| | 1 | /* |
| | 2 | * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * The contents of this file constitute Original Code as defined in and |
| | 7 | * are subject to the Apple Public Source License Version 1.1 (the |
| | 8 | * "License"). You may not use this file except in compliance with the |
| | 9 | * License. Please obtain a copy of the License at |
| | 10 | * http://www.apple.com/publicsource and read it before using this file. |
| | 11 | * |
| | 12 | * This Original Code and all software distributed under the License are |
| | 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| | 17 | * License for the specific language governing rights and limitations |
| | 18 | * under the License. |
| | 19 | * |
| | 20 | * @APPLE_LICENSE_HEADER_END@ |
| | 21 | */ |
| | 22 | /* |
| | 23 | * Copyright (c) 1997 by Apple Computer, Inc., all rights reserved |
| | 24 | * Copyright (c) 1993 NeXT Computer, Inc. |
| | 25 | * |
| | 26 | */ |
| | 27 | |
| | 28 | #include <sys/param.h> |
| | 29 | #include <sys/systm.h> |
| | 30 | #include <sys/ioctl.h> |
| | 31 | #include <sys/tty.h> |
| | 32 | #include <sys/conf.h> |
| | 33 | #include <sys/proc.h> |
| | 34 | #include <sys/user.h> |
| | 35 | #include <kern/thread.h> |
| | 36 | #include <kern/task.h> |
| | 37 | #include <vm/vm_map.h> |
| | 38 | |
| | 39 | |
| | 40 | /* |
| | 41 | * copy a null terminated string from one point to another in |
| | 42 | * the kernel address space. |
| | 43 | * - no access checks are performed. |
| | 44 | * - if the end of string isn't found before |
| | 45 | * maxlen bytes are copied, return ENAMETOOLONG, |
| | 46 | * indicating an incomplete copy. |
| | 47 | * - otherwise, return 0, indicating success. |
| | 48 | * the number of bytes copied is always returned in lencopied. |
| | 49 | */ |
| | 50 | /* from ppc/fault_copy.c -Titan1T4 VERSION */ |
| | 51 | int |
| | 52 | copystr(const void *vfrom, void *vto, size_t maxlen, size_t *lencopied) |
| | 53 | { |
| | 54 | register unsigned l; |
| | 55 | caddr_t from, to; |
| | 56 | |
| | 57 | from = vfrom; |
| | 58 | to = vto; |
| | 59 | for (l = 0; l < maxlen; l++) |
| | 60 | if ((*to++ = *from++) == '\0') { |
| | 61 | if (lencopied) |
| | 62 | *lencopied = l + 1; |
| | 63 | return 0; |
| | 64 | } |
| | 65 | if (lencopied) |
| | 66 | *lencopied = maxlen; |
| | 67 | return ENAMETOOLONG; |
| | 68 | } |
| | 69 | |
| | 70 | int copywithin(src, dst, count) |
| | 71 | void * src, *dst; |
| | 72 | size_t count; |
| | 73 | { |
| | 74 | bcopy(src,dst,count); |
| | 75 | return 0; |
| | 76 | } |
| | 77 | |
| | 78 | void * |
| | 79 | get_bsduthreadarg(thread_t th) |
| | 80 | { |
| | 81 | struct uthread *ut; |
| | 82 | ut = get_bsdthread_info(th); |
| | 83 | return((void *)(ut->uu_arg)); |
| | 84 | } |
| | 85 | |
| | 86 | int * |
| | 87 | get_bsduthreadrval(thread_t th) |
| | 88 | { |
| | 89 | struct uthread *ut; |
| | 90 | ut = get_bsdthread_info(th); |
| | 91 | return(&ut->uu_rval[0]); |
| | 92 | } |
| | 93 | |
projects / apple / xnu.git / blame_incremental