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uname.c revision 1.9 
      1 /*	$NetBSD: uname.c,v 1.9 1997/10/20 02:16:39 lukem Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994 Winning Strategies, Inc.
      5  * 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 Winning Strategies, Inc.
     18  * 4. The name of Winning Strategies, Inc. may not be used to endorse or
     19  *    promote products derived from this software without specific prior
     20  *    written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 #ifndef lint
     36 __RCSID("$NetBSD: uname.c,v 1.9 1997/10/20 02:16:39 lukem Exp $");
     37 #endif /* not lint */
     38 
     39 #include <stdio.h>
     40 #include <locale.h>
     41 #include <unistd.h>
     42 #include <sys/utsname.h>
     43 #include <err.h>
     44 
     45 int	main __P((int, char **));
     46 static void usage __P((void));
     47 
     48 #define	PRINT_SYSNAME	0x01
     49 #define	PRINT_NODENAME	0x02
     50 #define	PRINT_RELEASE	0x04
     51 #define	PRINT_VERSION	0x08
     52 #define	PRINT_MACHINE	0x10
     53 #define	PRINT_ALL	0x1f
     54 
     55 int
     56 main(argc, argv)
     57 	int argc;
     58 	char **argv;
     59 {
     60 	struct utsname u;
     61 	int c;
     62 	int space = 0;
     63 	int print_mask = 0;
     64 
     65 	setlocale(LC_ALL, "");
     66 
     67 	while ((c = getopt(argc,argv,"amnrsv")) != -1 ) {
     68 		switch ( c ) {
     69 		case 'a':
     70 			print_mask |= PRINT_ALL;
     71 			break;
     72 		case 'm':
     73 			print_mask |= PRINT_MACHINE;
     74 			break;
     75 		case 'n':
     76 			print_mask |= PRINT_NODENAME;
     77 			break;
     78 		case 'r':
     79 			print_mask |= PRINT_RELEASE;
     80 			break;
     81 		case 's':
     82 			print_mask |= PRINT_SYSNAME;
     83 			break;
     84 		case 'v':
     85 			print_mask |= PRINT_VERSION;
     86 			break;
     87 		default:
     88 			usage();
     89 			/* NOTREACHED */
     90 		}
     91 	}
     92 
     93 	if (optind != argc) {
     94 		usage();
     95 		/* NOTREACHED */
     96 	}
     97 
     98 	if (!print_mask) {
     99 		print_mask = PRINT_SYSNAME;
    100 	}
    101 
    102 	if (uname(&u)) {
    103 		err(1, "uname");
    104 		/* NOTREACHED */
    105 	}
    106 
    107 	if (print_mask & PRINT_SYSNAME) {
    108 		space++;
    109 		fputs(u.sysname, stdout);
    110 	}
    111 	if (print_mask & PRINT_NODENAME) {
    112 		if (space++) putchar(' ');
    113 		fputs(u.nodename, stdout);
    114 	}
    115 	if (print_mask & PRINT_RELEASE) {
    116 		if (space++) putchar(' ');
    117 		fputs(u.release, stdout);
    118 	}
    119 	if (print_mask & PRINT_VERSION) {
    120 		if (space++) putchar(' ');
    121 		fputs(u.version, stdout);
    122 	}
    123 	if (print_mask & PRINT_MACHINE) {
    124 		if (space++) putchar(' ');
    125 		fputs(u.machine, stdout);
    126 	}
    127 	putchar('\n');
    128 
    129 	exit(0);
    130 	/* NOTREACHED */
    131 }
    132 
    133 static void
    134 usage()
    135 {
    136 	fprintf(stderr, "usage: uname [-amnrsv]\n");
    137 	exit(1);
    138 }
    139