1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE 34 * -------------------- ----- ---------------------- 35 * CURRENT PATCH LEVEL: 1 00109 36 * -------------------- ----- ---------------------- 37 * 38 * 01 Mar 93 Tor Egge Fix bogus return value from memccpy() 39 * 40 */ 41 42 #if defined(LIBC_SCCS) && !defined(lint) 43 static char sccsid[] = "@(#)memccpy.c 5.8 (Berkeley) 5/30/91"; 44 #endif /* LIBC_SCCS and not lint */ 45 46 #include <sys/cdefs.h> 47 #include <string.h> 48 49 void * 50 memccpy(t, f, c, n) 51 void *t; 52 const void *f; 53 int c; 54 register size_t n; 55 { 56 57 if (n) { 58 register unsigned char *tp = t; 59 register const unsigned char *fp = f; 60 register unsigned char uc = c; 61 do { 62 if ((*tp++ = *fp++) == uc) 63 return (tp); 64 } while (--n != 0); 65 } 66 return (0); 67 } 68