1 /*-
2 * Copyright (C) 1995 Wolfgang Solfrank.
3 * Copyright (C) 1995 TooLs GmbH.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by TooLs GmbH.
17 * 4. The name of TooLs GmbH may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $NetBSD: copystr.c,v 1.3 2000/06/08 06:47:17 kleink Exp $
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD: stable/9/sys/powerpc/powerpc/copystr.c 113038 2003-04-03 21:36:33Z obrien $");
36
37 #include <sys/param.h>
38 #include <sys/errno.h>
39 #include <sys/systm.h>
40
41 /*
42 * Emulate copyinstr.
43 */
44 int
copystr(kfaddr,kdaddr,len,done)45 copystr(kfaddr, kdaddr, len, done)
46 const void *kfaddr;
47 void *kdaddr;
48 size_t len;
49 size_t *done;
50 {
51 const u_char *kfp = kfaddr;
52 u_char *kdp = kdaddr;
53 size_t l;
54 int rv;
55
56 rv = ENAMETOOLONG;
57 for (l = 0; len-- > 0; l++) {
58 if (!(*kdp++ = *kfp++)) {
59 l++;
60 rv = 0;
61 break;
62 }
63 }
64 if (done != NULL) {
65 *done = l;
66 }
67 return rv;
68 }
69