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uname.c revision 1.1 
      1 /*-
      2  * Copyright (c) 1994
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #if defined(LIBC_SCCS) && !defined(lint)
     35 static char sccsid[] = "@(#)uname.c	8.1 (Berkeley) 1/4/94";
     36 #endif /* LIBC_SCCS and not lint */
     37 
     38 #include <sys/param.h>
     39 #include <sys/sysctl.h>
     40 #include <sys/utsname.h>
     41 
     42 int
     43 uname(name)
     44 	struct utsname *name;
     45 {
     46 	int mib[2], rval;
     47 	size_t len;
     48 	char *p;
     49 
     50 	rval = 0;
     51 
     52 	mib[0] = CTL_KERN;
     53 	mib[1] = KERN_OSTYPE;
     54 	len = sizeof(name->sysname);
     55 	if (sysctl(mib, 2, &name->sysname, &len, NULL, 0) == -1)
     56 		rval = -1;
     57 
     58 	mib[0] = CTL_KERN;
     59 	mib[1] = KERN_HOSTNAME;
     60 	len = sizeof(name->nodename);
     61 	if (sysctl(mib, 2, &name->nodename, &len, NULL, 0) == -1)
     62 		rval = -1;
     63 
     64 	mib[0] = CTL_KERN;
     65 	mib[1] = KERN_OSRELEASE;
     66 	len = sizeof(name->release);
     67 	if (sysctl(mib, 2, &name->release, &len, NULL, 0) == -1)
     68 		rval = -1;
     69 
     70 	/* The version may have newlines in it, turn them into spaces. */
     71 	mib[0] = CTL_KERN;
     72 	mib[1] = KERN_VERSION;
     73 	len = sizeof(name->version);
     74 	if (sysctl(mib, 2, &name->version, &len, NULL, 0) == -1)
     75 		rval = -1;
     76 	else
     77 		for (p = name->version; len--; ++p)
     78 			if (*p == '\n' || *p == '\t')
     79 				if (len > 1)
     80 					*p = ' ';
     81 				else
     82 					*p = '\0';
     83 
     84 	mib[0] = CTL_HW;
     85 	mib[1] = HW_MACHINE;
     86 	len = sizeof(name->machine);
     87 	if (sysctl(mib, 2, &name->machine, &len, NULL, 0) == -1)
     88 		rval = -1;
     89 	return (rval);
     90 }
     91