OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [newlib/] [libc/] [string/] [wcslcpy.c] - Blame information for rev 816

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 148 jeremybenn
/*
2
FUNCTION
3
        <<wcslcpy>>---copy a wide-character string to specified length
4
 
5
ANSI_SYNOPSIS
6
        #include <wchar.h>
7
        size_t wcslcpy(wchar_t *<[dst]>, const wchar_t *<[src]>, size_t <[siz]>);
8
 
9
TRAD_SYNOPSIS
10
        #include <wchar.h>
11
        size_t wcslcpy(<[dst]>, <[src]>, <[siz]>)
12
        wchar_t *<[dst]>;
13
        const wchar_t *<[src]>;
14
        size_t <[siz]>;
15
 
16
DESCRIPTION
17
        <<wcslcpy>> copies wide characters from <[src]> to <[dst]>
18
        such that up to <[siz]> - 1 characters are copied.  A
19
        terminating null is appended to the result, unless <[siz]>
20
        is zero.
21
 
22
RETURNS
23
        <<wcslcpy>> returns the number of wide characters in <[src]>,
24
        not including the terminating null wide character.  If the
25
        return value is greater than or equal to <[siz]>, then
26
        not all wide characters were copied from <[src]> and truncation
27
        occurred.
28
 
29
PORTABILITY
30
No supporting OS subroutines are required.
31
*/
32
 
33
/*      $NetBSD: wcslcpy.c,v 1.1 2000/12/23 23:14:36 itojun Exp $       */
34
/*      from OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp   */
35
 
36
/*
37
 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
38
 * All rights reserved.
39
 *
40
 * Redistribution and use in source and binary forms, with or without
41
 * modification, are permitted provided that the following conditions
42
 * are met:
43
 * 1. Redistributions of source code must retain the above copyright
44
 *    notice, this list of conditions and the following disclaimer.
45
 * 2. Redistributions in binary form must reproduce the above copyright
46
 *    notice, this list of conditions and the following disclaimer in the
47
 *    documentation and/or other materials provided with the distribution.
48
 * 3. The name of the author may not be used to endorse or promote products
49
 *    derived from this software without specific prior written permission.
50
 *
51
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
52
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
53
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
54
 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
55
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
56
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
57
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
58
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
59
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
60
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61
 */
62
 
63
#include <_ansi.h>
64
#include <wchar.h>
65
 
66
/*
67
 * Copy src to string dst of size siz.  At most siz-1 characters
68
 * will be copied.  Always NUL terminates (unless siz == 0).
69
 * Returns wcslen(src); if retval >= siz, truncation occurred.
70
 */
71
size_t
72
_DEFUN (wcslcpy, (dst, src, siz),
73
        wchar_t * dst _AND
74
        _CONST wchar_t * src _AND
75
        size_t siz)
76
{
77
  wchar_t *d = dst;
78
  _CONST wchar_t *s = src;
79
  size_t n = siz;
80
 
81
  /* Copy as many bytes as will fit */
82
  if (n != 0 && --n != 0)
83
    {
84
      do
85
        {
86
          if ((*d++ = *s++) == 0)
87
            break;
88
        }
89
      while (--n != 0);
90
    }
91
 
92
  /* Not enough room in dst, add NUL and traverse rest of src */
93
  if (n == 0)
94
    {
95
      if (siz != 0)
96
        *d = '\0';              /* NUL-terminate dst */
97
      while (*s++)
98
        ;
99
    }
100
 
101
  return (s - src - 1);         /* count does not include NUL */
102
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.