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 #ifndef lint
35 static const char rcsid[] =
36 "$FreeBSD: releng/5.0/sys/powerpc/powerpc/copystr.c 77957 2001-06-10 02:39:37Z benno $";
37 #endif /* not lint */
38
39 #include <sys/param.h>
40 #include <sys/errno.h>
41 #include <sys/systm.h>
42
43 /*
44 * Emulate copyinstr.
45 */
46 int
47 copystr(kfaddr, kdaddr, len, done)
48 const void *kfaddr;
49 void *kdaddr;
50 size_t len;
51 size_t *done;
52 {
53 const u_char *kfp = kfaddr;
54 u_char *kdp = kdaddr;
55 size_t l;
56 int rv;
57
58 rv = ENAMETOOLONG;
59 for (l = 0; len-- > 0; l++) {
60 if (!(*kdp++ = *kfp++)) {
61 l++;
62 rv = 0;
63 break;
64 }
65 }
66 if (done != NULL) {
67 *done = l;
68 }
69 return rv;
70 }
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