Annotation of sys/arch/powerpc/powerpc/copystr.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: copystr.c,v 1.8 2003/10/15 02:43:09 drahn Exp $ */
2:
3: /*-
4: * Copyright (C) 1995 Wolfgang Solfrank.
5: * Copyright (C) 1995 TooLs GmbH.
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by TooLs GmbH.
19: * 4. The name of TooLs GmbH may not be used to endorse or promote products
20: * derived from this software without specific prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25: * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32: */
33: #include <sys/param.h>
34: #include <sys/errno.h>
35: #include <sys/systm.h>
36:
37: /*
38: * Emulate copystr.
39: */
40: int
41: copystr(const void *kfaddr, void *kdaddr, size_t len, size_t *done)
42: {
43: u_char *kfp = (u_char *)kfaddr;
44: u_char *kdp = kdaddr;
45: size_t l;
46:
47: for (l = 0; len-- > 0; l++) {
48: if (!(*kdp++ = *kfp++)) {
49: if (done)
50: *done = l + 1;
51: return (0);
52: }
53: }
54: if (done)
55: *done = l;
56: return (ENAMETOOLONG);
57: }
CVSweb