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path: root/i/pc104/initrd/conf/busybox/miscutils/adjtimex.c
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Diffstat (limited to 'i/pc104/initrd/conf/busybox/miscutils/adjtimex.c')
-rw-r--r--i/pc104/initrd/conf/busybox/miscutils/adjtimex.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/miscutils/adjtimex.c b/i/pc104/initrd/conf/busybox/miscutils/adjtimex.c
new file mode 100644
index 0000000..22fd39e
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/miscutils/adjtimex.c
@@ -0,0 +1,118 @@
+/* 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 "busybox.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(argc, 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);
+}