1 #ifndef HAVE_STRLCPY 2 3 /* 4 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 * 18 * $OpenBSD: strlcpy.c,v 1.11 2006/05/05 15:27:38 millert Exp $ 19 * $FreeBSD$ 20 * $DragonFly: src/lib/libc/string/strlcpy.c,v 1.4 2005/09/18 16:32:34 asmodai Exp $ 21 */ 22 23 #include "dfcompat.h" 24 25 #include <sys/types.h> 26 #include <string.h> 27 28 /* 29 * Copy src to string dst of size siz. At most siz-1 characters 30 * will be copied. Always NUL terminates (unless siz == 0). 31 * Returns strlen(src); if retval >= siz, truncation occurred. 32 */ 33 size_t 34 strlcpy(char *dst, const char *src, size_t siz) 35 { 36 char *d = dst; 37 const char *s = src; 38 size_t n = siz; 39 40 /* Copy as many bytes as will fit */ 41 if (n != 0) { 42 while (--n != 0) { 43 if ((*d++ = *s++) == '\0') 44 break; 45 } 46 } 47 48 /* Not enough room in dst, add NUL and traverse rest of src */ 49 if (n == 0) { 50 if (siz != 0) 51 *d = '\0'; /* NUL-terminate dst */ 52 while (*s++) 53 ; 54 } 55 56 return(s - src - 1); /* count does not include NUL */ 57 } 58 59 #endif /* !HAVE_STRLCPY */ 60 61 #ifndef HAVE_REALLOCF 62 63 /*- 64 * Copyright (c) 1998, M. Warner Losh <imp@freebsd.org> 65 * All rights reserved. 66 * 67 * Redistribution and use in source and binary forms, with or without 68 * modification, are permitted provided that the following conditions 69 * are met: 70 * 1. Redistributions of source code must retain the above copyright 71 * notice, this list of conditions and the following disclaimer. 72 * 2. Redistributions in binary form must reproduce the above copyright 73 * notice, this list of conditions and the following disclaimer in the 74 * documentation and/or other materials provided with the distribution. 75 * 76 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 77 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 78 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 79 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 80 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 81 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 82 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 83 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 84 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 85 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 86 * SUCH DAMAGE. 87 * 88 * $FreeBSD$ 89 * $DragonFly: src/lib/libc/stdlib/reallocf.c,v 1.2 2003/06/17 04:26:46 dillon Exp $ 90 */ 91 #include <stdlib.h> 92 93 void * 94 reallocf(void *ptr, size_t size) 95 { 96 void *nptr; 97 98 nptr = realloc(ptr, size); 99 if (!nptr && ptr) 100 free(ptr); 101 return (nptr); 102 } 103 104 #endif /* !HAVE_REALLOCF */ 105 106 #ifndef HAVE_GETPROGNAME 107 108 #ifdef __GLIBC__ 109 110 #include <errno.h> 111 112 const char * 113 getprogname(void) 114 { 115 return (program_invocation_short_name); 116 } 117 118 #else /* __GLIBC__ */ 119 #error "no getprogname implementation available" 120 #endif 121 122 #endif /* !HAVE_GETPROGNAME */ 123