141949Sbostic /*- 241949Sbostic * Copyright (c) 1990 The Regents of the University of California. 334479Sbostic * All rights reserved. 434479Sbostic * 541949Sbostic * This code is derived from software contributed to Berkeley by 641949Sbostic * Chris Torek. 741949Sbostic * 841949Sbostic * %sccs.include.redist.c% 924195Skre */ 1024195Skre 1126526Sdonn #if defined(LIBC_SCCS) && !defined(lint) 12*46144Sbostic static char sccsid[] = "@(#)memchr.c 5.6 (Berkeley) 01/26/91"; 1334479Sbostic #endif /* LIBC_SCCS and not lint */ 1424195Skre 15*46144Sbostic #include <sys/cdefs.h> 1641949Sbostic #include <string.h> 1741949Sbostic 1841949Sbostic void * 1924195Skre memchr(s, c, n) 2041949Sbostic const void *s; 2141949Sbostic register unsigned char c; 2241949Sbostic register size_t n; 2324195Skre { 2441949Sbostic if (n != 0) { 2541949Sbostic register const unsigned char *p = s; 2641949Sbostic 2741949Sbostic do { 2841949Sbostic if (*p++ == c) 2941949Sbostic return ((void *)(p - 1)); 3041949Sbostic } while (--n != 0); 3141949Sbostic } 3241949Sbostic return (NULL); 3324195Skre } 34