1255365Sdes/*- 2255365Sdes * Copyright (c) 2011-2012 Dag-Erling Sm��rgrav 3255365Sdes * All rights reserved. 4255365Sdes * 5255365Sdes * Redistribution and use in source and binary forms, with or without 6255365Sdes * modification, are permitted provided that the following conditions 7255365Sdes * are met: 8255365Sdes * 1. Redistributions of source code must retain the above copyright 9255365Sdes * notice, this list of conditions and the following disclaimer. 10255365Sdes * 2. Redistributions in binary form must reproduce the above copyright 11255365Sdes * notice, this list of conditions and the following disclaimer in the 12255365Sdes * documentation and/or other materials provided with the distribution. 13255365Sdes * 3. The name of the author may not be used to endorse or promote 14255365Sdes * products derived from this software without specific prior written 15255365Sdes * permission. 16255365Sdes * 17255365Sdes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18255365Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19255365Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20255365Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21255365Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22255365Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23255365Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24255365Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25255365Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26255365Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27255365Sdes * SUCH DAMAGE. 28255365Sdes * 29255365Sdes * $Id: openpam_strlcat.c 648 2013-03-05 17:54:27Z des $ 30255365Sdes */ 31255365Sdes 32255365Sdes#ifdef HAVE_CONFIG_H 33255365Sdes# include "config.h" 34255365Sdes#endif 35255365Sdes 36255365Sdes#ifndef HAVE_STRLCAT 37255365Sdes 38255365Sdes#include <stddef.h> 39255365Sdes 40255365Sdes#include "openpam_strlcat.h" 41255365Sdes 42255365Sdes/* like strcat(3), but always NUL-terminates; returns strlen(src) */ 43255365Sdessize_t 44255365Sdesopenpam_strlcat(char *dst, const char *src, size_t size) 45255365Sdes{ 46255365Sdes size_t len; 47255365Sdes 48255365Sdes for (len = 0; *dst && size > 1; ++len, --size) 49255365Sdes dst++; 50255365Sdes for (; *src && size > 1; ++len, --size) 51255365Sdes *dst++ = *src++; 52255365Sdes *dst = '\0'; 53255365Sdes while (*src) 54255365Sdes ++len, ++src; 55255365Sdes return (len); 56255365Sdes} 57255365Sdes 58255365Sdes#endif 59