103ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra/*- 2737fdce098f804459a925438e48dd711c31bbc9eElliott Hughes * Copyright (c) 2006, 2008, 2009, 2013 3fc0307d88e2ab13777f102dc63c0d1c968dc8bb2Elliott Hughes * mirabilos <m@mirbsd.org> 403ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> 503ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * 603ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * Permission to use, copy, modify, and distribute this software for any 703ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * purpose with or without fee is hereby granted, provided that the above 803ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * copyright notice and this permission notice appear in all copies. 903ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * 1003ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 1103ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1203ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 1303ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1403ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1503ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 1603ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1703ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra */ 1803ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra 1903ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra#include "sh.h" 2003ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra 21fc0307d88e2ab13777f102dc63c0d1c968dc8bb2Elliott Hughes__RCSID("$MirOS: src/bin/mksh/strlcpy.c,v 1.10 2015/11/29 17:05:02 tg Exp $"); 2203ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra 2303ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra/* 2403ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * Copy src to string dst of size siz. At most siz-1 characters 2503ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * will be copied. Always NUL terminates (unless siz == 0). 2603ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra * Returns strlen(src); if retval >= siz, truncation occurred. 2703ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra */ 28737fdce098f804459a925438e48dd711c31bbc9eElliott Hughes#undef strlcpy 2903ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condrasize_t 3003ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condrastrlcpy(char *dst, const char *src, size_t siz) 3103ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra{ 3203ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra const char *s = src; 3303ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra 3403ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra if (siz == 0) 3503ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra goto traverse_src; 3603ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra 3703ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra /* copy as many chars as will fit */ 3803ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra while (--siz && (*dst++ = *s++)) 3903ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra ; 4003ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra 4103ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra /* not enough room in dst */ 4203ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra if (siz == 0) { 4303ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra /* safe to NUL-terminate dst since we copied <= siz-1 chars */ 4403ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra *dst = '\0'; 4503ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra traverse_src: 4603ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra /* traverse rest of src */ 4703ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra while (*s++) 4803ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra ; 4903ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra } 5003ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra 5103ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra /* count does not include NUL */ 5203ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra return ((size_t)(s - src - 1)); 5303ebf06f4e1112a0e9533b93062d169232c4cbfeGeremy Condra} 54