119 lines
3.7 KiB
C
119 lines
3.7 KiB
C
/***
|
|
*spawnlpe.c - spawn a child process with environ and search along PATH
|
|
*
|
|
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
|
|
*
|
|
*Purpose:
|
|
* defines _spawnlpe() - spawn a child process with environ/PATH search
|
|
*
|
|
*Revision History:
|
|
* 04-15-84 DFW written
|
|
* 10-29-85 TC added spawnlpe
|
|
* 12-11-87 JCR Added "_LOAD_DS" to declaration
|
|
* 11-20-89 GJF Fixed copyright, alignment. Added const to arg types
|
|
* for filename and arglist. #include-d PROCESS.H and
|
|
* added ellipsis to match prototype.
|
|
* 03-08-90 GJF Replaced _LOAD_DS with _CALLTYPE2, added #include
|
|
* <cruntime.h> and removed #include <register.h>.
|
|
* 07-24-90 SBM Removed redundant includes, replaced <assertm.h> by
|
|
* <assert.h>
|
|
* 09-27-90 GJF New-style function declarator.
|
|
* 01-17-91 GJF ANSI naming.
|
|
* 04-06-93 SKS Replace _CRTAPI* with __cdecl
|
|
* 07-16-93 SRW ALPHA Merge
|
|
* 08-31-93 GJF Merged NT SDK and Cuda versions
|
|
* 12-07-93 CFW Wide char enable.
|
|
* 01-10-95 CFW Debug CRT allocs.
|
|
* 02-06-95 CFW assert -> _ASSERTE.
|
|
* 02-06-98 GJF Changes for Win64: changed return type to intptr_t.
|
|
*
|
|
*******************************************************************************/
|
|
|
|
#include <cruntime.h>
|
|
#include <stddef.h>
|
|
#include <process.h>
|
|
#include <stdarg.h>
|
|
#include <internal.h>
|
|
#include <malloc.h>
|
|
#include <tchar.h>
|
|
#include <dbgint.h>
|
|
|
|
/***
|
|
*int _spawnlpe(modeflag, filename, arglist) - spawn a child process
|
|
*
|
|
*Purpose:
|
|
* Spawns a child process.
|
|
* formats the parameters and calls _spawnvpe to do the work of searching
|
|
* the PATH environment variable and calling _spawnve. The NULL
|
|
* environment pointer indicates that the new process will inherit the
|
|
* parents process's environment. NOTE - at least one argument must be
|
|
* present. This argument is always, by convention, the name of the file
|
|
* being spawned.
|
|
*
|
|
*Entry:
|
|
* int modeflag - defines what mode of spawn (WAIT, NOWAIT, OVERLAY)
|
|
* only WAIT and OVERLAY currently supported
|
|
* _TSCHAR *pathname - file to spawn
|
|
* _TSCHAR *arglist - list of arguments (environ at end)
|
|
* call as _spawnlpe(modeflag, path, arg0, arg1, ..., argn, NULL, envp);
|
|
*
|
|
*Exit:
|
|
* returns exit code of spawned process
|
|
* returns -1 if fails
|
|
*
|
|
*Exceptions:
|
|
*
|
|
*******************************************************************************/
|
|
|
|
intptr_t __cdecl _tspawnlpe (
|
|
int modeflag,
|
|
const _TSCHAR *filename,
|
|
const _TSCHAR *arglist,
|
|
...
|
|
)
|
|
{
|
|
#ifdef _M_IX86
|
|
|
|
REG1 const _TSCHAR **argp;
|
|
|
|
_ASSERTE(filename != NULL);
|
|
_ASSERTE(*filename != _T('\0'));
|
|
_ASSERTE(arglist != NULL);
|
|
_ASSERTE(*arglist != _T('\0'));
|
|
|
|
argp = &arglist;
|
|
while (*argp++)
|
|
;
|
|
|
|
return(_tspawnvpe(modeflag,filename,&arglist,(_TSCHAR **)*argp));
|
|
|
|
#else /* ndef _M_IX86 */
|
|
|
|
va_list vargs;
|
|
_TSCHAR * argbuf[64];
|
|
_TSCHAR ** argv;
|
|
_TSCHAR ** envp;
|
|
intptr_t result;
|
|
|
|
_ASSERTE(filename != NULL);
|
|
_ASSERTE(*filename != _T('\0'));
|
|
_ASSERTE(arglist != NULL);
|
|
_ASSERTE(*arglist != _T('\0'));
|
|
|
|
va_start(vargs, arglist);
|
|
#ifdef WPRFLAG
|
|
argv = _wcapture_argv(&vargs, arglist, argbuf, 64);
|
|
#else
|
|
argv = _capture_argv(&vargs, arglist, argbuf, 64);
|
|
#endif
|
|
envp = va_arg(vargs, _TSCHAR **);
|
|
va_end(vargs);
|
|
|
|
result = _tspawnvpe(modeflag,filename,argv,envp);
|
|
if (argv && argv != argbuf)
|
|
_free_crt(argv);
|
|
return result;
|
|
|
|
#endif /* _M_IX86 */
|
|
}
|