newlib-cygwin/winsup/mingw/init.c

85 lines
2.4 KiB
C

/*
* init.c
*
* Code to initialize standard file handles and command line arguments.
* This file is #included in both crt1.c and dllcrt1.c.
*
* This file is part of the Mingw32 package.
*
* Contributors:
* Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
* Maintained by Mumit Khan <khan@xraylith.wisc.EDU>
*
* THIS SOFTWARE IS NOT COPYRIGHTED
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRENTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAMED. This includes but is not limited to warrenties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* $Revision$
* $Author$
* $Date$
*
*/
/*
* Access to a standard 'main'-like argument count and list. Also included
* is a table of environment variables.
*/
int _argc = 0;
char **_argv = 0;
/* NOTE: Thanks to Pedro A. Aranda Gutiirrez <paag@tid.es> for pointing
* this out to me. GetMainArgs (used below) takes a fourth argument
* which is an int that controls the globbing of the command line. If
* _CRT_glob is non-zero the command line will be globbed (e.g. *.*
* expanded to be all files in the startup directory). In the mingw32
* library a _CRT_glob variable is defined as being -1, enabling
* this command line globbing by default. To turn it off and do all
* command line processing yourself (and possibly escape bogons in
* MS's globbing code) include a line in one of your source modules
* defining _CRT_glob and setting it to zero, like this:
* int _CRT_glob = 0;
*/
extern int _CRT_glob;
#ifdef __MSVCRT__
typedef struct {
int newmode;
} _startupinfo;
extern void __getmainargs (int *, char ***, char ***, int, _startupinfo *);
#else
extern void __GetMainArgs (int *, char ***, char ***, int);
#endif
/*
* Initialize the _argc, _argv and environ variables.
*/
static void
_mingw32_init_mainargs ()
{
/* The environ variable is provided directly in stdlib.h through
* a dll function call. */
char **dummy_environ;
#ifdef __MSVCRT__
_startupinfo start_info;
start_info.newmode = 0;
#endif
/*
* Microsoft's runtime provides a function for doing just that.
*/
#ifdef __MSVCRT__
(void) __getmainargs (&_argc, &_argv, &dummy_environ, _CRT_glob,
&start_info);
#else
/* CRTDLL version */
(void) __GetMainArgs (&_argc, &_argv, &dummy_environ, _CRT_glob);
#endif
}