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      1 /* $NetBSD: h_have_puffs.c,v 1.1 2010/07/06 14:06:22 pooka Exp $ */
      2 /*
      3  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     19  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25  * POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <errno.h>
     29 #include <fcntl.h>
     30 #include <stdio.h>
     31 #include <stdlib.h>
     32 #include <unistd.h>
     33 
     34 int
     35 main(void)
     36 {
     37 	int exitcode, fd;
     38 
     39 	fd = open("/dev/puffs", O_RDWR);
     40 	if (fd != -1) {
     41 		printf("yes\n");
     42 		close(fd);
     43 		exitcode = EXIT_SUCCESS;
     44 	} else {
     45 		if (errno == ENXIO) {
     46 			printf("enxio\n");
     47 			exitcode = EXIT_SUCCESS;
     48 		} else if (errno == EACCES) {
     49 			printf("eacces\n");
     50 			exitcode = EXIT_SUCCESS;
     51 		} else {
     52 			printf("failed\n");
     53 			exitcode = EXIT_FAILURE;
     54 		}
     55 	}
     56 
     57 	return exitcode;
     58 }
     59