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Annotation of prex-old/usr/lib/libc/gen/execl.c, Revision 1.1

1.1     ! nbrk        1: /*     $NetBSD: execl.c,v 1.11 2003/08/07 16:42:47 agc Exp $   */
        !             2:
        !             3: /*-
        !             4:  * Copyright (c) 1991, 1993
        !             5:  *     The Regents of the University of California.  All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  * 3. Neither the name of the University nor the names of its contributors
        !            16:  *    may be used to endorse or promote products derived from this software
        !            17:  *    without specific prior written permission.
        !            18:  *
        !            19:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            29:  * SUCH DAMAGE.
        !            30:  */
        !            31:
        !            32: #include <sys/cdefs.h>
        !            33: #include <stdarg.h>
        !            34: #include <stdlib.h>
        !            35: #include <unistd.h>
        !            36:
        !            37: extern char **environ;
        !            38:
        !            39: int
        !            40: execl(const char *name, const char *arg, ...)
        !            41: {
        !            42:        int r;
        !            43: #if defined(__i386__) || defined(__m68k__) || defined(__ns32k__)
        !            44:        r = execve(name, (char **) &arg, environ);
        !            45:        return (r);
        !            46: #else
        !            47:        va_list ap;
        !            48:        char **argv;
        !            49:        int i;
        !            50:
        !            51:        va_start(ap, arg);
        !            52:        for (i = 2; va_arg(ap, char *) != NULL; i++)
        !            53:                ;
        !            54:        va_end(ap);
        !            55:
        !            56:        argv = alloca (i * sizeof (char *));
        !            57:
        !            58:        va_start(ap, arg);
        !            59:        argv[0] = (char *) arg;
        !            60:        for (i = 1; (argv[i] = (char *) va_arg(ap, char *)) != NULL; i++)
        !            61:                ;
        !            62:        va_end(ap);
        !            63:
        !            64:        r = execve(name, argv, environ);
        !            65:        return (r);
        !            66: #endif
        !            67: }