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authortshiozak <tshiozak@FreeBSD.org>2001-05-15 06:01:19 +0000
committertshiozak <tshiozak@FreeBSD.org>2001-05-15 06:01:19 +0000
commitdd1bc4d27449baa2c5ade3c886fb7cfc1d637bf6 (patch)
tree3bd1fe6ad622c32afa24272badb9199c7c09a1e6 /lib/libc/string/wcslcat.c
parentb5081db59bef2818c352f77a726f2d105b638847 (diff)
downloadFreeBSD-src-dd1bc4d27449baa2c5ade3c886fb7cfc1d637bf6.zip
FreeBSD-src-dd1bc4d27449baa2c5ade3c886fb7cfc1d637bf6.tar.gz
initial import of locale insensitive wcs* and wmem* functions.
Obtained from: NetBSD and Citrus.
Diffstat (limited to 'lib/libc/string/wcslcat.c')
-rw-r--r--lib/libc/string/wcslcat.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/lib/libc/string/wcslcat.c b/lib/libc/string/wcslcat.c
new file mode 100644
index 0000000..d6c669a
--- /dev/null
+++ b/lib/libc/string/wcslcat.c
@@ -0,0 +1,81 @@
+/* $NetBSD: wcslcat.c,v 1.1 2000/12/23 23:14:36 itojun Exp $ */
+/* from OpenBSD: strlcat.c,v 1.3 2000/11/24 11:10:02 itojun Exp */
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: wcslcat.c,v 1.1 2000/12/23 23:14:36 itojun Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <assert.h>
+#include <wchar.h>
+
+/*
+ * Appends src to string dst of size siz (unlike wcsncat, siz is the
+ * full size of dst, not space left). At most siz-1 characters
+ * will be copied. Always NUL terminates (unless siz == 0).
+ * Returns wcslen(initial dst) + wcslen(src); if retval >= siz,
+ * truncation occurred.
+ */
+size_t
+wcslcat(dst, src, siz)
+ wchar_t *dst;
+ const wchar_t *src;
+ size_t siz;
+{
+ wchar_t *d = dst;
+ const wchar_t *s = src;
+ size_t n = siz;
+ size_t dlen;
+
+ _DIAGASSERT(dst != NULL);
+ _DIAGASSERT(src != NULL);
+
+ /* Find the end of dst and adjust bytes left but don't go past end */
+ while (*d != '\0' && n-- != 0)
+ d++;
+ dlen = d - dst;
+ n = siz - dlen;
+
+ if (n == 0)
+ return(dlen + wcslen(s));
+ while (*s != '\0') {
+ if (n != 1) {
+ *d++ = *s;
+ n--;
+ }
+ s++;
+ }
+ *d = '\0';
+
+ return(dlen + (s - src)); /* count does not include NUL */
+}
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