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Diffstat (limited to 'adjtimex.c')
| -rw-r--r-- | adjtimex.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/adjtimex.c b/adjtimex.c deleted file mode 100644 index e3c160d..0000000 --- a/adjtimex.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - * 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> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (Version 2, - * June 1991) as published by the Free Software Foundation. At the - * time of writing, that license was published by the FSF with the URL - * http://www.gnu.org/copyleft/gpl.html, and is incorporated herein by - * reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This adjtimex(1) is very similar in intent to adjtimex(8) by Steven - * Dick <ssd@nevets.oau.org> and Jim Van Zandt <jrv@vanzandt.mv.com> - * (see http://metalab.unc.edu/pub/Linux/system/admin/time/adjtimex*). - * That version predates this one, and is _much_ bigger and more - * featureful. My independently written version was very similar to - * Steven's from the start, because they both follow the kernel timex - * structure. I further tweaked this version to be equivalent to Steven's - * where possible, but I don't like getopt_long, so the actual usage - * syntax is incompatible. - * - * Amazingly enough, my Red Hat 5.2 sys/timex (and sub-includes) - * don't actually give a prototype for adjtimex(2), so building - * this code (with -Wall) gives a warning. Later versions of - * glibc fix this issue. - * - * This program is too simple for a Makefile, just build with: - * gcc -Wall -O adjtimex.c -o adjtimex - * - * busyboxed 20 March 2001, Larry Doolittle <ldoolitt@recycle.lbl.gov> - * It will autosense if it is built in a busybox environment, based - * on the BB_VER preprocessor macro. - */ - -#include <stdio.h> -#include <sys/types.h> -#include <stdlib.h> -#include <unistd.h> - -#if __GNU_LIBRARY__ < 5 -#include <sys/timex.h> -extern int adjtimex(struct timex *buf); -#else -#include <sys/timex.h> -#endif - -#ifdef BB_VER -#include "busybox.h" -#endif - -static struct {int bit; 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 char *ret_code_descript[] = { - "clock synchronized", - "insert leap second", - "delete leap second", - "leap second in progress", - "leap second has occurred", - "clock not synchronized" }; - -#ifdef BB_VER -#define main adjtimex_main -#else -void usage(char *prog) -{ - fprintf(stderr, - "Usage: %s [ -q ] [ -o offset ] [ -f frequency ] [ -p timeconstant ] [ -t tick ]\n", - prog); -} -#define show_usage() usage(argv[0]) -#endif - -int main(int argc, char ** argv) -{ - struct timex txc; - int quiet=0; - int c, i, ret, sep; - char *descript; - txc.modes=0; - for (;;) { - c = getopt( argc, argv, "qo:f:p:t:"); - if (c == EOF) break; - switch (c) { - case 'q': - quiet=1; - break; - case 'o': - txc.offset = atoi(optarg); - txc.modes |= ADJ_OFFSET_SINGLESHOT; - break; - case 'f': - txc.freq = atoi(optarg); - txc.modes |= ADJ_FREQUENCY; - break; - case 'p': - txc.constant = atoi(optarg); - txc.modes |= ADJ_TIMECONST; - break; - case 't': - txc.tick = atoi(optarg); - txc.modes |= ADJ_TICK; - break; - default: - show_usage(); - exit(1); - } - } - if (argc != optind) { /* no valid non-option parameters */ - show_usage(); - exit(1); - } - - ret = adjtimex(&txc); - - if (ret < 0) perror("adjtimex"); - - if (!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); -} |