Magellan Linux

  • Back to homepage
    • /[magellan-source]/trunk/mkinitrd-magellan/busybox/coreutils/uname.c

    Annotation of /trunk/mkinitrd-magellan/busybox/coreutils/uname.c

    Parent Directory Parent Directory | Revision Log Revision Log

    Revision 532 - (hide annotations) (download)
    Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
    File MIME type: text/plain
    File size: 2375 byte(s) 
    -import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
    1 niro 532 /* vi: set sw=4 ts=4: */
    2     /* uname -- print system information
    3     * Copyright (C) 1989-1999 Free Software Foundation, Inc.
    4     *
    5     * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
    6     */
    7    
    8     /* BB_AUDIT SUSv3 compliant */
    9     /* http://www.opengroup.org/onlinepubs/007904975/utilities/uname.html */
    10    
    11     /* Option Example
    12    
    13     -s, --sysname SunOS
    14     -n, --nodename rocky8
    15     -r, --release 4.0
    16     -v, --version
    17     -m, --machine sun
    18     -a, --all SunOS rocky8 4.0 sun
    19    
    20     The default behavior is equivalent to `-s'.
    21    
    22     David MacKenzie <djm@gnu.ai.mit.edu> */
    23    
    24     /* Busyboxed by Erik Andersen */
    25    
    26     /* Further size reductions by Glenn McGrath and Manuel Novoa III. */
    27    
    28     /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
    29     *
    30     * Now does proper error checking on i/o. Plus some further space savings.
    31     */
    32    
    33     #include <stdio.h>
    34     #include <stdlib.h>
    35     #include <stddef.h>
    36     #include <string.h>
    37     #include <unistd.h>
    38     #include <sys/types.h>
    39     #include <sys/utsname.h>
    40     #include "busybox.h"
    41    
    42     typedef struct {
    43     struct utsname name;
    44     char processor[8]; /* for "unknown" */
    45     } uname_info_t;
    46    
    47     static const char options[] = "snrvmpa";
    48     static const unsigned short int utsname_offset[] = {
    49     offsetof(uname_info_t,name.sysname),
    50     offsetof(uname_info_t,name.nodename),
    51     offsetof(uname_info_t,name.release),
    52     offsetof(uname_info_t,name.version),
    53     offsetof(uname_info_t,name.machine),
    54     offsetof(uname_info_t,processor)
    55     };
    56    
    57     int uname_main(int argc, char **argv)
    58     {
    59     uname_info_t uname_info;
    60     #if defined(__sparc__) && defined(__linux__)
    61     char *fake_sparc = getenv("FAKE_SPARC");
    62     #endif
    63     const unsigned short int *delta;
    64     char toprint;
    65    
    66     toprint = getopt32(argc, argv, options);
    67    
    68     if (argc != optind) {
    69     bb_show_usage();
    70     }
    71    
    72     if (toprint & (1 << 6)) {
    73     toprint = 0x3f;
    74     }
    75    
    76     if (toprint == 0) {
    77     toprint = 1; /* sysname */
    78     }
    79    
    80     if (uname(&uname_info.name) == -1) {
    81     bb_error_msg_and_die("cannot get system name");
    82     }
    83    
    84     #if defined(__sparc__) && defined(__linux__)
    85     if ((fake_sparc != NULL)
    86     && ((fake_sparc[0] == 'y')
    87     || (fake_sparc[0] == 'Y'))) {
    88     strcpy(uname_info.name.machine, "sparc");
    89     }
    90     #endif
    91    
    92     strcpy(uname_info.processor, "unknown");
    93    
    94     delta = utsname_offset;
    95     do {
    96     if (toprint & 1) {
    97     printf(((char *)(&uname_info)) + *delta);
    98     if (toprint > 1) {
    99     putchar(' ');
    100     }
    101     }
    102     ++delta;
    103     } while (toprint >>= 1);
    104     putchar('\n');
    105    
    106     fflush_stdout_and_exit(EXIT_SUCCESS);
    107     }