82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/* $NetBSD: netbsd32_execve.c,v 1.26 2006/03/07 03:32:06 thorpej Exp $ */
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/*
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* Copyright (c) 1998, 2001 Matthew R. Green
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: netbsd32_execve.c,v 1.26 2006/03/07 03:32:06 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/vnode.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
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#include <sys/proc.h>
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#include <sys/exec.h>
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#include <compat/netbsd32/netbsd32.h>
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#include <compat/netbsd32/netbsd32_syscall.h>
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#include <compat/netbsd32/netbsd32_syscallargs.h>
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static int
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netbsd32_execve_fetch_element(char * const *array, size_t index, char **value)
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{
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int error;
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netbsd32_charp const *a32 = (void const *)array;
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netbsd32_charp e;
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error = copyin(a32 + index, &e, sizeof(e));
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if (error)
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return error;
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*value = (char *)NETBSD32PTR64(e);
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return 0;
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}
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int
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netbsd32_execve(struct lwp *l, void *v, register_t *retval)
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{
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struct netbsd32_execve_args /* {
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syscallarg(const netbsd32_charp) path;
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syscallarg(netbsd32_charpp) argp;
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syscallarg(netbsd32_charpp) envp;
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} */ *uap = v;
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caddr_t sg;
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const char *path = NETBSD32PTR64(SCARG(uap, path));
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sg = stackgap_init(l->l_proc, 0);
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CHECK_ALT_EXIST(l, &sg, path);
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return execve1(l, path, NETBSD32PTR64(SCARG(uap, argp)),
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NETBSD32PTR64(SCARG(uap, envp)), netbsd32_execve_fetch_element);
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}
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