usr/test/console/console.c

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main
   1 /*
   2  * Copyright (c) 2005, Kohsuke Ohtani
   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. Neither the name of the author nor the names of any co-contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29 
  30 /*
  31  * console.c - test program for console driver
  32  */
  33 
  34 #include <sys/prex.h>
  35 #include <string.h>
  36 
  37 int
  38 main(int argc, char *argv[])
  39 {
  40         device_t console_dev;
  41         char buf[] = "ABCDEFGHIJKLMN";
  42         int i, error;
  43         size_t len;
  44 
  45         sys_log("console test program\n");
  46         error = device_open("console", 0, &console_dev);
  47         if (error)
  48                 sys_log("device open error!\n");
  49 
  50         /*
  51          * Display 'ABCDE'
  52          */
  53         len = 5;
  54         device_write(console_dev, buf, &len, 0);
  55 
  56         /*
  57          * Display 'AAAA...'
  58          */
  59         len = 1;
  60         for (i = 0; i < 100; i++)
  61                 device_write(console_dev, buf, &len, 0);
  62 
  63         /*
  64          * Try to pass invalid pointer.
  65          * It will cause a fault, and get EFAULT.
  66          */
  67         sys_log("\ntest an invalid pointer.\n");
  68         len = 100;
  69         error = device_write(console_dev, 0, &len, 0);
  70         if (error)
  71                 sys_log("OK!\n");
  72         else
  73                 sys_log("Bad!\n");
  74 
  75         error = device_close(console_dev);
  76         if (error)
  77                 sys_log("device close error!\n");
  78 
  79         sys_log("Completed\n");
  80         return 0;
  81 }
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root/usr/test/console/console.c

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