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contrib/blacklist/port/strlcat.c
- This file was added.
| Property | Old Value | New Value |
|---|---|---|
| svn:eol-style | null | native \ No newline at end of property |
| svn:keywords | null | FreeBSD=%H \ No newline at end of property |
| svn:mime-type | null | text/plain \ No newline at end of property |
| /* $NetBSD: strlcat.c,v 1.2 2015/01/22 03:48:07 christos Exp $ */ | |||||
| /* $OpenBSD: strlcat.c,v 1.10 2003/04/12 21:56:39 millert Exp $ */ | |||||
| /* | |||||
| * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> | |||||
| * | |||||
| * Permission to use, copy, modify, and distribute this software for any | |||||
| * purpose with or without fee is hereby granted, provided that the above | |||||
| * copyright notice and this permission notice appear in all copies. | |||||
| * | |||||
| * THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL | |||||
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES | |||||
| * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE | |||||
| * FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |||||
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |||||
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |||||
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |||||
| */ | |||||
| #if !defined(_KERNEL) && !defined(_STANDALONE) | |||||
| #if HAVE_CONFIG_H | |||||
| #include "config.h" | |||||
| #endif | |||||
| #include <sys/cdefs.h> | |||||
| #if defined(LIBC_SCCS) && !defined(lint) | |||||
| __RCSID("$NetBSD: strlcat.c,v 1.2 2015/01/22 03:48:07 christos Exp $"); | |||||
| #endif /* LIBC_SCCS and not lint */ | |||||
| #ifdef _LIBC | |||||
| #include "namespace.h" | |||||
| #endif | |||||
| #include <sys/types.h> | |||||
| #include <assert.h> | |||||
| #include <string.h> | |||||
| #ifdef _LIBC | |||||
| # ifdef __weak_alias | |||||
| __weak_alias(strlcat, _strlcat) | |||||
| # endif | |||||
| #endif | |||||
| #else | |||||
| #include <lib/libkern/libkern.h> | |||||
| #endif /* !_KERNEL && !_STANDALONE */ | |||||
| #if !HAVE_STRLCAT | |||||
| /* | |||||
| * Appends src to string dst of size siz (unlike strncat, siz is the | |||||
| * full size of dst, not space left). At most siz-1 characters | |||||
| * will be copied. Always NUL terminates (unless siz <= strlen(dst)). | |||||
| * Returns strlen(src) + MIN(siz, strlen(initial dst)). | |||||
| * If retval >= siz, truncation occurred. | |||||
| */ | |||||
| size_t | |||||
| strlcat(char *dst, const char *src, size_t siz) | |||||
| { | |||||
| #if 1 | |||||
| char *d = dst; | |||||
| const char *s = src; | |||||
| size_t n = siz; | |||||
| size_t dlen; | |||||
| /* Find the end of dst and adjust bytes left but don't go past end */ | |||||
| while (n-- != 0 && *d != '\0') | |||||
| d++; | |||||
| dlen = d - dst; | |||||
| n = siz - dlen; | |||||
| if (n == 0) | |||||
| return(dlen + strlen(s)); | |||||
| while (*s != '\0') { | |||||
| if (n != 1) { | |||||
| *d++ = *s; | |||||
| n--; | |||||
| } | |||||
| s++; | |||||
| } | |||||
| *d = '\0'; | |||||
| return(dlen + (s - src)); /* count does not include NUL */ | |||||
| #else | |||||
| /* | |||||
| * Find length of string in dst (maxing out at siz). | |||||
| */ | |||||
| size_t dlen = strnlen(dst, siz); | |||||
| /* | |||||
| * Copy src into any remaining space in dst (truncating if needed). | |||||
| * Note strlcpy(dst, src, 0) returns strlen(src). | |||||
| */ | |||||
| return dlen + strlcpy(dst + dlen, src, siz - dlen); | |||||
| #endif | |||||
| } | |||||
| #endif | |||||