FreeBSD/Linux Kernel Cross Reference
sys/compat/netbsd32/netbsd32_execve.c

     /*      $NetBSD: netbsd32_execve.c,v 1.32 2008/05/29 14:51:26 mrg Exp $ */
     
     /*
      * Copyright (c) 1998, 2001 Matthew R. Green
      * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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>
    
    __KERNEL_RCSID(0, "$NetBSD: netbsd32_execve.c,v 1.32 2008/05/29 14:51:26 mrg Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/mount.h>
    #include <sys/stat.h>
    #include <sys/vnode.h>
    #include <sys/file.h>
    #include <sys/filedesc.h>
    #include <sys/syscallargs.h>
    #include <sys/proc.h>
    #include <sys/exec.h>
    
    #include <compat/netbsd32/netbsd32.h>
    #include <compat/netbsd32/netbsd32_syscall.h>
    #include <compat/netbsd32/netbsd32_syscallargs.h>
    
    static int
    netbsd32_execve_fetch_element(char * const *array, size_t index, char **value)
    {
            int error;
            netbsd32_charp const *a32 = (void const *)array;
            netbsd32_charp e;
    
            error = copyin(a32 + index, &e, sizeof(e));
            if (error)
                    return error;
            *value = (char *)NETBSD32PTR64(e);
            return 0;
    }
    
    int
    netbsd32_execve(struct lwp *l, const struct netbsd32_execve_args *uap, register_t *retval)
    {
            /* {
                    syscallarg(const netbsd32_charp) path;
                    syscallarg(netbsd32_charpp) argp;
                    syscallarg(netbsd32_charpp) envp;
            } */
            const char *path = SCARG_P32(uap, path);
    
            return execve1(l, path, SCARG_P32(uap, argp),
                SCARG_P32(uap, envp), netbsd32_execve_fetch_element);
    }

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