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uname.c revision 1.2.4.1 
      1 /*	$NetBSD: uname.c,v 1.2.4.1 1996/09/19 20:04:17 jtc Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #if defined(LIBC_SCCS) && !defined(lint)
     37 #if 0
     38 static char sccsid[] = "@(#)uname.c	8.1 (Berkeley) 1/4/94";
     39 #else
     40 static char rcsid[] = "$NetBSD: uname.c,v 1.2.4.1 1996/09/19 20:04:17 jtc Exp $";
     41 #endif
     42 #endif /* LIBC_SCCS and not lint */
     43 
     44 #include "namespace.h"
     45 #include <sys/param.h>
     46 #include <sys/sysctl.h>
     47 #include <sys/utsname.h>
     48 
     49 #ifdef __weak_alias
     50 __weak_alias(uname,_uname);
     51 #endif
     52 
     53 int
     54 uname(name)
     55 	struct utsname *name;
     56 {
     57 	int mib[2], rval;
     58 	size_t len;
     59 	char *p;
     60 
     61 	rval = 0;
     62 
     63 	mib[0] = CTL_KERN;
     64 	mib[1] = KERN_OSTYPE;
     65 	len = sizeof(name->sysname);
     66 	if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1)
     67 		rval = -1;
     68 
     69 	mib[0] = CTL_KERN;
     70 	mib[1] = KERN_HOSTNAME;
     71 	len = sizeof(name->nodename);
     72 	if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1)
     73 		rval = -1;
     74 
     75 	mib[0] = CTL_KERN;
     76 	mib[1] = KERN_OSRELEASE;
     77 	len = sizeof(name->release);
     78 	if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1)
     79 		rval = -1;
     80 
     81 	/* The version may have newlines in it, turn them into spaces. */
     82 	mib[0] = CTL_KERN;
     83 	mib[1] = KERN_VERSION;
     84 	len = sizeof(name->version);
     85 	if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1)
     86 		rval = -1;
     87 	else
     88 		for (p = name->version; len--; ++p)
     89 			if (*p == '\n' || *p == '\t')
     90 				if (len > 1)
     91 					*p = ' ';
     92 				else
     93 					*p = '\0';
     94 
     95 	mib[0] = CTL_HW;
     96 	mib[1] = HW_MACHINE;
     97 	len = sizeof(name->machine);
     98 	if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1)
     99 		rval = -1;
    100 	return (rval);
    101 }
    102