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Sprite 1984 - 1993
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Sprite 1984 - 1993.iso
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unixSyscall
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execve.c
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C/C++ Source or Header
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1991-12-20
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/*
* execve.c --
*
* Procedure to emulate the UNIX execve kernel call under Sprite.
*
* Copyright (C) 1986 Regents of the University of California
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef lint
static char rcsid[] = "$Header: /sprite/src/lib/c/unixSyscall/RCS/execve.c,v 1.2 88/10/28 08:58:01 ouster Exp $ SPRITE (Berkeley)";
#endif not lint
#include "sprite.h"
#include "proc.h"
#include "compatInt.h"
/*
* The variable below is a secret trap door that can be set
* to non-zero to force the next exec to put the process into
* the debugger before it executes its first instruction.
*/
int _execDebug = 0;
/*
*----------------------------------------------------------------------
*
* execve --
*
* Procedure to map from Unix execve system call to Sprite Proc_ExecEnv.
*
* Results:
* execve() should never return. If it does, however, UNIX_ERROR is
* returned.
*
* Side effects:
* Any open streams are closed, then the process invoking execve() is
* terminated.
*
*----------------------------------------------------------------------
*/
int
execve(name, argv, envp)
char *name; /* name of file to exec */
char *argv[]; /* array of arguments */
char *envp[]; /* array of environment pointers */
{
ReturnStatus status; /* result returned by Sprite system calls */
status = Proc_ExecEnv(name, argv, envp, _execDebug);
/*
* We should never reach this point, regardless of status value.
*/
errno = Compat_MapCode(status);
return(UNIX_ERROR);
}