/* * strchr --- search a string for a character * * We supply this routine for those systems that aren't standard yet. */ char * strchr (str, c) register const char *str, c; { for (; *str; str++) if (*str == c) return (char *) str; return NULL; } /* * strrchr --- find the last occurrence of a character in a string * * We supply this routine for those systems that aren't standard yet. */ char * strrchr (str, c) register const char *str, c; { register const char *save = NULL; for (; *str; str++) if (*str == c) save = str; return (char *) save; }