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Annotation of src/usr.bin/uname/uname.c, Revision 1.1.1.1

1.1       deraadt     1: /*
                      2:  * Copyright (c) 1994 Winning Strategies, Inc.
                      3:  * 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 Winning Strategies, Inc.
                     16:  * 4. The name of Winning Strategies, Inc. may not be used to endorse or
                     17:  *    promote products derived from this software without specific prior
                     18:  *    written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     21:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     22:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     23:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     24:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     25:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     26:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     27:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     28:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     29:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     30:  */
                     31:
                     32: #ifndef lint
                     33: static char rcsid[] = "$Id: uname.c,v 1.7 1994/12/20 01:28:57 jtc Exp $";
                     34: #endif /* not lint */
                     35:
                     36: #include <stdio.h>
                     37: #include <locale.h>
                     38: #include <unistd.h>
                     39: #include <sys/utsname.h>
                     40: #include <err.h>
                     41:
                     42: static void usage();
                     43:
                     44: #define        PRINT_SYSNAME   0x01
                     45: #define        PRINT_NODENAME  0x02
                     46: #define        PRINT_RELEASE   0x04
                     47: #define        PRINT_VERSION   0x08
                     48: #define        PRINT_MACHINE   0x10
                     49: #define        PRINT_ALL       0x1f
                     50:
                     51: int
                     52: main(argc, argv)
                     53:        int argc;
                     54:        char **argv;
                     55: {
                     56:        struct utsname u;
                     57:        int c;
                     58:        int space = 0;
                     59:        int print_mask = 0;
                     60:
                     61:        setlocale(LC_ALL, "");
                     62:
                     63:        while ((c = getopt(argc,argv,"amnrsv")) != -1 ) {
                     64:                switch ( c ) {
                     65:                case 'a':
                     66:                        print_mask |= PRINT_ALL;
                     67:                        break;
                     68:                case 'm':
                     69:                        print_mask |= PRINT_MACHINE;
                     70:                        break;
                     71:                case 'n':
                     72:                        print_mask |= PRINT_NODENAME;
                     73:                        break;
                     74:                case 'r':
                     75:                        print_mask |= PRINT_RELEASE;
                     76:                        break;
                     77:                case 's':
                     78:                        print_mask |= PRINT_SYSNAME;
                     79:                        break;
                     80:                case 'v':
                     81:                        print_mask |= PRINT_VERSION;
                     82:                        break;
                     83:                default:
                     84:                        usage();
                     85:                        /* NOTREACHED */
                     86:                }
                     87:        }
                     88:
                     89:        if (optind != argc) {
                     90:                usage();
                     91:                /* NOTREACHED */
                     92:        }
                     93:
                     94:        if (!print_mask) {
                     95:                print_mask = PRINT_SYSNAME;
                     96:        }
                     97:
                     98:        if (uname(&u)) {
                     99:                err(1, NULL);
                    100:                /* NOTREACHED */
                    101:        }
                    102:
                    103:        if (print_mask & PRINT_SYSNAME) {
                    104:                space++;
                    105:                fputs(u.sysname, stdout);
                    106:        }
                    107:        if (print_mask & PRINT_NODENAME) {
                    108:                if (space++) putchar(' ');
                    109:                fputs(u.nodename, stdout);
                    110:        }
                    111:        if (print_mask & PRINT_RELEASE) {
                    112:                if (space++) putchar(' ');
                    113:                fputs(u.release, stdout);
                    114:        }
                    115:        if (print_mask & PRINT_VERSION) {
                    116:                if (space++) putchar(' ');
                    117:                fputs(u.version, stdout);
                    118:        }
                    119:        if (print_mask & PRINT_MACHINE) {
                    120:                if (space++) putchar(' ');
                    121:                fputs(u.machine, stdout);
                    122:        }
                    123:        putchar('\n');
                    124:
                    125:        exit(0);
                    126:        /* NOTREACHED */
                    127: }
                    128:
                    129: static void
                    130: usage()
                    131: {
                    132:        fprintf(stderr, "usage: uname [-amnrsv]\n");
                    133:        exit(1);
                    134: }