+/* vi: set sw=4 ts=4: */
/*
* adjtimex.c - read, and possibly modify, the Linux kernel `timex' variables.
*
* 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 <stdio.h>
-#include <sys/types.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/timex.h>
#include "busybox.h"
+#include <sys/timex.h>
static const struct {int bit; const char *name;} statlist[] = {
{ STA_PLL, "PLL" },
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 quiet=0;
- int c, i, ret, sep;
+ int i, ret, sep;
const 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:
- bb_show_usage();
- exit(1);
- }
+
+ opt = getopt32(argc, argv, "qo:f:p:t:",
+ &opt_o, &opt_f, &opt_p, &opt_t);
+ //if (opt & 0x1) // -q
+ if (opt & 0x2) { // -o
+ txc.offset = xatoi(opt_o);
+ txc.modes |= ADJ_OFFSET_SINGLESHOT;
+ }
+ if (opt & 0x4) { // -f
+ txc.freq = xatou(opt_f);
+ txc.modes |= ADJ_FREQUENCY;
+ }
+ if (opt & 0x8) { // -p
+ txc.constant = xatoi(opt_p);
+ txc.modes |= ADJ_TIMECONST;
+ }
+ if (opt & 0x10) { // -t
+ txc.tick = xatoi(opt_t);
+ txc.modes |= ADJ_TICK;
}
if (argc != optind) { /* no valid non-option parameters */
bb_show_usage();
- exit(1);
}
ret = adjtimex(&txc);
if (ret < 0) perror("adjtimex");
- if (!quiet && ret>=0) {
+ if (!(opt & OPT_quiet) && ret>=0) {
printf(
" mode: %d\n"
"-o offset: %ld\n"