NetBSD/dist/ntp/libntp/uglydate.c

51 lines
1005 B
C

/* $NetBSD: uglydate.c,v 1.2 2003/12/04 16:23:37 drochner Exp $ */
/*
* uglydate - convert a time stamp to something barely readable
* The string returned is 37 characters long.
*/
#include <stdio.h>
#include "ntp_fp.h"
#include "ntp_unixtime.h"
#include "lib_strbuf.h"
#include "ntp_stdlib.h"
char *
uglydate(
l_fp *ts
)
{
char *bp;
char *timep;
struct tm *tm;
time_t sec;
long msec;
int year;
timep = ulfptoa(ts, 6); /* returns max 17 characters */
LIB_GETBUF(bp);
sec = ts->l_ui - JAN_1970;
msec = ts->l_uf / 4294967; /* fract / (2**32/1000) */
tm = gmtime(&sec);
if (ts->l_ui == 0) {
/*
* Probably not a real good thing to do. Oh, well.
*/
year = 0;
tm->tm_yday = 0;
tm->tm_hour = 0;
tm->tm_min = 0;
tm->tm_sec = 0;
} else {
year = tm->tm_year;
while (year >= 100)
year -= 100;
}
(void) sprintf(bp, "%17s %02d:%03d:%02d:%02d:%02d.%03ld",
timep, year, tm->tm_yday, tm->tm_hour, tm->tm_min,
tm->tm_sec, msec);
return bp;
}