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isqemu.h revision 1.3.8.2 
      1  1.3.8.2  yamt /*	$NetBSD: isqemu.h,v 1.3.8.2 2014/05/22 11:42:20 yamt Exp $	*/
      2  1.3.8.2  yamt 
      3  1.3.8.2  yamt /*-
      4  1.3.8.2  yamt  * Copyright (c) 2013 The NetBSD Foundation, Inc.
      5  1.3.8.2  yamt  * All rights reserved.
      6  1.3.8.2  yamt  *
      7  1.3.8.2  yamt  * This code is derived from software contributed to The NetBSD Foundation
      8  1.3.8.2  yamt  * by Christos Zoulas.
      9  1.3.8.2  yamt  *
     10  1.3.8.2  yamt  * Redistribution and use in source and binary forms, with or without
     11  1.3.8.2  yamt  * modification, are permitted provided that the following conditions
     12  1.3.8.2  yamt  * are met:
     13  1.3.8.2  yamt  * 1. Redistributions of source code must retain the above copyright
     14  1.3.8.2  yamt  *    notice, this list of conditions and the following disclaimer.
     15  1.3.8.2  yamt  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.3.8.2  yamt  *    notice, this list of conditions and the following disclaimer in the
     17  1.3.8.2  yamt  *    documentation and/or other materials provided with the distribution.
     18  1.3.8.2  yamt  * 3. Neither the name of The NetBSD Foundation nor the names of its
     19  1.3.8.2  yamt  *    contributors may be used to endorse or promote products derived
     20  1.3.8.2  yamt  *    from this software without specific prior written permission.
     21  1.3.8.2  yamt  *
     22  1.3.8.2  yamt  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     23  1.3.8.2  yamt  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     24  1.3.8.2  yamt  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     25  1.3.8.2  yamt  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     26  1.3.8.2  yamt  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     27  1.3.8.2  yamt  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     28  1.3.8.2  yamt  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     29  1.3.8.2  yamt  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     30  1.3.8.2  yamt  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     31  1.3.8.2  yamt  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     32  1.3.8.2  yamt  * POSSIBILITY OF SUCH DAMAGE.
     33  1.3.8.2  yamt  */
     34  1.3.8.2  yamt #include <sys/param.h>
     35  1.3.8.2  yamt #include <sys/sysctl.h>
     36  1.3.8.2  yamt #include <stdbool.h>
     37  1.3.8.2  yamt #include <string.h>
     38  1.3.8.2  yamt #include <errno.h>
     39  1.3.8.2  yamt #include <err.h>
     40  1.3.8.2  yamt 
     41  1.3.8.2  yamt static __inline bool
     42  1.3.8.2  yamt isQEMU(void) {
     43  1.3.8.2  yamt #if defined(__i386__) || defined(__x86_64__)
     44  1.3.8.2  yamt 	char name[1024];
     45  1.3.8.2  yamt 	size_t len = sizeof(name);
     46  1.3.8.2  yamt 
     47  1.3.8.2  yamt 	if (sysctlbyname("machdep.cpu_brand", name, &len, NULL, 0) == -1) {
     48  1.3.8.2  yamt 		if (errno == ENOENT)
     49  1.3.8.2  yamt 			return false;
     50  1.3.8.2  yamt 		err(EXIT_FAILURE, "sysctl");
     51  1.3.8.2  yamt 	}
     52  1.3.8.2  yamt 	return strstr(name, "QEMU") != NULL;
     53  1.3.8.2  yamt #else
     54  1.3.8.2  yamt 	return false;
     55  1.3.8.2  yamt #endif
     56  1.3.8.2  yamt }
     57  1.3.8.2  yamt 
     58  1.3.8.2  yamt #ifdef TEST
     59  1.3.8.2  yamt int
     60  1.3.8.2  yamt main(void) {
     61  1.3.8.2  yamt 	return isQEMU();
     62  1.3.8.2  yamt }
     63  1.3.8.2  yamt #endif
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