]>
Commit | Line | Data |
---|---|---|
a482b5a5 RM |
1 | /* Copyright (C) 1995 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If | |
16 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
17 | Cambridge, MA 02139, USA. */ | |
18 | ||
19 | #include <mbstr.h> | |
20 | #include <stdlib.h> | |
21 | ||
22 | ||
23 | /* Copy no more than N characters of SRC to DEST. */ | |
24 | char * | |
25 | mbsncpy (dest, src, n) | |
26 | char *dest; | |
27 | const char *src; | |
28 | size_t n; | |
29 | { | |
30 | const char * const s = src; | |
31 | size_t len = 0; | |
32 | int clen = 0; | |
33 | ||
34 | if (n == 0) | |
35 | { | |
36 | dest[0] = '\0'; /* '\0' is the multibyte representation of L'\0' */ | |
37 | return dest; | |
38 | } | |
39 | ||
40 | /* Reset multibyte characters to their initial state. */ | |
41 | (void) mblen ((char *) NULL, 0); | |
42 | ||
43 | do | |
44 | { | |
45 | src += clen; | |
46 | clen = mblen (src, MB_CUR_MAX); | |
47 | } | |
48 | while (clen > 0 && ++len < n); | |
49 | ||
50 | (void) memcpy ((void *) dest, (void *) s, src - s); | |
51 | dest[src - s] = '\0'; /* '\0' is the multibyte representation of L'\0' */ | |
52 | ||
53 | return dest; | |
54 | } | |
55 |