67 lines
2.5 KiB
C
67 lines
2.5 KiB
C
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/***
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*execvp.c - execute a file and search along PATH
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*
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* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* defines _execvp() - execute a file and search along PATH
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*
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*Revision History:
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* 10-17-83 RN written
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* 10-29-85 TC added execvpe capability
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* 12-11-87 JCR Added "_LOAD_DS" to declaration
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* 11-20-89 GJF Fixed copyright, indents. Added const attribute to
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* types of filename and argvector.
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* 03-08-90 GJF Replaced _LOAD_DS with _CALLTYPE1, added #include
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* <cruntime.h> and removed #include <register.h>
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* 05-21-90 GJF Fixed stack checking pragma syntax.
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* 08-24-90 SBM Removed check_stack pragma since workhorse execve
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* does stack checks
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* 09-27-90 GJF New-style function declarator.
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* 01-17-91 GJF ANSI naming.
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* 02-14-90 SRW Use NULL instead of _environ to get default.
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* 04-06-93 SKS Replace _CRTAPI* with __cdecl
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* 12-07-93 CFW Wide char enable.
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* 02-06-98 GJF Changes for Win64: changed return type to intptr_t.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <stdlib.h>
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#include <process.h>
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#include <tchar.h>
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/***
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*int _execvp(filename, argvector) - execute file; search along PATH
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*
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*Purpose:
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* Execute the given file with given path and current environ.
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* try to execute the file. start with the name itself (directory '.'),
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* and if that doesn't work start prepending pathnames from the
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* environment until one works or we run out. if the file is a pathname,
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* don't go to the environment to get alternate paths. if errno comes
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* back ENOEXEC, try it as a shell command file with up to MAXARGS-2
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* arguments from the original vector. if a needed text file is busy,
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* wait a little while and try again before despairing completely
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* Actually calls _execvpe() to do all the work.
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*
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*Entry:
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* _TSCHAR *filename - file to execute
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* _TSCHAR **argvector - vector of arguments
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*
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*Exit:
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* destroys the calling process (hopefully)
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* if fails, returns -1
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*
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*Exceptions:
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*
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*******************************************************************************/
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intptr_t __cdecl _texecvp (
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REG3 const _TSCHAR *filename,
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const _TSCHAR * const *argvector
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)
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{
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return _texecvpe( filename, argvector, NULL );
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}
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