Magellan Linux

  • Back to homepage
    • /[magellan-source]/trunk/mkinitrd-magellan/busybox/miscutils/adjtimex.c

    Annotation of /trunk/mkinitrd-magellan/busybox/miscutils/adjtimex.c

    Parent Directory Parent Directory | Revision Log Revision Log

    Revision 984 - (hide annotations) (download)
    Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
    File MIME type: text/plain
    File size: 3078 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1 niro 532 /* vi: set sw=4 ts=4: */
    2     /*
    3     * adjtimex.c - read, and possibly modify, the Linux kernel `timex' variables.
    4     *
    5     * Originally written: October 1997
    6     * Last hack: March 2001
    7     * Copyright 1997, 2000, 2001 Larry Doolittle <LRDoolittle@lbl.gov>
    8     *
    9     * busyboxed 20 March 2001, Larry Doolittle <ldoolitt@recycle.lbl.gov>
    10     *
    11     * Licensed under GPLv2 or later, see file License in this tarball for details.
    12     */
    13    
    14 niro 816 #include "libbb.h"
    15 niro 532 #include <sys/timex.h>
    16    
    17 niro 816 static const uint16_t statlist_bit[] = {
    18     STA_PLL,
    19     STA_PPSFREQ,
    20     STA_PPSTIME,
    21     STA_FLL,
    22     STA_INS,
    23     STA_DEL,
    24     STA_UNSYNC,
    25     STA_FREQHOLD,
    26     STA_PPSSIGNAL,
    27     STA_PPSJITTER,
    28     STA_PPSWANDER,
    29     STA_PPSERROR,
    30     STA_CLOCKERR,
    31     0
    32     };
    33     static const char statlist_name[] =
    34     "PLL" "\0"
    35     "PPSFREQ" "\0"
    36     "PPSTIME" "\0"
    37     "FFL" "\0"
    38     "INS" "\0"
    39     "DEL" "\0"
    40     "UNSYNC" "\0"
    41     "FREQHOLD" "\0"
    42     "PPSSIGNAL" "\0"
    43     "PPSJITTER" "\0"
    44     "PPSWANDER" "\0"
    45     "PPSERROR" "\0"
    46     "CLOCKERR"
    47     ;
    48 niro 532
    49 niro 816 static const char ret_code_descript[] =
    50     "clock synchronized" "\0"
    51     "insert leap second" "\0"
    52     "delete leap second" "\0"
    53     "leap second in progress" "\0"
    54     "leap second has occurred" "\0"
    55     "clock not synchronized"
    56     ;
    57 niro 532
    58 niro 816 int adjtimex_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
    59 niro 984 int adjtimex_main(int argc UNUSED_PARAM, char **argv)
    60 niro 532 {
    61     enum {
    62     OPT_quiet = 0x1
    63     };
    64     unsigned opt;
    65     char *opt_o, *opt_f, *opt_p, *opt_t;
    66     struct timex txc;
    67 niro 816 int i, ret;
    68 niro 532 const char *descript;
    69    
    70 niro 984 opt_complementary = "=0"; /* no valid non-option parameters */
    71 niro 816 opt = getopt32(argv, "qo:f:p:t:",
    72 niro 532 &opt_o, &opt_f, &opt_p, &opt_t);
    73 niro 984 txc.modes = 0;
    74 niro 532 //if (opt & 0x1) // -q
    75     if (opt & 0x2) { // -o
    76 niro 816 txc.offset = xatol(opt_o);
    77 niro 532 txc.modes |= ADJ_OFFSET_SINGLESHOT;
    78     }
    79     if (opt & 0x4) { // -f
    80 niro 816 txc.freq = xatol(opt_f);
    81 niro 532 txc.modes |= ADJ_FREQUENCY;
    82     }
    83     if (opt & 0x8) { // -p
    84 niro 816 txc.constant = xatol(opt_p);
    85 niro 532 txc.modes |= ADJ_TIMECONST;
    86     }
    87     if (opt & 0x10) { // -t
    88 niro 816 txc.tick = xatol(opt_t);
    89 niro 532 txc.modes |= ADJ_TICK;
    90     }
    91    
    92     ret = adjtimex(&txc);
    93    
    94 niro 816 if (ret < 0) {
    95     bb_perror_nomsg_and_die();
    96     }
    97 niro 532
    98 niro 816 if (!(opt & OPT_quiet)) {
    99     int sep;
    100     const char *name;
    101    
    102 niro 532 printf(
    103     " mode: %d\n"
    104     "-o offset: %ld\n"
    105     "-f frequency: %ld\n"
    106     " maxerror: %ld\n"
    107     " esterror: %ld\n"
    108 niro 816 " status: %d (",
    109 niro 532 txc.modes, txc.offset, txc.freq, txc.maxerror,
    110     txc.esterror, txc.status);
    111    
    112     /* representative output of next code fragment:
    113     "PLL | PPSTIME" */
    114 niro 816 name = statlist_name;
    115     sep = 0;
    116     for (i = 0; statlist_bit[i]; i++) {
    117     if (txc.status & statlist_bit[i]) {
    118     if (sep)
    119     fputs(" | ", stdout);
    120     fputs(name, stdout);
    121     sep = 1;
    122 niro 532 }
    123 niro 816 name += strlen(name) + 1;
    124 niro 532 }
    125    
    126     descript = "error";
    127 niro 816 if (ret <= 5)
    128     descript = nth_string(ret_code_descript, ret);
    129     printf(")\n"
    130 niro 532 "-p timeconstant: %ld\n"
    131     " precision: %ld\n"
    132     " tolerance: %ld\n"
    133     "-t tick: %ld\n"
    134     " time.tv_sec: %ld\n"
    135     " time.tv_usec: %ld\n"
    136     " return value: %d (%s)\n",
    137     txc.constant,
    138     txc.precision, txc.tolerance, txc.tick,
    139     (long)txc.time.tv_sec, (long)txc.time.tv_usec, ret, descript);
    140     }
    141 niro 816
    142     return 0;
    143 niro 532 }