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#ifdef CRTDLL
/***
*crtexe.c - Initialization for client EXE using CRT DLL (Win32, Dosx32)
*
* Copyright (c) 1991-1993, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Set up call to client's main() or WinMain().
*
*Revision History:
* 08-12-91 GJF Module created.
* 01-05-92 GJF Substantially revised
* 01-17-92 GJF Restored Stevewo's scheme for unhandled exceptions.
* 01-29-92 GJF Added support for linked-in options (equivalents of
* binmode.obj, commode.obj and setargv.obj).
* 04-17-92 SKS Add call to _initterm() to do C++ constructors (I386)
* 08-01-92 SRW winxcpt.h replaced bu excpt.h which is included by oscalls.h
* 09-16-92 SKS Prepare for C8 C++ for MIPS by calling C++ constructors
* 04-26-93 GJF Made lpszCommandLine (unsigned char *) to deal with
* chars > 127 in the command line.
* 04-27-93 GJF Removed support for _RT_STACK, _RT_INTDIV,
* _RT_INVALDISP and _RT_NONCONT.
* 05-14-93 GJF Added support for quoted program names.
* 07-16-93 SRW ALPHA Merge
* 12-07-93 GJF MS C++ front-end now used on Alpha
* 05-24-94 SRW Fix call to WinMain to match one in ..\startup\crt0.c
*
*******************************************************************************/
/*
* SPECIAL BUILD MACRO! Note that crtexe.c (and crtexew.c) is linked in with
* the client's code. It does not go into crtdll.dll! Therefore, it must be
* built under the _DLL switch (like user code) and CRTDLL must be undefined.
*/
#undef CRTDLL
#define _DLL
#include <cruntime.h>
#include <oscalls.h>
#include <internal.h>
#include <rterr.h>
#include <stdlib.h>
#undef _fmode /* undefine these so that we can reference the */
#undef _commode /* local version as well as the DLL variables */
extern int _CRTVAR1 _fmode; /* must match the definition in <stdlib.h> */
extern int _commode; /* must match the definition in <internal.h> */
static int _dowildcard = 0; /* passed to __GetMainArgs() */
/*
* routine in DLL to do initialization (in this case, C++ constructors)
*/
typedef void (_CALLTYPE1 *PF)(void);
extern void _CALLTYPE4 _initterm(PF *, PF *);
/*
* pointers to initialization sections
*/
extern PF __xc_a[], __xc_z[]; /* C++ initializers */
/***
*void mainCRTStartup(void)
*
*Purpose:
* This routine does the C runtime initialization, calls main(), and
* then exits. It never returns.
*
*Entry:
*
*Exit:
*
*******************************************************************************/
#ifdef _WINMAIN_
void WinMainCRTStartup(
#else
void mainCRTStartup(
#endif
void
)
{
int argc; /* three standard arguments to main */
char **argv;
char **envp;
int mainret;
#ifdef _WINMAIN_
unsigned char *lpszCommandLine;
STARTUPINFOA StartupInfo;
#endif
/*
* Propogate the _fmode and _commode variables to the DLL
*/
*_fmode_dll = _fmode;
*_commode_dll = _commode;
/*
* Call _setargv(), which will call the __setargv() in this module
* if SETARGV.OBJ is linked with the EXE. If SETARGV.OBJ is not
* linked with the EXE, a _dummy setargv() will be called.
*/
_setargv();
/*
* Get the arguments for the call to main. Note this must be done
* explicitly, rather than as part of the dll's initialization, to
* implement optional expansion of wild card chars in filename args
*/
__GetMainArgs(&argc, &argv, &envp, _dowildcard);
/*
* do C++ constructors (initializers) specific to this EXE
*/
_initterm( __xc_a, __xc_z );
try {
#ifdef _WINMAIN_
/*
* Skip past program name (first token in command line).
* Check for and handle quoted program name.
*/
lpszCommandLine = (unsigned char *)_acmdln;
if ( *lpszCommandLine == '\"' ) {
/*
* Scan, and skip over, subsequent characters until
* another double-quote or a null is encountered.
*/
while ( *++lpszCommandLine && (*lpszCommandLine
!= '\"') );
/*
* If we stopped on a double-quote (usual case), skip
* over it.
*/
if ( *lpszCommandLine == '\"' )
lpszCommandLine++;
}
else {
while (*lpszCommandLine > ' ')
lpszCommandLine++;
}
/*
* Skip past any white space preceeding the second token.
*/
while (*lpszCommandLine && (*lpszCommandLine <= ' ')) {
lpszCommandLine++;
}
StartupInfo.dwFlags = 0;
GetStartupInfoA( &StartupInfo );
mainret = WinMain( GetModuleHandle(NULL),
NULL,
lpszCommandLine,
StartupInfo.dwFlags & STARTF_USESHOWWINDOW
? StartupInfo.wShowWindow
: SW_SHOWDEFAULT
);
#else
mainret = main(argc, argv, envp);
#endif
exit(mainret);
}
except ( _XcptFilter(GetExceptionCode(), GetExceptionInformation()) )
{
/*
* Should never reach here
*/
_exit( GetExceptionCode() );
} /* end of try - except */
}
/***
*__setargv - dummy version (for wildcard expansion) for CRTDLL.DLL model only
*
*Purpose:
* If the EXE that is linked with CRTDLL.LIB is linked explicitly with
* SETARGV.OBJ, the call to _setargv() in the C Run-Time start-up code
* (above) will call this routine, instead of calling a dummy version of
* _setargv() which will do nothing. This will set to one the static
* variable which is passed to __GetMainArgs(), thus enabling wildcard
* expansion of the command line arguments.
*
* In the statically-linked C Run-Time models, _setargv() and __setargv()
* are the actual routines that do the work, but this code exists in
* CRTDLL.DLL and so some tricks have to be played to make the same
* SETARGV.OBJ work for EXE's linked with both LIBC.LIB and CRTDLL.LIB.
*
*Entry:
* The static variable _dowildcard is zero (presumably).
*
*Exit:
* The static variable _dowildcard is set to one, meaning that the
* routine __GetMainArgs() in CRTDLL.DLL *will* do wildcard expansion on
* the command line arguments. (The default behavior is that it won't.)
*
*Exceptions:
*
*******************************************************************************/
void _CALLTYPE1 __setargv ( void )
{
_dowildcard = 1;
}
#endif /* CRTDLL */
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