static void MZ_Launch( LPCSTR cmdtail, int length )
{
TDB *pTask = GlobalLock16( GetCurrentTask() );
BYTE *psp_start = PTR_REAL_TO_LIN( DOSVM_psp, 0 );
DWORD rv;
SYSLEVEL *lock;
MZ_FillPSP(psp_start, cmdtail, length);
pTask->flags |= TDBF_WINOLDAP;
/* DTA is set to PSP:0080h when a program is started. */
pTask->dta = MAKESEGPTR( DOSVM_psp, 0x80 );
GetpWin16Lock( &lock );
_LeaveSysLevel( lock );
ResumeThread(dosvm_thread);
rv = DOSVM_Loop(dosvm_thread);
CloseHandle(dosvm_thread);
dosvm_thread = 0; dosvm_tid = 0;
CloseHandle(loop_thread);
loop_thread = 0; loop_tid = 0;
VGA_Clean();
ExitProcess(rv);
}
static DWORD MZ_Launch( LPCSTR cmdtail, int length )
{
TDB *pTask = GlobalLock16( GetCurrentTask() );
BYTE *psp_start = PTR_REAL_TO_LIN( DOSVM_psp, 0 );
DWORD rv;
SYSLEVEL *lock;
MSG msg;
MZ_FillPSP(psp_start, cmdtail, length);
pTask->flags |= TDBF_WINOLDAP;
/* DTA is set to PSP:0080h when a program is started. */
pTask->dta = MAKESEGPTR( DOSVM_psp, 0x80 );
GetpWin16Lock( &lock );
_LeaveSysLevel( lock );
/* force the message queue to be created */
PeekMessageW(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
ResumeThread(dosvm_thread);
rv = DOSVM_Loop(dosvm_thread);
CloseHandle(dosvm_thread);
dosvm_thread = 0; dosvm_tid = 0;
CloseHandle(loop_thread);
loop_thread = 0; loop_tid = 0;
if (rv) return rv;
VGA_Clean();
ExitProcess(0);
}
/***********************************************************************
* MZ_Exec
*
* this may only be called from existing DOS processes
*/
BOOL WINAPI MZ_Exec( CONTEXT86 *context, LPCSTR filename, BYTE func, LPVOID paramblk )
{
DWORD binType;
STARTUPINFOA st;
PROCESS_INFORMATION pe;
HANDLE hFile;
BOOL ret = FALSE;
if(!GetBinaryTypeA(filename, &binType)) /* determine what kind of binary this is */
{
return FALSE; /* binary is not an executable */
}
/* handle non-dos executables */
if(binType != SCS_DOS_BINARY)
{
if(func == 0) /* load and execute */
{
LPSTR fullCmdLine;
WORD fullCmdLength;
LPBYTE psp_start = (LPBYTE)((DWORD)DOSVM_psp << 4);
PDB16 *psp = (PDB16 *)psp_start;
ExecBlock *blk = (ExecBlock *)paramblk;
LPBYTE cmdline = PTR_REAL_TO_LIN(SELECTOROF(blk->cmdline),OFFSETOF(blk->cmdline));
LPBYTE envblock = PTR_REAL_TO_LIN(psp->environment, 0);
int cmdLength = cmdline[0];
/*
* If cmdLength is 127, command tail is truncated and environment
* variable CMDLINE should contain full command line
* (this includes filename).
*/
if (cmdLength == 127)
{
FIXME( "CMDLINE argument passing is unimplemented.\n" );
cmdLength = 126; /* FIXME */
}
fullCmdLength = (strlen(filename) + 1) + cmdLength + 1; /* filename + space + cmdline + terminating null character */
fullCmdLine = HeapAlloc(GetProcessHeap(), 0, fullCmdLength);
if(!fullCmdLine) return FALSE; /* return false on memory alloc failure */
/* build the full command line from the executable file and the command line being passed in */
snprintf(fullCmdLine, fullCmdLength, "%s ", filename); /* start off with the executable filename and a space */
memcpy(fullCmdLine + strlen(fullCmdLine), cmdline + 1, cmdLength); /* append cmdline onto the end */
fullCmdLine[fullCmdLength - 1] = 0; /* null terminate string */
ZeroMemory (&st, sizeof(STARTUPINFOA));
st.cb = sizeof(STARTUPINFOA);
ret = CreateProcessA (NULL, fullCmdLine, NULL, NULL, TRUE, 0, envblock, NULL, &st, &pe);
/* wait for the app to finish and clean up PROCESS_INFORMATION handles */
if(ret)
{
WaitForSingleObject(pe.hProcess, INFINITE); /* wait here until the child process is complete */
CloseHandle(pe.hProcess);
CloseHandle(pe.hThread);
}
HeapFree(GetProcessHeap(), 0, fullCmdLine); /* free the memory we allocated */
}
else
{
FIXME("EXEC type of %d not implemented for non-dos executables\n", func);
ret = FALSE;
}
return ret;
} /* if(binType != SCS_DOS_BINARY) */
/* handle dos executables */
hFile = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, 0);
if (hFile == INVALID_HANDLE_VALUE) return FALSE;
switch (func) {
case 0: /* load and execute */
case 1: /* load but don't execute */
{
/* save current process's return SS:SP now */
LPBYTE psp_start = (LPBYTE)((DWORD)DOSVM_psp << 4);
PDB16 *psp = (PDB16 *)psp_start;
psp->saveStack = (DWORD)MAKESEGPTR(context->SegSs, LOWORD(context->Esp));
}
ret = MZ_DoLoadImage( hFile, filename, NULL, ((ExecBlock *)paramblk)->env_seg );
if (ret) {
/* MZ_LoadImage created a new PSP and loaded new values into it,
* let's work on the new values now */
LPBYTE psp_start = (LPBYTE)((DWORD)DOSVM_psp << 4);
ExecBlock *blk = (ExecBlock *)paramblk;
LPBYTE cmdline = PTR_REAL_TO_LIN(SELECTOROF(blk->cmdline),OFFSETOF(blk->cmdline));
/* First character contains the length of the command line. */
MZ_FillPSP(psp_start, (LPSTR)cmdline + 1, cmdline[0]);
/* the lame MS-DOS engineers decided that the return address should be in int22 */
DOSVM_SetRMHandler(0x22, (FARPROC16)MAKESEGPTR(context->SegCs, LOWORD(context->Eip)));
if (func) {
/* don't execute, just return startup state */
/*
* From Ralph Brown:
* For function 01h, the AX value to be passed to the child program
* is put on top of the child's stack
*/
LPBYTE stack;
init_sp -= 2;
stack = (LPBYTE) CTX_SEG_OFF_TO_LIN(context, init_ss, init_sp);
/* FIXME: push AX correctly */
stack[0] = 0x00; /* push AL */
stack[1] = 0x00; /* push AH */
blk->init_cs = init_cs;
blk->init_ip = init_ip;
blk->init_ss = init_ss;
blk->init_sp = init_sp;
} else {
/* execute by making us return to new process */
context->SegCs = init_cs;
context->Eip = init_ip;
context->SegSs = init_ss;
context->Esp = init_sp;
context->SegDs = DOSVM_psp;
context->SegEs = DOSVM_psp;
context->Eax = 0;
}
}
break;
case 3: /* load overlay */
{
OverlayBlock *blk = (OverlayBlock *)paramblk;
ret = MZ_DoLoadImage( hFile, filename, blk, 0);
}
break;
default:
FIXME("EXEC load type %d not implemented\n", func);
SetLastError(ERROR_INVALID_FUNCTION);
break;
}
CloseHandle(hFile);
return ret;
}