NetBSD/dist/bind/lib/bsd/gettimeofday.c
2001-05-17 22:41:07 +00:00

63 lines
1.2 KiB
C

#ifndef LINT
static const char rcsid[] = "$Id: gettimeofday.c,v 1.1.1.1 2001/05/17 22:41:07 itojun Exp $";
#endif
#include "port_before.h"
#include <stdio.h>
#include <syslog.h>
#include <sys/time.h>
#include "port_after.h"
#if !defined(NEED_GETTIMEOFDAY)
/*
* gettimeofday() occasionally returns invalid tv_usec on some platforms.
*/
#define MILLION 1000000
#undef gettimeofday
int
isc__gettimeofday(struct timeval *tp, struct timezone *tzp) {
int res;
res = gettimeofday(tp, tzp);
if (res < 0)
return (res);
if (tp == NULL)
return (res);
if (tp->tv_usec < 0) {
do {
tp->tv_usec += MILLION;
tp->tv_sec--;
} while (tp->tv_usec < 0);
goto log;
} else if (tp->tv_usec > MILLION) {
do {
tp->tv_usec -= MILLION;
tp->tv_sec++;
} while (tp->tv_usec > MILLION);
goto log;
}
return (res);
log:
syslog(LOG_ERR, "gettimeofday: tv_usec out of range\n");
return (res);
}
#else
int
gettimeofday(struct timeval *tvp, struct _TIMEZONE *tzp) {
time_t clock, time(time_t *);
if (time(&clock) == (time_t) -1)
return (-1);
if (tvp) {
tvp->tv_sec = clock;
tvp->tv_usec = 0;
}
if (tzp) {
tzp->tz_minuteswest = 0;
tzp->tz_dsttime = 0;
}
return (0);
}
#endif /*NEED_GETTIMEOFDAY*/