Added open_registry() function.

Moved RegOpenKeyEx() and RegCreateKeyEx() to a separate function
open_registry().

diff --git a/registry.cpp b/registry.cpp
index d226b83..766f73b 100644 (file)
--- a/registry.cpp
+++ b/registry.cpp
@@ -29,35 +29,25 @@ int create_messages() {
 }\r
 \r
 int create_parameters(nssm_service_t *service, bool editing) {\r
-  /* Get registry */\r
-  TCHAR registry[KEY_LENGTH];\r
-  if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY, service->name) < 0) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REGISTRY"), _T("create_parameters()"), 0);\r
-    return 1;\r
-  }\r
-\r
   /* Try to open the registry */\r
-  HKEY key;\r
-  if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, 0) != ERROR_SUCCESS) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);\r
-    return 2;\r
-  }\r
+  HKEY key = open_registry(service->name, KEY_WRITE);\r
+  if (! key) return 1;\r
 \r
   /* Try to create the parameters */\r
   if (set_expand_string(key, NSSM_REG_EXE, service->exe)) {\r
     RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);\r
     RegCloseKey(key);\r
-    return 3;\r
+    return 2;\r
   }\r
   if (set_expand_string(key, NSSM_REG_FLAGS, service->flags)) {\r
     RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);\r
     RegCloseKey(key);\r
-    return 4;\r
+    return 3;\r
   }\r
   if (set_expand_string(key, NSSM_REG_DIR, service->dir)) {\r
     RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);\r
     RegCloseKey(key);\r
-    return 5;\r
+    return 4;\r
   }\r
 \r
   /* Other non-default parameters. May fail. */\r
@@ -334,22 +324,45 @@ void override_milliseconds(TCHAR *service_name, HKEY key, TCHAR *value, unsigned
   if (! ok) *buffer = default_value;\r
 }\r
 \r
-int get_parameters(nssm_service_t *service, STARTUPINFO *si) {\r
-  unsigned long ret;\r
-\r
+HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam) {\r
   /* Get registry */\r
   TCHAR registry[KEY_LENGTH];\r
-  if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY, service->name) < 0) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REGISTRY"), _T("get_parameters()"), 0);\r
-    return 1;\r
+  HKEY key;\r
+  int ret;\r
+\r
+  if (sub) ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, sub);\r
+  else ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY, service_name);\r
+  if (ret < 0) {\r
+    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REGISTRY"), _T("open_registry()"), 0);\r
+    return 0;\r
   }\r
 \r
-  /* Try to open the registry */\r
-  HKEY key;\r
-  if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, KEY_READ, &key) != ERROR_SUCCESS) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);\r
-    return 2;\r
+  if (sam & KEY_WRITE) {\r
+    if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, sam, 0, &key, 0) != ERROR_SUCCESS) {\r
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);\r
+      return 0;\r
+    }\r
   }\r
+  else {\r
+    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, sam, &key) != ERROR_SUCCESS) {\r
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);\r
+      return 0;\r
+    }\r
+  }\r
+\r
+  return key;\r
+}\r
+\r
+HKEY open_registry(const TCHAR *service_name, REGSAM sam) {\r
+  return open_registry(service_name, 0, sam);\r
+}\r
+\r
+int get_parameters(nssm_service_t *service, STARTUPINFO *si) {\r
+  unsigned long ret;\r
+\r
+  /* Try to open the registry */\r
+  HKEY key = open_registry(service->name, KEY_READ);\r
+  if (! key) return 1;\r
 \r
   /* Try to get executable file - MUST succeed */\r
   if (expand_parameter(key, NSSM_REG_EXE, service->exe, sizeof(service->exe), false)) {\r
@@ -494,24 +507,28 @@ int get_parameters(nssm_service_t *service, STARTUPINFO *si) {
   return 0;\r
 }\r
 \r
-int get_exit_action(TCHAR *service_name, unsigned long *ret, TCHAR *action, bool *default_action) {\r
+/*\r
+  Sets the string for the exit action corresponding to the exit code.\r
+\r
+  ret is a pointer to an unsigned long containing the exit code.\r
+  If ret is NULL, we retrieve the default exit action unconditionally.\r
+\r
+  action is a buffer which receives the string.\r
+\r
+  default_action is a pointer to a bool which is set to false if there\r
+  was an explicit string for the given exit code, or true if we are\r
+  returning the default action.\r
+\r
+  Returns: 0 on success.\r
+           1 on error.\r
+*/\r
+int get_exit_action(const TCHAR *service_name, unsigned long *ret, TCHAR *action, bool *default_action) {\r
   /* Are we returning the default action or a status-specific one? */\r
   *default_action = ! ret;\r
 \r
-  /* Get registry */\r
-  TCHAR registry[KEY_LENGTH];\r
-  if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, NSSM_REG_EXIT) < 0) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REG_EXIT"), _T("get_exit_action()"), 0);\r
-    return 1;\r
-  }\r
-\r
   /* Try to open the registry */\r
-  HKEY key;\r
-  long error = RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, KEY_READ, &key);\r
-  if (error != ERROR_SUCCESS && error != ERROR_FILE_NOT_FOUND) {\r
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);\r
-    return 2;\r
-  }\r
+  HKEY key = open_registry(service_name, NSSM_REG_EXIT, KEY_READ);\r
+  if (! key) return 1;\r
 \r
   unsigned long type = REG_SZ;\r
   unsigned long action_len = ACTION_LEN;\r

diff --git a/registry.h b/registry.h
index 564e674..348c0c4 100644 (file)
--- a/registry.h
+++ b/registry.h
@@ -25,6 +25,8 @@
 #define NSSM_REG_ROTATE_BYTES_HIGH _T("AppRotateBytesHigh")\r
 #define NSSM_STDIO_LENGTH 29\r
 \r
+HKEY open_registry(const TCHAR *, const TCHAR *, REGSAM sam);\r
+HKEY open_registry(const TCHAR *, REGSAM sam);\r
 int create_messages();\r
 int create_parameters(nssm_service_t *, bool);\r
 int create_exit_action(TCHAR *, const TCHAR *, bool);\r
@@ -37,6 +39,6 @@ int get_number(HKEY, TCHAR *, unsigned long *, bool);
 int get_number(HKEY, TCHAR *, unsigned long *);\r
 void override_milliseconds(TCHAR *, HKEY, TCHAR *, unsigned long *, unsigned long, unsigned long);\r
 int get_parameters(nssm_service_t *, STARTUPINFO *);\r
-int get_exit_action(TCHAR *, unsigned long *, TCHAR *, bool *);\r
+int get_exit_action(const TCHAR *, unsigned long *, TCHAR *, bool *);\r
 \r
 #endif\r