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authorcvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
committercvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
commiteb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch)
treeedb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libc/string/wcslcat.c
parent247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff)
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This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
Diffstat (limited to 'src/lib/libc/string/wcslcat.c')
-rw-r--r--src/lib/libc/string/wcslcat.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/src/lib/libc/string/wcslcat.c b/src/lib/libc/string/wcslcat.c
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--- a/src/lib/libc/string/wcslcat.c
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1/* $OpenBSD: wcslcat.c,v 1.7 2019/01/25 00:19:25 millert Exp $ */
2
3/*
4 * Copyright (c) 1998, 2015 Todd C. Miller <millert@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#include <sys/types.h>
20#include <wchar.h>
21
22/*
23 * Appends src to string dst of size dsize (unlike strncat, dsize is the
24 * full size of dst, not space left). At most dsize-1 characters
25 * will be copied. Always NUL terminates (unless dsize <= wcslen(dst)).
26 * Returns wcslen(src) + MIN(dsize, wcslen(initial dst)).
27 * If retval >= siz, truncation occurred.
28 */
29size_t
30wcslcat(wchar_t *dst, const wchar_t *src, size_t dsize)
31{
32 const wchar_t *odst = dst;
33 const wchar_t *osrc = src;
34 size_t n = dsize;
35 size_t dlen;
36
37 /* Find the end of dst and adjust bytes left but don't go past end. */
38 while (n-- != 0 && *dst != L'\0')
39 dst++;
40 dlen = dst - odst;
41 n = dsize - dlen;
42
43 if (n-- == 0)
44 return(dlen + wcslen(src));
45 while (*src != L'\0') {
46 if (n != 0) {
47 *dst++ = *src;
48 n--;
49 }
50 src++;
51 }
52 *dst = L'\0';
53
54 return(dlen + (src - osrc)); /* count does not include NUL */
55}
56DEF_WEAK(wcslcat);