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authorusa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-03-19 08:01:40 +0000
committerusa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-03-19 08:01:40 +0000
commit72408684245a2b1a45cb4e09906436e06b95bf60 (patch)
tree342305969c739b4b5b548fa00118104cebc25601 /missing/strlcat.c
parentde3770d158d8c955e450f1c2359cbc85b7515ebe (diff)
* missing/{strlcat,strlcpy}.c, missing.h: new functions.
* LEGAL: add copyright notice about above files. * configure.in: check whether strlcat and strlcpy are exist or not. * {bcc32,win32,wince}/Makefile.sub: use above files. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12100 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'missing/strlcat.c')
-rw-r--r--missing/strlcat.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/missing/strlcat.c b/missing/strlcat.c
new file mode 100644
index 0000000..b309648
--- /dev/null
+++ b/missing/strlcat.c
@@ -0,0 +1,73 @@
+/* $OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char *rcsid = "$OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left). At most siz-1 characters
+ * will be copied. Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+size_t
+strlcat(dst, src, siz)
+ char *dst;
+ const char *src;
+ size_t siz;
+{
+ register char *d = dst;
+ register const char *s = src;
+ register size_t n = siz;
+ size_t dlen;
+
+ /* Find the end of dst and adjust bytes left but don't go past end */
+ while (n-- != 0 && *d != '\0')
+ d++;
+ dlen = d - dst;
+ n = siz - dlen;
+
+ if (n == 0)
+ return(dlen + strlen(s));
+ while (*s != '\0') {
+ if (n != 1) {
+ *d++ = *s;
+ n--;
+ }
+ s++;
+ }
+ *d = '\0';
+
+ return(dlen + (s - src)); /* count does not include NUL */
+}