1 /* $NetBSD: copy.c,v 1.2 2009/10/21 16:07:00 snj Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 Jared D. McNeill <jmcneill@invisible.ca> 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: copy.c,v 1.2 2009/10/21 16:07:00 snj Exp $"); 31 32 #include <sys/types.h> 33 #include <sys/systm.h> 34 35 int 36 copyin(const void *uaddr, void *kaddr, size_t len) 37 { 38 memcpy(kaddr, uaddr, len); 39 return 0; 40 } 41 42 int 43 copyout(const void *kaddr, void *uaddr, size_t len) 44 { 45 memcpy(uaddr, kaddr, len); 46 return 0; 47 } 48 49 int 50 copyinstr(const void *uaddr, void *kaddr, size_t len, size_t *done) 51 { 52 strncpy(kaddr, uaddr, len); 53 if (done) 54 *done = min(strlen(uaddr), len); 55 return 0; 56 } 57 58 int 59 copyoutstr(const void *kaddr, void *uaddr, size_t len, size_t *done) 60 { 61 strncpy(uaddr, kaddr, len); 62 if (done) 63 *done = min(strlen(kaddr), len); 64 return 0; 65 } 66 67 int 68 copystr(const void *kfaddr, void *kdaddr, size_t len, size_t *done) 69 { 70 strncpy(kdaddr, kfaddr, len); 71 if (done) 72 *done = min(strlen(kfaddr), len); 73 return 0; 74 } 75 76 int 77 kcopy(const void *src, void *dst, size_t len) 78 { 79 memcpy(dst, src, len); 80 return 0; 81 } 82 83 int 84 fuswintr(const void *base) 85 { 86 return *(const short *)base; 87 } 88 89 int 90 suswintr(void *base, short c) 91 { 92 *(short *)base = c; 93 return 0; 94 } 95 96 int 97 subyte(void *base, int c) 98 { 99 *(char *)base = c; 100 return 0; 101 } 102 103 int 104 suword(void *base, long c) 105 { 106 *(long *)base = c; 107 return 0; 108 } 109