mirror of
https://github.com/sheumann/hush.git
synced 2024-12-21 23:29:34 +00:00
fe7cd642b0
(add/remove: 0/0 grow/shrink: 12/131 up/down: 91/-727) Total: -636 bytes text data bss dec hex filename 773469 1058 11092 785619 bfcd3 busybox_old 772644 1058 11092 784794 bf99a busybox_unstripped
124 lines
2.9 KiB
C
124 lines
2.9 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* adjtimex.c - read, and possibly modify, the Linux kernel `timex' variables.
|
|
*
|
|
* Originally written: October 1997
|
|
* Last hack: March 2001
|
|
* Copyright 1997, 2000, 2001 Larry Doolittle <LRDoolittle@lbl.gov>
|
|
*
|
|
* busyboxed 20 March 2001, Larry Doolittle <ldoolitt@recycle.lbl.gov>
|
|
*
|
|
* Licensed under GPLv2 or later, see file License in this tarball for details.
|
|
*/
|
|
|
|
#include "libbb.h"
|
|
#include <sys/timex.h>
|
|
|
|
static const struct {
|
|
int bit;
|
|
const char *name;
|
|
} statlist[] = {
|
|
{ STA_PLL, "PLL" },
|
|
{ STA_PPSFREQ, "PPSFREQ" },
|
|
{ STA_PPSTIME, "PPSTIME" },
|
|
{ STA_FLL, "FFL" },
|
|
{ STA_INS, "INS" },
|
|
{ STA_DEL, "DEL" },
|
|
{ STA_UNSYNC, "UNSYNC" },
|
|
{ STA_FREQHOLD, "FREQHOLD" },
|
|
{ STA_PPSSIGNAL, "PPSSIGNAL" },
|
|
{ STA_PPSJITTER, "PPSJITTER" },
|
|
{ STA_PPSWANDER, "PPSWANDER" },
|
|
{ STA_PPSERROR, "PPSERROR" },
|
|
{ STA_CLOCKERR, "CLOCKERR" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const char *const ret_code_descript[] = {
|
|
"clock synchronized",
|
|
"insert leap second",
|
|
"delete leap second",
|
|
"leap second in progress",
|
|
"leap second has occurred",
|
|
"clock not synchronized"
|
|
};
|
|
|
|
int adjtimex_main(int argc, char **argv);
|
|
int adjtimex_main(int argc, char **argv)
|
|
{
|
|
enum {
|
|
OPT_quiet = 0x1
|
|
};
|
|
unsigned opt;
|
|
char *opt_o, *opt_f, *opt_p, *opt_t;
|
|
struct timex txc;
|
|
int i, ret, sep;
|
|
const char *descript;
|
|
txc.modes=0;
|
|
|
|
opt = getopt32(argv, "qo:f:p:t:",
|
|
&opt_o, &opt_f, &opt_p, &opt_t);
|
|
//if (opt & 0x1) // -q
|
|
if (opt & 0x2) { // -o
|
|
txc.offset = xatol(opt_o);
|
|
txc.modes |= ADJ_OFFSET_SINGLESHOT;
|
|
}
|
|
if (opt & 0x4) { // -f
|
|
txc.freq = xatol(opt_f);
|
|
txc.modes |= ADJ_FREQUENCY;
|
|
}
|
|
if (opt & 0x8) { // -p
|
|
txc.constant = xatol(opt_p);
|
|
txc.modes |= ADJ_TIMECONST;
|
|
}
|
|
if (opt & 0x10) { // -t
|
|
txc.tick = xatol(opt_t);
|
|
txc.modes |= ADJ_TICK;
|
|
}
|
|
if (argc != optind) { /* no valid non-option parameters */
|
|
bb_show_usage();
|
|
}
|
|
|
|
ret = adjtimex(&txc);
|
|
|
|
if (ret < 0) perror("adjtimex");
|
|
|
|
if (!(opt & OPT_quiet) && ret>=0) {
|
|
printf(
|
|
" mode: %d\n"
|
|
"-o offset: %ld\n"
|
|
"-f frequency: %ld\n"
|
|
" maxerror: %ld\n"
|
|
" esterror: %ld\n"
|
|
" status: %d ( ",
|
|
txc.modes, txc.offset, txc.freq, txc.maxerror,
|
|
txc.esterror, txc.status);
|
|
|
|
/* representative output of next code fragment:
|
|
"PLL | PPSTIME" */
|
|
sep=0;
|
|
for (i=0; statlist[i].name; i++) {
|
|
if (txc.status & statlist[i].bit) {
|
|
if (sep) fputs(" | ",stdout);
|
|
fputs(statlist[i].name,stdout);
|
|
sep=1;
|
|
}
|
|
}
|
|
|
|
descript = "error";
|
|
if (ret >= 0 && ret <= 5) descript = ret_code_descript[ret];
|
|
printf(" )\n"
|
|
"-p timeconstant: %ld\n"
|
|
" precision: %ld\n"
|
|
" tolerance: %ld\n"
|
|
"-t tick: %ld\n"
|
|
" time.tv_sec: %ld\n"
|
|
" time.tv_usec: %ld\n"
|
|
" return value: %d (%s)\n",
|
|
txc.constant,
|
|
txc.precision, txc.tolerance, txc.tick,
|
|
(long)txc.time.tv_sec, (long)txc.time.tv_usec, ret, descript);
|
|
}
|
|
return (ret<0);
|
|
}
|