Colony » Colony Scout » Colony Scout OS

/*        $NetBSD: execl.c,v 1.11 2003/08/07 16:42:47 agc 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. 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>

#include <stdarg.h>

#include <stdlib.h>

#include <unistd.h>

extern char **environ;

int

execl(const char *name, const char *arg, ...)

{

        int r;

#if defined(__x86__)

        r = execve(name, (char **) &arg, environ);

        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);

        r = execve(name, argv, environ);

        return (r);

#endif

}