1*f14fb602SLionel Sambuc /* $NetBSD: execle.c,v 1.12 2011/06/30 19:46:07 joerg Exp $ */
22fe8fb19SBen Gras
32fe8fb19SBen Gras /*-
42fe8fb19SBen Gras * Copyright (c) 1991, 1993
52fe8fb19SBen Gras * The Regents of the University of California. All rights reserved.
62fe8fb19SBen Gras *
72fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without
82fe8fb19SBen Gras * modification, are permitted provided that the following conditions
92fe8fb19SBen Gras * are met:
102fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright
112fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer.
122fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright
132fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the
142fe8fb19SBen Gras * documentation and/or other materials provided with the distribution.
152fe8fb19SBen Gras * 3. Neither the name of the University nor the names of its contributors
162fe8fb19SBen Gras * may be used to endorse or promote products derived from this software
172fe8fb19SBen Gras * without specific prior written permission.
182fe8fb19SBen Gras *
192fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
202fe8fb19SBen Gras * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
212fe8fb19SBen Gras * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
222fe8fb19SBen Gras * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
232fe8fb19SBen Gras * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
242fe8fb19SBen Gras * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
252fe8fb19SBen Gras * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
262fe8fb19SBen Gras * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
272fe8fb19SBen Gras * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
282fe8fb19SBen Gras * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
292fe8fb19SBen Gras * SUCH DAMAGE.
302fe8fb19SBen Gras */
312fe8fb19SBen Gras
322fe8fb19SBen Gras #include <sys/cdefs.h>
332fe8fb19SBen Gras #if defined(LIBC_SCCS) && !defined(lint)
342fe8fb19SBen Gras #if 0
352fe8fb19SBen Gras static char sccsid[] = "@(#)exec.c 8.1 (Berkeley) 6/4/93";
362fe8fb19SBen Gras #else
37*f14fb602SLionel Sambuc __RCSID("$NetBSD: execle.c,v 1.12 2011/06/30 19:46:07 joerg Exp $");
382fe8fb19SBen Gras #endif
392fe8fb19SBen Gras #endif /* LIBC_SCCS and not lint */
402fe8fb19SBen Gras
412fe8fb19SBen Gras #include "namespace.h"
422fe8fb19SBen Gras #include <stdarg.h>
432fe8fb19SBen Gras #include <stdlib.h>
442fe8fb19SBen Gras #include <unistd.h>
452fe8fb19SBen Gras
462fe8fb19SBen Gras #ifdef __weak_alias
__weak_alias(execle,_execle)472fe8fb19SBen Gras __weak_alias(execle,_execle)
482fe8fb19SBen Gras #endif
492fe8fb19SBen Gras
502fe8fb19SBen Gras int
512fe8fb19SBen Gras execle(const char *name, const char *arg, ...)
522fe8fb19SBen Gras {
532fe8fb19SBen Gras va_list ap;
542fe8fb19SBen Gras char **argv, **envp;
552fe8fb19SBen Gras int i;
562fe8fb19SBen Gras
572fe8fb19SBen Gras va_start(ap, arg);
582fe8fb19SBen Gras for (i = 2; va_arg(ap, char *) != NULL; i++)
592fe8fb19SBen Gras continue;
602fe8fb19SBen Gras va_end(ap);
612fe8fb19SBen Gras
622fe8fb19SBen Gras argv = alloca(i * sizeof (char *));
632fe8fb19SBen Gras
642fe8fb19SBen Gras va_start(ap, arg);
652fe8fb19SBen Gras argv[0] = __UNCONST(arg);
662fe8fb19SBen Gras for (i = 1; (argv[i] = va_arg(ap, char *)) != NULL; i++)
672fe8fb19SBen Gras continue;
682fe8fb19SBen Gras envp = va_arg(ap, char **);
692fe8fb19SBen Gras va_end(ap);
702fe8fb19SBen Gras
712fe8fb19SBen Gras return execve(name, argv, envp);
722fe8fb19SBen Gras }
73