Contents of /trunk/mkinitrd-magellan/busybox/miscutils/adjtimex.c
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Sun May 30 11:32:42 2010 UTC (14 years, 4 months ago) by niro
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Sun May 30 11:32:42 2010 UTC (14 years, 4 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 | /* 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 | #include "libbb.h" |
15 | #include <sys/timex.h> |
16 | |
17 | 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 | |
49 | 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 | |
58 | int adjtimex_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
59 | int adjtimex_main(int argc UNUSED_PARAM, char **argv) |
60 | { |
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 | int i, ret; |
68 | const char *descript; |
69 | |
70 | opt_complementary = "=0"; /* no valid non-option parameters */ |
71 | opt = getopt32(argv, "qo:f:p:t:", |
72 | &opt_o, &opt_f, &opt_p, &opt_t); |
73 | txc.modes = 0; |
74 | //if (opt & 0x1) // -q |
75 | if (opt & 0x2) { // -o |
76 | txc.offset = xatol(opt_o); |
77 | txc.modes |= ADJ_OFFSET_SINGLESHOT; |
78 | } |
79 | if (opt & 0x4) { // -f |
80 | txc.freq = xatol(opt_f); |
81 | txc.modes |= ADJ_FREQUENCY; |
82 | } |
83 | if (opt & 0x8) { // -p |
84 | txc.constant = xatol(opt_p); |
85 | txc.modes |= ADJ_TIMECONST; |
86 | } |
87 | if (opt & 0x10) { // -t |
88 | txc.tick = xatol(opt_t); |
89 | txc.modes |= ADJ_TICK; |
90 | } |
91 | |
92 | ret = adjtimex(&txc); |
93 | |
94 | if (ret < 0) { |
95 | bb_perror_nomsg_and_die(); |
96 | } |
97 | |
98 | if (!(opt & OPT_quiet)) { |
99 | int sep; |
100 | const char *name; |
101 | |
102 | printf( |
103 | " mode: %d\n" |
104 | "-o offset: %ld\n" |
105 | "-f frequency: %ld\n" |
106 | " maxerror: %ld\n" |
107 | " esterror: %ld\n" |
108 | " status: %d (", |
109 | 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 | 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 | } |
123 | name += strlen(name) + 1; |
124 | } |
125 | |
126 | descript = "error"; |
127 | if (ret <= 5) |
128 | descript = nth_string(ret_code_descript, ret); |
129 | printf(")\n" |
130 | "-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 | |
142 | return 0; |
143 | } |