diff options
Diffstat (limited to 'usr/src/lib/libc/port/gen/memmem.c')
| -rw-r--r-- | usr/src/lib/libc/port/gen/memmem.c | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/usr/src/lib/libc/port/gen/memmem.c b/usr/src/lib/libc/port/gen/memmem.c deleted file mode 100644 index a0f396e7c4..0000000000 --- a/usr/src/lib/libc/port/gen/memmem.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ - -/* - * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. - */ - -/* - * Copyright (c) 2005 Pascal Gloor <pascal.gloor@spale.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <string.h> - -/* - * Find the first occurrence of the byte string s in byte string l. - */ - -void * -memmem(const void *l, size_t l_len, const void *s, size_t s_len) -{ - char *cur, *last; - const char *cl = (const char *)l; - const char *cs = (const char *)s; - - /* we need something to compare */ - if (l_len == 0 || s_len == 0) - return (NULL); - - /* "s" must be smaller or equal to "l" */ - if (l_len < s_len) - return (NULL); - - /* special case where s_len == 1 */ - if (s_len == 1) - return (memchr(l, (int)*cs, l_len)); - - /* the last position where its possible to find "s" in "l" */ - last = (char *)cl + l_len - s_len; - - for (cur = (char *)cl; cur <= last; cur++) - if (cur[0] == cs[0] && memcmp(cur, cs, s_len) == 0) - return (cur); - - return (NULL); -} |