usr/bin/uname/uname.c

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This source file includes following definitions.
usage
main
   1 /*
   2  * Copyright (c) 2006-2007, Kohsuke Ohtani
   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. Neither the name of the author nor the names of any co-contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29 
  30 #include <sys/utsname.h>
  31 
  32 #include <string.h>
  33 #include <unistd.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <errno.h>
  37 #include <stdio.h>
  38 
  39 #ifdef CMDBOX
  40 #define main(argc, argv)        uname_main(argc, argv)
  41 #endif
  42 
  43 #define MFLAG   0x01
  44 #define NFLAG   0x02
  45 #define RFLAG   0x04
  46 #define SFLAG   0x08
  47 #define VFLAG   0x10
  48 
  49 static void
  50 usage(void)
  51 {
  52         fprintf(stderr, "usage: uname [-amnsrv]\n");
  53         exit(1);
  54 }
  55 
  56 int
  57 main(int argc, char *argv[])
  58 {
  59         u_int flags;
  60         int ch;
  61         struct utsname uts;
  62 
  63         flags = 0;
  64         while ((ch = getopt(argc, argv, "amnrsv")) != EOF) {
  65                 switch(ch) {
  66                 case 'a':
  67                         flags |= (MFLAG | NFLAG | RFLAG | SFLAG | VFLAG);
  68                         break;
  69                 case 'm':
  70                         flags |= MFLAG;
  71                         break;
  72                 case 'n':
  73                         flags |= NFLAG;
  74                         break;
  75                 case 'r':
  76                         flags |= RFLAG;
  77                         break;
  78                 case 's':
  79                         flags |= SFLAG;
  80                         break;
  81                 case 'v':
  82                         flags |= VFLAG;
  83                         break;
  84                 case '?':
  85                 default:
  86                         usage();
  87                 }
  88         }
  89         argc -= optind;
  90         argv += optind;
  91 
  92         if (argc)
  93                 usage();
  94 
  95         if (!flags)
  96                 flags |= SFLAG;
  97 
  98         uname(&uts);
  99 
 100         if (flags & SFLAG)
 101                 printf("%s ", uts.sysname);
 102 
 103         if (flags & RFLAG)
 104                 printf("%s ", uts.release);
 105 
 106         if (flags & VFLAG)
 107                 printf("%s ", uts.version);
 108 
 109         if (flags & MFLAG)
 110                 printf("%s ", uts.machine);
 111 
 112         if (flags & NFLAG)
 113                 printf("%s", uts.nodename);
 114 
 115         putchar('\n');
 116         exit(0);
 117 }
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root/usr/bin/uname/uname.c

DEFINITIONS
