src/lib/fs/winlib.c

   1 /* Copyright (c) 2003, Roger Dingledine
   2  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   3  * Copyright (c) 2007-2021, The Tor Project, Inc. */
   4 /* See LICENSE for licensing information */
   5
   6 /**
   7  * \file winlib.c
   8  *
   9  * \brief Find and load windows system libraries.
  10  *
  11  * We use this function to dynamically load code at runtime that might not be
  12  * available on all versions of Windows that we support.
  13  **/
  14
  15 #ifdef _WIN32
  16 #include "lib/fs/winlib.h"
  17
  18 HANDLE
  19 load_windows_system_library(const TCHAR *library_name)
  20 {
  21   TCHAR path[MAX_PATH];
  22   unsigned n;
  23   n = GetSystemDirectory(path, MAX_PATH);
  24   if (n == 0 || n + _tcslen(library_name) + 2 >= MAX_PATH)
  25     return 0;
  26   _tcscat(path, TEXT("\\"));
  27   _tcscat(path, library_name);
  28   return LoadLibrary(path);
  29 }
  30 #endif /* defined(_WIN32) */