94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/* $NetBSD: execl.c,v 1.8 2002/05/26 14:03:19 wiz Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1991, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
#if 0
|
|
static char sccsid[] = "@(#)exec.c 8.1 (Berkeley) 6/4/93";
|
|
#else
|
|
__RCSID("$NetBSD: execl.c,v 1.8 2002/05/26 14:03:19 wiz Exp $");
|
|
#endif
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include "namespace.h"
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include "reentrant.h"
|
|
|
|
#ifdef __weak_alias
|
|
__weak_alias(execl,_execl)
|
|
#endif
|
|
|
|
|
|
extern char **environ;
|
|
#ifdef _REENT
|
|
extern rwlock_t __environ_lock;
|
|
#endif
|
|
|
|
int
|
|
execl(const char *name, const char *arg, ...)
|
|
{
|
|
int r;
|
|
#if defined(__i386__) || defined(__m68k__) || defined(__ns32k__)
|
|
rwlock_rdlock(&__environ_lock);
|
|
r = execve(name, (char **) &arg, environ);
|
|
rwlock_unlock(&__environ_lock);
|
|
return (r);
|
|
#else
|
|
va_list ap;
|
|
char **argv;
|
|
int i;
|
|
|
|
va_start(ap, arg);
|
|
for (i = 2; va_arg(ap, char *) != NULL; i++)
|
|
;
|
|
va_end(ap);
|
|
|
|
argv = alloca (i * sizeof (char *));
|
|
|
|
va_start(ap, arg);
|
|
argv[0] = (char *) arg;
|
|
for (i = 1; (argv[i] = (char *) va_arg(ap, char *)) != NULL; i++)
|
|
;
|
|
va_end(ap);
|
|
|
|
rwlock_rdlock(&__environ_lock);
|
|
r = execve(name, argv, environ);
|
|
rwlock_unlock(&__environ_lock);
|
|
return (r);
|
|
#endif
|
|
}
|