src/tests/kits/net/sock/pattern.c

   1 /* -*- c-basic-offset: 8; -*-
   2  *
   3  * Copyright (c) 1993 W. Richard Stevens.  All rights reserved.
   4  * Permission to use or modify this software and its documentation only for
   5  * educational purposes and without fee is hereby granted, provided that
   6  * the above copyright notice appear in all copies.  The author makes no
   7  * representations about the suitability of this software for any purpose.
   8  * It is provided "as is" without express or implied warranty.
   9  */
  10
  11 #include        "sock.h"
  12 #include        <ctype.h>
  13
  14 void
  15 pattern(char *ptr, int len)
  16 {
  17         char    c;
  18
  19         c = 0;
  20         while(len-- > 0)  {
  21                 while(isprint((c & 0x7F)) == 0)
  22                         c++;    /* skip over nonprinting characters */
  23                 *ptr++ = (c++ & 0x7F);
  24         }
  25 }