/** Copyright 2001, Travis Geiselbrecht. All rights reserved.* Distributed under the terms of the NewOS License.*/#include <string.h>#include <strings.h>#include <sys/types.h>char*strchr(const char* s, int c){for (; *s != (char)c; ++s)if (*s == '\0')return NULL;return (char*)s;}char*index(const char* s, int c){return strchr(s, c);}