mirror of https://github.com/openzfs/zfs.git
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or https://opensource.org/licenses/CDDL-1.0.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
|
|
/*
|
|
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
#ifndef HAVE_STRLCAT
|
|
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
|
|
/*
|
|
* Appends src to the dstsize buffer at dst. The append will never
|
|
* overflow the destination buffer and the buffer will always be null
|
|
* terminated. Never reference beyond &dst[dstsize-1] when computing
|
|
* the length of the pre-existing string.
|
|
*/
|
|
|
|
size_t
|
|
strlcat(char *dst, const char *src, size_t dstsize)
|
|
{
|
|
char *df = dst;
|
|
size_t left = dstsize;
|
|
size_t l1;
|
|
size_t l2 = strlen(src);
|
|
size_t copied;
|
|
|
|
while (left-- != 0 && *df != '\0')
|
|
df++;
|
|
l1 = df - dst;
|
|
if (dstsize == l1)
|
|
return (l1 + l2);
|
|
|
|
copied = l1 + l2 >= dstsize ? dstsize - l1 - 1 : l2;
|
|
(void) memcpy(dst + l1, src, copied);
|
|
dst[l1+copied] = '\0';
|
|
|
|
return (l1 + l2);
|
|
}
|
|
|
|
#endif
|