[src/netbsd-1-4]: src/lib/libc/string Pull up revisions 1.1-1.3 (new, request...

[he <he%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/52cc37cbb27c
branches:  netbsd-1-4
changeset: 470730:52cc37cbb27c
user:      he <he%NetBSD.org@localhost>
date:      Wed Jul 05 21:00:21 2000 +0000

description:
Pull up revisions 1.1-1.3 (new, requested by he):
  Add strlcpy() and strlcat() to libc.

diffstat:

 lib/libc/string/strlcpy.c |  71 +++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 71 insertions(+), 0 deletions(-)

diffs (75 lines):

diff -r 919a2b49e796 -r 52cc37cbb27c lib/libc/string/strlcpy.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/libc/string/strlcpy.c Wed Jul 05 21:00:21 2000 +0000
@@ -0,0 +1,71 @@
+/*     $NetBSD: strlcpy.c,v 1.5.10.2 2000/07/05 21:00:21 he Exp $      */
+/*     from OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp   */
+
+/*
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller%courtesan.com@localhost>
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: strlcpy.c,v 1.5.10.2 2000/07/05 21:00:21 he Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+strlcpy(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;
+
+       /* Copy as many bytes as will fit */
+       if (n != 0 && --n != 0) {
+               do {
+                       if ((*d++ = *s++) == 0)
+                               break;
+               } while (--n != 0);
+       }
+
+       /* Not enough room in dst, add NUL and traverse rest of src */
+       if (n == 0) {
+               if (siz != 0)
+                       *d = '\0';              /* NUL-terminate dst */
+               while (*s++)
+                       ;
+       }
+
+       return(s - src - 1);    /* count does not include NUL */
+}