| 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: src/lib/libc/string/strlcpy.c,v 1.10 2008/10/19 10:11:35 delphij Exp $ |
| 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: src/lib/libc/stdlib/reallocf.c,v 1.3 1999/08/28 00:01:37 peter Exp $ |
| 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 */ |