1238104Sdes/* from openssh 4.3p2 compat/strlcpy.c */ 2238104Sdes/* 3238104Sdes * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> 4238104Sdes * 5238104Sdes * Permission to use, copy, modify, and distribute this software for any 6238104Sdes * purpose with or without fee is hereby granted, provided that the above 7238104Sdes * copyright notice and this permission notice appear in all copies. 8238104Sdes * 9238104Sdes * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10238104Sdes * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11238104Sdes * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12238104Sdes * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13238104Sdes * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14238104Sdes * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15238104Sdes * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16238104Sdes */ 17238104Sdes 18238104Sdes/* OPENBSD ORIGINAL: lib/libc/string/strlcpy.c */ 19238104Sdes 20238104Sdes#include <ldns/config.h> 21238104Sdes#ifndef HAVE_STRLCPY 22238104Sdes 23238104Sdes#include <sys/types.h> 24238104Sdes#include <string.h> 25238104Sdes 26238104Sdes/* 27238104Sdes * Copy src to string dst of size siz. At most siz-1 characters 28238104Sdes * will be copied. Always NUL terminates (unless siz == 0). 29238104Sdes * Returns strlen(src); if retval >= siz, truncation occurred. 30238104Sdes */ 31238104Sdessize_t 32238104Sdesstrlcpy(char *dst, const char *src, size_t siz) 33238104Sdes{ 34238104Sdes char *d = dst; 35238104Sdes const char *s = src; 36238104Sdes size_t n = siz; 37238104Sdes 38238104Sdes /* Copy as many bytes as will fit */ 39238104Sdes if (n != 0 && --n != 0) { 40238104Sdes do { 41238104Sdes if ((*d++ = *s++) == 0) 42238104Sdes break; 43238104Sdes } while (--n != 0); 44238104Sdes } 45238104Sdes 46238104Sdes /* Not enough room in dst, add NUL and traverse rest of src */ 47238104Sdes if (n == 0) { 48238104Sdes if (siz != 0) 49238104Sdes *d = '\0'; /* NUL-terminate dst */ 50238104Sdes while (*s++) 51238104Sdes ; 52238104Sdes } 53238104Sdes 54238104Sdes return(s - src - 1); /* count does not include NUL */ 55238104Sdes} 56238104Sdes 57238104Sdes#endif /* !HAVE_STRLCPY */ 58