| /* |
| * 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 http://www.opensolaris.org/os/licensing. |
| * 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 |