1*61d06d6bSBaptiste Daroussin #include "config.h" 2*61d06d6bSBaptiste Daroussin 3*61d06d6bSBaptiste Daroussin #if HAVE_STRLCAT 4*61d06d6bSBaptiste Daroussin 5*61d06d6bSBaptiste Daroussin int dummy; 6*61d06d6bSBaptiste Daroussin 7*61d06d6bSBaptiste Daroussin #else 8*61d06d6bSBaptiste Daroussin 9*61d06d6bSBaptiste Daroussin /* $OpenBSD: strlcat.c,v 1.13 2005/08/08 08:05:37 espie Exp $ */ 10*61d06d6bSBaptiste Daroussin 11*61d06d6bSBaptiste Daroussin /* 12*61d06d6bSBaptiste Daroussin * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> 13*61d06d6bSBaptiste Daroussin * 14*61d06d6bSBaptiste Daroussin * Permission to use, copy, modify, and distribute this software for any 15*61d06d6bSBaptiste Daroussin * purpose with or without fee is hereby granted, provided that the above 16*61d06d6bSBaptiste Daroussin * copyright notice and this permission notice appear in all copies. 17*61d06d6bSBaptiste Daroussin * 18*61d06d6bSBaptiste Daroussin * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 19*61d06d6bSBaptiste Daroussin * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 20*61d06d6bSBaptiste Daroussin * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 21*61d06d6bSBaptiste Daroussin * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 22*61d06d6bSBaptiste Daroussin * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 23*61d06d6bSBaptiste Daroussin * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 24*61d06d6bSBaptiste Daroussin * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 25*61d06d6bSBaptiste Daroussin */ 26*61d06d6bSBaptiste Daroussin 27*61d06d6bSBaptiste Daroussin #include <sys/types.h> 28*61d06d6bSBaptiste Daroussin #include <string.h> 29*61d06d6bSBaptiste Daroussin 30*61d06d6bSBaptiste Daroussin /* 31*61d06d6bSBaptiste Daroussin * Appends src to string dst of size siz (unlike strncat, siz is the 32*61d06d6bSBaptiste Daroussin * full size of dst, not space left). At most siz-1 characters 33*61d06d6bSBaptiste Daroussin * will be copied. Always NUL terminates (unless siz <= strlen(dst)). 34*61d06d6bSBaptiste Daroussin * Returns strlen(src) + MIN(siz, strlen(initial dst)). 35*61d06d6bSBaptiste Daroussin * If retval >= siz, truncation occurred. 36*61d06d6bSBaptiste Daroussin */ 37*61d06d6bSBaptiste Daroussin size_t 38*61d06d6bSBaptiste Daroussin strlcat(char *dst, const char *src, size_t siz) 39*61d06d6bSBaptiste Daroussin { 40*61d06d6bSBaptiste Daroussin char *d = dst; 41*61d06d6bSBaptiste Daroussin const char *s = src; 42*61d06d6bSBaptiste Daroussin size_t n = siz; 43*61d06d6bSBaptiste Daroussin size_t dlen; 44*61d06d6bSBaptiste Daroussin 45*61d06d6bSBaptiste Daroussin /* Find the end of dst and adjust bytes left but don't go past end */ 46*61d06d6bSBaptiste Daroussin while (n-- != 0 && *d != '\0') 47*61d06d6bSBaptiste Daroussin d++; 48*61d06d6bSBaptiste Daroussin dlen = d - dst; 49*61d06d6bSBaptiste Daroussin n = siz - dlen; 50*61d06d6bSBaptiste Daroussin 51*61d06d6bSBaptiste Daroussin if (n == 0) 52*61d06d6bSBaptiste Daroussin return(dlen + strlen(s)); 53*61d06d6bSBaptiste Daroussin while (*s != '\0') { 54*61d06d6bSBaptiste Daroussin if (n != 1) { 55*61d06d6bSBaptiste Daroussin *d++ = *s; 56*61d06d6bSBaptiste Daroussin n--; 57*61d06d6bSBaptiste Daroussin } 58*61d06d6bSBaptiste Daroussin s++; 59*61d06d6bSBaptiste Daroussin } 60*61d06d6bSBaptiste Daroussin *d = '\0'; 61*61d06d6bSBaptiste Daroussin 62*61d06d6bSBaptiste Daroussin return(dlen + (s - src)); /* count does not include NUL */ 63*61d06d6bSBaptiste Daroussin } 64*61d06d6bSBaptiste Daroussin 65*61d06d6bSBaptiste Daroussin #endif 66