reactos/lib/3rdparty/mingw/winit.c

   1 /*
   2  * init.c
   3  * This file has no copyright assigned and is placed in the Public Domain.
   4  * This file is a part of the mingw-runtime package.
   5  * No warranty is given; refer to the file DISCLAIMER within the package.
   6  *
   7  * Code to initialize standard file handles and command line arguments.
   8  * This file is #included in both crt1.c and dllcrt1.c.
   9  *
  10  */
  11
  12 /*
  13  * Access to a standard 'main'-like argument count and list. Also included
  14  * is a table of environment variables.
  15  */
  16 int _argc = 0;
  17 wchar_t **_wargv = 0;
  18
  19 /* NOTE: Thanks to Pedro A. Aranda Gutiirrez <paag@tid.es> for pointing
  20  * this out to me. GetMainArgs (used below) takes a fourth argument
  21  * which is an int that controls the globbing of the command line. If
  22  * _CRT_glob is non-zero the command line will be globbed (e.g. *.*
  23  * expanded to be all files in the startup directory). In the mingw32
  24  * library a _CRT_glob variable is defined as being -1, enabling
  25  * this command line globbing by default. To turn it off and do all
  26  * command line processing yourself (and possibly escape bogons in
  27  * MS's globbing code) include a line in one of your source modules
  28  * defining _CRT_glob and setting it to zero, like this:
  29  *  int _CRT_glob = 0;
  30  */
  31 extern int _CRT_glob;
  32
  33 #ifdef __MSVCRT__
  34 typedef struct {
  35   int newmode;
  36 } _startupinfo;
  37 extern void __wgetmainargs (int *, wchar_t ***, wchar_t ***, int, _startupinfo *);
  38 #else
  39 #error Cannot build unicode version against crtdll
  40 #endif
  41
  42 /*
  43  * Initialize the _argc, _argv and environ variables.
  44  */
  45 static void
  46 _mingw32_init_wmainargs ()
  47 {
  48   /* The environ variable is provided directly in stdlib.h through
  49    * a dll function call. */
  50   wchar_t **dummy_environ;
  51 #ifdef __MSVCRT__
  52   _startupinfo start_info;
  53   start_info.newmode = 0;
  54 #endif
  55
  56   /*
  57    * Microsoft's runtime provides a function for doing just that.
  58    */
  59 #ifdef __MSVCRT__
  60   (void) __wgetmainargs (&_argc, &_wargv, &dummy_environ, _CRT_glob,
  61                         &start_info);
  62 #else
  63 #error Cannot build unicode version against crtdll
  64 #endif
  65 }
  66