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    revision 983 by niro, Fri Apr 24 18:33:46 2009 UTC revision 984 by niro, Sun May 30 11:32:42 2010 UTC
    # Line 9  Line 9 
    9  /* http://www.opengroup.org/onlinepubs/007904975/utilities/uname.html */  /* http://www.opengroup.org/onlinepubs/007904975/utilities/uname.html */
    10    
    11  /* Option Example  /* Option Example
    12     * -s, --sysname SunOS
    13     * -n, --nodename rocky8
    14     * -r, --release 4.0
    15     * -v, --version
    16     * -m, --machine sun
    17     * -a, --all SunOS rocky8 4.0  sun
    18     *
    19     * The default behavior is equivalent to '-s'.
    20     *
    21     * David MacKenzie <djm@gnu.ai.mit.edu>
    22     *
    23     * GNU coreutils 6.10:
    24     * Option:                      struct   Example(s):
    25     *                              utsname
    26     *                              field:
    27     * -s, --kernel-name            sysname  Linux
    28     * -n, --nodename               nodename localhost.localdomain
    29     * -r, --kernel-release         release  2.6.29
    30     * -v, --kernel-version         version  #1 SMP Sun Jan 11 20:52:37 EST 2009
    31     * -m, --machine                machine  x86_64   i686
    32     * -p, --processor              (none)   x86_64   i686
    33     * -i, --hardware-platform      (none)   x86_64   i386
    34     *      NB: vanilla coreutils reports "unknown" -p and -i,
    35     *      x86_64 and i686/i386 shown above are Fedora's inventions.
    36     * -o, --operating-system       (none)   GNU/Linux
    37     * -a, --all: all of the above, in the order shown.
    38     *      If -p or -i is not known, don't show them
    39     */
    40    
    41     -s, --sysname SunOS  /* Busyboxed by Erik Andersen
        -n, --nodename rocky8  
        -r, --release 4.0  
        -v, --version  
        -m, --machine sun  
        -a, --all SunOS rocky8 4.0  sun  
       
        The default behavior is equivalent to '-s'.  
       
        David MacKenzie <djm@gnu.ai.mit.edu> */  
       
     /* Busyboxed by Erik Andersen */  
       
     /* Further size reductions by Glenn McGrath and Manuel Novoa III. */  
       
     /* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)  
    42   *   *
    43   * Now does proper error checking on i/o.  Plus some further space savings.   * Before 2003: Glenn McGrath and Manuel Novoa III
    44     *  Further size reductions.
    45     * Mar 16, 2003: Manuel Novoa III (mjn3@codepoet.org)
    46     *  Now does proper error checking on i/o.  Plus some further space savings.
    47     * Jan 2009:
    48     *  Fix handling of -a to not print "unknown", add -o and -i support.
    49   */   */
    50    
     #include <sys/utsname.h>  
    51  #include "libbb.h"  #include "libbb.h"
    52    /* After libbb.h, since it needs sys/types.h on some systems */
    53    #include <sys/utsname.h>
    54    
    55  typedef struct {  typedef struct {
    56   struct utsname name;   struct utsname name;
    57   char processor[8]; /* for "unknown" */   char processor[sizeof(((struct utsname*)NULL)->machine)];
    58     char platform[sizeof(((struct utsname*)NULL)->machine)];
    59     char os[sizeof("GNU/Linux")];
    60  } uname_info_t;  } uname_info_t;
    61    
    62  static const char options[] ALIGN1 = "snrvmpa";  static const char options[] ALIGN1 = "snrvmpioa";
    63  static const unsigned short utsname_offset[] = {  static const unsigned short utsname_offset[] = {
    64   offsetof(uname_info_t, name.sysname),   offsetof(uname_info_t, name.sysname), /* -s */
    65   offsetof(uname_info_t, name.nodename),   offsetof(uname_info_t, name.nodename), /* -n */
    66   offsetof(uname_info_t, name.release),   offsetof(uname_info_t, name.release), /* -r */
    67   offsetof(uname_info_t, name.version),   offsetof(uname_info_t, name.version), /* -v */
    68   offsetof(uname_info_t, name.machine),   offsetof(uname_info_t, name.machine), /* -m */
    69   offsetof(uname_info_t, processor)   offsetof(uname_info_t, processor), /* -p */
    70     offsetof(uname_info_t, platform), /* -i */
    71     offsetof(uname_info_t, os), /* -o */
    72  };  };
    73    
    74  int uname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;  int uname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
    75  int uname_main(int argc UNUSED_PARAM, char **argv)  int uname_main(int argc UNUSED_PARAM, char **argv)
    76  {  {
    77    #if ENABLE_LONG_OPTS
    78     static const char uname_longopts[] ALIGN1 =
    79     /* name, has_arg, val */
    80     "all\0"               No_argument       "a"
    81     "kernel-name\0"       No_argument       "s"
    82     "nodename\0"          No_argument       "n"
    83     "kernel-release\0"    No_argument       "r"
    84     "release\0"           No_argument       "r"
    85     "kernel-version\0"    No_argument       "v"
    86     "machine\0"           No_argument       "m"
    87     "processor\0"         No_argument       "p"
    88     "hardware-platform\0" No_argument       "i"
    89     "operating-system\0"  No_argument       "o"
    90     ;
    91    #endif
    92   uname_info_t uname_info;   uname_info_t uname_info;
    93  #if defined(__sparc__) && defined(__linux__)  #if defined(__sparc__) && defined(__linux__)
    94   char *fake_sparc = getenv("FAKE_SPARC");   char *fake_sparc = getenv("FAKE_SPARC");
    95  #endif  #endif
    96     const char *unknown_str = "unknown";
    97     const char *fmt;
    98   const unsigned short *delta;   const unsigned short *delta;
    99   char toprint;   unsigned toprint;
    100    
    101     IF_LONG_OPTS(applet_long_options = uname_longopts);
    102   toprint = getopt32(argv, options);   toprint = getopt32(argv, options);
    103    
    104   if (argv[optind]) { /* coreutils-6.9 compat */   if (argv[optind]) { /* coreutils-6.9 compat */
    105   bb_show_usage();   bb_show_usage();
    106   }   }
    107    
    108   if (toprint & (1 << 6)) { /* -a => all opts on */   if (toprint & (1 << 8)) { /* -a => all opts on */
    109   toprint = 0x3f;   toprint = (1 << 8) - 1;
    110     unknown_str = ""; /* -a does not print unknown fields */
    111   }   }
    112    
    113   if (toprint == 0) { /* no opts => -s (sysname) */   if (toprint == 0) { /* no opts => -s (sysname) */
    # Line 79  int uname_main(int argc UNUSED_PARAM, ch Line 121  int uname_main(int argc UNUSED_PARAM, ch
    121   strcpy(uname_info.name.machine, "sparc");   strcpy(uname_info.name.machine, "sparc");
    122   }   }
    123  #endif  #endif
    124     strcpy(uname_info.processor, unknown_str);
    125   strcpy(uname_info.processor, "unknown");   strcpy(uname_info.platform, unknown_str);
    126     strcpy(uname_info.os, "GNU/Linux");
    127    #if 0
    128     /* Fedora does something like this */
    129     strcpy(uname_info.processor, uname_info.name.machine);
    130     strcpy(uname_info.platform, uname_info.name.machine);
    131     if (uname_info.platform[0] == 'i'
    132     && uname_info.platform[1]
    133     && uname_info.platform[2] == '8'
    134     && uname_info.platform[3] == '6'
    135     ) {
    136     uname_info.platform[1] = '3';
    137     }
    138    #endif
    139    
    140   delta = utsname_offset;   delta = utsname_offset;
    141     fmt = " %s" + 1;
    142   do {   do {
    143   if (toprint & 1) {   if (toprint & 1) {
    144   /* printf would not be safe here */   const char *p = (char *)(&uname_info) + *delta;
    145   fputs((char *)(&uname_info) + *delta, stdout);   if (p[0]) {
    146   if (toprint > 1) {   printf(fmt, p);
    147   bb_putchar(' ');   fmt = " %s";
    148   }   }
    149   }   }
    150   ++delta;   ++delta;
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