David Bremner committed some fixes.

[nssm.git] / nssm.cpp

diff --git a/nssm.cpp b/nssm.cpp
index e29ead6..647ea40 100644 (file)
--- a/nssm.cpp
+++ b/nssm.cpp
@@ -4,6 +4,9 @@ extern unsigned long tls_index;
 extern bool is_admin;\r
 extern imports_t imports;\r
 \r
+static TCHAR unquoted_imagepath[PATH_LENGTH];\r
+static TCHAR imagepath[PATH_LENGTH];\r
+\r
 /* Are two strings case-insensitively equivalent? */\r
 int str_equiv(const TCHAR *a, const TCHAR *b) {\r
   size_t len = _tcslen(a);\r
@@ -55,6 +58,37 @@ void check_admin() {
   FreeSid(AdministratorsGroup);\r
 }\r
 \r
+static int elevate(int argc, TCHAR **argv, unsigned long message) {\r
+  print_message(stderr, message);\r
+\r
+  SHELLEXECUTEINFO sei;\r
+  ZeroMemory(&sei, sizeof(sei));\r
+  sei.cbSize = sizeof(sei);\r
+  sei.lpVerb = _T("runas");\r
+  sei.lpFile = (TCHAR *) nssm_imagepath();\r
+\r
+  TCHAR *args = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, EXE_LENGTH * sizeof(TCHAR));\r
+  if (! args) {\r
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("GetCommandLine()"), _T("elevate()"));\r
+    return 111;\r
+  }\r
+\r
+  /* Get command line, which includes the path to NSSM, and skip that part. */\r
+  _sntprintf_s(args, EXE_LENGTH, _TRUNCATE, _T("%s"), GetCommandLine());\r
+  size_t s = _tcslen(argv[0]) + 1;\r
+  if (args[0] == _T('"')) s += 2;\r
+  while (isspace(args[s])) s++;\r
+\r
+  sei.lpParameters = args + s;\r
+  sei.nShow = SW_SHOW;\r
+\r
+  unsigned long exitcode = 0;\r
+  if (! ShellExecuteEx(&sei)) exitcode = 100;\r
+\r
+  HeapFree(GetProcessHeap(), 0, (void *) args);\r
+  return exitcode;\r
+}\r
+\r
 int num_cpus() {\r
   DWORD_PTR i, affinity, system_affinity;\r
   if (! GetProcessAffinityMask(GetCurrentProcess(), &affinity, &system_affinity)) return 64;\r
@@ -62,6 +96,14 @@ int num_cpus() {
   return (int) i;\r
 }\r
 \r
+const TCHAR *nssm_unquoted_imagepath() {\r
+  return unquoted_imagepath;\r
+}\r
+\r
+const TCHAR *nssm_imagepath() {\r
+  return imagepath;\r
+}\r
+\r
 int _tmain(int argc, TCHAR **argv) {\r
   check_console();\r
 \r
@@ -80,6 +122,11 @@ int _tmain(int argc, TCHAR **argv) {
   /* Set up function pointers. */\r
   if (get_imports()) exit(111);\r
 \r
+  /* Remember our path for later. */\r
+  GetModuleFileName(0, unquoted_imagepath, _countof(unquoted_imagepath));\r
+  GetModuleFileName(0, imagepath, _countof(imagepath));\r
+  PathQuoteSpaces(imagepath);\r
+\r
   /* Elevate */\r
   if (argc > 1) {\r
     /*\r
@@ -98,27 +145,20 @@ int _tmain(int argc, TCHAR **argv) {
     if (str_equiv(argv[1], _T("status"))) exit(control_service(SERVICE_CONTROL_INTERROGATE, argc - 2, argv + 2));\r
     if (str_equiv(argv[1], _T("rotate"))) exit(control_service(NSSM_SERVICE_CONTROL_ROTATE, argc - 2, argv + 2));\r
     if (str_equiv(argv[1], _T("install"))) {\r
-      if (! is_admin) {\r
-        print_message(stderr, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_INSTALL);\r
-        exit(100);\r
-      }\r
+      if (! is_admin) exit(elevate(argc, argv, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_INSTALL));\r
+      create_messages();\r
       exit(pre_install_service(argc - 2, argv + 2));\r
     }\r
     if (str_equiv(argv[1], _T("edit")) || str_equiv(argv[1], _T("get")) || str_equiv(argv[1], _T("set")) || str_equiv(argv[1], _T("reset")) || str_equiv(argv[1], _T("unset"))) {\r
-      if (! is_admin) {\r
-        print_message(stderr, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_EDIT);\r
-        exit(100);\r
-      }\r
       int ret = pre_edit_service(argc - 1, argv + 1);\r
+      if (ret == 3 && ! is_admin && argc == 3) exit(elevate(argc, argv, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_EDIT));\r
       /* There might be a password here. */\r
       for (int i = 0; i < argc; i++) SecureZeroMemory(argv[i], _tcslen(argv[i]) * sizeof(TCHAR));\r
       exit(ret);\r
     }\r
+    if (str_equiv(argv[1], _T("list"))) exit(list_nssm_services());\r
     if (str_equiv(argv[1], _T("remove"))) {\r
-      if (! is_admin) {\r
-        print_message(stderr, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_REMOVE);\r
-        exit(100);\r
-      }\r
+      if (! is_admin) exit(elevate(argc, argv, NSSM_MESSAGE_NOT_ADMINISTRATOR_CANNOT_REMOVE));\r
       exit(pre_remove_service(argc - 2, argv + 2));\r
     }\r
   }\r