netbsd32_execve.c revision 1.31
1/* $NetBSD: netbsd32_execve.c,v 1.31 2007/12/20 23:03:01 dsl Exp $ */ 2 3/* 4 * Copyright (c) 1998, 2001 Matthew R. Green 5 * 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31#include <sys/cdefs.h> 32 33__KERNEL_RCSID(0, "$NetBSD: netbsd32_execve.c,v 1.31 2007/12/20 23:03:01 dsl Exp $"); 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <sys/mount.h> 38#include <sys/stat.h> 39#include <sys/vnode.h> 40#include <sys/file.h> 41#include <sys/filedesc.h> 42#include <sys/syscallargs.h> 43#include <sys/proc.h> 44#include <sys/exec.h> 45 46#include <compat/netbsd32/netbsd32.h> 47#include <compat/netbsd32/netbsd32_syscall.h> 48#include <compat/netbsd32/netbsd32_syscallargs.h> 49 50static int 51netbsd32_execve_fetch_element(char * const *array, size_t index, char **value) 52{ 53 int error; 54 netbsd32_charp const *a32 = (void const *)array; 55 netbsd32_charp e; 56 57 error = copyin(a32 + index, &e, sizeof(e)); 58 if (error) 59 return error; 60 *value = (char *)NETBSD32PTR64(e); 61 return 0; 62} 63 64int 65netbsd32_execve(struct lwp *l, const struct netbsd32_execve_args *uap, register_t *retval) 66{ 67 /* { 68 syscallarg(const netbsd32_charp) path; 69 syscallarg(netbsd32_charpp) argp; 70 syscallarg(netbsd32_charpp) envp; 71 } */ 72 const char *path = SCARG_P32(uap, path); 73 74 return execve1(l, path, SCARG_P32(uap, argp), 75 SCARG_P32(uap, envp), netbsd32_execve_fetch_element); 76} 77