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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* execle(file, arg1, arg2, ..., 0, envp)
*/
#pragma weak execle = _execle
#include "synonyms.h"
#include <sys/types.h>
#include <alloca.h>
#include <malloc.h>
#include <stdarg.h>
#include <unistd.h>
/*VARARGS1*/
int
execle(const char *file, const char *arg0, ...)
{
char **argp;
va_list args;
char **argvec;
register char **environmentp;
int err;
int nargs = 0;
char *nextarg;
/*
* count the number of arguments in the variable argument list
* and allocate an argument vector for them on the stack,
* adding space at the end for a terminating null pointer
*/
va_start(args, arg0);
while (va_arg(args, char *) != (char *)0) {
nargs++;
}
/*
* save the environment pointer, which is at the end of the
* variable argument list
*/
environmentp = va_arg(args, char **);
va_end(args);
/*
* load the arguments in the variable argument list
* into the argument vector, and add the terminating null pointer
*/
va_start(args, arg0);
/* workaround for bugid 1242839 */
argvec = (char **)alloca((size_t)((nargs + 2) * sizeof (char *)));
argp = argvec;
*argp++ = (char *)arg0;
while ((nextarg = va_arg(args, char *)) != (char *)0) {
*argp++ = nextarg;
}
va_end(args);
*argp = (char *)0;
/*
* call execve()
*/
err = execve(file, argvec, environmentp);
return (err);
}
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