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scoutos / prex-0.9.0 / usr / test / console / console.c @ 03e9c04a

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/*
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 * Copyright (c) 2005, Kohsuke Ohtani
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the author nor the names of any co-contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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/*
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 * console.c - test program for console driver
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 */
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#include <sys/prex.h>
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#include <string.h>
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int
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main(int argc, char *argv[])
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{
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        device_t console_dev;
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        char buf[] = "ABCDEFGHIJKLMN";
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        int i, error;
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        size_t len;
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        sys_log("console test program\n");
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        error = device_open("console", 0, &console_dev);
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        if (error)
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                sys_log("device open error!\n");
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        /*
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         * Display 'ABCDE'
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         */
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        len = 5;
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        device_write(console_dev, buf, &len, 0);
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        /*
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         * Display 'AAAA...'
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         */
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        len = 1;
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        for (i = 0; i < 100; i++)
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                device_write(console_dev, buf, &len, 0);
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        /*
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         * Try to pass invalid pointer.
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         * It will cause a fault, and get EFAULT.
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         */
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        sys_log("\ntest an invalid pointer.\n");
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        len = 100;
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        error = device_write(console_dev, 0, &len, 0);
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        if (error)
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                sys_log("OK!\n");
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        else
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                sys_log("Bad!\n");
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        error = device_close(console_dev);
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        if (error)
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                sys_log("device close error!\n");
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               sys_log("Completed\n");
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        return 0;
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}