 0);\r
+      return;\r
+    }\r
+    if (_sntprintf_s(text, 11, _TRUNCATE, _T("0x%08x"), control) < 0) {\r
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("control code"), _T("log_service_control()"), 0);\r
+      HeapFree(GetProcessHeap(), 0, text);\r
+      return;\r
+    }\r
+\r
+    event = NSSM_EVENT_SERVICE_CONTROL_UNKNOWN;\r
+  }\r
+  else if (handled) event = NSSM_EVENT_SERVICE_CONTROL_HANDLED;\r
+  else event = NSSM_EVENT_SERVICE_CONTROL_NOT_HANDLED;\r
+\r
+  log_event(EVENTLOG_INFORMATION_TYPE, event, service_name, text, 0);\r
+\r
+  if (event == NSSM_EVENT_SERVICE_CONTROL_UNKNOWN) {\r
+    HeapFree(GetProcessHeap(), 0, text);\r
+  }\r
+}\r
+\r
 /* Service control handler */\r
 unsigned long WINAPI service_control_handler(unsigned long control, unsigned long event, void *data, void *context) {\r
+  nssm_service_t *service = (nssm_service_t *) context;\r
+\r
   switch (control) {\r
+    case SERVICE_CONTROL_INTERROGATE:\r
+      /* We always keep the service status up-to-date so this is a no-op. */\r
+      return NO_ERROR;\r
+\r
     case SERVICE_CONTROL_SHUTDOWN:\r
     case SERVICE_CONTROL_STOP:\r
-      stop_service(0);\r
+      log_service_control(service->name, control, true);\r
+      /*\r
+        We MUST acknowledge the stop request promptly but we're committed to\r
+        waiting for the application to exit.  Spawn a new thread to wait\r
+        while we acknowledge the request.\r
+      */\r
+      if (! CreateThread(NULL, 0, shutdown_service, context, 0, NULL)) {\r
+        log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATETHREAD_FAILED, error_string(GetLastError()), 0);\r
+\r
+        /*\r
+          We couldn't create a thread to tidy up so we'll have to force the tidyup\r
+          to complete in time in this thread.\r
+        */\r
+        service->kill_console_delay = NSSM_KILL_CONSOLE_GRACE_PERIOD;\r
+        service->kill_window_delay = NSSM_KILL_WINDOW_GRACE_PERIOD;\r
+        service->kill_threads_delay = NSSM_KILL_THREADS_GRACE_PERIOD;\r
+\r
+        stop_service(service, 0, true, true);\r
+      }\r
       return NO_ERROR;\r
+\r
+    case SERVICE_CONTROL_CONTINUE:\r
+      log_service_control(service->name, control, true);\r
+      service->throttle = 0;\r
+      if (use_critical_section) imports.WakeConditionVariable(&service->throttle_condition);\r
+      else {\r
+        if (! service->throttle_timer) return ERROR_CALL_NOT_IMPLEMENTED;\r
+        ZeroMemory(&service->throttle_duetime, sizeof(service->throttle_duetime));\r
+        SetWaitableTimer(service->throttle_timer, &service->throttle_duetime, 0, 0, 0, 0);\r
+      }\r
+      service->status.dwCurrentState = SERVICE_CONTINUE_PENDING;\r
+      service->status.dwWaitHint = throttle_milliseconds(service->throttle) + NSSM_WAITHINT_MARGIN;\r
+      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_RESET_THROTTLE, service->name, 0);\r
+      SetServiceStatus(service->status_handle, &service->status);\r
+      return NO_ERROR;\r
+\r
+    case SERVICE_CONTROL_PAUSE:\r
+      /*\r
+        We don't accept pause messages but it isn't possible to register\r
+        only for continue messages so we have to handle this case.\r
+      */\r
+      log_service_control(service->name, control, false);\r
+      return ERROR_CALL_NOT_IMPLEMENTED;\r
   }\r
 \r
   /* Unknown control */\r
+  log_service_control(service->name, control, false);\r
   return ERROR_CALL_NOT_IMPLEMENTED;\r
 }\r
 \r
 /* Start the service */\r
-int start_service() {\r
-  if (pid) return 0;\r
+int start_service(nssm_service_t *service) {\r
+  service->stopping = false;\r
+  service->allow_restart = true;\r
+\r
+  if (service->process_handle) return 0;\r
 \r
   /* Allocate a STARTUPINFO structure for a new process */\r
   STARTUPINFO si;\r
@@ -221,98 +1268,329 @@ int start_service() {
   PROCESS_INFORMATION pi;\r
   ZeroMemory(&pi, sizeof(pi));\r
 \r
+  /* Get startup parameters */\r
+  int ret = get_parameters(service, &si);\r
+  if (ret) {\r
+    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_PARAMETERS_FAILED, service->name, 0);\r
+    return stop_service(service, 2, true, true);\r
+  }\r
+\r
   /* Launch executable with arguments */\r
-  char cmd[CMD_LENGTH];\r
-  if (_snprintf(cmd, sizeof(cmd), "%s %s", exe, flags) < 0) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "command line", "start_service", 0);\r
-    return stop_service(2);\r
+  TCHAR cmd[CMD_LENGTH];\r
+  if (_sntprintf_s(cmd, _countof(cmd), _TRUNCATE, _T("\"%s\" %s"), service->exe, service->flags) < 0) {\r
+    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("command line"), _T("start_service"), 0);\r
+    close_output_handles(&si);\r
+    return stop_service(service, 2, true, true);\r
   }\r
-  if (! CreateProcess(0, cmd, 0, 0, 0, 0, 0, dir, &si, &pi)) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPROCESS_FAILED, service_name, exe, GetLastError(), 0);\r
-    return stop_service(3);\r
+\r
+  throttle_restart(service);\r
+\r
+  bool inherit_handles = false;\r
+  if (si.dwFlags & STARTF_USESTDHANDLES) inherit_handles = true;\r
+  unsigned long flags = service->priority & priority_mask();\r
+#ifdef UNICODE\r
+  flags |= CREATE_UNICODE_ENVIRONMENT;\r
+#endif\r
+  if (! CreateProcess(0, cmd, 0, 0, inherit_handles, flags, service->env, service->dir, &si, &pi)) {\r
+    unsigned long exitcode = 3;\r
+    unsigned long error = GetLastError();\r
+    if (error == ERROR_INVALID_PARAMETER && service->env) {\r
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPROCESS_FAILED_INVALID_ENVIRONMENT, service->name, service->exe, NSSM_REG_ENV, 0);\r
+      if (test_environment(service->env)) exitcode = 4;\r
+    }\r
+    else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPROCESS_FAILED, service->name, service->exe, error_string(error), 0);\r
+    close_output_handles(&si);\r
+    return stop_service(service, exitcode, true, true);\r
   }\r
-  pid = pi.hProcess;\r
+  service->process_handle = pi.hProcess;\r
+  service->pid = pi.dwProcessId;\r
+\r
+  if (get_process_creation_time(service->process_handle, &service->creation_time)) ZeroMemory(&service->creation_time, sizeof(service->creation_time));\r
+\r
+  close_output_handles(&si);\r
+\r
+  /*\r
+    Wait for a clean startup before changing the service status to RUNNING\r
+    but be mindful of the fact that we are blocking the service control manager\r
+    so abandon the wait before too much time has elapsed.\r
+  */\r
+  unsigned long delay = service->throttle_delay;\r
+  if (delay > NSSM_SERVICE_STATUS_DEADLINE) {\r
+    TCHAR delay_milliseconds[16];\r
+    _sntprintf_s(delay_milliseconds, _countof(delay_milliseconds), _TRUNCATE, _T("%lu"), delay);\r
+    TCHAR deadline_milliseconds[16];\r
+    _sntprintf_s(deadline_milliseconds, _countof(deadline_milliseconds), _TRUNCATE, _T("%lu"), NSSM_SERVICE_STATUS_DEADLINE);\r
+    log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_STARTUP_DELAY_TOO_LONG, service->name, delay_milliseconds, NSSM, deadline_milliseconds, 0);\r
+    delay = NSSM_SERVICE_STATUS_DEADLINE;\r
+  }\r
+  unsigned long deadline = WaitForSingleObject(service->process_handle, delay);\r
 \r
   /* Signal successful start */\r
-  service_status.dwCurrentState = SERVICE_RUNNING;\r
-  SetServiceStatus(service_handle, &service_status);\r
+  service->status.dwCurrentState = SERVICE_RUNNING;\r
+  SetServiceStatus(service->status_handle, &service->status);\r
+\r
+  /* Continue waiting for a clean startup. */\r
+  if (deadline == WAIT_TIMEOUT) {\r
+    if (service->throttle_delay > delay) {\r
+      if (WaitForSingleObject(service->process_handle, service->throttle_delay - delay) == WAIT_TIMEOUT) service->throttle = 0;\r
+    }\r
+    else service->throttle = 0;\r
+  }\r
 \r
   return 0;\r
 }\r
 \r
 /* Stop the service */\r
-int stop_service(unsigned long exitcode) {\r
+int stop_service(nssm_service_t *service, unsigned long exitcode, bool graceful, bool default_action) {\r
+  service->allow_restart = false;\r
+  if (service->wait_handle) {\r
+    UnregisterWait(service->wait_handle);\r
+    service->wait_handle = 0;\r
+  }\r
+\r
+  if (default_action && ! exitcode && ! graceful) {\r
+    log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_GRACEFUL_SUICIDE, service->name, service->exe, exit_action_strings[NSSM_EXIT_UNCLEAN], exit_action_strings[NSSM_EXIT_UNCLEAN], exit_action_strings[NSSM_EXIT_UNCLEAN], exit_action_strings[NSSM_EXIT_REALLY], 0);\r
+    graceful = true;\r
+  }\r
+\r
   /* Signal we are stopping */\r
-  service_status.dwCurrentState = SERVICE_STOP_PENDING;\r
-  SetServiceStatus(service_handle, &service_status);\r
+  if (graceful) {\r
+    service->status.dwCurrentState = SERVICE_STOP_PENDING;\r
+    service->status.dwWaitHint = NSSM_WAITHINT_MARGIN;\r
+    SetServiceStatus(service->status_handle, &service->status);\r
+  }\r
 \r
-  /* Nothing to do if server isn't running */\r
-  if (pid) {\r
-    /* Shut down server */\r
-    log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_TERMINATEPROCESS, service_name, exe, 0);\r
-    TerminateProcess(pid, 0);\r
-    pid = 0;\r
+  /* Nothing to do if service isn't running */\r
+  if (service->pid) {\r
+    /* Shut down service */\r
+    log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_TERMINATEPROCESS, service->name, service->exe, 0);\r
+    kill_process(service, service->process_handle, service->pid, 0);\r
   }\r
-  else log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_PROCESS_ALREADY_STOPPED, service_name, exe, 0);\r
+  else log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_PROCESS_ALREADY_STOPPED, service->name, service->exe, 0);\r
+\r
+  end_service((void *) service, true);\r
 \r
   /* Signal we stopped */\r
-  service_status.dwCurrentState = SERVICE_STOPPED;\r
-  if (exitcode) {\r
-    service_status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;\r
-    service_status.dwServiceSpecificExitCode = exitcode;\r
-  }\r
-  else {\r
-    service_status.dwWin32ExitCode = NO_ERROR;\r
-    service_status.dwServiceSpecificExitCode = 0;\r
+  if (graceful) {\r
+    service->status.dwCurrentState = SERVICE_STOPPED;\r
+    if (exitcode) {\r
+      service->status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;\r
+      service->status.dwServiceSpecificExitCode = exitcode;\r
+    }\r
+    else {\r
+      service->status.dwWin32ExitCode = NO_ERROR;\r
+      service->status.dwServiceSpecificExitCode = 0;\r
+    }\r
+    SetServiceStatus(service->status_handle, &service->status);\r
   }\r
-  SetServiceStatus(service_handle, &service_status);\r
 \r
   return exitcode;\r
 }\r
 \r
 /* Callback function triggered when the server exits */\r
 void CALLBACK end_service(void *arg, unsigned char why) {\r
+  nssm_service_t *service = (nssm_service_t *) arg;\r
+\r
+  if (service->stopping) return;\r
+\r
+  service->stopping = true;\r
+\r
   /* Check exit code */\r
-  unsigned long ret = 0;\r
-  GetExitCodeProcess(pid, &ret);\r
+  unsigned long exitcode = 0;\r
+  TCHAR code[16];\r
+  if (service->process_handle) {\r
+    GetExitCodeProcess(service->process_handle, &exitcode);\r
+    if (exitcode == STILL_ACTIVE || get_process_exit_time(service->process_handle, &service->exit_time)) GetSystemTimeAsFileTime(&service->exit_time);\r
+    CloseHandle(service->process_handle);\r
+  }\r
+  else GetSystemTimeAsFileTime(&service->exit_time);\r
 \r
-  char code[16];\r
-  _snprintf(code, sizeof(code), "%d", ret);\r
-  log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_ENDED_SERVICE, exe, service_name, code, 0);\r
+  service->process_handle = 0;\r
+\r
+  /*\r
+    Log that the service ended BEFORE logging about killing the process\r
+    tree.  See below for the possible values of the why argument.\r
+  */\r
+  if (! why) {\r
+    _sntprintf_s(code, _countof(code), _TRUNCATE, _T("%lu"), exitcode);\r
+    log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_ENDED_SERVICE, service->exe, service->name, code, 0);\r
+  }\r
+\r
+  /* Clean up. */\r
+  if (exitcode == STILL_ACTIVE) exitcode = 0;\r
+  if (service->pid) kill_process_tree(service, service->pid, exitcode, service->pid);\r
+  service->pid = 0;\r
+\r
+  /*\r
+    The why argument is true if our wait timed out or false otherwise.\r
+    Our wait is infinite so why will never be true when called by the system.\r
+    If it is indeed true, assume we were called from stop_service() because\r
+    this is a controlled shutdown, and don't take any restart action.\r
+  */\r
+  if (why) return;\r
+  if (! service->allow_restart) return;\r
 \r
   /* What action should we take? */\r
   int action = NSSM_EXIT_RESTART;\r
-  unsigned char action_string[ACTION_LEN];\r
-  if (! get_exit_action(service_name, &ret, action_string)) {\r
+  TCHAR action_string[ACTION_LEN];\r
+  bool default_action;\r
+  if (! get_exit_action(service->name, &exitcode, action_string, &default_action)) {\r
     for (int i = 0; exit_action_strings[i]; i++) {\r
-      if (! _strnicmp((const char *) action_string, exit_action_strings[i], ACTION_LEN)) {\r
+      if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {\r
         action = i;\r
         break;\r
       }\r
     }\r
   }\r
 \r
-  pid = 0;\r
   switch (action) {\r
     /* Try to restart the service or return failure code to service manager */\r
     case NSSM_EXIT_RESTART:\r
-      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_RESTART, service_name, code, exit_action_strings[action], exe, 0);\r
-      while (monitor_service()) {\r
-        log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_RESTART_SERVICE_FAILED, exe, service_name, 0);\r
+      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_RESTART, service->name, code, exit_action_strings[action], service->exe, 0);\r
+      while (monitor_service(service)) {\r
+        log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_RESTART_SERVICE_FAILED, service->exe, service->name, 0);\r
         Sleep(30000);\r
       }\r
     break;\r
 \r
     /* Do nothing, just like srvany would */\r
     case NSSM_EXIT_IGNORE:\r
-      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_IGNORE, service_name, code, exit_action_strings[action], exe, 0);\r
+      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_IGNORE, service->name, code, exit_action_strings[action], service->exe, 0);\r
       Sleep(INFINITE);\r
     break;\r
 \r
     /* Tell the service manager we are finished */\r
     case NSSM_EXIT_REALLY:\r
-      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_REALLY, service_name, code, exit_action_strings[action], 0);\r
-      stop_service(ret);\r
+      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_REALLY, service->name, code, exit_action_strings[action], 0);\r
+      stop_service(service, exitcode, true, default_action);\r
     break;\r
+\r
+    /* Fake a crash so pre-Vista service managers will run recovery actions. */\r
+    case NSSM_EXIT_UNCLEAN:\r
+      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_EXIT_UNCLEAN, service->name, code, exit_action_strings[action], 0);\r
+      stop_service(service, exitcode, false, default_action);\r
+      free_imports();\r
+      exit(exitcode);\r
+    break;\r
+  }\r
+}\r
+\r
+void throttle_restart(nssm_service_t *service) {\r
+  /* This can't be a restart if the service is already running. */\r
+  if (! service->throttle++) return;\r
+\r
+  int ms = throttle_milliseconds(service->throttle);\r
+\r
+  if (service->throttle > 7) service->throttle = 8;\r
+\r
+  TCHAR threshold[8], milliseconds[8];\r
+  _sntprintf_s(threshold, _countof(threshold), _TRUNCATE, _T("%lu"), service->throttle_delay);\r
+  _sntprintf_s(milliseconds, _countof(milliseconds), _TRUNCATE, _T("%lu"), ms);\r
+  log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_THROTTLED, service->name, threshold, milliseconds, 0);\r
+\r
+  if (use_critical_section) EnterCriticalSection(&service->throttle_section);\r
+  else if (service->throttle_timer) {\r
+    ZeroMemory(&service->throttle_duetime, sizeof(service->throttle_duetime));\r
+    service->throttle_duetime.QuadPart = 0 - (ms * 10000LL);\r
+    SetWaitableTimer(service->throttle_timer, &service->throttle_duetime, 0, 0, 0, 0);\r
+  }\r
+\r
+  service->status.dwCurrentState = SERVICE_PAUSED;\r
+  SetServiceStatus(service->status_handle, &service->status);\r
+\r
+  if (use_critical_section) {\r
+    imports.SleepConditionVariableCS(&service->throttle_condition, &service->throttle_section, ms);\r
+    LeaveCriticalSection(&service->throttle_section);\r
+  }\r
+  else {\r
+    if (service->throttle_timer) WaitForSingleObject(service->throttle_timer, INFINITE);\r
+    else Sleep(ms);\r
+  }\r
+}\r
+\r
+/*\r
+  When responding to a stop (or any other) request we need to set dwWaitHint to\r
+  the number of milliseconds we expect the operation to take, and optionally\r
+  increase dwCheckPoint.  If dwWaitHint milliseconds elapses without the\r
+  operation completing or dwCheckPoint increasing, the system will consider the\r
+  service to be hung.\r
+\r
+  However the system will consider the service to be hung after 30000\r
+  milliseconds regardless of the value of dwWaitHint if dwCheckPoint has not\r
+  changed.  Therefore if we want to wait longer than that we must periodically\r
+  increase dwCheckPoint.\r
+\r
+  Furthermore, it will consider the service to be hung after 60000 milliseconds\r
+  regardless of the value of dwCheckPoint unless dwWaitHint is increased every\r
+  time dwCheckPoint is also increased.\r
+\r
+  Our strategy then is to retrieve the initial dwWaitHint and wait for\r
+  NSSM_SERVICE_STATUS_DEADLINE milliseconds.  If the process is still running\r
+  and we haven't finished waiting we increment dwCheckPoint and add whichever is\r
+  smaller of NSSM_SERVICE_STATUS_DEADLINE or the remaining timeout to\r
+  dwWaitHint.\r
+\r
+  Only doing both these things will prevent the system from killing the service.\r
+\r
+  Returns: 1 if the wait timed out.\r
+           0 if the wait completed.\r
+          -1 on error.\r
+*/\r
+int await_shutdown(nssm_service_t *service, TCHAR *function_name, unsigned long timeout) {\r
+  unsigned long interval;\r
+  unsigned long waithint;\r
+  unsigned long ret;\r
+  unsigned long waited;\r
+  TCHAR interval_milliseconds[16];\r
+  TCHAR timeout_milliseconds[16];\r
+  TCHAR waited_milliseconds[16];\r
+  TCHAR *function = function_name;\r
+\r
+  /* Add brackets to function name. */\r
+  size_t funclen = _tcslen(function_name) + 3;\r
+  TCHAR *func = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, funclen * sizeof(TCHAR));\r
+  if (func) {\r
+    if (_sntprintf_s(func, funclen, _TRUNCATE, _T("%s()"), function_name) > -1) function = func;\r
   }\r
+\r
+  _sntprintf_s(timeout_milliseconds, _countof(timeout_milliseconds), _TRUNCATE, _T("%lu"), timeout);\r
+\r
+  waithint = service->status.dwWaitHint;\r
+  waited = 0;\r
+  while (waited < timeout) {\r
+    interval = timeout - waited;\r
+    if (interval > NSSM_SERVICE_STATUS_DEADLINE) interval = NSSM_SERVICE_STATUS_DEADLINE;\r
+\r
+    service->status.dwCurrentState = SERVICE_STOP_PENDING;\r
+    service->status.dwWaitHint += interval;\r
+    service->status.dwCheckPoint++;\r
+    SetServiceStatus(service->status_handle, &service->status);\r
+\r
+    if (waited) {\r
+      _sntprintf_s(waited_milliseconds, _countof(waited_milliseconds), _TRUNCATE, _T("%lu"), waited);\r
+      _sntprintf_s(interval_milliseconds, _countof(interval_milliseconds), _TRUNCATE, _T("%lu"), interval);\r
+      log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_AWAITING_SHUTDOWN, function, service->name, waited_milliseconds, interval_milliseconds, timeout_milliseconds, 0);\r
+    }\r
+\r
+    switch (WaitForSingleObject(service->process_handle, interval)) {\r
+      case WAIT_OBJECT_0:\r
+        ret = 0;\r
+        goto awaited;\r
+\r
+      case WAIT_TIMEOUT:\r
+        ret = 1;\r
+      break;\r
+\r
+      default:\r
+        ret = -1;\r
+        goto awaited;\r
+    }\r
+\r
+    waited += interval;\r
+  }\r
+\r
+awaited:\r
+  if (func) HeapFree(GetProcessHeap(), 0, func);\r
+\r
+  return ret;\r
 }\r