Clean up Parameters properly.

If create_parameters() failed to write Application, AppParameters or
AppDirectory it would try to clean up by deleting the Parameters key.
The method used to do so was flawed.  It would attempt to delete the key
defined by the NSSM_REGISTRY macro but that macro contains a printf
control string and is not suitable for standalone use.

diff --git a/registry.cpp b/registry.cpp
index 5953f8a..e499933 100644 (file)
--- a/registry.cpp
+++ b/registry.cpp
@@ -32,19 +32,23 @@ int create_parameters(nssm_service_t *service, bool editing) {
   HKEY key = open_registry(service->name, KEY_WRITE);\r
   if (! key) return 1;\r
 \r
+  /* Remember parameters in case we need to delete them. */\r
+  TCHAR registry[KEY_LENGTH];\r
+  int ret = service_registry_path(service->name, true, 0, registry, _countof(registry));\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
+    if (ret > 0) RegDeleteKey(HKEY_LOCAL_MACHINE, registry);\r
     RegCloseKey(key);\r
     return 2;\r
   }\r
   if (set_expand_string(key, NSSM_REG_FLAGS, service->flags)) {\r
-    RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);\r
+    if (ret > 0) RegDeleteKey(HKEY_LOCAL_MACHINE, registry);\r
     RegCloseKey(key);\r
     return 3;\r
   }\r
   if (set_expand_string(key, NSSM_REG_DIR, service->dir)) {\r
-    RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);\r
+    if (ret > 0) RegDeleteKey(HKEY_LOCAL_MACHINE, registry);\r
     RegCloseKey(key);\r
     return 4;\r
   }\r