124 lines
4.6 KiB
C
124 lines
4.6 KiB
C
/* 08 Nov 1998*/
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/*
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* testmisc.c
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*
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* Test program to call the sample loaded kld device driver.
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*
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* 05 Jun 93 Rajesh Vaidheeswarran Original
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*
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*
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* Copyright (c) 1993 Rajesh Vaidheeswarran.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Rajesh Vaidheeswarran.
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* 4. The name Rajesh Vaidheeswarran may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY RAJESH VAIDHEESWARRAN ``AS IS'' AND ANY
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* 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 RAJESH VAIDHEESWARRAN 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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* Copyright (c) 1993 Terrence R. Lambert.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Terrence R. Lambert.
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* 4. The name Terrence R. Lambert may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY TERRENCE R. LAMBERT ``AS IS'' AND ANY
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* 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 TERRENCE R. LAMBERT 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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* $FreeBSD$
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*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/ioccom.h>
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#define CDEV_IOCTL1 _IOR('C', 1, u_int)
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#define CDEV_DEVICE "cdev"
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static char writestr[] = "Hello kernel!";
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static char buf[512+1];
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int
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main(int argc, char *argv[])
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{
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int kernel_fd;
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int one;
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int len;
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if ((kernel_fd = open("/dev/" CDEV_DEVICE, O_RDWR)) == -1) {
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perror("/dev/" CDEV_DEVICE);
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exit(1);
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}
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/* Send ioctl */
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if (ioctl(kernel_fd, CDEV_IOCTL1, &one) == -1) {
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perror("CDEV_IOCTL1");
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} else {
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printf( "Sent ioctl CDEV_IOCTL1 to device %s%s\n", _PATH_DEV, CDEV_DEVICE);
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}
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len = strlen(writestr) + 1;
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/* Write operation */
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if (write(kernel_fd, writestr, len) == -1) {
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perror("write()");
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} else {
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printf("Written \"%s\" string to device /dev/" CDEV_DEVICE "\n", writestr);
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}
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/* Read operation */
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if (read(kernel_fd, buf, len) == -1) {
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perror("read()");
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} else {
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printf("Read \"%s\" string from device /dev/" CDEV_DEVICE "\n", buf);
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}
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exit(0);
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}
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